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ftn.cpp

//____________________________________________________________
//
//          PROGRAM:    General preprocessor
//          MODULE:           ftn.cpp
//          DESCRIPTION:      Fortran text generator
//
//  The contents of this file are subject to the Interbase Public
//  License Version 1.0 (the "License"); you may not use this file
//  except in compliance with the License. You may obtain a copy
//  of the License at http://www.Inprise.com/IPL.html
//
//  Software distributed under the License is distributed on an
//  "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
//  or implied. See the License for the specific language governing
//  rights and limitations under the License.
//
//  The Original Code was created by Inprise Corporation
//  and its predecessors. Portions created by Inprise Corporation are
//  Copyright (C) Inprise Corporation.
//
//  All Rights Reserved.
//  Contributor(s): ______________________________________.
//
//
//____________________________________________________________
//
//
// 2002.10.28 Sean Leyne - Completed removal of obsolete "DGUX" port
// 2002.10.28 Sean Leyne - Completed removal of obsolete "SGI" port
//
//

#include "firebird.h"
#include <stdio.h>
#include "../common/common.h"
#include <stdarg.h>
#include "../jrd/ibase.h"
#include "../yvalve/gds_proto.h"
#include "../gpre/gpre.h"
#include "../gpre/pat.h"
#include "../gpre/cmp_proto.h"
#include "../gpre/gpre_proto.h"
#include "../gpre/lang_proto.h"
#include "../gpre/pat_proto.h"
#include "../common/prett_proto.h"
#include "../gpre/msc_proto.h"
#include "../common/utils_proto.h"

#ifdef HAVE_STRING_H
#include <string.h>
#endif

#ifdef NOT_USED_OR_REPLACED
static void align (int column);
#endif
static void asgn_from (const act*, const ref*);
static void asgn_to (const act*, const ref*);
static void asgn_to_proc (const ref*);
static void gen_any (const act*);
static void gen_at_end (const act*);
static void gen_based (const act*);
static void gen_blob_close (const act*);
static void gen_blob_end (const act*);
static void gen_blob_for (const act*);
static void gen_blob_open (const act*);
static void gen_blr (void*, SSHORT, const char*);
static void gen_clear_handles(); //(const act*);
#ifdef NOT_USED_OR_REPLACED
static void gen_compatibility_symbol(const TEXT*, const TEXT*, const TEXT*);
#endif
static void gen_compile (const act*);
static void gen_create_database (const act*);
static void gen_cursor_close(const gpre_req*);
static void gen_cursor_init (const act*);
static void gen_cursor_open (const act*, const gpre_req*);
static void gen_database();
static void gen_database_data(); // (const act*);
static void gen_database_decls(); // (const act*);
static void gen_ddl (const act*);
static void gen_drop_database (const act*);
static void gen_dyn_close (const act*);
static void gen_dyn_declare (const act*);
static void gen_dyn_describe(const act*, bool);
static void gen_dyn_execute (const act*);
static void gen_dyn_fetch (const act*);
static void gen_dyn_immediate (const act*);
static void gen_dyn_insert (const act*);
static void gen_dyn_open (const act*);
static void gen_dyn_prepare (const act*);
static void gen_emodify (const act*);
static void gen_estore (const act*);
static void gen_end_fetch ();
static void gen_endfor (const act*);
static void gen_erase (const act*);
static SSHORT     gen_event_block (const act*);
static void gen_event_init (const act*);
static void gen_event_wait (const act*);
static void gen_fetch (const act*);
static void gen_finish (const act*);
static void gen_for (const act*);
static void gen_function(const act*);
static void gen_get_or_put_slice(const act*, const ref*, bool);
static void gen_get_segment (const act*);
static void gen_loop (const act*);
static TEXT*      gen_name (SCHAR* const, const ref*, bool);
static void gen_on_error (const act*);
static void gen_procedure (const act*);
static void gen_put_segment (const act*);


// RRK_?: the following prototype is different from C stuff
static void gen_raw(const UCHAR*, req_t, int, int, int);

static void gen_ready (const act*);
static void gen_receive (const act*, const gpre_port*);
static void gen_release (const act*);
#ifdef NOT_USED_OR_REPLACED
static void gen_request (const gpre_req*);
#endif
static void gen_request_data (const gpre_req*);
static void gen_request_decls (const gpre_req*);
static void gen_return_value (const act*);
static void gen_routine (const act*);
static void gen_s_end (const act*);
static void gen_s_fetch (const act*);
static void gen_s_start (const act*);
static void gen_segment (const act*);
static void gen_select (const act*);
static void gen_send (const act*, const gpre_port*);
static void gen_slice (const act*);
static void gen_start (const act*, const gpre_port*);
static void gen_store (const act*);
static void gen_t_start (const act*);
static void gen_tpb_data(const tpb*);
static void gen_tpb_decls(const tpb*);
static void gen_trans (const act*);
static void gen_type (const act*);
static void gen_update (const act*);
static void gen_variable (const act*);
static void gen_whenever (const swe*);
static void make_array_declaration (const ref*);
static TEXT* make_name (TEXT* const, const gpre_sym*);
static void make_ok_test (const act*, const gpre_req*);
static void make_port (const gpre_port*);
static void make_ready (const gpre_dbb*, const TEXT*, const TEXT*, const gpre_req*);
static USHORT     next_label ();
static void printa(const TEXT*, const TEXT*, ...);
#ifdef NOT_USED_OR_REPLACED
static void printb(const TEXT*,  ...);
#endif
static const TEXT* request_trans (const act*, const gpre_req*);
static void status_and_stop (const act*);
static const TEXT* status_vector(); // (const act*);
static void t_start_auto (const gpre_req*, const TEXT*, const act*, bool);


static TEXT output_buffer[512];
static bool global_first_flag = false;
static adl* array_decl_list;

#if (defined AIX || defined AIX_PPC)
const char* const INCLUDE_ISC_FTN   = "       INCLUDE  '%s\' \n\n";
const char* const INCLUDE_FTN_FILE  = "gds.f";
const char* const DOUBLE_DCL        = "DOUBLE PRECISION";
const char* const I2CONST_1               = "%VAL(";
const char* const I2CONST_2               = ")";
const char* const I2_1                    = "";
const char* const I2_2                    = "";
const char* const VAL_1                   = "%VAL(";
const char* const VAL_2                   = ")";
const char* const REF_1                   = "%REF(";
const char* const REF_2                   = ")";
const char* const I4CONST_1               = "%VAL(";
const char* const I4CONST_2               = ")";
const char* const COMMENT                 = "C     ";
const char* const INLINE_COMMENT    = "!";
const char* const COMMA                   = ",";
#elif defined(__sun)
const char* const INCLUDE_ISC_FTN   = "       INCLUDE  '%s\' \n\n";
const char* const INCLUDE_FTN_FILE  = "gds.f";
const char* const DOUBLE_DCL        = "DOUBLE PRECISION";
const char* const I2CONST_1               = "";
const char* const I2CONST_2               = "";
const char* const I2_1                    = "";
const char* const I2_2                    = "";
const char* const VAL_1                   = "";
const char* const VAL_2                   = "";
const char* const REF_1                   = "";
const char* const REF_2                   = "";
const char* const I4CONST_1               = "";
const char* const I4CONST_2               = "";
const char* const COMMENT                 = "*     ";
const char* const INLINE_COMMENT    = "\n*                ";
const char* const COMMA                   = ",";
#elif defined(LINUX)
const char* const INCLUDE_ISC_FTN   = "       INCLUDE  '/usr/firebird/include/gds.f\' \n\n";
const char* const INCLUDE_FTN_FILE  = "gds.f";
const char* const DOUBLE_DCL        = "DOUBLE PRECISION";
const char* const I2CONST_1               = "";
const char* const I2CONST_2               = "";
const char* const I2_1                    = "";
const char* const I2_2                    = "";
const char* const VAL_1                   = "";
const char* const VAL_2                   = "";
const char* const REF_1                   = "";
const char* const REF_2                   = "";
const char* const I4CONST_1               = "";
const char* const I4CONST_2               = "";
const char* const COMMENT                 = "*     ";
const char* const INLINE_COMMENT    = "\n*                ";
const char* const COMMA                   = ",";
#elif defined(WIN_NT)
const char* const INCLUDE_ISC_FTN   = "       INCLUDE  \'%s\' \n\n";
const char* const INCLUDE_FTN_FILE  = "gds.f";
const char* const DOUBLE_DCL        = "DOUBLE PRECISION";
const char* const I2CONST_1               = "";
const char* const I2CONST_2               = "";
const char* const I2_1                    = "";
const char* const I2_2                    = "";
const char* const VAL_1                   = "";
const char* const VAL_2                   = "";
const char* const REF_1                   = "";
const char* const REF_2                   = "";
const char* const I4CONST_1               = "";
const char* const I4CONST_2               = "";
const char* const COMMENT                 = "*     ";
const char* const INLINE_COMMENT    = "\n*                ";
const char* const COMMA                   = ",";
#elif (defined FREEBSD || defined NETBSD)
const char* const INCLUDE_ISC_FTN   = "       INCLUDE  '/usr/firebird/include/gds.f\' \n\n";
const char* const INCLUDE_FTN_FILE  = "gds.f";
const char* const DOUBLE_DCL        = "DOUBLE PRECISION";
const char* const I2CONST_1               = "";
const char* const I2CONST_2               = "";
const char* const I2_1                    = "";
const char* const I2_2                    = "";
const char* const VAL_1                   = "";
const char* const VAL_2                   = "";
const char* const REF_1                   = "";
const char* const REF_2                   = "";
const char* const I4CONST_1               = "";
const char* const I4CONST_2               = "";
const char* const COMMENT                 = "*     ";
const char* const INLINE_COMMENT    = "\n*                ";
const char* const COMMA                   = ",";
#elif defined(DARWIN)
const char* const INCLUDE_ISC_FTN   = "       INCLUDE  '/Library/Frameworks/Firebird.framework/Headers/gds.f\' \n\n";
const char* const INCLUDE_FTN_FILE  = "Firebird/gds.f";
const char* const DOUBLE_DCL        = "DOUBLE PRECISION";
const char* const I2CONST_1               = "";
const char* const I2CONST_2               = "";
const char* const I2_1                    = "";
const char* const I2_2                    = "";
const char* const VAL_1                   = "";
const char* const VAL_2                   = "";
const char* const REF_1                   = "";
const char* const REF_2                   = "";
const char* const I4CONST_1               = "";
const char* const I4CONST_2               = "";
const char* const COMMENT                 = "*     ";
const char* const INLINE_COMMENT    = "\n*                ";
const char* const COMMA                   = ",";
#elif defined(HPUX)
const char* const INCLUDE_ISC_FTN   = "       INCLUDE  '%s\' \n\n";
const char* const INCLUDE_FTN_FILE  = "gds.f";
const char* const DOUBLE_DCL        = "DOUBLE PRECISION";
const char* const I2CONST_1               = "ISC_INT2(";
const char* const I2CONST_2               = ")";
const char* const I2_1                    = "ISC_INT2(";
const char* const I2_2                    = ")";
const char* const VAL_1                   = "";
const char* const VAL_2                   = "";
const char* const REF_1                   = "";
const char* const REF_2                   = "";
const char* const I4CONST_1               = "";
const char* const I4CONST_2               = "";
const char* const COMMENT                 = "*     ";
const char* const INLINE_COMMENT    = "!";
const char* const COMMA                   = ",";
#endif

const char* const COLUMN                  = "      ";
const char* const INDENT                  = "   ";
const char* const CONTINUE                = "     +   ";
const char* const COLUMN_INDENT           = "          ";

const char* const ISC_EMBED_DSQL_CLOSE                = "isc_embed_dsql_close";
const char* const ISC_EMBED_DSQL_DECLARE        = "isc_embed_dsql_declare";
const char* const ISC_EMBED_DSQL_DESCRIBE       = "isc_embed_dsql_describe";
const char* const ISC_EMBED_DSQL_DESCRIBE_BIND  = "isc_embed_dsql_describe_bind";
const char* const ISC_EMBED_DSQL_EXECUTE        = "isc_embed_dsql_execute";
const char* const ISC_EMBED_DSQL_EXECUTE2       = "isc_embed_dsql_execute2";
const char* const ISC_EMBED_DSQL_EXECUTE_IMMEDIATE    = "isc_embed_dsql_execute_immed";
const char* const ISC_EMBED_DSQL_EXECUTE_IMMEDIATE2   = "isc_embed_dsql_execute_immed2";
const char* const ISC_EMBED_DSQL_FETCH          = "isc_embed_dsql_fetch";
const char* const ISC_EMBED_DSQL_INSERT         = "isc_embed_dsql_insert";
const char* const ISC_EMBED_DSQL_OPEN           = "isc_embed_dsql_open";
const char* const ISC_EMBED_DSQL_OPEN2          = "isc_embed_dsql_open2";
const char* const ISC_EMBED_DSQL_PREPARE  = "isc_embed_dsql_prepare";
const char* const ISC_DSQL_ALLOCATE             = "isc_dsql_alloc_statement2";
const char* const ISC_DSQL_EXECUTE              = "isc_dsql_execute_m";
const char* const ISC_DSQL_FREE                       = "isc_dsql_free_statement";
const char* const ISC_DSQL_SET_CURSOR           = "isc_dsql_set_cursor_name";

const char* const ISC_EVENT_WAIT                = "ISC_EVENT_WAIT";
const char* const ISC_EVENT_COUNTS              = "ISC_EVENT_COUNTS";

const char* const DSQL_I2CONST_1                = I2CONST_1;
const char* const DSQL_I2CONST_2                = I2CONST_2;

const char* const NULL_SQLDA  = "0";


//____________________________________________________________
//
//

void FTN_action(const act* action, int /*column*/)
{
      if (action->act_flags & ACT_break)
            global_first_flag = false;

      switch (action->act_type)
      {
      case ACT_alter_database:
      case ACT_alter_domain:
      case ACT_alter_table:
      case ACT_alter_index:
      case ACT_create_domain:
      case ACT_create_generator:
      case ACT_create_index:
      case ACT_create_shadow:
      case ACT_create_table:
      case ACT_create_view:
      case ACT_declare_filter:
      case ACT_declare_udf:
      case ACT_drop_domain:
      case ACT_drop_filter:
      case ACT_drop_index:
      case ACT_drop_shadow:
      case ACT_drop_table:
      case ACT_drop_udf:
      case ACT_statistics:
      case ACT_drop_view:
            gen_ddl(action);
            break;
      case ACT_any:
            gen_any(action);
            return;
      case ACT_at_end:
            gen_at_end(action);
            return;
      case ACT_commit:
            gen_trans(action);
            break;
      case ACT_commit_retain_context:
            gen_trans(action);
            break;
      case ACT_basedon:
            gen_based(action);
            return;
      case ACT_b_declare:
            gen_database();
            return;
      case ACT_blob_cancel:
            gen_blob_close(action);
            return;
      case ACT_blob_close:
            gen_blob_close(action);
            break;
      case ACT_blob_create:
            gen_blob_open(action);
            break;
      case ACT_blob_for:
            gen_blob_for(action);
            return;
      case ACT_blob_handle:
            gen_segment(action);
            return;
      case ACT_blob_open:
            gen_blob_open(action);
            break;
      case ACT_clear_handles:
            gen_clear_handles(); //(action);
            break;
      case ACT_create_database:
            gen_create_database(action);
            break;
      case ACT_cursor:
            gen_cursor_init(action);
            return;
      case ACT_database:
            gen_database();
            return;
      case ACT_disconnect:
            gen_finish(action);
            break;
      case ACT_drop_database:
            gen_drop_database(action);
            break;
      case ACT_dyn_close:
            gen_dyn_close(action);
            break;
      case ACT_dyn_cursor:
            gen_dyn_declare(action);
            break;
      case ACT_dyn_describe:
            gen_dyn_describe(action, false);
            break;
      case ACT_dyn_describe_input:
            gen_dyn_describe(action, true);
            break;
      case ACT_dyn_execute:
            gen_dyn_execute(action);
            break;
      case ACT_dyn_fetch:
            gen_dyn_fetch(action);
            break;
      case ACT_dyn_grant:
            gen_ddl(action);
            break;
      case ACT_dyn_immediate:
            gen_dyn_immediate(action);
            break;
      case ACT_dyn_insert:
            gen_dyn_insert(action);
            break;
      case ACT_dyn_open:
            gen_dyn_open(action);
            break;
      case ACT_dyn_prepare:
            gen_dyn_prepare(action);
            break;
      case ACT_dyn_revoke:
            gen_ddl(action);
            break;
      case ACT_close:
            gen_s_end(action);
            break;
      case ACT_endblob:
            gen_blob_end(action);
            return;
      case ACT_enderror:
            printa(COLUMN, "END IF");
            return;
      case ACT_endfor:
            gen_endfor(action);
            break;
      case ACT_endmodify:
            gen_emodify(action);
            break;
      case ACT_endstore:
            gen_estore(action);
            break;
      case ACT_erase:
            gen_erase(action);
            return;
      case ACT_event_init:
            gen_event_init(action);
            break;
      case ACT_event_wait:
            gen_event_wait(action);
            break;
      case ACT_fetch:
            gen_fetch(action);
            break;
      case ACT_finish:
            gen_finish(action);
            break;
      case ACT_for:
            gen_for(action);
            return;
      case ACT_function:
            gen_function(action);
            return;
      case ACT_get_segment:
            gen_get_segment(action);
            break;
      case ACT_get_slice:
            gen_slice(action);
            break;
      case ACT_hctef:
            gen_end_fetch();
            return;
      case ACT_insert:
            gen_s_start(action);
            break;
      case ACT_loop:
            gen_loop(action);
            break;
      case ACT_open:
            gen_s_start(action);
            break;
      case ACT_on_error:
            gen_on_error(action);
            return;
      case ACT_procedure:
            gen_procedure(action);
            return;
      case ACT_put_segment:
            gen_put_segment(action);
            break;
      case ACT_put_slice:
            gen_slice(action);
            break;
      case ACT_ready:
            gen_ready(action);
            return;
      case ACT_release:
            gen_release(action);
            break;
      case ACT_rfinish:
            gen_finish(action);
            return;
      case ACT_prepare:
            gen_trans(action);
            break;
      case ACT_rollback:
            gen_trans(action);
            break;
      case ACT_rollback_retain_context:
            gen_trans(action);
            break;
      case ACT_routine:
            gen_routine(action);
            return;
      case ACT_s_end:
            gen_s_end(action);
            return;
      case ACT_s_fetch:
            gen_s_fetch(action);
            break;
      case ACT_s_start:
            gen_s_start(action);
            break;
      case ACT_select:
            gen_select(action);
            break;
      case ACT_segment_length:
            gen_segment(action);
            return;
      case ACT_segment:
            gen_segment(action);
            return;
      case ACT_sql_dialect:
            gpreGlob.sw_sql_dialect = ((set_dialect*) action->act_object)->sdt_dialect;
            return;
      case ACT_start:
            gen_t_start(action);
            break;
      case ACT_store:
            gen_store(action);
            break;
      case ACT_store2:
            gen_return_value(action);
            break;
      case ACT_type_number:
            gen_type(action);
            return;
      case ACT_update:
            gen_update(action);
            break;
      case ACT_variable:
            gen_variable(action);
            return;
      default:
            return;
      }

      if (action->act_flags & ACT_sql)
            gen_whenever(action->act_whenever);
}


//____________________________________________________________
//
//       Create a block data module at the
//       head of a preprocessed fortran file
//       containing the initializations for
//       all databases not declared as extern
//

void FTN_fini()
{
      if (!gpreGlob.global_db_count)
            return;

      fprintf(gpreGlob.out_file, "\n");
      printa(COLUMN, "BLOCK DATA");

      const dbd* db_list = gpreGlob.global_db_list;
      for (const dbd* const end = gpreGlob.global_db_list + gpreGlob.global_db_count;
             db_list < end; ++db_list)
      {
            const TEXT* name = db_list->dbd_name;
            fprintf(gpreGlob.out_file, "%sINTEGER*4  %s                %s{ database handle }\n",
                           COLUMN, name, INLINE_COMMENT);
            fprintf(gpreGlob.out_file, "%sCOMMON /%s/ %s\n", COLUMN, name, name);
            fprintf(gpreGlob.out_file, "%sDATA %s /0/             %s{ init database handle }\n",
                           COLUMN, name, INLINE_COMMENT);
      }
      printa(COLUMN, "END");
}


//____________________________________________________________
//
//          Print a statment, breaking it into
//       reasonable 72 character hunks.
//

void FTN_print_buffer( TEXT* output_bufferL)
{
      TEXT s[73];
      TEXT* p = s;

      for (const TEXT* q = output_bufferL; *q; q++)
      {
            *p++ = *q;
#ifdef __sun
            if (q[0] == '\n' && q[1] == '\0')
            {
                  *p = 0;
                  fprintf(gpreGlob.out_file, "%s", s);
                  p = s;
            }
#endif
            if ((p - s) > 71)
            {
                  for (p--; (*p != ',') && (*p != ' '); p--)
                  {
                        if ((p - s) < 10)
                        {
                              p += 51;
                              q += 50;
                              *p-- = 0;
                              TEXT err[128];
                              sprintf(err, "Output line overflow: %s", s);
                              CPR_error(err);
                              break;
                        }
                        q--;
                  }

                  *++p = 0;
                  fprintf(gpreGlob.out_file, "%s\n", s);
                  strcpy(s, CONTINUE);
                  for (p = s; *p; p++);
            }
      }
      *p = 0;
      fprintf(gpreGlob.out_file, "%s", s);
      output_bufferL[0] = 0;
}


// RRK_?: copy align from c_cxx


//____________________________________________________________
//
//          Build an assignment from a host language variable to
//          a port variable.
//

static void asgn_from(const act* action, const ref* reference)
{
      SCHAR name[MAX_REF_SIZE], variable[MAX_REF_SIZE], temp[MAX_REF_SIZE];

      for (; reference; reference = reference->ref_next)
      {
            const gpre_fld* field = reference->ref_field;
            if (field->fld_array_info)
                  if (!(reference->ref_flags & REF_array_elem))
                  {
                        printa(COLUMN, "CALL isc_qtoq (isc_blob_null, %s)", gen_name(name, reference, true));
                        gen_get_or_put_slice(action, reference, false);
                        continue;
                  }

            if (!reference->ref_source && !reference->ref_value)
                  continue;
            gen_name(variable, reference, true);

            const TEXT* value;
            if (reference->ref_source)
                  value = gen_name(temp, reference->ref_source, true);
            else
                  value = reference->ref_value;
            if (reference->ref_value && (reference->ref_flags & REF_array_elem))
                  field = field->fld_array;
            if (field->fld_dtype == dtype_blob || field->fld_dtype == dtype_quad ||
                  field->fld_dtype == dtype_date)
            {
                  sprintf(output_buffer, "%sCALL isc_qtoq (%s, %s)\n", COLUMN, value, variable);
            }
            else if (!reference->ref_master || (reference->ref_flags & REF_literal))
            {
                  sprintf(output_buffer, "%s%s = %s\n", COLUMN, variable, value);
            }
            else
            {
                  sprintf(output_buffer, "%sIF (%s .LT. 0) THEN\n", COLUMN, value);
                  FTN_print_buffer(output_buffer);
                  sprintf(output_buffer, "%s%s = -1\n", COLUMN_INDENT, variable);
                  FTN_print_buffer(output_buffer);
                  sprintf(output_buffer, "%sELSE\n", COLUMN);
                  FTN_print_buffer(output_buffer);
                  sprintf(output_buffer, "%s%s = 0\n", COLUMN_INDENT, variable);
                  FTN_print_buffer(output_buffer);
                  sprintf(output_buffer, "%sEND IF\n", COLUMN);
            }
            FTN_print_buffer(output_buffer);
      }
}


//____________________________________________________________
//
//          Build an assignment to a host language variable from
//          a port variable.
//

static void asgn_to(const act* action, const ref* reference)
{
      ref* source = reference->ref_friend;
      const gpre_fld* field = source->ref_field;
      if (field->fld_array_info)
      {
            source->ref_value = reference->ref_value;
            gen_get_or_put_slice(action, source, true);
            return;
      }

    SCHAR s[MAX_REF_SIZE];
      gen_name(s, source, true);

      if (field->fld_dtype == dtype_blob || field->fld_dtype == dtype_quad ||
            field->fld_dtype == dtype_date)
      {
            sprintf(output_buffer, "%sCALL isc_qtoq (%s, %s)\n", COLUMN, s, reference->ref_value);
      }
      else
            sprintf(output_buffer, "%s%s = %s\n", COLUMN, reference->ref_value, s);
      FTN_print_buffer(output_buffer);

      // Pick up NULL value if one is there

      if (reference = reference->ref_null)
      {
            sprintf(output_buffer, "%s%s = %s\n",
                        COLUMN, reference->ref_value, gen_name(s, reference, true));
            FTN_print_buffer(output_buffer);
      }
}


//____________________________________________________________
//
//          Build an assignment to a host language variable from
//          a port variable.
//

static void asgn_to_proc( const ref* reference)
{
      SCHAR s[MAX_REF_SIZE];

      for (; reference; reference = reference->ref_next)
      {
            if (!reference->ref_value)
                  continue;
            const gpre_fld* field = reference->ref_field;
            gen_name(s, reference, true);
            if (field->fld_dtype == dtype_blob || field->fld_dtype == dtype_quad ||
                  field->fld_dtype == dtype_date)
            {
                  sprintf(output_buffer, "%sCALL isc_qtoq (%s, %s)\n", COLUMN, s, reference->ref_value);
            }
            else
                  sprintf(output_buffer, "%s%s = %s\n", COLUMN, reference->ref_value, s);
            FTN_print_buffer(output_buffer);
      }
}


//____________________________________________________________
//
//          Generate code for AT END clause of FETCH.
//

static void gen_at_end(const act* action)
{
      SCHAR s[MAX_REF_SIZE];

      const gpre_req* request = action->act_request;
      printa(COLUMN, "IF (%s .EQ. 0) THEN", gen_name(s, request->req_eof, true));
      fprintf(gpreGlob.out_file, COLUMN);
}


//____________________________________________________________
//
//          Substitute for a BASED ON <field name> clause.
//

static void gen_based(const act* action)
{
      USHORT datatype;
      SLONG length = 0;

      bas* based_on = (bas*) action->act_object;
      const gpre_fld* field = based_on->bas_field;

      if (based_on->bas_flags & BAS_segment)
      {
            datatype = dtype_text;
            if (!(length = field->fld_seg_length))
                  length = 256;
      }
      else if (field->fld_array_info)
            datatype = field->fld_array_info->ary_dtype;
      else
            datatype = field->fld_dtype;

      switch (datatype)
      {
      case dtype_short:
            fprintf(gpreGlob.out_file, "%sINTEGER*2%s", COLUMN, COLUMN);
            break;

      case dtype_long:
            fprintf(gpreGlob.out_file, "%sINTEGER*4%s", COLUMN, COLUMN);
            break;

      case dtype_date:
      case dtype_blob:
      case dtype_quad:
            fprintf(gpreGlob.out_file, "%sINTEGER*4%s", COLUMN, COLUMN);
            break;

      case dtype_text:
            fprintf(gpreGlob.out_file, "%sCHARACTER*%ld%s", COLUMN,
                        (based_on->bas_flags & BAS_segment) ? length : ((field->fld_array_info) ?
                              field->fld_array->fld_length : field->fld_length),
                        COLUMN);
            break;

      case dtype_real:
            fprintf(gpreGlob.out_file, "%sREAL%s", COLUMN, COLUMN);
            break;

      case dtype_double:
            fprintf(gpreGlob.out_file, "%s%s%s", COLUMN, DOUBLE_DCL, COLUMN);
            break;

      default:
          {
            TEXT s[64];
                  sprintf(s, "datatype %d unknown\n", field->fld_dtype);
                  CPR_error(s);
                  return;
            }
      }

      // print the first variable, then precede the rest with commas

      bool first = true;

      while (based_on->bas_variables)
      {
            const TEXT* variable = (const TEXT*) MSC_pop(&based_on->bas_variables);
            if (!first)
                  fprintf(gpreGlob.out_file, ",\n%s", CONTINUE);
            fprintf(gpreGlob.out_file, "%s", variable);
            first = false;
            if (field->fld_array_info && !(based_on->bas_flags & BAS_segment))
            {
                  // Print out the dimension part of the declaration
                  fprintf(gpreGlob.out_file, "(");

                  for (dim* dimension = field->fld_array_info->ary_dimension; dimension;
                         dimension = dimension->dim_next)
                  {
                        if (dimension->dim_lower != 1)
                              fprintf(gpreGlob.out_file, "%"SLONGFORMAT":", dimension->dim_lower);

                        fprintf(gpreGlob.out_file, "%"SLONGFORMAT, dimension->dim_upper);
                        if (dimension->dim_next)
                              fprintf(gpreGlob.out_file, ", ");
                  }

                  if (field->fld_dtype == dtype_quad || field->fld_dtype == dtype_date)
                  {
                        fprintf(gpreGlob.out_file, ",2");
                  }

                  fprintf(gpreGlob.out_file, ")");
            }

            else if (field->fld_dtype == dtype_blob || field->fld_dtype == dtype_quad ||
                  field->fld_dtype == dtype_date)
            {
                  fprintf(gpreGlob.out_file, "(2)");
            }
      }

      fprintf(gpreGlob.out_file, "\n");
}


//____________________________________________________________
//
//          Make a blob FOR loop.
//

static void gen_blob_close(const act* action)
{
      blb* blob;

      if (action->act_flags & ACT_sql)
      {
            gen_cursor_close(action->act_request);
            blob = (blb*) action->act_request->req_blobs;
      }
      else
            blob = (blb*) action->act_object;

      const TEXT* command = (action->act_type == ACT_blob_cancel) ? "CANCEL" : "CLOSE";
      printa(COLUMN, "CALL ISC_%s_BLOB (%s, isc_%d)", command, status_vector(), blob->blb_ident);

      if (action->act_flags & ACT_sql)
      {
            printa(COLUMN, "END IF");
            printa(COLUMN, "END IF");
      }

      status_and_stop(action);
}


//____________________________________________________________
//
//          End a blob FOR loop.
//

static void gen_blob_end(const act* action)
{
      blb* blob = (blb*) action->act_object;
      printa(COLUMN, "%sGOTO %d", INDENT, blob->blb_top_label);
      printa("", "%-6dCONTINUE", blob->blb_btm_label);
      if (action->act_error)
            printa(COLUMN, "CALL ISC_CANCEL_BLOB (ISC_STATUS2, isc_%d)", blob->blb_ident);
      else
            printa(COLUMN, "CALL ISC_CANCEL_BLOB (%s, isc_%d)", status_vector(), blob->blb_ident);
}


//____________________________________________________________
//
//          Make a blob FOR loop.
//

static void gen_blob_for(const act* action)
{
      blb* blob = (blb*) action->act_object;
      blob->blb_top_label = next_label();
      blob->blb_btm_label = next_label();
      gen_blob_open(action);
      if (action->act_error)
            printa(COLUMN, "IF (ISC_STATUS(2) .NE. 0) GOTO %d\n", blob->blb_btm_label);
      printa("", "%-6dCONTINUE", blob->blb_top_label);
      gen_get_segment(action);
      printa(COLUMN, "IF (ISC_STATUS(2) .NE. 0 .AND. ISC_STATUS(2) .NE. ISC_SEGMENT) THEN");
      printa(COLUMN, "%s GOTO %d", INDENT, blob->blb_btm_label);
      printa(COLUMN, "END IF");
}


//____________________________________________________________
//
//          Generate the call to open (or create) a blob.
//

static void gen_blob_open(const act* action)
{
      TEXT s[MAX_REF_SIZE];
      const TEXT* pattern1 =
            "CALL ISC_%IFCREATE%ELOPEN%EN_BLOB2 (%V1, %RF%DH%RE, %RF%RT%RE, %RF%BH%RE, %RF%FR%RE, %N1, %I1)\n";
      const TEXT* pattern2 =
            "CALL ISC_%IFCREATE%ELOPEN%EN_BLOB2 (%V1, %RF%DH%RE, %RF%RT%RE, %RF%BH%RE, %RF%FR%RE, 0, 0)\n";

      blb* blob;
      const ref* reference;
      if (action->act_flags & ACT_sql)
      {
            if (gpreGlob.sw_auto)
            {
                  t_start_auto(action->act_request, status_vector(), action, true);
                  printa(COLUMN, "if (%s .ne. 0) then", request_trans(action, action->act_request));
            }

            gen_cursor_open(action, action->act_request);
            blob = (blb*) action->act_request->req_blobs;
            reference = ((open_cursor*) action->act_object)->opn_using;
            gen_name(s, reference, true);
      }
      else
      {
            blob = (blb*) action->act_object;
            reference = blob->blb_reference;
      }

      PAT args;
      args.pat_condition = (action->act_type == ACT_blob_create); // open or create blob
      args.pat_vector1 = status_vector();
      args.pat_database = blob->blb_request->req_database;  // database handle
      args.pat_request = blob->blb_request;     // transaction handle
      args.pat_blob = blob;         // blob handle
      args.pat_reference = reference;     // blob identifier
      args.pat_ident1 = blob->blb_bpb_ident;

      if ((action->act_flags & ACT_sql) && action->act_type == ACT_blob_open) {
            printa(COLUMN, "CALL isc_qtoq (%s, %s)", reference->ref_value, s);
      }

    const USHORT column = 6;

      if (args.pat_value1 = blob->blb_bpb_length)
            PATTERN_expand(column, pattern1, &args);
      else
            PATTERN_expand(column, pattern2, &args);

      if (action->act_flags & ACT_sql)
      {
            printa(COLUMN, "END IF");
            printa(COLUMN, "END IF");
            printa(COLUMN, "END IF");
            if (gpreGlob.sw_auto)
                  printa(COLUMN, "END IF");
            status_and_stop(action);
            if (action->act_type == ACT_blob_create)
            {
                  printa(COLUMN, "IF (SQLCODE .EQ. 0) THEN");
                  printa(COLUMN_INDENT, "CALL isc_qtoq (%s, %s)", s, reference->ref_value);
                  printa(COLUMN, "ENDIF");
            }
      }
      else
            status_and_stop(action);
}


//____________________________________________________________
//
//          Callback routine for BLR pretty printer.
//

static void gen_blr(void* /*user_arg*/, SSHORT /*offset*/, const char* string)
{
      const int c_len = strlen(COMMENT);
      const int len = strlen(string);
      int from = 0;
      int to = 80 - c_len;

      while (from < len)
      {
            if (to < len)
            {
                  char buffer[81];
                  strncpy(buffer, string + from, 80 - c_len);
                  buffer[80 - c_len] = 0;
                  fprintf(gpreGlob.out_file, "%s%s\n", COMMENT, buffer);
            }
            else
                  fprintf(gpreGlob.out_file, "%s%s\n", COMMENT, string + from);
            from = to;
            to = to + 80 - c_len;
      }
}


//____________________________________________________________
//
//          Generate text to compile a request.
//

static void gen_compile(const act* action)
{
      const gpre_req* request = action->act_request;
      const gpre_dbb* db = request->req_database;
      const gpre_sym* symbol = db->dbb_name;

      // generate automatic ready if appropriate

      if (gpreGlob.sw_auto)
            t_start_auto(request, status_vector(), action, true);

      // always generate a compile, a test for the success of the compile,
      // and an end to the 'if not compiled test

      // generate an 'if not compiled'

      if (gpreGlob.sw_auto && (action->act_error || (action->act_flags & ACT_sql)))
            printa(COLUMN, "IF (%s .EQ. 0 .AND. %s .NE. 0) THEN",
                     request->req_handle, request_trans(action, request));
      else
            printa(COLUMN, "IF (%s .EQ. 0) THEN", request->req_handle);

      sprintf(output_buffer, "%sCALL ISC_COMPILE_REQUEST%s (%s, %s, %s, %s%d%s, %sisc_%d%s)\n",
                  COLUMN, (request->req_flags & REQ_exp_hand) ? "" : "2",
                  status_vector(), symbol->sym_string, request->req_handle,
                  I2CONST_1, request->req_length, I2CONST_2, REF_1,
                  request->req_ident, REF_2);
      FTN_print_buffer(output_buffer);
      status_and_stop(action);
      printa(COLUMN, "END IF");

      // If blobs are present, zero out all of the blob handles.  After this
      // point, the handles are the user's responsibility

      for (const blb* blob = request->req_blobs; blob; blob = blob->blb_next)
      {
            sprintf(output_buffer, "%sisc_%d = 0\n", COLUMN, blob->blb_ident);
            FTN_print_buffer(output_buffer);
      }
}




//____________________________________________________________
//
//          Generate a call to create a database.
//

static void gen_create_database(const act* action)
{
      TEXT s1[32], s2[32];

      const gpre_req* request = ((mdbb*) action->act_object)->mdbb_dpb_request;
      const gpre_dbb* db = (gpre_dbb*) request->req_database;
      sprintf(s1, "isc_%dl", request->req_ident);

      if (request->req_flags & REQ_extend_dpb)
      {
            sprintf(s2, "isc_%dp", request->req_ident);
            if (request->req_length)
            {
                  sprintf(output_buffer, "%s%s = isc_%d\n", COLUMN, s2, request->req_ident);
                  FTN_print_buffer(output_buffer);
            }
            if (db->dbb_r_user)
            {
                  sprintf(output_buffer,
                              "%sCALL ISC_MODIFY_DPB (%s, %s, isc_dpb_user_name, %s, %sLEN(%s)%s)\n",
                              COLUMN,
                              s2, s1, db->dbb_r_user,
                              I2CONST_1, db->dbb_r_user, I2CONST_2);
                  FTN_print_buffer(output_buffer);
            }
            if (db->dbb_r_password)
            {
                  sprintf(output_buffer,
                              "%sCALL ISC_MODIFY_DPB (%s, %s, isc_dpb_password, %s, %sLEN(%s)%s)\n",
                              COLUMN,
                              s2, s1, db->dbb_r_password,
                              I2CONST_1, db->dbb_r_password, I2CONST_2);
                  FTN_print_buffer(output_buffer);
            }

            // SQL Role supports GPRE/Fortran
            if (db->dbb_r_sql_role)
            {
                  sprintf(output_buffer,
                              "%sCALL ISC_MODIFY_DPB (%s, %s, isc_dpb_sql_role_name, %s, %sLEN(%s)%s)\n",
                              COLUMN,
                              s2, s1, db->dbb_r_sql_role,
                              I2CONST_1, db->dbb_r_sql_role, I2CONST_2);
                  FTN_print_buffer(output_buffer);
            }

            if (db->dbb_r_lc_messages)
            {
                  sprintf(output_buffer,
                              "%sCALL ISC_MODIFY_DPB (%s, %s, isc_dpb_lc_messages, %s, %sLEN(%s)%s)\n",
                              COLUMN,
                              s2, s1, db->dbb_r_lc_messages,
                              I2CONST_1, db->dbb_r_lc_messages, I2CONST_2);
                  FTN_print_buffer(output_buffer);
            }
            if (db->dbb_r_lc_ctype)
            {
                  sprintf(output_buffer,
                              "%sCALL ISC_MODIFY_DPB (%s, %s, isc_dpb_lc_type, %s, %sLEN(%s)%s)\n",
                              COLUMN,
                              s2, s1, db->dbb_r_lc_ctype,
                              I2CONST_1, db->dbb_r_lc_ctype, I2CONST_2);
                  FTN_print_buffer(output_buffer);
            }
      }
      else
            sprintf(s2, "isc_%d", request->req_ident);

      if (request->req_length || request->req_flags & REQ_extend_dpb)
            sprintf(output_buffer,
                        "%sCALL ISC_CREATE_DATABASE (%s, %s%d%s, %s'%s'%s, %s, %s%s%s, %s, 0)\n",
                        COLUMN,
                        status_vector(),
                        I2CONST_1, strlen(db->dbb_filename), I2CONST_2,
                        REF_1, db->dbb_filename, REF_2,
                        db->dbb_name->sym_string, I2CONST_1, s1, I2CONST_2, s2);
      else
            sprintf(output_buffer, "%sCALL ISC_CREATE_DATABASE (%s, %s%d%s, %s'%s'%s, %s, %s0%s, 0, 0)\n",
                        COLUMN,
                        status_vector(),
                        I2CONST_1, strlen(db->dbb_filename), I2CONST_2,
                        REF_1, db->dbb_filename, REF_2,
                        db->dbb_name->sym_string, I2CONST_1, I2CONST_2);
      FTN_print_buffer(output_buffer);
      if (request && request->req_flags & REQ_extend_dpb)
      {
            if (request->req_length)
            {
                  sprintf(output_buffer, "%sif (%s != isc_%d)\n", COLUMN, s2, request->req_ident);
                  FTN_print_buffer(output_buffer);
            }
            sprintf(output_buffer, "%sCALL ISC_FREE (%s)\n", COLUMN, s2);
            FTN_print_buffer(output_buffer);

            // reset the length of the dpb

            sprintf(output_buffer, "%s%s = %d\n", COLUMN, s1, request->req_length);
            FTN_print_buffer(output_buffer);
      }

      const bool save_sw_auto = gpreGlob.sw_auto;
      gpreGlob.sw_auto = true;
      printa(COLUMN, "IF (isc_status(2) .eq. 0) THEN");
      gen_ddl(action);
      printa(COLUMN, "END IF");
      gpreGlob.sw_auto = save_sw_auto;
      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate substitution text for END_STREAM.
//

static void gen_cursor_close(const gpre_req* request)
{
      printa(COLUMN, "IF (isc_%ds .NE. 0) THEN", request->req_ident);
      printa(COLUMN, "CALL %s (%s, isc_%ds, %s1%s)",
               ISC_DSQL_FREE,
               status_vector(),
               request->req_ident, DSQL_I2CONST_1, DSQL_I2CONST_2);
      printa(COLUMN, "IF (isc_status(2) .EQ. 0) THEN");
}


//____________________________________________________________
//
//          Generate text to initialize a cursor.
//

static void gen_cursor_init(const act* action)
{
      // If blobs are present, zero out all of the blob handles.  After this
      // point, the handles are the user's responsibility

      if (action->act_request->req_flags & (REQ_sql_blob_open | REQ_sql_blob_create))
      {
            printa(COLUMN, "isc_%d = 0", action->act_request->req_blobs->blb_ident);
      }
}


//____________________________________________________________
//
//          Generate text to open an embedded SQL cursor.
//

static void gen_cursor_open(const act* action, const gpre_req* request)
{
      TEXT s[MAX_CURSOR_SIZE];

      if (action->act_type != ACT_open)
      {
            if (gpreGlob.sw_auto)
                  printa(COLUMN, "IF (isc_%ds .EQ. 0 .AND. %s .NE. 0) THEN",
                           request->req_ident,
                           request->req_database->dbb_name->sym_string);
            else
                  printa(COLUMN, "IF (isc_%ds .EQ. 0) THEN", request->req_ident);
      }
      else
      {
            if (gpreGlob.sw_auto)
                  printa(COLUMN, "IF (isc_%ds .EQ. 0 .AND. %s .NE. 0 .AND. %s .NE. 0) THEN",
                           request->req_ident, request->req_handle,
                           request->req_database->dbb_name->sym_string);
            else
                  printa(COLUMN, "IF (isc_%ds .EQ. 0 .AND. %s .NE. 0) THEN",
                           request->req_ident, request->req_handle);
      }

      printa(COLUMN, "CALL %s (%s, %s, isc_%ds)",
               ISC_DSQL_ALLOCATE,
               status_vector(),
               request->req_database->dbb_name->sym_string, request->req_ident);
      printa(COLUMN, "END IF");

      if (gpreGlob.sw_auto)
            printa(COLUMN, "IF (isc_%ds .NE. 0 .AND. %s .NE. 0) THEN",
                     request->req_ident, request_trans(action, request));
      else
            printa(COLUMN, "IF (isc_%ds .NE. 0) THEN", request->req_ident);
      printa(COLUMN, "CALL %s (%s, isc_%ds, %s, %s0%s)",
               ISC_DSQL_SET_CURSOR,
               status_vector(),
               request->req_ident,
               make_name(s, ((open_cursor*) action->act_object)->opn_cursor),
               DSQL_I2CONST_1, DSQL_I2CONST_2);
      printa(COLUMN, "IF (isc_status(2) .EQ. 0) THEN");
      printa(COLUMN, "CALL %s (%s, %s, isc_%ds, %s0%s, 0, %s-1%s, %s0%s, 0)",
               ISC_DSQL_EXECUTE,
               status_vector(),
               request_trans(action, request),
               request->req_ident,
               DSQL_I2CONST_1, DSQL_I2CONST_2,
               DSQL_I2CONST_1, DSQL_I2CONST_2, DSQL_I2CONST_1, DSQL_I2CONST_2);
      printa(COLUMN, "IF (isc_status(2) .EQ. 0) THEN");
}


//____________________________________________________________
//
//          Generate insertion text for the database statement.
//

static void gen_database()
{
      if (global_first_flag)
            return;

      global_first_flag = true;

      sprintf(output_buffer, "\n%s      **** GDS Preprocessor Definitions ****\n\n", COMMENT);
      FTN_print_buffer(output_buffer);

      gen_database_decls(); //(action);
      gen_database_data(); //(action);

      printa(COMMENT, "**** end of GPRE definitions ****\n");
}


//____________________________________________________________
//
//          Generate insertion text for global DATA statements.
//

static void gen_database_data() //(const act* action)
{
      Firebird::PathName include_buffer;

      include_buffer = fb_utils::getPrefix(fb_utils::FB_DIR_INC, INCLUDE_FTN_FILE);
      sprintf(output_buffer, INCLUDE_ISC_FTN, include_buffer.c_str());

      FTN_print_buffer(output_buffer);

      bool any_extern = false;
      for (const gpre_dbb* db = gpreGlob.isc_databases; db; db = db->dbb_next)
      {
#ifndef FTN_BLK_DATA
            if (db->dbb_scope != DBB_EXTERN)
                  fprintf(gpreGlob.out_file, "%sDATA %s /0/               %s{ init database handle }\n",
                              COLUMN, db->dbb_name->sym_string, INLINE_COMMENT);
            else
                  any_extern = true;
#endif
            for (const tpb* tpb_iterator = db->dbb_tpbs;
                  tpb_iterator;
                  tpb_iterator = tpb_iterator->tpb_dbb_next)
            {
                  gen_tpb_data(tpb_iterator);
            }
      }

      fprintf(gpreGlob.out_file, "%sDATA ISC_NULL /0/            %s{ init null vector }\n",
                     COLUMN, INLINE_COMMENT);
      fprintf(gpreGlob.out_file, "%sDATA ISC_BLOB_NULL /0,0/     %s{ init null blob }\n",
                     COLUMN, INLINE_COMMENT);
#ifndef FTN_BLK_DATA
      if (!any_extern)
            fprintf(gpreGlob.out_file, "%sDATA GDS__TRANS /0/           %s{ init trans handle }\n",
                           COLUMN, INLINE_COMMENT);
#endif

      for (const gpre_req* request = gpreGlob.requests; request; request = request->req_next)
            gen_request_data(request);
}


//____________________________________________________________
//
//          Generate insertion text for global
//       data declarations.
//

static void gen_database_decls() //const act* action)
{
      fprintf(gpreGlob.out_file, "%sINTEGER*4  ISC_BLOB_NULL(2)  %s{ null blob handle }\n",
                  COLUMN, INLINE_COMMENT);
      fprintf(gpreGlob.out_file, "%sINTEGER*4  GDS__TRANS         %s{ default transaction handle }\n",
                  COLUMN, INLINE_COMMENT);
      fprintf(gpreGlob.out_file, "%sINTEGER*4  ISC_STATUS(20)    %s{ status vector }\n",
                  COLUMN, INLINE_COMMENT);
      fprintf(gpreGlob.out_file, "%sINTEGER*4  ISC_STATUS2(20)   %s{ status vector }\n",
                  COLUMN, INLINE_COMMENT);

      // added for 3.3 compatibility
      fprintf(gpreGlob.out_file, "%sINTEGER*4  GDS__STATUS(20)    %s{ status vector }\n",
                  COLUMN, INLINE_COMMENT);
      fprintf(gpreGlob.out_file, "%sINTEGER*4  GDS__STATUS2(20)   %s{ status vector }\n",
                  COLUMN, INLINE_COMMENT);

      printa(COLUMN, "EQUIVALENCE    (ISC_STATUS(20), GDS__STATUS(20)) ");
      printa(COLUMN, "EQUIVALENCE    (ISC_STATUS2(20), GDS__STATUS2(20)) ");
      // end of code added for 3.3 compatibility

      fprintf(gpreGlob.out_file, "%sINTEGER*4  ISC_NULL          %s{ dummy status vector }\n",
                  COLUMN, INLINE_COMMENT);
      fprintf(gpreGlob.out_file, "%sINTEGER*4  SQLCODE            %s{ SQL status code }\n",
                  COLUMN, INLINE_COMMENT);
      fprintf(gpreGlob.out_file, "%sINTEGER*4  ISC_SQLCODE       %s{ SQL status code translator }\n",
                  COLUMN, INLINE_COMMENT);
      fprintf(gpreGlob.out_file,
                  "%sINTEGER*4  ISC_ARRAY_LENGTH  %s{ array return size }\n",
                  COLUMN, INLINE_COMMENT);

      bool all_static = true;
      bool dcl_ndx_var = false;

      SSHORT count = 0;
      for (const gpre_dbb* db = gpreGlob.isc_databases; db; db = db->dbb_next)
      {
            all_static = all_static && (db->dbb_scope == DBB_STATIC);
            const TEXT* name = db->dbb_name->sym_string;
            fprintf(gpreGlob.out_file, "%sINTEGER*4  %s                %s{ database handle }\n",
                        COLUMN, name, INLINE_COMMENT);

            fprintf(gpreGlob.out_file, "%sCHARACTER*256 ISC_%s        %s{ database file name }\n",
                        COLUMN, name, INLINE_COMMENT);

            for (const tpb* tpb_iterator = db->dbb_tpbs;
                   tpb_iterator;
                   tpb_iterator = tpb_iterator->tpb_dbb_next)
            {
                  gen_tpb_decls(tpb_iterator);
                  dcl_ndx_var = true;
            }

#ifdef HPUX
            // build fields to handle start_multiple

            count++;
            fprintf(gpreGlob.out_file, "%sINTEGER*4      ISC_TEB%d_DBB   %s( vector db handle )\n",
                        COLUMN, count, INLINE_COMMENT);
            fprintf(gpreGlob.out_file, "%sINTEGER*4      ISC_TEB%d_LEN   %s( vector tpb length )\n",
                        COLUMN, count, INLINE_COMMENT);
            fprintf(gpreGlob.out_file, "%sINTEGER*4      ISC_TEB%d_TPB   %s( vector tpb handle )\n",
                        COLUMN, count, INLINE_COMMENT);
#endif

            printa(COLUMN, "COMMON /%s/ %s", name, name);
      }

#ifdef HPUX
      // declare array and set up equivalence for start_multiple vector

      const SSHORT length = 12;
      fprintf(gpreGlob.out_file, "%sCHARACTER      ISC_TEB(%d)  %s( transaction vector )\n",
                  COLUMN, length * count, INLINE_COMMENT);
      for (SSHORT i = 0; i < count;)
      {
            const SSHORT index = i++ * length + 1;
            printa(COLUMN, "EQUIVALENCE    (ISC_TEB(%d), ISC_TEB%d_DBB )", index, i);
            printa(COLUMN, "EQUIVALENCE    (ISC_TEB(%d), ISC_TEB%d_LEN )", index + 4, i);
            printa(COLUMN, "EQUIVALENCE    (ISC_TEB(%d), ISC_TEB%d_TPB )", index + 8, i);
      }
#endif

      if (!all_static)
      {
            printa(COLUMN, "COMMON /GDS__TRANS/GDS__TRANS");
            printa(COLUMN, "COMMON /ISC_STATUS/ISC_STATUS");
            printa(COLUMN, "COMMON /ISC_STATUS2/ISC_STATUS2");
            printa(COLUMN, "COMMON /SQLCODE/SQLCODE");
      }

      array_decl_list = NULL;
      for (const gpre_req* request = gpreGlob.requests; request; request = request->req_next)
      {
            gen_request_decls(request);
            const gpre_port* port;
            for (port = request->req_ports; port; port = port->por_next)
                  make_port(port);
            for (blb* blob = request->req_blobs; blob; blob = blob->blb_next)
            {
                  fprintf(gpreGlob.out_file, "%sINTEGER*4 isc_%d         %s{ blob handle }\n",
                              COLUMN, blob->blb_ident, INLINE_COMMENT);
                  fprintf(gpreGlob.out_file, "%sCHARACTER*%d isc_%d      %s{ blob segment }\n",
                              COLUMN, blob->blb_seg_length, blob->blb_buff_ident, INLINE_COMMENT);
                  fprintf(gpreGlob.out_file, "%sINTEGER*2 isc_%d         %s{ segment length }\n",
                              COLUMN, blob->blb_len_ident, INLINE_COMMENT);
            }

            // Array declarations

            if (port = request->req_primary)
                  for (const ref* reference = port->por_references; reference;
                        reference = reference->ref_next)
                  {
                        if (reference->ref_field->fld_array_info)
                              make_array_declaration(reference);
                  }
      }

      // Declare DATA statement index variable

      if (dcl_ndx_var || gpreGlob.requests)
            printa(COLUMN, "INTEGER ISC_I");

      // generate event parameter block for each event in module

      SSHORT max_count = 0;
      for (gpre_lls* stack_ptr = gpreGlob.events; stack_ptr; stack_ptr = stack_ptr->lls_next)
      {
            count = gen_event_block((const act*) stack_ptr->lls_object);
            max_count = MAX(count, max_count);
      }

      if (max_count)
      {
            fprintf(gpreGlob.out_file, "%sINTEGER*4  ISC_EVENTS(%d)         %s{ event vector }\n",
                        COLUMN, max_count, INLINE_COMMENT);
            fprintf(gpreGlob.out_file, "%sINTEGER*4  ISC_EVENT_NAMES(%d)    %s{ event buffer }\n",
                        COLUMN, max_count, INLINE_COMMENT);
            fprintf(gpreGlob.out_file, "%sCHARACTER*31 ISC_EVENT_NAMES2(%d) %s{ event string buffer }\n",
                        COLUMN, max_count, INLINE_COMMENT);
      }
}


//____________________________________________________________
//
//          Generate a call to update metadata.
//

static void gen_ddl(const act* action)
{
      if (gpreGlob.sw_auto)
      {
            t_start_auto(0, status_vector(), action, true);
            printa(COLUMN, "if (gds__trans .ne. 0) then");
      }

      // Set up command type for call to RDB_DDL

      const gpre_req* request = action->act_request;

      sprintf(output_buffer, "%sCALL isc_ddl (%s, %s, gds__trans, %s%d%s, isc_%d)\n", COLUMN,
                  status_vector(),
                  request->req_database->dbb_name->sym_string, I2CONST_1,
                  request->req_length, I2CONST_2, request->req_ident);

      FTN_print_buffer(output_buffer);

      if (gpreGlob.sw_auto)
      {
            printa(COLUMN, "END IF");
            printa(COLUMN, "if (isc_status(2) .eq. 0)");
            printa(CONTINUE, "CALL isc_commit_transaction (%s, gds__trans)", status_vector());
            printa(COLUMN, "if (isc_status(2) .ne. 0)");
            printa(CONTINUE, "CALL isc_rollback_transaction (isc_status2, gds__trans)");
      }

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate a call to create a database.
//

static void gen_drop_database(const act* action)
{
      const gpre_dbb* db = (gpre_dbb*) action->act_object;

      sprintf(output_buffer, "%s CALL ISC_DROP_DATABASE (%s, %s%d%s, %s\'%s\'%s, RDB_K_DB_TYPE_GDS)\n",
                  COLUMN,
                  status_vector(),
                  I2_1, strlen(db->dbb_filename), I2_2,
                  REF_1, db->dbb_filename, REF_2);
      FTN_print_buffer(output_buffer);
      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate a dynamic SQL statement.
//

static void gen_dyn_close(const act* action)
{
      TEXT s[MAX_CURSOR_SIZE];

      const dyn* statement = (const dyn*) action->act_object;
      printa(COLUMN, "CALL %s (isc_status, %s)",
               ISC_EMBED_DSQL_CLOSE, make_name(s, statement->dyn_cursor_name));
      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate a dynamic SQL statement.
//

static void gen_dyn_declare(const act* action)
{
      TEXT s1[MAX_CURSOR_SIZE], s2[MAX_CURSOR_SIZE];

      const dyn* statement = (const dyn*) action->act_object;
      printa(COLUMN, "CALL %s (isc_status, %s, %s)",
               ISC_EMBED_DSQL_DECLARE,
               make_name(s1, statement->dyn_statement_name),
               make_name(s2, statement->dyn_cursor_name));
      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate a dynamic SQL statement.
//

static void gen_dyn_describe(const act* action, bool bind_flag)
{
      TEXT s[MAX_CURSOR_SIZE];

      const dyn* statement = (const dyn*) action->act_object;
      printa(COLUMN, "CALL %s (isc_status, %s, %s%d%s, %s)",
               bind_flag ? ISC_EMBED_DSQL_DESCRIBE_BIND : ISC_EMBED_DSQL_DESCRIBE,
               make_name(s, statement->dyn_statement_name),
               DSQL_I2CONST_1, gpreGlob.sw_sql_dialect, DSQL_I2CONST_2,
               statement->dyn_sqlda);

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate a dynamic SQL statement.
//

static void gen_dyn_execute(const act* action)
{
      const TEXT* transaction;
      gpre_req* request;
      gpre_req req_const;

      const dyn* statement = (const dyn*) action->act_object;
      if (statement->dyn_trans)
      {
            transaction = statement->dyn_trans;
            request = &req_const;
            request->req_trans = transaction;
      }
      else
      {
            transaction = "gds__trans";
            request = NULL;
      }

      if (gpreGlob.sw_auto)
      {
            t_start_auto(request, status_vector(), action, true);
            printa(COLUMN, "if (%s .ne. 0) then", transaction);
      }

      const TEXT* sqlda = statement->dyn_sqlda;
      const TEXT* sqlda2 = statement->dyn_sqlda2;
#ifdef HPUX
      TEXT s2[64], s3[64];
      if (sqlda)
      {
            sprintf(s2, "isc_baddress (%s)", sqlda);
            sqlda = s2;
      }
      if (sqlda2)
      {
            sprintf(s3, "isc_baddress (%s)", sqlda2);
            sqlda2 = s3;
      }
#endif

      TEXT s1[MAX_CURSOR_SIZE];
      printa(COLUMN,
               sqlda2 ?
                        "CALL %s (isc_status, %s, %s, %s%d%s, %s, %s)" :
                        "CALL %s (isc_status, %s, %s, %s%d%s, %s)",
               sqlda2 ? ISC_EMBED_DSQL_EXECUTE2 : ISC_EMBED_DSQL_EXECUTE,
               transaction,
               make_name(s1, statement->dyn_statement_name),
               DSQL_I2CONST_1, gpreGlob.sw_sql_dialect, DSQL_I2CONST_2,
               sqlda ? sqlda : NULL_SQLDA, sqlda2 ? sqlda2 : NULL_SQLDA);

      if (gpreGlob.sw_auto)
            printa(COLUMN, "END IF");

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate a dynamic SQL statement.
//

static void gen_dyn_fetch(const act* action)
{
      const dyn* statement = (const dyn*) action->act_object;

      const TEXT* sqlda = statement->dyn_sqlda;
#ifdef HPUX
      TEXT s2[64];
      if (sqlda)
      {
            sprintf(s2, "isc_baddress (%s)", sqlda);
            sqlda = s2;
      }
#endif

      TEXT s1[MAX_CURSOR_SIZE];
      printa(COLUMN, "SQLCODE = %s (isc_status, %s, %s%d%s, %s)",
               ISC_EMBED_DSQL_FETCH,
               make_name(s1, statement->dyn_cursor_name),
               DSQL_I2CONST_1, gpreGlob.sw_sql_dialect, DSQL_I2CONST_2,
               sqlda ? sqlda : NULL_SQLDA);

      printa(COLUMN, "IF (SQLCODE .NE. 100) SQLCODE = ISC_SQLCODE (isc_status)");
}


//____________________________________________________________
//
//          Generate code for an EXECUTE IMMEDIATE dynamic SQL statement.
//

static void gen_dyn_immediate(const act* action)
{
      const TEXT* transaction;
      gpre_req* request;
      gpre_req req_const;

      const dyn* statement = (const dyn*) action->act_object;
      if (statement->dyn_trans)
      {
            transaction = statement->dyn_trans;
            request = &req_const;
            request->req_trans = transaction;
      }
      else
      {
            transaction = "gds__trans";
            request = NULL;
      }

      const gpre_dbb* database = statement->dyn_database;

      if (gpreGlob.sw_auto)
      {
            t_start_auto(request, status_vector(), action, true);
            printa(COLUMN, "if (%s .ne. 0) then", transaction);
      }

      const TEXT* sqlda = statement->dyn_sqlda;
      const TEXT* sqlda2 = statement->dyn_sqlda2;
#ifdef HPUX
      TEXT s2[64], s3[64];
      if (sqlda)
      {
            sprintf(s2, "isc_baddress (%s)", sqlda);
            sqlda = s2;
      }
      if (sqlda2)
      {
            sprintf(s3, "isc_baddress (%s)", sqlda2);
            sqlda2 = s3;
      }
#endif

      printa(COLUMN,
               sqlda2 ?
                        "CALL %s (isc_status, %s, %s, %sLEN(%s)%s, %s%s%s, %s%d%s, %s, %s)" :
                        "CALL %s (isc_status, %s, %s, %sLEN(%s)%s, %s%s%s, %s%d%s, %s)",
               sqlda2 ? ISC_EMBED_DSQL_EXECUTE_IMMEDIATE2 : ISC_EMBED_DSQL_EXECUTE_IMMEDIATE,
               transaction,
               database->dbb_name->sym_string, DSQL_I2CONST_1,
               statement->dyn_string, DSQL_I2CONST_2, REF_1,
               statement->dyn_string, REF_2, DSQL_I2CONST_1, gpreGlob.sw_sql_dialect,
               DSQL_I2CONST_2, sqlda ? sqlda : NULL_SQLDA,
               sqlda2 ? sqlda2 : NULL_SQLDA);

      if (gpreGlob.sw_auto)
            printa(COLUMN, "END IF");

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate a dynamic SQL statement.
//

static void gen_dyn_insert(const act* action)
{
      const dyn* statement = (const dyn*) action->act_object;

      const TEXT* sqlda = statement->dyn_sqlda;
#ifdef HPUX
      TEXT s2[64];
      if (sqlda)
      {
            sprintf(s2, "isc_baddress (%s)", sqlda);
            sqlda = s2;
      }
#endif

      TEXT s1[MAX_CURSOR_SIZE];
      printa(COLUMN, "%s (isc_status, %s, %s%d%s, %s)",
               ISC_EMBED_DSQL_INSERT,
               make_name(s1, statement->dyn_cursor_name),
               DSQL_I2CONST_1, gpreGlob.sw_sql_dialect, DSQL_I2CONST_2,
               sqlda ? sqlda : NULL_SQLDA);

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate a dynamic SQL statement.
//

static void gen_dyn_open(const act* action)
{
      const TEXT* transaction;
      gpre_req* request;
      gpre_req req_const;

      const dyn* statement = (const dyn*) action->act_object;
      if (statement->dyn_trans)
      {
            transaction = statement->dyn_trans;
            request = &req_const;
            request->req_trans = transaction;
      }
      else
      {
            transaction = "gds__trans";
            request = NULL;
      }

      if (gpreGlob.sw_auto)
      {
            t_start_auto(request, status_vector(), action, true);
            printa(COLUMN, "if (%s .ne. 0) then", transaction);
      }

      const TEXT* sqlda = statement->dyn_sqlda;
      const TEXT* sqlda2 = statement->dyn_sqlda2;
#ifdef HPUX
      TEXT s2[64], s3[64];
      if (sqlda)
      {
            sprintf(s2, "isc_baddress (%s)", sqlda);
            sqlda = s2;
      }
      if (sqlda2)
      {
            sprintf(s3, "isc_baddress (%s)", sqlda2);
            sqlda2 = s3;
      }
#endif

      TEXT s1[MAX_CURSOR_SIZE];
      printa(COLUMN,
               sqlda2 ?
                        "CALL %s (isc_status, %s, %s, %s%d%s, %s, %s)" :
                        "CALL %s (isc_status, %s, %s, %s%d%s, %s)",
               sqlda2 ? ISC_EMBED_DSQL_OPEN2 : ISC_EMBED_DSQL_OPEN,
               transaction,
               make_name(s1, statement->dyn_cursor_name),
               DSQL_I2CONST_1, gpreGlob.sw_sql_dialect, DSQL_I2CONST_2,
               sqlda ? sqlda : NULL_SQLDA, sqlda2 ? sqlda2 : NULL_SQLDA);

      if (gpreGlob.sw_auto)
            printa(COLUMN, "END IF");

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate a dynamic SQL statement.
//

static void gen_dyn_prepare(const act* action)
{
      const TEXT* transaction;
      gpre_req* request;
      gpre_req req_const;

      const dyn* statement = (const dyn*) action->act_object;
      const gpre_dbb* database = statement->dyn_database;

      if (statement->dyn_trans)
      {
            transaction = statement->dyn_trans;
            request = &req_const;
            request->req_trans = transaction;
      }
      else
      {
            transaction = "gds__trans";
            request = NULL;
      }

      if (gpreGlob.sw_auto)
      {
            t_start_auto(request, status_vector(), action, true);
            printa(COLUMN, "if (%s .ne. 0) then", transaction);
      }

      const TEXT* sqlda = statement->dyn_sqlda;
#ifdef HPUX
      TEXT s2[64];
      if (sqlda)
      {
            sprintf(s2, "isc_baddress (%s)", sqlda);
            sqlda = s2;
      }
#endif

      TEXT s1[MAX_CURSOR_SIZE];
      printa(COLUMN, "CALL %s (isc_status, %s, %s, %s, %sLEN(%s)%s, %s%s%s, %s%d%s, %s)",
               ISC_EMBED_DSQL_PREPARE, database->dbb_name->sym_string,
               transaction, make_name(s1, statement->dyn_statement_name),
               DSQL_I2CONST_1, statement->dyn_string, DSQL_I2CONST_2, REF_1,
               statement->dyn_string, REF_2, DSQL_I2CONST_1, gpreGlob.sw_sql_dialect,
               DSQL_I2CONST_2, sqlda ? sqlda : NULL_SQLDA);

      if (gpreGlob.sw_auto)
            printa(COLUMN, "END IF");

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate substitution text for END_MODIFY.
//

static void gen_emodify(const act* action)
{
      SCHAR s1[MAX_REF_SIZE], s2[MAX_REF_SIZE];

      const upd* modify = (const upd*) action->act_object;

      for (const ref* reference = modify->upd_port->por_references; reference;
            reference = reference->ref_next)
      {
            const ref* source = reference->ref_source;
            if (!source)
                  continue;
            const gpre_fld* field = reference->ref_field;
            gen_name(s1, source, true);
            gen_name(s2, reference, true);
            if (field->fld_dtype == dtype_blob || field->fld_dtype == dtype_quad ||
                  field->fld_dtype == dtype_date)
            {
                  sprintf(output_buffer, "%sCALL isc_qtoq (%s, %s)\n", COLUMN, s1, s2);
            }
            else
                  sprintf(output_buffer, "%s%s = %s\n", COLUMN, s2, s1);
            FTN_print_buffer(output_buffer);
            if (field->fld_array_info)
                  gen_get_or_put_slice(action, reference, false);
      }

      gen_send(action, modify->upd_port);
}


//____________________________________________________________
//
//          Generate substitution text for END_STORE.
//

static void gen_estore(const act* action)
{
      const gpre_req* request = action->act_request;

      // if this is a store...returning_values (aka store2)
      // we already executed the store, so go home quietly

      if (request->req_type == REQ_store2)
            return;

      gen_start(action, request->req_primary);
      if (action->act_error || (action->act_flags & ACT_sql))
            printa(COLUMN, "END IF");
}


//____________________________________________________________
//
//          Generate an END IF for the IF generated for
//          the AT_END clause.
//

static void gen_end_fetch()
{
      printa(COLUMN, "END IF");
}


//____________________________________________________________
//
//          Generate definitions associated with a single request.
//

static void gen_endfor(const act* action)
{
      const gpre_req* request = action->act_request;

      if (request->req_sync)
            gen_send(action, request->req_sync);

      printa(COLUMN, "GOTO %d", request->req_top_label);
      printa("", "%-6dCONTINUE", request->req_btm_label);
}


//____________________________________________________________
//
//          Generate substitution text for ERASE.
//

static void gen_erase(const act* action)
{
      const upd* erase = (const upd*) action->act_object;
      gen_send(action, erase->upd_port);
}


//____________________________________________________________
//
//          Generate event parameter blocks for use
//          with a particular call to isc_event_wait.
//

static SSHORT gen_event_block(const act* action)
{
      gpre_nod* init = (gpre_nod*) action->act_object;

      int ident = CMP_next_ident();
      init->nod_arg[2] = (gpre_nod*) ident;

      printa(COLUMN, "INTEGER*4      isc_%dA", ident);
      printa(COLUMN, "INTEGER*4      isc_%dB", ident);
      printa(COLUMN, "INTEGER*2      isc_%dL", ident);

      gpre_nod* list = init->nod_arg[1];

      return list->nod_count;
}


//____________________________________________________________
//
//          Generate substitution text for EVENT_INIT.
//

static void gen_event_init(const act* action)
{
#if (!defined AIX && !defined AIX_PPC)
      const TEXT* pattern1 =
            "ISC_%N1L = ISC_EVENT_BLOCK_A (%RFISC_%N1A%RE, %RFISC_%N1B%RE, %VF%S3%N2%S4%VE, %RFISC_EVENT_NAMES%RE)";
#else
      const TEXT* pattern1 =
            "CALL ISC_EVENT_BLOCK_S (%RFISC_%N1A%RE, %RFISC_%N1B%RE, %VF%S3%N2%S4%VE, %RFISC_EVENT_NAMES%RE, %RFISC_%N1L%RE)";
#endif
      const TEXT* pattern2 =
            "CALL %S1 (%V1, %RF%DH%RE, %VFISC_%N1L%VE, %VFISC_%N1A%VE, %VFISC_%N1B%VE)";
      const TEXT* pattern3 =
            "CALL %S2 (ISC_EVENTS, %VFISC_%N1L%VE, %VFISC_%N1A%VE, %VFISC_%N1B%VE)";

      gpre_nod* init = (gpre_nod*) action->act_object;
      gpre_nod* event_list = init->nod_arg[1];

      PAT args;
      args.pat_database = (gpre_dbb*) init->nod_arg[3];
      args.pat_vector1 = status_vector();
      args.pat_value1 = (int)(IPTR) init->nod_arg[2];
      args.pat_value2 = (int) event_list->nod_count;
      args.pat_string1 = ISC_EVENT_WAIT;
      args.pat_string2 = ISC_EVENT_COUNTS;
      args.pat_string3 = I2_1;
      args.pat_string4 = I2_2;

      // generate call to dynamically generate event blocks

      TEXT variable[MAX_REF_SIZE];
      SSHORT count = 0;
      gpre_nod** ptr = event_list->nod_arg;
      for (gpre_nod** const end = ptr + event_list->nod_count; ptr < end; ptr++)
      {
            count++;
            gpre_nod* node = *ptr;
            if (node->nod_type == nod_field)
            {
                  const ref* reference = (const ref*) node->nod_arg[0];
                  gen_name(variable, reference, true);
                  printa(COLUMN, "ISC_EVENT_NAMES2(%d) = %s", count, variable);
            }
            else
                  printa(COLUMN, "ISC_EVENT_NAMES2(%d) = %s", count, node->nod_arg[0]);

#if (!defined AIX && !defined AIX_PPC)
            printa(COLUMN, "ISC_EVENT_NAMES(%d) = ISC_BADDRESS (%sISC_EVENT_NAMES2(%d)%s)",
                     count, REF_1, count, REF_2);
#else
            printa(COLUMN, "CALL ISC_BADDRESS (%sISC_EVENT_NAMES2(%d)%s, ISC_EVENT_NAMES(%d))",
                     REF_1, count, REF_2, count);
#endif
      }

      const SSHORT column = 6;

      PATTERN_expand(column, pattern1, &args);

      // generate actual call to event_wait

      PATTERN_expand(column, pattern2, &args);

      // get change in event counts, copying event parameter block for reuse

      PATTERN_expand(column, pattern3, &args);
      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate substitution text for EVENT_WAIT.
//

static void gen_event_wait(const act* action)
{
      const TEXT* pattern1 =
            "CALL %S1 (%V1, %RF%DH%RE, %VFISC_%N1L%VE, %VFISC_%N1A%VE, %VFISC_%N1B%VE)";
      const TEXT* pattern2 =
            "CALL %S2 (ISC_EVENTS, %VFISC_%N1L%VE, %VFISC_%N1A%VE, %VFISC_%N1B%VE)";

      const gpre_sym* event_name = (const gpre_sym*) action->act_object;

      // go through the stack of gpreGlob.events, checking to see if the
      // event has been initialized and getting the event identifier

      int ident = -1;
      const gpre_dbb* database =  NULL;
      for (gpre_lls* stack_ptr = gpreGlob.events; stack_ptr; stack_ptr = stack_ptr->lls_next)
      {
            const act* event_action = (const act*) stack_ptr->lls_object;
            const gpre_nod* event_init = (gpre_nod*) event_action->act_object;
            const gpre_sym* stack_name = (const gpre_sym*) event_init->nod_arg[0];
            if (!strcmp(event_name->sym_string, stack_name->sym_string))
            {
                  ident = (int)(IPTR) event_init->nod_arg[2];
                  database = (gpre_dbb*) event_init->nod_arg[3];
            }
      }

      if (ident < 0)
      {
            TEXT s[64];
            sprintf(s, "event handle \"%s\" not found", event_name->sym_string);
            CPR_error(s);
        return;
      }

      PAT args;
      args.pat_database = database;
      args.pat_vector1 = status_vector();
      args.pat_value1 = ident;
      args.pat_string1 = ISC_EVENT_WAIT;
      args.pat_string2 = ISC_EVENT_COUNTS;

      // generate calls to wait on the event and to fill out the gpreGlob.events array

      const SSHORT column = 6;

      PATTERN_expand(column, pattern1, &args);
      PATTERN_expand(column, pattern2, &args);
      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate replacement text for the SQL FETCH statement.  The
//          epilog FETCH statement is handled by GEN_S_FETCH (generate
//          stream fetch).
//

static void gen_fetch(const act* action)
{
      SCHAR s[MAX_REF_SIZE];

      const gpre_req* request = action->act_request;
      if (request->req_sync)
      {
            gen_send(action, request->req_sync);
            printa(COLUMN, "IF (SQLCODE .EQ. 0) THEN");
      }

      gen_receive(action, request->req_primary);
      printa(COLUMN, "IF (%s .NE. 0) THEN", gen_name(s, request->req_eof, true));
      printa(COLUMN, "SQLCODE = 0");

      gpre_nod* var_list = (gpre_nod*) action->act_object;
      if (var_list)
      {
            for (int i = 0; i < var_list->nod_count; i++) {
                  asgn_to(action, (const ref*) var_list->nod_arg[i]);
            }
      }
      printa(COLUMN, "ELSE");
      printa(COLUMN, "SQLCODE = 100");
      printa(COLUMN, "END IF");

      if (request->req_sync)
            printa(COLUMN, "END IF");
}


//____________________________________________________________
//
//          Generate substitution text for FINISH
//

static void gen_finish(const act* action)
{
      const gpre_dbb* db = NULL;

      if (gpreGlob.sw_auto || ((action->act_flags & ACT_sql) && action->act_type != ACT_disconnect))
      {
            printa(COLUMN, "IF (GDS__TRANS .NE. 0) THEN");
            printa(COLUMN, "    CALL ISC_%s_TRANSACTION (%s, GDS__TRANS)",
                     (action->act_type != ACT_rfinish) ? "COMMIT" : "ROLLBACK",
                     status_vector());
            status_and_stop(action);
            printa(COLUMN, "END IF");
      }

      // the user supplied one or more db_handles

      for (rdy* ready = (rdy*) action->act_object; ready; ready = ready->rdy_next)
      {
            db = ready->rdy_database;
            printa(COLUMN, "IF (%s .NE. 0) THEN", db->dbb_name->sym_string);
            printa(COLUMN, "CALL ISC_DETACH_DATABASE (%s, %s)",
                     status_vector(), db->dbb_name->sym_string);
            status_and_stop(action);
            printa(COLUMN, "END IF");
      }

      if (!db)
            for (db = gpreGlob.isc_databases; db; db = db->dbb_next)
            {
                  if ((action->act_error || (action->act_flags & ACT_sql)) && db != gpreGlob.isc_databases)
                  {
                        printa(COLUMN, "IF (%s .NE. 0 .AND. ISC_STATUS(2) .EQ. 0) THEN",
                                 db->dbb_name->sym_string);
                  }
                  else
                        printa(COLUMN, "IF (%s .NE. 0) THEN", db->dbb_name->sym_string);
                  printa(COLUMN, "CALL ISC_DETACH_DATABASE (%s, %s)",
                           status_vector(), db->dbb_name->sym_string);
                  status_and_stop(action);
                  printa(COLUMN, "END IF");
            }
}


//____________________________________________________________
//
//          Generate substitution text for FOR statement.
//

static void gen_for(const act* action)
{
      gen_s_start(action);
      gpre_req* request = action->act_request;
      request->req_top_label = next_label();
      request->req_btm_label = next_label();
      if (action->act_error || (action->act_flags & ACT_sql))
            printa(COLUMN, "IF (ISC_STATUS(2) .NE. 0) GOTO %d\n", request->req_btm_label);

      printa("", "%-6dCONTINUE", request->req_top_label);

      SCHAR s[MAX_REF_SIZE];
      gen_receive(action, request->req_primary);
      if (action->act_error || (action->act_flags & ACT_sql))
            printa(COLUMN, "IF (%s .EQ. 0 .OR. ISC_STATUS(2) .NE. 0) GOTO %d\n",
                     gen_name(s, request->req_eof, true), request->req_btm_label);
      else
            printa(COLUMN, "IF (%s .EQ. 0) GOTO %d\n",
                     gen_name(s, request->req_eof, true), request->req_btm_label);

      const gpre_port* port = action->act_request->req_primary;
      if (port)
      {
            for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
            {
                  if (reference->ref_flags & REF_fetch_array)
                        gen_get_or_put_slice(action, reference, true);
            }
      }
}


//____________________________________________________________
//
//          Generate a call to isc_get_slice
//       or isc_put_slice for an array.
//

static void gen_get_or_put_slice(const act* action, const ref* reference, bool get)
{
      if (!(reference->ref_flags & REF_fetch_array))
            return;

      TEXT s[MAX_REF_SIZE];
      if (get)
      {
            if (action->act_flags & ACT_sql)
            {
                  sprintf(output_buffer,
                              "%sCALL ISC_GET_SLICE (%s, %s, %s, %s, %s%d%s, isc_%d, %s0%s, %s0%s, %s%"
                              SLONGFORMAT"%s, %s, ISC_ARRAY_LENGTH)\n",
                              COLUMN,
                              status_vector(),
                              action->act_request->req_database->dbb_name->sym_string,
                              action->act_request->req_trans,
                              gen_name(s, reference, true),
                              I2CONST_1, reference->ref_sdl_length, I2CONST_2,
                              reference->ref_sdl_ident,
                              I2CONST_1, I2CONST_2,
                              I2CONST_1, I2CONST_2,
                              I4CONST_1, reference->ref_field->fld_array_info->ary_size,
                              I4CONST_2, reference->ref_value);
            }
            else
            {
                  sprintf(output_buffer,
                              "%sCALL ISC_GET_SLICE (%s, %s, %s, %s, %s%d%s, isc_%d, %s0%s, %s0%s, %s%"
                              SLONGFORMAT"%s, isc_%d, ISC_ARRAY_LENGTH)\n",
                              COLUMN,
                              status_vector(),
                              action->act_request->req_database->dbb_name->sym_string,
                              action->act_request->req_trans,
                              gen_name(s, reference, true),
                              I2CONST_1, reference->ref_sdl_length, I2CONST_2,
                              reference->ref_sdl_ident,
                              I2CONST_1, I2CONST_2,
                              I2CONST_1, I2CONST_2,
                              I4CONST_1, reference->ref_field->fld_array_info->ary_size,
                              I4CONST_2,
                              reference->ref_field->fld_array_info->ary_ident);
            }
      }
      else
      {
            if (action->act_flags & ACT_sql)
            {
                  sprintf(output_buffer,
                              "%sCALL ISC_PUT_SLICE (%s, %s, %s, %s, %s%d%s, isc_%d, %s0%s, %s0%s, %s%"
                              SLONGFORMAT"%s, %s)\n",
                              COLUMN,
                              status_vector(),
                              action->act_request->req_database->dbb_name->sym_string,
                              action->act_request->req_trans,
                              gen_name(s, reference, true),
                              I2CONST_1, reference->ref_sdl_length, I2CONST_2,
                              reference->ref_sdl_ident,
                              I2CONST_1, I2CONST_2,
                              I2CONST_1, I2CONST_2,
                              I4CONST_1, reference->ref_field->fld_array_info->ary_size,
                              I4CONST_2, reference->ref_value);
            }
            else
            {
                  sprintf(output_buffer,
                              "%sCALL ISC_PUT_SLICE (%s, %s, %s, %s, %s%d%s, isc_%d, %s0%s, %s0%s, %s%"
                              SLONGFORMAT"%s, isc_%d)\n",
                              COLUMN,
                              status_vector(),
                              action->act_request->req_database->dbb_name->sym_string,
                              action->act_request->req_trans,
                              gen_name(s, reference, true),
                              I2CONST_1, reference->ref_sdl_length, I2CONST_2,
                              reference->ref_sdl_ident,
                              I2CONST_1, I2CONST_2,
                              I2CONST_1, I2CONST_2,
                              I4CONST_1, reference->ref_field->fld_array_info->ary_size,
                              I4CONST_2,
                              reference->ref_field->fld_array_info->ary_ident);
            }
      }

      FTN_print_buffer(output_buffer);
}


//____________________________________________________________
//
//          Generate the code to do a get segment.
//

static void gen_get_segment(const act* action)
{
      blb* blob;

      if (action->act_flags & ACT_sql)
            blob = (blb*) action->act_request->req_blobs;
      else
            blob = (blb*) action->act_object;

      sprintf(output_buffer,
                  "%sISC_STATUS(2) = ISC_GET_SEGMENT (%s, isc_%d, isc_%d, %sLEN(isc_%d)%s, %sisc_%d%s)\n",
                  COLUMN,
                  status_vector(),
                  blob->blb_ident,
                  blob->blb_len_ident,
                  I2CONST_1, blob->blb_buff_ident, I2CONST_2,
                  REF_1, blob->blb_buff_ident, REF_2);

      FTN_print_buffer(output_buffer);

      if (action->act_flags & ACT_sql)
      {
            status_and_stop(action);
            printa(COLUMN, "IF (SQLCODE .EQ. 0 .OR. SQLCODE .EQ. 101) THEN");
            const ref* into = action->act_object;
            printa(COLUMN_INDENT, "%s = isc_%d", into->ref_value, blob->blb_buff_ident);
            if (into->ref_null_value)
                  printa(COLUMN_INDENT, "%s = isc_%d", into->ref_null_value, blob->blb_len_ident);
            printa(COLUMN, "ENDIF");
      }
      else if (!action->act_error)
      {
            printa(COLUMN, "IF (ISC_STATUS(2) .NE. 0 .AND. ISC_STATUS(2) .NE. ISC_SEGMENT");
            printa(CONTINUE, ".AND. ISC_STATUS(2) .NE. ISC_SEGSTR_EOF) THEN");
            printa(COLUMN, "    CALL ISC_PRINT_STATUS (ISC_STATUS)");
            printa(COLUMN, "    STOP");
            printa(COLUMN, "END IF");
      }
}


//____________________________________________________________
//
//          Generate text to compile and start a stream.  This is
//          used both by START_STREAM and FOR
//

static void gen_loop(const act* action)
{
      TEXT name[MAX_REF_SIZE];

      gen_s_start(action);
      const gpre_req* request = action->act_request;
      const gpre_port* port = request->req_primary;
      printa(COLUMN, "IF (SQLCODE .EQ. 0) THEN");
      gen_receive(action, port);
      gen_name(name, port->por_references, true);
      printa(COLUMN, "IF (SQLCODE .EQ. 0 .AND. %s .EQ. 0) ", name);
      printa(CONTINUE, "SQLCODE = 100");
      printa(COLUMN, "END IF");
}


//____________________________________________________________
//
//          Generate a name for a reference.  Name is constructed from
//          port and parameter idents.
//

static TEXT* gen_name(SCHAR* const string, const ref* reference, bool as_blob)
{
      if (reference->ref_field->fld_array_info && !as_blob)
            fb_utils::snprintf(string, MAX_REF_SIZE, "isc_%d",
                        reference->ref_field->fld_array_info->ary_ident);
      else
            fb_utils::snprintf(string, MAX_REF_SIZE, "isc_%d", reference->ref_ident);

      return string;
}


//____________________________________________________________
//
//          Generate a block to handle errors.
//

static void gen_on_error(const act* action)
{
      const act* err_action = (const act*) action->act_object;
      switch (err_action->act_type)
      {
      case ACT_get_segment:
      case ACT_put_segment:
      case ACT_endblob:
            printa(COLUMN,
                        "IF (ISC_STATUS(2) .NE. 0 .AND. ISC_STATUS(2) .NE. ISC_SEGMENT .AND. ISC_STATUS(2) .NE. ISC_SEGSTR_EOF) THEN");
            break;
      default:
            printa(COLUMN, "IF (ISC_STATUS(2) .NE. 0) THEN");
      }
}


//____________________________________________________________
//
//          Generate code for an EXECUTE PROCEDURE.
//

static void gen_procedure(const act* action)
{
      const gpre_req* request = action->act_request;
      const gpre_port* in_port = request->req_vport;
      const gpre_port* out_port = request->req_primary;

      gpre_dbb* database = request->req_database;
      PAT args;
      args.pat_database = database;
      args.pat_request = action->act_request;
      args.pat_vector1 = status_vector();
      args.pat_request = request;
      args.pat_port = in_port;
      args.pat_port2 = out_port;

      const TEXT* pattern;
      if (in_port && in_port->por_length)
            pattern =
                  "CALL ISC_TRANSACT_REQUEST (%V1, %RF%DH%RE, %RF%RT%RE, %VF%RS%VE, %RF%RI%RE, %VF%PL%VE, %RF%PI%RE, %VF%QL%VE, %RF%QI%RE)\n";
      else
            pattern =
                  "CALL ISC_TRANSACT_REQUEST (%V1, %RF%DH%RE, %RF%RT%RE, %VF%RS%VE, %RI, %VF0%VE, 0, %VF%QL%VE, %RF%QI%RE)\n";

      // Get database attach and transaction started

      if (gpreGlob.sw_auto)
            t_start_auto(0, status_vector(), action, true);

      // Move in input values

      asgn_from(action, request->req_values);

      // Execute the procedure

      const USHORT column = 6;

      PATTERN_expand(column, pattern, &args);

      status_and_stop(action);

      printa(COLUMN, "IF (SQLCODE .EQ. 0) THEN");

      // Move out output values

      asgn_to_proc(request->req_references);
      printa(COLUMN, "END IF");
}


//____________________________________________________________
//
//          Generate the code to do a put segment.
//

static void gen_put_segment(const act* action)
{
      blb* blob;

      if (action->act_flags & ACT_sql)
      {
            blob = (blb*) action->act_request->req_blobs;
            const ref* from = action->act_object;
            printa(COLUMN, "isc_%d = %s", blob->blb_len_ident, from->ref_null_value);
            printa(COLUMN, "isc_%d = %s", blob->blb_buff_ident, from->ref_value);
      }
      else
            blob = (blb*) action->act_object;

      sprintf(output_buffer, "%sISC_STATUS(2) = ISC_PUT_SEGMENT (%s, isc_%d, %sisc_%d%s, %sisc_%d%s)\n",
                  COLUMN,
                  status_vector(),
                  blob->blb_ident,
                  VAL_1, blob->blb_len_ident, VAL_2,
                  REF_1, blob->blb_buff_ident, REF_2);
      FTN_print_buffer(output_buffer);

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate BLR in raw, numeric form.  Ughly but dense.
//

static void gen_raw(const UCHAR* blr, req_t request_type, int request_length, int begin_c, int end_c)
{
      union {
            UCHAR bytewise_blr[4];
            SLONG longword_blr;
      } blr_hunk;

      blr = blr + begin_c;
      int blr_length = end_c - begin_c + 1;

      TEXT buffer[80];
      TEXT* p = buffer;

      while (blr_length)
      {
          blr_hunk.longword_blr = 0;
            for (UCHAR* c = blr_hunk.bytewise_blr; c < blr_hunk.bytewise_blr + sizeof(SLONG); c++)
            {
                  if (--blr_length)
                        *c = *blr++;
                  else
                  {
                        if (request_type == REQ_slice)
                              *c = isc_sdl_eoc;
                        else if (request_type == REQ_ddl || request_type == REQ_create_database ||
                              (request_length != end_c + 1))
                        {
                              *c = *blr++;
                        }
                        else
                              *c = blr_eoc;
                        break;
                  }
            }
            if (blr_length)
                  sprintf(p, "%"SLONGFORMAT",", blr_hunk.longword_blr);
            else
                  sprintf(p, "%"SLONGFORMAT, blr_hunk.longword_blr);
            while (*p)
                  p++;
            if (p - buffer > 50)
            {
                  fprintf(gpreGlob.out_file, "%s%s\n", CONTINUE, buffer);
                  p = buffer;
                  *p = 0;
            }
      }

      fprintf(gpreGlob.out_file, "%s%s/\n", CONTINUE, buffer);
}


//____________________________________________________________
//
//          Generate substitution text for READY
//

static void gen_ready(const act* action)
{
      const TEXT* vector = status_vector();

      for (rdy* ready = (rdy*) action->act_object; ready; ready = ready->rdy_next)
      {
            const gpre_dbb* db = ready->rdy_database;
            const TEXT* filename = ready->rdy_filename;
            if (!filename)
                  filename = db->dbb_runtime;
            if (action->act_error && (ready != (rdy*) action->act_object))
                  printa(COLUMN, "IF (ISC_STATUS(2) .EQ. 0) THEN");
            make_ready(db, filename, vector, ready->rdy_request);
            status_and_stop(action);
            if (action->act_error && (ready != (rdy*) action->act_object))
                  printa(COLUMN, "END IF");
      }
}


//____________________________________________________________
//
//          Generate a send or receive call for a port.
//

static void gen_receive(const act* action, const gpre_port* port)
{
      const gpre_req* request = action->act_request;

      sprintf(output_buffer, "%sCALL ISC_RECEIVE (%s, %s, %s%d%s, %s%d%s, %sisc_%d%s, %s%s%s)\n",
                  COLUMN, status_vector(), request->req_handle, I2CONST_1,
                  port->por_msg_number, I2CONST_2, I2CONST_1, port->por_length,
                  I2CONST_2, REF_1, port->por_ident, REF_2, VAL_1,
                  request->req_request_level, VAL_2);

      FTN_print_buffer(output_buffer);

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate substitution text for RELEASE_REQUESTS
//       For active databases, call isc_release_request.
//       for all others, just zero the handle.  For the
//       release request calls, ignore error returns, which
//       are likely if the request was compiled on a database
//       which has been released and re-readied.  If there is
//       a serious error, it will be caught on the next statement.
//

static void gen_release(const act* action)
{
      const gpre_dbb* exp_db = (gpre_dbb*) action->act_object;

      for (const gpre_req* request = gpreGlob.requests; request; request = request->req_next)
      {
            gpre_dbb* db = request->req_database;
            if (exp_db && db != exp_db)
                  continue;
            if (!(request->req_flags & REQ_exp_hand))
            {
                  printa(COLUMN, "IF %s", db->dbb_name->sym_string);
                  printa(CONTINUE, "CALL ISC_RELEASE_REQUEST (ISC_STATUS, %S)", request->req_handle);
                  printa(COLUMN, "%s = 0", request->req_handle);
            }
      }
}


//____________________________________________________________
//
//          Generate definitions associated with a single request.
//

static void gen_request_data( const gpre_req* request)
{
      // gpreGlob.requests are generated as raw BLR in longword chunks
      // because FORTRAN is a miserable excuse for a language
      // and doesn't allow byte value assignments to character
      // fields.

      if (!(request->req_flags & (REQ_exp_hand | REQ_sql_blob_open | REQ_sql_blob_create)) &&
            request->req_type != REQ_slice && request->req_type != REQ_procedure)
      {
            fprintf(gpreGlob.out_file, "%sDATA %s /0/               %s{ init request handle }\n\n",
                        COLUMN, request->req_handle, INLINE_COMMENT);
      }

      if (request->req_flags & (REQ_sql_blob_open | REQ_sql_blob_create))
            fprintf(gpreGlob.out_file, "%sDATA isc_%dS /0/             %s{ init SQL statement handle }\n\n",
                        COLUMN, request->req_ident, INLINE_COMMENT);

      if (request->req_flags & REQ_sql_cursor)
            fprintf(gpreGlob.out_file, "%sDATA isc_%dS /0/             %s{ init SQL statement handle }\n\n",
                        COLUMN, request->req_ident, INLINE_COMMENT);

      // Changed termination test in for-loop from <= to < to fix bug#840.
      // We were generating data statements with bad bounds on the last data
      // statement if the data size was divisible by 75.  mao 4/3/89

      if ((request->req_type == REQ_ready) || (request->req_type == REQ_create_database))
      {
            if (request->req_length || request->req_flags & REQ_extend_dpb)
            {
                  fprintf(gpreGlob.out_file, "%sDATA isc_%dl /%d/               %s{ request length }\n\n",
                              COLUMN, request->req_ident, request->req_length, INLINE_COMMENT);
            }
      }

      if (request->req_length)
      {
            for (int begin_i = 0; begin_i < request->req_length; begin_i = begin_i + (75 * sizeof(SLONG)))
            {
                  const int end_i = MIN(request->req_length - 1, begin_i + (SLONG)(75 * sizeof(SLONG)) - 1);
                  printa(COLUMN, "DATA (isc_%d(ISC_I)%s ISC_I=%d,%d)  /",
                           request->req_ident, COMMA, (begin_i / sizeof(SLONG)) + 1,
                           (end_i / sizeof(SLONG)) + 1);
                  gen_raw(request->req_blr, request->req_type, request->req_length, begin_i, end_i);
            }

            const TEXT* string_type;
            if (!gpreGlob.sw_raw)
            {
                  printa(COMMENT, " ");
                  printa(COMMENT, "FORMATTED REQUEST BLR FOR isc_%d = ", request->req_ident);
                  switch (request->req_type)
                  {
                  case REQ_create_database:
                  case REQ_ready:
                        string_type = "DPB";
                        if (PRETTY_print_cdb(request->req_blr, gen_blr, 0, 0))
                              CPR_error("internal error during parameter generation");
                        break;

                  case REQ_ddl:
                        string_type = "DYN";
                        if (PRETTY_print_dyn(request->req_blr, gen_blr, 0, 0))
                              CPR_error("internal error during dynamic DDL generation");
                        break;
                  case REQ_slice:
                        string_type = "SDL";
                        if (PRETTY_print_sdl(request->req_blr, gen_blr, 0, 0))
                              CPR_error("internal error during SDL generation");
                        break;

                  default:
                        string_type = "BLR";
                        if (fb_print_blr(request->req_blr, request->req_length, gen_blr, 0, 0))
                              CPR_error("internal error during BLR generation");
                  }
            }
            else
            {
                  switch (request->req_type)
                  {
                  case REQ_create_database:
                  case REQ_ready:
                        string_type = "DPB";
                        break;

                  case REQ_ddl:
                        string_type = "DYN";
                        break;
                  case REQ_slice:
                        string_type = "SDL";
                        break;

                  default:
                        string_type = "BLR";
                  }
            }
            printa(COMMENT, " ");
            printa(COMMENT, "END OF %s STRING FOR REQUEST isc_%d\n", string_type, request->req_ident);
      }

      // Print out slice description language if there are arrays associated with request

      for (const gpre_port* port = request->req_ports; port; port = port->por_next)
            for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
            {
                  if (reference->ref_sdl)
                  {
                        for (int begin_i = 0; begin_i < reference->ref_sdl_length;
                              begin_i = begin_i + (75 * sizeof(SLONG)))
                        {
                              const int end_i = MIN(reference->ref_sdl_length - 1,
                                                begin_i + (SLONG)(75 * sizeof(SLONG)) - 1);
                              printa(COLUMN, "DATA (isc_%d(ISC_I)%s ISC_I=%d,%d)  /",
                                       reference->ref_sdl_ident, COMMA,
                                       (begin_i / sizeof(SLONG)) + 1,
                                       (end_i / sizeof(SLONG)) + 1);
                              gen_raw(reference->ref_sdl, REQ_slice, reference->ref_sdl_length, begin_i, end_i);
                        }
                        if (!gpreGlob.sw_raw)
                        {
                              printa(COMMENT, " ");
                              if (PRETTY_print_sdl(reference->ref_sdl, gen_blr, 0, 0))
                                    CPR_error("internal error during SDL generation");
                              printa(COMMENT, " ");
                              printa(COMMENT, "END OF SDL STRING FOR REQUEST isc_%d\n", reference->ref_sdl_ident);
                        }
                  }
            }

      // Print out any blob parameter blocks required

      for (blb* blob = request->req_blobs; blob; blob = blob->blb_next)
            if (blob->blb_bpb_length)
            {
                  for (int begin_i = 0; begin_i < blob->blb_bpb_length; begin_i = begin_i + (75 * sizeof(SLONG)))
                  {
                        const int end_i =
                              MIN(blob->blb_bpb_length - 1, begin_i + (SLONG)(75 * sizeof(SLONG)) - 1);
                        printa(COLUMN, "DATA (isc_%d(ISC_I)%s ISC_I=%d,%d)  /",
                                 blob->blb_bpb_ident, COMMA,
                                 (begin_i / sizeof(SLONG)) + 1,
                                 (end_i / sizeof(SLONG)) + 1);
                        gen_raw(blob->blb_bpb, REQ_for, blob->blb_bpb_length, begin_i, end_i);
                        printa(COMMENT, " ");
                  }
            }
}


//____________________________________________________________
//
//          Generate definitions associated with a single request.
//

static void gen_request_decls( const gpre_req* request)
{
      if (!(request->req_flags & (REQ_exp_hand | REQ_sql_blob_open | REQ_sql_blob_create)) &&
            request->req_type != REQ_slice && request->req_type != REQ_procedure)
      {
            fprintf(gpreGlob.out_file, "%sINTEGER*4  %s             %s{ request handle }\n\n",
                        COLUMN, request->req_handle, INLINE_COMMENT);
      }
      // generate the request as BLR long words

      const int rlength = (request->req_length + (sizeof(SLONG) - 1)) / sizeof(SLONG);
      if (rlength)
      {
            fprintf(gpreGlob.out_file, "%sINTEGER*4      isc_%d(%d)    %s{ request BLR }\n",
                        COLUMN, request->req_ident, rlength, INLINE_COMMENT);
      }

      // Generate declarations for the slice description language

      for (const gpre_port* port = request->req_ports; port; port = port->por_next)
            for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
            {
                  if (reference->ref_sdl)
                  {
                        const int slength = (reference->ref_sdl_length + (sizeof(SLONG) - 1)) / sizeof(SLONG);
                        fprintf(gpreGlob.out_file, "%sINTEGER*4      isc_%d(%d)     %s{ request SDL }\n",
                                    COLUMN, reference->ref_sdl_ident, slength, INLINE_COMMENT);
                  }
            }

      // Print out any blob parameter block variable declarations required
      for (blb* blob = request->req_blobs; blob; blob = blob->blb_next)
            if (blob->blb_const_from_type)
            {
                  const int blength = (blob->blb_bpb_length + (sizeof(SLONG) - 1)) / sizeof(SLONG);
                  fprintf(gpreGlob.out_file, "%sINTEGER*4       isc_%d(%d)      %s{ blob parameter block }\n",
                              COLUMN, blob->blb_bpb_ident, blength, INLINE_COMMENT);
            }

      if (request->req_flags & REQ_sql_cursor)
            fprintf(gpreGlob.out_file, "%sINTEGER*4  isc_%dS             %s{ SQL statement handle }\n\n",
                        COLUMN, request->req_ident, INLINE_COMMENT);

      if (request->req_type == REQ_ready || request->req_type == REQ_create_database)
      {
            printa(COLUMN, "INTEGER*2  isc_%dl", request->req_ident);
            if (request->req_flags & REQ_extend_dpb)
                  printa(COLUMN, "INTEGER*4  isc_%dp", request->req_ident);
      }


      // If this is a GET_SLICE/PUT_slice, allocate some variables

      if (request->req_type == REQ_slice)
      {
            printa(COLUMN, "INTEGER*4 isc_%dv (%d)", request->req_ident,
                     MAX(request->req_slice->slc_parameters, 1));
            printa(COLUMN, "INTEGER*4  isc_%ds", request->req_ident);
      }
}


//____________________________________________________________
//
//          Generate receive call for a port
//          in a store2 statement.
//

static void gen_return_value(const act* action)
{
      const gpre_req* request = action->act_request;

      gen_start(action, request->req_primary);
      if (action->act_error || (action->act_flags & ACT_sql))
            printa(COLUMN, "END IF");

      const upd* update = (const upd*) action->act_object;
      const ref* reference = update->upd_references;
      gen_receive(action, reference->ref_port);
}


//____________________________________________________________
//
//          Process routine head.  If there are gpreGlob.requests in the
//          routine, insert local definitions.
//

static void gen_routine(const act* action)
{
      for (const gpre_req* request = (const gpre_req*) action->act_object; request;
             request = request->req_routine)
      {
            for (const gpre_port* port = request->req_ports; port; port = port->por_next)
                  make_port(port);
            for (blb* blob = request->req_blobs; blob; blob = blob->blb_next)
            {
                  fprintf(gpreGlob.out_file, "%sINTEGER*4 isc_%d         %s{ blob handle }\n",
                                 COLUMN, blob->blb_ident, INLINE_COMMENT);
                  fprintf(gpreGlob.out_file, "%sCHARACTER*%d isc_%d      %s{ blob segment }\n",
                                 COLUMN, blob->blb_seg_length, blob->blb_buff_ident, INLINE_COMMENT);
                  fprintf(gpreGlob.out_file, "%sINTEGER*2 isc_%d         %s{ segment length }\n",
                                 COLUMN, blob->blb_len_ident, INLINE_COMMENT);
            }
      }
}


//____________________________________________________________
//
//          Generate substitution text for END_STREAM.
//

static void gen_s_end(const act* action)
{
      const gpre_req* request = action->act_request;

      if (action->act_type == ACT_close)
            gen_cursor_close(request);

      printa(COLUMN, "CALL ISC_UNWIND_REQUEST (%s, %s, %s%s%s)",
               status_vector(),
               request->req_handle, VAL_1, request->req_request_level, VAL_2);

      if (action->act_type == ACT_close)
      {
            printa(COLUMN, "END IF");
            printa(COLUMN, "END IF");
      }

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate substitution text for FETCH.
//

static void gen_s_fetch(const act* action)
{
      const gpre_req* request = action->act_request;
      if (request->req_sync)
            gen_send(action, request->req_sync);

      gen_receive(action, request->req_primary);
}


//____________________________________________________________
//
//          Generate text to compile and start a stream.  This is
//          used both by START_STREAM and FOR
//

static void gen_s_start(const act* action)
{
      const gpre_req* request = action->act_request;

      gen_compile(action);

      const gpre_port* port = request->req_vport;
      if (port)
            asgn_from(action, port->por_references);

      if (action->act_type == ACT_open)
            gen_cursor_open(action, request);

      if (action->act_error || (action->act_flags & ACT_sql))
            make_ok_test(action, request);

      gen_start(action, port);

      if (action->act_error || (action->act_flags & ACT_sql))
            printa(COLUMN, "END IF");

      if (action->act_type == ACT_open)
      {
            printa(COLUMN, "END IF");
            printa(COLUMN, "END IF");
            printa(COLUMN, "END IF");
            status_and_stop(action);
      }
}


//____________________________________________________________
//
//          Substitute for a segment, segment length, or blob handle.
//

static void gen_segment(const act* action)
{
      blb* blob = (blb*) action->act_object;

      printa("", "%sisc_%d",
               (action->act_flags & ACT_first) ? COLUMN : CONTINUE,
               (action->act_type == ACT_segment) ? blob->blb_buff_ident :
               (action->act_type == ACT_segment_length) ? blob->blb_len_ident : blob->blb_ident);
      fputs(CONTINUE, gpreGlob.out_file);
}


//____________________________________________________________
//
//

static void gen_select(const act* action)
{
      SCHAR name[MAX_REF_SIZE];

      const gpre_req* request = action->act_request;
      const gpre_port* port = request->req_primary;
      gen_name(name, request->req_eof, true);

      gen_s_start(action);
      printa(COLUMN, "IF (SQLCODE .EQ. 0) THEN");
      gen_receive(action, port);
      printa(COLUMN, "IF (%s .NE. 0) THEN", name);
    gpre_nod* var_list = (gpre_nod*) action->act_object;
      if (var_list)
      {
            for (int i = 0; i < var_list->nod_count; ++i)
                  asgn_to(action, (const ref*) var_list->nod_arg[i]);
      }

      printa(COLUMN, "ELSE");
      printa(COLUMN, "SQLCODE = 100");
      printa(COLUMN, "END IF");
      printa(COLUMN, "END IF");
}


//____________________________________________________________
//
//          Generate a send call for a port.
//

static void gen_send(const act* action, const gpre_port* port)
{
      const gpre_req* request = action->act_request;
      sprintf(output_buffer, "%s CALL ISC_SEND (%s, %s, %s%d%s, %s%d%s, %sisc_%d%s, %s%s%s)\n",
                  COLUMN, status_vector(), request->req_handle, I2CONST_1,
                  port->por_msg_number, I2CONST_2, I2CONST_1, port->por_length,
                  I2CONST_2, REF_1, port->por_ident, REF_2, VAL_1,
                  request->req_request_level, VAL_2);

      FTN_print_buffer(output_buffer);

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate support for get/put slice statement.
//

static void gen_slice(const act* action)
{
      TEXT buffer[256], temp[64];
      const TEXT* pattern1 =
            "CALL ISC_GET_SLICE (%V1, %RF%DH%RE, %RF%RT%RE, %RF%FR%RE, %N1, \
%I1, %N2, %I1v, %I1s, %RF%S5%RE, %RF%S6%RE)";
      const TEXT* pattern2 =
            "CALL ISC_PUT_SLICE (%V1, %RF%DH%RE, %RF%RT%RE, %RF%FR%RE, %N1, \
%I1, %N2, %I1v, %I1s, %RF%S5%RE)";

      const gpre_req* request = action->act_request;
      const slc* slice = (slc*) action->act_object;
      const gpre_req* parent_request = slice->slc_parent_request;

      // Compute array size

      sprintf(buffer, "isc_%ds = %d", request->req_ident, slice->slc_field->fld_array->fld_length);

      const slc::slc_repeat* tail = slice->slc_rpt;
      for (const slc::slc_repeat* const end = tail + slice->slc_dimensions; tail < end; ++tail)
      {
            if (tail->slc_upper != tail->slc_lower)
            {
                  const ref* lower = (const ref*) tail->slc_lower->nod_arg[0];
                  const ref* upper = (const ref*) tail->slc_upper->nod_arg[0];
                  if (lower->ref_value)
                        sprintf(temp, " * ( %s - %s + 1)", upper->ref_value, lower->ref_value);
                  else
                        sprintf(temp, " * ( %s + 1)", upper->ref_value);
                  strcat(buffer, temp);
            }
      }
      printa(COLUMN, buffer);

      // Make assignments to variable vector

      const ref* reference;
      for (reference = request->req_values; reference; reference = reference->ref_next)
      {
            printa(COLUMN, "isc_%dv [%d] = %s;", request->req_ident, reference->ref_id,
                     reference->ref_value);
      }

      PAT args;
      args.pat_reference = slice->slc_field_ref;
      args.pat_request = parent_request;  // blob id request
      args.pat_vector1 = status_vector(); // status vector
      args.pat_database = parent_request->req_database;     // database handle
      args.pat_string1 = action->act_request->req_trans;    // transaction handle
      args.pat_value1 = request->req_length;    // slice descr. length
      args.pat_ident1 = request->req_ident;     // request name
      args.pat_value2 = slice->slc_parameters * sizeof(SLONG);    // parameter length

      reference = (const ref*) slice->slc_array->nod_arg[0];
      args.pat_string5 = reference->ref_value;  // array name
      args.pat_string6 = "isc_array_length";

      const SSHORT column = 6;

      PATTERN_expand(column, (action->act_type == ACT_get_slice) ? pattern1 : pattern2, &args);
}


//____________________________________________________________
//
//          Generate either a START or START_AND_SEND depending
//          on whether or a not a port is present.
//

static void gen_start(const act* action, const gpre_port* port)
{
      const gpre_req* request = action->act_request;
      const TEXT* vector = status_vector();

      if (port)
      {
            for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
            {
                  if (reference->ref_field-> fld_array_info)
                        gen_get_or_put_slice(action, reference, false);
            }

            sprintf(output_buffer,
                        "%sCALL ISC_START_AND_SEND (%s, %s, %s, %s%d%s, %s%d%s, %sisc_%d%s, %s%s%s)\n",
                        COLUMN, vector, request->req_handle,
                        request_trans(action, request),
                        I2CONST_1, port->por_msg_number, I2CONST_2,
                        I2CONST_1, port->por_length, I2CONST_2,
                        REF_1, port->por_ident, REF_2,
                        I2CONST_1, request->req_request_level, I2CONST_2);
      }
      else
            sprintf(output_buffer, "%sCALL ISC_START_REQUEST (%s, %s, %s, %s%s%s)\n",
                        COLUMN, vector, request->req_handle, request_trans(action, request),
                        I2CONST_1, request->req_request_level, I2CONST_2);

      FTN_print_buffer(output_buffer);

      status_and_stop(action);
}


//____________________________________________________________
//
//          Generate text for STORE statement.  This includes the compile
//          call and any variable initialization required.
//

static void gen_store(const act* action)
{
      TEXT name[MAX_REF_SIZE];

      const gpre_req* request = action->act_request;
      gen_compile(action);
      if (action->act_error || (action->act_flags & ACT_sql))
            make_ok_test(action, request);

      // Initialize any blob fields

      const gpre_port* port = request->req_primary;
      for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
      {
            const gpre_fld* field = reference->ref_field;
            if (field->fld_flags & FLD_blob)
                  printa(COLUMN, "CALL isc_qtoq (isc_blob_null, %s)", gen_name(name, reference, true));
      }
}


//____________________________________________________________
//
//          Generate substitution text for START_TRANSACTION.
//

static void gen_t_start(const act* action)
{
      // if this is a purely default transaction, just let it through
      gpre_tra* trans;
      if (!action || !(trans = (gpre_tra*) action->act_object))
      {
            t_start_auto(0, status_vector(), action, false);
            return;
      }

      // build a complete statement, including tpb's.  Ready db's as req.

      const tpb* tpb_iterator;
      if (gpreGlob.sw_auto)
            for (tpb_iterator = trans->tra_tpb; tpb_iterator; tpb_iterator = tpb_iterator->tpb_tra_next)
            {
                  const gpre_dbb* db = tpb_iterator->tpb_database;
                  const TEXT* filename = db->dbb_runtime;
                  if (filename || !(db->dbb_flags & DBB_sqlca))
                  {
                        printa(COLUMN, "IF (%s .EQ. 0) THEN", db->dbb_name->sym_string);
                        make_ready(db, filename, status_vector(), 0);
                        status_and_stop(action);
                        printa(COLUMN, "END IF");
                  }
            }

#ifdef HPUX
      // If this is HPUX we should be building a teb vector here
      // with the tpb address and length specified

      int count = 0;
      for (tpb_iterator = trans->tra_tpb; tpb_iterator; tpb_iterator = tpb_iterator->tpb_tra_next)
      {
            count++;
            const gpre_dbb* db = tpb_iterator->tpb_database;
            printa(COLUMN, "ISC_TEB%d_LEN = %d", count, tpb_iterator->tpb_length);
            printa(COLUMN, "ISC_TEB%d_TPB = ISC_BADDRESS (ISC_TPB_%d)",  count, tpb_iterator->tpb_ident);
            printa(COLUMN, "ISC_TEB%d_DBB = ISC_BADDRESS (%s)", count, db->dbb_name->sym_string);
      }

      printa(COLUMN, "CALL ISC_START_MULTIPLE (%s, %s, %d, ISC_TEB)",
               status_vector(),
               trans->tra_handle ? trans->tra_handle : "gds__trans",
               trans->tra_db_count);

#else

      printa(COLUMN, "CALL ISC_START_TRANSACTION (%s, %s, %s%d%s",
               status_vector(),
               trans->tra_handle ? trans->tra_handle : "GDS__TRANS",
               I2CONST_1, trans->tra_db_count, I2CONST_2);

      for (tpb_iterator = trans->tra_tpb; tpb_iterator; tpb_iterator = tpb_iterator->tpb_tra_next)
      {
            printa(CONTINUE, ", %s, %s%d%s, isc_tpb_%d",
                     tpb_iterator->tpb_database->dbb_name->sym_string,
                     I2CONST_1, tpb_iterator->tpb_length, I2CONST_2,
                     tpb_iterator->tpb_ident);
      }

      printa(CONTINUE, ")");
#endif

      status_and_stop(action);
}


//____________________________________________________________
//
//          Initialize a TPB in the output file
//

static void gen_tpb_data(const tpb* tpb_buffer)
{
      union {
            UCHAR bytewise_tpb[4];
            SLONG longword_tpb;
      } tpb_hunk;

      // TPBs are generated as raw BLR in longword chunks
      // because FORTRAN is a miserable excuse for a language
      // and doesn't allow byte value assignments to character
      // fields.

      int length = (tpb_buffer->tpb_length + (sizeof(SLONG) - 1)) / sizeof(SLONG);

      printa(COLUMN, "DATA ISC_TPB_%d  /", tpb_buffer->tpb_ident, COMMA, length);

      const UCHAR* text = tpb_buffer->tpb_string;
      length = tpb_buffer->tpb_length;
      strcpy(output_buffer, CONTINUE);

      TEXT* p;
      for (p = output_buffer; *p; p++);

      while (length)
      {
            for (UCHAR* c = tpb_hunk.bytewise_tpb; c < tpb_hunk.bytewise_tpb + sizeof(SLONG); c++)
            {
                  *c = *text++;
                  if (!--length)
                        break;
            }
            if (length)
                  sprintf(p, "%"SLONGFORMAT",", tpb_hunk.longword_tpb);
            else
                  sprintf(p, "%"SLONGFORMAT"/\n", tpb_hunk.longword_tpb);
            p += 12; // ???
      }

      FTN_print_buffer(output_buffer);
      sprintf(output_buffer, "%sEnd of data for ISC_TPB_%d\n", COMMENT, tpb_buffer->tpb_ident);
      FTN_print_buffer(output_buffer);
}


//____________________________________________________________
//
//          Generate the declaration for a
//       TPB in the output file
//

static void gen_tpb_decls(const tpb* tpb_buffer)
{
      const int length = (tpb_buffer->tpb_length + (sizeof(SLONG) - 1)) / sizeof(SLONG);
      fprintf(gpreGlob.out_file, "%sINTEGER*4      ISC_TPB_%d(%d)    %s{ transaction parameters }\n",
                     COLUMN, tpb_buffer->tpb_ident, length, INLINE_COMMENT);
}


//____________________________________________________________
//
//          Generate substitution text for COMMIT, ROLLBACK, PREPARE, and SAVE
//

static void gen_trans(const act* action)
{
      const char* tranText = action->act_object ? (const TEXT*) action->act_object : "GDS__TRANS";

      switch (action->act_type)
      {
      case ACT_commit_retain_context:
            printa(COLUMN, "CALL ISC_COMMIT_RETAINING (%s, %s)", status_vector(), tranText);
            break;
      case ACT_rollback_retain_context:
            printa(COLUMN, "CALL ISC_ROLLBACK_RETAINING (%s, %s)", status_vector(), tranText);
            break;
      default:
            printa(COLUMN, "CALL ISC_%s_TRANSACTION (%s, %s)",
                     (action->act_type == ACT_commit) ?
                              "COMMIT" : (action->act_type == ACT_rollback) ? "ROLLBACK" : "PREPARE",
                        status_vector(), tranText);
      }

      status_and_stop(action);

}


//____________________________________________________________
//
//          Generate substitution text for UPDATE ... WHERE CURRENT OF ...
//

static void gen_update(const act* action)
{
      const upd* modify = (const upd*) action->act_object;
      const gpre_port* port = modify->upd_port;
      asgn_from(action, port->por_references);
      gen_send(action, port);
}


//____________________________________________________________
//
//          Substitute for a variable reference.
//

static void gen_variable(const act* action)
{
      SCHAR s[MAX_REF_SIZE];
      const ref* reference = (const ref*) action->act_object;
      printa("", "%s%s", (action->act_flags & ACT_first) ? COLUMN : CONTINUE,
               gen_name(s, reference, false));

      fputs(CONTINUE, gpreGlob.out_file);
}


//____________________________________________________________
//
//          Generate tests for any WHENEVER clauses that may have been declared.
//

static void gen_whenever(const swe* label)
{
      const TEXT* condition = NULL;

      while (label)
      {
            switch (label->swe_condition)
            {
            case SWE_error:
                  condition = "SQLCODE .LT. 0";
                  break;

            case SWE_warning:
                  condition = "SQLCODE .EQ. 0 .AND. SQLCODE .NE. 100";
                  break;

            case SWE_not_found:
                  condition = "SQLCODE .EQ. 100";
                  break;

            default:
                  // condition undefined
                  fb_assert(false);
                  return;
            }
            printa(COLUMN, "if (%s) goto %s", condition, label->swe_label);
            label = label->swe_next;
      }
}

//____________________________________________________________
//
//          Generate a declaration of an array in the
//       output file.
//

static void make_array_declaration( const ref* reference)
{
      const gpre_fld* field = reference->ref_field;
      const SCHAR* const name = field->fld_symbol->sym_string;

      // Check to see if the array already has been
      // declared in this routine or subroutine
      if (array_decl_list)
      {
            for (adl* loop_array = array_decl_list; loop_array; loop_array = loop_array->adl_next)
            {
                  if (field->fld_array_info->ary_ident == loop_array->adl_gds_ident)
                  {
                        return;
                  }
        }
    }

      // If not, add it to the "declared" list and declare it
      adl* this_array = (adl*) MSC_alloc(ADL_LEN);
      this_array->adl_gds_ident = field->fld_array_info->ary_ident;
      if (array_decl_list)
            this_array->adl_next = array_decl_list;
      else
            this_array->adl_next = NULL;
      array_decl_list = this_array;

      switch (field->fld_array_info->ary_dtype)
      {
      case dtype_short:
            fprintf(gpreGlob.out_file, "%sINTEGER*2%s", COLUMN, COLUMN);
            break;

      case dtype_long:
            fprintf(gpreGlob.out_file, "%sINTEGER*4%s", COLUMN, COLUMN);
            break;

      case dtype_date:
      case dtype_blob:
      case dtype_quad:
            fprintf(gpreGlob.out_file, "%sINTEGER*4%s", COLUMN, COLUMN);
            break;

      case dtype_text:
            fprintf(gpreGlob.out_file, "%sCHARACTER*%d%s", COLUMN, field->fld_array->fld_length, COLUMN);
            break;

      case dtype_real:
            fprintf(gpreGlob.out_file, "%sREAL%s", COLUMN, COLUMN);
            break;

      case dtype_double:
            fprintf(gpreGlob.out_file, "%s%s%s", COLUMN, DOUBLE_DCL, COLUMN);
            break;

      default:
          {
                  TEXT s[64];
                  sprintf(s, "datatype %d unknown\n", field->fld_dtype);
                  CPR_error(s);
                  return;
            }
      }

      // Print out the dimension part of the declaration
      fprintf(gpreGlob.out_file, "isc_%d", field->fld_array_info->ary_ident);
      fprintf(gpreGlob.out_file, "(");

      for (dim* dimension = field->fld_array_info->ary_dimension; dimension;
            dimension = dimension->dim_next)
      {
            if (dimension->dim_lower != 1)
                  fprintf(gpreGlob.out_file, "%"SLONGFORMAT":", dimension->dim_lower);

            fprintf(gpreGlob.out_file, "%"SLONGFORMAT, dimension->dim_upper);
            if (dimension->dim_next)
                  fprintf(gpreGlob.out_file, ", ");
      }

      if (field->fld_dtype == dtype_quad || field->fld_dtype == dtype_date)
            fprintf(gpreGlob.out_file, ",2");

      // Print out the database field

      fprintf(gpreGlob.out_file, ")        %s{ %s }\n", INLINE_COMMENT, name);
}


//____________________________________________________________
//
//          Turn a symbol into a varying string.
//

static TEXT* make_name( TEXT* const string, const gpre_sym* symbol)
{
      fb_utils::snprintf(string, MAX_CURSOR_SIZE, "%s'%s '%s", REF_1, symbol->sym_string, REF_2);

      return string;
}


//____________________________________________________________
//
//          Generate code to test existence of compiled request with
//          active transaction
//

static void make_ok_test(const act* action, const gpre_req* request)
{
      if (gpreGlob.sw_auto)
            printa(COLUMN, "IF (%s .NE. 0 .AND. %s .NE. 0) THEN",
                     request_trans(action, request), request->req_handle);
      else
            printa(COLUMN, "IF (%s .NE. 0) THEN", request->req_handle);
}


//____________________________________________________________
//
//          Insert a port record description in output.
//

static void make_port( const gpre_port* port)
{
      const USHORT length = (port->por_length + 3) & ~3;
      printa(COLUMN, "CHARACTER      isc_%d(%d)", port->por_ident, length);

      const ref* reference;
      for (reference = port->por_references; reference; reference = reference->ref_next)
      {
            const gpre_fld* field = reference->ref_field;
            const gpre_sym* symbol = field->fld_symbol;
            const SCHAR* name;
            if (symbol)
                  name = symbol->sym_string;
            else
                  name = "<expression>";
            if (reference->ref_value && (reference->ref_flags & REF_array_elem))
                  field = field->fld_array;

            switch (field->fld_dtype)
            {
            case dtype_short:
                  fprintf(gpreGlob.out_file, "%sINTEGER*2      isc_%d      %s{ %s }\n",
                                 COLUMN, reference->ref_ident, INLINE_COMMENT, name);
                  break;

            case dtype_long:
                  fprintf(gpreGlob.out_file, "%sINTEGER*4      isc_%d      %s{ %s }\n",
                                 COLUMN, reference->ref_ident, INLINE_COMMENT, name);
                  break;

            case dtype_cstring:
            case dtype_text:
                  fprintf(gpreGlob.out_file, "%sCHARACTER*%d   isc_%d      %s{ %s }\n",
                                 COLUMN, field->fld_length, reference->ref_ident, INLINE_COMMENT, name);
                  break;

            case dtype_date:
            case dtype_quad:
            case dtype_blob:
                  fprintf(gpreGlob.out_file, "%sINTEGER*4      isc_%d(2)   %s{ %s }\n",
                                 COLUMN, reference->ref_ident, INLINE_COMMENT, name);
                  break;

            case dtype_real:
                  fprintf(gpreGlob.out_file, "%sREAL          isc_%d      %s{ %s }\n",
                                 COLUMN, reference->ref_ident, INLINE_COMMENT, name);
                  break;

            case dtype_double:
                  fprintf(gpreGlob.out_file, "%s%s         isc_%d      %s{ %s }\n",
                                 COLUMN, DOUBLE_DCL, reference->ref_ident, INLINE_COMMENT, name);
                  break;

            default:
                {
                      SCHAR s[ERROR_LENGTH];
                        fb_utils::snprintf(s, sizeof(s), "datatype %d unknown for field %s, msg %d",
                                    field->fld_dtype, name, port->por_msg_number);
                        CPR_error(s);
                        return;
                  }
            }
      }

      for (reference = port->por_references; reference; reference = reference->ref_next)
      {
            printa(COLUMN, "EQUIVALENCE    (isc_%d(%d), isc_%d)",
                     port->por_ident, reference->ref_offset + 1,
                     reference->ref_ident);
      }

      printa(COLUMN, " ");
}


//____________________________________________________________
//
//          Generate the actual ready call.
//

static void make_ready(const gpre_dbb* db, const TEXT* filename, const TEXT* vector, const gpre_req* request)
{
      TEXT s1[32], s2[32];

      if (request)
      {
            sprintf(s1, "isc_%dl", request->req_ident);

            if (request->req_flags & REQ_extend_dpb)
                  sprintf(s2, "isc_%dp", request->req_ident);
            else
                  sprintf(s2, "isc_%d", request->req_ident);
            // if the dpb needs to be extended at runtime to include items
            // in host variables, do so here; this assumes that there is
            // always a request generated for runtime variables

            if (request->req_flags & REQ_extend_dpb)
            {
                  if (request->req_length)
                  {
                        sprintf(output_buffer, "%s%s = isc_%d\n", COLUMN, s2, request->req_ident);
                        FTN_print_buffer(output_buffer);
                  }
                  // MMM
                  else
                  {
                        sprintf(output_buffer, "%s%s = 0\n", COLUMN, s2);
                        FTN_print_buffer(output_buffer);
                  }

                  if (db->dbb_r_user)
                  {
                        sprintf(output_buffer,
                                    "%sCALL ISC_MODIFY_DPB (%s, %s, isc_dpb_user_name, %s, %sLEN(%s)%s)\n",
                                    COLUMN, s2, s1, db->dbb_r_user,
                                    I2CONST_1, db->dbb_r_user, I2CONST_2);
                        FTN_print_buffer(output_buffer);
                  }
                  if (db->dbb_r_password)
                  {
                        sprintf(output_buffer,
                                    "%sCALL ISC_MODIFY_DPB (%s, %s, isc_dpb_password, %s, %sLEN(%s)%s)\n",
                                    COLUMN, s2, s1, db->dbb_r_password,
                                    I2CONST_1, db->dbb_r_password, I2CONST_2);
                        FTN_print_buffer(output_buffer);
                  }

                  // SQL Role supports GPRE/Fortran
                  if (db->dbb_r_sql_role)
                  {
                        sprintf(output_buffer,
                                    "%sCALL ISC_MODIFY_DPB (%s, %s, isc_dpb_sql_role_name, %s, %sLEN(%s)%s)\n",
                                    COLUMN, s2, s1, db->dbb_r_sql_role,
                                    I2CONST_1, db->dbb_r_sql_role, I2CONST_2);
                        FTN_print_buffer(output_buffer);
                  }

                  if (db->dbb_r_lc_messages)
                  {
                        sprintf(output_buffer,
                                    "%sCALL ISC_MODIFY_DPB(%s, %s, isc_dpb_lc_messages, %s, %sLEN(%s)%s)\n",
                                    COLUMN, s2, s1, db->dbb_r_lc_messages,
                                    I2CONST_1, db->dbb_r_lc_messages, I2CONST_2);
                        FTN_print_buffer(output_buffer);
                  }
                  if (db->dbb_r_lc_ctype)
                  {
                        sprintf(output_buffer,
                                    "%sCALL ISC_MODIFY_DPB (%s, %s, isc_dpb_lc_type, %s, %sLEN(%s)%s)\n",
                                    COLUMN, s2, s1, db->dbb_r_lc_ctype,
                                    I2CONST_1, db->dbb_r_lc_ctype, I2CONST_2);
                        FTN_print_buffer(output_buffer);
                  }
            }
      }

      if (filename)
      {
            sprintf(output_buffer, "%sISC_%s = %s\n", COLUMN, db->dbb_name->sym_string, filename);
            FTN_print_buffer(output_buffer);

            sprintf(output_buffer,
                        "%sCALL ISC_ATTACH_DATABASE (%s, %sLEN(%s)%s, %sISC_%s%s, %s, %s%s%s, %s)\n",
                        COLUMN, vector, I2CONST_1, filename, I2CONST_2,
                        REF_1, db->dbb_name->sym_string, REF_2,
                        db->dbb_name->sym_string, I2CONST_1,
                        (request ? s1 : "0"), I2CONST_2, (request ? s2 : "0"));
            FTN_print_buffer(output_buffer);
      }
      else
      {
            sprintf(output_buffer, "%sISC_%s = '%s'\n", COLUMN, db->dbb_name->sym_string, db->dbb_filename);
            FTN_print_buffer(output_buffer);

            sprintf(output_buffer,
                        "%sCALL ISC_ATTACH_DATABASE (%s, %sLEN('%s')%s, %sISC_%s%s, %s, %s%s%s, %s)\n",
                        COLUMN, vector, I2CONST_1, db->dbb_filename, I2CONST_2,
                        REF_1, db->dbb_name->sym_string, REF_2,
                        db->dbb_name->sym_string, I2CONST_1,
                        (request ? s1 : "0"), I2CONST_2, (request ? s2 : "0"));
            FTN_print_buffer(output_buffer);
      }
      if (request && request->req_flags & REQ_extend_dpb)
      {
            if (request->req_length)
            {
                  sprintf(output_buffer, "%sif (%s != isc_%d)\n", COLUMN, s2, request->req_ident);
                  FTN_print_buffer(output_buffer);
            }
            sprintf(output_buffer, "%sCALL ISC_FREE (%s)\n", COLUMN, s2);
            FTN_print_buffer(output_buffer);

            // reset the length of the dpb

            sprintf(output_buffer, "%s%s = %d\n", COLUMN, s1, request->req_length);
            FTN_print_buffer(output_buffer);
      }
}


//____________________________________________________________
//
//          Looks at the label bitmap and allocates
//       an unused label.  Marks the current
//       label as used.
//

static USHORT next_label()
{
      UCHAR* byte = gpreGlob.fortran_labels;
      while (*byte == 255)
            ++byte;

      USHORT label = ((byte - gpreGlob.fortran_labels) << 3);

      for (UCHAR target_byte = *byte; target_byte & 1; target_byte >>= 1)
            label++;

      *byte |= 1 << (label & 7);

      return label;
}


//____________________________________________________________
//
//          Print a fixed string at a particular COLUMN.
//

static void printa(const TEXT* column, const TEXT* string, ...)
{
      va_list ptr;
      SCHAR s[256];

      va_start(ptr, string);
      strcpy(s, column);
      strcat(s, string);
      strcat(s, "\n");
      vsprintf(output_buffer, s, ptr);
      va_end(ptr);
      FTN_print_buffer(output_buffer);
}


//____________________________________________________________
//
//          Generate the appropriate transaction handle.
//

static const TEXT* request_trans(const act* action, const gpre_req* request)
{
      if (action->act_type == ACT_open)
      {
            const TEXT* trname = ((open_cursor*) action->act_object)->opn_trans;
            if (!trname)
                  trname = "GDS__TRANS";
            return trname;
      }

      return request ? request->req_trans : "GDS__TRANS";
}


//____________________________________________________________
//
//          Do the error handling ourselves
//       until we figure out how to use the
//       ISC_NULL from FORTRAN
//

static void status_and_stop(const act* action)
{
      if (action && (action->act_flags & ACT_sql))
            printa(COLUMN, "SQLCODE = ISC_SQLCODE (ISC_STATUS)");
      else if (!action || !action->act_error)
      {
            printa(COLUMN, "IF (ISC_STATUS(2) .NE. 0) THEN");
            printa(COLUMN, "    CALL ISC_PRINT_STATUS (ISC_STATUS)");
            printa(COLUMN, "    STOP");
            printa(COLUMN, "END IF");
      }
}


//____________________________________________________________
//
//          Generate the appropriate status vector parameter for a gds
//          call depending on where or not the action has an error clause.
//

static const TEXT* status_vector() //(const act* action)
{
      return "ISC_STATUS";
//    return (!action || !action->act_error) ? "ISC_NULL" : "ISC_STATUS";
}


//____________________________________________________________
//
//          Generate substitution text for START_TRANSACTION,
//       when it's being generated automatically by a compile
//       call or one of the DDL commands.  Be careful not to
//          continue after errors as that destroys evidence.
//

static void t_start_auto(const gpre_req* request, const TEXT* vector, const act* action, bool test)
{
      TEXT buffer[256], temp[40];
      buffer[0] = 0;
      const TEXT* trname = request_trans(action, request);

      // this is a default transaction, make sure all databases are ready

      int count = 0;
      for (const gpre_dbb* db = gpreGlob.isc_databases; db; db = db->dbb_next)
      {
            if (gpreGlob.sw_auto)
            {
                  const TEXT* filename = db->dbb_runtime;
                  if (filename || !(db->dbb_flags & DBB_sqlca))
                  {
                        if (buffer[0])
                              printa(COLUMN, "IF (%s .EQ. 0 .AND. %s(2) .EQ. 0) THEN",
                                       db->dbb_name->sym_string, vector);
                        else
                              printa(COLUMN, "IF (%s .EQ. 0) THEN", db->dbb_name->sym_string);
                        make_ready(db, filename, vector, 0);
                        printa(COLUMN, "END IF");
                        if (buffer[0])
                              strcat(buffer, " .AND. ");
                        sprintf(temp, "%s .NE. 0", db->dbb_name->sym_string);
                        strcat(buffer, temp);
                  }
            }

            count++;
#ifdef HPUX
            printa(COLUMN, "ISC_TEB%d_LEN = 0", count);
            printa(COLUMN, "ISC_TEB%d_TPB = ISC_NULL", count);
            printa(COLUMN, "ISC_TEB%d_DBB = ISC_BADDRESS (%s)", count, db->dbb_name->sym_string);
#endif
      }

      if (gpreGlob.sw_auto)
      {
            if (!buffer[0])
                  strcpy(buffer, ".TRUE.");
            if (test)
                  printa(COLUMN, "IF ((%s) .AND. (%s .EQ. 0)) THEN", buffer, trname);
            else
                  printa(COLUMN, "IF (%s) THEN", buffer);
      }

#ifdef HPUX
      printa(COLUMN_INDENT, "CALL ISC_START_MULTIPLE (%s, %s, %s%d%s, ISC_TEB)",
               vector, trname, I2CONST_1, count, I2CONST_2);
#else
      printa(COLUMN_INDENT, "CALL ISC_START_TRANSACTION (%s, %s, %s%d%s",
               vector, trname, I2CONST_1, count, I2CONST_2);

      for (const gpre_dbb* db2 = gpreGlob.isc_databases; db2; db2 = db2->dbb_next)
      {
            printa(CONTINUE, ", %s, %s0%s, 0", db2->dbb_name->sym_string, I2CONST_1, I2CONST_2);
      }
      printa(CONTINUE, ")");
#endif

      if (gpreGlob.sw_auto)
            printa(COLUMN, "END IF");

      status_and_stop(action);
}

#ifdef NOT_USED_OR_REPLACED
// RRK_?: this column stuff was not used in 3.3
// may be should not bother with it now
//____________________________________________________________
//
//          Align output to a specific column for output.  If the
//          column is negative, don't do anything.
//

static void align( int column)
{
      if (column < 0)
            return;

      putc('\n', gpreGlob.out_file);

      for (int i = column / 8; i; --i)
            putc('\t', gpreGlob.out_file);

      for (int i = column % 8; i; --i)
            putc(' ', gpreGlob.out_file);
}
#endif // RRK_?: end of comment out

//____________________________________________________________
//
//          Generate a function call for free standing ANY.  Somebody else
//          will need to generate the actual function.
//

static void gen_any(const act* action)
{
      const gpre_req* request = action->act_request;

      fprintf(gpreGlob.out_file, "%s%s_r (&%s, &%s", COLUMN,
                     request->req_handle, request->req_handle, request->req_trans);

      const gpre_port* port = request->req_vport;
      if (port)
      {
            for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
            {
                  fprintf(gpreGlob.out_file, ", %s", reference->ref_value);
            }
      }

      fprintf(gpreGlob.out_file, ")");
}

//____________________________________________________________
//
//          Zap all know handles.
//

static void gen_clear_handles() //const act* action)
{
      for (const gpre_req* request = gpreGlob.requests; request; request = request->req_next)
      {
            if (!(request->req_flags & REQ_exp_hand))
                  printa("%s%s = 0;", COLUMN, request->req_handle);
      }
}

#ifdef NOT_USED_OR_REPLACED
//____________________________________________________________
//
//          Generate a symbol to ease compatibility with V3.
//

static void gen_compatibility_symbol(const TEXT* symbol, const TEXT* v4_prefix, const TEXT* trailer)
{
      // CVC: always the same prefix? Function not used, so no problem. :-)
      const char* v3_prefix = isLangCpp(gpreGlob.sw_language) ? "isc_" : "isc_";

      fprintf(gpreGlob.out_file, "#define %s%s\t%s%s%s\n", v3_prefix, symbol, v4_prefix, symbol, trailer);
}
#endif

//____________________________________________________________
//
//          Generate a function for free standing ANY or statistical.
//

static void gen_function(const act* function)
{
      const act* action = (const act*) function->act_object;

      if (action->act_type != ACT_any)
      {
            CPR_error("can't generate function");
            return;
      }

      const gpre_req* request = action->act_request;

      fprintf(gpreGlob.out_file, "static %s_r (request, transaction", request->req_handle);

      TEXT s[MAX_REF_SIZE];
    const gpre_port* port = request->req_vport;
      if (port)
      {
            for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
            {
                  fprintf(gpreGlob.out_file, ", %s", gen_name(s, reference->ref_source, true));
            }
      }

      fprintf(gpreGlob.out_file, ")\n    isc_req_handle\trequest;\n    isc_tr_handle\ttransaction;\n");

      if (port)
      {
            for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
            {
                  const gpre_fld* field = reference->ref_field;
                  const TEXT* dtype = NULL;

                  switch (field->fld_dtype)
                  {
                  case dtype_short:
                        dtype = "short";
                        break;

                  case dtype_long:
                        // RRK_?:         dtype = DCL_LONG;
                        break;

                  case dtype_cstring:
                  case dtype_text:
                        dtype = "char*";
                        break;

                  case dtype_quad:
                        //dtype = DCL_QUAD;
                        break;

                  case dtype_date:
                  case dtype_blob:
                        dtype = "ISC_QUAD";
                        break;

                  case dtype_real:
                        dtype = "float";
                        break;

                  case dtype_double:
                        dtype = "double";
                        break;

                  default:
                        CPR_error("gen_function: unsupported datatype");
                        return;
                  }
                  fprintf(gpreGlob.out_file, "    %s\t%s;\n", dtype,
                              gen_name(s, reference->ref_source, true));
            }
      }

      fprintf(gpreGlob.out_file, "{\n");
      for (port = request->req_ports; port; port = port->por_next)
            make_port(port);

      fprintf(gpreGlob.out_file, "\n\n");
      gen_s_start(action);
      gen_receive(action, request->req_primary);

      for (port = request->req_ports; port; port = port->por_next)
      {
            for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
            {
                  if (reference->ref_field-> fld_array_info)
                        gen_get_or_put_slice(action, reference, true);
            }
      }

      port = request->req_primary;
      fprintf(gpreGlob.out_file, "\nreturn %s;\n}\n", gen_name(s, port->por_references, true));
}

//____________________________________________________________
//
//          Substitute for a variable reference.
//

static void gen_type(const act* action)
{
      // CVC: If I'm not mistaken, assumes sizeof(long) == sizeof(ref*)
      printa("%s%ld", COLUMN, action->act_object);
}

#ifdef NOT_USED_OR_REPLACED
//____________________________________________________________
//
//          Print a fixed string at a particular column.
//

static void printb(const TEXT* string, ...)
{
      va_list ptr;

      va_start(ptr, string);
      vfprintf(gpreGlob.out_file, string, ptr);
      va_end(ptr);
}
#endif


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