mirror of
https://github.com/FirebirdSQL/firebird.git
synced 2025-01-26 10:43:03 +01:00
470 lines
9.1 KiB
C++
470 lines
9.1 KiB
C++
//____________________________________________________________
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//
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// PROGRAM: Language Preprocessor
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// MODULE: pat.cpp
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// DESCRIPTION: Code generator pattern generator
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//
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// The contents of this file are subject to the Interbase Public
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// License Version 1.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy
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// of the License at http://www.Inprise.com/IPL.html
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//
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// Software distributed under the License is distributed on an
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// "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
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// or implied. See the License for the specific language governing
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// rights and limitations under the License.
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//
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// The Original Code was created by Inprise Corporation
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// and its predecessors. Portions created by Inprise Corporation are
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// Copyright (C) Inprise Corporation.
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//
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// All Rights Reserved.
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// Contributor(s): ______________________________________.
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//
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//
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//____________________________________________________________
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//
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//
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#include "firebird.h"
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#include <stdio.h>
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#include <string.h>
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#include "../gpre/gpre.h"
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#include "../gpre/pat.h"
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#include "../gpre/gpre_proto.h"
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#include "../gpre/pat_proto.h"
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#include "../gpre/lang_proto.h"
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enum pat_t {
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NL,
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RH, RL, RT, RI, RS, // Request handle, level, transaction, ident, length
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DH, DF, // Database handle, filename
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TH, // Transaction handle
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BH, BI, // Blob handle, blob_ident
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FH, // Form handle
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V1, V2, // Status vectors
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I1, I2, // Identifier numbers
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RF, RE, // OS- and language-dependent REF and REF-end character
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VF, VE, // OS- and language-dependent VAL and VAL-end character
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S1, S2, S3, S4, S5, S6, S7,
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// Arbitrary strings
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N1, N2, N3, N4, // Arbitrary number (SSHORT)
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L1, L2, // Arbitrary number (SLONG)
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PN, PL, PI, // Port number, port length, port ident
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QN, QL, QI, // Second port number, port length, port ident
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IF, EL, EN, // If, else, end
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FR // Field reference
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};
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static const struct ops
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{
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pat_t ops_type;
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TEXT ops_string[3];
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} operators[] =
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{
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{ RH, "RH" },
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{ RL, "RL" },
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{ RT, "RT" },
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{ RI, "RI" },
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{ RS, "RS" },
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{ DH, "DH" },
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{ DF, "DF" },
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{ TH, "TH" },
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{ BH, "BH" },
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{ BI, "BI" },
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{ FH, "FH" },
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{ V1, "V1" },
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{ V2, "V2" },
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{ I1, "I1" },
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{ I2, "I2" },
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{ S1, "S1" },
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{ S2, "S2" },
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{ S3, "S3" },
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{ S4, "S4" },
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{ S5, "S5" },
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{ S6, "S6" },
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{ S7, "S7" },
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{ N1, "N1" },
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{ N2, "N2" },
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{ N3, "N3" },
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{ N4, "N4" },
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{ L1, "L1" },
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{ L2, "L2" },
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{ PN, "PN" },
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{ PL, "PL" },
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{ PI, "PI" },
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{ QN, "QN" },
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{ QL, "QL" },
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{ QI, "QI" },
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{ IF, "IF" },
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{ EL, "EL" },
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{ EN, "EN" },
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{ RF, "RF" },
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{ RE, "RE" },
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{ VF, "VF" },
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{ VE, "VE" },
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{ FR, "FR" },
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{ NL, "" }
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};
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//____________________________________________________________
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//
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// Expand a pattern.
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//
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void PATTERN_expand( USHORT column, const TEXT* pattern, PAT* args)
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{
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// CVC: kudos to the programmer that had chosen variables with the same
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// names that structs in gpre.h and with type char* if not enough.
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// Renamed ref to lang_ref and val to lang_val.
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const TEXT* lang_ref = "";
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const TEXT* refend = "";
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const TEXT* lang_val = "";
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const TEXT* valend = "";
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if ((gpreGlob.sw_language == lang_c) || (isLangCpp(gpreGlob.sw_language)))
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{
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lang_ref = "&";
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refend = "";
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}
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else if (gpreGlob.sw_language == lang_pascal)
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{
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lang_ref = "%%REF ";
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refend = "";
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}
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else if (gpreGlob.sw_language == lang_cobol)
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{
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lang_ref = "BY REFERENCE ";
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refend = "";
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lang_val = "BY VALUE ";
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valend = "";
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}
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else if (gpreGlob.sw_language == lang_fortran)
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{
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#if (defined AIX || defined AIX_PPC)
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lang_ref = "%REF(";
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refend = ")";
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lang_val = "%VAL(";
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valend = ")";
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#endif
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}
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TEXT buffer[512];
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TEXT* p = buffer;
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*p++ = '\n';
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bool sw_gen = true;
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for (USHORT n = column; n; --n)
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*p++ = ' ';
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SSHORT value; // value needs to be signed since some of the
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// values printed out are signed.
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SLONG long_value;
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TEXT c;
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while (c = *pattern++)
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{
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if (c != '%')
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{
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if (sw_gen)
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{
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*p++ = c;
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if ((c == '\n') && (*pattern))
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for (USHORT n = column; n; --n)
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*p++ = ' ';
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}
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continue;
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}
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bool sw_ident = false;
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const TEXT* string = NULL;
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const ref* reference = NULL;
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bool handle_flag = false, long_flag = false;
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const ops* oper_iter;
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for (oper_iter = operators; oper_iter->ops_type != NL; oper_iter++)
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{
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if (oper_iter->ops_string[0] == pattern[0] && oper_iter->ops_string[1] == pattern[1])
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{
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break;
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}
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}
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pattern += 2;
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switch (oper_iter->ops_type)
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{
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case IF:
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sw_gen = args->pat_condition;
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continue;
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case EL:
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sw_gen = !sw_gen;
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continue;
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case EN:
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sw_gen = true;
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continue;
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case RH:
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handle_flag = true;
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string = args->pat_request->req_handle;
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break;
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case RL:
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string = args->pat_request->req_request_level;
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break;
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case RS:
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value = args->pat_request->req_length;
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break;
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case RT:
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handle_flag = true;
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string = args->pat_request->req_trans;
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break;
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case RI:
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long_value = args->pat_request->req_ident;
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long_flag = true;
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sw_ident = true;
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break;
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case DH:
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handle_flag = true;
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string = args->pat_database->dbb_name->sym_string;
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break;
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case DF:
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string = args->pat_database->dbb_filename;
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break;
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case PN:
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value = args->pat_port->por_msg_number;
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break;
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case PL:
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value = args->pat_port->por_length;
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break;
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case PI:
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long_value = args->pat_port->por_ident;
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long_flag = true;
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sw_ident = true;
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break;
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case QN:
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value = args->pat_port2->por_msg_number;
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break;
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case QL:
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value = args->pat_port2->por_length;
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break;
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case QI:
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long_value = args->pat_port2->por_ident;
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long_flag = true;
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sw_ident = true;
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break;
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case BH:
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long_value = args->pat_blob->blb_ident;
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long_flag = true;
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sw_ident = true;
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break;
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case I1:
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long_value = args->pat_ident1;
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long_flag = true;
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sw_ident = true;
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break;
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case I2:
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long_value = args->pat_ident2;
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long_flag = true;
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sw_ident = true;
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break;
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case S1:
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string = args->pat_string1;
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break;
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case S2:
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string = args->pat_string2;
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break;
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case S3:
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string = args->pat_string3;
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break;
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case S4:
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string = args->pat_string4;
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break;
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case S5:
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string = args->pat_string5;
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break;
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case S6:
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string = args->pat_string6;
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break;
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case S7:
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string = args->pat_string7;
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break;
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case V1:
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string = args->pat_vector1;
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break;
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case V2:
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string = args->pat_vector2;
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break;
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case N1:
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value = args->pat_value1;
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break;
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case N2:
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value = args->pat_value2;
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break;
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case N3:
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value = args->pat_value3;
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break;
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case N4:
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value = args->pat_value4;
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break;
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case L1:
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long_value = args->pat_long1;
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long_flag = true;
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break;
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case L2:
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long_value = args->pat_long2;
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long_flag = true;
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break;
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case RF:
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string = lang_ref;
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break;
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case RE:
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string = refend;
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break;
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case VF:
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string = lang_val;
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break;
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case VE:
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string = valend;
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break;
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case FR:
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reference = args->pat_reference;
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break;
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default:
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sprintf(buffer, "Unknown substitution \"%c%c\"", pattern[-2], pattern[-1]);
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CPR_error(buffer);
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continue;
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}
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if (!sw_gen)
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continue;
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if (string)
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{
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#ifdef GPRE_ADA
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if (handle_flag && (gpreGlob.sw_language == lang_ada))
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{
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for (const TEXT* q = gpreGlob.ada_package; *q;)
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*p++ = *q++;
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}
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#endif
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while (*string)
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*p++ = *string++;
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continue;
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}
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if (sw_ident)
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{
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if (long_flag)
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sprintf(p, gpreGlob.long_ident_pattern, long_value);
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else
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sprintf(p, gpreGlob.ident_pattern, value);
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}
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else if (reference)
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{
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if (!reference->ref_port)
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sprintf(p, gpreGlob.ident_pattern, reference->ref_ident);
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else
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{
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TEXT temp1[16], temp2[16];
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sprintf(temp1, gpreGlob.ident_pattern, reference->ref_port->por_ident);
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sprintf(temp2, gpreGlob.ident_pattern, reference->ref_ident);
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switch (gpreGlob.sw_language)
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{
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case lang_fortran:
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case lang_cobol:
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strcpy(p, temp2);
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break;
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default:
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sprintf(p, "%s.%s", temp1, temp2);
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}
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}
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}
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else if (long_flag) {
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sprintf(p, "%"SLONGFORMAT, long_value);
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}
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else {
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sprintf(p, "%d", value);
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}
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while (*p)
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p++;
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}
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*p = 0;
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#if (defined GPRE_ADA || defined GPRE_COBOL || defined GPRE_FORTRAN) && !defined(BOOT_BUILD)
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switch (gpreGlob.sw_language)
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{
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#ifdef GPRE_ADA
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// Ada lines can be up to 120 characters long. ADA_print_buffer
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// handles this problem and ensures that GPRE output is <=120 characters.
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case lang_ada:
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ADA_print_buffer(buffer, 0);
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break;
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#endif
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#ifdef GPRE_COBOL
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// COBOL lines can be up to 72 characters long. COB_print_buffer
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// handles this problem and ensures that GPRE output is <= 72 characters.
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case lang_cobol:
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COB_print_buffer(buffer, true);
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break;
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#endif
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#ifdef GPRE_FORTRAN
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// In FORTRAN, characters beyond column 72 are ignored. FTN_print_buffer
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// handles this problem and ensures that GPRE output does not exceed this
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// limit.
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case lang_fortran:
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FTN_print_buffer(buffer);
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break;
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#endif
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default:
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fprintf(gpreGlob.out_file, buffer);
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break;
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}
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#else
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fprintf(gpreGlob.out_file, buffer);
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#endif
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}
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