1003 lines
16 KiB
C
1003 lines
16 KiB
C
/***************************************************************************
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gbc_trans_subr.c
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(c) 2000-2017 Benoît Minisini <g4mba5@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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#define _TRANS_SUBR_C
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include "gb_common.h"
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#include "gb_error.h"
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#include "gbc_compile.h"
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#include "gbc_trans.h"
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#include "gb_code.h"
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#include "gb_limit.h"
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/*#define DEBUG*/
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typedef
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struct {
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char *name;
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SUBR_INFO *info;
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}
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TRANS_SUBR_INFO;
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static void trans_subr(int subr, int nparam)
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{
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static TRANS_SUBR_INFO subr_info[] =
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{
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{ ".Print" }, { ".Input" }, { ".Write" }, { ".WriteBytes" }, { ".Read" },
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{ ".ReadBytes" }, { ".Open" }, { ".Close" }, { "Seek" }, { ".LineInput" },
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{ ".Flush" }, { ".Exec" }, { ".Shell" }, { ".Wait" }, { ".Kill" },
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{ ".Move" }, { ".Mkdir" }, { ".Rmdir" }, { ".Array" }, {".Collection" },
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{ ".Copy" }, { ".Link" }, { ".Error" }, { ".Lock" }, { ".Unlock" },
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{ ".LockWait" }, { ".InputFrom" }, { ".OutputTo" }, { ".Debug" }, { ".Sleep" },
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{ ".Randomize" }, { ".ErrorTo" }, { "Left" }, { "Mid" }, { ".OpenMemory" },
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{ ".Chmod" }, { ".Chown" }, { ".Chgrp" }, { ".Use" }, { ".CheckExec" },
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{ ".MoveKill" }
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};
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TRANS_SUBR_INFO *tsi = &subr_info[subr];
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if (tsi->info == NULL)
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{
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tsi->info = SUBR_get(tsi->name);
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if (!tsi->info)
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ERROR_panic("Unknown intern subroutine: %s", tsi->name);
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}
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if (subr == TS_SUBR_ARRAY && nparam > MAX_PARAM_OP)
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CODE_subr(tsi->info->opcode, MAX_PARAM_OP + 1, CODE_CALL_VARIANT + MAX_PARAM_OP, FALSE);
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else if (subr == TS_SUBR_COLLECTION && nparam > MAX_PARAM_OP)
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CODE_subr(tsi->info->opcode, MAX_PARAM_OP, CODE_CALL_VARIANT + MAX_PARAM_OP - 1, FALSE);
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else
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CODE_subr(tsi->info->opcode, nparam, tsi->info->optype, tsi->info->min_param == tsi->info->max_param);
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}
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static bool trans_stream_check(int default_stream, bool check)
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{
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if (TRANS_is(RS_SHARP) || default_stream == TS_NONE)
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{
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TRANS_expression(FALSE);
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if (check)
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{
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if (PATTERN_is(*JOB->current, RS_COMMA))
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{
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JOB->current++;
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if (PATTERN_is_newline(*JOB->current))
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THROW(E_SYNTAX);
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}
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else
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{
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if (!PATTERN_is_newline(*JOB->current))
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THROW(E_SYNTAX);
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}
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}
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return FALSE;
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}
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else
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{
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//if (default_stream == TS_NONE)
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// THROW("Syntax error. &1 expected", "'#'");
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CODE_push_number(default_stream);
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return TRUE;
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}
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}
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#define trans_stream(_default_stream) trans_stream_check(_default_stream, TRUE)
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#define trans_stream_no_check(_default_stream) trans_stream_check(_default_stream, FALSE)
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static void trans_print_debug()
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{
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int nparam = 1;
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bool semicolon_or_comma = FALSE;
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for(;;)
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{
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if (PATTERN_is_newline(*JOB->current))
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break;
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TRANS_expression(FALSE);
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nparam++;
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semicolon_or_comma = FALSE;
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if (PATTERN_is_newline(*JOB->current))
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break;
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if (TRANS_is(RS_SCOLON))
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{
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if (TRANS_is(RS_SCOLON))
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{
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CODE_push_char(' ');
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nparam++;
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}
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semicolon_or_comma = TRUE;
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}
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else if (TRANS_is(RS_COMMA))
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{
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CODE_push_char('\t');
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nparam++;
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semicolon_or_comma = TRUE;
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}
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else
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THROW(E_SYNTAX);
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}
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if (!semicolon_or_comma)
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{
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CODE_push_char('\n');
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nparam++;
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}
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trans_subr(TS_SUBR_PRINT, nparam);
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CODE_drop();
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}
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void TRANS_print(void)
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{
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trans_stream(TS_STDOUT);
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trans_print_debug();
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}
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void TRANS_debug(void)
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{
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if (!JOB->debug)
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{
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while (!PATTERN_is_newline(*JOB->current))
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JOB->current++;
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return;
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}
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trans_subr(TS_SUBR_DEBUG, 0);
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CODE_drop();
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CODE_push_number(2); // stderr
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trans_print_debug();
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}
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void TRANS_error(void)
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{
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if (TRANS_is(RS_TO))
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{
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if (TRANS_is(RS_DEFAULT))
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CODE_push_null();
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else
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trans_stream(TS_NONE);
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trans_subr(TS_SUBR_ERROR_TO, 1);
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if (!TRANS_in_assignment)
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CODE_drop();
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}
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else
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{
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CODE_push_number(2); // stderr
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trans_print_debug();
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}
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}
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static int trans_binary_type(void)
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{
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int index;
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int nparam = 0;
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if (PATTERN_is_class(*JOB->current))
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{
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index = CLASS_add_class(JOB->class, PATTERN_index(*JOB->current));
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if (PATTERN_is(JOB->current[1], RS_LSQR))
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index = CLASS_get_array_class(JOB->class, T_OBJECT, index);
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CODE_push_class(index);
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}
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else if (PATTERN_is_type(*JOB->current))
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{
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if (PATTERN_is(JOB->current[1], RS_LSQR))
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{
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index = CLASS_get_array_class(JOB->class, RES_get_type(PATTERN_index(*JOB->current)), -1);
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CODE_push_class(index);
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}
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else
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{
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index = RES_get_type(PATTERN_index(*JOB->current));
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CODE_push_number(index);
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}
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}
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else
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THROW(E_SYNTAX);
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JOB->current++;
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nparam++;
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#if 0
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if (TRANS_is(RS_LSQR))
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{
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TRANS_expression(FALSE);
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nparam++;
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TRANS_want(RS_RSQR, NULL);
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}
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else if (TRANS_is(RS_STAR))
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{
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if (!string)
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THROW("Syntax error");
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TRANS_expression(FALSE);
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nparam++;
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}
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#endif
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return nparam;
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}
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void TRANS_write(void)
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{
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trans_stream(TS_STDOUT);
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TRANS_expression(FALSE);
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if (TRANS_is(RS_AS))
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{
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trans_binary_type();
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trans_subr(TS_SUBR_WRITE, 3);
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}
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else
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{
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if (TRANS_is(RS_COMMA))
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TRANS_expression(FALSE);
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else
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{
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if (JOB->no_old_read_syntax)
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THROW("Syntax error. &1 expected", "AS");
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CODE_push_number(-1);
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}
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trans_subr(TS_SUBR_WRITE_BYTES, 3);
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}
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CODE_drop();
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}
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void TRANS_output_to()
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{
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TRANS_want(RS_TO, NULL);
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if (TRANS_is(RS_DEFAULT))
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CODE_push_null();
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else
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trans_stream(TS_NONE);
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trans_subr(TS_SUBR_OUTPUT_TO, 1);
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if (!TRANS_in_assignment)
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CODE_drop();
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}
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void TRANS_input_from()
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{
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if (TRANS_is(RS_DEFAULT))
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CODE_push_null();
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else
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trans_stream(TS_NONE);
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trans_subr(TS_SUBR_INPUT_FROM, 1);
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if (!TRANS_in_assignment)
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CODE_drop();
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}
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void TRANS_input(void)
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{
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bool stream = TRUE;
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if (TRANS_is(RS_FROM))
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{
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TRANS_input_from();
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return;
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}
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trans_stream(TS_STDIN);
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for(;;)
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{
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trans_subr(TS_SUBR_INPUT, (stream ? 1 : 0));
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stream = FALSE;
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TRANS_reference();
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if (PATTERN_is_newline(*JOB->current))
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break;
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if (!PATTERN_is(*JOB->current, RS_COMMA)
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&& !PATTERN_is(*JOB->current, RS_SCOLON))
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THROW(E_SYNTAX);
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JOB->current++;
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}
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}
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void TRANS_read_old(void)
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{
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PATTERN *save_var;
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PATTERN *save_current;
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TYPE type;
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if (JOB->no_old_read_syntax)
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THROW(E_UNEXPECTED, "READ");
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trans_stream(TS_STDIN);
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save_var = JOB->current;
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type = TRANS_variable_get_type();
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if (TRANS_is(RS_COMMA))
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{
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TRANS_expression(FALSE);
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trans_subr(TS_SUBR_READ_BYTES, 2);
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}
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else
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{
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int id = TYPE_get_id(type);
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CODE_push_number(id);
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trans_subr(TS_SUBR_READ, 2);
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}
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save_current = JOB->current;
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JOB->current = save_var;
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TRANS_reference();
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JOB->current = save_current;
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}
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void TRANS_read(void)
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{
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bool def = trans_stream_no_check(TS_STDIN);
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if (TRANS_is(RS_AS))
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{
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trans_binary_type();
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trans_subr(TS_SUBR_READ, 2);
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}
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else
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{
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if (!def)
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TRANS_want(RS_COMMA, NULL);
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TRANS_expression(FALSE);
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trans_subr(TS_SUBR_READ_BYTES, 2);
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}
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}
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void TRANS_open(void)
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{
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int mode = TS_MODE_READ;
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if (TRANS_is(RS_PIPE))
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{
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TRANS_pipe();
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return;
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}
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else if (TRANS_is(RS_MEMORY))
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{
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TRANS_memory();
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return;
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}
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else if (TRANS_is(RS_STRING))
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{
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TRANS_open_string();
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return;
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}
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/* Nom du fichier */
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TRANS_expression(FALSE);
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/* mode d'ouverture */
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if (TRANS_is(RS_FOR))
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{
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if (TRANS_is(RS_READ))
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mode |= TS_MODE_READ | TS_MODE_DIRECT;
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else if (TRANS_is(RS_INPUT))
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mode |= TS_MODE_READ;
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if (TRANS_is(RS_WRITE))
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mode |= TS_MODE_WRITE | TS_MODE_DIRECT;
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else if (TRANS_is(RS_OUTPUT))
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mode |= TS_MODE_WRITE;
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if (TRANS_is(RS_CREATE))
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mode |= TS_MODE_CREATE;
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else if (TRANS_is(RS_APPEND))
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mode |= TS_MODE_APPEND;
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//if (TRANS_is(RS_DIRECT))
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// mode |= TS_MODE_DIRECT;
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if (TRANS_is(RS_WATCH))
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mode |= TS_MODE_WATCH;
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/*if (TRANS_is(RS_BIG))
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mode |= TS_MODE_BIG;
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else if (TRANS_is(RS_LITTLE))
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mode |= TS_MODE_LITTLE;*/
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/*JOB->current--;
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if (PATTERN_is(*JOB->current, RS_FOR))
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THROW("Syntax error in file open mode");
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JOB->current++;*/
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}
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CODE_push_number(mode);
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trans_subr(TS_SUBR_OPEN, 2);
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/*if (!TRANS_in_assignment)
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{
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//CODE_drop();
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TRANS_want(RS_AS, NULL);
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TRANS_ignore(RS_SHARP);
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TRANS_reference();
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}*/
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}
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void TRANS_pipe(void)
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{
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int mode = TS_MODE_READ;
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/* Nom du fichier */
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TRANS_expression(FALSE);
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/* mode d'ouverture */
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if (TRANS_is(RS_FOR))
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{
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if (TRANS_is(RS_READ))
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mode |= TS_MODE_READ | TS_MODE_DIRECT;
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//else if (TRANS_is(RS_INPUT))
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// mode |= TS_MODE_READ;
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if (TRANS_is(RS_WRITE))
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mode |= TS_MODE_WRITE | TS_MODE_DIRECT;
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//else if (TRANS_is(RS_OUTPUT))
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// mode |= TS_MODE_WRITE;
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if (TRANS_is(RS_WATCH))
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mode |= TS_MODE_WATCH;
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}
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CODE_push_number(mode | TS_MODE_PIPE);
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trans_subr(TS_SUBR_OPEN, 2);
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}
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void TRANS_memory(void)
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{
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int mode = TS_MODE_READ;
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/* Memory address */
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TRANS_expression(FALSE);
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/* Open mode */
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if (TRANS_is(RS_FOR))
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{
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if (TRANS_is(RS_READ))
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mode |= TS_MODE_READ | TS_MODE_DIRECT;
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if (TRANS_is(RS_WRITE))
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mode |= TS_MODE_WRITE | TS_MODE_DIRECT;
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}
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CODE_push_number(mode);
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trans_subr(TS_SUBR_OPEN_MEMORY, 2);
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}
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void TRANS_open_string(void)
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{
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int mode = TS_MODE_READ;
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/* Nom du fichier */
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if (!PATTERN_is(*JOB->current, RS_FOR))
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TRANS_expression(FALSE);
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else
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CODE_push_null();
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/* mode d'ouverture */
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if (TRANS_is(RS_FOR))
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{
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if (TRANS_is(RS_READ))
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mode |= TS_MODE_READ | TS_MODE_DIRECT;
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if (TRANS_is(RS_WRITE))
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mode |= TS_MODE_WRITE | TS_MODE_DIRECT;
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}
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CODE_push_number(mode | TS_MODE_STRING);
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trans_subr(TS_SUBR_OPEN, 2);
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}
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void TRANS_close(void)
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{
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if (PATTERN_is_newline(*JOB->current))
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THROW(E_SYNTAX);
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TRANS_ignore(RS_SHARP);
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TRANS_expression(FALSE);
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trans_subr(TS_SUBR_CLOSE, 1);
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if (!TRANS_in_assignment)
|
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CODE_drop();
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}
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void TRANS_lock(void)
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{
|
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if (PATTERN_is_newline(*JOB->current))
|
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THROW(E_SYNTAX);
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if (!TRANS_in_assignment)
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THROW("Useless LOCK");
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TRANS_expression(FALSE);
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if (TRANS_is(RS_WAIT))
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{
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TRANS_expression(FALSE);
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trans_subr(TS_SUBR_LOCK_WAIT, 2);
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}
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else
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trans_subr(TS_SUBR_LOCK, 1);
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}
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void TRANS_unlock(void)
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{
|
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if (PATTERN_is_newline(*JOB->current))
|
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THROW(E_SYNTAX);
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|
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TRANS_ignore(RS_SHARP);
|
|
TRANS_expression(FALSE);
|
|
|
|
trans_subr(TS_SUBR_UNLOCK, 1);
|
|
CODE_drop();
|
|
}
|
|
|
|
|
|
void TRANS_seek(void)
|
|
{
|
|
int nparam;
|
|
|
|
trans_stream(TS_NONE);
|
|
|
|
TRANS_expression(FALSE);
|
|
nparam = 2;
|
|
|
|
/*
|
|
if (TRANS_is(RS_COMMA))
|
|
{
|
|
TRANS_expression(FALSE);
|
|
nparam++;
|
|
}
|
|
*/
|
|
|
|
trans_subr(TS_SUBR_SEEK, nparam);
|
|
CODE_drop();
|
|
}
|
|
|
|
|
|
void TRANS_line_input(void)
|
|
{
|
|
if (TRANS_is(RS_INPUT))
|
|
{
|
|
trans_stream(TS_STDIN);
|
|
trans_subr(TS_SUBR_LINE_INPUT, 1);
|
|
TRANS_reference();
|
|
}
|
|
else
|
|
THROW(E_SYNTAX);
|
|
}
|
|
|
|
|
|
void TRANS_flush(void)
|
|
{
|
|
trans_stream(TS_STDOUT);
|
|
trans_subr(TS_SUBR_FLUSH, 1);
|
|
CODE_drop();
|
|
}
|
|
|
|
|
|
void TRANS_quit(void)
|
|
{
|
|
if (PATTERN_is_newline(*JOB->current))
|
|
{
|
|
CODE_quit(FALSE);
|
|
}
|
|
else
|
|
{
|
|
TRANS_expression(FALSE);
|
|
CODE_quit(TRUE);
|
|
}
|
|
|
|
}
|
|
|
|
void TRANS_randomize(void)
|
|
{
|
|
if (PATTERN_is_newline(*JOB->current))
|
|
{
|
|
trans_subr(TS_SUBR_RANDOMIZE, 0);
|
|
}
|
|
else
|
|
{
|
|
TRANS_expression(FALSE);
|
|
trans_subr(TS_SUBR_RANDOMIZE, 1);
|
|
}
|
|
|
|
CODE_drop();
|
|
}
|
|
|
|
static void trans_exec_shell(bool shell)
|
|
{
|
|
int mode = TS_EXEC_NONE;
|
|
bool wait;
|
|
bool as = TRUE;
|
|
|
|
TRANS_expression(FALSE);
|
|
|
|
if (TRANS_is(RS_WITH))
|
|
TRANS_expression(FALSE);
|
|
else
|
|
CODE_push_null();
|
|
|
|
wait = TRANS_is(RS_WAIT);
|
|
|
|
if (TRANS_is(RS_FOR))
|
|
{
|
|
if (TRANS_is(RS_READ))
|
|
mode |= TS_EXEC_READ;
|
|
if (TRANS_is(RS_WRITE))
|
|
mode |= TS_EXEC_WRITE;
|
|
|
|
if (mode == 0)
|
|
{
|
|
mode |= TS_EXEC_TERM;
|
|
if (TRANS_is(RS_INPUT))
|
|
mode |= TS_EXEC_READ;
|
|
if (TRANS_is(RS_OUTPUT))
|
|
mode |= TS_EXEC_WRITE;
|
|
}
|
|
}
|
|
else if (TRANS_is(RS_TO))
|
|
{
|
|
if (TRANS_in_assignment)
|
|
THROW("Syntax error. Cannot use this syntax in assignment");
|
|
|
|
mode = TS_EXEC_STRING;
|
|
wait = TRUE;
|
|
as = FALSE;
|
|
}
|
|
|
|
if (wait) mode |= TS_EXEC_WAIT;
|
|
CODE_push_number(mode);
|
|
|
|
if (as && TRANS_is(RS_AS))
|
|
TRANS_expression(FALSE);
|
|
else
|
|
CODE_push_null();
|
|
|
|
trans_subr(shell ? TS_SUBR_SHELL : TS_SUBR_EXEC, 4);
|
|
|
|
if (mode & TS_EXEC_STRING)
|
|
TRANS_reference();
|
|
else if (!TRANS_in_assignment)
|
|
CODE_drop();
|
|
}
|
|
|
|
|
|
void TRANS_exec(void)
|
|
{
|
|
trans_exec_shell(FALSE);
|
|
}
|
|
|
|
void TRANS_shell(void)
|
|
{
|
|
trans_exec_shell(TRUE);
|
|
}
|
|
|
|
|
|
void TRANS_wait(void)
|
|
{
|
|
int nparam = 0;
|
|
|
|
if (!PATTERN_is_newline(*JOB->current))
|
|
{
|
|
TRANS_expression(FALSE);
|
|
nparam = 1;
|
|
}
|
|
|
|
trans_subr(TS_SUBR_WAIT, nparam);
|
|
CODE_drop();
|
|
}
|
|
|
|
|
|
void TRANS_sleep(void)
|
|
{
|
|
TRANS_expression(FALSE);
|
|
trans_subr(TS_SUBR_SLEEP, 1);
|
|
CODE_drop();
|
|
}
|
|
|
|
|
|
void TRANS_kill(void)
|
|
{
|
|
TRANS_expression(FALSE);
|
|
trans_subr(TS_SUBR_KILL, 1);
|
|
CODE_drop();
|
|
}
|
|
|
|
void TRANS_move(void)
|
|
{
|
|
int subr;
|
|
|
|
TRANS_expression(FALSE);
|
|
if (TRANS_is(RS_TO))
|
|
subr = TS_SUBR_MOVE;
|
|
else if (TRANS_is(RS_DOWNTO) || TRANS_is(RS_KILL))
|
|
subr = TS_SUBR_MOVE_KILL;
|
|
else
|
|
THROW_UNEXPECTED(JOB->current);
|
|
|
|
TRANS_expression(FALSE);
|
|
trans_subr(subr, 2);
|
|
CODE_drop();
|
|
}
|
|
|
|
void TRANS_copy(void)
|
|
{
|
|
TRANS_expression(FALSE);
|
|
TRANS_want(RS_TO, NULL);
|
|
TRANS_expression(FALSE);
|
|
trans_subr(TS_SUBR_COPY, 2);
|
|
CODE_drop();
|
|
}
|
|
|
|
void TRANS_link(void)
|
|
{
|
|
TRANS_expression(FALSE);
|
|
TRANS_want(RS_TO, NULL);
|
|
TRANS_expression(FALSE);
|
|
trans_subr(TS_SUBR_LINK, 2);
|
|
CODE_drop();
|
|
}
|
|
|
|
void TRANS_chmod(void)
|
|
{
|
|
TRANS_expression(FALSE);
|
|
TRANS_want(RS_TO, NULL);
|
|
TRANS_expression(FALSE);
|
|
trans_subr(TS_SUBR_CHMOD, 2);
|
|
CODE_drop();
|
|
}
|
|
|
|
void TRANS_chown(void)
|
|
{
|
|
TRANS_expression(FALSE);
|
|
TRANS_want(RS_TO, NULL);
|
|
TRANS_expression(FALSE);
|
|
trans_subr(TS_SUBR_CHOWN, 2);
|
|
CODE_drop();
|
|
}
|
|
|
|
void TRANS_chgrp(void)
|
|
{
|
|
TRANS_expression(FALSE);
|
|
TRANS_want(RS_TO, NULL);
|
|
TRANS_expression(FALSE);
|
|
trans_subr(TS_SUBR_CHGRP, 2);
|
|
CODE_drop();
|
|
}
|
|
|
|
void TRANS_inc(void)
|
|
{
|
|
PATTERN *save = JOB->current;
|
|
|
|
TRANS_expression(FALSE);
|
|
CODE_push_number(1);
|
|
CODE_op(C_ADD, 0, 2, TRUE);
|
|
|
|
JOB->current = save;
|
|
TRANS_reference();
|
|
}
|
|
|
|
void TRANS_dec(void)
|
|
{
|
|
PATTERN *save = JOB->current;
|
|
|
|
TRANS_expression(FALSE);
|
|
CODE_push_number(1);
|
|
CODE_op(C_SUB, 0, 2, TRUE);
|
|
|
|
JOB->current = save;
|
|
TRANS_reference();
|
|
}
|
|
|
|
|
|
void TRANS_swap(void)
|
|
{
|
|
PATTERN *sa;
|
|
PATTERN *sb;
|
|
PATTERN *current;
|
|
|
|
sa = JOB->current;
|
|
TRANS_expression(FALSE);
|
|
|
|
TRANS_want(RS_COMMA, "Comma");
|
|
|
|
sb = JOB->current;
|
|
TRANS_expression(FALSE);
|
|
|
|
current = JOB->current;
|
|
|
|
JOB->current = sa;
|
|
TRANS_reference();
|
|
|
|
JOB->current = sb;
|
|
TRANS_reference();
|
|
|
|
JOB->current = current;
|
|
}
|
|
|
|
void TRANS_mkdir(void)
|
|
{
|
|
TRANS_expression(FALSE);
|
|
trans_subr(TS_SUBR_MKDIR, 1);
|
|
CODE_drop();
|
|
}
|
|
|
|
void TRANS_rmdir(void)
|
|
{
|
|
TRANS_expression(FALSE);
|
|
trans_subr(TS_SUBR_RMDIR, 1);
|
|
CODE_drop();
|
|
}
|
|
|
|
void TRANS_mid()
|
|
{
|
|
PATTERN *str;
|
|
PATTERN *pos;
|
|
PATTERN *len;
|
|
PATTERN *save;
|
|
|
|
TRANS_want(RS_LBRA, "Left bracket");
|
|
|
|
str = JOB->current;
|
|
TRANS_expression(FALSE);
|
|
|
|
TRANS_want(RS_COMMA, "Comma");
|
|
|
|
pos = JOB->current;
|
|
TRANS_expression(FALSE);
|
|
CODE_push_number(1);
|
|
CODE_op(C_SUB, 0, 2, TRUE);
|
|
TRANS_subr(TS_SUBR_LEFT, 2);
|
|
|
|
if (TRANS_is(RS_COMMA))
|
|
{
|
|
len = JOB->current;
|
|
TRANS_ignore_expression();
|
|
}
|
|
else
|
|
{
|
|
len = NULL;
|
|
}
|
|
|
|
TRANS_want(RS_RBRA, "Right bracket");
|
|
TRANS_want(RS_EQUAL, "Equal");
|
|
|
|
TRANS_expression(FALSE);
|
|
|
|
save = JOB->current;
|
|
|
|
if (len)
|
|
{
|
|
JOB->current = str;
|
|
TRANS_expression(FALSE);
|
|
JOB->current = pos;
|
|
TRANS_expression(FALSE);
|
|
JOB->current = len;
|
|
TRANS_expression(FALSE);
|
|
CODE_op(C_ADD, 0, 2, TRUE);
|
|
TRANS_subr(TS_SUBR_MID, 2);
|
|
}
|
|
|
|
CODE_op(C_CAT, 0, len ? 3 : 2, FALSE);
|
|
|
|
JOB->current = str;
|
|
TRANS_reference();
|
|
|
|
JOB->current = save;
|
|
}
|
|
|
|
|
|
|
|
#if 0
|
|
void TRANS_scan(void)
|
|
{
|
|
PATTERN *save;
|
|
int noutput = 0;
|
|
|
|
TRANS_expression(FALSE);
|
|
TRANS_want(RS_WITH, NULL);
|
|
TRANS_expression(FALSE);
|
|
|
|
TRANS_want(RS_TO, NULL);
|
|
|
|
save = JOB->current;
|
|
for(;;)
|
|
{
|
|
TRANS_expression(FALSE);
|
|
noutput++;
|
|
if (!TRANS_is(RS_COMMA))
|
|
break;
|
|
}
|
|
JOB->current = save;
|
|
|
|
trans_subr_output(TSO_SUBR_SCAN, 2 + noutput, noutput);
|
|
|
|
for(;;)
|
|
{
|
|
TRANS_reference();
|
|
if (!TRANS_is(RS_COMMA))
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void TRANS_subr(int subr, int nparam)
|
|
{
|
|
trans_subr(subr, nparam);
|
|
}
|
|
|