LWTools Old Repo: lwasm/macro.c annotate

annotate lwasm/macro.c @ 346:a82c55070624

Added expression parsing infrastructure and misc fixes

author	lost@starbug
date	Sat, 27 Mar 2010 19:04:03 -0600
parents	7416c3f9c321
children

rev	line source
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	1 /*
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	2 macro.c
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	3 Copyright © 2008 William Astle
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	4
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	5 This file is part of LWASM.
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	6
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	7 LWASM is free software: you can redistribute it and/or modify it under the
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	8 terms of the GNU General Public License as published by the Free Software
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	9 Foundation, either version 3 of the License, or (at your option) any later
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	10 version.
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	11
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	12 This program is distributed in the hope that it will be useful, but WITHOUT
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	15 more details.
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	16
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	17 You should have received a copy of the GNU General Public License along with
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	18 this program. If not, see <http://www.gnu.org/licenses/>.
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	19
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	20 Contains stuff associated with macro processing
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	21 */
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	22
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	23 #include <config.h>
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	24
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	25 #include <ctype.h>
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	26 #include <stdlib.h>
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	27 #include <string.h>
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	28 #include <stdio.h>
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	29
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	30 #include <lw_alloc.h>
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	31 #include <lw_string.h>
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	32
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	33 #include "lwasm.h"
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	34 #include "input.h"
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	35 #include "instab.h"
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	36
346 a82c55070624 Added expression parsing infrastructure and misc fixes lost@starbug parents: 345 diff changeset	37 PARSEFUNC(pseudo_parse_macro)
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	38 {
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	39 macrotab_t *m;
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	40
346 a82c55070624 Added expression parsing infrastructure and misc fixes lost@starbug parents: 345 diff changeset	41 l -> len = 0;
a82c55070624 Added expression parsing infrastructure and misc fixes lost@starbug parents: 345 diff changeset	42
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	43 if (as -> skipcond)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	44 {
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	45 as -> skipmacro = 1;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	46 return;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	47 }
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	48
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	49 if (as -> inmacro)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	50 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	51 lwasm_register_error(as, l, "Attempt to define a macro inside a macro");
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	52 return;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	53 }
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	54
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	55 if (!(l -> sym))
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	56 {
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	57 lwasm_register_error(as, l, "Missing macro name");
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	58 return;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	59 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	60
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	61 for (m = as -> macros; m; m = m -> next)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	62 {
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	63 if (!strcmp(m -> name, l -> sym))
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	64 break;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	65 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	66 if (m)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	67 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	68 lwasm_register_error(as, l, "Duplicate macro definition");
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	69 return;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	70 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	71
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	72 m = lw_alloc(sizeof(macrotab_t));
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	73 m -> name = lw_strdup(l -> sym);
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	74 m -> next = as -> macros;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	75 m -> lines = NULL;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	76 m -> numlines = 0;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	77 as -> macros = m;
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	78
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	79 while (p && !isspace(p))
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	80 (*p)++;
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	81
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	82 as -> inmacro = 1;
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	83 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	84
346 a82c55070624 Added expression parsing infrastructure and misc fixes lost@starbug parents: 345 diff changeset	85 PARSEFUNC(pseudo_parse_endm)
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	86 {
346 a82c55070624 Added expression parsing infrastructure and misc fixes lost@starbug parents: 345 diff changeset	87 l -> len = 0;
a82c55070624 Added expression parsing infrastructure and misc fixes lost@starbug parents: 345 diff changeset	88
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	89 if (as -> skipcond)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	90 {
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	91 as -> skipmacro = 0;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	92 return;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	93 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	94
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	95 if (!as -> inmacro)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	96 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	97 lwasm_register_error(as, l, "ENDM without MACRO");
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	98 return;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	99 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	100
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	101 as -> inmacro = 0;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	102
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	103 // a macro definition counts as a context break for local symbols
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	104 as -> context = lwasm_next_context(as);
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	105 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	106
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	107 // the current macro will ALWAYS be the first one in the table
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	108 int add_macro_line(asmstate_t as, char optr)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	109 {
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	110 if (!as -> inmacro)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	111 return 0;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	112
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	113 as -> macros -> lines = lw_realloc(as -> macros -> lines, sizeof(char ) (as -> macros -> numlines + 1));
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	114 as -> macros -> lines[as -> macros -> numlines] = lw_strdup(optr);
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	115 as -> macros -> numlines += 1;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	116 return 1;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	117 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	118
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	119 void macro_add_to_buff(char *buff, int loc, int *len, char c)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	120 {
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	121 if (loc == len)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	122 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	123 buff = lw_realloc(buff, *len + 32);
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	124 *len += 32;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	125 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	126 (buff)[(loc)++] = c;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	127 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	128
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	129 // this is just like a regular operation function
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	130 /*
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	131 macro args are referenced by "\n" where 1 <= n <= 9
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	132 or by "\{n}"; a \ can be included by writing \\
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	133 a comma separates argument but one can be included with "\,"
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	134 whitespace ends argument list but can be included with "\ " or the like
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	135
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	136 */
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	137 int expand_macro(asmstate_t as, line_t l, char *p, char opc)
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	138 {
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	139 int lc;
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	140 line_t cl, nl;
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	141 int oldcontext;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	142 macrotab_t *m;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	143
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	144 char **args = NULL; // macro arguments
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	145 int nargs = 0; // number of arguments
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	146
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	147 char p2, p3;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	148
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	149 int bloc, blen;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	150 char *linebuff;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	151
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	152 for (m = as -> macros; m; m = m -> next)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	153 {
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	154 if (!strcmp(opc, m -> name))
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	155 break;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	156 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	157 // signal no macro expansion
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	158 if (!m)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	159 return -1;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	160
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	161 // save current symbol context for after macro expansion
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	162 oldcontext = as -> context;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	163
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	164 cl = l;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	165
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	166 as -> context = lwasm_next_context(as);
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	167
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	168 while (p && !isspace(p) && **p != ',')
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	169 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	170 p2 = *p;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	171 while (p2 && !isspace(p2) && *p2 != ',')
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	172 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	173 if (*p2 == '\\')
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	174 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	175 if (p2[1])
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	176 p2++;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	177 }
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	178 p2++;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	179 }
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	180
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	181 // have arg here
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	182 args = lw_realloc(args, sizeof(char ) (nargs + 1));
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	183 args[nargs] = lw_alloc(p2 - *p + 1);
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	184 args[nargs][p2 - *p] = '\0';
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	185 memcpy(args[nargs], p, p2 - p);
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	186 *p = p2;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	187
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	188 // now collapse out "\" characters
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	189 for (p3 = p2 = args[nargs]; *p2; p2++, p3++)
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	190 {
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	191 if (*p2 == '\\' && p2[1])
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	192 {
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	193 p2++;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	194 }
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	195 p3 = p2;
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	196 }
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	197 *p3 = '\0';
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	198
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	199 nargs++;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	200 if (**p == ',')
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	201 (*p)++;
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	202 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	203
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	204
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	205 // now create a string for the macro
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	206 // and push it into the front of the input stack
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	207 bloc = blen = 0;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	208 linebuff = NULL;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	209
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	210 for (lc = 0; lc < m -> numlines; lc++)
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	211 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	212 for (p2 = m -> lines[lc]; *p2; p2++)
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	213 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	214 if (*p2 == '\\' && isdigit(p2[1]))
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	215 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	216 int n;
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	217
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	218 p2++;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	219 n = *p2 - '0';
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	220 if (n == 0)
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	221 {
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	222 for (p3 = m -> name; *p3; p3++)
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	223 macro_add_to_buff(&linebuff, &bloc, &blen, *p3);
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	224 continue;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	225 }
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	226 if (n < 1 \|\| n > nargs)
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	227 continue;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	228 for (p3 = args[n - 1]; *p3; p3++)
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	229 macro_add_to_buff(&linebuff, &bloc, &blen, *p3);
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	230 continue;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	231 }
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	232 else if (*p2 == '{')
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	233 {
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	234 int n = 0, n2;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	235 p2++;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	236 while (p2 && isdigit(p2))
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	237 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	238 n2 = *p2 - '0';
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	239 if (n2 < 0 \|\| n2 > 9)
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	240 n2 = 0;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	241 n = n * 10 + n2;
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	242 p2++;
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	243 }
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	244 if (*p2 == '}')
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	245 p2++;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	246
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	247 if (n == 0)
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	248 {
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	249 for (p3 = m -> name; *p3; p3++)
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	250 macro_add_to_buff(&linebuff, &bloc, &blen, *p3);
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	251 continue;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	252 }
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	253 if (n < 1 \|\| n > nargs)
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	254 continue;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	255 for (p3 = args[n - 1]; *p3; p3++)
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	256 macro_add_to_buff(&linebuff, &bloc, &blen, *p3);
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	257 continue;
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	258 }
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	259 else
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	260 {
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	261 macro_add_to_buff(&linebuff, &bloc, &blen, *p2);
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	262 }
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	263 }
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	264
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	265 macro_add_to_buff(&linebuff, &bloc, &blen, '\n');
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	266
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	267 }
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	268
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	269 {
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	270 char ctcbuf[100];
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	271 char *p;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	272 snprintf(ctcbuf, 100, "\001\001SETCONTEXT %d\n", oldcontext);
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	273 for (p = ctcbuf; *p; p++)
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	274 macro_add_to_buff(&linebuff, &bloc, &blen, *p);
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	275 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	276
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	277 // push the macro into the front of the stream
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	278 input_openstring(as, opc, linebuff);
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	279
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	280 lw_free(linebuff);
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	281
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	282 // clean up
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	283 if (args)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	284 {
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	285 while (nargs)
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	286 {
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	287 lw_free(args[--nargs]);
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	288 }
345 7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols lost@starbug parents: 339 diff changeset	289 lw_free(args);
339 eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	290 }
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	291
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	292 // indicate a macro was expanded
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	293 return 0;
eb230fa7d28e Prepare for migration to hg lost parents: diff changeset	294 }

Mercurial > hg-old > index.cgi

annotate lwasm/macro.c @ 346:a82c55070624