| 1 | %{ |
| 2 | |
| 3 | /* Copyright (C) 1991 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GLD, the Gnu Linker. |
| 6 | |
| 7 | GLD is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2, or (at your option) |
| 10 | any later version. |
| 11 | |
| 12 | GLD is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GLD; see the file COPYING. If not, write to |
| 19 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | /* |
| 22 | This was written by steve chamberlain |
| 23 | sac@cygnus.com |
| 24 | */ |
| 25 | |
| 26 | |
| 27 | typedef int bfd_vma; |
| 28 | #include <ansidecl.h> |
| 29 | #include "ldgram.h" |
| 30 | |
| 31 | int ldgram_in_defsym; |
| 32 | int ldgram_had_equals; |
| 33 | int ldgram_in_script; |
| 34 | |
| 35 | int hex_mode; |
| 36 | extern int fgetc(); |
| 37 | extern int yyparse(); |
| 38 | |
| 39 | |
| 40 | |
| 41 | char *buystring(); |
| 42 | |
| 43 | unsigned int lineno = 1; |
| 44 | int old; |
| 45 | |
| 46 | static comment(); |
| 47 | |
| 48 | #undef YY_INPUT |
| 49 | #define YY_INPUT(buf,result,max_size) yy_input(buf, &result, max_size) |
| 50 | #undef YY_FATAL_ERROR |
| 51 | #define YY_FATAL_ERROR ; |
| 52 | #define MAX_INCLUDE_DEPTH 10 |
| 53 | YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH]; |
| 54 | char *file_name_stack[MAX_INCLUDE_DEPTH]; |
| 55 | unsigned int include_stack_ptr = 0; |
| 56 | |
| 57 | |
| 58 | /* STATES |
| 59 | COMMAND on command line |
| 60 | COMMENT in a C comment |
| 61 | EXPRESSION definiatelyt in an expression |
| 62 | SCRIPT definately in a script |
| 63 | SOMEWHERE either EXPRESSION or SCRIPT |
| 64 | MRI in an MRI script |
| 65 | */ |
| 66 | #define RTOKEN(x) { yylval.token = x; return x; } |
| 67 | %} |
| 68 | |
| 69 | %a 4000 |
| 70 | %o 5000 |
| 71 | |
| 72 | CMDFILENAMECHAR [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\-\~] |
| 73 | CMDFILENAMECHAR1 [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\~] |
| 74 | FILENAMECHAR1 [_a-zA-Z\/\.\\\$\_\~] |
| 75 | SYMBOLCHARN [_a-zA-Z\/\.\\0-9] |
| 76 | FILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~] |
| 77 | FILENAME {FILENAMECHAR}+ |
| 78 | WHITE [ \t\n]+ |
| 79 | |
| 80 | NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~] |
| 81 | |
| 82 | |
| 83 | %s COMMAND |
| 84 | %s SCRIPT |
| 85 | %s EXPRESSION |
| 86 | %s COMMENT |
| 87 | %s BOTH |
| 88 | %s DEFSYMEXP |
| 89 | %s MRI |
| 90 | %% |
| 91 | |
| 92 | |
| 93 | <BOTH,SCRIPT,EXPRESSION,COMMAND>"/*" { comment(); } |
| 94 | |
| 95 | |
| 96 | <DEFSYMEXP>"-" { RTOKEN('-');} |
| 97 | <DEFSYMEXP>"+" { RTOKEN('+');} |
| 98 | <DEFSYMEXP>{FILENAMECHAR1}{SYMBOLCHARN}* { yylval.name = buystring(yytext); return NAME; } |
| 99 | <DEFSYMEXP>[ \t] { RTOKEN(DEFSYMEND); } |
| 100 | <DEFSYMEXP>"=" { RTOKEN('='); } |
| 101 | <COMMAND>"-defsym"{WHITE}* { return OPTION_defsym; } |
| 102 | <COMMAND>"-noinhibit_exec" { return OPTION_noinhibit_exec; } |
| 103 | <COMMAND>"-noinhibit-exec" { return OPTION_noinhibit_exec; } |
| 104 | <COMMAND>"-sort_common" { return OPTION_sort_common;} |
| 105 | <COMMAND>"-sort-common" { return OPTION_sort_common;} |
| 106 | <COMMAND>"-format" { return OPTION_format; } |
| 107 | <COMMAND>"-n" { return OPTION_n; } |
| 108 | <COMMAND>"-N" { return OPTION_N; } |
| 109 | <COMMAND>"-r" { return OPTION_r; } |
| 110 | <COMMAND>"-relax" { return OPTION_relax; } |
| 111 | <COMMAND>"-i" { return OPTION_r; } |
| 112 | <COMMAND>"-Ur" { return OPTION_Ur; } |
| 113 | <COMMAND>"-o" { return OPTION_o; } |
| 114 | <COMMAND>"-g" { return OPTION_g; } |
| 115 | <COMMAND>"-e" { return OPTION_e; } |
| 116 | <COMMAND>"-b" { return OPTION_b; } |
| 117 | <COMMAND>"-dc" { return OPTION_dc; } |
| 118 | <COMMAND>"-dp" { return OPTION_dp; } |
| 119 | <COMMAND>"-d" { return OPTION_d; } |
| 120 | <COMMAND>"-v" { return OPTION_v; } |
| 121 | <COMMAND>"-V" { return OPTION_V; } |
| 122 | <COMMAND>"-M" { return OPTION_M; } |
| 123 | <COMMAND>"-Map" { return OPTION_Map;} |
| 124 | <COMMAND>"-t" { return OPTION_t; } |
| 125 | <COMMAND>"-X" { return OPTION_X; } |
| 126 | <COMMAND>"-x" { return OPTION_x; } |
| 127 | <COMMAND>"-c" { return OPTION_c; } |
| 128 | <COMMAND>"-R" { return OPTION_R; } |
| 129 | <COMMAND>"-u" { return OPTION_u; } |
| 130 | <COMMAND>"-s" { return OPTION_s; } |
| 131 | <COMMAND>"-S" { return OPTION_S; } |
| 132 | <COMMAND>"-Bstat" { return OPTION_Bstatic; } |
| 133 | <COMMAND>"-B"{FILENAME} { /* Ignored */ } |
| 134 | <COMMAND>"-l"{FILENAME} { |
| 135 | yylval.name = buystring(yytext+2); |
| 136 | return OPTION_l; |
| 137 | } |
| 138 | |
| 139 | <COMMAND>"-L"{FILENAME} { |
| 140 | yylval.name = buystring(yytext+2); |
| 141 | return OPTION_L; |
| 142 | } |
| 143 | <COMMAND>"-Ttext" { |
| 144 | yylval.name = ".text"; |
| 145 | return OPTION_Texp; |
| 146 | } |
| 147 | <COMMAND>"-Tdata" { |
| 148 | yylval.name = ".data"; |
| 149 | return OPTION_Texp; |
| 150 | } |
| 151 | <COMMAND>"-Tbss" { |
| 152 | yylval.name = ".bss"; |
| 153 | return OPTION_Texp; |
| 154 | } |
| 155 | <COMMAND>"-O"{FILENAME} { |
| 156 | yylval.name = buystring(yytext+2); |
| 157 | return OPTION_Texp; |
| 158 | } |
| 159 | |
| 160 | <COMMAND>"-T"{FILENAME} { |
| 161 | yylval.name = buystring(yytext+2); |
| 162 | return OPTION_Tfile; |
| 163 | } |
| 164 | <COMMAND>"-T" { |
| 165 | return OPTION_T; |
| 166 | } |
| 167 | |
| 168 | <COMMAND>"-F"{FILENAME} { |
| 169 | return OPTION_F; |
| 170 | } |
| 171 | <COMMAND>"-F" { |
| 172 | return OPTION_F; |
| 173 | } |
| 174 | |
| 175 | <COMMAND>"-y"{FILENAME} { |
| 176 | yylval.name = buystring(yytext+2); |
| 177 | return OPTION_y; |
| 178 | } |
| 179 | |
| 180 | <COMMAND>"-A"{FILENAME} { |
| 181 | yylval.name = buystring(yytext+2); |
| 182 | return OPTION_Aarch; |
| 183 | } |
| 184 | |
| 185 | <COMMAND>"-retain-symbols-file" { return OPTION_RETAIN_SYMBOLS_FILE; } |
| 186 | |
| 187 | <MRI,EXPRESSION>"$"([0-9A-Fa-f])+ { |
| 188 | yylval.integer = strtoul(yytext+1, 0,16); |
| 189 | return INT; |
| 190 | } |
| 191 | |
| 192 | <MRI,EXPRESSION>([0-9A-Fa-f])+(H|X|B|O|D) { |
| 193 | int base ; |
| 194 | switch (yytext[yyleng-1]) { |
| 195 | case 'X': |
| 196 | case 'H': |
| 197 | base = 16; |
| 198 | break; |
| 199 | case 'O': |
| 200 | base = 8; |
| 201 | break; |
| 202 | case 'B': |
| 203 | base = 2; |
| 204 | break; |
| 205 | default: |
| 206 | base = 10; |
| 207 | } |
| 208 | yylval.integer = strtoul(yytext+1, 0, base); |
| 209 | return INT; |
| 210 | } |
| 211 | <DEFSYMEXP,MRI,BOTH,EXPRESSION>"$"?"0x"?([0-9A-Fa-f])+(M|K|m|k)? { |
| 212 | yylval.integer = strtoul(yytext,0,hex_mode); |
| 213 | if (yytext[yyleng-1]=='M' |
| 214 | || yytext[yyleng-1] == 'm') { |
| 215 | yylval.integer *= 1024*1024; |
| 216 | } |
| 217 | if (yytext[yyleng-1]=='K' |
| 218 | || yytext[yyleng-1]=='k') { |
| 219 | yylval.integer *= 1024; |
| 220 | } |
| 221 | return INT; |
| 222 | } |
| 223 | <BOTH,SCRIPT,EXPRESSION>"]" { RTOKEN(']');} |
| 224 | <BOTH,SCRIPT,EXPRESSION>"[" { RTOKEN('[');} |
| 225 | <BOTH,SCRIPT,EXPRESSION>"<<=" { RTOKEN(LSHIFTEQ);} |
| 226 | <BOTH,SCRIPT,EXPRESSION>">>=" { RTOKEN(RSHIFTEQ);} |
| 227 | <BOTH,SCRIPT,EXPRESSION>"||" { RTOKEN(OROR);} |
| 228 | <BOTH,SCRIPT,EXPRESSION>"==" { RTOKEN(EQ);} |
| 229 | <BOTH,SCRIPT,EXPRESSION>"!=" { RTOKEN(NE);} |
| 230 | <BOTH,SCRIPT,EXPRESSION>">=" { RTOKEN(GE);} |
| 231 | <BOTH,SCRIPT,EXPRESSION>"<=" { RTOKEN(LE);} |
| 232 | <BOTH,SCRIPT,EXPRESSION>"<<" { RTOKEN(LSHIFT);} |
| 233 | <BOTH,SCRIPT,EXPRESSION>">>" { RTOKEN(RSHIFT);} |
| 234 | <BOTH,SCRIPT,EXPRESSION>"+=" { RTOKEN(PLUSEQ);} |
| 235 | <BOTH,SCRIPT,EXPRESSION>"-=" { RTOKEN(MINUSEQ);} |
| 236 | <BOTH,SCRIPT,EXPRESSION>"*=" { RTOKEN(MULTEQ);} |
| 237 | <BOTH,SCRIPT,EXPRESSION>"/=" { RTOKEN(DIVEQ);} |
| 238 | <BOTH,SCRIPT,EXPRESSION>"&=" { RTOKEN(ANDEQ);} |
| 239 | <BOTH,SCRIPT,EXPRESSION>"|=" { RTOKEN(OREQ);} |
| 240 | <BOTH,SCRIPT,EXPRESSION>"&&" { RTOKEN(ANDAND);} |
| 241 | <BOTH,SCRIPT,EXPRESSION>">" { RTOKEN('>');} |
| 242 | <MRI,BOTH,SCRIPT,EXPRESSION>"," { RTOKEN(',');} |
| 243 | <BOTH,SCRIPT,EXPRESSION>"&" { RTOKEN('&');} |
| 244 | <BOTH,SCRIPT,EXPRESSION>"|" { RTOKEN('|');} |
| 245 | <BOTH,SCRIPT,EXPRESSION>"~" { RTOKEN('~');} |
| 246 | <BOTH,SCRIPT,EXPRESSION>"!" { RTOKEN('!');} |
| 247 | <BOTH,SCRIPT,EXPRESSION>"?" { RTOKEN('?');} |
| 248 | <BOTH,SCRIPT,EXPRESSION>"*" { RTOKEN('*');} |
| 249 | <BOTH,SCRIPT,EXPRESSION>"+" { RTOKEN('+');} |
| 250 | <BOTH,SCRIPT,EXPRESSION>"-" { RTOKEN('-');} |
| 251 | <BOTH,SCRIPT,EXPRESSION>"/" { RTOKEN('/');} |
| 252 | <BOTH,SCRIPT,EXPRESSION>"%" { RTOKEN('%');} |
| 253 | <BOTH,SCRIPT,EXPRESSION>"<" { RTOKEN('<');} |
| 254 | <BOTH,SCRIPT,EXPRESSION>">" { RTOKEN('>');} |
| 255 | <MRI,BOTH,SCRIPT,EXPRESSION>"=" { RTOKEN('=');} |
| 256 | <BOTH,SCRIPT,EXPRESSION>"}" { RTOKEN('}') ; } |
| 257 | <BOTH,SCRIPT,EXPRESSION>"{" { RTOKEN('{'); } |
| 258 | <BOTH,SCRIPT,EXPRESSION>")" { RTOKEN(')');} |
| 259 | <BOTH,SCRIPT,EXPRESSION>"(" { RTOKEN('(');} |
| 260 | <BOTH,SCRIPT,EXPRESSION>"]" { RTOKEN(']');} |
| 261 | <BOTH,SCRIPT,EXPRESSION>"[" { RTOKEN('[');} |
| 262 | <BOTH,SCRIPT,EXPRESSION>":" { RTOKEN(':'); } |
| 263 | <BOTH,SCRIPT,EXPRESSION>";" { RTOKEN(';');} |
| 264 | <BOTH,SCRIPT,EXPRESSION>"-" { RTOKEN('-');} |
| 265 | <BOTH,SCRIPT,EXPRESSION>"/" { RTOKEN('/');} |
| 266 | <BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);} |
| 267 | <BOTH,SCRIPT>"ORIGIN" { RTOKEN(ORIGIN);} |
| 268 | <BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);} |
| 269 | <BOTH,SCRIPT>"LENGTH" { RTOKEN(LENGTH);} |
| 270 | <EXPRESSION,BOTH,SCRIPT>"ALIGN" { RTOKEN(ALIGN_K);} |
| 271 | <EXPRESSION,BOTH,SCRIPT>"ADDR" { RTOKEN(ADDR);} |
| 272 | <BOTH,SCRIPT>"ENTRY" { RTOKEN(ENTRY);} |
| 273 | <EXPRESSION,BOTH,SCRIPT>"NEXT" { RTOKEN(NEXT);} |
| 274 | <EXPRESSION,BOTH,SCRIPT>"sizeof_headers" { RTOKEN(SIZEOF_HEADERS);} |
| 275 | <EXPRESSION,BOTH,SCRIPT>"SIZEOF_HEADERS" { RTOKEN(SIZEOF_HEADERS);} |
| 276 | <BOTH,SCRIPT>"MAP" { RTOKEN(MAP);} |
| 277 | <EXPRESSION,BOTH,SCRIPT>"SIZEOF" { RTOKEN(SIZEOF);} |
| 278 | <BOTH,SCRIPT>"TARGET" { RTOKEN(TARGET_K);} |
| 279 | <BOTH,SCRIPT>"SEARCH_DIR" { RTOKEN(SEARCH_DIR);} |
| 280 | <BOTH,SCRIPT>"OUTPUT" { RTOKEN(OUTPUT);} |
| 281 | <BOTH,SCRIPT>"INPUT" { RTOKEN(INPUT);} |
| 282 | <EXPRESSION,BOTH,SCRIPT>"DEFINED" { RTOKEN(DEFINED);} |
| 283 | <BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS" { RTOKEN(CREATE_OBJECT_SYMBOLS);} |
| 284 | <BOTH,SCRIPT>"CONSTRUCTORS" { RTOKEN( CONSTRUCTORS);} |
| 285 | <BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION" { RTOKEN(FORCE_COMMON_ALLOCATION);} |
| 286 | <BOTH,SCRIPT>"SECTIONS" { RTOKEN(SECTIONS);} |
| 287 | <BOTH,SCRIPT>"FILL" { RTOKEN(FILL);} |
| 288 | <BOTH,SCRIPT>"STARTUP" { RTOKEN(STARTUP);} |
| 289 | <BOTH,SCRIPT>"OUTPUT_FORMAT" { RTOKEN(OUTPUT_FORMAT);} |
| 290 | <BOTH,SCRIPT>"OUTPUT_ARCH" { RTOKEN( OUTPUT_ARCH);} |
| 291 | <BOTH,SCRIPT>"HLL" { RTOKEN(HLL);} |
| 292 | <BOTH,SCRIPT>"SYSLIB" { RTOKEN(SYSLIB);} |
| 293 | <BOTH,SCRIPT>"FLOAT" { RTOKEN(FLOAT);} |
| 294 | <BOTH,SCRIPT>"LONG" { RTOKEN( LONG);} |
| 295 | <BOTH,SCRIPT>"SHORT" { RTOKEN( SHORT);} |
| 296 | <BOTH,SCRIPT>"BYTE" { RTOKEN( BYTE);} |
| 297 | <BOTH,SCRIPT>"NOFLOAT" { RTOKEN(NOFLOAT);} |
| 298 | <EXPRESSION,BOTH,SCRIPT>"NOLOAD" { RTOKEN(NOLOAD);} |
| 299 | <BOTH,SCRIPT>"DSECT" { RTOKEN(DSECT);} |
| 300 | <BOTH,SCRIPT>"COPY" { RTOKEN(COPY);} |
| 301 | <BOTH,SCRIPT>"INFO" { RTOKEN(INFO);} |
| 302 | <BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY);} |
| 303 | <BOTH,SCRIPT>"o" { RTOKEN(ORIGIN);} |
| 304 | <BOTH,SCRIPT>"org" { RTOKEN(ORIGIN);} |
| 305 | <BOTH,SCRIPT>"l" { RTOKEN( LENGTH);} |
| 306 | <BOTH,SCRIPT>"len" { RTOKEN( LENGTH);} |
| 307 | <BOTH,SCRIPT>"INCLUDE" { RTOKEN(INCLUDE);} |
| 308 | <MRI>"\n" { ++ lineno; RTOKEN(NEWLINE); } |
| 309 | <MRI>"*".* { /* Mri comment line */ } |
| 310 | <MRI>"END" { RTOKEN(ENDWORD); } |
| 311 | <MRI>"ALIGNMOD" { RTOKEN(ALIGNMOD);} |
| 312 | <MRI>"ALIGN" { RTOKEN(ALIGN_K);} |
| 313 | |
| 314 | <MRI>"CHIP" { RTOKEN(CHIP); } |
| 315 | <MRI>"BASE" { RTOKEN(BASE); } |
| 316 | <MRI>"ALIAS" { RTOKEN(ALIAS); } |
| 317 | <MRI>"TRUNCATE" { RTOKEN(TRUNCATE); } |
| 318 | <MRI>"LOAD" { RTOKEN(LOAD); } |
| 319 | <MRI>"PUBLIC" { RTOKEN(PUBLIC); } |
| 320 | <MRI>"ORDER" { RTOKEN(ORDER); } |
| 321 | <MRI>"NAME" { RTOKEN(NAMEWORD); } |
| 322 | <MRI>"FORMAT" { RTOKEN(FORMAT); } |
| 323 | <MRI>"LIST".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } |
| 324 | <MRI>"SECT" { RTOKEN(SECT); } |
| 325 | <EXPRESSION,BOTH,SCRIPT,MRI>"ABSOLUTE" { RTOKEN(ABSOLUTE); } |
| 326 | <MRI>"end" { RTOKEN(ENDWORD); } |
| 327 | <MRI>"chip" { RTOKEN(CHIP); } |
| 328 | <MRI>"load" { RTOKEN(LOAD); } |
| 329 | <MRI>"order" { RTOKEN(ORDER); } |
| 330 | <MRI>"name" { RTOKEN(NAMEWORD); } |
| 331 | <MRI>"format" { RTOKEN(FORMAT); } |
| 332 | <MRI>"list".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } |
| 333 | <MRI>"sect" { RTOKEN(SECT); } |
| 334 | <EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); } |
| 335 | |
| 336 | <COMMAND>{CMDFILENAMECHAR1}{CMDFILENAMECHAR}* { |
| 337 | yylval.name = buystring(yytext); |
| 338 | return NAME; |
| 339 | } |
| 340 | |
| 341 | |
| 342 | <MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* { |
| 343 | /* Filename without commas, needed to parse mri stuff */ |
| 344 | yylval.name = buystring(yytext); |
| 345 | return NAME; |
| 346 | } |
| 347 | |
| 348 | |
| 349 | <BOTH,EXPRESSION>{FILENAMECHAR1}{FILENAMECHAR}* { |
| 350 | yylval.name = buystring(yytext); |
| 351 | return NAME; |
| 352 | } |
| 353 | <SCRIPT,COMMAND>{FILENAMECHAR}* { yylval.name = buystring(yytext); |
| 354 | return NAME; |
| 355 | } |
| 356 | |
| 357 | <EXPRESSION,BOTH,COMMAND,SCRIPT>"\""[^\"]*"\"" { |
| 358 | /* No matter the state, quotes |
| 359 | give what's inside */ |
| 360 | yylval.name = buystring(yytext+1); |
| 361 | yylval.name[yyleng-2] = 0; |
| 362 | return NAME; |
| 363 | } |
| 364 | <BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;} |
| 365 | <MRI,COMMAND,BOTH,SCRIPT,EXPRESSION>[ \t] |
| 366 | |
| 367 | <<EOF>> { |
| 368 | extern char *ldfile_input_filename; |
| 369 | include_stack_ptr--; |
| 370 | |
| 371 | if (include_stack_ptr == 0) |
| 372 | { |
| 373 | yyterminate(); |
| 374 | } |
| 375 | else |
| 376 | { |
| 377 | yy_switch_to_buffer(include_stack[include_stack_ptr]); |
| 378 | |
| 379 | } |
| 380 | if (include_stack_ptr==1) |
| 381 | { |
| 382 | BEGIN(COMMAND); |
| 383 | } |
| 384 | else |
| 385 | { |
| 386 | ldfile_input_filename = file_name_stack[include_stack_ptr-1]; |
| 387 | } |
| 388 | |
| 389 | return END; |
| 390 | } |
| 391 | |
| 392 | %% |
| 393 | |
| 394 | void |
| 395 | DEFUN(lex_push_file,(file,name), |
| 396 | FILE *file AND |
| 397 | char *name) |
| 398 | { |
| 399 | if (include_stack_ptr >= MAX_INCLUDE_DEPTH) |
| 400 | { |
| 401 | einfo("%F:includes nested too deeply"); |
| 402 | } |
| 403 | file_name_stack[include_stack_ptr] = name; |
| 404 | include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; |
| 405 | |
| 406 | include_stack_ptr++; |
| 407 | yyin = file; |
| 408 | yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE)); |
| 409 | |
| 410 | BEGIN(SCRIPT); |
| 411 | } |
| 412 | |
| 413 | YY_BUFFER_STATE |
| 414 | DEFUN(yy_create_string_buffer,(string, size), |
| 415 | CONST char *string AND |
| 416 | int size ) |
| 417 | { |
| 418 | YY_BUFFER_STATE b; |
| 419 | |
| 420 | b = (YY_BUFFER_STATE) malloc( sizeof( struct yy_buffer_state ) ); |
| 421 | b->yy_input_file = 0; |
| 422 | |
| 423 | if ( ! b ) |
| 424 | YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); |
| 425 | |
| 426 | b->yy_buf_size = size; |
| 427 | |
| 428 | /* yy_ch_buf has to be 2 characters longer than the size given because |
| 429 | * we need to put in 2 end-of-buffer characters. |
| 430 | */ |
| 431 | b->yy_ch_buf = (YY_CHAR *) malloc( (unsigned) (b->yy_buf_size + 3) ); |
| 432 | |
| 433 | if ( ! b->yy_ch_buf ) |
| 434 | YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); |
| 435 | |
| 436 | |
| 437 | b->yy_ch_buf[0] = '\n'; |
| 438 | strcpy(b->yy_ch_buf+1, string); |
| 439 | b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR; |
| 440 | b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR; |
| 441 | b->yy_n_chars = size+1; |
| 442 | b->yy_buf_pos = &b->yy_ch_buf[1]; |
| 443 | |
| 444 | b->yy_eof_status = EOF_NOT_SEEN; |
| 445 | |
| 446 | return ( b ); |
| 447 | } |
| 448 | |
| 449 | |
| 450 | |
| 451 | void |
| 452 | DEFUN(lex_redirect,( string), |
| 453 | CONST char *string) |
| 454 | { |
| 455 | YY_BUFFER_STATE tmp; |
| 456 | |
| 457 | int len = strlen(string); |
| 458 | yy_init = 0 ; |
| 459 | if (include_stack_ptr >= MAX_INCLUDE_DEPTH) |
| 460 | { |
| 461 | einfo("%F: macros nested too deeply"); |
| 462 | } |
| 463 | file_name_stack[include_stack_ptr] = "redirect"; |
| 464 | include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; |
| 465 | include_stack_ptr++; |
| 466 | tmp = yy_create_string_buffer(string, len); |
| 467 | |
| 468 | yy_switch_to_buffer(tmp); |
| 469 | BEGIN(COMMAND); |
| 470 | yyout = stdout; |
| 471 | } |
| 472 | |
| 473 | int state_stack[20]; |
| 474 | int *state_stack_p = state_stack; |
| 475 | |
| 476 | void |
| 477 | DEFUN_VOID(ldlex_script) |
| 478 | { |
| 479 | *(state_stack_p)++ = yy_start; |
| 480 | |
| 481 | BEGIN(SCRIPT); |
| 482 | } |
| 483 | |
| 484 | |
| 485 | void |
| 486 | DEFUN_VOID(ldlex_mri_script) |
| 487 | { |
| 488 | *(state_stack_p)++ = yy_start; |
| 489 | BEGIN(MRI); |
| 490 | } |
| 491 | |
| 492 | void |
| 493 | DEFUN_VOID(ldlex_defsym) |
| 494 | { |
| 495 | *(state_stack_p)++ = yy_start; |
| 496 | BEGIN(DEFSYMEXP); |
| 497 | } |
| 498 | |
| 499 | void |
| 500 | DEFUN_VOID(ldlex_expression) |
| 501 | { |
| 502 | *(state_stack_p)++ = yy_start; |
| 503 | BEGIN(EXPRESSION); |
| 504 | |
| 505 | } |
| 506 | void |
| 507 | DEFUN_VOID(ldlex_both) |
| 508 | { |
| 509 | *(state_stack_p)++ = yy_start; |
| 510 | BEGIN(BOTH); |
| 511 | } |
| 512 | void |
| 513 | DEFUN_VOID(ldlex_command) |
| 514 | { |
| 515 | *(state_stack_p)++ = yy_start; |
| 516 | BEGIN(COMMAND); |
| 517 | } |
| 518 | |
| 519 | void |
| 520 | DEFUN_VOID(ldlex_popstate) |
| 521 | { |
| 522 | yy_start = *(--state_stack_p); |
| 523 | } |
| 524 | |
| 525 | yy_input(buf, result, max_size) |
| 526 | char *buf; |
| 527 | int *result; |
| 528 | int max_size; |
| 529 | { |
| 530 | *result = 0; |
| 531 | if (yy_current_buffer->yy_input_file) |
| 532 | { |
| 533 | if (yyin) |
| 534 | if ( (*result = read( fileno(yyin), (char *) buf, max_size )) < 0 ) |
| 535 | YY_FATAL_ERROR( "read() in flex scanner failed" ); |
| 536 | } |
| 537 | } |
| 538 | |
| 539 | static |
| 540 | comment() |
| 541 | { |
| 542 | int c; |
| 543 | while (1) |
| 544 | { |
| 545 | c = input(); |
| 546 | while (c !='*' && c != EOF) |
| 547 | { |
| 548 | if (c == '\n') lineno++; |
| 549 | c = input(); |
| 550 | } |
| 551 | |
| 552 | |
| 553 | if (c == '*') |
| 554 | { |
| 555 | c = input(); |
| 556 | while ( c == '*') |
| 557 | c = input(); |
| 558 | if ( c == '/' ) |
| 559 | break; /* found the end */ |
| 560 | } |
| 561 | |
| 562 | if ( c == EOF ) |
| 563 | { |
| 564 | einfo( "%F%P :EOF in comment"); |
| 565 | break; |
| 566 | } |
| 567 | } |
| 568 | } |