fgen.l revision 1.33
1 %{ 2 /* $NetBSD: fgen.l,v 1.33 2009/10/29 14:49:03 christos Exp $ */ 3 /* FLEX input for FORTH input file scanner */ 4 /* 5 * Copyright (c) 1998 Eduardo Horvath. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 /* 29 Specifications are as follows: 30 31 The function "yylex()" always returns a pointer to a structure: 32 33 struct tok { 34 int type; 35 char *text; 36 } 37 #define TOKEN struct tok 38 */ 39 #include <sys/cdefs.h> 40 #ifdef HAVE_NBTOOL_CONFIG_H 41 #include "nbtool_config.h" 42 #endif 43 44 #if defined(__RCSID) && !defined(lint) 45 __RCSID("$NetBSD: fgen.l,v 1.33 2009/10/29 14:49:03 christos Exp $"); 46 #endif 47 48 %} 49 50 %option yylineno noinput 51 52 decimal [0-9.] 53 hex [0-9A-Fa-f.] 54 octal [0-7.] 55 white [ \t\n\r\f] 56 tail {white} 57 58 %{ 59 #include <sys/types.h> 60 #include <arpa/inet.h> 61 62 #include <assert.h> 63 #include <err.h> 64 #include <errno.h> 65 #include <fcntl.h> 66 #include <stdarg.h> 67 #include <stdio.h> 68 #include <string.h> 69 #include <unistd.h> 70 71 #include "fgen.h" 72 TOKEN ltoken; 73 74 /* 75 * Global variables that control the parse state. 76 */ 77 78 struct fcode *dictionary = NULL; 79 struct macro *aliases = NULL; 80 int outf = 1; /* stdout */ 81 int state = 0; 82 int nextfcode = 0x800; 83 int numbase = TOK_HEX; 84 long outpos; 85 char *outbuf = NULL; 86 char *outfile, *infile; 87 #define BUFCLICK (1024*1024) 88 size_t outbufsiz = 0; 89 char *myname = NULL; 90 int offsetsize = 8; 91 int defining = 0; 92 int tokenizer = 0; 93 94 #define PSTKSIZ 1024 95 Cell parse_stack[PSTKSIZ]; 96 int parse_stack_ptr = 0; 97 98 void token_err(int, const char *, const char *, const char *, ...) 99 __attribute__((__format__(__printf__, 4, 5))); 100 YY_DECL; 101 102 int debug = 0; 103 #define ASSERT if (debug) assert 104 #define STATE(y, x) do { if (debug) printf( "%ld State %s: token `%s'\n", outpos, x, y); } while (0) 105 106 %} 107 108 %option nounput 109 110 %% 111 112 0 { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 113 114 1 { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 115 116 2 { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 117 118 3 { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 119 120 -1 { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 121 122 \. { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 123 124 {white}* /* whitespace -- keep looping */ ; 125 126 \\[^\n]*\n /* end of line comment -- keep looping */ { STATE(yytext, "EOL comment"); } 127 128 -?{hex}+ { ltoken.type = TOK_NUMBER; ltoken.text = yytext; 129 return <oken; } 130 131 \'.\' { ltoken.type = TOK_C_LIT; ltoken.text = yytext; return <oken; } 132 133 \"{white}*(\\\"|[^"])*\" { ltoken.type = TOK_STRING_LIT; ltoken.text = yytext; 134 return <oken; } /* String started by `"' or `."' */ 135 136 \.\({white}*(\\\"|[^)])*\) { ltoken.type = TOK_PSTRING; ltoken.text = yytext; 137 return <oken; } /* String of type `.(.....)' */ 138 139 \.\"{white}*(\\\"|[^"])*\" { ltoken.type = TOK_PSTRING; ltoken.text = yytext; 140 return <oken; } 141 142 "(" { ltoken.type = TOK_COMMENT; ltoken.text = yytext; 143 return <oken; } 144 145 ")" { ltoken.type = TOK_ENDCOMMENT; ltoken.text = yytext; 146 return <oken; } 147 148 ":" { ltoken.type = TOK_COLON; ltoken.text = yytext; 149 return <oken; } 150 151 ";" { ltoken.type = TOK_SEMICOLON; ltoken.text = yytext; 152 return <oken; } 153 154 \' { ltoken.type = TOK_TOKENIZE; ltoken.text = yytext; 155 return <oken; } 156 157 [aA][gG][aA][iI][nN] { ltoken.type = TOK_AGAIN; ltoken.text = yytext; 158 return <oken; } 159 160 [aA][lL][iI][aA][sS] { ltoken.type = TOK_ALIAS; ltoken.text = yytext; 161 return <oken; } 162 163 \[\'\] { ltoken.type = TOK_GETTOKEN; ltoken.text = yytext; 164 return <oken; } 165 166 [aA][sS][cC][iI][iI] { ltoken.type = TOK_ASCII; ltoken.text = yytext; 167 return <oken; } 168 169 [bB][eE][gG][iI][nN] { ltoken.type = TOK_BEGIN; ltoken.text = yytext; 170 return <oken; } 171 172 [bB][uU][fF][fF][eE][rR]: { ltoken.type = TOK_BUFFER; ltoken.text = yytext; 173 return <oken; } 174 175 [cC][aA][sS][eE] { ltoken.type = TOK_CASE; ltoken.text = yytext; 176 return <oken; } 177 178 [cC][oO][nN][sS][tT][aA][nN][tT] { ltoken.type = TOK_CONSTANT; ltoken.text = yytext; 179 return <oken; } 180 181 [cC][oO][nN][tT][rR][oO][lL] { ltoken.type = TOK_CONTROL; ltoken.text = yytext; 182 return <oken; } 183 184 [cC][rR][eE][aA][tT][eE] { ltoken.type = TOK_CREATE; ltoken.text = yytext; 185 return <oken; } 186 187 [dD]# { ltoken.type = TOK_DECIMAL; ltoken.text = yytext; 188 return <oken; } 189 190 [dD][eE][cC][iI][mM][aA][lL] { ltoken.type = TOK_DECIMAL; ltoken.text = yytext; 191 return <oken; } 192 193 [dD][eE][fF][eE][rR] { ltoken.type = TOK_DEFER; ltoken.text = yytext; 194 return <oken; } 195 196 \??[dD][oO] { ltoken.type = TOK_DO; ltoken.text = yytext; 197 return <oken; } 198 199 [eE][lL][sS][eE] { ltoken.type = TOK_ELSE; ltoken.text = yytext; 200 return <oken; } 201 202 [eE][nN][dD][cC][aA][sS][eE] { ltoken.type = TOK_ENDCASE; ltoken.text = yytext; 203 return <oken; } 204 205 [eE][nN][dD][oO][fF] { ltoken.type = TOK_ENDOF; ltoken.text = yytext; 206 return <oken; } 207 208 [eE][xX][tT][eE][rR][nN][aA][lL] { ltoken.type = TOK_EXTERNAL; ltoken.text = yytext; 209 return <oken; } 210 211 [fF][iI][eE][lL][dD] { ltoken.type = TOK_FIELD; ltoken.text = yytext; 212 return <oken; } 213 214 [hH]# { ltoken.type = TOK_HEX; ltoken.text = yytext; 215 return <oken; } 216 217 [hH][eE][aA][dD][eE][rR][lL][eE][sS][sS] { ltoken.type = TOK_HEADERLESS; ltoken.text = yytext; 218 return <oken; } 219 220 [hH][eE][aA][dD][eE][rR][sS] { ltoken.type = TOK_HEADERS; ltoken.text = yytext; 221 return <oken; } 222 223 [hH][eE][xX] { ltoken.type = TOK_HEX; ltoken.text = yytext; 224 return <oken; } 225 226 [iI][fF] { ltoken.type = TOK_IF; ltoken.text = yytext; 227 return <oken; } 228 229 \??[lL][eE][aA][vV][eE] { ltoken.type = TOK_LEAVE; ltoken.text = yytext; 230 return <oken; } 231 232 \+?[lL][oO][oO][pP] { ltoken.type = TOK_LOOP; ltoken.text = yytext; 233 return <oken; } 234 235 [oO]# { ltoken.type = TOK_OCTAL; ltoken.text = yytext; 236 return <oken; } 237 238 [oO][cC][tT][aA][lL] { ltoken.type = TOK_OCTAL; ltoken.text = yytext; 239 return <oken; } 240 241 [oO][fF] { ltoken.type = TOK_OF; ltoken.text = yytext; 242 return <oken; } 243 244 [rR][eE][pP][eE][aA][tT] { ltoken.type = TOK_REPEAT; ltoken.text = yytext; 245 return <oken; } 246 247 [tT][hH][eE][nN] { ltoken.type = TOK_THEN; ltoken.text = yytext; 248 return <oken; } 249 250 [tT][oO] { ltoken.type = TOK_TO; ltoken.text = yytext; 251 return <oken; } 252 253 [uU][nN][tT][iI][lL] { ltoken.type = TOK_UNTIL; ltoken.text = yytext; 254 return <oken; } 255 256 [vV][aA][lL][uU][eE] { ltoken.type = TOK_VALUE; ltoken.text = yytext; 257 return <oken; } 258 259 [vV][aA][rR][iI][aA][bB][lL][eE] { ltoken.type = TOK_VARIABLE; ltoken.text = yytext; 260 return <oken; } 261 262 [wW][hH][iI][lL][eE] { ltoken.type = TOK_WHILE; ltoken.text = yytext; 263 return <oken; } 264 265 offset16 { ltoken.type = TOK_OFFSET16; ltoken.text = yytext; 266 return <oken; } 267 268 tokenizer\[ { ltoken.type = TOK_BEGTOK; ltoken.text = yytext; 269 return <oken; } 270 271 emit-byte { ltoken.type = TOK_EMIT_BYTE; ltoken.text = yytext; 272 return <oken; } 273 274 \]tokenizer { ltoken.type = TOK_ENDTOK; ltoken.text = yytext; 275 return <oken; } 276 277 fload { ltoken.type = TOK_FLOAD; ltoken.text = yytext; 278 return <oken; } 279 280 281 [^ \n\t\r\f]+ { ltoken.type = TOK_OTHER; ltoken.text = yytext; 282 return <oken; } 283 284 <<EOF>> { return NULL; } 285 %% 286 287 /* Function definitions */ 288 void push(Cell); 289 Cell pop(void); 290 int depth(void); 291 int fadd(struct fcode *, struct fcode *); 292 struct fcode *flookup(struct fcode *, const char *); 293 int aadd(struct macro *, struct macro *); 294 struct macro *alookup(struct macro *, const char *); 295 void initdic(void); 296 void usage(const char *); 297 void tokenize(YY_BUFFER_STATE); 298 int emit(const char *); 299 int spit(long); 300 void sspit(const char *); 301 int apply_macros(YY_BUFFER_STATE, const char *); 302 int main(int argc, char *argv[]); 303 Cell cvt(const char *, char **, int base); 304 305 /* 306 * Standard FCode names and numbers. Includes standard 307 * tokenizer aliases. 308 */ 309 struct fcode fcodes[] = { 310 { "end0", 0x0000, 0, NULL, NULL }, 311 { "b(lit)", 0x0010, 0, NULL, NULL }, 312 { "b(')", 0x0011, 0, NULL, NULL }, 313 { "b(\")", 0x0012, 0, NULL, NULL }, 314 { "bbranch", 0x0013, 0, NULL, NULL }, 315 { "b?branch", 0x0014, 0, NULL, NULL }, 316 { "b(loop)", 0x0015, 0, NULL, NULL }, 317 { "b(+loop)", 0x0016, 0, NULL, NULL }, 318 { "b(do)", 0x0017, 0, NULL, NULL }, 319 { "b(?do)", 0x0018, 0, NULL, NULL }, 320 { "i", 0x0019, 0, NULL, NULL }, 321 { "j", 0x001a, 0, NULL, NULL }, 322 { "b(leave)", 0x001b, 0, NULL, NULL }, 323 { "b(of)", 0x001c, 0, NULL, NULL }, 324 { "execute", 0x001d, 0, NULL, NULL }, 325 { "+", 0x001e, 0, NULL, NULL }, 326 { "-", 0x001f, 0, NULL, NULL }, 327 { "*", 0x0020, 0, NULL, NULL }, 328 { "/", 0x0021, 0, NULL, NULL }, 329 { "mod", 0x0022, 0, NULL, NULL }, 330 { "and", 0x0023, 0, NULL, NULL }, 331 { "or", 0x0024, 0, NULL, NULL }, 332 { "xor", 0x0025, 0, NULL, NULL }, 333 { "invert", 0x0026, 0, NULL, NULL }, 334 { "lshift", 0x0027, 0, NULL, NULL }, 335 { "rshift", 0x0028, 0, NULL, NULL }, 336 { ">>a", 0x0029, 0, NULL, NULL }, 337 { "/mod", 0x002a, 0, NULL, NULL }, 338 { "u/mod", 0x002b, 0, NULL, NULL }, 339 { "negate", 0x002c, 0, NULL, NULL }, 340 { "abs", 0x002d, 0, NULL, NULL }, 341 { "min", 0x002e, 0, NULL, NULL }, 342 { "max", 0x002f, 0, NULL, NULL }, 343 { ">r", 0x0030, 0, NULL, NULL }, 344 { "r>", 0x0031, 0, NULL, NULL }, 345 { "r@", 0x0032, 0, NULL, NULL }, 346 { "exit", 0x0033, 0, NULL, NULL }, 347 { "0=", 0x0034, 0, NULL, NULL }, 348 { "0<>", 0x0035, 0, NULL, NULL }, 349 { "0<", 0x0036, 0, NULL, NULL }, 350 { "0<=", 0x0037, 0, NULL, NULL }, 351 { "0>", 0x0038, 0, NULL, NULL }, 352 { "0>=", 0x0039, 0, NULL, NULL }, 353 { "<", 0x003a, 0, NULL, NULL }, 354 { ">", 0x003b, 0, NULL, NULL }, 355 { "=", 0x003c, 0, NULL, NULL }, 356 { "<>", 0x003d, 0, NULL, NULL }, 357 { "u>", 0x003e, 0, NULL, NULL }, 358 { "u<=", 0x003f, 0, NULL, NULL }, 359 { "u<", 0x0040, 0, NULL, NULL }, 360 { "u>=", 0x0041, 0, NULL, NULL }, 361 { ">=", 0x0042, 0, NULL, NULL }, 362 { "<=", 0x0043, 0, NULL, NULL }, 363 { "between", 0x0044, 0, NULL, NULL }, 364 { "within", 0x0045, 0, NULL, NULL }, 365 { "drop", 0x0046, 0, NULL, NULL }, 366 { "dup", 0x0047, 0, NULL, NULL }, 367 { "over", 0x0048, 0, NULL, NULL }, 368 { "swap", 0x0049, 0, NULL, NULL }, 369 { "rot", 0x004a, 0, NULL, NULL }, 370 { "-rot", 0x004b, 0, NULL, NULL }, 371 { "tuck", 0x004c, 0, NULL, NULL }, 372 { "nip", 0x004d, 0, NULL, NULL }, 373 { "pick", 0x004e, 0, NULL, NULL }, 374 { "roll", 0x004f, 0, NULL, NULL }, 375 { "?dup", 0x0050, 0, NULL, NULL }, 376 { "depth", 0x0051, 0, NULL, NULL }, 377 { "2drop", 0x0052, 0, NULL, NULL }, 378 { "2dup", 0x0053, 0, NULL, NULL }, 379 { "2over", 0x0054, 0, NULL, NULL }, 380 { "2swap", 0x0055, 0, NULL, NULL }, 381 { "2rot", 0x0056, 0, NULL, NULL }, 382 { "2/", 0x0057, 0, NULL, NULL }, 383 { "u2/", 0x0058, 0, NULL, NULL }, 384 { "2*", 0x0059, 0, NULL, NULL }, 385 { "/c", 0x005a, 0, NULL, NULL }, 386 { "/w", 0x005b, 0, NULL, NULL }, 387 { "/l", 0x005c, 0, NULL, NULL }, 388 { "/n", 0x005d, 0, NULL, NULL }, 389 { "ca+", 0x005e, 0, NULL, NULL }, 390 { "wa+", 0x005f, 0, NULL, NULL }, 391 { "la+", 0x0060, 0, NULL, NULL }, 392 { "na+", 0x0061, 0, NULL, NULL }, 393 { "char+", 0x0062, 0, NULL, NULL }, 394 { "wa1+", 0x0063, 0, NULL, NULL }, 395 { "la1+", 0x0064, 0, NULL, NULL }, 396 { "cell+", 0x0065, 0, NULL, NULL }, 397 { "chars", 0x0066, 0, NULL, NULL }, 398 { "/w*", 0x0067, 0, NULL, NULL }, 399 { "/l*", 0x0068, 0, NULL, NULL }, 400 { "cells", 0x0069, 0, NULL, NULL }, 401 { "on", 0x006a, 0, NULL, NULL }, 402 { "off", 0x006b, 0, NULL, NULL }, 403 { "+!", 0x006c, 0, NULL, NULL }, 404 { "@", 0x006d, 0, NULL, NULL }, 405 { "l@", 0x006e, 0, NULL, NULL }, 406 { "w@", 0x006f, 0, NULL, NULL }, 407 { "<w@", 0x0070, 0, NULL, NULL }, 408 { "c@", 0x0071, 0, NULL, NULL }, 409 { "!", 0x0072, 0, NULL, NULL }, 410 { "l!", 0x0073, 0, NULL, NULL }, 411 { "w!", 0x0074, 0, NULL, NULL }, 412 { "c!", 0x0075, 0, NULL, NULL }, 413 { "2@", 0x0076, 0, NULL, NULL }, 414 { "2!", 0x0077, 0, NULL, NULL }, 415 { "move", 0x0078, 0, NULL, NULL }, 416 { "fill", 0x0079, 0, NULL, NULL }, 417 { "comp", 0x007a, 0, NULL, NULL }, 418 { "noop", 0x007b, 0, NULL, NULL }, 419 { "lwsplit", 0x007c, 0, NULL, NULL }, 420 { "wjoin", 0x007d, 0, NULL, NULL }, 421 { "lbsplit", 0x007e, 0, NULL, NULL }, 422 { "bljoin", 0x007f, 0, NULL, NULL }, 423 { "wbflip", 0x0080, 0, NULL, NULL }, 424 { "upc", 0x0081, 0, NULL, NULL }, 425 { "lcc", 0x0082, 0, NULL, NULL }, 426 { "pack", 0x0083, 0, NULL, NULL }, 427 { "count", 0x0084, 0, NULL, NULL }, 428 { "body>", 0x0085, 0, NULL, NULL }, 429 { ">body", 0x0086, 0, NULL, NULL }, 430 { "fcode-revision", 0x0087, 0, NULL, NULL }, 431 { "span", 0x0088, 0, NULL, NULL }, 432 { "unloop", 0x0089, 0, NULL, NULL }, 433 { "expect", 0x008a, 0, NULL, NULL }, 434 { "alloc-mem", 0x008b, 0, NULL, NULL }, 435 { "free-mem", 0x008c, 0, NULL, NULL }, 436 { "key?", 0x008d, 0, NULL, NULL }, 437 { "key", 0x008e, 0, NULL, NULL }, 438 { "emit", 0x008f, 0, NULL, NULL }, 439 { "type", 0x0090, 0, NULL, NULL }, 440 { "(cr", 0x0091, 0, NULL, NULL }, 441 { "cr", 0x0092, 0, NULL, NULL }, 442 { "#out", 0x0093, 0, NULL, NULL }, 443 { "#line", 0x0094, 0, NULL, NULL }, 444 { "hold", 0x0095, 0, NULL, NULL }, 445 { "<#", 0x0096, 0, NULL, NULL }, 446 { "u#>", 0x0097, 0, NULL, NULL }, 447 { "sign", 0x0098, 0, NULL, NULL }, 448 { "u#", 0x0099, 0, NULL, NULL }, 449 { "u#s", 0x009a, 0, NULL, NULL }, 450 { "u.", 0x009b, 0, NULL, NULL }, 451 { "u.r", 0x009c, 0, NULL, NULL }, 452 { ".", 0x009d, 0, NULL, NULL }, 453 { ".r", 0x009e, 0, NULL, NULL }, 454 { ".s", 0x009f, 0, NULL, NULL }, 455 { "base", 0x00a0, 0, NULL, NULL }, 456 { "convert", 0x00a1, 0, NULL, NULL }, 457 { "$number", 0x00a2, 0, NULL, NULL }, 458 { "digit", 0x00a3, 0, NULL, NULL }, 459 { "-1", 0x00a4, 0, NULL, NULL }, 460 { "true", 0x00a4, 0, NULL, NULL }, 461 { "0", 0x00a5, 0, NULL, NULL }, 462 { "1", 0x00a6, 0, NULL, NULL }, 463 { "2", 0x00a7, 0, NULL, NULL }, 464 { "3", 0x00a8, 0, NULL, NULL }, 465 { "bl", 0x00a9, 0, NULL, NULL }, 466 { "bs", 0x00aa, 0, NULL, NULL }, 467 { "bell", 0x00ab, 0, NULL, NULL }, 468 { "bounds", 0x00ac, 0, NULL, NULL }, 469 { "here", 0x00ad, 0, NULL, NULL }, 470 { "aligned", 0x00ae, 0, NULL, NULL }, 471 { "wbsplit", 0x00af, 0, NULL, NULL }, 472 { "bwjoin", 0x00b0, 0, NULL, NULL }, 473 { "b(<mark)", 0x00b1, 0, NULL, NULL }, 474 { "b(>resolve)", 0x00b2, 0, NULL, NULL }, 475 { "set-token-table", 0x00b3, 0, NULL, NULL }, 476 { "set-table", 0x00b4, 0, NULL, NULL }, 477 { "new-token", 0x00b5, 0, NULL, NULL }, 478 { "named-token", 0x00b6, 0, NULL, NULL }, 479 { "b(:)", 0x00b7, 0, NULL, NULL }, 480 { "b(value)", 0x00b8, 0, NULL, NULL }, 481 { "b(variable)", 0x00b9, 0, NULL, NULL }, 482 { "b(constant)", 0x00ba, 0, NULL, NULL }, 483 { "b(create)", 0x00bb, 0, NULL, NULL }, 484 { "b(defer)", 0x00bc, 0, NULL, NULL }, 485 { "b(buffer:)", 0x00bd, 0, NULL, NULL }, 486 { "b(field)", 0x00be, 0, NULL, NULL }, 487 { "b(code)", 0x00bf, 0, NULL, NULL }, 488 { "instance", 0x00c0, 0, NULL, NULL }, 489 { "b(;)", 0x00c2, 0, NULL, NULL }, 490 { "b(to)", 0x00c3, 0, NULL, NULL }, 491 { "b(case)", 0x00c4, 0, NULL, NULL }, 492 { "b(endcase)", 0x00c5, 0, NULL, NULL }, 493 { "b(endof)", 0x00c6, 0, NULL, NULL }, 494 { "#", 0x00c7, 0, NULL, NULL }, 495 { "#s", 0x00c8, 0, NULL, NULL }, 496 { "#>", 0x00c9, 0, NULL, NULL }, 497 { "external-token", 0x00ca, 0, NULL, NULL }, 498 { "$find", 0x00cb, 0, NULL, NULL }, 499 { "offset16", 0x00cc, 0, NULL, NULL }, 500 { "evaluate", 0x00cd, 0, NULL, NULL }, 501 { "c,", 0x00d0, 0, NULL, NULL }, 502 { "w,", 0x00d1, 0, NULL, NULL }, 503 { "l,", 0x00d2, 0, NULL, NULL }, 504 { "'", 0x00d3, 0, NULL, NULL }, 505 { "um*", 0x00d4, 0, NULL, NULL }, 506 { "um/mod", 0x00d5, 0, NULL, NULL }, 507 { "d+", 0x00d8, 0, NULL, NULL }, 508 { "d-", 0x00d9, 0, NULL, NULL }, 509 { "get-token", 0x00da, 0, NULL, NULL }, 510 { "set-token", 0x00db, 0, NULL, NULL }, 511 { "state", 0x00dc, 0, NULL, NULL }, 512 { "compile,", 0x00dd, 0, NULL, NULL }, 513 { "behavior", 0x00de, 0, NULL, NULL }, 514 { "start0", 0x00f0, 0, NULL, NULL }, 515 { "start1", 0x00f1, 0, NULL, NULL }, 516 { "start2", 0x00f2, 0, NULL, NULL }, 517 { "start4", 0x00f3, 0, NULL, NULL }, 518 { "ferror", 0x00fc, 0, NULL, NULL }, 519 { "version1", 0x00fd, 0, NULL, NULL }, 520 { "4-byte-id", 0x00fe, 0, NULL, NULL }, 521 { "end1", 0x00ff, 0, NULL, NULL }, 522 { "dma-alloc", 0x0101, 0, NULL, NULL }, 523 { "my-address", 0x0102, 0, NULL, NULL }, 524 { "my-space", 0x0103, 0, NULL, NULL }, 525 { "memmap", 0x0104, 0, NULL, NULL }, 526 { "free-virtual", 0x0105, 0, NULL, NULL }, 527 { ">physical", 0x0106, 0, NULL, NULL }, 528 { "my-params", 0x010f, 0, NULL, NULL }, 529 { "property", 0x0110, 0, NULL, NULL }, 530 { "encode-int", 0x0111, 0, NULL, NULL }, 531 { "encode+", 0x0112, 0, NULL, NULL }, 532 { "encode-phys", 0x0113, 0, NULL, NULL }, 533 { "encode-string", 0x0114, 0, NULL, NULL }, 534 { "encode-bytes", 0x0115, 0, NULL, NULL }, 535 { "reg", 0x0116, 0, NULL, NULL }, 536 { "intr", 0x0117, 0, NULL, NULL }, 537 { "driver", 0x0118, 0, NULL, NULL }, 538 { "model", 0x0119, 0, NULL, NULL }, 539 { "device-type", 0x011a, 0, NULL, NULL }, 540 { "parse-2int", 0x011b, 0, NULL, NULL }, 541 { "is-install", 0x011c, 0, NULL, NULL }, 542 { "is-remove", 0x011d, 0, NULL, NULL }, 543 { "is-selftest", 0x011e, 0, NULL, NULL }, 544 { "new-device", 0x011f, 0, NULL, NULL }, 545 { "diagnostic-mode?", 0x0120, 0, NULL, NULL }, 546 { "display-status", 0x0121, 0, NULL, NULL }, 547 { "memory-test-suite", 0x0122, 0, NULL, NULL }, 548 { "group-code", 0x0123, 0, NULL, NULL }, 549 { "mask", 0x0124, 0, NULL, NULL }, 550 { "get-msecs", 0x0125, 0, NULL, NULL }, 551 { "ms", 0x0126, 0, NULL, NULL }, 552 { "find-device", 0x0127, 0, NULL, NULL }, 553 { "decode-phys", 0x0128, 0, NULL, NULL }, 554 { "map-low", 0x0130, 0, NULL, NULL }, 555 { "sbus-intr>cpu", 0x0131, 0, NULL, NULL }, 556 { "#lines", 0x0150, 0, NULL, NULL }, 557 { "#columns", 0x0151, 0, NULL, NULL }, 558 { "line#", 0x0152, 0, NULL, NULL }, 559 { "column#", 0x0153, 0, NULL, NULL }, 560 { "inverse?", 0x0154, 0, NULL, NULL }, 561 { "inverse-screen?", 0x0155, 0, NULL, NULL }, 562 { "frame-buffer-busy?", 0x0156, 0, NULL, NULL }, 563 { "draw-character", 0x0157, 0, NULL, NULL }, 564 { "reset-screen", 0x0158, 0, NULL, NULL }, 565 { "toggle-cursor", 0x0159, 0, NULL, NULL }, 566 { "erase-screen", 0x015a, 0, NULL, NULL }, 567 { "blink-screen", 0x015b, 0, NULL, NULL }, 568 { "invert-screen", 0x015c, 0, NULL, NULL }, 569 { "insert-characters", 0x015d, 0, NULL, NULL }, 570 { "delete-characters", 0x015e, 0, NULL, NULL }, 571 { "insert-lines", 0x015f, 0, NULL, NULL }, 572 { "delete-lines", 0x0160, 0, NULL, NULL }, 573 { "draw-logo", 0x0161, 0, NULL, NULL }, 574 { "frame-buffer-addr", 0x0162, 0, NULL, NULL }, 575 { "screen-height", 0x0163, 0, NULL, NULL }, 576 { "screen-width", 0x0164, 0, NULL, NULL }, 577 { "window-top", 0x0165, 0, NULL, NULL }, 578 { "window-left", 0x0166, 0, NULL, NULL }, 579 { "default-font", 0x016a, 0, NULL, NULL }, 580 { "set-font", 0x016b, 0, NULL, NULL }, 581 { "char-height", 0x016c, 0, NULL, NULL }, 582 { "char-width", 0x016d, 0, NULL, NULL }, 583 { ">font", 0x016e, 0, NULL, NULL }, 584 { "fontbytes", 0x016f, 0, NULL, NULL }, 585 { "fb8-draw-character", 0x0180, 0, NULL, NULL }, 586 { "fb8-reset-screen", 0x0181, 0, NULL, NULL }, 587 { "fb8-toggle-cursor", 0x0182, 0, NULL, NULL }, 588 { "fb8-erase-screen", 0x0183, 0, NULL, NULL }, 589 { "fb8-blink-screen", 0x0184, 0, NULL, NULL }, 590 { "fb8-invert-screen", 0x0185, 0, NULL, NULL }, 591 { "fb8-insert-characters", 0x0186, 0, NULL, NULL }, 592 { "fb8-delete-characters", 0x0187, 0, NULL, NULL }, 593 { "fb8-inisert-lines", 0x0188, 0, NULL, NULL }, 594 { "fb8-delete-lines", 0x0189, 0, NULL, NULL }, 595 { "fb8-draw-logo", 0x018a, 0, NULL, NULL }, 596 { "fb8-install", 0x018b, 0, NULL, NULL }, 597 { "return-buffer", 0x01a0, 0, NULL, NULL }, 598 { "xmit-packet", 0x01a1, 0, NULL, NULL }, 599 { "poll-packet", 0x01a2, 0, NULL, NULL }, 600 { "mac-address", 0x01a4, 0, NULL, NULL }, 601 { "device-name", 0x0201, 0, NULL, NULL }, 602 { "my-args", 0x0202, 0, NULL, NULL }, 603 { "my-self", 0x0203, 0, NULL, NULL }, 604 { "find-package", 0x0204, 0, NULL, NULL }, 605 { "open-package", 0x0205, 0, NULL, NULL }, 606 { "close-package", 0x0206, 0, NULL, NULL }, 607 { "find-method", 0x0207, 0, NULL, NULL }, 608 { "call-package", 0x0208, 0, NULL, NULL }, 609 { "$call-parent", 0x0209, 0, NULL, NULL }, 610 { "my-parent", 0x020a, 0, NULL, NULL }, 611 { "ihandle>phandle", 0x020b, 0, NULL, NULL }, 612 { "my-unit", 0x020d, 0, NULL, NULL }, 613 { "$call-method", 0x020e, 0, NULL, NULL }, 614 { "$open-package", 0x020f, 0, NULL, NULL }, 615 { "processor-type", 0x0210, 0, NULL, NULL }, 616 { "firmware-version", 0x0211, 0, NULL, NULL }, 617 { "fcode-version", 0x0212, 0, NULL, NULL }, 618 { "alarm", 0x0213, 0, NULL, NULL }, 619 { "(is-user-word)", 0x0214, 0, NULL, NULL }, 620 { "suspend-fcode", 0x0215, 0, NULL, NULL }, 621 { "abort", 0x0216, 0, NULL, NULL }, 622 { "catch", 0x0217, 0, NULL, NULL }, 623 { "throw", 0x0218, 0, NULL, NULL }, 624 { "user-abort", 0x0219, 0, NULL, NULL }, 625 { "get-my-property", 0x021a, 0, NULL, NULL }, 626 { "decode-int", 0x021b, 0, NULL, NULL }, 627 { "decode-string", 0x021c, 0, NULL, NULL }, 628 { "get-inherited-property", 0x021d, 0, NULL, NULL }, 629 { "delete-property", 0x021e, 0, NULL, NULL }, 630 { "get-package-property", 0x021f, 0, NULL, NULL }, 631 { "cpeek", 0x0220, 0, NULL, NULL }, 632 { "wpeek", 0x0221, 0, NULL, NULL }, 633 { "lpeek", 0x0222, 0, NULL, NULL }, 634 { "cpoke", 0x0223, 0, NULL, NULL }, 635 { "wpoke", 0x0224, 0, NULL, NULL }, 636 { "lpoke", 0x0225, 0, NULL, NULL }, 637 { "lwflip", 0x0226, 0, NULL, NULL }, 638 { "lbflip", 0x0227, 0, NULL, NULL }, 639 { "lbflips", 0x0228, 0, NULL, NULL }, 640 { "adr-mask", 0x0229, 0, NULL, NULL }, 641 { "rb@", 0x0230, 0, NULL, NULL }, 642 { "rb!", 0x0231, 0, NULL, NULL }, 643 { "rw@", 0x0232, 0, NULL, NULL }, 644 { "rw!", 0x0233, 0, NULL, NULL }, 645 { "rl@", 0x0234, 0, NULL, NULL }, 646 { "rl!", 0x0235, 0, NULL, NULL }, 647 { "wbflips", 0x0236, 0, NULL, NULL }, 648 { "lwflips", 0x0237, 0, NULL, NULL }, 649 { "probe", 0x0238, 0, NULL, NULL }, 650 { "probe-virtual", 0x0239, 0, NULL, NULL }, 651 { "child", 0x023b, 0, NULL, NULL }, 652 { "peer", 0x023c, 0, NULL, NULL }, 653 { "next-property", 0x023d, 0, NULL, NULL }, 654 { "byte-load", 0x023e, 0, NULL, NULL }, 655 { "set-args", 0x023f, 0, NULL, NULL }, 656 { "left-parse-string", 0x0240, 0, NULL, NULL }, 657 /* 64-bit FCode extensions */ 658 { "bxjoin", 0x0241, 0, NULL, NULL }, 659 { "<l@", 0x0242, 0, NULL, NULL }, 660 { "lxjoin", 0x0243, 0, NULL, NULL }, 661 { "rx@", 0x022e, 0, NULL, NULL }, 662 { "rx!", 0x022f, 0, NULL, NULL }, 663 { "wxjoin", 0x0244, 0, NULL, NULL }, 664 { "x,", 0x0245, 0, NULL, NULL }, 665 { "x@", 0x0246, 0, NULL, NULL }, 666 { "x!", 0x0247, 0, NULL, NULL }, 667 { "/x", 0x0248, 0, NULL, NULL }, 668 { "/x*", 0x0249, 0, NULL, NULL }, 669 { "xa+", 0x024a, 0, NULL, NULL }, 670 { "xa1+", 0x024b, 0, NULL, NULL }, 671 { "xbflip", 0x024c, 0, NULL, NULL }, 672 { "xbflips", 0x024d, 0, NULL, NULL }, 673 { "xbsplit", 0x024e, 0, NULL, NULL }, 674 { "xlflip", 0x024f, 0, NULL, NULL }, 675 { "xlflips", 0x0250, 0, NULL, NULL }, 676 { "xlsplit", 0x0251, 0, NULL, NULL }, 677 { "xwflip", 0x0252, 0, NULL, NULL }, 678 { "xwflips", 0x0253, 0, NULL, NULL }, 679 { "xwsplit", 0x0254, 0, NULL, NULL }, 680 { NULL, 0, 0, NULL, NULL } 681 }; 682 683 /* 684 * Default macros -- can be overridden by colon definitions. 685 */ 686 struct macro macros[] = { 687 { "eval", "evaluate", 0, NULL, NULL }, /* Build a more balanced tree */ 688 { "(.)", "dup abs <# u#s swap sign u#>", 0, NULL, NULL }, 689 { "<<", "lshift", 0, NULL, NULL }, 690 { ">>", "rshift", 0, NULL, NULL }, 691 { "?", "@ .", 0, NULL, NULL }, 692 { "1+", "1 +", 0, NULL, NULL }, 693 { "1-", "1 -", 0, NULL, NULL }, 694 { "2+", "2 +", 0, NULL, NULL }, 695 { "2-", "2 -", 0, NULL, NULL }, 696 { "abort\"", "-2 throw", 0, NULL, NULL }, 697 { "accept", "span @ -rot expect span @ swap span !", 0, NULL, NULL }, 698 { "allot", "0 max 0 ?do 0 c, loop", 0, NULL, NULL }, 699 { "blank", "bl fill", 0, NULL, NULL }, 700 { "/c*", "chars", 0, NULL, NULL }, 701 { "ca1+", "char+", 0, NULL, NULL }, 702 { "carret", "b(lit) 00 00 00 0x0d", 0, NULL, NULL }, 703 { ".d", "base @ swap 0x0a base ! . base !", 0, NULL, NULL }, 704 { "decode-bytes", ">r over r@ + swap r@ - rot r>", 0, NULL, NULL }, 705 { "3drop", "drop 2drop", 0, NULL, NULL }, 706 { "3dup", "2 pick 2 pick 2 pick", 0, NULL, NULL }, 707 { "erase", "0 fill", 0, NULL, NULL }, 708 { "false", "0", 0, NULL, NULL }, 709 { ".h", "base @ swap 0x10 base ! . base !", 0, NULL, NULL }, 710 { "linefeed", "b(lit) 00 00 00 0x0a", 0, NULL, NULL }, 711 { "/n*", "cells", 0, NULL, NULL }, 712 { "na1+", "cell+", 0, NULL, NULL }, 713 { "not", "invert", 0, NULL, NULL }, 714 { "s.", "(.) type space", 0, NULL, NULL }, 715 { "space", "bl emit", 0, NULL, NULL }, 716 { "spaces", "0 max 0 ?do space loop", 0, NULL, NULL }, 717 { "struct", "0", 0, NULL, NULL }, 718 { "true", "-1", 0, NULL, NULL }, 719 { "(u,)", "<# u#s u#>", 0, NULL, NULL }, 720 { NULL, NULL, 0, NULL, NULL } 721 }; 722 723 /* 724 * Utility functions. 725 */ 726 727 /* 728 * ASCII -> long int converter, eats `.'s 729 */ 730 #define strtol(x, y, z) cvt(x, y, z) 731 Cell 732 cvt(const char *s, char **e, int base) 733 { 734 Cell v = 0; 735 int c, n = 0; 736 737 c = *s; 738 if (c == '-') { n = 1; s++; } 739 740 for (c = *s; (c = *s); s++) { 741 742 /* Ignore `.' */ 743 if (c == '.') 744 continue; 745 if (c >= '0' && c <= '9') 746 c -= '0'; 747 else if (c >= 'a' && c <= 'f') 748 c += 10 - 'a'; 749 else if (c >= 'A' && c <= 'F') 750 c += 10 - 'A'; 751 if (c >= base) 752 break; 753 v *= base; 754 v += c; 755 } 756 if (e) 757 *e = __UNCONST(s); 758 if (n) 759 return (-v); 760 return (v); 761 } 762 763 /* 764 * Parser stack control functions. 765 */ 766 767 void 768 push(Cell val) 769 { 770 parse_stack[parse_stack_ptr++] = val; 771 if (parse_stack_ptr >= PSTKSIZ) { 772 (void)printf( "Parse stack overflow\n"); 773 exit(1); 774 } 775 } 776 777 Cell 778 pop(void) 779 { 780 ASSERT(parse_stack_ptr); 781 return parse_stack[--parse_stack_ptr]; 782 } 783 784 int 785 depth(void) 786 { 787 return (parse_stack_ptr); 788 } 789 790 /* 791 * Insert fcode into dictionary. 792 */ 793 int 794 fadd(struct fcode *dict, struct fcode *new) 795 { 796 int res = strcmp(dict->name, new->name); 797 798 #ifdef DEBUG 799 new->type = FCODE; 800 ASSERT(dict->type == FCODE); 801 #endif 802 /* Don't allow duplicate entries. */ 803 if (!res) return (0); 804 if (res < 0) { 805 if (dict->l) 806 return fadd(dict->l, new); 807 else { 808 #ifdef DEBUG 809 if (debug > 1) 810 (void)printf( "fadd: new FCode `%s' is %lx\n", 811 new->name, new->num); 812 #endif 813 new->l = new->r = NULL; 814 dict->l = new; 815 } 816 } else { 817 if (dict->r) 818 return fadd(dict->r, new); 819 else { 820 #ifdef DEBUG 821 if (debug > 1) 822 (void)printf( "fadd: new FCode `%s' is %lx\n", 823 new->name, new->num); 824 #endif 825 new->l = new->r = NULL; 826 dict->r = new; 827 } 828 } 829 return (1); 830 } 831 832 /* 833 * Look for a code in the dictionary. 834 */ 835 struct fcode * 836 flookup(struct fcode *dict, const char *str) 837 { 838 int res; 839 if (!dict) return (dict); 840 841 res = strcmp(dict->name, str); 842 #ifdef DEBUG 843 ASSERT(dict->type == FCODE); 844 if (debug > 2) 845 (void)printf( "flookup: `%s' and `%s' %s match\n", 846 str, dict->name, res?"don't":"do"); 847 #endif 848 if (!res) return (dict); 849 if (res < 0) 850 return (flookup(dict->l, str)); 851 else 852 return (flookup(dict->r, str)); 853 854 } 855 856 /* 857 * Insert alias into macros. 858 */ 859 int 860 aadd(struct macro *dict, struct macro *new) 861 { 862 int res = strcmp(dict->name, new->name); 863 864 #ifdef DEBUG 865 new->type = MACRO; 866 ASSERT(dict->type == MACRO); 867 #endif 868 /* Don't allow duplicate entries. */ 869 if (!res) return (0); 870 if (res < 0) { 871 if (dict->l) 872 return aadd(dict->l, new); 873 else { 874 new->l = new->r = NULL; 875 dict->l = new; 876 #ifdef DEBUG 877 if (debug > 1) 878 (void)printf( "aadd: new alias `%s' to `%s'\n", 879 new->name, new->equiv); 880 #endif 881 } 882 } else { 883 if (dict->r) 884 return aadd(dict->r, new); 885 else { 886 new->l = new->r = NULL; 887 dict->r = new; 888 #ifdef DEBUG 889 if (debug > 1) 890 (void)printf( "aadd: new alias `%s' to `%s'\n", 891 new->name, new->equiv); 892 #endif 893 } 894 } 895 return (1); 896 } 897 898 /* 899 * Look for a macro in the aliases. 900 */ 901 struct macro * 902 alookup(struct macro *dict, const char *str) 903 { 904 int res; 905 if (!dict) return (dict); 906 907 #ifdef DEBUG 908 ASSERT(dict->type == MACRO); 909 #endif 910 res = strcmp(dict->name, str); 911 if (!res) return (dict); 912 if (res < 0) 913 return (alookup(dict->l, str)); 914 else 915 return (alookup(dict->r, str)); 916 917 } 918 919 /* 920 * Bootstrap the dictionary and then install 921 * all the standard FCodes. 922 */ 923 void 924 initdic(void) 925 { 926 struct fcode *code = fcodes; 927 struct macro *alias = macros; 928 929 ASSERT(dictionary == NULL); 930 code->l = code->r = NULL; 931 dictionary = code; 932 #ifdef DEBUG 933 code->type = FCODE; 934 #endif 935 936 while ((++code)->name) { 937 if(!fadd(dictionary, code)) { 938 printf("init: duplicate dictionary entry %s\n", 939 code->name); 940 abort(); 941 } 942 } 943 944 ASSERT(aliases == NULL); 945 aliases = alias; 946 alias->l = alias->r = NULL; 947 #ifdef DEBUG 948 alias->type = MACRO; 949 #endif 950 while ((++alias)->name) { 951 if(!aadd(aliases, alias)) { 952 printf("init: duplicate macro entry %s\n", 953 alias->name); 954 abort(); 955 } 956 } 957 958 } 959 960 int 961 apply_macros(YY_BUFFER_STATE yinput, const char *str) 962 { 963 struct macro *xform = alookup(aliases, str); 964 965 if (xform) { 966 YY_BUFFER_STATE newbuf; 967 968 newbuf = yy_scan_string(xform->equiv); 969 yy_switch_to_buffer(newbuf); 970 tokenize(newbuf); 971 yy_switch_to_buffer(yinput); 972 yy_delete_buffer(newbuf); 973 } 974 return (xform != NULL); 975 } 976 977 void 978 usage(const char *me) 979 { 980 (void)fprintf(stderr, "%s: [-d level] [-o outfile] infile\n", me); 981 exit(1); 982 } 983 984 int 985 main(int argc, char *argv[]) 986 { 987 int bflag, ch; 988 FILE *inf; 989 struct fcode_header *fheader; 990 YY_BUFFER_STATE inbuf; 991 const char *hdrtype = "version1"; 992 int i; 993 994 outf = 1; /* stdout */ 995 myname = argv[0]; 996 997 bflag = 0; 998 while ((ch = getopt(argc, argv, "d:o:")) != -1) 999 switch(ch) { 1000 case 'd': 1001 debug = atol(optarg); 1002 break; 1003 case 'o': 1004 outfile = optarg; 1005 break; 1006 default: 1007 usage(myname); 1008 } 1009 argc -= optind; 1010 argv += optind; 1011 1012 if (argc != 1) 1013 usage(myname); 1014 1015 infile = argv[0]; 1016 1017 /* 1018 * Initialization stuff. 1019 */ 1020 initdic(); 1021 outbufsiz = BUFCLICK; 1022 outbuf = malloc(outbufsiz); 1023 fheader = (struct fcode_header *)outbuf; 1024 outpos = 0; 1025 emit(hdrtype); 1026 outpos = sizeof(*fheader); 1027 1028 /* 1029 * Do it. 1030 */ 1031 if ((inf = fopen(infile, "r")) == NULL) 1032 (void)err(1, "can not open %s for reading", infile); 1033 1034 inbuf = yy_create_buffer( inf, YY_BUF_SIZE ); 1035 yy_switch_to_buffer(inbuf); 1036 tokenize(inbuf); 1037 yy_delete_buffer(inbuf); 1038 fclose(inf); 1039 emit("end0"); 1040 1041 /* Now calculate length and checksum and stick them in the header */ 1042 fheader->format = 0x08; 1043 fheader->length = htonl(outpos); 1044 fheader->checksum = 0; 1045 for (i = sizeof(*fheader); i<outpos; i++) 1046 fheader->checksum += outbuf[i]; 1047 fheader->checksum = htons(fheader->checksum); 1048 1049 if ((outf = open(outfile, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) 1050 err(1, "can out open %s for writing", outfile); 1051 1052 if (write(outf, outbuf, outpos) != outpos) { 1053 close(outf); 1054 unlink(outfile); 1055 err(1, "write error"); 1056 } 1057 close(outf); 1058 return (0); 1059 }; 1060 1061 /* 1062 * Tokenize one file. This is a separate function so it can 1063 * be called recursively to parse mutiple levels of include files. 1064 */ 1065 1066 void 1067 tokenize(YY_BUFFER_STATE yinput) 1068 { 1069 FILE *inf; 1070 YY_BUFFER_STATE inbuf; 1071 TOKEN *token; 1072 const char *last_token = ""; 1073 struct fcode *fcode; 1074 int pos, off; 1075 1076 while ((token = yylex()) != NULL) { 1077 switch (token->type) { 1078 case TOK_NUMBER: 1079 STATE(token->text, "TOK_NUMBER"); 1080 { 1081 char *end; 1082 Cell value; 1083 1084 if (tokenizer) { 1085 push(strtol(token->text, &end, 16)); 1086 break; 1087 } 1088 value = strtol(token->text, &end, numbase); 1089 if (*end != 0) 1090 token_err(yylineno, infile, yytext, 1091 "illegal number conversion"); 1092 1093 /* 1094 * If this is a 64-bit value we need to store two literals 1095 * and issue a `lxjoin' to combine them. But that's a future 1096 * project. 1097 */ 1098 emit("b(lit)"); 1099 spit((value>>24)&0x0ff); 1100 spit((value>>16)&0x0ff); 1101 spit((value>>8)&0x0ff); 1102 spit(value&0x0ff); 1103 if ((value>>32) != value && (value>>32) != 0 && 1104 (value>>32) != -1) { 1105 emit("b(lit)"); 1106 spit((value>>56)&0x0ff); 1107 spit((value>>48)&0x0ff); 1108 spit((value>>40)&0x0ff); 1109 spit((value>>32)&0x0ff); 1110 emit("lxjoin"); 1111 } 1112 } 1113 break; 1114 case TOK_C_LIT: 1115 STATE(token->text, "TOK_C_LIT"); 1116 emit("b(lit)"); 1117 spit(0); 1118 spit(0); 1119 spit(0); 1120 spit(token->text[1]); 1121 break; 1122 case TOK_STRING_LIT: 1123 STATE(token->text, "TOK_STRING_LIT:"); 1124 { 1125 int len; 1126 char *p = token->text; 1127 1128 ++p; /* Skip the quote */ 1129 len = strlen(++p); /* Skip the 1st space */ 1130 1131 #define ERR_TOOLONG \ 1132 token_err(yylineno, infile, yytext, "string length %d too long", len) 1133 1134 if (len > 255) 1135 ERR_TOOLONG; 1136 1137 if (p[len-1] == ')' || 1138 p[len-1] == '"') { 1139 p[len-1] = 0; 1140 } 1141 emit("b(\")"); 1142 sspit(p); 1143 } 1144 break; 1145 case TOK_PSTRING: 1146 STATE(token->text, "TOK_PSTRING:"); 1147 { 1148 int len; 1149 char *p = token->text; 1150 1151 if (*p++ == '.') p++; /* Skip over delimiter */ 1152 p++; /* Skip over space/tab */ 1153 1154 len = strlen(p); 1155 if (len > 255) 1156 ERR_TOOLONG; 1157 1158 if (p[len-1] == ')' || 1159 p[len-1] == '"') { 1160 p[len-1] = 0; 1161 } 1162 emit("b(\")"); 1163 sspit(p); 1164 emit("type"); 1165 } 1166 break; 1167 case TOK_TOKENIZE: 1168 STATE(token->text, "TOK_TOKENIZE"); 1169 /* The next pass should tokenize the FCODE number */ 1170 emit("b(')"); 1171 break; 1172 case TOK_COMMENT: 1173 STATE(token->text, "TOK_COMMENT:"); 1174 while (((token = yylex()) != NULL) && token->type != TOK_ENDCOMMENT) 1175 ; 1176 break; 1177 case TOK_ENDCOMMENT: 1178 STATE(token->text, "TOK_ENDCOMMENT"); 1179 token_err(yylineno, infile, NULL, 1180 "ENDCOMMENT encountered outside comment"); 1181 break; 1182 case TOK_COLON: 1183 STATE(token->text, "TOK_COLON:"); 1184 1185 token = yylex(); 1186 if (token == NULL) 1187 token_err(yylineno, infile, yytext, 1188 "EOF in colon definition"); 1189 1190 /* Add new code to dictionary */ 1191 fcode = malloc(sizeof(*fcode)); 1192 fcode->num = nextfcode++; 1193 fcode->name = strdup(token->text); 1194 if (!fadd(dictionary, fcode)) 1195 token_err(yylineno, infile, NULL, 1196 "Duplicate definition: `%s'\n", fcode->name); 1197 #ifdef DEBUG 1198 if (debug) 1199 (void)printf("Adding %s to dictionary\n", token->text); 1200 #endif 1201 if (state == 0) 1202 emit("new-token"); 1203 else { 1204 if (state == TOK_EXTERNAL) 1205 emit("external-token"); 1206 else 1207 /* Here we have a choice of new-token or named-token */ 1208 emit("named-token"); 1209 sspit(token->text); 1210 } 1211 spit(fcode->num); 1212 emit("b(:)"); 1213 last_token = fcode->name; 1214 defining = 1; 1215 break; 1216 case TOK_SEMICOLON: 1217 STATE(token->text, "TOK_SEMICOLON:"); 1218 emit("b(;)"); 1219 defining = 0; 1220 if (depth()) { 1221 token_err(yylineno, infile, NULL, 1222 "Warning: stack depth %d at end of %s\n", 1223 depth(), last_token); 1224 } 1225 last_token = ""; 1226 break; 1227 1228 /* These are special */ 1229 case TOK_AGAIN: 1230 STATE(token->text, "TOK_AGAIN"); 1231 emit("bbranch"); 1232 pos = pop(); 1233 pos -= outpos; 1234 if (offsetsize == 16) { 1235 spit((pos>>8)&0xff); 1236 } 1237 spit(pos&0xff); 1238 break; 1239 case TOK_ALIAS: 1240 STATE(token->text, "TOK_ALIAS"); 1241 { 1242 struct macro *alias; 1243 1244 token = yylex(); 1245 if (token == NULL) { 1246 (void)printf( "EOF in alias definition\n"); 1247 return; 1248 } 1249 if (token->type != TOK_OTHER) { 1250 (void)printf( "ENDCOMMENT aliasing weird token type %d\n", 1251 token->type); 1252 } 1253 alias = malloc(sizeof(*alias)); 1254 alias->name = strdup(token->text); 1255 token = yylex(); 1256 if (token == NULL) { 1257 free(__UNCONST(alias->name)); 1258 free(alias); 1259 (void)printf( "EOF in alias definition\n"); 1260 return; 1261 } 1262 alias->equiv = strdup(token->text); 1263 if (!aadd(aliases, alias)) { 1264 (void)printf( "ERROR: Duplicate alias %s\n", 1265 alias->name); 1266 exit(1); 1267 } 1268 } 1269 break; 1270 case TOK_GETTOKEN: 1271 STATE(token->text, "TOK_GETTOKEN"); 1272 /* This is caused by ['] */ 1273 emit("b(')"); 1274 token = yylex(); 1275 if (token == NULL) { 1276 (void)printf( "EOF in [']\n"); 1277 return; 1278 } 1279 if ((fcode = flookup(dictionary, token->text)) == NULL) { 1280 (void)printf( "[']: %s not found\n", token->text); 1281 exit(1); 1282 } 1283 spit(fcode->num); 1284 break; 1285 case TOK_ASCII: 1286 STATE(token->text, "TOK_ASCII"); 1287 token = yylex(); 1288 if (token == NULL) { 1289 (void)printf( "EOF after \"ascii\"\n"); 1290 exit(1); 1291 } 1292 emit("b(lit)"); 1293 spit(0); 1294 spit(0); 1295 spit(0); 1296 spit(token->text[0]); 1297 break; 1298 case TOK_BEGIN: 1299 STATE(token->text, "TOK_BEGIN"); 1300 emit("b(<mark)"); 1301 push(outpos); 1302 break; 1303 case TOK_BUFFER: 1304 STATE(token->text, "TOK_BUFFER"); 1305 1306 token = yylex(); 1307 if (token == NULL) { 1308 (void)printf( "EOF in colon definition\n"); 1309 return; 1310 } 1311 1312 /* Add new code to dictionary */ 1313 fcode = malloc(sizeof(*fcode)); 1314 fcode->num = nextfcode++; 1315 fcode->name = strdup(token->text); 1316 fadd(dictionary, fcode); 1317 1318 if (state == 0) 1319 emit("new-token"); 1320 else { 1321 if (state == TOK_EXTERNAL) 1322 emit("external-token"); 1323 else 1324 /* Here we have a choice of new-token or named-token */ 1325 emit("named-token"); 1326 sspit(token->text); 1327 } 1328 spit(fcode->num); 1329 emit("b(buffer:)"); 1330 break; 1331 case TOK_CASE: 1332 STATE(token->text, "TOK_CASE"); 1333 emit("b(case)"); 1334 push(0); 1335 break; 1336 case TOK_CONSTANT: 1337 STATE(token->text, "TOK_CONSTANT"); 1338 1339 token = yylex(); 1340 if (token == NULL) { 1341 (void)printf( "EOF in constant definition\n"); 1342 return; 1343 } 1344 1345 /* Add new code to dictionary */ 1346 fcode = malloc(sizeof(*fcode)); 1347 fcode->num = nextfcode++; 1348 fcode->name = strdup(token->text); 1349 fadd(dictionary, fcode); 1350 1351 if (state == 0) 1352 emit("new-token"); 1353 else { 1354 if (state == TOK_EXTERNAL) 1355 emit("external-token"); 1356 else 1357 /* Here we have a choice of new-token or named-token */ 1358 emit("named-token"); 1359 sspit(token->text); 1360 } 1361 spit(fcode->num); 1362 emit("b(constant)"); 1363 break; 1364 case TOK_CONTROL: 1365 STATE(token->text, "TOK_CONTROL"); 1366 token = yylex(); 1367 if (token == NULL) { 1368 (void)printf( "EOF after \"ascii\"\n"); 1369 exit(1); 1370 } 1371 emit("b(lit)"); 1372 spit(0); 1373 spit(0); 1374 spit(0); 1375 spit(token->text[0]&0x1f); 1376 break; 1377 case TOK_CREATE: 1378 STATE(token->text, "TOK_CREATE"); 1379 /* Don't know what this does or if it's right */ 1380 token = yylex(); 1381 if (token == NULL) { 1382 (void)printf( "EOF in create definition\n"); 1383 return; 1384 } 1385 1386 /* Add new code to dictionary */ 1387 fcode = malloc(sizeof(*fcode)); 1388 fcode->num = nextfcode++; 1389 fcode->name = strdup(token->text); 1390 fadd(dictionary, fcode); 1391 1392 if (state == 0) 1393 emit("new-token"); 1394 else { 1395 if (state == TOK_EXTERNAL) 1396 emit("external-token"); 1397 else 1398 /* Here we have a choice of new-token or named-token */ 1399 emit("named-token"); 1400 sspit(token->text); 1401 } 1402 spit(fcode->num); 1403 emit("b(create)"); 1404 break; 1405 case TOK_DECIMAL: 1406 STATE(token->text, "TOK_DECIMAL"); 1407 if (token->text[1] != '#') { 1408 if (defining) { 1409 spit(10); 1410 emit("base"); 1411 emit("!"); 1412 } else 1413 numbase = TOK_DECIMAL; 1414 } else { 1415 char *end; 1416 Cell value; 1417 1418 token = yylex(); 1419 if (token == NULL) { 1420 (void)printf( "EOF after d#\n"); 1421 return; 1422 } 1423 if (token->type == TOK_OTHER) { 1424 if (strcmp("-1", token->text) == 0) { 1425 emit(token->text); 1426 break; 1427 } 1428 } 1429 value = strtol(token->text, &end, 10); 1430 if (*end != 0) 1431 token_err(yylineno, infile, NULL, 1432 "Illegal number conversion: %s", token->text); 1433 1434 /* 1435 * If this is a 64-bit value we need to store two literals 1436 * and issue a `lxjoin' to combine them. But that's a future 1437 * project. 1438 */ 1439 emit("b(lit)"); 1440 spit((value>>24)&0x0ff); 1441 spit((value>>16)&0x0ff); 1442 spit((value>>8)&0x0ff); 1443 spit(value&0x0ff); 1444 if ((value>>32) != value && (value>>32) != 0) { 1445 emit("b(lit)"); 1446 spit((value>>56)&0x0ff); 1447 spit((value>>48)&0x0ff); 1448 spit((value>>40)&0x0ff); 1449 spit((value>>32)&0x0ff); 1450 emit("lxjoin"); 1451 } 1452 } 1453 break; 1454 case TOK_DEFER: 1455 STATE(token->text, "TOK_DEFER"); 1456 /* Don't know what this does or if it's right */ 1457 token = yylex(); 1458 if (token == NULL) { 1459 (void)printf( "EOF in colon definition\n"); 1460 return; 1461 } 1462 1463 /* Add new code to dictionary */ 1464 fcode = malloc(sizeof(*fcode)); 1465 fcode->num = nextfcode++; 1466 fcode->name = strdup(token->text); 1467 fadd(dictionary, fcode); 1468 1469 if (state == 0) 1470 emit("new-token"); 1471 else { 1472 if (state == TOK_EXTERNAL) 1473 emit("external-token"); 1474 else 1475 /* Here we have a choice of new-token or named-token */ 1476 emit("named-token"); 1477 sspit(token->text); 1478 } 1479 spit(fcode->num); 1480 emit("b(defer)"); 1481 break; 1482 case TOK_DO: 1483 STATE(token->text, "TOK_DO"); 1484 /* 1485 * From the 1275 spec. B is branch location, T is branch target. 1486 * 1487 * b(do) offset1 ... b(loop) offset2 ... 1488 * b(do) offset1 ... b(+loop) offset2 ... 1489 * b(?do) offset1 ... b(loop) offset2 ... 1490 * b(?do) offset1 ... b(+loop) offset2 ... 1491 * ^ ^ 1492 * B1 ^ ^ T1 1493 * T2 B2 1494 * 1495 * How we do this is we generate the b(do) or b(?do), spit out a 1496 * zero offset while remembering b1 and t2. Then we call tokenize() 1497 * to generate the body. When tokenize() finds a b(loop) or b(+loop), 1498 * it generates the FCode and returns, with outpos at b2. We then 1499 * calculate the offsets, put them in the right slots and finishup. 1500 */ 1501 1502 if (token->text[0] == '?') 1503 emit("b(?do)"); 1504 else 1505 emit("b(do)"); 1506 push(outpos); 1507 if (offsetsize == 16) { 1508 spit(0); 1509 } 1510 spit(0); /* Place holder for later */ 1511 push(outpos); 1512 break; 1513 case TOK_ELSE: 1514 STATE(token->text, "TOK_ELSE"); 1515 /* Get where we need to patch */ 1516 off = pop(); 1517 emit("bbranch"); 1518 /* Save where we are now. */ 1519 push(outpos); 1520 if (offsetsize == 16) { 1521 spit(0); /* Place holder for later */ 1522 } 1523 spit(0); /* Place holder for later */ 1524 emit("b(>resolve)"); 1525 /* Rewind and patch the if branch */ 1526 pos = outpos; 1527 outpos = off; 1528 off = pos - off; 1529 if (offsetsize == 16) { 1530 spit(0); /* Place holder for later */ 1531 } 1532 spit(0); /* Place holder for later */ 1533 /* revert to the end */ 1534 outpos = pos; 1535 break; 1536 case TOK_ENDCASE: 1537 STATE(token->text, "TOK_ENDCASE:"); 1538 pos = outpos; /* Remember where we need to branch to */ 1539 1540 /* Thread our way backwards and install proper offsets */ 1541 off = pop(); 1542 while (off) { 1543 int tmp; 1544 1545 /* Move to this offset */ 1546 outpos = off; 1547 /* Load next offset to process */ 1548 tmp = outbuf[outpos]; 1549 1550 /* process this offset */ 1551 off = pos - outpos; 1552 if (offsetsize == 16) { 1553 spit((off>>8)&0xff); 1554 } 1555 spit(off&0xff); 1556 off = tmp; 1557 } 1558 outpos = pos; 1559 emit("b(endcase)"); 1560 break; 1561 case TOK_ENDOF: 1562 STATE(token->text, "TOK_ENDOF"); 1563 off = pop(); 1564 emit("b(endof)"); 1565 /* 1566 * Save back pointer in the offset field so we can traverse 1567 * the linked list and patch it in the endcase. 1568 */ 1569 pos = pop(); /* get position of prev link. */ 1570 push(outpos); /* save position of this link. */ 1571 spit(pos); /* save potision of prev link. */ 1572 if (offsetsize == 16) { 1573 spit(0); 1574 } 1575 pos = outpos; 1576 /* Now point the offset from b(of) here. */ 1577 outpos = off; 1578 off = outpos - off; 1579 if (offsetsize == 16) { 1580 spit((off>>8)&0xff); 1581 } 1582 spit(off&0xff); 1583 /* Restore position */ 1584 outpos = pos; 1585 break; 1586 case TOK_EXTERNAL: 1587 STATE(token->text, "TOK_EXTERNAL"); 1588 state = TOK_EXTERNAL; 1589 break; 1590 case TOK_FIELD: 1591 STATE(token->text, "TOK_FIELD"); 1592 1593 token = yylex(); 1594 if (token == NULL) { 1595 (void)printf( "EOF in field definition\n"); 1596 return; 1597 } 1598 1599 /* Add new code to dictionary */ 1600 fcode = malloc(sizeof(*fcode)); 1601 fcode->num = nextfcode++; 1602 fcode->name = strdup(token->text); 1603 fadd(dictionary, fcode); 1604 1605 if (state == 0) 1606 emit("new-token"); 1607 else { 1608 if (state == TOK_EXTERNAL) 1609 emit("external-token"); 1610 else 1611 /* Here we have a choice of new-token or named-token */ 1612 emit("named-token"); 1613 sspit(token->text); 1614 } 1615 spit(fcode->num); 1616 emit("b(field)"); 1617 break; 1618 1619 case TOK_HEX: 1620 STATE(token->text, "TOK_HEX"); 1621 if (token->text[1] != '#') { 1622 if (defining) { 1623 spit(16); 1624 emit("base"); 1625 emit("!"); 1626 } else 1627 numbase = TOK_HEX; 1628 } else { 1629 char *end; 1630 Cell value; 1631 1632 token = yylex(); 1633 if (token == NULL) { 1634 (void)printf( "EOF after h#\n"); 1635 return; 1636 } 1637 value = strtol(token->text, &end, 16); 1638 if (*end != 0) { 1639 (void)printf("Illegal number conversion:%s:%d: %s\n", 1640 infile, yylineno, yytext); 1641 exit(1); 1642 } 1643 /* 1644 * If this is a 64-bit value we need to store two literals 1645 * and issue a `lxjoin' to combine them. But that's a future 1646 * project. 1647 */ 1648 emit("b(lit)"); 1649 spit((value>>24)&0x0ff); 1650 spit((value>>16)&0x0ff); 1651 spit((value>>8)&0x0ff); 1652 spit(value&0x0ff); 1653 if ((value>>32) != value && (value>>32) != 0) { 1654 emit("b(lit)"); 1655 spit((value>>56)&0x0ff); 1656 spit((value>>48)&0x0ff); 1657 spit((value>>40)&0x0ff); 1658 spit((value>>32)&0x0ff); 1659 emit("lxjoin"); 1660 } 1661 } 1662 break; 1663 case TOK_HEADERLESS: 1664 STATE(token->text, "TOK_HEADERLESS"); 1665 state = 0; 1666 break; 1667 case TOK_HEADERS: 1668 STATE(token->text, "TOK_HEADERS"); 1669 state = TOK_HEADERS; 1670 break; 1671 case TOK_OFFSET16: 1672 STATE(token->text, "TOK_OFFSET16"); 1673 offsetsize = 16; 1674 emit("offset16"); 1675 break; 1676 case TOK_IF: 1677 STATE(token->text, "TOK_IF"); 1678 /* 1679 * Similar to do but simpler since we only deal w/one branch. 1680 */ 1681 emit("b?branch"); 1682 push(outpos); 1683 if (offsetsize == 16) { 1684 spit(0); /* Place holder for later */ 1685 } 1686 spit(0); /* Place holder for later */ 1687 break; 1688 case TOK_LEAVE: 1689 STATE(token->text, "TOK_LEAVE"); 1690 emit("b(leave)"); 1691 break; 1692 case TOK_LOOP: 1693 STATE(token->text, "TOK_LOOP"); 1694 1695 if (token->text[0] == '+') 1696 emit("b(+loop)"); 1697 else 1698 emit("b(loop)"); 1699 /* First do backwards branch of loop */ 1700 pos = pop(); 1701 off = pos - outpos; 1702 if (offsetsize == 16) { 1703 spit((off>>8)&0xff); 1704 } 1705 spit(off&0xff); 1706 /* Now do forward branch of do */ 1707 pos = outpos; 1708 outpos = pop(); 1709 off = pos - outpos; 1710 if (offsetsize == 16) { 1711 spit((off>>8)&0xff); 1712 } 1713 spit(off&0xff); 1714 /* Restore output position */ 1715 outpos = pos; 1716 break; 1717 case TOK_OCTAL: 1718 STATE(token->text, "TOK_OCTAL"); 1719 if (token->text[1] != '#') { 1720 if (defining) { 1721 spit(16); 1722 emit("base"); 1723 emit("!"); 1724 } else 1725 numbase = TOK_OCTAL; 1726 } else { 1727 char *end; 1728 Cell value; 1729 1730 token = yylex(); 1731 if (token == NULL) { 1732 (void)printf( "EOF after o#\n"); 1733 return; 1734 } 1735 value = strtol(token->text, &end, 8); 1736 if (*end != 0) { 1737 (void)printf("Illegal number conversion:%s:%d: %s\n", 1738 infile, yylineno, yytext); 1739 exit(1); 1740 } 1741 /* 1742 * If this is a 64-bit value we need to store two literals 1743 * and issue a `lxjoin' to combine them. But that's a future 1744 * project. 1745 */ 1746 emit("b(lit)"); 1747 spit((value>>24)&0x0ff); 1748 spit((value>>16)&0x0ff); 1749 spit((value>>8)&0x0ff); 1750 spit(value&0x0ff); 1751 if ((value>>32) != value && (value>>32) != 0) { 1752 emit("b(lit)"); 1753 spit((value>>56)&0x0ff); 1754 spit((value>>48)&0x0ff); 1755 spit((value>>40)&0x0ff); 1756 spit((value>>32)&0x0ff); 1757 emit("lxjoin"); 1758 } 1759 } 1760 break; 1761 case TOK_OF: 1762 STATE(token->text, "TOK_OF"); 1763 /* 1764 * Let's hope I get the semantics right. 1765 * 1766 * The `of' behaves almost the same as an 1767 * `if'. The difference is that `endof' 1768 * takes a branch offset to the associated 1769 * `endcase'. Here we will generate a temporary 1770 * offset of the `of' associated with the `endof'. 1771 * Then in `endcase' we should be pointing just 1772 * after the offset of the last `endof' so we 1773 * calculate the offset and thread our way backwards 1774 * searching for the previous `b(case)' or `b(endof)'. 1775 */ 1776 emit("b(of)"); 1777 push(outpos); 1778 if (offsetsize == 16) { 1779 spit(0); 1780 } 1781 spit(0); /* Place holder for later */ 1782 break; 1783 case TOK_REPEAT: 1784 STATE(token->text, "TOK_REPEAT"); 1785 emit("bbranch"); 1786 pos = pop(); 1787 off = pop(); 1788 /* First the offset for the branch back to the begin */ 1789 off -= outpos; 1790 if (offsetsize == 16) { 1791 spit((off>>8)&0xff); 1792 } 1793 spit(off&0xff); 1794 emit("b(>resolve)"); 1795 /* Now point the offset of the while here. */ 1796 off = outpos; 1797 outpos = pos; 1798 pos = off - pos; 1799 if (offsetsize == 16) { 1800 spit((pos>>8)&0xff); 1801 } 1802 spit(pos&0xff); 1803 /* Return to the end of the output */ 1804 outpos = off; 1805 break; 1806 case TOK_THEN: 1807 STATE(token->text, "TOK_THEN"); 1808 emit("b(>resolve)"); 1809 pos = outpos; 1810 outpos = pop(); 1811 off = pos - outpos; 1812 if (offsetsize == 16) { 1813 spit((off>>8)&0xff); 1814 } 1815 spit(off&0xff); 1816 outpos = pos; 1817 break; 1818 case TOK_TO: 1819 STATE(token->text, "TOK_TO"); 1820 /* The next pass should tokenize the FCODE number */ 1821 emit("b(to)"); 1822 break; 1823 case TOK_UNTIL: 1824 STATE(token->text, "TOK_UNTIL"); 1825 emit("b?branch"); 1826 pos = pop(); 1827 pos -= outpos; 1828 if (offsetsize == 16) { 1829 spit((pos>>8)&0xff); 1830 } 1831 spit(pos&0xff); 1832 break; 1833 case TOK_VALUE: 1834 STATE(token->text, "TOK_VALUE"); 1835 1836 token = yylex(); 1837 if (token == NULL) { 1838 (void)printf( "EOF in value definition\n"); 1839 return; 1840 } 1841 1842 /* Add new code to dictionary */ 1843 fcode = malloc(sizeof(*fcode)); 1844 fcode->num = nextfcode++; 1845 fcode->name = strdup(token->text); 1846 fadd(dictionary, fcode); 1847 1848 if (state == 0) 1849 emit("new-token"); 1850 else { 1851 if (state == TOK_EXTERNAL) 1852 emit("external-token"); 1853 else 1854 /* Here we have a choice of new-token or named-token */ 1855 emit("named-token"); 1856 sspit(token->text); 1857 } 1858 spit(fcode->num); 1859 emit("b(value)"); 1860 break; 1861 case TOK_VARIABLE: 1862 STATE(token->text, "TOK_VARIABLE"); 1863 1864 token = yylex(); 1865 if (token == NULL) { 1866 (void)printf( "EOF in variable definition\n"); 1867 return; 1868 } 1869 1870 /* Add new code to dictionary */ 1871 fcode = malloc(sizeof(*fcode)); 1872 fcode->num = nextfcode++; 1873 fcode->name = strdup(token->text); 1874 fadd(dictionary, fcode); 1875 1876 if (state == 0) 1877 emit("new-token"); 1878 else { 1879 if (state == TOK_EXTERNAL) 1880 emit("external-token"); 1881 else 1882 /* Here we have a choice of new-token or named-token */ 1883 emit("named-token"); 1884 sspit(token->text); 1885 } 1886 spit(fcode->num); 1887 emit("b(variable)"); 1888 break; 1889 case TOK_WHILE: 1890 STATE(token->text, "TOK_WHILE"); 1891 emit("b?branch"); 1892 push(outpos); 1893 if (offsetsize == 16) { 1894 spit(0); 1895 } 1896 spit(0); 1897 break; 1898 1899 /* Tokenizer directives */ 1900 case TOK_BEGTOK: 1901 STATE(token->text, "TOK_BEGTOK"); 1902 tokenizer = 1; 1903 break; 1904 case TOK_EMIT_BYTE: 1905 STATE(token->text, "TOK_EMIT_BYTE"); 1906 spit(pop()); 1907 break; 1908 case TOK_ENDTOK: 1909 STATE(token->text, "TOK_ENDTOK"); 1910 tokenizer = 0; 1911 break; 1912 case TOK_FLOAD: 1913 STATE(token->text, "TOK_FLOAD"); 1914 /* Parse a different file for a while */ 1915 token = yylex(); 1916 if ((inf = fopen(token->text, "r")) == NULL) { 1917 (void)printf("%s: Could not open %s: %s\n", 1918 myname, token->text, strerror(errno)); 1919 break; 1920 } 1921 inbuf = yy_create_buffer(inf, YY_BUF_SIZE); 1922 yy_switch_to_buffer(inbuf); 1923 { 1924 char *oldinfile = infile; 1925 1926 infile = token->text; 1927 tokenize(inbuf); 1928 infile = oldinfile; 1929 } 1930 yy_switch_to_buffer(yinput); 1931 yy_delete_buffer(inbuf); 1932 fclose(inf); 1933 break; 1934 case TOK_OTHER: 1935 STATE(token->text, "TOK_OTHER"); 1936 if (apply_macros(yinput, token->text)) 1937 break; 1938 if (emit(token->text)) { 1939 #if 0 1940 /* 1941 * Call an external command 1942 * 1943 * XXXXX assumes it will always find the command 1944 */ 1945 sspit(token->text); 1946 emit("$find"); 1947 emit("drop"); 1948 emit("execute"); 1949 #else 1950 (void)printf( "%s: undefined token `%s'\n", 1951 myname, token->text); 1952 fflush(stderr); 1953 exit(1); 1954 #endif 1955 } 1956 break; 1957 default: 1958 /* Nothing */ ; 1959 } 1960 } 1961 return; 1962 } 1963 1964 /* 1965 * print a tokenizer error message 1966 */ 1967 void 1968 token_err(int lineno, const char *file, const char *text, const char *fmt, ...) 1969 { 1970 va_list ap; 1971 1972 va_start(ap, fmt); 1973 if (file) 1974 (void)fprintf(stderr, "%s:%d: ", file, lineno); 1975 if (fmt) 1976 (void)vfprintf(stderr, fmt, ap); 1977 fputc('\n', stderr); 1978 if (text) 1979 fprintf(stderr, "\t%s", text); 1980 va_end(ap); 1981 exit(1); 1982 } 1983 1984 /* 1985 * Lookup fcode string in dictionary and spit it out. 1986 * 1987 * Fcode must be in dictionary. No alias conversion done. 1988 */ 1989 int 1990 emit(const char *str) 1991 { 1992 struct fcode *code; 1993 if ((code = flookup( dictionary, str))) 1994 spit(code->num); 1995 #ifdef DEBUG 1996 if (debug > 1) { 1997 if (code) 1998 (void)printf( "emitting `%s'\n", code->name); 1999 else 2000 (void)printf( "emit: not found `%s'\n", str); 2001 } 2002 #endif 2003 return (code == NULL); 2004 } 2005 2006 /* 2007 * Spit out an integral value as a series of FCodes. 2008 * 2009 * It will spit out one zero byte or as many bytes as are 2010 * non-zero. 2011 */ 2012 int 2013 spit(long n) 2014 { 2015 int count = 1; 2016 2017 if (n >> 8) 2018 count += spit(n >> 8); 2019 if ((size_t)outpos >= outbufsiz) { 2020 while ((size_t)outpos >= outbufsiz) outbufsiz += BUFCLICK; 2021 if (!(outbuf = realloc(outbuf, outbufsiz))) { 2022 (void)printf( "realloc of %ld bytes failed -- out of memory\n", 2023 (long)outbufsiz); 2024 exit(1); 2025 } 2026 } 2027 if (debug > 1) printf("spitting %2.2x\n", (unsigned char)n); 2028 outbuf[outpos++] = n; 2029 return (count); 2030 } 2031 2032 /* 2033 * Spit out an FCode string. 2034 */ 2035 void 2036 sspit(const char *s) 2037 { 2038 int len = strlen(s); 2039 2040 if (len > 255) { 2041 (void)printf( "string length %d too long\n", len); 2042 return; 2043 } 2044 #ifdef DEBUG 2045 if (debug > 1) 2046 (void)printf( "sspit: len %d str `%s'\n", len, s); 2047 #endif 2048 spit(len); 2049 while (*s) 2050 spit(*s++); 2051 } 2052 2053 int 2054 yywrap(void) 2055 { 2056 /* Always generate EOF */ 2057 return (1); 2058 } 2059
Indexes created Thu Oct 02 14:10:14 GMT 2025