usr/src/cmd/sgs/lex/common/header.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 /*      Copyright (c) 1988 AT&T */
  27 /*      All Rights Reserved     */
  28
  29 #pragma ident   "%Z%%M% %I%     %E% SMI"
  30
  31 #include "ldefs.h"
  32
  33 static void rhd1(void);
  34 static void chd1(void);
  35 static void chd2(void);
  36 static void ctail(void);
  37 static void rtail(void);
  38
  39 void
  40 phead1(void)
  41 {
  42         ratfor ? rhd1() : chd1();
  43 }
  44
  45 static void
  46 chd1(void)
  47 {
  48         if (*v_stmp == 'y')
  49                 (void) fprintf(fout, "#ident\t\"lex: %s %s\"\n",
  50                     (const char *)SGU_PKG, (const char *)SGU_REL);
  51         if (handleeuc) {
  52                 (void) fprintf(fout, "#ifndef EUC\n");
  53                 (void) fprintf(fout, "#define EUC\n");
  54                 (void) fprintf(fout, "#endif\n");
  55                 (void) fprintf(fout, "#include <stdio.h>\n");
  56                 (void) fprintf(fout, "#include <stdlib.h>\n");
  57                 (void) fprintf(fout, "#include <inttypes.h>\n");
  58                 (void) fprintf(fout, "#include <widec.h>\n");
  59                 if (widecio) { /* -w option */
  60                         (void) fprintf(fout, "#define YYTEXT yytext\n");
  61                         (void) fprintf(fout, "#define YYLENG yyleng\n");
  62                         (void) fprintf(fout, "#ifndef __cplusplus\n");
  63                         (void) fprintf(fout, "#define YYINPUT input\n");
  64                         (void) fprintf(fout, "#define YYOUTPUT output\n");
  65                         (void) fprintf(fout, "#else\n");
  66                         (void) fprintf(fout, "#define YYINPUT lex_input\n");
  67                         (void) fprintf(fout, "#define YYOUTPUT lex_output\n");
  68                         (void) fprintf(fout, "#endif\n");
  69                         (void) fprintf(fout, "#define YYUNPUT unput\n");
  70                 } else { /* -e option */
  71                         (void) fprintf(fout, "#include <limits.h>\n");
  72                         (void) fprintf(fout, "#include <sys/euc.h>\n");
  73                         (void) fprintf(fout, "#define YYLEX_E 1\n");
  74                         (void) fprintf(fout, "#define YYTEXT yywtext\n");
  75                         (void) fprintf(fout, "#define YYLENG yywleng\n");
  76                         (void) fprintf(fout, "#define YYINPUT yywinput\n");
  77                         (void) fprintf(fout, "#define YYOUTPUT yywoutput\n");
  78                         (void) fprintf(fout, "#define YYUNPUT yywunput\n");
  79                 }
  80         } else { /* ASCII compatibility mode. */
  81                 (void) fprintf(fout, "#include <stdio.h>\n");
  82                 (void) fprintf(fout, "#include <stdlib.h>\n");
  83                 (void) fprintf(fout, "#include <inttypes.h>\n");
  84         }
  85         if (ZCH > NCH)
  86                 (void) fprintf(fout, "# define U(x) ((x)&0377)\n");
  87         else
  88         (void) fprintf(fout, "# define U(x) x\n");
  89         (void) fprintf(fout, "# define NLSTATE yyprevious=YYNEWLINE\n");
  90         (void) fprintf(fout, "# define BEGIN yybgin = yysvec + 1 +\n");
  91         (void) fprintf(fout, "# define INITIAL 0\n");
  92         (void) fprintf(fout, "# define YYLERR yysvec\n");
  93         (void) fprintf(fout, "# define YYSTATE (yyestate-yysvec-1)\n");
  94         if (optim)
  95                 (void) fprintf(fout, "# define YYOPTIM 1\n");
  96 #ifdef DEBUG
  97         (void) fprintf(fout, "# define LEXDEBUG 1\n");
  98 #endif
  99         (void) fprintf(fout, "# ifndef YYLMAX \n");
 100         (void) fprintf(fout, "# define YYLMAX BUFSIZ\n");
 101         (void) fprintf(fout, "# endif \n");
 102         (void) fprintf(fout, "#ifndef __cplusplus\n");
 103         if (widecio)
 104                 (void) fprintf(fout,
 105                 "# define output(c) (void)putwc(c,yyout)\n");
 106         else
 107                 (void) fprintf(fout,
 108                 "# define output(c) (void)putc(c,yyout)\n");
 109         (void) fprintf(fout, "#else\n");
 110         if (widecio)
 111                 (void) fprintf(fout,
 112                 "# define lex_output(c) (void)putwc(c,yyout)\n");
 113         else
 114                 (void) fprintf(fout,
 115                 "# define lex_output(c) (void)putc(c,yyout)\n");
 116         (void) fprintf(fout, "#endif\n");
 117         (void) fprintf(fout,
 118         "\n#if defined(__cplusplus) || defined(__STDC__)\n");
 119         (void) fprintf(fout,
 120         "\n#if defined(__cplusplus) && defined(__EXTERN_C__)\n");
 121         (void) fprintf(fout, "extern \"C\" {\n");
 122         (void) fprintf(fout, "#endif\n");
 123         (void) fprintf(fout, "\tint yyback(int *, int);\n"); /* ? */
 124         (void) fprintf(fout, "\tint yyinput(void);\n"); /* ? */
 125         (void) fprintf(fout, "\tint yylook(void);\n"); /* ? */
 126         (void) fprintf(fout, "\tvoid yyoutput(int);\n"); /* ? */
 127         (void) fprintf(fout, "\tint yyracc(int);\n"); /* ? */
 128         (void) fprintf(fout, "\tint yyreject(void);\n"); /* ? */
 129         (void) fprintf(fout, "\tvoid yyunput(int);\n"); /* ? */
 130         (void) fprintf(fout, "\tint yylex(void);\n");
 131         (void) fprintf(fout, "#ifdef YYLEX_E\n");
 132         (void) fprintf(fout, "\tvoid yywoutput(wchar_t);\n");
 133         (void) fprintf(fout, "\twchar_t yywinput(void);\n");
 134         (void) fprintf(fout, "\tvoid yywunput(wchar_t);\n");
 135         (void) fprintf(fout, "#endif\n");
 136
 137         /* XCU4: type of yyless is int */
 138         (void) fprintf(fout, "#ifndef yyless\n");
 139         (void) fprintf(fout, "\tint yyless(int);\n");
 140         (void) fprintf(fout, "#endif\n");
 141         (void) fprintf(fout, "#ifndef yywrap\n");
 142         (void) fprintf(fout, "\tint yywrap(void);\n");
 143         (void) fprintf(fout, "#endif\n");
 144         (void) fprintf(fout, "#ifdef LEXDEBUG\n");
 145         (void) fprintf(fout, "\tvoid allprint(char);\n");
 146         (void) fprintf(fout, "\tvoid sprint(char *);\n");
 147         (void) fprintf(fout, "#endif\n");
 148         (void) fprintf(fout,
 149         "#if defined(__cplusplus) && defined(__EXTERN_C__)\n");
 150         (void) fprintf(fout, "}\n");
 151         (void) fprintf(fout, "#endif\n\n");
 152         (void) fprintf(fout, "#ifdef __cplusplus\n");
 153         (void) fprintf(fout, "extern \"C\" {\n");
 154         (void) fprintf(fout, "#endif\n");
 155         (void) fprintf(fout, "\tvoid exit(int);\n");
 156         (void) fprintf(fout, "#ifdef __cplusplus\n");
 157         (void) fprintf(fout, "}\n");
 158         (void) fprintf(fout, "#endif\n\n");
 159         (void) fprintf(fout, "#endif\n");
 160         (void) fprintf(fout,
 161         "# define unput(c)"
 162         " {yytchar= (c);if(yytchar=='\\n')yylineno--;*yysptr++=yytchar;}\n");
 163         (void) fprintf(fout, "# define yymore() (yymorfg=1)\n");
 164         if (widecio) {
 165                 (void) fprintf(fout, "#ifndef __cplusplus\n");
 166                 (void) fprintf(fout, "%s%d%s\n",
 167 "# define input() (((yytchar=yysptr>yysbuf?U(*--yysptr):getwc(yyin))==",
 168                     ctable['\n'],
 169 "?(yylineno++,yytchar):yytchar)==EOF?0:yytchar)");
 170                 (void) fprintf(fout, "#else\n");
 171                 (void) fprintf(fout, "%s%d%s\n",
 172 "# define lex_input() (((yytchar=yysptr>yysbuf?U(*--yysptr):getwc(yyin))==",
 173                     ctable['\n'],
 174 "?(yylineno++,yytchar):yytchar)==EOF?0:yytchar)");
 175                 (void) fprintf(fout, "#endif\n");
 176                 (void) fprintf(fout,
 177                 "# define ECHO (void)fprintf(yyout, \"%%ws\",yytext)\n");
 178                 (void) fprintf(fout,
 179                 "# define REJECT { nstr = yyreject_w(); goto yyfussy;}\n");
 180                 (void) fprintf(fout, "#define yyless yyless_w\n");
 181                 (void) fprintf(fout, "int yyleng;\n");
 182
 183                 /*
 184                  * XCU4:
 185                  * If %array, yytext[] contains the token.
 186                  * If %pointer, yytext is a pointer to yy_tbuf[].
 187                  */
 188
 189                 if (isArray) {
 190                         (void) fprintf(fout, "#define YYISARRAY\n");
 191                         (void) fprintf(fout, "wchar_t yytext[YYLMAX];\n");
 192                 } else {
 193                         (void) fprintf(fout, "wchar_t yy_tbuf[YYLMAX];\n");
 194                         (void) fprintf(fout, "wchar_t * yytext = yy_tbuf;\n");
 195                         (void) fprintf(fout, "int yytextsz = YYLMAX;\n");
 196                         (void) fprintf(fout, "#ifndef YYTEXTSZINC\n");
 197                         (void) fprintf(fout, "#define YYTEXTSZINC 100\n");
 198                         (void) fprintf(fout, "#endif\n");
 199                 }
 200         } else {
 201                 (void) fprintf(fout, "#ifndef __cplusplus\n");
 202                 (void) fprintf(fout, "%s%d%s\n",
 203 "# define input() (((yytchar=yysptr>yysbuf?U(*--yysptr):getc(yyin))==",
 204                     ctable['\n'],
 205 "?(yylineno++,yytchar):yytchar)==EOF?0:yytchar)");
 206                 (void) fprintf(fout, "#else\n");
 207                 (void) fprintf(fout, "%s%d%s\n",
 208 "# define lex_input() (((yytchar=yysptr>yysbuf?U(*--yysptr):getc(yyin))==",
 209                     ctable['\n'],
 210 "?(yylineno++,yytchar):yytchar)==EOF?0:yytchar)");
 211                 (void) fprintf(fout, "#endif\n");
 212                 (void) fprintf(fout,
 213                     "#define ECHO fprintf(yyout, \"%%s\",yytext)\n");
 214                 if (handleeuc) {
 215                         (void) fprintf(fout,
 216 "# define REJECT { nstr = yyreject_e(); goto yyfussy;}\n");
 217                         (void) fprintf(fout, "int yyleng;\n");
 218                         (void) fprintf(fout, "size_t yywleng;\n");
 219                         /*
 220                          * XCU4:
 221                          * If %array, yytext[] contains the token.
 222                          * If %pointer, yytext is a pointer to yy_tbuf[].
 223                          */
 224                         if (isArray) {
 225                                 (void) fprintf(fout, "#define YYISARRAY\n");
 226                                 (void) fprintf(fout,
 227                                 "unsigned char yytext[YYLMAX*MB_LEN_MAX];\n");
 228                                 (void) fprintf(fout,
 229                                 "wchar_t yywtext[YYLMAX];\n");
 230                         } else {
 231                                 (void) fprintf(fout,
 232                                 "wchar_t yy_twbuf[YYLMAX];\n");
 233                                 (void) fprintf(fout,
 234                                 "wchar_t yy_tbuf[YYLMAX*MB_LEN_MAX];\n");
 235                                 (void) fprintf(fout,
 236                                 "unsigned char * yytext ="
 237                                 "(unsigned char *)yy_tbuf;\n");
 238                                 (void) fprintf(fout,
 239                                 "wchar_t * yywtext = yy_twbuf;\n");
 240                                 (void) fprintf(fout,
 241                                     "int yytextsz = YYLMAX;\n");
 242                                 (void) fprintf(fout, "#ifndef YYTEXTSZINC\n");
 243                                 (void) fprintf(fout,
 244                                     "#define YYTEXTSZINC 100\n");
 245                                 (void) fprintf(fout, "#endif\n");
 246                         }
 247                 } else {
 248                         (void) fprintf(fout,
 249 "# define REJECT { nstr = yyreject(); goto yyfussy;}\n");
 250                         (void) fprintf(fout, "int yyleng;\n");
 251
 252                         /*
 253                          * XCU4:
 254                          * If %array, yytext[] contains the token.
 255                          * If %pointer, yytext is a pointer to yy_tbuf[].
 256                          */
 257                         if (isArray) {
 258                                 (void) fprintf(fout, "#define YYISARRAY\n");
 259                                 (void) fprintf(fout, "char yytext[YYLMAX];\n");
 260                         } else {
 261                                 (void) fprintf(fout, "char yy_tbuf[YYLMAX];\n");
 262                                 (void) fprintf(fout,
 263                                 "char * yytext = yy_tbuf;\n");
 264                                 (void) fprintf(fout,
 265                                     "int yytextsz = YYLMAX;\n");
 266                                 (void) fprintf(fout, "#ifndef YYTEXTSZINC\n");
 267                                 (void) fprintf(fout,
 268                                     "#define YYTEXTSZINC 100\n");
 269                                 (void) fprintf(fout, "#endif\n");
 270                         }
 271                 }
 272         }
 273         (void) fprintf(fout, "int yymorfg;\n");
 274         if (handleeuc)
 275                 (void) fprintf(fout, "extern wchar_t *yysptr, yysbuf[];\n");
 276         else
 277                 (void) fprintf(fout, "extern char *yysptr, yysbuf[];\n");
 278         (void) fprintf(fout, "int yytchar;\n");
 279         (void) fprintf(fout, "FILE *yyin = {stdin}, *yyout = {stdout};\n");
 280         (void) fprintf(fout, "extern int yylineno;\n");
 281         (void) fprintf(fout, "struct yysvf { \n");
 282         (void) fprintf(fout, "\tstruct yywork *yystoff;\n");
 283         (void) fprintf(fout, "\tstruct yysvf *yyother;\n");
 284         (void) fprintf(fout, "\tint *yystops;};\n");
 285         (void) fprintf(fout, "struct yysvf *yyestate;\n");
 286         (void) fprintf(fout, "extern struct yysvf yysvec[], *yybgin;\n");
 287 }
 288
 289 static void
 290 rhd1(void)
 291 {
 292         (void) fprintf(fout, "integer function yylex(dummy)\n");
 293         (void) fprintf(fout, "define YYLMAX 200\n");
 294         (void) fprintf(fout, "define ECHO call yyecho(yytext,yyleng)\n");
 295         (void) fprintf(fout,
 296         "define REJECT nstr = yyrjct(yytext,yyleng);goto 30998\n");
 297         (void) fprintf(fout, "integer nstr,yylook,yywrap\n");
 298         (void) fprintf(fout, "integer yyleng, yytext(YYLMAX)\n");
 299         (void) fprintf(fout, "common /yyxel/ yyleng, yytext\n");
 300         (void) fprintf(fout,
 301         "common /yyldat/ yyfnd, yymorf, yyprev, yybgin, yylsp, yylsta\n");
 302         (void) fprintf(fout,
 303         "integer yyfnd, yymorf, yyprev, yybgin, yylsp, yylsta(YYLMAX)\n");
 304         (void) fprintf(fout, "for(;;){\n");
 305         (void) fprintf(fout, "\t30999 nstr = yylook(dummy)\n");
 306         (void) fprintf(fout, "\tgoto 30998\n");
 307         (void) fprintf(fout, "\t30000 k = yywrap(dummy)\n");
 308         (void) fprintf(fout, "\tif(k .ne. 0){\n");
 309         (void) fprintf(fout, "\tyylex=0; return; }\n");
 310         (void) fprintf(fout, "\t\telse goto 30998\n");
 311 }
 312
 313 void
 314 phead2(void)
 315 {
 316         if (!ratfor)
 317                 chd2();
 318 }
 319
 320 static void
 321 chd2(void)
 322 {
 323         (void) fprintf(fout, "#ifdef __cplusplus\n");
 324         (void) fprintf(fout,
 325         "/* to avoid CC and lint complaining yyfussy not being used ...*/\n");
 326         (void) fprintf(fout, "static int __lex_hack = 0;\n");
 327         (void) fprintf(fout, "if (__lex_hack) goto yyfussy;\n");
 328         (void) fprintf(fout, "#endif\n");
 329         (void) fprintf(fout, "while((nstr = yylook()) >= 0)\n");
 330         (void) fprintf(fout, "yyfussy: switch(nstr){\n");
 331         (void) fprintf(fout, "case 0:\n");
 332         (void) fprintf(fout, "if(yywrap()) return(0); break;\n");
 333 }
 334
 335 void
 336 ptail(void)
 337 {
 338         if (!pflag)
 339                 ratfor ? rtail() : ctail();
 340         pflag = 1;
 341 }
 342
 343 static void
 344 ctail(void)
 345 {
 346         (void) fprintf(fout, "case -1:\nbreak;\n");             /* for reject */
 347         (void) fprintf(fout, "default:\n");
 348         (void) fprintf(fout,
 349         "(void)fprintf(yyout,\"bad switch yylook %%d\",nstr);\n");
 350         (void) fprintf(fout, "} return(0); }\n");
 351         (void) fprintf(fout, "/* end of yylex */\n");
 352 }
 353
 354 static void
 355 rtail(void)
 356 {
 357         int i;
 358         (void) fprintf(fout,
 359         "\n30998 if(nstr .lt. 0 .or. nstr .gt. %d)goto 30999\n", casecount);
 360         (void) fprintf(fout, "nstr = nstr + 1\n");
 361         (void) fprintf(fout, "goto(\n");
 362         for (i = 0; i < casecount; i++)
 363                 (void) fprintf(fout, "%d,\n", 30000+i);
 364         (void) fprintf(fout, "30999),nstr\n");
 365         (void) fprintf(fout, "30997 continue\n");
 366         (void) fprintf(fout, "}\nend\n");
 367 }
 368
 369 void
 370 statistics(void)
 371 {
 372         (void) fprintf(errorf,
 373 "%d/%d nodes(%%e), %d/%d positions(%%p), %d/%d (%%n), %ld transitions,\n",
 374             tptr, treesize, (int)(nxtpos-positions), maxpos, stnum + 1,
 375             nstates, rcount);
 376         (void) fprintf(errorf,
 377         "%d/%d packed char classes(%%k), ", (int)(pcptr-pchar), pchlen);
 378         if (optim)
 379                 (void) fprintf(errorf,
 380                 " %d/%d packed transitions(%%a), ", nptr, ntrans);
 381         (void) fprintf(errorf, " %d/%d output slots(%%o)", yytop, outsize);
 382         (void) putc('\n', errorf);
 383 }