2.11BSD#431 - /usr/src/bin/tcsh/mkprstr.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #ifndef lint
   8: char copyright[] =
   9: "@(#) Copyright (c) 1980 Regents of the University of California.\n\
  10:  All rights reserved.\n";
  11: #endif not lint
  12: 
  13: #ifndef lint
  14: static char sccsid[] = "@(#)mkstr.c	5.1 (Berkeley) 5/31/85";
  15: #endif not lint
  16: 
  17: #include <stdio.h>
  18: 
  19: #define ungetchar(c)    ungetc(c, stdin)
  20: 
  21: long    ftell();
  22: char    *calloc();
  23: /*
  24:  * mkstr - create a string error message file by massaging C source
  25:  *
  26:  * Bill Joy UCB August 1977
  27:  *
  28:  * Modified March 1978 to hash old messages to be able to recomp_
  29:  * without addding messages to the message file (usually)
  30:  *
  31:  * Based on an earlier program conceived by Bill Joy and Chuck Haley
  32:  *
  33:  * Program to create a string error message file
  34:  * from a group of C programs.  Arguments are the name
  35:  * of the file where the strings are to be placed, the
  36:  * prefix of the new files where the processed source text
  37:  * is to be placed, and the files to be processed.
  38:  *
  39:  * The program looks for 'xprintf("' in the source stream.
  40:  * Whenever it finds this, the following characters from the '"'
  41:  * to a '"' are replaced by 'seekpt' where seekpt is a
  42:  * pointer into the error message file.
  43:  * If the '(' is not immediately followed by a '"' no change occurs.
  44:  *
  45:  * The optional '-' causes strings to be added at the end of the
  46:  * existing error message file for recompilation of single routines.
  47:  */
  48: 
  49: 
  50: FILE    *mesgread, *mesgwrite;
  51: char    *progname;
  52: char    usagestr[] =    "usage: %s [ - ] mesgfile prefix file ...\n";
  53: char    name[100], *np;
  54: 
  55: main(argc, argv)
  56:     int argc;
  57:     char *argv[];
  58: {
  59:     char addon = 0;
  60: 
  61:     argc--, progname = *argv++;
  62:     if (argc > 1 && argv[0][0] == '-')
  63:         addon++, argc--, argv++;
  64:     if (argc < 3)
  65:         fprintf(stderr, usagestr, progname), exit(1);
  66:     mesgwrite = fopen(argv[0], addon ? "a" : "w");
  67:     if (mesgwrite == NULL)
  68:         perror(argv[0]), exit(1);
  69:     mesgread = fopen(argv[0], "r");
  70:     if (mesgread == NULL)
  71:         perror(argv[0]), exit(1);
  72:     inithash();
  73:     argc--, argv++;
  74:     strcpy(name, argv[0]);
  75:     np = name + strlen(name);
  76:     argc--, argv++;
  77:     do {
  78:         strcpy(np, argv[0]);
  79:         if (freopen(name, "w", stdout) == NULL)
  80:             perror(name), exit(1);
  81:         if (freopen(argv[0], "r", stdin) == NULL)
  82:             perror(argv[0]), exit(1);
  83:         process();
  84:         argc--, argv++;
  85:     } while (argc > 0);
  86:     exit(0);
  87: }
  88: 
  89: process()
  90: {
  91:     register char *cp;
  92:     register c;
  93: 
  94:     for (;;) {
  95:         c = getchar();
  96:         if (c == EOF)
  97:             return;
  98:         if (c != 'x') {
  99:             putchar(c);
 100:             continue;
 101:         }
 102:         if (match("xprintf(")) {
 103:             c = getchar();
 104:             if (c != '"') {
 105:                 printf("xprintf(");
 106:                 putchar(c);
 107:             }
 108:             else
 109:                 copystr();
 110:         }
 111:     }
 112: }
 113: 
 114: match(ocp)
 115:     char *ocp;
 116: {
 117:     register char *cp;
 118:     register c;
 119: 
 120:     for (cp = ocp + 1; *cp; cp++) {
 121:         c = getchar();
 122:         if (c != *cp) {
 123:             while (ocp < cp)
 124:                 putchar(*ocp++);
 125:             ungetchar(c);
 126:             return (0);
 127:         }
 128:     }
 129:     return (1);
 130: }
 131: 
 132: copystr()
 133: {
 134:     register c, ch;
 135:     char buf[512];
 136:     char obuf[512];
 137:     register char *cp;
 138:     register char *obufp;
 139: 
 140:     cp = buf;
 141:     obufp = obuf;
 142:     for (;;) {
 143:         c = getchar();
 144:         if (c == EOF)
 145:             break;
 146:         *obufp++ = c; /* save copy */
 147:         switch (c) {
 148: 
 149:         case '"':
 150:             /* jpn: skip it all if string < 6 chars */
 151:             if ( (obufp - obuf) < 6 ) {
 152:                 *obufp = 0;
 153:                 printf("xprintf(\"%s", obuf);
 154:                 return;
 155:             }
 156:             *cp++ = 0;
 157:             goto out;
 158:         case '\\':
 159:             c = getchar();
 160:             *obufp++ = c; /* save copy */
 161:             switch (c) {
 162: 
 163:             case 'b':
 164:                 c = '\b';
 165:                 break;
 166:             case 't':
 167:                 c = '\t';
 168:                 break;
 169:             case 'r':
 170:                 c = '\r';
 171:                 break;
 172:             case 'n':
 173:                 c = '\n';
 174:                 break;
 175:             case '\n':
 176:                 continue;
 177:             case 'f':
 178:                 c = '\f';
 179:                 break;
 180:             case '\\':
 181:                 break;
 182:             default:
 183:                 if (!octdigit(c))
 184:                     break;
 185:                 c -= '0';
 186:                 ch = getchar();
 187:                 *obufp++ = ch; /* save copy */
 188:                 if (!octdigit(ch))
 189:                     break;
 190:                 c <<= 3, c += ch - '0';
 191:                 ch = getchar();
 192:                 *obufp++ = ch; /* save copy */
 193:                 if (!octdigit(ch))
 194:                     break;
 195:                 c <<= 3, c += ch - '0';
 196:                 break;
 197:             }
 198:         }
 199:         *cp++ = c;
 200:     }
 201: out:
 202:     *cp = 0;
 203:     printf("mkprintf(%d", hashit(buf, 1, NULL));
 204:     return;
 205: }
 206: 
 207: octdigit(c)
 208:     char c;
 209: {
 210: 
 211:     return (c >= '0' && c <= '7');
 212: }
 213: 
 214: inithash()
 215: {
 216:     char buf[512];
 217:     int mesgpt = 0;
 218: 
 219:     rewind(mesgread);
 220:     while (fgetNUL(buf, sizeof buf, mesgread) != NULL) {
 221:         hashit(buf, 0, mesgpt);
 222:         mesgpt += strlen(buf) + 2;
 223:     }
 224: }
 225: 
 226: #define NBUCKETS    511
 227: 
 228: struct  hash {
 229:     long    hval;
 230:     unsigned hpt;
 231:     struct  hash *hnext;
 232: } *bucket[NBUCKETS];
 233: 
 234: hashit(str, really, fakept)
 235:     char *str;
 236:     char really;
 237:     unsigned fakept;
 238: {
 239:     int i;
 240:     register struct hash *hp;
 241:     char buf[512];
 242:     long hshval = 0;
 243:     register char *cp;
 244: 
 245:     if (really)
 246:         fflush(mesgwrite);
 247:     for (cp = str; *cp;)
 248:         hshval = (hshval << 1) + *cp++;
 249:     i = hshval % NBUCKETS;
 250:     if (i < 0)
 251:         i += NBUCKETS;
 252:     if (really != 0)
 253:         for (hp = bucket[i]; hp != 0; hp = hp->hnext)
 254:         if (hp->hval == hshval) {
 255:             fseek(mesgread, (long) hp->hpt, 0);
 256:             fgetNUL(buf, sizeof buf, mesgread);
 257: /*
 258: 			fprintf(stderr, "Got (from %d) %s\n", hp->hpt, buf);
 259: */
 260:             if (strcmp(buf, str) == 0)
 261:                 break;
 262:         }
 263:     if (!really || hp == 0) {
 264:         hp = (struct hash *) calloc(1, sizeof *hp);
 265:         hp->hnext = bucket[i];
 266:         hp->hval = hshval;
 267:         hp->hpt = really ? ftell(mesgwrite) : fakept;
 268:         if (really) {
 269:             fwrite(str, sizeof (char), strlen(str) + 1, mesgwrite);
 270:             fwrite("\n", sizeof (char), 1, mesgwrite);
 271:         }
 272:         bucket[i] = hp;
 273:     }
 274: /*
 275: 	fprintf(stderr, "%s hashed to %ld at %d\n", str, hp->hval, hp->hpt);
 276: */
 277:     return (hp->hpt);
 278: }
 279: 
 280: #include <sys/types.h>
 281: #include <sys/stat.h>
 282: 
 283: fgetNUL(obuf, rmdr, file)
 284:     char *obuf;
 285:     register int rmdr;
 286:     FILE *file;
 287: {
 288:     register c;
 289:     register char *buf = obuf;
 290: 
 291:     while (--rmdr > 0 && (c = getc(file)) != 0 && c != EOF)
 292:         *buf++ = c;
 293:     *buf++ = 0;
 294:     getc(file);
 295:     return ((feof(file) || ferror(file)) ? NULL : 1);
 296: }

Defined functions

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