# 2.11BSD#431 - /usr/src/ucb/mkstr.c

##### Functions

    copystr           X
    fgetNUL           X
    hashit            X
    inithash          X
    main              X
    match             X
    octdigit          X
    process           X

##### Variables

    bucket            X
    copyright         X
    name              X
    np                X
    progname          X
    usagestr          X

##### Macros

    NBUCKETS          X
    ungetchar         X

##### struct's

    hash              X

       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 recompile
      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 'error("' 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 != 'e') {
      99:             putchar(c);
     100:             continue;
     101:         }
     102:         if (match("error(")) {
     103:             printf("error(");
     104:             c = getchar();
     105:             if (c != '"')
     106:                 putchar(c);
     107:             else
     108:                 copystr();
     109:         }
     110:     }
     111: }
     112:
     113: match(ocp)
     114:     char *ocp;
     115: {
     116:     register char *cp;
     117:     register c;
     118:
     119:     for (cp = ocp + 1; *cp; cp++) {
     120:         c = getchar();
     121:         if (c != *cp) {
     122:             while (ocp < cp)
     123:                 putchar(*ocp++);
     124:             ungetchar(c);
     125:             return (0);
     126:         }
     127:     }
     128:     return (1);
     129: }
     130:
     131: copystr()
     132: {
     133:     register c, ch;
     134:     char buf[512];
     135:     register char *cp = buf;
     136:
     137:     for (;;) {
     138:         c = getchar();
     139:         if (c == EOF)
     140:             break;
     141:         switch (c) {
     142:
     143:         case '"':
     144:             *cp++ = 0;
     145:             goto out;
     146:         case '\\':
     147:             c = getchar();
     148:             switch (c) {
     149:
     150:             case 'b':
     151:                 c = '\b';
     152:                 break;
     153:             case 't':
     154:                 c = '\t';
     155:                 break;
     156:             case 'r':
     157:                 c = '\r';
     158:                 break;
     159:             case 'n':
     160:                 c = '\n';
     161:                 break;
     162:             case '\n':
     163:                 continue;
     164:             case 'f':
     165:                 c = '\f';
     166:                 break;
     167:             case '\\':
     168:                 break;
     169:             default:
     170:                 if (!octdigit(c))
     171:                     break;
     172:                 c -= '0';
     173:                 ch = getchar();
     174:                 if (!octdigit(ch))
     175:                     break;
     176:                 c <<= 3, c += ch - '0';
     177:                 ch = getchar();
     178:                 if (!octdigit(ch))
     179:                     break;
     180:                 c <<= 3, c += ch - '0';
     181:                 break;
     182:             }
     183:         }
     184:         *cp++ = c;
     185:     }
     186: out:
     187:     *cp = 0;
     188:     printf("%d", hashit(buf, 1, NULL));
     189: }
     190:
     191: octdigit(c)
     192:     char c;
     193: {
     194:
     195:     return (c >= '0' && c <= '7');
     196: }
     197:
     198: inithash()
     199: {
     200:     char buf[512];
     201:     int mesgpt = 0;
     202:
     203:     rewind(mesgread);
     204:     while (fgetNUL(buf, sizeof buf, mesgread) != NULL) {
     205:         hashit(buf, 0, mesgpt);
     206:         mesgpt += strlen(buf) + 2;
     207:     }
     208: }
     209:
     210: #define NBUCKETS    511
     211:
     212: struct  hash {
     213:     long    hval;
     214:     unsigned hpt;
     215:     struct  hash *hnext;
     216: } *bucket[NBUCKETS];
     217:
     218: hashit(str, really, fakept)
     219:     char *str;
     220:     char really;
     221:     unsigned fakept;
     222: {
     223:     int i;
     224:     register struct hash *hp;
     225:     char buf[512];
     226:     long hashval = 0;
     227:     register char *cp;
     228:
     229:     if (really)
     230:         fflush(mesgwrite);
     231:     for (cp = str; *cp;)
     232:         hashval = (hashval << 1) + *cp++;
     233:     i = hashval % NBUCKETS;
     234:     if (i < 0)
     235:         i += NBUCKETS;
     236:     if (really != 0)
     237:         for (hp = bucket[i]; hp != 0; hp = hp->hnext)
     238:         if (hp->hval == hashval) {
     239:             fseek(mesgread, (long) hp->hpt, 0);
     240:             fgetNUL(buf, sizeof buf, mesgread);
     241: /*
     242: 			fprintf(stderr, "Got (from %d) %s\n", hp->hpt, buf);
     243: */
     244:             if (strcmp(buf, str) == 0)
     245:                 break;
     246:         }
     247:     if (!really || hp == 0) {
     248:         hp = (struct hash *) calloc(1, sizeof *hp);
     249:         hp->hnext = bucket[i];
     250:         hp->hval = hashval;
     251:         hp->hpt = really ? ftell(mesgwrite) : fakept;
     252:         if (really) {
     253:             fwrite(str, sizeof (char), strlen(str) + 1, mesgwrite);
     254:             fwrite("\n", sizeof (char), 1, mesgwrite);
     255:         }
     256:         bucket[i] = hp;
     257:     }
     258: /*
     259: 	fprintf(stderr, "%s hashed to %ld at %d\n", str, hp->hval, hp->hpt);
     260: */
     261:     return (hp->hpt);
     262: }
     263:
     264: #include <sys/types.h>
     265: #include <sys/stat.h>
     266:
     267: fgetNUL(obuf, rmdr, file)
     268:     char *obuf;
     269:     register int rmdr;
     270:     FILE *file;
     271: {
     272:     register c;
     273:     register char *buf = obuf;
     274:
     275:     while (--rmdr > 0 && (c = getc(file)) != 0 && c != EOF)
     276:         *buf++ = c;
     277:     *buf++ = 0;
     278:     getc(file);
     279:     return ((feof(file) || ferror(file)) ? NULL : 1);
     280: }

#### Defined functions

copystr defined in line 131; used 1 times

- in line 108

fgetNUL defined in line 267; used 2 times

- in line 204, 240

hashit defined in line 218; used 2 times

- in line 188, 205

inithash defined in line 198; used 1 times

- in line 72

main defined in line 55; never used
match defined in line 113; used 1 times

- in line 102

octdigit defined in line 191; used 3 times

- in line 170-178(3)

process defined in line 89; used 1 times

- in line 83

#### Defined variables

bucket defined in line 216; used 3 times

- in line 237, 249, 256

copyright defined in line 8; never used
name defined in line 53; used 5 times

- in line 74-80(5)

np defined in line 53; used 2 times

- in line 75-78(2)

progname defined in line 51; used 2 times

- in line 61-65(2)

sccsid defined in line 14; never used
usagestr defined in line 52; used 1 times

- in line 65

#### Defined struct's

hash defined in line 212; used 6 times

- in line 215(2), 224(2), 248(2)

#### Defined macros

NBUCKETS defined in line 210; used 3 times

- in line 216, 233-235(2)

ungetchar defined in line 19; used 1 times

- in line 124

Last modified: 1989-04-06 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 708 |