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/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1980 Regents of the University of California.\n\
All rights reserved.\n";
#endif not lint
#ifndef lint
static char sccsid[] = "@(#)mkstr.c 5.1 (Berkeley) 5/31/85";
#endif not lint
#include <stdio.h>
#include <string.h>
#define ungetchar(c) ungetc(c, stdin)
long ftell();
char *calloc();
/*
* mkstr - create a string error message file by massaging C source
*
* Bill Joy UCB August 1977
*
* Modified March 1978 to hash old messages to be able to recompile
* without addding messages to the message file (usually)
*
* Based on an earlier program conceived by Bill Joy and Chuck Haley
*
* Program to create a string error message file
* from a group of C programs. Arguments are the name
* of the file where the strings are to be placed, the
* prefix of the new files where the processed source text
* is to be placed, and the files to be processed.
*
* The program looks for 'error("' in the source stream.
* Whenever it finds this, the following characters from the '"'
* to a '"' are replaced by 'seekpt' where seekpt is a
* pointer into the error message file.
* If the '(' is not immediately followed by a '"' no change occurs.
*
* The optional '-' causes strings to be added at the end of the
* existing error message file for recompilation of single routines.
*/
FILE *mesgread, *mesgwrite;
char *progname;
char usagestr[] = "usage: %s [ - ] mesgfile prefix file ...\n";
char name[100], *np;
main(argc, argv)
int argc;
char *argv[];
{
char addon = 0;
argc--, progname = *argv++;
if (argc > 1 && argv[0][0] == '-')
addon++, argc--, argv++;
if (argc < 3)
fprintf(stderr, usagestr, progname), exit(1);
mesgwrite = fopen(argv[0], addon ? "a" : "w");
if (mesgwrite == NULL)
perror(argv[0]), exit(1);
mesgread = fopen(argv[0], "r");
if (mesgread == NULL)
perror(argv[0]), exit(1);
inithash();
argc--, argv++;
strcpy(name, argv[0]);
np = name + strlen(name);
argc--, argv++;
do {
strcpy(np, argv[0]);
if (freopen(name, "w", stdout) == NULL)
perror(name), exit(1);
if (freopen(argv[0], "r", stdin) == NULL)
perror(argv[0]), exit(1);
process();
argc--, argv++;
} while (argc > 0);
exit(0);
}
process()
{
register char *cp;
register c;
for (;;) {
c = getchar();
if (c == EOF)
return;
if (c != 'e') {
putchar(c);
continue;
}
if (match("error(")) {
printf("error(");
c = getchar();
if (c != '"')
putchar(c);
else
copystr();
}
}
}
match(ocp)
char *ocp;
{
register char *cp;
register c;
for (cp = ocp + 1; *cp; cp++) {
c = getchar();
if (c != *cp) {
while (ocp < cp)
putchar(*ocp++);
ungetchar(c);
return (0);
}
}
return (1);
}
copystr()
{
register c, ch;
char buf[512];
register char *cp = buf;
for (;;) {
c = getchar();
if (c == EOF)
break;
switch (c) {
case '"':
*cp++ = 0;
goto out;
case '\\':
c = getchar();
switch (c) {
case 'b':
c = '\b';
break;
case 't':
c = '\t';
break;
case 'r':
c = '\r';
break;
case 'n':
c = '\n';
break;
case '\n':
continue;
case 'f':
c = '\f';
break;
case '\\':
break;
default:
if (!octdigit(c))
break;
c -= '0';
ch = getchar();
if (!octdigit(ch))
break;
c <<= 3, c += ch - '0';
ch = getchar();
if (!octdigit(ch))
break;
c <<= 3, c += ch - '0';
break;
}
}
*cp++ = c;
}
out:
*cp = 0;
printf("%d", hashit(buf, 1, NULL));
}
octdigit(c)
char c;
{
return (c >= '0' && c <= '7');
}
inithash()
{
char buf[512];
int mesgpt = 0;
rewind(mesgread);
while (fgetNUL(buf, sizeof buf, mesgread) != NULL) {
hashit(buf, 0, mesgpt);
mesgpt += strlen(buf) + 2;
}
}
#define NBUCKETS 511
struct hash {
long hval;
unsigned hpt;
struct hash *hnext;
} *bucket[NBUCKETS];
hashit(str, really, fakept)
char *str;
char really;
unsigned fakept;
{
int i;
register struct hash *hp;
char buf[512];
long hashval = 0;
register char *cp;
if (really)
fflush(mesgwrite);
for (cp = str; *cp;)
hashval = (hashval << 1) + *cp++;
i = hashval % NBUCKETS;
if (i < 0)
i += NBUCKETS;
if (really != 0)
for (hp = bucket[i]; hp != 0; hp = hp->hnext)
if (hp->hval == hashval) {
fseek(mesgread, (long) hp->hpt, 0);
fgetNUL(buf, sizeof buf, mesgread);
/*
fprintf(stderr, "Got (from %d) %s\n", hp->hpt, buf);
*/
if (strcmp(buf, str) == 0)
break;
}
if (!really || hp == 0) {
hp = (struct hash *) calloc(1, sizeof *hp);
hp->hnext = bucket[i];
hp->hval = hashval;
hp->hpt = really ? ftell(mesgwrite) : fakept;
if (really) {
fwrite(str, sizeof (char), strlen(str) + 1, mesgwrite);
fwrite("\n", sizeof (char), 1, mesgwrite);
}
bucket[i] = hp;
}
/*
fprintf(stderr, "%s hashed to %ld at %d\n", str, hp->hval, hp->hpt);
*/
return (hp->hpt);
}
#include <sys/types.h>
#include <sys/stat.h>
fgetNUL(obuf, rmdr, file)
char *obuf;
register int rmdr;
FILE *file;
{
register c;
register char *buf = obuf;
while (--rmdr > 0 && (c = getc(file)) != 0 && c != EOF)
*buf++ = c;
*buf++ = 0;
getc(file);
return ((feof(file) || ferror(file)) ? NULL : 1);
}