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greg |
2.1 |
/* Copyright (c) 1992 Regents of the University of California */
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#ifndef lint
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static char SCCSid[] = "$SunId$ LBL";
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#endif
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/*
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* Load whitespace separated words from a file into an array.
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* Assume the passed pointer array is big enough to hold them all.
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*/
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greg |
2.2 |
#include <ctype.h>
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greg |
2.1 |
#define NULL 0
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greg |
2.3 |
#define MAXFLEN 8192 /* file must be smaller than this */
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greg |
2.1 |
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extern char *bmalloc();
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int
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wordfile(words, fname) /* get words from fname, put in words */
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char **words;
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char *fname;
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{
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int fd;
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greg |
2.3 |
char buf[MAXFLEN];
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greg |
2.1 |
register int n;
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greg |
2.3 |
/* load file into buffer */
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greg |
2.1 |
if ((fd = open(fname, 0)) < 0)
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greg |
2.3 |
return(-1); /* open error */
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greg |
2.2 |
n = read(fd, buf, MAXFLEN);
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greg |
2.1 |
close(fd);
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greg |
2.3 |
if (n < 0) /* read error */
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return(-1);
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greg |
2.2 |
if (n == MAXFLEN) /* file too big, take what we can */
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greg |
2.1 |
while (!isspace(buf[--n]))
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greg |
2.3 |
if (n <= 0) /* one long word! */
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return(-1);
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buf[n] = '\0'; /* terminate */
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return(wordstring(words, buf)); /* wordstring does the rest */
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}
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int
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wordstring(avl, str) /* allocate and load argument list */
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char **avl;
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char *str;
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{
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register char *cp, **ap;
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if (str == NULL)
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return(-1);
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cp = bmalloc(strlen(str)+1);
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if (cp == NULL) /* ENOMEM */
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return(-1);
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strcpy(cp, str);
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greg |
2.4 |
ap = avl; /* parse into words */
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for ( ; ; ) {
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while (isspace(*cp)) /* nullify spaces */
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*cp++ = '\0';
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if (!*cp) /* all done? */
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break;
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*ap++ = cp; /* add argument to list */
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greg |
2.5 |
while (*cp && !isspace(*cp))
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cp++;
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greg |
2.1 |
}
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greg |
2.3 |
*ap = NULL;
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return(ap - avl);
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greg |
2.1 |
}
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