| 1 |
greg |
2.1 |
#ifndef lint |
| 2 |
greg |
2.8 |
static const char RCSid[] = "$Id$"; |
| 3 |
greg |
2.1 |
#endif |
| 4 |
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/* |
| 5 |
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* Load whitespace separated words from a file into an array. |
| 6 |
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* Assume the passed pointer array is big enough to hold them all. |
| 7 |
greg |
2.8 |
* |
| 8 |
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* External symbols declared in standard.h |
| 9 |
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*/ |
| 10 |
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| 11 |
greg |
2.9 |
#include "copyright.h" |
| 12 |
greg |
2.1 |
|
| 13 |
greg |
2.2 |
#include <ctype.h> |
| 14 |
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| 15 |
greg |
2.1 |
#define NULL 0 |
| 16 |
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| 17 |
greg |
2.3 |
#define MAXFLEN 8192 /* file must be smaller than this */ |
| 18 |
greg |
2.1 |
|
| 19 |
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extern char *bmalloc(); |
| 20 |
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| 21 |
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| 22 |
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int |
| 23 |
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wordfile(words, fname) /* get words from fname, put in words */ |
| 24 |
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char **words; |
| 25 |
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char *fname; |
| 26 |
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{ |
| 27 |
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int fd; |
| 28 |
greg |
2.3 |
char buf[MAXFLEN]; |
| 29 |
greg |
2.1 |
register int n; |
| 30 |
greg |
2.3 |
/* load file into buffer */ |
| 31 |
greg |
2.7 |
if (fname == NULL) |
| 32 |
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return(-1); /* no filename */ |
| 33 |
greg |
2.1 |
if ((fd = open(fname, 0)) < 0) |
| 34 |
greg |
2.3 |
return(-1); /* open error */ |
| 35 |
greg |
2.2 |
n = read(fd, buf, MAXFLEN); |
| 36 |
greg |
2.1 |
close(fd); |
| 37 |
greg |
2.3 |
if (n < 0) /* read error */ |
| 38 |
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return(-1); |
| 39 |
greg |
2.2 |
if (n == MAXFLEN) /* file too big, take what we can */ |
| 40 |
greg |
2.1 |
while (!isspace(buf[--n])) |
| 41 |
greg |
2.3 |
if (n <= 0) /* one long word! */ |
| 42 |
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return(-1); |
| 43 |
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buf[n] = '\0'; /* terminate */ |
| 44 |
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return(wordstring(words, buf)); /* wordstring does the rest */ |
| 45 |
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} |
| 46 |
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| 47 |
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| 48 |
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int |
| 49 |
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wordstring(avl, str) /* allocate and load argument list */ |
| 50 |
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char **avl; |
| 51 |
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char *str; |
| 52 |
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{ |
| 53 |
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register char *cp, **ap; |
| 54 |
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| 55 |
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if (str == NULL) |
| 56 |
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return(-1); |
| 57 |
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cp = bmalloc(strlen(str)+1); |
| 58 |
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if (cp == NULL) /* ENOMEM */ |
| 59 |
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return(-1); |
| 60 |
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strcpy(cp, str); |
| 61 |
greg |
2.4 |
ap = avl; /* parse into words */ |
| 62 |
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for ( ; ; ) { |
| 63 |
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while (isspace(*cp)) /* nullify spaces */ |
| 64 |
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*cp++ = '\0'; |
| 65 |
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if (!*cp) /* all done? */ |
| 66 |
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break; |
| 67 |
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*ap++ = cp; /* add argument to list */ |
| 68 |
greg |
2.6 |
while (*++cp && !isspace(*cp)) |
| 69 |
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; |
| 70 |
greg |
2.1 |
} |
| 71 |
greg |
2.3 |
*ap = NULL; |
| 72 |
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return(ap - avl); |
| 73 |
greg |
2.1 |
} |
