1 |
greg |
1.1 |
#ifndef lint |
2 |
greg |
2.2 |
static const char RCSid[] = "$Id$"; |
3 |
greg |
1.1 |
#endif |
4 |
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/* |
5 |
|
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* Read white space separated words from stream |
6 |
greg |
2.2 |
* |
7 |
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* External symbols declared in standard.h |
8 |
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*/ |
9 |
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10 |
greg |
2.3 |
#include "copyright.h" |
11 |
greg |
1.1 |
|
12 |
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#include <stdio.h> |
13 |
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14 |
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#include <ctype.h> |
15 |
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16 |
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17 |
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char * |
18 |
greg |
2.2 |
fgetword(s, n, fp) /* get (quoted) word up to n-1 characters */ |
19 |
greg |
1.1 |
char *s; |
20 |
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int n; |
21 |
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register FILE *fp; |
22 |
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{ |
23 |
greg |
2.2 |
int quote = '\0'; |
24 |
greg |
1.1 |
register char *cp; |
25 |
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register int c; |
26 |
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/* skip initial white space */ |
27 |
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do |
28 |
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c = getc(fp); |
29 |
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while (isspace(c)); |
30 |
greg |
2.2 |
/* check for quote */ |
31 |
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if ((c == '"' | c == '\'')) { |
32 |
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quote = c; |
33 |
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c = getc(fp); |
34 |
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} |
35 |
greg |
1.1 |
/* check for end of file */ |
36 |
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if (c == EOF) |
37 |
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return(NULL); |
38 |
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/* get actual word */ |
39 |
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cp = s; |
40 |
|
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do { |
41 |
greg |
2.2 |
if (--n <= 0) /* check length limit */ |
42 |
greg |
1.1 |
break; |
43 |
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*cp++ = c; |
44 |
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c = getc(fp); |
45 |
greg |
2.2 |
} while (c != EOF && !(quote ? c==quote : isspace(c))); |
46 |
greg |
1.1 |
*cp = '\0'; |
47 |
greg |
2.2 |
if ((c != EOF & !quote)) /* replace space */ |
48 |
greg |
1.1 |
ungetc(c, fp); |
49 |
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return(s); |
50 |
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} |