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/* |
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* Read white space separated words from stream |
6 |
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* |
7 |
< |
* External symbols declared in standard.h |
7 |
> |
* External symbols declared in rtio.h |
8 |
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*/ |
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|
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#include "copyright.h" |
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|
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< |
#include <stdio.h> |
12 |
> |
#include "rtio.h" |
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|
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#include <ctype.h> |
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|
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|
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char * |
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< |
fgetword(s, n, fp) /* get (quoted) word up to n-1 characters */ |
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< |
char *s; |
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< |
int n; |
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< |
register FILE *fp; |
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> |
fgetword( /* get (quoted) word up to n-1 characters */ |
19 |
> |
char *s, |
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> |
int n, |
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> |
register FILE *fp |
22 |
> |
) |
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{ |
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int quote = '\0'; |
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register char *cp; |
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register int c; |
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+ |
/* sanity checks */ |
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+ |
if ((s == NULL) | (n <= 0)) |
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+ |
return(NULL); |
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/* skip initial white space */ |
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do |
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c = getc(fp); |
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while (isspace(c)); |
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/* check for quote */ |
35 |
< |
if ((c == '"' | c == '\'')) { |
35 |
> |
if ((c == '"') | (c == '\'')) { |
36 |
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quote = c; |
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c = getc(fp); |
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} |
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c = getc(fp); |
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} while (c != EOF && !(quote ? c==quote : isspace(c))); |
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*cp = '\0'; |
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< |
if ((c != EOF & !quote)) /* replace space */ |
51 |
> |
if ((c != EOF) & (!quote)) /* replace space */ |
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ungetc(c, fp); |
53 |
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return(s); |
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} |