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#include <ctype.h> |
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|
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|
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+ |
#define isquote(c) (((c) == '"') | ((c) == '\'')) |
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|
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|
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char * |
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fgetword( /* 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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> |
FILE *fp |
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) |
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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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> |
char *cp; |
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> |
int c; |
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/* sanity checks */ |
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< |
if ((s == NULL) | (n <= 0)) |
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> |
if ((s == NULL) | (n < 2)) |
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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 */ |
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< |
if ((c == '"') | (c == '\'')) { |
| 38 |
> |
if (isquote(c)) { |
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quote = c; |
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c = getc(fp); |
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} |
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< |
/* check for end of file */ |
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if (c == EOF) |
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< |
return(NULL); |
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< |
/* get actual word */ |
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cp = s; |
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< |
do { |
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if (--n <= 0) /* check length limit */ |
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< |
break; |
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< |
*cp++ = c; |
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< |
c = getc(fp); |
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< |
} while (c != EOF && !(quote ? c==quote : isspace(c))); |
| 42 |
> |
cp = s; /* get actual word */ |
| 43 |
> |
while (c != EOF) { |
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> |
if (c == quote) /* end quote? */ |
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> |
quote = '\0'; |
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> |
else if (!quote && isquote(c)) |
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quote = c; /* started new quote */ |
| 48 |
> |
else { |
| 49 |
> |
if (!quote && isspace(c)) |
| 50 |
> |
break; /* end of word */ |
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> |
if (--n <= 0) |
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> |
break; /* hit length limit */ |
| 53 |
> |
*cp++ = c; |
| 54 |
> |
} |
| 55 |
> |
c = getc(fp); /* get next character */ |
| 56 |
> |
} |
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*cp = '\0'; |
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< |
if ((c != EOF) & (!quote)) /* replace space */ |
| 59 |
< |
ungetc(c, fp); |
| 58 |
> |
if ((c == EOF) & (cp == s)) /* hit end-of-file? */ |
| 59 |
> |
return(NULL); |
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return(s); |
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} |
