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#ifndef lint
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static const char RCSid[] = "$Id: fgetword.c,v 2.4 2003/06/27 06:53:21 greg Exp $";
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#endif
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/*
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* Read white space separated words from stream
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*
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* External symbols declared in rtio.h
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*/
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#include "copyright.h"
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#include "rtio.h"
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#include <ctype.h>
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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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{
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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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/* 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 == '\'')) {
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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)));
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*cp = '\0';
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if ((c != EOF) & (!quote)) /* replace space */
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ungetc(c, fp);
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return(s);
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}
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