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#ifndef lint
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static const char RCSid[] = "$Id: fgetline.c,v 2.8 2014/07/09 22:46:51 greg Exp $";
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#endif
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/*
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* fgetline.c - read line with escaped newlines.
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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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char *
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fgetline( /* read in line with escapes, elide final newline */
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char *s,
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int n,
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FILE *fp
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)
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{
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char *cp = s;
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int c = EOF;
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while (--n > 0 && (c = getc(fp)) != EOF) {
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if (c == '\r' && (c = getc(fp)) != '\n') {
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ungetc(c, fp); /* must be Apple file */
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c = '\n';
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}
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if (c == '\n' && (cp == s || cp[-1] != '\\'))
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break;
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*cp++ = c;
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}
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if ((cp == s) & (c == EOF))
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return(NULL);
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*cp = '\0';
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return(s);
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}
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