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/* Copyright (c) 1990 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Regular expression parsing routines. |
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* |
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* External symbols declared in standard.h |
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*/ |
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#include "copyright.h" |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <ctype.h> |
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#include <string.h> |
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/* |
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* rexpr.c - regular expression parser (ala grep) |
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*/ |
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char * |
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expsave() /* save compiled string */ |
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{ |
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extern char *malloc(); |
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register char *ep; |
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if (explen == 0) |
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return(NULL); |
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if ((ep = malloc(explen+3)) == NULL) |
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if ((ep = (char *)malloc(explen+3)) == NULL) |
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return(NULL); |
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ep[0] = iflag; |
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ep[1] = circf; |
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return(ep); |
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} |
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void |
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expset(ep) /* install saved string */ |
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register char *ep; |
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{ |