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/* Copyright (c) 1994 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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* Routines for recognizing and moving about words in strings. |
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*/ |
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#include <string.h> |
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#include <ctype.h> |
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#ifdef BSD |
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#define strchr index |
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#endif |
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#define NULL 0 |
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extern char *strchr(); |
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char * |
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iskip(s) /* skip integer in string */ |
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register char *s; |
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cp = fskip(s); |
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return(cp != NULL && strchr(ds, *cp) != NULL); |
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} |
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int |
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isname(s) /* check for legal identifier name */ |
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register char *s; |
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{ |
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while (*s == '_') /* skip leading underscores */ |
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s++; |
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if (!isascii(*s) || !isalpha(*s)) /* start with a letter */ |
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return(0); |
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while (isascii(*++s) && isgraph(*s)) /* all visible characters */ |
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; |
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return(*s == '\0'); /* ending in nul */ |
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} |
