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#ifndef lint |
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static const char RCSid[] = "$Id$"; |
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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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* External symbols declared in standard.h |
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*/ |
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/* ==================================================================== |
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* The Radiance Software License, Version 1.0 |
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* |
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* Copyright (c) 1990 - 2002 The Regents of the University of California, |
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* through Lawrence Berkeley National Laboratory. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, |
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* if any, must include the following acknowledgment: |
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* "This product includes Radiance software |
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* (http://radsite.lbl.gov/) |
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* developed by the Lawrence Berkeley National Laboratory |
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* (http://www.lbl.gov/)." |
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* Alternately, this acknowledgment may appear in the software itself, |
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* if and wherever such third-party acknowledgments normally appear. |
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* |
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* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
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* and "The Regents of the University of California" must |
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* not be used to endorse or promote products derived from this |
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* software without prior written permission. For written |
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* permission, please contact [email protected]. |
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* |
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* 5. Products derived from this software may not be called "Radiance", |
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* nor may "Radiance" appear in their name, without prior written |
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* permission of Lawrence Berkeley National Laboratory. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
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* information on Lawrence Berkeley National Laboratory, please see |
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* <http://www.lbl.gov/>. |
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*/ |
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#include "copyright.h" |
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#include <ctype.h> |
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#include <string.h> |
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#ifdef BSD |
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#define strchr index |
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#endif |
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#include "rtio.h" |
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char * |
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atos(rs, nb, s) /* get word from string, returning rs */ |
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char *rs; |
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register int nb; |
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register char *s; |
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atos(char *rs, int nb, char *s) /* get word from string, returning rs */ |
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{ |
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register char *cp = rs; |
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char *cp = rs; |
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while (isspace(*s)) |
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s++; |
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char * |
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nextword(cp, nb, s) /* get (quoted) word, returning new s */ |
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register char *cp; |
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register int nb; |
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register char *s; |
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nextword(char *cp, int nb, char *s) /* get (quoted) word, returning new s */ |
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{ |
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int quote = 0; |
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char * |
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sskip(s) /* skip word in string, leaving on space */ |
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register char *s; |
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sskip(char *s) /* skip word in string, leaving on space */ |
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{ |
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while (isspace(*s)) |
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s++; |
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char * |
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sskip2(s, n) /* skip word(s) in string, leaving on word */ |
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register char *s; |
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register int n; |
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sskip2(char *s, int n) /* skip word(s) in string, leaving on word */ |
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{ |
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while (isspace(*s)) |
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s++; |
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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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iskip(char *s) /* skip integer in string */ |
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{ |
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while (isspace(*s)) |
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s++; |
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if (*s == '-' || *s == '+') |
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if ((*s == '-') | (*s == '+')) |
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s++; |
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if (!isdigit(*s)) |
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return(NULL); |
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char * |
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fskip(s) /* skip float in string */ |
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register char *s; |
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fskip(char *s) /* skip float in string */ |
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{ |
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register char *cp; |
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char *cp; |
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while (isspace(*s)) |
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s++; |
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if (*s == '-' || *s == '+') |
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if ((*s == '-') | (*s == '+')) |
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s++; |
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cp = s; |
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while (isdigit(*cp)) |
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} |
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if (cp == s) |
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return(NULL); |
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if (*cp == 'e' || *cp == 'E') |
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return(iskip(cp+1)); |
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if ((*cp == 'e') | (*cp == 'E')) |
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return(isspace(*++cp) ? NULL : iskip(cp)); |
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return(cp); |
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} |
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int |
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isint(s) /* check integer format */ |
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char *s; |
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isint(char *s) /* check integer format */ |
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{ |
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register char *cp; |
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char *cp; |
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cp = iskip(s); |
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return(cp != NULL && *cp == '\0'); |
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int |
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isintd(s, ds) /* check integer format with delimiter set */ |
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char *s, *ds; |
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isintd(char *s, char *ds) /* check integer format with delimiter set */ |
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{ |
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register char *cp; |
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char *cp; |
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cp = iskip(s); |
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return(cp != NULL && strchr(ds, *cp) != NULL); |
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int |
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isflt(s) /* check float format */ |
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char *s; |
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isflt(char *s) /* check float format */ |
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{ |
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register char *cp; |
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char *cp; |
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cp = fskip(s); |
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return(cp != NULL && *cp == '\0'); |
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int |
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isfltd(s, ds) /* check integer format with delimiter set */ |
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char *s, *ds; |
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isfltd(char *s, char *ds) /* check integer format with delimiter set */ |
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{ |
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register char *cp; |
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char *cp; |
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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(char *s) /* check for legal identifier name */ |
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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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} |