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/* $OpenBSD: fortran.c,v 1.9 2013/11/26 13:18:55 deraadt Exp $ */ |
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/* $NetBSD: fortran.c,v 1.3 1995/03/26 20:14:08 glass Exp $ */ |
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/* |
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* Copyright (c) 1987, 1993, 1994 |
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* The Regents of the University of California. 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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* 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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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT 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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#include <ctype.h> |
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#include <limits.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include "ctags.h" |
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static void takeprec(void); |
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char *lbp; /* line buffer pointer */ |
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int |
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PF_funcs(void) |
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{ |
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bool pfcnt; /* pascal/fortran functions found */ |
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char *cp; |
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char tok[MAXTOKEN]; |
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for (pfcnt = NO;;) { |
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lineftell = ftell(inf); |
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if (!fgets(lbuf, sizeof(lbuf), inf)) |
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return (pfcnt); |
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++lineno; |
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lbp = lbuf; |
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if (*lbp == '%') /* Ratfor escape to fortran */ |
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++lbp; |
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for (; isspace((unsigned char)*lbp); ++lbp) |
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continue; |
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if (!*lbp) |
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continue; |
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switch (*lbp | ' ') { /* convert to lower-case */ |
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case 'c': |
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if (cicmp("complex") || cicmp("character")) |
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takeprec(); |
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break; |
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case 'd': |
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if (cicmp("double")) { |
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for (; isspace((unsigned char)*lbp); ++lbp) |
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continue; |
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if (!*lbp) |
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continue; |
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if (cicmp("precision")) |
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break; |
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continue; |
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} |
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break; |
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case 'i': |
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if (cicmp("integer")) |
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takeprec(); |
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break; |
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case 'l': |
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if (cicmp("logical")) |
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takeprec(); |
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break; |
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case 'r': |
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if (cicmp("real")) |
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takeprec(); |
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break; |
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} |
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for (; isspace((unsigned char)*lbp); ++lbp) |
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continue; |
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if (!*lbp) |
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continue; |
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switch (*lbp | ' ') { |
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case 'f': |
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if (cicmp("function")) |
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break; |
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continue; |
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case 'p': |
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if (cicmp("program") || cicmp("procedure")) |
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break; |
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continue; |
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case 's': |
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if (cicmp("subroutine")) |
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break; |
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default: |
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continue; |
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} |
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for (; isspace((unsigned char)*lbp); ++lbp) |
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continue; |
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if (!*lbp) |
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continue; |
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for (cp = lbp + 1; *cp && intoken(*cp); ++cp) |
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continue; |
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if ((cp = lbp + 1)) |
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continue; |
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*cp = EOS; |
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(void)strlcpy(tok, lbp, sizeof tok); /* possible trunc */ |
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get_line(); /* process line for ex(1) */ |
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pfnote(tok, lineno); |
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pfcnt = YES; |
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} |
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/*NOTREACHED*/ |
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} |
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/* |
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* cicmp -- |
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* do case-independent strcmp |
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*/ |
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int |
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cicmp(char *cp) |
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{ |
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int len; |
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char *bp; |
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for (len = 0, bp = lbp; *cp && (*cp &~ ' ') == (*bp++ &~ ' '); |
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++cp, ++len) |
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continue; |
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if (!*cp) { |
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lbp += len; |
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return (YES); |
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} |
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return (NO); |
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} |
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static void |
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takeprec(void) |
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{ |
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for (; isspace((unsigned char)*lbp); ++lbp) |
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continue; |
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if (*lbp == '*') { |
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for (++lbp; isspace((unsigned char)*lbp); ++lbp) |
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continue; |
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if (!isdigit((unsigned char)*lbp)) |
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--lbp; /* force failure */ |
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else |
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while (isdigit((unsigned char)*++lbp)) |
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continue; |
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} |
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} |