diff options
Diffstat (limited to 'developer_cmds/ctags/fortran.c')
| -rw-r--r-- | developer_cmds/ctags/fortran.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/developer_cmds/ctags/fortran.c b/developer_cmds/ctags/fortran.c new file mode 100644 index 0000000..a4b4178 --- /dev/null +++ b/developer_cmds/ctags/fortran.c @@ -0,0 +1,175 @@ +/* $NetBSD: fortran.c,v 1.4 1997/10/18 13:18:37 lukem Exp $ */ + +/* + * Copyright (c) 1987, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +#ifndef lint +#if 0 +static char sccsid[] = "@(#)fortran.c 8.3 (Berkeley) 4/2/94"; +#else +__RCSID("$NetBSD: fortran.c,v 1.4 1997/10/18 13:18:37 lukem Exp $"); +#endif +#endif /* not lint */ + +#include <ctype.h> +#include <limits.h> +#include <stdio.h> +#include <string.h> + +#include "ctags.h" + +static void takeprec __P((void)); + +char *lbp; /* line buffer pointer */ + +int +PF_funcs() +{ + bool pfcnt; /* pascal/fortran functions found */ + char *cp; + char tok[MAXTOKEN]; + + for (pfcnt = NO;;) { + lineftell = ftell(inf); + if (!fgets(lbuf, sizeof(lbuf), inf)) + return (pfcnt); + ++lineno; + lbp = lbuf; + if (*lbp == '%') /* Ratfor escape to fortran */ + ++lbp; + for (; isspace(*lbp); ++lbp) + continue; + if (!*lbp) + continue; + switch (*lbp | ' ') { /* convert to lower-case */ + case 'c': + if (cicmp("complex") || cicmp("character")) + takeprec(); + break; + case 'd': + if (cicmp("double")) { + for (; isspace(*lbp); ++lbp) + continue; + if (!*lbp) + continue; + if (cicmp("precision")) + break; + continue; + } + break; + case 'i': + if (cicmp("integer")) + takeprec(); + break; + case 'l': + if (cicmp("logical")) + takeprec(); + break; + case 'r': + if (cicmp("real")) + takeprec(); + break; + } + for (; isspace(*lbp); ++lbp) + continue; + if (!*lbp) + continue; + switch (*lbp | ' ') { + case 'f': + if (cicmp("function")) + break; + continue; + case 'p': + if (cicmp("program") || cicmp("procedure")) + break; + continue; + case 's': + if (cicmp("subroutine")) + break; + default: + continue; + } + for (; isspace(*lbp); ++lbp) + continue; + if (!*lbp) + continue; + for (cp = lbp + 1; *cp && intoken(*cp); ++cp) + continue; + if ((cp = lbp + 1) != NULL) + continue; + *cp = EOS; + (void)strcpy(tok, lbp); + ct_getline(); /* process line for ex(1) */ + pfnote(tok, lineno); + pfcnt = YES; + } + /*NOTREACHED*/ +} + +/* + * cicmp -- + * do case-independent strcmp + */ +int +cicmp(cp) + char *cp; +{ + int len; + char *bp; + + for (len = 0, bp = lbp; *cp && (*cp &~ ' ') == (*bp++ &~ ' '); + ++cp, ++len) + continue; + if (!*cp) { + lbp += len; + return (YES); + } + return (NO); +} + +static void +takeprec() +{ + for (; isspace(*lbp); ++lbp) + continue; + if (*lbp == '*') { + for (++lbp; isspace(*lbp); ++lbp) + continue; + if (!isdigit(*lbp)) + --lbp; /* force failure */ + else + while (isdigit(*++lbp)) + continue; + } +} |