1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1987, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #if 0 33 #ifndef lint 34 static char sccsid[] = "@(#)fortran.c 8.3 (Berkeley) 4/2/94"; 35 #endif 36 #endif 37 38 #include <sys/cdefs.h> 39 __FBSDID("$FreeBSD$"); 40 41 #include <ctype.h> 42 #include <limits.h> 43 #include <stdio.h> 44 #include <string.h> 45 46 #include "ctags.h" 47 48 static void takeprec(void); 49 50 char *lbp; /* line buffer pointer */ 51 52 int 53 PF_funcs(void) 54 { 55 bool pfcnt; /* pascal/fortran functions found */ 56 char *cp; 57 char tok[MAXTOKEN]; 58 59 for (pfcnt = NO;;) { 60 lineftell = ftell(inf); 61 if (!fgets(lbuf, sizeof(lbuf), inf)) 62 return (pfcnt); 63 ++lineno; 64 lbp = lbuf; 65 if (*lbp == '%') /* Ratfor escape to fortran */ 66 ++lbp; 67 for (; isspace(*lbp); ++lbp) 68 continue; 69 if (!*lbp) 70 continue; 71 switch (*lbp | ' ') { /* convert to lower-case */ 72 case 'c': 73 if (cicmp("complex") || cicmp("character")) 74 takeprec(); 75 break; 76 case 'd': 77 if (cicmp("double")) { 78 for (; isspace(*lbp); ++lbp) 79 continue; 80 if (!*lbp) 81 continue; 82 if (cicmp("precision")) 83 break; 84 continue; 85 } 86 break; 87 case 'i': 88 if (cicmp("integer")) 89 takeprec(); 90 break; 91 case 'l': 92 if (cicmp("logical")) 93 takeprec(); 94 break; 95 case 'r': 96 if (cicmp("real")) 97 takeprec(); 98 break; 99 } 100 for (; isspace(*lbp); ++lbp) 101 continue; 102 if (!*lbp) 103 continue; 104 switch (*lbp | ' ') { 105 case 'f': 106 if (cicmp("function")) 107 break; 108 continue; 109 case 'p': 110 if (cicmp("program") || cicmp("procedure")) 111 break; 112 continue; 113 case 's': 114 if (cicmp("subroutine")) 115 break; 116 default: 117 continue; 118 } 119 for (; isspace(*lbp); ++lbp) 120 continue; 121 if (!*lbp) 122 continue; 123 for (cp = lbp + 1; *cp && intoken(*cp); ++cp) 124 continue; 125 if (cp == lbp + 1) 126 continue; 127 *cp = EOS; 128 (void)strlcpy(tok, lbp, sizeof(tok)); /* possible trunc */ 129 get_line(); /* process line for ex(1) */ 130 pfnote(tok, lineno); 131 pfcnt = YES; 132 } 133 /*NOTREACHED*/ 134 } 135 136 /* 137 * cicmp -- 138 * do case-independent strcmp 139 */ 140 int 141 cicmp(const char *cp) 142 { 143 int len; 144 char *bp; 145 146 for (len = 0, bp = lbp; *cp && (*cp &~ ' ') == (*bp++ &~ ' '); 147 ++cp, ++len) 148 continue; 149 if (!*cp) { 150 lbp += len; 151 return (YES); 152 } 153 return (NO); 154 } 155 156 static void 157 takeprec(void) 158 { 159 for (; isspace(*lbp); ++lbp) 160 continue; 161 if (*lbp == '*') { 162 for (++lbp; isspace(*lbp); ++lbp) 163 continue; 164 if (!isdigit(*lbp)) 165 --lbp; /* force failure */ 166 else 167 while (isdigit(*++lbp)) 168 continue; 169 } 170 } 171