1 /* 2 * Copyright (c) 1987, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #if 0 35 #ifndef lint 36 static char sccsid[] = "@(#)fortran.c 8.3 (Berkeley) 4/2/94"; 37 #endif 38 #endif 39 40 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 #include <ctype.h> 44 #include <limits.h> 45 #include <stdio.h> 46 #include <string.h> 47 48 #include "ctags.h" 49 50 static void takeprec(void); 51 52 char *lbp; /* line buffer pointer */ 53 54 int 55 PF_funcs() 56 { 57 bool pfcnt; /* pascal/fortran functions found */ 58 char *cp; 59 char tok[MAXTOKEN]; 60 61 for (pfcnt = NO;;) { 62 lineftell = ftell(inf); 63 if (!fgets(lbuf, sizeof(lbuf), inf)) 64 return (pfcnt); 65 ++lineno; 66 lbp = lbuf; 67 if (*lbp == '%') /* Ratfor escape to fortran */ 68 ++lbp; 69 for (; isspace(*lbp); ++lbp) 70 continue; 71 if (!*lbp) 72 continue; 73 switch (*lbp | ' ') { /* convert to lower-case */ 74 case 'c': 75 if (cicmp("complex") || cicmp("character")) 76 takeprec(); 77 break; 78 case 'd': 79 if (cicmp("double")) { 80 for (; isspace(*lbp); ++lbp) 81 continue; 82 if (!*lbp) 83 continue; 84 if (cicmp("precision")) 85 break; 86 continue; 87 } 88 break; 89 case 'i': 90 if (cicmp("integer")) 91 takeprec(); 92 break; 93 case 'l': 94 if (cicmp("logical")) 95 takeprec(); 96 break; 97 case 'r': 98 if (cicmp("real")) 99 takeprec(); 100 break; 101 } 102 for (; isspace(*lbp); ++lbp) 103 continue; 104 if (!*lbp) 105 continue; 106 switch (*lbp | ' ') { 107 case 'f': 108 if (cicmp("function")) 109 break; 110 continue; 111 case 'p': 112 if (cicmp("program") || cicmp("procedure")) 113 break; 114 continue; 115 case 's': 116 if (cicmp("subroutine")) 117 break; 118 default: 119 continue; 120 } 121 for (; isspace(*lbp); ++lbp) 122 continue; 123 if (!*lbp) 124 continue; 125 for (cp = lbp + 1; *cp && intoken(*cp); ++cp) 126 continue; 127 if (cp == lbp + 1) 128 continue; 129 *cp = EOS; 130 (void)strlcpy(tok, lbp, sizeof(tok)); /* possible trunc */ 131 getline(); /* process line for ex(1) */ 132 pfnote(tok, lineno); 133 pfcnt = YES; 134 } 135 /*NOTREACHED*/ 136 } 137 138 /* 139 * cicmp -- 140 * do case-independent strcmp 141 */ 142 int 143 cicmp(const char *cp) 144 { 145 int len; 146 char *bp; 147 148 for (len = 0, bp = lbp; *cp && (*cp &~ ' ') == (*bp++ &~ ' '); 149 ++cp, ++len) 150 continue; 151 if (!*cp) { 152 lbp += len; 153 return (YES); 154 } 155 return (NO); 156 } 157 158 static void 159 takeprec(void) 160 { 161 for (; isspace(*lbp); ++lbp) 162 continue; 163 if (*lbp == '*') { 164 for (++lbp; isspace(*lbp); ++lbp) 165 continue; 166 if (!isdigit(*lbp)) 167 --lbp; /* force failure */ 168 else 169 while (isdigit(*++lbp)) 170 continue; 171 } 172 } 173