![[BACK]](/icons/back.gif){kind=icon}
Return to yacc.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / ctags|
Return to yacc.c CVS log | Up to [local] / src / usr.bin / ctags |
1.1 ! deraadt 1: /* $NetBSD: yacc.c,v 1.3 1995/03/26 20:14:12 glass Exp $ */
! 2:
! 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. All advertising materials mentioning features or use of this software
! 16: * must display the following acknowledgement:
! 17: * This product includes software developed by the University of
! 18: * California, Berkeley and its contributors.
! 19: * 4. Neither the name of the University nor the names of its contributors
! 20: * may be used to endorse or promote products derived from this software
! 21: * without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 33: * SUCH DAMAGE.
! 34: */
! 35:
! 36: #ifndef lint
! 37: #if 0
! 38: static char sccsid[] = "@(#)yacc.c 8.3 (Berkeley) 4/2/94";
! 39: #else
! 40: static char rcsid[] = "$NetBSD: yacc.c,v 1.3 1995/03/26 20:14:12 glass Exp $";
! 41: #endif
! 42: #endif /* not lint */
! 43:
! 44: #include <ctype.h>
! 45: #include <limits.h>
! 46: #include <stdio.h>
! 47: #include <string.h>
! 48:
! 49: #include "ctags.h"
! 50:
! 51: /*
! 52: * y_entries:
! 53: * find the yacc tags and put them in.
! 54: */
! 55: void
! 56: y_entries()
! 57: {
! 58: int c;
! 59: char *sp;
! 60: bool in_rule;
! 61: char tok[MAXTOKEN];
! 62:
! 63: in_rule = NO;
! 64:
! 65: while (GETC(!=, EOF))
! 66: switch (c) {
! 67: case '\n':
! 68: SETLINE;
! 69: /* FALLTHROUGH */
! 70: case ' ':
! 71: case '\f':
! 72: case '\r':
! 73: case '\t':
! 74: break;
! 75: case '{':
! 76: if (skip_key('}'))
! 77: in_rule = NO;
! 78: break;
! 79: case '\'':
! 80: case '"':
! 81: if (skip_key(c))
! 82: in_rule = NO;
! 83: break;
! 84: case '%':
! 85: if (GETC(==, '%'))
! 86: return;
! 87: (void)ungetc(c, inf);
! 88: break;
! 89: case '/':
! 90: if (GETC(==, '*'))
! 91: skip_comment();
! 92: else
! 93: (void)ungetc(c, inf);
! 94: break;
! 95: case '|':
! 96: case ';':
! 97: in_rule = NO;
! 98: break;
! 99: default:
! 100: if (in_rule || !isalpha(c) && c != '.' && c != '_')
! 101: break;
! 102: sp = tok;
! 103: *sp++ = c;
! 104: while (GETC(!=, EOF) && (intoken(c) || c == '.'))
! 105: *sp++ = c;
! 106: *sp = EOS;
! 107: getline(); /* may change before ':' */
! 108: while (iswhite(c)) {
! 109: if (c == '\n')
! 110: SETLINE;
! 111: if (GETC(==, EOF))
! 112: return;
! 113: }
! 114: if (c == ':') {
! 115: pfnote(tok, lineno);
! 116: in_rule = YES;
! 117: }
! 118: else
! 119: (void)ungetc(c, inf);
! 120: }
! 121: }
! 122:
! 123: /*
! 124: * toss_yysec --
! 125: * throw away lines up to the next "\n%%\n"
! 126: */
! 127: void
! 128: toss_yysec()
! 129: {
! 130: int c; /* read character */
! 131: int state;
! 132:
! 133: /*
! 134: * state == 0 : waiting
! 135: * state == 1 : received a newline
! 136: * state == 2 : received first %
! 137: * state == 3 : recieved second %
! 138: */
! 139: lineftell = ftell(inf);
! 140: for (state = 0; GETC(!=, EOF);)
! 141: switch (c) {
! 142: case '\n':
! 143: ++lineno;
! 144: lineftell = ftell(inf);
! 145: if (state == 3) /* done! */
! 146: return;
! 147: state = 1; /* start over */
! 148: break;
! 149: case '%':
! 150: if (state) /* if 1 or 2 */
! 151: ++state; /* goto 3 */
! 152: break;
! 153: default:
! 154: state = 0; /* reset */
! 155: break;
! 156: }
! 157: }