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Annotation of src/usr.bin/asn1_compile/lex.l, Revision 1.1

1.1     ! hin         1: %{
        !             2: /*
        !             3:  * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
        !             4:  * (Royal Institute of Technology, Stockholm, Sweden).
        !             5:  * 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:  *
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  *
        !            14:  * 2. Redistributions in binary form must reproduce the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer in the
        !            16:  *    documentation and/or other materials provided with the distribution.
        !            17:  *
        !            18:  * 3. Neither the name of the Institute nor the names of its contributors
        !            19:  *    may be used to endorse or promote products derived from this software
        !            20:  *    without specific prior written permission.
        !            21:  *
        !            22:  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
        !            23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
        !            26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            32:  * SUCH DAMAGE.
        !            33:  */
        !            34:
        !            35: /* $KTH: lex.l,v 1.19 2001/09/25 23:28:03 assar Exp $ */
        !            36:
        !            37: #ifdef HAVE_CONFIG_H
        !            38: #include <config.h>
        !            39: #endif
        !            40: #include <stdio.h>
        !            41: #include <stdarg.h>
        !            42: #include <stdlib.h>
        !            43: #include <string.h>
        !            44: #ifdef HAVE_UNISTD_H
        !            45: #include <unistd.h>
        !            46: #endif
        !            47: #undef ECHO
        !            48: #include "symbol.h"
        !            49: #include "parse.h"
        !            50: #include "lex.h"
        !            51: #include "gen_locl.h"
        !            52:
        !            53: static unsigned lineno = 1;
        !            54:
        !            55: #define YY_NO_UNPUT
        !            56:
        !            57: #undef ECHO
        !            58:
        !            59: %}
        !            60:
        !            61:
        !            62: %%
        !            63: INTEGER                        { return INTEGER; }
        !            64: IMPORTS                        { return IMPORTS; }
        !            65: FROM                   { return FROM; }
        !            66: SEQUENCE               { return SEQUENCE; }
        !            67: OF                     { return OF; }
        !            68: OCTET                  { return OCTET; }
        !            69: STRING                 { return STRING; }
        !            70: GeneralizedTime                { return GeneralizedTime; }
        !            71: GeneralString          { return GeneralString; }
        !            72: BIT                    { return BIT; }
        !            73: APPLICATION            { return APPLICATION; }
        !            74: OPTIONAL               { return OPTIONAL; }
        !            75: BEGIN                  { return TBEGIN; }
        !            76: END                    { return END; }
        !            77: DEFINITIONS            { return DEFINITIONS; }
        !            78: ENUMERATED             { return ENUMERATED; }
        !            79: EXTERNAL               { return EXTERNAL; }
        !            80: OBJECT                 { return OBJECT; }
        !            81: IDENTIFIER             { return IDENTIFIER; }
        !            82: [,;{}()|]              { return *yytext; }
        !            83: "["                    { return *yytext; }
        !            84: "]"                    { return *yytext; }
        !            85: ::=                    { return EEQUAL; }
        !            86: --[^\n]*\n             { ++lineno; }
        !            87: -?(0x)?[0-9]+          { char *e, *y = yytext;
        !            88:                          yylval.constant = strtol((const char *)yytext,
        !            89:                                                   &e, 0);
        !            90:                          if(e == y)
        !            91:                            error_message("malformed constant (%s)", yytext);
        !            92:                          else
        !            93:                            return CONSTANT;
        !            94:                        }
        !            95: [A-Za-z][-A-Za-z0-9_]* {
        !            96:                          yylval.name =  strdup ((const char *)yytext);
        !            97:                          return IDENT;
        !            98:                        }
        !            99: [ \t]                  ;
        !           100: \n                     { ++lineno; }
        !           101: \.\.                   { return DOTDOT; }
        !           102: .                      { error_message("Ignoring char(%c)\n", *yytext); }
        !           103: %%
        !           104:
        !           105: #ifndef yywrap /* XXX */
        !           106: int
        !           107: yywrap ()
        !           108: {
        !           109:      return 1;
        !           110: }
        !           111: #endif
        !           112:
        !           113: void
        !           114: error_message (const char *format, ...)
        !           115: {
        !           116:      va_list args;
        !           117:
        !           118:      va_start (args, format);
        !           119:      fprintf (stderr, "%s:%d: ", filename(), lineno);
        !           120:      vfprintf (stderr, format, args);
        !           121:      va_end (args);
        !           122: }