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Diffstat (limited to 'third_party/heimdal/lib/asn1/lex.l')
| -rw-r--r-- | third_party/heimdal/lib/asn1/lex.l | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/asn1/lex.l b/third_party/heimdal/lib/asn1/lex.l new file mode 100644 index 0000000..4554a94 --- /dev/null +++ b/third_party/heimdal/lib/asn1/lex.l @@ -0,0 +1,310 @@ +%{ +/* + * Copyright (c) 1997 - 2017 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * 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. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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. + */ + +/* $Id$ */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <stdio.h> +#include <stdarg.h> +#include <stdlib.h> +#include <stdint.h> +#include <string.h> +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#undef ECHO +#include "symbol.h" +#include "asn1parse.h" +#include "lex.h" +#include "gen_locl.h" + +static unsigned lineno = 1; + +#undef ECHO + +static void unterminated(const char *, unsigned); + +%} + +/* This is for broken old lexes (solaris 10 and hpux) */ +%e 2000 +%p 5000 +%a 5000 +%n 1000 +%o 10000 + +%% +ABSENT { return kw_ABSENT; } +ABSTRACT-SYNTAX { return kw_ABSTRACT_SYNTAX; } +ALL { return kw_ALL; } +APPLICATION { return kw_APPLICATION; } +AUTOMATIC { return kw_AUTOMATIC; } +BEGIN { return kw_BEGIN; } +BIT { return kw_BIT; } +BMPString { return kw_BMPString; } +BOOLEAN { return kw_BOOLEAN; } +BY { return kw_BY; } +CHARACTER { return kw_CHARACTER; } +CHOICE { return kw_CHOICE; } +CLASS { return kw_CLASS; } +COMPONENT { return kw_COMPONENT; } +COMPONENTS { return kw_COMPONENTS; } +CONSTRAINED { return kw_CONSTRAINED; } +CONTAINING { return kw_CONTAINING; } +DEFAULT { return kw_DEFAULT; } +DEFINITIONS { return kw_DEFINITIONS; } +EMBEDDED { return kw_EMBEDDED; } +ENCODED { return kw_ENCODED; } +END { return kw_END; } +ENUMERATED { return kw_ENUMERATED; } +EXCEPT { return kw_EXCEPT; } +EXPLICIT { return kw_EXPLICIT; } +EXPORTS { return kw_EXPORTS; } +EXTENSIBILITY { return kw_EXTENSIBILITY; } +EXTERNAL { return kw_EXTERNAL; } +FALSE { return kw_FALSE; } +FROM { return kw_FROM; } +GeneralString { return kw_GeneralString; } +GeneralizedTime { return kw_GeneralizedTime; } +GraphicString { return kw_GraphicString; } +IA5String { return kw_IA5String; } +IDENTIFIER { return kw_IDENTIFIER; } +IMPLICIT { return kw_IMPLICIT; } +IMPLIED { return kw_IMPLIED; } +IMPORTS { return kw_IMPORTS; } +INCLUDES { return kw_INCLUDES; } +INSTANCE { return kw_INSTANCE; } +INTEGER { return kw_INTEGER; } +INTERSECTION { return kw_INTERSECTION; } +ISO646String { return kw_ISO646String; } +MAX { return kw_MAX; } +MIN { return kw_MIN; } +MINUS-INFINITY { return kw_MINUS_INFINITY; } +NULL { return kw_NULL; } +NumericString { return kw_NumericString; } +OBJECT { return kw_OBJECT; } +OCTET { return kw_OCTET; } +OF { return kw_OF; } +OPTIONAL { return kw_OPTIONAL; } +ObjectDescriptor { return kw_ObjectDescriptor; } +PATTERN { return kw_PATTERN; } +PDV { return kw_PDV; } +PLUS-INFINITY { return kw_PLUS_INFINITY; } +PRESENT { return kw_PRESENT; } +PRIVATE { return kw_PRIVATE; } +PrintableString { return kw_PrintableString; } +REAL { return kw_REAL; } +RELATIVE_OID { return kw_RELATIVE_OID; } +SEQUENCE { return kw_SEQUENCE; } +SET { return kw_SET; } +SIZE { return kw_SIZE; } +STRING { return kw_STRING; } +SYNTAX { return kw_SYNTAX; } +T61String { return kw_T61String; } +TAGS { return kw_TAGS; } +TRUE { return kw_TRUE; } +TYPE-IDENTIFIER { return kw_TYPE_IDENTIFIER; } +TeletexString { return kw_TeletexString; } +UNION { return kw_UNION; } +UNIQUE { return kw_UNIQUE; } +UNIVERSAL { return kw_UNIVERSAL; } +UTCTime { return kw_UTCTime; } +UTF8String { return kw_UTF8String; } +UniversalString { return kw_UniversalString; } +VideotexString { return kw_VideotexString; } +VisibleString { return kw_VisibleString; } +WITH { return kw_WITH; } +[-,;{}()|] { return *yytext; } +"[" { return *yytext; } +"]" { return *yytext; } +"&" { return *yytext; } +"." { return *yytext; } +":" { return *yytext; } +"@" { return *yytext; } +::= { return EEQUAL; } +-- { + int c, start_lineno = lineno; + int f = 0; + while((c = input()) != EOF) { + if(f && c == '-') + break; + if(c == '-') { + f = 1; + continue; + } + if(c == '\n') { + lineno++; + break; + } + f = 0; + } + if(c == EOF) + unterminated("comment", start_lineno); + } +\/\* { + int c, start_lineno = lineno; + int level = 1; + int seen_star = 0; + int seen_slash = 0; + while((c = input()) != EOF) { + if(c == '/') { + if(seen_star) { + if(--level == 0) + break; + seen_star = 0; + continue; + } + seen_slash = 1; + continue; + } + if(seen_star && c == '/') { + if(--level == 0) + break; + seen_star = 0; + continue; + } + if(c == '*') { + if(seen_slash) { + level++; + seen_star = seen_slash = 0; + continue; + } + seen_star = 1; + continue; + } + seen_star = seen_slash = 0; + if(c == '\n') { + lineno++; + continue; + } + } + if(c == EOF) + unterminated("comment", start_lineno); + } +"\"" { + int start_lineno = lineno; + int c; + char buf[1024]; + char *p = buf; + int f = 0; + int skip_ws = 0; + + while((c = input()) != EOF) { + if(isspace(c) && skip_ws) { + if(c == '\n') + lineno++; + continue; + } + skip_ws = 0; + + if(c == '"') { + if(f) { + *p++ = '"'; + f = 0; + } else + f = 1; + continue; + } + if(f == 1) { + unput(c); + break; + } + if(c == '\n') { + lineno++; + while(p > buf && isspace((unsigned char)p[-1])) + p--; + skip_ws = 1; + continue; + } + *p++ = c; + } + if(c == EOF) + unterminated("string", start_lineno); + *p++ = '\0'; + yylval.name = estrdup(buf); + return STRING; + } + +-?0x[0-9A-Fa-f]+|-?[0-9]+ { char *e, *y = yytext; + yylval.constant = strtoll((const char *)yytext, + &e, 0); + if(e == y) + lex_error_message("malformed constant (%s)", yytext); + else + return NUMBER; + } +[_][-A-Z0-9]* { + yylval.name = estrdup ((const char *)yytext); + return CLASS_IDENTIFIER; + } +[A-Z][-A-Za-z0-9_]* { + yylval.name = estrdup ((const char *)yytext); + return TYPE_IDENTIFIER; + } +[a-z][-A-Za-z0-9_]* { + yylval.name = estrdup ((const char *)yytext); + return VALUE_IDENTIFIER; + } +[ \t] ; +\n { ++lineno; } +\.\.\. { return ELLIPSIS; } +\.\. { return RANGE; } +. { lex_error_message("Ignoring char(%c)\n", *yytext); } +%% + +int +yywrap () +{ + return 1; +} + +void +lex_error_message (const char *format, ...) +{ + va_list args; + + va_start (args, format); + fprintf (stderr, "%s:%d: ", get_filename(), lineno); + vfprintf (stderr, format, args); + va_end (args); + error_flag++; +} + +static void +unterminated(const char *type, unsigned start_lineno) +{ + lex_error_message("unterminated %s, possibly started on line %d\n", type, start_lineno); +} |