blob: b764d16992608d483d3e583f328d9c917a8c7cdc [file] [log] [blame]
Doug Zongker37bee622009-06-08 17:35:39 -07001%{
2/*
3 * Copyright (C) 2009 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
Doug Zongker583fc122010-02-19 16:07:57 -080018#include <string.h>
Yabin Cui12f499e2016-01-27 12:26:18 -080019#include <string>
Doug Zongker583fc122010-02-19 16:07:57 -080020
Doug Zongker37bee622009-06-08 17:35:39 -070021#include "expr.h"
Doug Zongkerd9c9d102009-06-12 12:24:39 -070022#include "yydefs.h"
Doug Zongker37bee622009-06-08 17:35:39 -070023#include "parser.h"
24
25int gLine = 1;
26int gColumn = 1;
Doug Zongkerd9c9d102009-06-12 12:24:39 -070027int gPos = 0;
Doug Zongker37bee622009-06-08 17:35:39 -070028
Yabin Cui12f499e2016-01-27 12:26:18 -080029std::string string_buffer;
Doug Zongkerd9c9d102009-06-12 12:24:39 -070030
31#define ADVANCE do {yylloc.start=gPos; yylloc.end=gPos+yyleng; \
32 gColumn+=yyleng; gPos+=yyleng;} while(0)
33
Doug Zongker37bee622009-06-08 17:35:39 -070034%}
35
36%x STR
37
38%option noyywrap
39
40%%
41
42
43\" {
Doug Zongker37bee622009-06-08 17:35:39 -070044 BEGIN(STR);
Yabin Cui12f499e2016-01-27 12:26:18 -080045 string_buffer.clear();
Doug Zongkerd9c9d102009-06-12 12:24:39 -070046 yylloc.start = gPos;
47 ++gColumn;
48 ++gPos;
Doug Zongker37bee622009-06-08 17:35:39 -070049}
50
51<STR>{
52 \" {
53 ++gColumn;
Doug Zongkerd9c9d102009-06-12 12:24:39 -070054 ++gPos;
Doug Zongker37bee622009-06-08 17:35:39 -070055 BEGIN(INITIAL);
Yabin Cui12f499e2016-01-27 12:26:18 -080056 yylval.str = strdup(string_buffer.c_str());
Doug Zongkerd9c9d102009-06-12 12:24:39 -070057 yylloc.end = gPos;
Doug Zongker37bee622009-06-08 17:35:39 -070058 return STRING;
59 }
60
Yabin Cui12f499e2016-01-27 12:26:18 -080061 \\n { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\n'); }
62 \\t { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\t'); }
63 \\\" { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\"'); }
64 \\\\ { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\\'); }
Doug Zongker37bee622009-06-08 17:35:39 -070065
66 \\x[0-9a-fA-F]{2} {
67 gColumn += yyleng;
Doug Zongkerd9c9d102009-06-12 12:24:39 -070068 gPos += yyleng;
Doug Zongker37bee622009-06-08 17:35:39 -070069 int val;
70 sscanf(yytext+2, "%x", &val);
Yabin Cui12f499e2016-01-27 12:26:18 -080071 string_buffer.push_back(static_cast<char>(val));
Doug Zongker37bee622009-06-08 17:35:39 -070072 }
73
74 \n {
75 ++gLine;
Doug Zongkerd9c9d102009-06-12 12:24:39 -070076 ++gPos;
Doug Zongker37bee622009-06-08 17:35:39 -070077 gColumn = 1;
Yabin Cui12f499e2016-01-27 12:26:18 -080078 string_buffer.push_back(yytext[0]);
Doug Zongker37bee622009-06-08 17:35:39 -070079 }
80
81 . {
82 ++gColumn;
Doug Zongkerd9c9d102009-06-12 12:24:39 -070083 ++gPos;
Yabin Cui12f499e2016-01-27 12:26:18 -080084 string_buffer.push_back(yytext[0]);
Doug Zongker37bee622009-06-08 17:35:39 -070085 }
86}
87
Doug Zongkerd9c9d102009-06-12 12:24:39 -070088if ADVANCE; return IF;
89then ADVANCE; return THEN;
90else ADVANCE; return ELSE;
91endif ADVANCE; return ENDIF;
Doug Zongker37bee622009-06-08 17:35:39 -070092
Doug Zongker9931f7f2009-06-10 14:11:53 -070093[a-zA-Z0-9_:/.]+ {
Doug Zongkerd9c9d102009-06-12 12:24:39 -070094 ADVANCE;
Doug Zongker37bee622009-06-08 17:35:39 -070095 yylval.str = strdup(yytext);
96 return STRING;
97}
98
Doug Zongkerd9c9d102009-06-12 12:24:39 -070099\&\& ADVANCE; return AND;
100\|\| ADVANCE; return OR;
101== ADVANCE; return EQ;
102!= ADVANCE; return NE;
Doug Zongker37bee622009-06-08 17:35:39 -0700103
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700104[+(),!;] ADVANCE; return yytext[0];
Doug Zongker37bee622009-06-08 17:35:39 -0700105
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700106[ \t]+ ADVANCE;
Doug Zongker37bee622009-06-08 17:35:39 -0700107
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700108(#.*)?\n gPos += yyleng; ++gLine; gColumn = 1;
Doug Zongker37bee622009-06-08 17:35:39 -0700109
110. return BAD;