37bee62aef
Edify is a simple scripting language for OTA installation, to be used when we move to OTAs being installed via binaries shipped with the package.
98 lines
2.2 KiB
Plaintext
98 lines
2.2 KiB
Plaintext
%{
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/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "expr.h"
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#include "parser.h"
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int gLine = 1;
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int gColumn = 1;
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// TODO: enforce MAX_STRING_LEN during lexing
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char string_buffer[MAX_STRING_LEN];
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char* string_pos;
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%}
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%x STR
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%option noyywrap
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%%
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\" {
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++gColumn;
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BEGIN(STR);
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string_pos = string_buffer;
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}
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<STR>{
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\" {
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++gColumn;
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BEGIN(INITIAL);
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*string_pos = '\0';
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yylval.str = strdup(string_buffer);
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return STRING;
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}
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\\n { gColumn += yyleng; *string_pos++ = '\n'; }
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\\t { gColumn += yyleng; *string_pos++ = '\t'; }
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\\\" { gColumn += yyleng; *string_pos++ = '\"'; }
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\\\\ { gColumn += yyleng; *string_pos++ = '\\'; }
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\\x[0-9a-fA-F]{2} {
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gColumn += yyleng;
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int val;
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sscanf(yytext+2, "%x", &val);
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*string_pos++ = val;
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}
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\n {
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++gLine;
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gColumn = 1;
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*string_pos++ = yytext[0];
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}
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. {
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++gColumn;
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*string_pos++ = yytext[0];
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}
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}
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if { gColumn += yyleng; return IF; }
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then { gColumn += yyleng; return THEN; }
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else { gColumn += yyleng; return ELSE; }
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endif { gColumn += yyleng; return ENDIF; }
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[a-zA-Z0-9_:/]+ {
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gColumn += yyleng;
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yylval.str = strdup(yytext);
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return STRING;
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}
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\&\& { gColumn += yyleng; return AND; }
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\|\| { gColumn += yyleng; return OR; }
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== { gColumn += yyleng; return EQ; }
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!= { gColumn += yyleng; return NE; }
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[+(),!;] { gColumn += yyleng; return yytext[0]; }
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[ \t]+ gColumn += yyleng;
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(#.*)?\n { ++gLine; gColumn = 1; }
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. return BAD;
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