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/*===- ConfigLexer.l - Scanner for CompilerDriver Config Files -*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Reid Spencer and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the flex scanner for configuration files for the
// llvmc CompilerDriver.
//
//===----------------------------------------------------------------------===*/
%option prefix="Config"
%option yylineno
%option nostdinit
%option never-interactive
%option batch
%option noyywrap
%option nodefault
%option 8bit
%option outfile="ConfigLexer.cpp"
%option ecs
%option noreject
%option noyymore
%array
%{
#include "ConfigLexer.h"
#define YY_INPUT(buf,result,max_size) \
{ \
assert(ConfigLexerInput != 0 && "Oops"); \
result = ConfigLexerInput->read(buf,max_size); \
if (result == 0 ) result = YY_NULL; \
}
#define YY_DECL ConfigLexerTokens llvm::Configlex()
#define yyterminate() { return EOFTOK; }
using namespace llvm;
/* Conversion of text ints to binary */
static int64_t IntToVal(const char *Buffer) {
int64_t Result = 0;
for (; *Buffer; Buffer++) {
int64_t OldRes = Result;
Result *= 10;
Result += *Buffer-'0';
}
return Result;
}
bool in_value = false;
%}
LANG lang|Lang|LANG
PREPROCESSOR preprocessor|PreProcessor|PREPROCESSOR
TRANSLATOR translator|Translator|TRANSLATOR
OPTIMIZER optimizer|Optimizer|OPTIMIZER
ASSEMBLER assembler|Assembler|ASSEMBLER
LINKER linker|Linker|LINKER
NAME name|Name|NAME
REQUIRED required|Required|REQUIRED
COMMAND command|Command|COMMAND
PREPROCESSES preprocesses|PreProcesses|PREPROCESSES
GROKS_DASH_O groks_dash_O|Groks_Dash_O|GROKS_DASH_O
GROKS_O10N groks_optimization|Groks_Optimization|GROKS_OPTIMIZATION
OPTIMIZES optimizes|Optimizes|OPTIMIZES
OPT1 opt1|Opt1|OPT1
OPT2 opt2|Opt2|OPT2
OPT3 opt3|Opt3|OPT3
OPT4 opt4|Opt4|OPT4
OPT5 opt5|Opt5|OPT5
Comment \#[^\n]*
NewLine \n
White [ \t]*
Option [-A-Za-z0-9_:%+/\\|,]*
Sep \.
Eq \=
String \"[^\"]*\"
Integer [-+]?[0-9]+
True true|True|TRUE
False false|False|FALSE
On on|On|ON
Off off|Off|OFF
Yes yes|Yes|YES
No no|No|NO
%%
{NewLine} { in_value = false; return EOLTOK; }
{Eq} { in_value = true; return EQUALS; }
{Comment} { /* Ignore comments */ }
{White} { /* Ignore whitespace */ }
{LANG} { if (in_value) { ConfigLexerData.StringVal = "lang";
return OPTION; } else return LANG; }
{PREPROCESSOR} { if (in_value) { ConfigLexerData.StringVal = "preprocessor";
return OPTION; } else return PREPROCESSOR; }
{TRANSLATOR} { if (in_value) { ConfigLexerData.StringVal = "translator";
return OPTION; } else return TRANSLATOR; }
{OPTIMIZER} { if (in_value) { ConfigLexerData.StringVal = "optimizer";
return OPTION; } else return OPTIMIZER; }
{ASSEMBLER} { if (in_value) { ConfigLexerData.StringVal = "assembler";
return OPTION; } else return ASSEMBLER; }
{LINKER} { if (in_value) { ConfigLexerData.StringVal = "linker";
return OPTION; } else return LINKER; }
{NAME} { if (in_value) { ConfigLexerData.StringVal = "name";
return OPTION; } else return NAME; }
{REQUIRED} { if (in_value) { ConfigLexerData.StringVal = "required";
return OPTION; } else return REQUIRED; }
{COMMAND} { if (in_value) { ConfigLexerData.StringVal = "command";
return OPTION; } else return COMMAND; }
{PREPROCESSES} { if (in_value) { ConfigLexerData.StringVal = "preprocesses";
return OPTION; } else return PREPROCESSES; }
{GROKS_DASH_O} { if (in_value) { ConfigLexerData.StringVal = "groks_dash_O";
return OPTION; } else return GROKS_DASH_O; }
{GROKS_O10N} { if (in_value) { ConfigLexerData.StringVal =
"groks_optimization"; return OPTION; }
else return GROKS_O10N; }
{OPTIMIZES} { if (in_value) { ConfigLexerData.StringVal = "optimizes";
return OPTION; } else return OPTIMIZES; }
{OPT1} { if (in_value) { ConfigLexerData.StringVal = "opt1";
return OPTION; } else return OPT1; }
{OPT2} { if (in_value) { ConfigLexerData.StringVal = "opt2";
return OPTION; } else return OPT2; }
{OPT3} { if (in_value) { ConfigLexerData.StringVal = "opt3";
return OPTION; } else return OPT3; }
{OPT4} { if (in_value) { ConfigLexerData.StringVal = "opt4";
return OPTION; } else return OPT4; }
{OPT5} { if (in_value) { ConfigLexerData.StringVal = "opt5";
return OPTION; } else return OPT5; }
@in@ { if (in_value) return IN_SUBST; else return ERRORTOK; }
@out@ { if (in_value) return OUT_SUBST; else return ERRORTOK; }
{True} { if (in_value) return TRUETOK; else return ERRORTOK; }
{On} { if (in_value) return TRUETOK; else return ERRORTOK; }
{Yes} { if (in_value) return TRUETOK; else return ERRORTOK; }
{False} { if (in_value) return FALSETOK; else return ERRORTOK; }
{Off} { if (in_value) return FALSETOK; else return ERRORTOK; }
{No} { if (in_value) return FALSETOK; else return ERRORTOK; }
{Option} { ConfigLexerData.StringVal = yytext; return OPTION; }
{Integer} { ConfigLexerData.IntegerVal = IntToVal(yytext); return INTEGER; }
{String} { yytext[yyleng-1] = 0; // nuke end quote
ConfigLexerData.StringVal = yytext+1; // Nuke start quote
return STRING;
}
{Sep} { if (in_value) { ConfigLexerData.StringVal = yytext;
return OPTION; } }
%%
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