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cc97cfc43e
* language specification files are no longer configured with "configure" * add substitutions for %bindir%, %libdir%, and various llvmgcc related variables needed in the c and cpp spec files. * Implement the stubstituions in the Compiler Driver. * Move st.in to projects/Stacker/tools/stkrc where it belongs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22128 91177308-0d34-0410-b5e6-96231b3b80d8
202 lines
6.6 KiB
C++
202 lines
6.6 KiB
C++
/*===- ConfigLexer.l - Scanner for CompilerDriver Config Files -*- C++ -*--===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Reid Spencer and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the flex scanner for configuration files for the
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// llvmc CompilerDriver.
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//
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//===----------------------------------------------------------------------===*/
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%option prefix="Config"
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%option nostdinit
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%option never-interactive
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%option batch
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%option noyywrap
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%option 8bit
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%option outfile="ConfigLexer.cpp"
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%option ecs
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%option noyymore
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%option noreject
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%pointer
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%{
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#include "ConfigLexer.h"
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#define YY_INPUT(buf,result,max_size) \
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{ \
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assert(ConfigLexerInput != 0 && "Oops"); \
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result = ConfigLexerInput->read(buf,max_size); \
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if (result == 0 ) result = YY_NULL; \
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}
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#define YY_FATAL_ERROR(msg) \
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{ \
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assert(ConfigLexerInput != 0 && "Oops"); \
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ConfigLexerInput->error(msg); \
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}
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#define YY_DECL ConfigLexerTokens llvm::Configlex()
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#define yyterminate() { return EOFTOK; }
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using namespace llvm;
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inline llvm::ConfigLexerTokens
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handleNameContext(llvm::ConfigLexerTokens token) {
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ConfigLexerState.StringVal = yytext;
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if (ConfigLexerState.in_value)
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return OPTION;
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return token;
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}
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inline llvm::ConfigLexerTokens
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handleSubstitution(llvm::ConfigLexerTokens token) {
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if (ConfigLexerState.in_value) {
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ConfigLexerState.StringVal = yytext;
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return token;
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}
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YY_FATAL_ERROR("Substitition tokens not allowed in names" );
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return ERRORTOK;
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};
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inline llvm::ConfigLexerTokens handleValueContext(llvm::ConfigLexerTokens token) {
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ConfigLexerState.StringVal = yytext;
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if (ConfigLexerState.in_value)
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return token;
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return OPTION;
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}
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%}
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ASSEMBLER assembler|Assembler|ASSEMBLER
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COMMAND command|Command|COMMAND
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LANG lang|Lang|LANG
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LIBS libs|Libs|LIBS
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LINKER linker|Linker|LINKER
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NAME name|Name|NAME
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OPT1 opt1|Opt1|OPT1
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OPT2 opt2|Opt2|OPT2
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OPT3 opt3|Opt3|OPT3
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OPT4 opt4|Opt4|OPT4
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OPT5 opt5|Opt5|OPT5
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OPTIMIZER optimizer|Optimizer|OPTIMIZER
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OUTPUT output|Output|OUTPUT
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PREPROCESSES preprocesses|PreProcesses|PREPROCESSES
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PREPROCESSOR preprocessor|PreProcessor|PREPROCESSOR
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REQUIRED required|Required|REQUIRED
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TRANSLATES translates|Translates|TRANSLATES
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TRANSLATOR translator|Translator|TRANSLATOR
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VERSION version|Version|VERSION
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True true|True|TRUE|on|On|ON|yes|Yes|YES
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False false|False|FALSE|off|Off|OFF|no|No|NO
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Bytecode bc|BC|bytecode|Bytecode|BYTECODE
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Assembly asm|ASM|assembly|Assembly|ASSEMBLY
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BadSubst \%[a-zA-Z]*\%
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Comment \#[^\r\n]*\r?\n
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NewLine \r?\n
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Eq \=
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EscNewLine \\\r?\n
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Option [-A-Za-z0-9_:%+/\\|,][-A-Za-z0-9_:+/\\|,@]*
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Sep \.
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String \"[^\"]*\"
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White [ \t]*
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%%
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{White} { if (ConfigLexerState.in_value) return SPACE; }
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{Comment} { /* Ignore comments */
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ConfigLexerState.in_value = false;
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ConfigLexerState.lineNum++;
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return EOLTOK;
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}
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{EscNewLine} { ConfigLexerState.lineNum++;
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/* Don't return EOLTOK! */
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}
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{NewLine} { ConfigLexerState.in_value = false;
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ConfigLexerState.lineNum++;
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return EOLTOK;
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}
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{Eq} { ConfigLexerState.in_value = true;
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return EQUALS;
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}
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{Sep} { return SEPARATOR; }
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{VERSION} { return handleNameContext(VERSION_TOK); }
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{LANG} { return handleNameContext(LANG); }
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{LIBS} { return handleNameContext(LIBS); }
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{NAME} { return handleNameContext(NAME); }
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{OPT1} { return handleNameContext(OPT1); }
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{OPT2} { return handleNameContext(OPT2); }
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{OPT3} { return handleNameContext(OPT3); }
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{OPT4} { return handleNameContext(OPT4); }
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{OPT5} { return handleNameContext(OPT5); }
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{PREPROCESSOR} { return handleNameContext(PREPROCESSOR); }
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{COMMAND} { return handleNameContext(COMMAND); }
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{REQUIRED} { return handleNameContext(REQUIRED); }
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{TRANSLATOR} { return handleNameContext(TRANSLATOR); }
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{PREPROCESSES} { return handleNameContext(PREPROCESSES); }
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{OUTPUT} { return handleNameContext(OUTPUT); }
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{OPTIMIZER} { return handleNameContext(OPTIMIZER); }
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{TRANSLATES} { return handleNameContext(TRANSLATES); }
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{ASSEMBLER} { return handleNameContext(ASSEMBLER); }
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{LINKER} { return handleNameContext(LINKER); }
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%args% { return handleSubstitution(ARGS_SUBST); }
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%bindir% { return handleSubstitution(BINDIR_SUBST); }
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%defs% { return handleSubstitution(DEFS_SUBST); }
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%in% { return handleSubstitution(IN_SUBST); }
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%incls% { return handleSubstitution(INCLS_SUBST); }
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%libdir% { return handleSubstitution(LIBDIR_SUBST); }
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%libs% { return handleSubstitution(LIBS_SUBST); }
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%llvmgccdir% { return handleSubstitution(LLVMGCCDIR_SUBST); }
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%llvmgccarch% { return handleSubstitution(LLVMGCCARCH_SUBST); }
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%llvmgcc% { return handleSubstitution(LLVMGCC_SUBST); }
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%llvmgxx% { return handleSubstitution(LLVMGXX_SUBST); }
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%llvmcc1% { return handleSubstitution(LLVMCC1_SUBST); }
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%llvmcc1plus% { return handleSubstitution(LLVMCC1PLUS_SUBST); }
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%opt% { return handleSubstitution(OPT_SUBST); }
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%out% { return handleSubstitution(OUT_SUBST); }
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%stats% { return handleSubstitution(STATS_SUBST); }
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%target% { return handleSubstitution(TARGET_SUBST); }
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%time% { return handleSubstitution(TIME_SUBST); }
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%verbose% { return handleSubstitution(VERBOSE_SUBST); }
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%fOpts% { return handleSubstitution(FOPTS_SUBST); }
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%MOpts% { return handleSubstitution(MOPTS_SUBST); }
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%WOpts% { return handleSubstitution(WOPTS_SUBST); }
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{Assembly} { return handleValueContext(ASSEMBLY); }
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{Bytecode} { return handleValueContext(BYTECODE); }
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{True} { return handleValueContext(TRUETOK); }
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{False} { return handleValueContext(FALSETOK); }
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{Option} { ConfigLexerState.StringVal = yytext; return OPTION; }
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{String} { ConfigLexerState.StringVal = yytext+1; // Nuke start quote
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ConfigLexerState.StringVal.erase(
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--ConfigLexerState.StringVal.end());
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return STRING;
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}
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{BadSubst} { YY_FATAL_ERROR("Invalid substitution token"); }
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%%
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