tools/llvmc/ConfigLexer.l.cvs

   1 /*===- ConfigLexer.l - Scanner for CompilerDriver Config Files -*- C++ -*--===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file was developed by Reid Spencer and is distributed under the
   6 // University of Illinois Open Source License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file implements the flex scanner for configuration files for the
  11 // llvmc CompilerDriver.
  12 //
  13 //===----------------------------------------------------------------------===*/
  14
  15
  16 %option prefix="Config"
  17 %option nostdinit
  18 %option never-interactive
  19 %option batch
  20 %option noyywrap
  21 %option 8bit
  22 %option outfile="ConfigLexer.cpp"
  23 %option ecs
  24 %option noyymore
  25 %option noreject
  26 %pointer
  27
  28 %{
  29
  30 #include "ConfigLexer.h"
  31
  32 #define YY_INPUT(buf,result,max_size) \
  33   { \
  34     assert(ConfigLexerInput != 0 && "Oops"); \
  35     result = ConfigLexerInput->read(buf,max_size); \
  36     if (result == 0 ) result = YY_NULL; \
  37   }
  38
  39 #define YY_FATAL_ERROR(msg) \
  40   { \
  41     assert(ConfigLexerInput != 0 && "Oops"); \
  42     ConfigLexerInput->error(msg); \
  43   }
  44
  45 #define YY_DECL ConfigLexerTokens llvm::Configlex()
  46
  47 #define yyterminate() { return EOFTOK; }
  48
  49 using namespace llvm;
  50
  51 inline llvm::ConfigLexerTokens
  52 handleNameContext(llvm::ConfigLexerTokens token) {
  53   ConfigLexerState.StringVal = yytext;
  54   if (ConfigLexerState.in_value)
  55     return OPTION;
  56   return token;
  57 }
  58
  59 inline llvm::ConfigLexerTokens
  60 handleSubstitution(llvm::ConfigLexerTokens token) {
  61   if (ConfigLexerState.in_value) {
  62     ConfigLexerState.StringVal = yytext;
  63     return token;
  64   }
  65   YY_FATAL_ERROR("Substitition tokens not allowed in names" );
  66   return ERRORTOK;
  67 }
  68
  69 inline llvm::ConfigLexerTokens handleValueContext(llvm::ConfigLexerTokens token) {
  70   ConfigLexerState.StringVal = yytext;
  71   if (ConfigLexerState.in_value)
  72     return token;
  73   return OPTION;
  74 }
  75
  76 %}
  77
  78 ASSEMBLER       assembler|Assembler|ASSEMBLER
  79 COMMAND         command|Command|COMMAND
  80 LANG            lang|Lang|LANG
  81 LIBS            libs|Libs|LIBS
  82 LINKER          linker|Linker|LINKER
  83 NAME            name|Name|NAME
  84 OPT1            opt1|Opt1|OPT1
  85 OPT2            opt2|Opt2|OPT2
  86 OPT3            opt3|Opt3|OPT3
  87 OPT4            opt4|Opt4|OPT4
  88 OPT5            opt5|Opt5|OPT5
  89 OPTIMIZER       optimizer|Optimizer|OPTIMIZER
  90 OUTPUT          output|Output|OUTPUT
  91 PREPROCESSES    preprocesses|PreProcesses|PREPROCESSES
  92 PREPROCESSOR    preprocessor|PreProcessor|PREPROCESSOR
  93 REQUIRED        required|Required|REQUIRED
  94 TRANSLATES      translates|Translates|TRANSLATES
  95 TRANSLATOR      translator|Translator|TRANSLATOR
  96 VERSION         version|Version|VERSION
  97
  98 True            true|True|TRUE|on|On|ON|yes|Yes|YES
  99 False           false|False|FALSE|off|Off|OFF|no|No|NO
 100 Bytecode        bc|BC|bytecode|Bytecode|BYTECODE
 101 Assembly        asm|ASM|assembly|Assembly|ASSEMBLY
 102
 103 BadSubst        \%[a-zA-Z]*\%
 104 Comment         \#[^\r\n]*\r?\n
 105 NewLine         \r?\n
 106 Eq              \=
 107 EscNewLine      \\\r?\n
 108 Option          [-A-Za-z0-9_:%+/\\|,][-A-Za-z0-9_:+/\\|,@]*
 109 Sep             \.
 110 String          \"[^\"]*\"
 111 White           [ \t]*
 112
 113
 114 %%
 115
 116 {White}         { if (ConfigLexerState.in_value) return SPACE; }
 117
 118 {Comment}       { /* Ignore comments */
 119                   ConfigLexerState.in_value = false;
 120                   ConfigLexerState.lineNum++;
 121                   return EOLTOK;
 122                 }
 123
 124 {EscNewLine}    { ConfigLexerState.lineNum++;
 125                   /* Don't return EOLTOK! */
 126                 }
 127
 128 {NewLine}       { ConfigLexerState.in_value = false;
 129                   ConfigLexerState.lineNum++;
 130                   return EOLTOK;
 131                 }
 132
 133 {Eq}            { ConfigLexerState.in_value = true;
 134                   return EQUALS;
 135                 }
 136
 137 {Sep}           { return SEPARATOR; }
 138
 139 {VERSION}       { return handleNameContext(VERSION_TOK); }
 140
 141 {LANG}          { return handleNameContext(LANG); }
 142 {LIBS}          { return handleNameContext(LIBS); }
 143 {NAME}          { return handleNameContext(NAME); }
 144 {OPT1}          { return handleNameContext(OPT1); }
 145 {OPT2}          { return handleNameContext(OPT2); }
 146 {OPT3}          { return handleNameContext(OPT3); }
 147 {OPT4}          { return handleNameContext(OPT4); }
 148 {OPT5}          { return handleNameContext(OPT5); }
 149
 150 {PREPROCESSOR}  { return handleNameContext(PREPROCESSOR); }
 151 {COMMAND}       { return handleNameContext(COMMAND); }
 152 {REQUIRED}      { return handleNameContext(REQUIRED); }
 153
 154 {TRANSLATOR}    { return handleNameContext(TRANSLATOR); }
 155 {PREPROCESSES}  { return handleNameContext(PREPROCESSES); }
 156 {OUTPUT}        { return handleNameContext(OUTPUT); }
 157
 158 {OPTIMIZER}     { return handleNameContext(OPTIMIZER); }
 159 {TRANSLATES}    { return handleNameContext(TRANSLATES); }
 160
 161 {ASSEMBLER}     { return handleNameContext(ASSEMBLER); }
 162
 163 {LINKER}        { return handleNameContext(LINKER); }
 164
 165 %args%          { return handleSubstitution(ARGS_SUBST); }
 166 %bindir%        { return handleSubstitution(BINDIR_SUBST); }
 167 %defs%          { return handleSubstitution(DEFS_SUBST); }
 168 %in%            { return handleSubstitution(IN_SUBST); }
 169 %incls%         { return handleSubstitution(INCLS_SUBST); }
 170 %libdir%        { return handleSubstitution(LIBDIR_SUBST); }
 171 %libs%          { return handleSubstitution(LIBS_SUBST); }
 172 %llvmgccdir%    { return handleSubstitution(LLVMGCCDIR_SUBST); }
 173 %llvmgccarch%   { return handleSubstitution(LLVMGCCARCH_SUBST); }
 174 %llvmgcc%       { return handleSubstitution(LLVMGCC_SUBST); }
 175 %llvmgxx%       { return handleSubstitution(LLVMGXX_SUBST); }
 176 %llvmcc1%       { return handleSubstitution(LLVMCC1_SUBST); }
 177 %llvmcc1plus%   { return handleSubstitution(LLVMCC1PLUS_SUBST); }
 178 %opt%           { return handleSubstitution(OPT_SUBST); }
 179 %out%           { return handleSubstitution(OUT_SUBST); }
 180 %stats%         { return handleSubstitution(STATS_SUBST); }
 181 %target%        { return handleSubstitution(TARGET_SUBST); }
 182 %time%          { return handleSubstitution(TIME_SUBST); }
 183 %verbose%       { return handleSubstitution(VERBOSE_SUBST); }
 184 %fOpts%         { return handleSubstitution(FOPTS_SUBST); }
 185 %MOpts%         { return handleSubstitution(MOPTS_SUBST); }
 186 %WOpts%         { return handleSubstitution(WOPTS_SUBST); }
 187
 188 {Assembly}      { return handleValueContext(ASSEMBLY); }
 189 {Bytecode}      { return handleValueContext(BYTECODE); }
 190 {True}          { return handleValueContext(TRUETOK); }
 191 {False}         { return handleValueContext(FALSETOK); }
 192
 193 {Option}        { ConfigLexerState.StringVal = yytext; return OPTION; }
 194 {String}        { ConfigLexerState.StringVal = yytext+1;  // Nuke start quote
 195                   ConfigLexerState.StringVal.erase(
 196                   --ConfigLexerState.StringVal.end());
 197                   return STRING;
 198                 }
 199 {BadSubst}      { YY_FATAL_ERROR("Invalid substitution token"); }
 200
 201 %%