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changed lexer/parser to be able to read float constants, if they have "f"-suffix

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egaburov
2013-09-13 10:26:15 +02:00
parent a97eb7b7cb
commit a9913c8337
2 changed files with 28 additions and 6 deletions
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23
lex.ll
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@@ -76,7 +76,7 @@ static int allTokens[] = {
TOKEN_TASK, TOKEN_TRUE, TOKEN_TYPEDEF, TOKEN_UNIFORM, TOKEN_UNMASKED,
TOKEN_UNSIGNED, TOKEN_VARYING, TOKEN_VOID, TOKEN_WHILE,
TOKEN_STRING_C_LITERAL, TOKEN_DOTDOTDOT,
TOKEN_FLOAT_CONSTANT,
TOKEN_FLOAT_CONSTANT, TOKEN_DOUBLE_CONSTANT,
TOKEN_INT8_CONSTANT, TOKEN_UINT8_CONSTANT,
TOKEN_INT16_CONSTANT, TOKEN_UINT16_CONSTANT,
TOKEN_INT32_CONSTANT, TOKEN_UINT32_CONSTANT,
@@ -152,6 +152,7 @@ void ParserInit() {
tokenToName[TOKEN_STRING_C_LITERAL] = "\"C\"";
tokenToName[TOKEN_DOTDOTDOT] = "...";
tokenToName[TOKEN_FLOAT_CONSTANT] = "TOKEN_FLOAT_CONSTANT";
tokenToName[TOKEN_DOUBLE_CONSTANT] = "TOKEN_DOUBLE_CONSTANT";
tokenToName[TOKEN_INT8_CONSTANT] = "TOKEN_INT8_CONSTANT";
tokenToName[TOKEN_UINT8_CONSTANT] = "TOKEN_UINT8_CONSTANT";
tokenToName[TOKEN_INT16_CONSTANT] = "TOKEN_INT16_CONSTANT";
@@ -266,6 +267,7 @@ void ParserInit() {
tokenNameRemap["TOKEN_STRING_C_LITERAL"] = "\"C\"";
tokenNameRemap["TOKEN_DOTDOTDOT"] = "\'...\'";
tokenNameRemap["TOKEN_FLOAT_CONSTANT"] = "float constant";
tokenNameRemap["TOKEN_DOUBLE_CONSTANT"] = "double constant";
tokenNameRemap["TOKEN_INT8_CONSTANT"] = "int8 constant";
tokenNameRemap["TOKEN_UINT8_CONSTANT"] = "unsigned int8 constant";
tokenNameRemap["TOKEN_INT16_CONSTANT"] = "int16 constant";
@@ -341,6 +343,8 @@ inline int ispcRand() {
WHITESPACE [ \t\r]+
INT_NUMBER (([0-9]+)|(0x[0-9a-fA-F]+)|(0b[01]+))[uUlL]*[kMG]?[uUlL]*
INT_NUMBER_DOTDOTDOT (([0-9]+)|(0x[0-9a-fA-F]+)|(0b[01]+))[uUlL]*[kMG]?[uUlL]*\.\.\.
DOUBLE_NUMBER (([0-9]+|(([0-9]+\.[0-9]*?)|(\.[0-9]+)))([eE][-+]?[0-9]+)??)
HEX_DOUBLE_NUMBER (0x[01](\.[0-9a-fA-F]*)?p[-+]?[0-9]+?)
FLOAT_NUMBER (([0-9]+|(([0-9]+\.[0-9]*[fF]?)|(\.[0-9]+)))([eE][-+]?[0-9]+)?[fF]?)
HEX_FLOAT_NUMBER (0x[01](\.[0-9a-fA-F]*)?p[-+]?[0-9]+[fF]?)
@@ -438,15 +442,28 @@ L?\"(\\.|[^\\"])*\" { lStringConst(&yylval, &yylloc); return TOKEN_STRING_LITERA
}
{DOUBLE_NUMBER} {
RT;
yylval.doubleVal = atof(yytext);
return TOKEN_DOUBLE_CONSTANT;
}
{HEX_DOUBLE_NUMBER} {
RT;
yylval.doubleVal = lParseHexFloat(yytext);
return TOKEN_DOUBLE_CONSTANT;
}
{FLOAT_NUMBER} {
RT;
yylval.floatVal = atof(yytext);
yylval.floatVal = (float)atof(yytext);
return TOKEN_FLOAT_CONSTANT;
}
{HEX_FLOAT_NUMBER} {
RT;
yylval.floatVal = lParseHexFloat(yytext);
yylval.floatVal = (float)lParseHexFloat(yytext);
return TOKEN_FLOAT_CONSTANT;
}