diff options
Diffstat (limited to 'edify/lexer.ll')
| -rw-r--r-- | edify/lexer.ll | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/edify/lexer.ll b/edify/lexer.ll index fb2933bee..b764d1699 100644 --- a/edify/lexer.ll +++ b/edify/lexer.ll @@ -16,6 +16,7 @@ */ #include <string.h> +#include <string> #include "expr.h" #include "yydefs.h" @@ -25,9 +26,7 @@ int gLine = 1; int gColumn = 1; int gPos = 0; -// TODO: enforce MAX_STRING_LEN during lexing -char string_buffer[MAX_STRING_LEN]; -char* string_pos; +std::string string_buffer; #define ADVANCE do {yylloc.start=gPos; yylloc.end=gPos+yyleng; \ gColumn+=yyleng; gPos+=yyleng;} while(0) @@ -43,7 +42,7 @@ char* string_pos; \" { BEGIN(STR); - string_pos = string_buffer; + string_buffer.clear(); yylloc.start = gPos; ++gColumn; ++gPos; @@ -54,36 +53,35 @@ char* string_pos; ++gColumn; ++gPos; BEGIN(INITIAL); - *string_pos = '\0'; - yylval.str = strdup(string_buffer); + yylval.str = strdup(string_buffer.c_str()); yylloc.end = gPos; return STRING; } - \\n { gColumn += yyleng; gPos += yyleng; *string_pos++ = '\n'; } - \\t { gColumn += yyleng; gPos += yyleng; *string_pos++ = '\t'; } - \\\" { gColumn += yyleng; gPos += yyleng; *string_pos++ = '\"'; } - \\\\ { gColumn += yyleng; gPos += yyleng; *string_pos++ = '\\'; } + \\n { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\n'); } + \\t { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\t'); } + \\\" { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\"'); } + \\\\ { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\\'); } \\x[0-9a-fA-F]{2} { gColumn += yyleng; gPos += yyleng; int val; sscanf(yytext+2, "%x", &val); - *string_pos++ = val; + string_buffer.push_back(static_cast<char>(val)); } \n { ++gLine; ++gPos; gColumn = 1; - *string_pos++ = yytext[0]; + string_buffer.push_back(yytext[0]); } . { ++gColumn; ++gPos; - *string_pos++ = yytext[0]; + string_buffer.push_back(yytext[0]); } } |