mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-24 00:20:01 +00:00
49 lines
640 B
C
49 lines
640 B
C
#ifndef LEXER_H
|
|
#define LEXER_H
|
|
|
|
enum
|
|
{
|
|
LX_UNTERMINATED_STRING = -1,
|
|
LX_INVALID_CHARACTER = -2,
|
|
};
|
|
|
|
enum
|
|
{
|
|
LX_EOF = 256,
|
|
LX_TAG,
|
|
LX_NUMBER,
|
|
LX_STRING,
|
|
LX_VERSION,
|
|
LX_LPAREN,
|
|
LX_RPAREN,
|
|
};
|
|
|
|
typedef struct
|
|
{
|
|
const char* str;
|
|
unsigned len;
|
|
}
|
|
lx_string_t;
|
|
|
|
typedef struct
|
|
{
|
|
/* source code */
|
|
int line;
|
|
|
|
/* lexer state */
|
|
const char* current;
|
|
const char* end;
|
|
int last_was_version;
|
|
|
|
/* lookahead */
|
|
int token;
|
|
lx_string_t lexeme;
|
|
}
|
|
lx_state_t;
|
|
|
|
int lx_next( lx_state_t* lexer );
|
|
void lx_new( lx_state_t* lexer, const char* source, unsigned srclen );
|
|
|
|
#endif /* LEXER_H */
|
|
|