/*
- * Copyright (C) 2012
+ * Copyright (C) 2012, 2013
* Wolfgang Bumiller
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
*/
#ifndef GMQCC_LEXER_HDR
#define GMQCC_LEXER_HDR
-
typedef struct token_s token;
-#include "ast.h"
-
struct token_s {
int ttype;
TOKEN_ATTRIBUTE_OPEN, /* [[ */
TOKEN_ATTRIBUTE_CLOSE, /* ]] */
+ TOKEN_VA_ARGS, /* for the ftepp only */
+ TOKEN_VA_ARGS_ARRAY, /* for the ftepp only */
+ TOKEN_VA_COUNT, /* to get the count of vaargs */
+
TOKEN_STRINGCONST, /* not the typename but an actual "string" */
TOKEN_CHARCONST,
TOKEN_VECTORCONST,
TOKEN_WHITE,
TOKEN_EOL,
- TOKEN_EOF,
+ /* if we add additional tokens before this, the exposed API
+ * should not be broken anyway, but EOF/ERROR/... should
+ * still be at the bottom
+ */
+ TOKEN_EOF = 1024,
/* We use '< TOKEN_ERROR', so TOKEN_FATAL must come after it and any
* other error related tokens as well
int value;
} frame_macro;
-typedef struct {
+typedef struct lex_file_s {
FILE *file;
const char *open_string;
size_t open_string_length;
char *name;
size_t line;
size_t sline; /* line at the start of a token */
+ size_t column;
- char peek[256];
+ int peek[256];
size_t peekpos;
bool eof;
unsigned int flags;
} oper_info;
-#define opid1(a) (a)
-#define opid2(a,b) ((a<<8)|b)
-#define opid3(a,b,c) ((a<<16)|(b<<8)|c)
+/*
+ * Explicit uint8_t casts since the left operand of shift operator cannot
+ * be negative, even though it won't happen, this supresses the future
+ * possibility.
+ */
+#define opid1(a) ((uint8_t)a)
+#define opid2(a,b) (((uint8_t)a<<8) |(uint8_t)b)
+#define opid3(a,b,c) (((uint8_t)a<<16)|((uint8_t)b<<8)|(uint8_t)c)
static const oper_info c_operators[] = {
{ "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
- { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 15, OP_SUFFIX},
- { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 15, OP_SUFFIX},
- { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0 },
- { "(", 0, opid1('('), ASSOC_LEFT, 15, 0 }, /* function call */
- { "[", 2, opid1('['), ASSOC_LEFT, 15, 0 }, /* array subscript */
+ { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 17, OP_SUFFIX},
+ { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 17, OP_SUFFIX},
+ { ".", 2, opid1('.'), ASSOC_LEFT, 17, 0 },
+ { "(", 0, opid1('('), ASSOC_LEFT, 17, 0 }, /* function call */
+ { "[", 2, opid1('['), ASSOC_LEFT, 17, 0 }, /* array subscript */
+
+ { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 16, OP_PREFIX },
+ { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 16, OP_PREFIX },
+
+ { "**", 2, opid2('*', '*'), ASSOC_RIGHT, 15, 0 },
{ "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
{ "~", 1, opid2('~', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
{ "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
{ "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
- { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
- { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
/* { "&", 1, opid2('&','P'), ASSOC_RIGHT, 14, OP_PREFIX }, */
{ "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
{ "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
{ ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
+ { "<=>", 2, opid3('<','=','>'), ASSOC_LEFT, 10, 0 },
{ "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
{ ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
{ "&=", 2, opid2('&','='), ASSOC_RIGHT, 2, 0 },
{ "^=", 2, opid2('^','='), ASSOC_RIGHT, 2, 0 },
{ "|=", 2, opid2('|','='), ASSOC_RIGHT, 2, 0 },
+ { "&~=", 2, opid3('&','~','='), ASSOC_RIGHT, 2, 0 },
{ ":", 0, opid2(':','?'), ASSOC_RIGHT, 1, 0 },
{ "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
{ "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
+ { "<<", 2, opid2('<','<'), ASSOC_LEFT, 11, 0 },
+ { ">>", 2, opid2('>','>'), ASSOC_LEFT, 11, 0 },
+
{ "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
{ ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
{ "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
extern const oper_info *operators;
extern size_t operator_count;
-void lexerror(lex_file*, const char *fmt, ...);
+/*void lexerror(lex_file*, const char *fmt, ...);*/
#endif