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23 #ifndef GMQCC_LEXER_HDR
24 #define GMQCC_LEXER_HDR
26 typedef struct token_s token;
50 void token_delete(token*);
51 token* token_copy(const token *cp);
52 void token_delete_all(token *t);
53 token* token_copy_all(const token *cp);
60 /* Other tokens which we can return: */
70 TOKEN_KEYWORD, /* loop */
72 TOKEN_DOTS, /* 3 dots, ... */
74 TOKEN_ATTRIBUTE_OPEN, /* [[ */
75 TOKEN_ATTRIBUTE_CLOSE, /* ]] */
77 TOKEN_VA_ARGS, /* for the ftepp only */
78 TOKEN_VA_ARGS_ARRAY, /* for the ftepp only */
79 TOKEN_VA_COUNT, /* to get the count of vaargs */
81 TOKEN_STRINGCONST, /* not the typename but an actual "string" */
90 /* if we add additional tokens before this, the exposed API
91 * should not be broken anyway, but EOF/ERROR/... should
92 * still be at the bottom
96 /* We use '< TOKEN_ERROR', so TOKEN_FATAL must come after it and any
97 * other error related tokens as well
100 TOKEN_FATAL /* internal error, eg out of memory */
108 typedef struct lex_file_s {
110 const char *open_string;
111 size_t open_string_length;
112 size_t open_string_pos;
116 size_t sline; /* line at the start of a token */
123 token tok; /* not a pointer anymore */
127 bool nodigraphs; /* used when lexing string constants */
128 bool preprocessing; /* whitespace and EOLs become actual tokens */
129 bool mergelines; /* backslash at the end of a line escapes the newline */
139 lex_file* lex_open (const char *file);
140 lex_file* lex_open_string(const char *str, size_t len, const char *name);
141 void lex_close(lex_file *lex);
142 int lex_do (lex_file *lex);
143 void lex_cleanup(void);
159 unsigned int operands;
167 #define opid2(a,b) ((a<<8)|b)
168 #define opid3(a,b,c) ((a<<16)|(b<<8)|c)
170 static const oper_info c_operators[] = {
171 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
173 { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 17, OP_SUFFIX},
174 { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 17, OP_SUFFIX},
175 { ".", 2, opid1('.'), ASSOC_LEFT, 17, 0 },
176 { "(", 0, opid1('('), ASSOC_LEFT, 17, 0 }, /* function call */
177 { "[", 2, opid1('['), ASSOC_LEFT, 17, 0 }, /* array subscript */
179 { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 16, OP_PREFIX },
180 { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 16, OP_PREFIX },
182 { "**", 2, opid2('*', '*'), ASSOC_RIGHT, 15, 0 },
184 { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
185 { "~", 1, opid2('~', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
186 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
187 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
188 /* { "&", 1, opid2('&','P'), ASSOC_RIGHT, 14, OP_PREFIX }, */
190 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
191 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
192 { "%", 2, opid1('%'), ASSOC_LEFT, 13, 0 },
194 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
195 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
197 { "<<", 2, opid2('<','<'), ASSOC_LEFT, 11, 0 },
198 { ">>", 2, opid2('>','>'), ASSOC_LEFT, 11, 0 },
200 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
201 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
202 { "<=>", 2, opid3('<','=','>'), ASSOC_LEFT, 10, 0 },
203 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
204 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
206 { "==", 2, opid2('=','='), ASSOC_LEFT, 9, 0 },
207 { "!=", 2, opid2('!','='), ASSOC_LEFT, 9, 0 },
209 { "&", 2, opid1('&'), ASSOC_LEFT, 8, 0 },
211 { "^", 2, opid1('^'), ASSOC_LEFT, 7, 0 },
213 { "|", 2, opid1('|'), ASSOC_LEFT, 6, 0 },
215 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
217 { "||", 2, opid2('|','|'), ASSOC_LEFT, 4, 0 },
219 { "?", 3, opid2('?',':'), ASSOC_RIGHT, 3, 0 },
221 { "=", 2, opid1('='), ASSOC_RIGHT, 2, 0 },
222 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 2, 0 },
223 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 2, 0 },
224 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 2, 0 },
225 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 2, 0 },
226 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 2, 0 },
227 { ">>=", 2, opid3('>','>','='), ASSOC_RIGHT, 2, 0 },
228 { "<<=", 2, opid3('<','<','='), ASSOC_RIGHT, 2, 0 },
229 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 2, 0 },
230 { "^=", 2, opid2('^','='), ASSOC_RIGHT, 2, 0 },
231 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 2, 0 },
232 { "&~=", 2, opid3('&','~','='), ASSOC_RIGHT, 2, 0 },
234 { ":", 0, opid2(':','?'), ASSOC_RIGHT, 1, 0 },
236 { ",", 2, opid1(','), ASSOC_LEFT, 0, 0 }
238 static const size_t c_operator_count = (sizeof(c_operators) / sizeof(c_operators[0]));
240 static const oper_info fte_operators[] = {
241 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
243 { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 15, OP_SUFFIX},
244 { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 15, OP_SUFFIX},
245 { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0 },
246 { "(", 0, opid1('('), ASSOC_LEFT, 15, 0 }, /* function call */
247 { "[", 2, opid1('['), ASSOC_LEFT, 15, 0 }, /* array subscript */
249 { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
250 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
251 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
252 { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
253 { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
255 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
256 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
257 { "&", 2, opid1('&'), ASSOC_LEFT, 13, 0 },
258 { "|", 2, opid1('|'), ASSOC_LEFT, 13, 0 },
260 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
261 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
263 { "<<", 2, opid2('<','<'), ASSOC_LEFT, 11, 0 },
264 { ">>", 2, opid2('>','>'), ASSOC_LEFT, 11, 0 },
266 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
267 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
268 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
269 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
270 { "==", 2, opid2('=','='), ASSOC_LEFT, 10, 0 },
271 { "!=", 2, opid2('!','='), ASSOC_LEFT, 10, 0 },
273 { "?", 3, opid2('?',':'), ASSOC_RIGHT, 9, 0 },
275 { "=", 2, opid1('='), ASSOC_RIGHT, 8, 0 },
276 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 8, 0 },
277 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 8, 0 },
278 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 8, 0 },
279 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 8, 0 },
280 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 8, 0 },
281 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 8, 0 },
282 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 8, 0 },
283 { "&~=", 2, opid3('&','~','='), ASSOC_RIGHT, 8, 0 },
285 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
286 { "||", 2, opid2('|','|'), ASSOC_LEFT, 5, 0 },
288 /* Leave precedence 3 for : with -fcorrect-ternary */
289 { ",", 2, opid1(','), ASSOC_LEFT, 2, 0 },
290 { ":", 0, opid2(':','?'), ASSOC_RIGHT, 1, 0 }
292 static const size_t fte_operator_count = (sizeof(fte_operators) / sizeof(fte_operators[0]));
294 static const oper_info qcc_operators[] = {
295 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
297 { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0 },
298 { "(", 0, opid1('('), ASSOC_LEFT, 15, 0 }, /* function call */
299 { "[", 2, opid1('['), ASSOC_LEFT, 15, 0 }, /* array subscript */
301 { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
302 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
303 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
305 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
306 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
307 { "&", 2, opid1('&'), ASSOC_LEFT, 13, 0 },
308 { "|", 2, opid1('|'), ASSOC_LEFT, 13, 0 },
310 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
311 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
313 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
314 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
315 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
316 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
317 { "==", 2, opid2('=','='), ASSOC_LEFT, 10, 0 },
318 { "!=", 2, opid2('!','='), ASSOC_LEFT, 10, 0 },
320 { "=", 2, opid1('='), ASSOC_RIGHT, 8, 0 },
321 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 8, 0 },
322 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 8, 0 },
323 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 8, 0 },
324 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 8, 0 },
325 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 8, 0 },
326 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 8, 0 },
327 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 8, 0 },
329 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
330 { "||", 2, opid2('|','|'), ASSOC_LEFT, 5, 0 },
332 { ",", 2, opid1(','), ASSOC_LEFT, 2, 0 },
334 static const size_t qcc_operator_count = (sizeof(qcc_operators) / sizeof(qcc_operators[0]));
336 extern const oper_info *operators;
337 extern size_t operator_count;
338 void lexerror(lex_file*, const char *fmt, ...);