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23 #ifndef GMQCC_LEXER_HDR
24 #define GMQCC_LEXER_HDR
27 typedef struct token_s token;
51 void token_delete(token*);
52 token* token_copy(const token *cp);
53 void token_delete_all(token *t);
54 token* token_copy_all(const token *cp);
61 /* Other tokens which we can return: */
71 TOKEN_KEYWORD, /* loop */
73 TOKEN_DOTS, /* 3 dots, ... */
75 TOKEN_ATTRIBUTE_OPEN, /* [[ */
76 TOKEN_ATTRIBUTE_CLOSE, /* ]] */
78 TOKEN_VA_ARGS, /* for the ftepp only */
79 TOKEN_VA_ARGS_ARRAY, /* for the ftepp only */
80 TOKEN_VA_COUNT, /* to get the count of vaargs */
82 TOKEN_STRINGCONST, /* not the typename but an actual "string" */
91 /* if we add additional tokens before this, the exposed API
92 * should not be broken anyway, but EOF/ERROR/... should
93 * still be at the bottom
97 /* We use '< TOKEN_ERROR', so TOKEN_FATAL must come after it and any
98 * other error related tokens as well
101 TOKEN_FATAL /* internal error, eg out of memory */
109 typedef struct lex_file_s {
111 const char *open_string;
112 size_t open_string_length;
113 size_t open_string_pos;
117 size_t sline; /* line at the start of a token */
125 token tok; /* not a pointer anymore */
129 unsigned nodigraphs:1; /* used when lexing string constants */
130 unsigned preprocessing:1; /* whitespace and EOLs become actual tokens */
131 unsigned mergelines:1; /* backslash at the end of a line escapes the newline */
132 } flags; /* sizeof == 1 */
141 lex_file* lex_open (const char *file);
142 lex_file* lex_open_string(const char *str, size_t len, const char *name);
143 void lex_close(lex_file *lex);
144 int lex_do (lex_file *lex);
145 void lex_cleanup(void);
161 unsigned int operands;
170 * Explicit uint8_t casts since the left operand of shift operator cannot
171 * be negative, even though it won't happen, this supresses the future
174 #define opid1(a) ((uint8_t)a)
175 #define opid2(a,b) (((uint8_t)a<<8) |(uint8_t)b)
176 #define opid3(a,b,c) (((uint8_t)a<<16)|((uint8_t)b<<8)|(uint8_t)c)
178 static const oper_info c_operators[] = {
179 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX, false}, /* paren expression - non function call */
181 { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 17, OP_SUFFIX, false},
182 { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 17, OP_SUFFIX, false},
183 { ".", 2, opid1('.'), ASSOC_LEFT, 17, 0, false},
184 { "(", 0, opid1('('), ASSOC_LEFT, 17, 0, false}, /* function call */
185 { "[", 2, opid1('['), ASSOC_LEFT, 17, 0, false}, /* array subscript */
187 { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 16, OP_PREFIX, false},
188 { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 16, OP_PREFIX, false},
190 { "**", 2, opid2('*','*'), ASSOC_RIGHT, 14, 0, true},
191 { "!", 1, opid2('!','P'), ASSOC_RIGHT, 14, OP_PREFIX, true},
192 { "~", 1, opid2('~','P'), ASSOC_RIGHT, 14, OP_PREFIX, true},
193 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX, false},
194 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX, true},
195 /* { "&", 1, opid2('&','P'), ASSOC_RIGHT, 14, OP_PREFIX, false}, */
197 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0, true},
198 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0, true},
199 { "%", 2, opid1('%'), ASSOC_LEFT, 13, 0, true},
200 { "><", 2, opid2('>','<'), ASSOC_LEFT, 13, 0, true},
202 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0, true},
203 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0, true},
205 { "<<", 2, opid2('<','<'), ASSOC_LEFT, 11, 0, true},
206 { ">>", 2, opid2('>','>'), ASSOC_LEFT, 11, 0, true},
208 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0, false},
209 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0, false},
210 { "<=>", 2, opid3('<','=','>'), ASSOC_LEFT, 10, 0, true},
211 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0, false},
212 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0, false},
214 { "==", 2, opid2('=','='), ASSOC_LEFT, 9, 0, true},
215 { "!=", 2, opid2('!','='), ASSOC_LEFT, 9, 0, true},
217 { "&", 2, opid1('&'), ASSOC_LEFT, 8, 0, true},
219 { "^", 2, opid1('^'), ASSOC_LEFT, 7, 0, true},
221 { "|", 2, opid1('|'), ASSOC_LEFT, 6, 0, true},
223 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0, true},
225 { "||", 2, opid2('|','|'), ASSOC_LEFT, 4, 0, true},
227 { "?", 3, opid2('?',':'), ASSOC_RIGHT, 3, 0, true},
229 { "=", 2, opid1('='), ASSOC_RIGHT, 2, 0, false},
230 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 2, 0, false},
231 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 2, 0, false},
232 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 2, 0, false},
233 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 2, 0, false},
234 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 2, 0, false},
235 { ">>=", 2, opid3('>','>','='), ASSOC_RIGHT, 2, 0, false},
236 { "<<=", 2, opid3('<','<','='), ASSOC_RIGHT, 2, 0, false},
237 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 2, 0, false},
238 { "^=", 2, opid2('^','='), ASSOC_RIGHT, 2, 0, false},
239 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 2, 0, false},
241 { ":", 0, opid2(':','?'), ASSOC_RIGHT, 1, 0, false},
243 { ",", 2, opid1(','), ASSOC_LEFT, 0, 0, false}
246 static const oper_info fte_operators[] = {
247 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX, false}, /* paren expression - non function call */
249 { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 15, OP_SUFFIX, false},
250 { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 15, OP_SUFFIX, false},
251 { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0, false},
252 { "(", 0, opid1('('), ASSOC_LEFT, 15, 0, false}, /* function call */
253 { "[", 2, opid1('['), ASSOC_LEFT, 15, 0, false}, /* array subscript */
255 { "!", 1, opid2('!','P'), ASSOC_RIGHT, 14, OP_PREFIX, true},
256 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX, false},
257 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX, true},
258 { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 14, OP_PREFIX, false},
259 { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 14, OP_PREFIX, false},
261 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0, true},
262 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0, true},
263 { "&", 2, opid1('&'), ASSOC_LEFT, 13, 0, true},
264 { "|", 2, opid1('|'), ASSOC_LEFT, 13, 0, true},
266 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0, true},
267 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0, true},
269 { "<<", 2, opid2('<','<'), ASSOC_LEFT, 11, 0, true},
270 { ">>", 2, opid2('>','>'), ASSOC_LEFT, 11, 0, true},
272 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0, false},
273 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0, false},
274 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0, false},
275 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0, false},
276 { "==", 2, opid2('=','='), ASSOC_LEFT, 10, 0, true},
277 { "!=", 2, opid2('!','='), ASSOC_LEFT, 10, 0, true},
279 { "?", 3, opid2('?',':'), ASSOC_RIGHT, 9, 0, true},
281 { "=", 2, opid1('='), ASSOC_RIGHT, 8, 0, false},
282 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 8, 0, false},
283 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 8, 0, false},
284 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 8, 0, false},
285 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 8, 0, false},
286 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 8, 0, false},
287 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 8, 0, false},
288 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 8, 0, false},
289 { "&~=", 2, opid3('&','~','='), ASSOC_RIGHT, 8, 0, false},
291 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0, true},
292 { "||", 2, opid2('|','|'), ASSOC_LEFT, 5, 0, true},
294 /* Leave precedence 3 for : with -fcorrect-ternary */
295 { ",", 2, opid1(','), ASSOC_LEFT, 2, 0, false},
296 { ":", 0, opid2(':','?'), ASSOC_RIGHT, 1, 0, false}
299 static const oper_info qcc_operators[] = {
300 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX, false}, /* paren expression - non function call */
302 { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0, false},
303 { "(", 0, opid1('('), ASSOC_LEFT, 15, 0, false}, /* function call */
304 { "[", 2, opid1('['), ASSOC_LEFT, 15, 0, false}, /* array subscript */
306 { "!", 1, opid2('!','P'), ASSOC_RIGHT, 14, OP_PREFIX, true},
307 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX, false},
308 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX, true},
310 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0, true},
311 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0, true},
312 { "&", 2, opid1('&'), ASSOC_LEFT, 13, 0, true},
313 { "|", 2, opid1('|'), ASSOC_LEFT, 13, 0, true},
315 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0, true},
316 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0, true},
318 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0, false},
319 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0, false},
320 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0, false},
321 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0, false},
322 { "==", 2, opid2('=','='), ASSOC_LEFT, 10, 0, true},
323 { "!=", 2, opid2('!','='), ASSOC_LEFT, 10, 0, true},
325 { "=", 2, opid1('='), ASSOC_RIGHT, 8, 0, false},
326 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 8, 0, false},
327 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 8, 0, false},
328 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 8, 0, false},
329 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 8, 0, false},
330 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 8, 0, false},
331 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 8, 0, false},
332 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 8, 0, false},
334 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0, true},
335 { "||", 2, opid2('|','|'), ASSOC_LEFT, 5, 0, true},
337 { ",", 2, opid1(','), ASSOC_LEFT, 2, 0, false},
339 extern const oper_info *operators;
340 extern size_t operator_count;