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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 */
80 TOKEN_STRINGCONST, /* not the typename but an actual "string" */
91 /* We use '< TOKEN_ERROR', so TOKEN_FATAL must come after it and any
92 * other error related tokens as well
95 TOKEN_FATAL /* internal error, eg out of memory */
103 typedef struct lex_file_s {
105 const char *open_string;
106 size_t open_string_length;
107 size_t open_string_pos;
111 size_t sline; /* line at the start of a token */
118 token tok; /* not a pointer anymore */
122 bool nodigraphs; /* used when lexing string constants */
123 bool preprocessing; /* whitespace and EOLs become actual tokens */
124 bool mergelines; /* backslash at the end of a line escapes the newline */
134 lex_file* lex_open (const char *file);
135 lex_file* lex_open_string(const char *str, size_t len, const char *name);
136 void lex_close(lex_file *lex);
137 int lex_do (lex_file *lex);
138 void lex_cleanup(void);
154 unsigned int operands;
162 #define opid2(a,b) ((a<<8)|b)
163 #define opid3(a,b,c) ((a<<16)|(b<<8)|c)
165 static const oper_info c_operators[] = {
166 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
168 { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 15, OP_SUFFIX},
169 { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 15, OP_SUFFIX},
170 { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0 },
171 { "(", 0, opid1('('), ASSOC_LEFT, 15, 0 }, /* function call */
172 { "[", 2, opid1('['), ASSOC_LEFT, 15, 0 }, /* array subscript */
174 { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
175 { "~", 1, opid2('~', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
176 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
177 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
178 { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
179 { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
180 /* { "&", 1, opid2('&','P'), ASSOC_RIGHT, 14, OP_PREFIX }, */
182 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
183 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
184 { "%", 2, opid1('%'), ASSOC_LEFT, 13, 0 },
186 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
187 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
189 { "<<", 2, opid2('<','<'), ASSOC_LEFT, 11, 0 },
190 { ">>", 2, opid2('>','>'), ASSOC_LEFT, 11, 0 },
192 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
193 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
194 { "<=>", 2, opid3('<','=','>'), ASSOC_LEFT, 10, 0 },
195 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
196 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
198 { "==", 2, opid2('=','='), ASSOC_LEFT, 9, 0 },
199 { "!=", 2, opid2('!','='), ASSOC_LEFT, 9, 0 },
201 { "&", 2, opid1('&'), ASSOC_LEFT, 8, 0 },
203 { "^", 2, opid1('^'), ASSOC_LEFT, 7, 0 },
205 { "|", 2, opid1('|'), ASSOC_LEFT, 6, 0 },
207 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
209 { "||", 2, opid2('|','|'), ASSOC_LEFT, 4, 0 },
211 { "?", 3, opid2('?',':'), ASSOC_RIGHT, 3, 0 },
213 { "=", 2, opid1('='), ASSOC_RIGHT, 2, 0 },
214 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 2, 0 },
215 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 2, 0 },
216 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 2, 0 },
217 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 2, 0 },
218 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 2, 0 },
219 { ">>=", 2, opid3('>','>','='), ASSOC_RIGHT, 2, 0 },
220 { "<<=", 2, opid3('<','<','='), ASSOC_RIGHT, 2, 0 },
221 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 2, 0 },
222 { "^=", 2, opid2('^','='), ASSOC_RIGHT, 2, 0 },
223 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 2, 0 },
224 { "&~=", 2, opid3('&','~','='), ASSOC_RIGHT, 2, 0 },
226 { ":", 0, opid2(':','?'), ASSOC_RIGHT, 1, 0 },
228 { ",", 2, opid1(','), ASSOC_LEFT, 0, 0 }
230 static const size_t c_operator_count = (sizeof(c_operators) / sizeof(c_operators[0]));
232 static const oper_info fte_operators[] = {
233 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
235 { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 15, OP_SUFFIX},
236 { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 15, OP_SUFFIX},
237 { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0 },
238 { "(", 0, opid1('('), ASSOC_LEFT, 15, 0 }, /* function call */
239 { "[", 2, opid1('['), ASSOC_LEFT, 15, 0 }, /* array subscript */
241 { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
242 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
243 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
244 { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
245 { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
247 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
248 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
249 { "&", 2, opid1('&'), ASSOC_LEFT, 13, 0 },
250 { "|", 2, opid1('|'), ASSOC_LEFT, 13, 0 },
252 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
253 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
255 { "<<", 2, opid2('<','<'), ASSOC_LEFT, 11, 0 },
256 { ">>", 2, opid2('>','>'), ASSOC_LEFT, 11, 0 },
258 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
259 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
260 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
261 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
262 { "==", 2, opid2('=','='), ASSOC_LEFT, 10, 0 },
263 { "!=", 2, opid2('!','='), ASSOC_LEFT, 10, 0 },
265 { "?", 3, opid2('?',':'), ASSOC_RIGHT, 9, 0 },
267 { "=", 2, opid1('='), ASSOC_RIGHT, 8, 0 },
268 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 8, 0 },
269 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 8, 0 },
270 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 8, 0 },
271 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 8, 0 },
272 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 8, 0 },
273 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 8, 0 },
274 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 8, 0 },
275 { "&~=", 2, opid3('&','~','='), ASSOC_RIGHT, 8, 0 },
277 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
278 { "||", 2, opid2('|','|'), ASSOC_LEFT, 5, 0 },
280 /* Leave precedence 3 for : with -fcorrect-ternary */
281 { ",", 2, opid1(','), ASSOC_LEFT, 2, 0 },
282 { ":", 0, opid2(':','?'), ASSOC_RIGHT, 1, 0 }
284 static const size_t fte_operator_count = (sizeof(fte_operators) / sizeof(fte_operators[0]));
286 static const oper_info qcc_operators[] = {
287 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
289 { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0 },
290 { "(", 0, opid1('('), ASSOC_LEFT, 15, 0 }, /* function call */
291 { "[", 2, opid1('['), ASSOC_LEFT, 15, 0 }, /* array subscript */
293 { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
294 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
295 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
297 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
298 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
299 { "&", 2, opid1('&'), ASSOC_LEFT, 13, 0 },
300 { "|", 2, opid1('|'), ASSOC_LEFT, 13, 0 },
302 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
303 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
305 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
306 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
307 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
308 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
309 { "==", 2, opid2('=','='), ASSOC_LEFT, 10, 0 },
310 { "!=", 2, opid2('!','='), ASSOC_LEFT, 10, 0 },
312 { "=", 2, opid1('='), ASSOC_RIGHT, 8, 0 },
313 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 8, 0 },
314 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 8, 0 },
315 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 8, 0 },
316 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 8, 0 },
317 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 8, 0 },
318 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 8, 0 },
319 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 8, 0 },
321 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
322 { "||", 2, opid2('|','|'), ASSOC_LEFT, 5, 0 },
324 { ",", 2, opid1(','), ASSOC_LEFT, 2, 0 },
326 static const size_t qcc_operator_count = (sizeof(qcc_operators) / sizeof(qcc_operators[0]));
328 extern const oper_info *operators;
329 extern size_t operator_count;
330 void lexerror(lex_file*, const char *fmt, ...);