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23 #ifndef GMQCC_LEXER_HDR
24 #define GMQCC_LEXER_HDR
26 typedef struct token_s token;
52 void token_delete(token*);
53 token* token_copy(const token *cp);
54 void token_delete_all(token *t);
55 token* token_copy_all(const token *cp);
62 /* Other tokens which we can return: */
72 TOKEN_KEYWORD, /* loop */
74 TOKEN_DOTS, /* 3 dots, ... */
76 TOKEN_STRINGCONST, /* not the typename but an actual "string" */
87 /* We use '< TOKEN_ERROR', so TOKEN_FATAL must come after it and any
88 * other error related tokens as well
91 TOKEN_FATAL /* internal error, eg out of memory */
101 const char *open_string;
102 size_t open_string_length;
103 size_t open_string_pos;
107 size_t sline; /* line at the start of a token */
114 token tok; /* not a pointer anymore */
118 bool nodigraphs; /* used when lexing string constants */
119 bool preprocessing; /* whitespace and EOLs become actual tokens */
120 bool mergelines; /* backslash at the end of a line escapes the newline */
130 lex_file* lex_open (const char *file);
131 lex_file* lex_open_string(const char *str, size_t len, const char *name);
132 void lex_close(lex_file *lex);
133 int lex_do (lex_file *lex);
134 void lex_cleanup(void);
150 unsigned int operands;
158 #define opid2(a,b) ((a<<8)|b)
159 #define opid3(a,b,c) ((a<<16)|(b<<8)|c)
161 static const oper_info c_operators[] = {
162 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
164 { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 15, OP_SUFFIX},
165 { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 15, OP_SUFFIX},
166 { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0 },
167 { "(", 0, opid1('('), ASSOC_LEFT, 15, 0 }, /* function call */
168 { "[", 2, opid1('['), ASSOC_LEFT, 15, 0 }, /* array subscript */
170 { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
171 { "~", 1, opid2('~', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
172 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
173 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
174 { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
175 { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
176 /* { "&", 1, opid2('&','P'), ASSOC_RIGHT, 14, OP_PREFIX }, */
178 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
179 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
180 { "%", 2, opid1('%'), ASSOC_LEFT, 13, 0 },
182 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
183 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
185 { "<<", 2, opid2('<','<'), ASSOC_LEFT, 11, 0 },
186 { ">>", 2, opid2('>','>'), ASSOC_LEFT, 11, 0 },
188 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
189 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
190 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
191 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
193 { "==", 2, opid2('=','='), ASSOC_LEFT, 9, 0 },
194 { "!=", 2, opid2('!','='), ASSOC_LEFT, 9, 0 },
196 { "&", 2, opid1('&'), ASSOC_LEFT, 8, 0 },
198 { "^", 2, opid1('^'), ASSOC_LEFT, 7, 0 },
200 { "|", 2, opid1('|'), ASSOC_LEFT, 6, 0 },
202 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
204 { "||", 2, opid2('|','|'), ASSOC_LEFT, 4, 0 },
206 { "?", 3, opid2('?',':'), ASSOC_RIGHT, 3, 0 },
207 { ":", 3, opid2(':','?'), ASSOC_RIGHT, 3, 0 },
209 { "=", 2, opid1('='), ASSOC_RIGHT, 2, 0 },
210 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 2, 0 },
211 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 2, 0 },
212 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 2, 0 },
213 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 2, 0 },
214 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 2, 0 },
215 { ">>=", 2, opid3('>','>','='), ASSOC_RIGHT, 2, 0 },
216 { "<<=", 2, opid3('<','<','='), ASSOC_RIGHT, 2, 0 },
217 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 2, 0 },
218 { "^=", 2, opid2('^','='), ASSOC_RIGHT, 2, 0 },
219 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 2, 0 },
221 { ",", 2, opid1(','), ASSOC_LEFT, 1, 0 }
223 static const size_t c_operator_count = (sizeof(c_operators) / sizeof(c_operators[0]));
225 static const oper_info fte_operators[] = {
226 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
228 { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 15, OP_SUFFIX},
229 { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 15, OP_SUFFIX},
230 { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0 },
231 { "(", 0, opid1('('), ASSOC_LEFT, 15, 0 }, /* function call */
232 { "[", 2, opid1('['), ASSOC_LEFT, 15, 0 }, /* array subscript */
234 { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
235 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
236 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
237 { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
238 { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
240 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
241 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
242 { "&", 2, opid1('&'), ASSOC_LEFT, 13, 0 },
243 { "|", 2, opid1('|'), ASSOC_LEFT, 13, 0 },
245 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
246 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
248 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
249 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
250 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
251 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
252 { "==", 2, opid2('=','='), ASSOC_LEFT, 10, 0 },
253 { "!=", 2, opid2('!','='), ASSOC_LEFT, 10, 0 },
255 { "?", 3, opid2('?',':'), ASSOC_RIGHT, 9, 0 },
256 { ":", 3, opid2(':','?'), ASSOC_RIGHT, 9, 0 },
258 { "=", 2, opid1('='), ASSOC_RIGHT, 8, 0 },
259 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 8, 0 },
260 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 8, 0 },
261 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 8, 0 },
262 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 8, 0 },
263 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 8, 0 },
264 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 8, 0 },
265 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 8, 0 },
266 { "&~=", 2, opid3('&','~','='), ASSOC_RIGHT, 8, 0 },
268 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
269 { "||", 2, opid2('|','|'), ASSOC_LEFT, 5, 0 },
271 { ",", 2, opid1(','), ASSOC_LEFT, 2, 0 }
273 static const size_t fte_operator_count = (sizeof(fte_operators) / sizeof(fte_operators[0]));
275 static const oper_info qcc_operators[] = {
276 { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
278 { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0 },
279 { "(", 0, opid1('('), ASSOC_LEFT, 15, 0 }, /* function call */
280 { "[", 2, opid1('['), ASSOC_LEFT, 15, 0 }, /* array subscript */
282 { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
283 { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
284 { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
286 { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
287 { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
288 { "&", 2, opid1('&'), ASSOC_LEFT, 13, 0 },
289 { "|", 2, opid1('|'), ASSOC_LEFT, 13, 0 },
291 { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
292 { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
294 { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
295 { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
296 { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
297 { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
298 { "==", 2, opid2('=','='), ASSOC_LEFT, 10, 0 },
299 { "!=", 2, opid2('!','='), ASSOC_LEFT, 10, 0 },
301 { "=", 2, opid1('='), ASSOC_RIGHT, 8, 0 },
302 { "+=", 2, opid2('+','='), ASSOC_RIGHT, 8, 0 },
303 { "-=", 2, opid2('-','='), ASSOC_RIGHT, 8, 0 },
304 { "*=", 2, opid2('*','='), ASSOC_RIGHT, 8, 0 },
305 { "/=", 2, opid2('/','='), ASSOC_RIGHT, 8, 0 },
306 { "%=", 2, opid2('%','='), ASSOC_RIGHT, 8, 0 },
307 { "&=", 2, opid2('&','='), ASSOC_RIGHT, 8, 0 },
308 { "|=", 2, opid2('|','='), ASSOC_RIGHT, 8, 0 },
310 { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
311 { "||", 2, opid2('|','|'), ASSOC_LEFT, 5, 0 },
313 { ",", 2, opid1(','), ASSOC_LEFT, 2, 0 },
315 { "?", 3, opid2('?',':'), ASSOC_RIGHT, 1, 0 },
316 { ":", 3, opid2(':','?'), ASSOC_RIGHT, 1, 0 }
318 static const size_t qcc_operator_count = (sizeof(qcc_operators) / sizeof(qcc_operators[0]));
320 extern const oper_info *operators;
321 extern size_t operator_count;
322 void lexerror(lex_file*, const char *fmt, ...);