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comparison lwcc/cpp/file.c @ 294:048adfee2933 ccdev
Checkpoint on lwcc-cpp development
This checkpoint includes a tokenizer and basic implementation of #if,
#ifdef, #ifndef, #else, #endif, #elif, and #undef along with basic symbol
table management.
| author | William Astle <lost@l-w.ca> |
|---|---|
| date | Tue, 10 Sep 2013 19:56:05 -0600 |
| parents | c419b3b3d43f |
| children |
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| 293:c419b3b3d43f | 294:048adfee2933 |
|---|---|
| 266 file_stack -> unget = c2; | 266 file_stack -> unget = c2; |
| 267 } | 267 } |
| 268 file_stack -> curc = c; | 268 file_stack -> curc = c; |
| 269 return c; | 269 return c; |
| 270 } | 270 } |
| 271 | |
| 272 void skip_eol(void) | |
| 273 { | |
| 274 int c; | |
| 275 for (;;) | |
| 276 { | |
| 277 c = fetch_byte(); | |
| 278 if (c == CPP_EOF || c == CPP_EOL) | |
| 279 { | |
| 280 unfetch_byte(c); | |
| 281 return; | |
| 282 } | |
| 283 if (c == '/') | |
| 284 { | |
| 285 c = munch_comment(); | |
| 286 if (c > 0) | |
| 287 { | |
| 288 while (c--) | |
| 289 outchr(CPP_EOL); | |
| 290 } | |
| 291 } | |
| 292 } | |
| 293 } | |
| 294 | |
| 271 | 295 |
| 272 /* This function opens (if not stdin) the file f and pushes it onto the | 296 /* This function opens (if not stdin) the file f and pushes it onto the |
| 273 top of the input file stack. It then proceeds to process the file | 297 top of the input file stack. It then proceeds to process the file |
| 274 and return. Nonzero return means the file could not be opened. */ | 298 and return. Nonzero return means the file could not be opened. */ |
| 275 int process_file(const char *f) | 299 int process_file(const char *f) |