1 | |
---|
2 | #ifdef WIN32 |
---|
3 | #include <direct.h> |
---|
4 | #define popen _popen |
---|
5 | #define pclose _pclose |
---|
6 | #endif |
---|
7 | |
---|
8 | #include "cmt_awk.h" |
---|
9 | #include "cmt_system.h" |
---|
10 | |
---|
11 | class Parser |
---|
12 | { |
---|
13 | public: |
---|
14 | Parser (Awk* awk, const cmt_string pattern, const cmt_regexp* expression) : |
---|
15 | m_awk(awk), m_pattern (pattern), m_expression (expression) |
---|
16 | { |
---|
17 | } |
---|
18 | |
---|
19 | Awk::condition parse (const cmt_string& text) |
---|
20 | { |
---|
21 | Awk::condition result = Awk::ok; |
---|
22 | |
---|
23 | cmt_string line; |
---|
24 | int pos; |
---|
25 | int max_pos; |
---|
26 | |
---|
27 | pos = 0; |
---|
28 | max_pos = text.size (); |
---|
29 | |
---|
30 | m_accumulator.erase (0); |
---|
31 | |
---|
32 | for (pos = 0; pos < max_pos;) |
---|
33 | { |
---|
34 | int cr = text.find (pos, "\r\n"); |
---|
35 | int nl = text.find (pos, '\n'); |
---|
36 | int first = nl; |
---|
37 | int length = 1; |
---|
38 | |
---|
39 | if (cr != cmt_string::npos) |
---|
40 | { |
---|
41 | if (nl == cmt_string::npos) |
---|
42 | { |
---|
43 | first = cr; |
---|
44 | length = 2; |
---|
45 | } |
---|
46 | else |
---|
47 | { |
---|
48 | first = (nl < cr) ? nl : cr; |
---|
49 | length = (nl < cr) ? 1 : 2; |
---|
50 | } |
---|
51 | } |
---|
52 | |
---|
53 | if (first == cmt_string::npos) |
---|
54 | { |
---|
55 | text.substr (pos, line); |
---|
56 | pos = max_pos; |
---|
57 | } |
---|
58 | else if (first > pos) |
---|
59 | { |
---|
60 | text.substr (pos, first - pos, line); |
---|
61 | pos = first + length; |
---|
62 | } |
---|
63 | else |
---|
64 | { |
---|
65 | line.erase (0); |
---|
66 | pos += length; |
---|
67 | } |
---|
68 | |
---|
69 | //cout << "parse> line=[" << line << "]" << endl; |
---|
70 | |
---|
71 | result = parse_line (line); |
---|
72 | if (result != Awk::ok) break; |
---|
73 | } |
---|
74 | |
---|
75 | return (result); |
---|
76 | } |
---|
77 | |
---|
78 | Awk::condition parse_line (const cmt_string& line) |
---|
79 | { |
---|
80 | Awk::condition result = Awk::ok; |
---|
81 | int length; |
---|
82 | int nl; |
---|
83 | int back_slash; |
---|
84 | cmt_string temp_line = line; |
---|
85 | |
---|
86 | if (temp_line.size () == 0) return (result); |
---|
87 | |
---|
88 | nl = temp_line.find_last_of ('\n'); |
---|
89 | if (nl != cmt_string::npos) temp_line.erase (nl); |
---|
90 | |
---|
91 | length = temp_line.size (); |
---|
92 | if (length == 0) return (result); |
---|
93 | |
---|
94 | // |
---|
95 | // We scan the line for handling backslashes. |
---|
96 | // |
---|
97 | // o Really terminating backslashes (ie those only followed by spaces/tabs |
---|
98 | // mean continued line |
---|
99 | // |
---|
100 | // |
---|
101 | |
---|
102 | bool finished = true; |
---|
103 | |
---|
104 | length = temp_line.size (); |
---|
105 | |
---|
106 | back_slash = temp_line.find_last_of ('\\'); |
---|
107 | |
---|
108 | if (back_slash != cmt_string::npos) |
---|
109 | { |
---|
110 | // |
---|
111 | // This is the last backslash |
---|
112 | // check if there are only space chars after it |
---|
113 | // |
---|
114 | |
---|
115 | bool at_end = true; |
---|
116 | |
---|
117 | for (int i = (back_slash + 1); i < length; i++) |
---|
118 | { |
---|
119 | char c = temp_line[i]; |
---|
120 | if ((c != ' ') && (c != '\t')) |
---|
121 | { |
---|
122 | at_end = false; |
---|
123 | break; |
---|
124 | } |
---|
125 | } |
---|
126 | |
---|
127 | if (at_end) |
---|
128 | { |
---|
129 | temp_line.erase (back_slash); |
---|
130 | finished = false; |
---|
131 | } |
---|
132 | else |
---|
133 | { |
---|
134 | // This was not a trailing backslash. |
---|
135 | finished = true; |
---|
136 | } |
---|
137 | } |
---|
138 | |
---|
139 | m_accumulator += temp_line; |
---|
140 | |
---|
141 | //cout << "parse_line1> accumulator=[" << m_accumulator << "]" << endl; |
---|
142 | //cout << "parse_line1> finished=[" << finished << "]" << endl; |
---|
143 | |
---|
144 | if (!finished) |
---|
145 | { |
---|
146 | // We still need to accumulate forthcoming lines |
---|
147 | // before parsing the resulting text. |
---|
148 | return (result); |
---|
149 | } |
---|
150 | |
---|
151 | // now filter the accumulated line |
---|
152 | |
---|
153 | if (m_accumulator != "") |
---|
154 | { |
---|
155 | bool ok = false; |
---|
156 | |
---|
157 | if (m_expression != 0) |
---|
158 | { |
---|
159 | if (m_expression->match (m_accumulator)) |
---|
160 | { |
---|
161 | ok = true; |
---|
162 | } |
---|
163 | } |
---|
164 | else |
---|
165 | { |
---|
166 | if ((m_pattern == "") || |
---|
167 | (m_accumulator.find (m_pattern) != cmt_string::npos)) |
---|
168 | { |
---|
169 | ok = true; |
---|
170 | } |
---|
171 | } |
---|
172 | |
---|
173 | if (ok && (m_awk != 0)) |
---|
174 | { |
---|
175 | //cout << "parse_line> accumulator=[" << m_accumulator << "]" << endl; |
---|
176 | |
---|
177 | m_awk->filter (m_accumulator); |
---|
178 | result = m_awk->get_last_condition (); |
---|
179 | } |
---|
180 | } |
---|
181 | |
---|
182 | m_accumulator.erase (0); |
---|
183 | |
---|
184 | return (result); |
---|
185 | } |
---|
186 | |
---|
187 | private: |
---|
188 | |
---|
189 | cmt_string m_accumulator; |
---|
190 | cmt_string m_pattern; |
---|
191 | const cmt_regexp* m_expression; |
---|
192 | Awk* m_awk; |
---|
193 | }; |
---|
194 | |
---|
195 | //------------------------------------------------ |
---|
196 | Awk::Awk () |
---|
197 | { |
---|
198 | m_condition = ok; |
---|
199 | } |
---|
200 | |
---|
201 | //------------------------------------------------ |
---|
202 | Awk::~Awk () |
---|
203 | { |
---|
204 | } |
---|
205 | |
---|
206 | //------------------------------------------------ |
---|
207 | Awk::condition Awk::run (const cmt_string& text, |
---|
208 | const cmt_string& pattern) |
---|
209 | { |
---|
210 | m_line_number = 0; |
---|
211 | m_condition = ok; |
---|
212 | |
---|
213 | begin (); |
---|
214 | if (m_condition != ok) return (m_condition); |
---|
215 | |
---|
216 | if (CmtSystem::testenv ("CMTTESTAWK")) |
---|
217 | { |
---|
218 | Parser p (this, pattern, 0); |
---|
219 | |
---|
220 | m_condition = p.parse (text); |
---|
221 | if (m_condition != ok) return (m_condition); |
---|
222 | } |
---|
223 | else |
---|
224 | { |
---|
225 | cmt_string line; |
---|
226 | int pos = 0; |
---|
227 | int max_pos; |
---|
228 | |
---|
229 | max_pos = text.size (); |
---|
230 | |
---|
231 | for (pos = 0; pos < max_pos;) |
---|
232 | { |
---|
233 | int cr = text.find (pos, "\r\n"); |
---|
234 | int nl = text.find (pos, '\n'); |
---|
235 | |
---|
236 | // Get the first end-of-line (either lf or cr-lf) |
---|
237 | |
---|
238 | int first = nl; |
---|
239 | |
---|
240 | if (cr != cmt_string::npos) |
---|
241 | { |
---|
242 | if (nl == cmt_string::npos) |
---|
243 | { |
---|
244 | first = cr; |
---|
245 | } |
---|
246 | else |
---|
247 | { |
---|
248 | first = (nl < cr) ? nl : cr; |
---|
249 | } |
---|
250 | } |
---|
251 | |
---|
252 | if (first == cmt_string::npos) |
---|
253 | { |
---|
254 | // This is likely the last line since there is no end-of-line |
---|
255 | text.substr (pos, line); |
---|
256 | pos = max_pos; |
---|
257 | } |
---|
258 | else if (first > pos) |
---|
259 | { |
---|
260 | // The eol was found beyond the current position |
---|
261 | // (ie. this is a non empty line) |
---|
262 | text.substr (pos, first - pos, line); |
---|
263 | pos = first + 1; |
---|
264 | } |
---|
265 | else |
---|
266 | { |
---|
267 | // an empty line |
---|
268 | line = ""; |
---|
269 | pos++; |
---|
270 | } |
---|
271 | |
---|
272 | m_line_number++; |
---|
273 | |
---|
274 | if (line != "") |
---|
275 | { |
---|
276 | if ((pattern == "") || |
---|
277 | (line.find (pattern) != cmt_string::npos)) |
---|
278 | { |
---|
279 | filter (line); |
---|
280 | if (m_condition != ok) return (m_condition); |
---|
281 | } |
---|
282 | } |
---|
283 | } |
---|
284 | } |
---|
285 | |
---|
286 | end (); |
---|
287 | |
---|
288 | return (m_condition); |
---|
289 | } |
---|
290 | |
---|
291 | //------------------------------------------------ |
---|
292 | Awk::condition Awk::run (const cmt_string& text, |
---|
293 | const cmt_regexp& expression) |
---|
294 | { |
---|
295 | m_line_number = 0; |
---|
296 | m_condition = ok; |
---|
297 | |
---|
298 | begin (); |
---|
299 | if (m_condition != ok) return (m_condition); |
---|
300 | |
---|
301 | if (CmtSystem::testenv ("CMTTESTAWK")) |
---|
302 | { |
---|
303 | Parser p (this, "", &expression); |
---|
304 | |
---|
305 | m_condition = p.parse (text); |
---|
306 | if (m_condition != ok) return (m_condition); |
---|
307 | } |
---|
308 | else |
---|
309 | { |
---|
310 | cmt_string line; |
---|
311 | int pos = 0; |
---|
312 | int max_pos; |
---|
313 | |
---|
314 | max_pos = text.size (); |
---|
315 | |
---|
316 | for (pos = 0; pos < max_pos;) |
---|
317 | { |
---|
318 | int cr = text.find (pos, "\r\n"); |
---|
319 | int nl = text.find (pos, '\n'); |
---|
320 | |
---|
321 | // Get the first end-of-line (either lf or cr-lf) |
---|
322 | |
---|
323 | int first = nl; |
---|
324 | |
---|
325 | if (cr != cmt_string::npos) |
---|
326 | { |
---|
327 | if (nl == cmt_string::npos) |
---|
328 | { |
---|
329 | first = cr; |
---|
330 | } |
---|
331 | else |
---|
332 | { |
---|
333 | first = (nl < cr) ? nl : cr; |
---|
334 | } |
---|
335 | } |
---|
336 | |
---|
337 | if (first == cmt_string::npos) |
---|
338 | { |
---|
339 | // This is likely the last line since there is no end-of-line |
---|
340 | text.substr (pos, line); |
---|
341 | pos = max_pos; |
---|
342 | } |
---|
343 | else if (first > pos) |
---|
344 | { |
---|
345 | // The eol was found beyond the current position |
---|
346 | // (ie. this is a non empty line) |
---|
347 | text.substr (pos, first - pos, line); |
---|
348 | pos = first + 1; |
---|
349 | } |
---|
350 | else |
---|
351 | { |
---|
352 | // an empty line |
---|
353 | line = ""; |
---|
354 | pos++; |
---|
355 | } |
---|
356 | |
---|
357 | m_line_number++; |
---|
358 | |
---|
359 | if (line != "") |
---|
360 | { |
---|
361 | if (expression.match (line)) |
---|
362 | { |
---|
363 | filter (line); |
---|
364 | if (m_condition != ok) return (m_condition); |
---|
365 | } |
---|
366 | } |
---|
367 | } |
---|
368 | } |
---|
369 | |
---|
370 | end (); |
---|
371 | |
---|
372 | return (m_condition); |
---|
373 | } |
---|
374 | |
---|
375 | //------------------------------------------------ |
---|
376 | void Awk::stop () |
---|
377 | { |
---|
378 | m_condition = stopped; |
---|
379 | } |
---|
380 | |
---|
381 | //------------------------------------------------ |
---|
382 | void Awk::abort () |
---|
383 | { |
---|
384 | m_condition = failed; |
---|
385 | } |
---|
386 | |
---|
387 | //------------------------------------------------ |
---|
388 | void Awk::allow_continuation () |
---|
389 | { |
---|
390 | m_continuation_allowed = true; |
---|
391 | } |
---|
392 | |
---|
393 | //------------------------------------------------ |
---|
394 | Awk::condition Awk::get_last_condition () const |
---|
395 | { |
---|
396 | return (m_condition); |
---|
397 | } |
---|
398 | |
---|
399 | //------------------------------------------------ |
---|
400 | void Awk::begin () |
---|
401 | { |
---|
402 | } |
---|
403 | |
---|
404 | //------------------------------------------------ |
---|
405 | void Awk::filter (const cmt_string& line) |
---|
406 | { |
---|
407 | //cout << "awk> " << line << endl; |
---|
408 | } |
---|
409 | |
---|
410 | //------------------------------------------------ |
---|
411 | void Awk::end () |
---|
412 | { |
---|
413 | } |
---|
414 | |
---|
415 | //------------------------------------------------ |
---|
416 | Awk::condition FAwk::run (const cmt_string& file_name, |
---|
417 | const cmt_string& pattern) |
---|
418 | { |
---|
419 | if (!CmtSystem::test_file (file_name)) return (failed); |
---|
420 | |
---|
421 | CmtSystem::basename (file_name, m_file_name); |
---|
422 | CmtSystem::dirname (file_name, m_dir_name); |
---|
423 | |
---|
424 | cmt_string text; |
---|
425 | |
---|
426 | text.read (file_name); |
---|
427 | |
---|
428 | return (Awk::run (text, pattern)); |
---|
429 | } |
---|
430 | |
---|
431 | //------------------------------------------------ |
---|
432 | Awk::condition FAwk::run (const cmt_string& file_name, |
---|
433 | const cmt_regexp& expression) |
---|
434 | { |
---|
435 | if (!CmtSystem::test_file (file_name)) return (failed); |
---|
436 | |
---|
437 | CmtSystem::basename (file_name, m_file_name); |
---|
438 | CmtSystem::dirname (file_name, m_dir_name); |
---|
439 | |
---|
440 | cmt_string text; |
---|
441 | |
---|
442 | text.read (file_name); |
---|
443 | |
---|
444 | return (Awk::run (text, expression)); |
---|
445 | } |
---|
446 | |
---|
447 | //------------------------------------------------ |
---|
448 | Awk::condition PAwk::run (const cmt_string& command, |
---|
449 | const cmt_string& pattern) |
---|
450 | { |
---|
451 | cmt_string line; |
---|
452 | |
---|
453 | m_line_number = 0; |
---|
454 | m_condition = ok; |
---|
455 | |
---|
456 | begin (); |
---|
457 | if (m_condition != ok) return (m_condition); |
---|
458 | |
---|
459 | FILE* f = popen (command.c_str (), "r"); |
---|
460 | |
---|
461 | if (f == 0) return (failed); |
---|
462 | |
---|
463 | char buffer[8192]; |
---|
464 | char* ptr; |
---|
465 | |
---|
466 | while ((ptr = fgets (buffer, sizeof (buffer), f)) != NULL) |
---|
467 | { |
---|
468 | line = ptr; |
---|
469 | |
---|
470 | if (line.find ("\n") == cmt_string::npos) |
---|
471 | { |
---|
472 | cerr << "#CMT> Warning : Line too long and truncated in PAwk::run for command " << command << endl; |
---|
473 | } |
---|
474 | |
---|
475 | line.replace ("\n", ""); |
---|
476 | |
---|
477 | m_line_number++; |
---|
478 | |
---|
479 | if (line != "") |
---|
480 | { |
---|
481 | if ((pattern == "") || |
---|
482 | (line.find (pattern) != cmt_string::npos)) |
---|
483 | { |
---|
484 | filter (line); |
---|
485 | if (m_condition != ok) return (m_condition); |
---|
486 | } |
---|
487 | } |
---|
488 | } |
---|
489 | |
---|
490 | pclose (f); |
---|
491 | |
---|
492 | end (); |
---|
493 | |
---|
494 | return (m_condition); |
---|
495 | } |
---|
496 | |
---|
497 | //------------------------------------------------ |
---|
498 | Awk::condition PAwk::run (const cmt_string& command, |
---|
499 | const cmt_regexp& expression) |
---|
500 | { |
---|
501 | cmt_string line; |
---|
502 | |
---|
503 | m_line_number = 0; |
---|
504 | m_condition = ok; |
---|
505 | |
---|
506 | begin (); |
---|
507 | if (m_condition != ok) return (m_condition); |
---|
508 | |
---|
509 | FILE* f = popen (command.c_str (), "r"); |
---|
510 | |
---|
511 | if (f == 0) return (failed); |
---|
512 | |
---|
513 | char buffer[256]; |
---|
514 | char* ptr; |
---|
515 | |
---|
516 | while ((ptr = fgets (buffer, sizeof (buffer), f)) != NULL) |
---|
517 | { |
---|
518 | line = ptr; |
---|
519 | |
---|
520 | line.replace ("\n", ""); |
---|
521 | |
---|
522 | m_line_number++; |
---|
523 | |
---|
524 | if (line != "") |
---|
525 | { |
---|
526 | if (expression.match (line)) |
---|
527 | { |
---|
528 | filter (line); |
---|
529 | if (m_condition != ok) return (m_condition); |
---|
530 | } |
---|
531 | } |
---|
532 | } |
---|
533 | |
---|
534 | pclose (f); |
---|
535 | |
---|
536 | end (); |
---|
537 | |
---|
538 | return (m_condition); |
---|
539 | } |
---|
540 | |
---|