study1 was sufficient to determine the continuation status, but doing more requires looking at every character. study2 does this for the last interesting statement in the block. Creates: self.stmt_start, stmt_end slice indices of last int
(self)
| 333 | return self.continuation |
| 334 | |
| 335 | def _study2(self): |
| 336 | """ |
| 337 | study1 was sufficient to determine the continuation status, |
| 338 | but doing more requires looking at every character. study2 |
| 339 | does this for the last interesting statement in the block. |
| 340 | Creates: |
| 341 | self.stmt_start, stmt_end |
| 342 | slice indices of last interesting stmt |
| 343 | self.stmt_bracketing |
| 344 | the bracketing structure of the last interesting stmt; for |
| 345 | example, for the statement "say(boo) or die", |
| 346 | stmt_bracketing will be ((0, 0), (0, 1), (2, 0), (2, 1), |
| 347 | (4, 0)). Strings and comments are treated as brackets, for |
| 348 | the matter. |
| 349 | self.lastch |
| 350 | last interesting character before optional trailing comment |
| 351 | self.lastopenbracketpos |
| 352 | if continuation is C_BRACKET, index of last open bracket |
| 353 | """ |
| 354 | if self.study_level >= 2: |
| 355 | return |
| 356 | self._study1() |
| 357 | self.study_level = 2 |
| 358 | |
| 359 | # Set p and q to slice indices of last interesting stmt. |
| 360 | code, goodlines = self.code, self.goodlines |
| 361 | i = len(goodlines) - 1 # Index of newest line. |
| 362 | p = len(code) # End of goodlines[i] |
| 363 | while i: |
| 364 | assert p |
| 365 | # Make p be the index of the stmt at line number goodlines[i]. |
| 366 | # Move p back to the stmt at line number goodlines[i-1]. |
| 367 | q = p |
| 368 | for nothing in range(goodlines[i-1], goodlines[i]): |
| 369 | # tricky: sets p to 0 if no preceding newline |
| 370 | p = code.rfind('\n', 0, p-1) + 1 |
| 371 | # The stmt code[p:q] isn't a continuation, but may be blank |
| 372 | # or a non-indenting comment line. |
| 373 | if _junkre(code, p): |
| 374 | i = i-1 |
| 375 | else: |
| 376 | break |
| 377 | if i == 0: |
| 378 | # nothing but junk! |
| 379 | assert p == 0 |
| 380 | q = p |
| 381 | self.stmt_start, self.stmt_end = p, q |
| 382 | |
| 383 | # Analyze this stmt, to find the last open bracket (if any) |
| 384 | # and last interesting character (if any). |
| 385 | lastch = "" |
| 386 | stack = [] # stack of open bracket indices |
| 387 | push_stack = stack.append |
| 388 | bracketing = [(p, 0)] |
| 389 | while p < q: |
| 390 | # suck up all except ()[]{}'"#\\ |
| 391 | m = _chew_ordinaryre(code, p, q) |
| 392 | if m: |
no test coverage detected