| 299 | return self.execute(list_value(streams)) |
| 300 | |
| 301 | def execute(self, streams: Sequence[object]) -> None: |
| 302 | # 重载返回指令流 |
| 303 | ops = "" |
| 304 | try: |
| 305 | parser = PDFContentParser(streams) |
| 306 | except PSEOF: |
| 307 | # empty page |
| 308 | return |
| 309 | while True: |
| 310 | try: |
| 311 | (_, obj) = parser.nextobject() |
| 312 | except PSEOF: |
| 313 | break |
| 314 | if isinstance(obj, PSKeyword): |
| 315 | name = keyword_name(obj) |
| 316 | method = "do_%s" % name.replace("*", "_a").replace('"', "_w").replace( |
| 317 | "'", |
| 318 | "_q", |
| 319 | ) |
| 320 | if hasattr(self, method): |
| 321 | func = getattr(self, method) |
| 322 | nargs = func.__code__.co_argcount - 1 |
| 323 | if nargs: |
| 324 | args = self.pop(nargs) |
| 325 | # log.debug("exec: %s %r", name, args) |
| 326 | if len(args) == nargs: |
| 327 | func(*args) |
| 328 | if not ( |
| 329 | name[0] == "T" |
| 330 | or name in ['"', "'", "EI", "MP", "DP", "BMC", "BDC"] |
| 331 | ): # 过滤 T 系列文字指令，因为 EI 的参数是 obj 所以也需要过滤（只在少数文档中画横线时使用），过滤 marked 系列指令 |
| 332 | p = " ".join( |
| 333 | [ |
| 334 | ( |
| 335 | f"{x:f}" |
| 336 | if isinstance(x, float) |
| 337 | else str(x).replace("'", "") |
| 338 | ) |
| 339 | for x in args |
| 340 | ] |
| 341 | ) |
| 342 | ops += f"{p} {name} " |
| 343 | else: |
| 344 | # log.debug("exec: %s", name) |
| 345 | targs = func() |
| 346 | if targs is None: |
| 347 | targs = [] |
| 348 | if not (name[0] == "T" or name in ["BI", "ID", "EMC"]): |
| 349 | p = " ".join( |
| 350 | [ |
| 351 | ( |
| 352 | f"{x:f}" |
| 353 | if isinstance(x, float) |
| 354 | else str(x).replace("'", "") |
| 355 | ) |
| 356 | for x in targs |
| 357 | ] |
| 358 | ) |