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Refactor StringMobject and relevant classes
This commit is contained in:
parent
28e4240475
commit
7ffc7b33f7
3 changed files with 227 additions and 205 deletions
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@ -1,6 +1,6 @@
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from __future__ import annotations
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import itertools as it
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import re
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from manimlib.mobject.svg.string_mobject import StringMobject
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from manimlib.utils.tex_file_writing import display_during_execution
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@ -78,13 +78,44 @@ class MTex(StringMobject):
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# Parsing
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@staticmethod
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def get_command_pattern() -> str:
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return r"""
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def get_command_matches(string: str) -> list[re.Match]:
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# Group together adjacent braces
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pattern = re.compile(r"""
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(?P<command>\\(?:[a-zA-Z]+|.))
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|(?P<script>[_^])
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|(?P<open>{)
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|(?P<close>})
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"""
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|(?P<open>{+)
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|(?P<close>}+)
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""", flags=re.X | re.S)
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result = []
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open_stack = []
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for match_obj in pattern.finditer(string):
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if match_obj.group("open"):
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open_stack.append((match_obj.span(), len(result)))
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elif match_obj.group("close"):
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close_start, close_end = match_obj.span()
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while True:
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if not open_stack:
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raise ValueError("Missing '{' inserted")
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(open_start, open_end), index = open_stack.pop()
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n = min(open_end - open_start, close_end - close_start)
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result.insert(index, pattern.fullmatch(
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string, pos=open_end - n, endpos=open_end
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))
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result.append(pattern.fullmatch(
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string, pos=close_start, endpos=close_start + n
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))
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close_start += n
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if close_start < close_end:
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continue
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open_end -= n
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if open_start < open_end:
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open_stack.append(((open_start, open_end), index))
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break
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else:
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result.append(match_obj)
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if open_stack:
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raise ValueError("Missing '}' inserted")
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return result
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@staticmethod
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def get_command_flag(match_obj: re.Match) -> int:
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@ -100,28 +131,19 @@ class MTex(StringMobject):
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@staticmethod
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def replace_for_matching(match_obj: re.Match) -> str:
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if not match_obj.group("command"):
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return ""
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return match_obj.group()
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if match_obj.group("command"):
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return match_obj.group()
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return ""
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@staticmethod
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def get_internal_specified_items(
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command_match_pairs: list[tuple[re.Match, re.Match]]
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) -> list[tuple[Span, dict[str, str]]]:
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command_content_spans = [
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(start_match.end(), end_match.start())
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for start_match, end_match in command_match_pairs
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]
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return [
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(span, {})
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for span, next_span
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in MTex.get_neighbouring_pairs(command_content_spans)
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if span[0] == next_span[0] + 1 and span[1] == next_span[1] - 1
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]
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def get_attr_dict_from_command_pair(
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open_command: re.Match, close_command: re.Match
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) -> dict[str, str] | None:
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if len(open_command.group()) >= 2:
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return {}
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return None
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def get_external_specified_items(
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self
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) -> list[tuple[Span, dict[str, str]]]:
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def get_configured_items(self) -> list[tuple[Span, dict[str, str]]]:
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return [
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(span, {})
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for selector in self.tex_to_color_map
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@ -64,6 +64,7 @@ class StringMobject(SVGMobject, ABC):
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},
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"base_color": WHITE,
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"isolate": (),
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"protect": (),
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}
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def __init__(self, string: str, **kwargs):
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@ -187,11 +188,6 @@ class StringMobject(SVGMobject, ABC):
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result.extend(spans)
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return list(filter(lambda span: span[0] < span[1], result))
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@staticmethod
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def get_neighbouring_pairs(vals: Iterable[T]) -> list[tuple[T, T]]:
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val_list = list(vals)
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return list(zip(val_list[:-1], val_list[1:]))
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@staticmethod
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def span_contains(span_0: Span, span_1: Span) -> bool:
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return span_0[0] <= span_1[0] and span_0[1] >= span_1[1]
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@ -214,6 +210,126 @@ class StringMobject(SVGMobject, ABC):
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def get_substr(span: Span) -> str:
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return self.string[slice(*span)]
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def get_neighbouring_pairs(vals: Iterable[T]) -> list[tuple[T, T]]:
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val_list = list(vals)
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return list(zip(val_list[:-1], val_list[1:]))
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command_matches = self.get_command_matches(self.string)
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command_spans = [match_obj.span() for match_obj in command_matches]
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configured_items = self.get_configured_items()
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#configured_spans = [span for span, _ in configured_items]
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#configured_attr_dicts = [d for _, d in configured_items]
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categorized_spans = [
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[span for span, _ in configured_items],
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self.find_spans_by_selector(self.isolate),
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self.find_spans_by_selector(self.protect),
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command_spans # TODO
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]
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sorted_items = sorted([
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(category, category_index, flag, *span[::flag])
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for category, spans in enumerate(categorized_spans)
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for category_index, span in enumerate(spans)
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for flag in (1, -1)
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], key=lambda t: (t[3], t[2], -t[4], t[2] * (t[0] + 1), t[2] * t[1])) # TODO
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labelled_spans = []
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attr_dicts = []
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inserted_items = []
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label = 0
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region_index = 0
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protect_level = 0
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bracket_levels = [0]
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open_command_stack = []
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open_stack = []
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#protect_level_stack = []
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#bracket_level_stack = []
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#inserted_position_stack = []
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#index_items_len = 0 # label * 2
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for category, i, flag, _, _ in sorted_items:
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if category in (2, 3):
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if flag == 1:
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protect_level += 1
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continue
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protect_level -= 1
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if category == 2:
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continue
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region_index += 1
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command_match = command_matches[i]
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command_flag = self.get_command_flag(command_match)
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if command_flag == 1:
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bracket_levels.append(bracket_levels[-1] + 1)
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open_command_stack.append(
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(command_match, region_index, label)
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)
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continue
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elif command_flag == 0:
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continue
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bracket_levels.append(bracket_levels[-1] - 1)
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command_match_, region_index_, label_ = open_command_stack.pop()
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attr_dict = self.get_attr_dict_from_command_pair(
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command_match_, command_match
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)
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if attr_dict is None:
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continue
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span = (command_match_.end(), command_match.start())
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else:
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if flag == 1:
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open_stack.append(
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(category, i, protect_level, region_index, label)
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)
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continue
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category_, i_, protect_level_, region_index_, label_ \
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= open_stack.pop()
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span = categorized_spans[category][i]
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if (category_, i_) != (category, i):
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log.warning(
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"Partly overlapping substrings detected: '%s' and '%s'",
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get_substr(categorized_spans[category_][i_]),
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get_substr(span)
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)
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continue
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if protect_level_ or protect_level:
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continue
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levels = bracket_levels[region_index_:region_index]
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if levels and (
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any(levels[0] > l for l in levels) or levels[0] < levels[-1]
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):
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log.warning(
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"Cannot handle substring '%s'", get_substr(span)
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)
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continue
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attr_dict = {} if category == 1 else configured_items[i][1]
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pos = label_ * 2
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labelled_spans.append(span)
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attr_dicts.append(attr_dict)
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inserted_items.insert(pos, (label, 1, span[0], region_index_))
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inserted_items.append((label, -1, span[1], region_index))
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label += 1
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extended_inserted_items = [
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(-1, 1, 0, 0),
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*inserted_items,
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(-1, -1, len(self.string), len(command_matches))
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]
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inserted_label_items = [
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(label, flag)
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for label, flag, _, _ in extended_inserted_items
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]
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inserted_indices = [
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index
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for _, _, index, _ in extended_inserted_items
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]
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inserted_region_indices = [
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region_index
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for _, _, _, region_index in extended_inserted_items
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]
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inserted_interval_spans = get_neighbouring_pairs(inserted_indices)
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inserted_interval_region_spans = get_neighbouring_pairs(inserted_region_indices)
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def get_complement_spans(
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universal_span: Span, interval_spans: list[Span]
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) -> list[Span]:
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@ -226,108 +342,26 @@ class StringMobject(SVGMobject, ABC):
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(*span_ends, universal_span[1])
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))
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full_len = len(self.string)
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command_matches = list(re.finditer(
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self.get_command_pattern(), self.string, re.X | re.S
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))
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command_flags = [
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self.get_command_flag(command_match)
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for command_match in command_matches
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]
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command_match_pairs = self.get_command_match_pairs(
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command_matches, command_flags
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)
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all_specified_items = [
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*self.get_internal_specified_items(command_match_pairs),
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*self.get_external_specified_items(),
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*[
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(span, {})
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for span in self.find_spans_by_selector(self.isolate)
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]
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]
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command_spans = [match_obj.span() for match_obj in command_matches]
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region_spans = get_complement_spans(
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(0, full_len), command_spans
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)
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def get_region_index(index: int) -> int:
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for region_index, (start, end) in enumerate(region_spans):
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if start <= index <= end:
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return region_index
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return -1
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labelled_spans = []
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attr_dicts = []
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for span, attr_dict in all_specified_items:
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region_range = tuple(get_region_index(index) for index in span)
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if -1 in region_range:
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continue
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levels = list(it.accumulate(command_flags[slice(*region_range)]))
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if levels and any([
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*(level < 0 for level in levels), levels[-1] > 0
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]):
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log.warning(
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"Cannot handle substring '%s', ignored",
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get_substr(span)
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)
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continue
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overlapped_spans = [
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s for s in labelled_spans if any([
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s[0] < span[0] < s[1] < span[1],
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span[0] < s[0] < span[1] < s[1]
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])
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]
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if overlapped_spans:
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log.warning(
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"Substring '%s' partly overlaps with '%s', ignored",
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get_substr(span),
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get_substr(overlapped_spans[0])
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)
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continue
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labelled_spans.append(span)
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attr_dicts.append(attr_dict)
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inserted_items = [
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label_flag_pair
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for _, label_flag_pair in sorted(it.chain(*(
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sorted([
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(span[::flag], (label, flag))
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for label, span in list(enumerate(labelled_spans))[::flag]
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], key=lambda t: (t[0][0], -t[0][1]))
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for flag in (-1, 1)
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)), key=lambda t: t[0][0])
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]
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#inserted_indices = [0, *(
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# labelled_spans[label][flag < 0]
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# for label, flag in inserted_items
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#), full_len]
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inserted_interval_items = [
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tuple(zip(*pair))
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for pair in self.get_neighbouring_pairs([
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(index, get_region_index(index))
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for index in [0, *(
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labelled_spans[label][flag < 0]
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for label, flag in inserted_items
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), full_len]
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])
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]
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def join_strs(strs: list[str], inserted_strs: list[str]) -> str:
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return "".join(it.chain(*zip(strs, (*inserted_strs, ""))))
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subpieces_groups = [
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[
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get_substr(s)
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for s in get_complement_spans(
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span, command_spans[slice(*region_range)]
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)
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]
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for span, region_range in zip(inserted_interval_spans, inserted_interval_region_spans)
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]
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def get_replaced_pieces(replace_func: Callable[[re.Match], str]) -> list[str]:
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return [
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join_strs([
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get_substr(s)
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for s in get_complement_spans(
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span, command_spans[slice(*region_range)]
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)
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], [
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join_strs(subpieces, [
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replace_func(command_match)
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for command_match in command_matches[slice(*region_range)]
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])
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for span, region_range in inserted_interval_items
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for subpieces, region_range in zip(subpieces_groups, inserted_interval_region_spans)
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]
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content_pieces = get_replaced_pieces(self.replace_for_content)
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@ -340,7 +374,7 @@ class StringMobject(SVGMobject, ABC):
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is_end=flag < 0,
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label_hex=self.int_to_hex(label + 1) if is_labelled else None
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)
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for label, flag in inserted_items
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for label, flag in inserted_label_items[1:-1]
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]
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prefix, suffix = self.get_content_prefix_and_suffix(
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is_labelled=is_labelled
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@ -351,18 +385,27 @@ class StringMobject(SVGMobject, ABC):
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suffix
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])
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def get_group_substrs(group_labels: list[int]) -> list[str]:
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if not group_labels:
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def get_group_part_items_by_labels(labels: list[int]) -> list[tuple[str, list[int]]]:
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if not labels:
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return []
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range_lens, group_labels = zip(*(
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(len(list(grouper)), val)
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for val, grouper in it.groupby(labels)
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))
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submob_indices_lists = [
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list(range(*submob_range))
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for submob_range in get_neighbouring_pairs(
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[0, *it.accumulate(range_lens)]
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)
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]
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def get_index(label, flag):
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if label == -1:
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return 0 if flag == 1 else len(inserted_items) + 1
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return inserted_items.index((label, flag)) + 1
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return inserted_label_items.index((label, flag))
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def get_labelled_span(label):
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if label == -1:
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return (0, full_len)
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return (0, len(self.string))
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return labelled_spans[label]
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def label_contains(label_0, label_1):
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|
@ -376,7 +419,7 @@ class StringMobject(SVGMobject, ABC):
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# get_index(curr_label, 1)
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# if label_contains(prev_label, curr_label)
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# else get_index(prev_label, -1)
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# for prev_label, curr_label in self.get_neighbouring_pairs(
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# for prev_label, curr_label in get_neighbouring_pairs(
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# group_labels
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# )
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# )
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|
@ -386,7 +429,7 @@ class StringMobject(SVGMobject, ABC):
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# get_index(curr_label, -1)
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# if label_contains(next_label, curr_label)
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# else get_index(next_label, 1)
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# for curr_label, next_label in self.get_neighbouring_pairs(
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# for curr_label, next_label in get_neighbouring_pairs(
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# group_labels
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# )
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# ),
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|
@ -404,26 +447,27 @@ class StringMobject(SVGMobject, ABC):
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if label_contains(next_label, prev_label)
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else get_index(next_label, 1)
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)
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for prev_label, next_label in self.get_neighbouring_pairs(
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for prev_label, next_label in get_neighbouring_pairs(
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group_labels
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)
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]
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)
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return [
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group_substrs = [
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re.sub(r"\s+", "", "".join(
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matching_pieces[slice(*piece_ranges)]
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))
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for piece_ranges in piece_ranges
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]
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return list(zip(group_substrs, submob_indices_lists))
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self.labelled_spans = labelled_spans
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self.get_content = get_content
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self.get_group_substrs = get_group_substrs
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self.get_group_part_items_by_labels = get_group_part_items_by_labels
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@staticmethod
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@abstractmethod
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def get_command_pattern() -> str:
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return r"(?!)"
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def get_command_matches(string: str) -> list[re.Match]:
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return []
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|
||||
@staticmethod
|
||||
@abstractmethod
|
||||
|
@ -442,15 +486,13 @@ class StringMobject(SVGMobject, ABC):
|
|||
|
||||
@staticmethod
|
||||
@abstractmethod
|
||||
def get_internal_specified_items(
|
||||
command_match_pairs: list[tuple[re.Match, re.Match]]
|
||||
) -> list[tuple[Span, dict[str, str]]]:
|
||||
return []
|
||||
def get_attr_dict_from_command_pair(
|
||||
open_command: re.Match, close_command: re.Match,
|
||||
) -> dict[str, str] | None:
|
||||
return None
|
||||
|
||||
@abstractmethod
|
||||
def get_external_specified_items(
|
||||
self
|
||||
) -> list[tuple[Span, dict[str, str]]]:
|
||||
def get_configured_items(self) -> list[tuple[Span, dict[str, str]]]:
|
||||
return []
|
||||
|
||||
@staticmethod
|
||||
|
@ -466,26 +508,6 @@ class StringMobject(SVGMobject, ABC):
|
|||
) -> tuple[str, str]:
|
||||
return "", ""
|
||||
|
||||
@staticmethod
|
||||
def get_command_match_pairs(
|
||||
command_matches: list[re.Match], command_flags: list[int]
|
||||
) -> list[tuple[re.Match, re.Match]]:
|
||||
result = []
|
||||
open_stack = []
|
||||
for command_match, flag in zip(command_matches, command_flags):
|
||||
if flag == 1:
|
||||
open_stack.append(command_match)
|
||||
elif flag == -1:
|
||||
if not open_stack:
|
||||
raise ValueError("Missing open command")
|
||||
open_command_match = open_stack.pop()
|
||||
result.append(
|
||||
(open_command_match, command_match)
|
||||
)
|
||||
if open_stack:
|
||||
raise ValueError("Missing close command")
|
||||
return result
|
||||
|
||||
# Selector
|
||||
|
||||
def get_submob_indices_list_by_span(
|
||||
|
@ -509,21 +531,7 @@ class StringMobject(SVGMobject, ABC):
|
|||
]
|
||||
|
||||
def get_group_part_items(self) -> list[tuple[str, list[int]]]:
|
||||
if not self.labels:
|
||||
return []
|
||||
|
||||
range_lens, group_labels = zip(*(
|
||||
(len(list(grouper)), val)
|
||||
for val, grouper in it.groupby(self.labels)
|
||||
))
|
||||
submob_indices_lists = [
|
||||
list(range(*submob_range))
|
||||
for submob_range in self.get_neighbouring_pairs(
|
||||
[0, *it.accumulate(range_lens)]
|
||||
)
|
||||
]
|
||||
group_substrs = self.get_group_substrs(list(group_labels))
|
||||
return list(zip(group_substrs, submob_indices_lists))
|
||||
return self.get_group_part_items_by_labels(self.labels)
|
||||
|
||||
def get_submob_indices_lists_by_selector(
|
||||
self, selector: Selector
|
||||
|
|
|
@ -239,8 +239,8 @@ class MarkupText(StringMobject):
|
|||
# Parsing
|
||||
|
||||
@staticmethod
|
||||
def get_command_pattern() -> str:
|
||||
return r"""
|
||||
def get_command_matches(string: str) -> list[re.Match]:
|
||||
pattern = re.compile(r"""
|
||||
(?P<tag>
|
||||
<
|
||||
(?P<close_slash>/)?
|
||||
|
@ -254,7 +254,8 @@ class MarkupText(StringMobject):
|
|||
)
|
||||
|(?P<entity>&(?P<unicode>\#(?P<hex>x)?)?(?P<content>.*?);)
|
||||
|(?P<char>[>"'])
|
||||
"""
|
||||
""", flags=re.X | re.S)
|
||||
return list(pattern.finditer(string))
|
||||
|
||||
@staticmethod
|
||||
def get_command_flag(match_obj: re.Match) -> int:
|
||||
|
@ -287,34 +288,25 @@ class MarkupText(StringMobject):
|
|||
return match_obj.group()
|
||||
|
||||
@staticmethod
|
||||
def get_internal_specified_items(
|
||||
command_match_pairs: list[tuple[re.Match, re.Match]]
|
||||
) -> list[tuple[Span, dict[str, str]]]:
|
||||
def get_attr_dict_from_command_pair(
|
||||
open_command: re.Match, close_command: re.Match
|
||||
) -> dict[str, str] | None:
|
||||
pattern = r"""
|
||||
(?P<attr_name>\w+)
|
||||
\s*\=\s*
|
||||
(?P<quot>["'])(?P<attr_val>.*?)(?P=quot)
|
||||
"""
|
||||
result = []
|
||||
for start_match, end_match in command_match_pairs:
|
||||
tag_name = start_match.group("tag_name")
|
||||
if tag_name == "span":
|
||||
attr_dict = {
|
||||
match_obj.group("attr_name"): match_obj.group("attr_val")
|
||||
for match_obj in re.finditer(
|
||||
pattern, start_match.group("attr_list"), re.S | re.X
|
||||
)
|
||||
}
|
||||
else:
|
||||
attr_dict = MarkupText.MARKUP_TAGS.get(tag_name, {})
|
||||
result.append(
|
||||
((start_match.end(), end_match.start()), attr_dict)
|
||||
)
|
||||
return result
|
||||
tag_name = open_command.group("tag_name")
|
||||
if tag_name == "span":
|
||||
return {
|
||||
match_obj.group("attr_name"): match_obj.group("attr_val")
|
||||
for match_obj in re.finditer(
|
||||
pattern, open_command.group("attr_list"), re.S | re.X
|
||||
)
|
||||
}
|
||||
return MarkupText.MARKUP_TAGS.get(tag_name, {})
|
||||
|
||||
def get_external_specified_items(
|
||||
self
|
||||
) -> list[tuple[Span, dict[str, str]]]:
|
||||
def get_configured_items(self) -> list[tuple[Span, dict[str, str]]]:
|
||||
return [
|
||||
*[
|
||||
(span, {key: val})
|
||||
|
|
Loading…
Add table
Reference in a new issue