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744e695340
* Comment tweak * Directly print traceback Since the shell.showtraceback is giving some issues * Make InteracrtiveSceneEmbed into a class This way it can keep track of it's internal shell; use of get_ipython has a finicky relationship with reloading. * Move remaining checkpoint_paste logic into scene_embed.py This involved making a few context managers for Scene: temp_record, temp_skip, temp_progress_bar, which seem useful in and of themselves. * Change null key to be the empty string * Ensure temporary svg paths for Text are deleted * Remove unused dict_ops.py functions * Remove break_into_partial_movies from file_writer configuration * Rewrite guarantee_existence using Path * Clean up SceneFileWriter It had a number of vestigial functions no longer used, and some setup that could be made more organized. * Remove --save_pngs CLI arg (which did nothing) * Add --subdivide CLI arg * Remove add_extension_if_not_present * Remove get_sorted_integer_files * Have find_file return Path * Minor clean up * Clean up num_tex_symbols * Fix find_file * Minor cleanup for extract_scene.py * Add preview_frame_while_skipping option to scene config * Use shell.showtraceback function * Move keybindings to config, instead of in-place constants * Replace DEGREES -> DEG
38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
from __future__ import annotations
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import re
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from functools import lru_cache
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from manimlib.utils.tex_to_symbol_count import TEX_TO_SYMBOL_COUNT
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@lru_cache
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def num_tex_symbols(tex: str) -> int:
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tex = remove_tex_environments(tex)
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commands_pattern = r"""
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(?P<sqrt>\\sqrt\[[0-9]+\])| # Special sqrt with number
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(?P<cmd>\\[a-zA-Z!,-/:;<>]+) # Regular commands
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"""
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total = 0
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pos = 0
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for match in re.finditer(commands_pattern, tex, re.VERBOSE):
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# Count normal characters up to this command
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total += sum(1 for c in tex[pos:match.start()] if c not in "^{} \n\t_$\\&")
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if match.group("sqrt"):
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total += len(match.group()) - 5
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else:
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total += TEX_TO_SYMBOL_COUNT.get(match.group(), 1)
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pos = match.end()
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# Count remaining characters
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total += sum(1 for c in tex[pos:] if c not in "^{} \n\t_$\\&")
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return total
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def remove_tex_environments(tex: str) -> str:
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# Handle \phantom{...} with any content
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tex = re.sub(r"\\phantom\{[^}]*\}", "", tex)
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# Handle other environment commands
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tex = re.sub(r"\\(begin|end)(\{\w+\})?(\{\w+\})?(\[\w+\])?", "", tex)
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return tex
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