c3f758c319
Summary:
Added stacked delimiter support for more delimiters. Split out delimiter
functions into its own file, and split out some tree building functions into a
common file. Supports the empty `.` delimiter with \left and \right, and doesn't
try to produce huge /, \backslash, <, or > delimiters. Depends on D7844
Test input:
\left( \left) \left[ \left\lbrack \left] \left\rbrack \left\{ \left\lbrace
\left\} \left\rbrace \left\lfloor \left\rfloor \left\lceil \left\rceil
\left\langle \left\rangle \left/ \left\backslash \left| \left\vert \left\|
\left\Vert \left\uparrow \left\Uparrow \left\downarrow \left\Downarrow
\left\updownarrow \left\Updownarrow {x^{x^{x^{x^{x^{x^{x^{x^{x^{x^x}}}}}}}}}}
\right.\right.\right.\right.\right.\right.\right.\right.\right.\right.
\right.\right.\right.\right.\right.\right.\right.\right.\right.\right.
\right.\right.\right.\right.\right.\right.\right.\right.
Test Plan:
- Run the test input, see that it works
- Run the tests, see that they work
- Look at huxley screenshots (not here yet :( ) and make sure they look good
Reviewers: alpert
Reviewed By: alpert
Differential Revision: http://phabricator.khanacademy.org/D11602
71 lines
1.8 KiB
Python
Executable File
71 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python
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import collections
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import json
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import parse_tfm
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import subprocess
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import sys
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def find_font_path(font_name):
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try:
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font_path = subprocess.check_output(['kpsewhich', font_name])
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except OSError:
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raise RuntimeError("Couldn't find kpsewhich program, make sure you" +
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" have TeX installed")
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except subprocess.CalledProcessError:
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raise RuntimeError("Couldn't find font metrics: '%s'" % font_name)
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return font_path.strip()
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def main():
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mapping = json.load(sys.stdin)
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fonts = [
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'cmbsy10.tfm',
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'cmbx10.tfm',
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'cmex10.tfm',
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'cmmi10.tfm',
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'cmmib10.tfm',
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'cmr10.tfm',
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'cmsy10.tfm',
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'cmti10.tfm',
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'msam10.tfm',
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'msbm10.tfm'
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]
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font_name_to_tfm = {}
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for font_name in fonts:
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font_basename = font_name.split('.')[0]
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font_path = find_font_path(font_name)
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font_name_to_tfm[font_basename] = parse_tfm.read_tfm_file(font_path)
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families = collections.defaultdict(dict)
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for family, chars in mapping.iteritems():
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for char, char_data in chars.iteritems():
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char_num = int(char)
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font = char_data['font']
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tex_char_num = int(char_data['char'])
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yshift = float(char_data['yshift'])
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tfm_char = font_name_to_tfm[font].get_char_metrics(tex_char_num)
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height = round(tfm_char.height + yshift / 1000.0, 5)
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depth = round(tfm_char.depth - yshift / 1000.0, 5)
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italic = round(tfm_char.italic_correction, 5)
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families[family][char_num] = {
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'height': height,
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'depth': depth,
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'italic': italic
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}
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sys.stdout.write(
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json.dumps(families, separators=(',', ':'), sort_keys=True))
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if __name__ == '__main__':
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main()
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