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import re
from docutils.parsers.rst import Directive
from matplotlib import _mathtext, _mathtext_data
bb_pattern = re.compile("Bbb[A-Z]")
scr_pattern = re.compile("scr[a-zA-Z]")
frak_pattern = re.compile("frak[A-Z]")
symbols = [
["Lower-case Greek",
4,
(r"\alpha", r"\beta", r"\gamma", r"\chi", r"\delta", r"\epsilon",
r"\eta", r"\iota", r"\kappa", r"\lambda", r"\mu", r"\nu", r"\omega",
r"\phi", r"\pi", r"\psi", r"\rho", r"\sigma", r"\tau", r"\theta",
r"\upsilon", r"\xi", r"\zeta", r"\digamma", r"\varepsilon", r"\varkappa",
r"\varphi", r"\varpi", r"\varrho", r"\varsigma", r"\vartheta")],
["Upper-case Greek",
4,
(r"\Delta", r"\Gamma", r"\Lambda", r"\Omega", r"\Phi", r"\Pi", r"\Psi",
r"\Sigma", r"\Theta", r"\Upsilon", r"\Xi")],
["Hebrew",
6,
(r"\aleph", r"\beth", r"\gimel", r"\daleth")],
["Latin named characters",
6,
r"""\aa \AA \ae \AE \oe \OE \O \o \thorn \Thorn \ss \eth \dh \DH""".split()],
["Delimiters",
5,
_mathtext.Parser._delims],
["Big symbols",
5,
_mathtext.Parser._overunder_symbols | _mathtext.Parser._dropsub_symbols],
["Standard function names",
5,
{fr"\{fn}" for fn in _mathtext.Parser._function_names}],
["Binary operation symbols",
4,
_mathtext.Parser._binary_operators],
["Relation symbols",
4,
_mathtext.Parser._relation_symbols],
["Arrow symbols",
4,
_mathtext.Parser._arrow_symbols],
["Dot symbols",
4,
r"""\cdots \vdots \ldots \ddots \adots \Colon \therefore \because""".split()],
["Black-board characters",
6,
[fr"\{symbol}" for symbol in _mathtext_data.tex2uni
if re.match(bb_pattern, symbol)]],
["Script characters",
6,
[fr"\{symbol}" for symbol in _mathtext_data.tex2uni
if re.match(scr_pattern, symbol)]],
["Fraktur characters",
6,
[fr"\{symbol}" for symbol in _mathtext_data.tex2uni
if re.match(frak_pattern, symbol)]],
["Miscellaneous symbols",
4,
r"""\neg \infty \forall \wp \exists \bigstar \angle \partial
\nexists \measuredangle \emptyset \sphericalangle \clubsuit
\varnothing \complement \diamondsuit \imath \Finv \triangledown
\heartsuit \jmath \Game \spadesuit \ell \hbar \vartriangle
\hslash \blacksquare \blacktriangle \sharp \increment
\prime \blacktriangledown \Im \flat \backprime \Re \natural
\circledS \P \copyright \circledR \S \yen \checkmark \$
\cent \triangle \QED \sinewave \dag \ddag \perthousand \ac
\lambdabar \L \l \degree \danger \maltese \clubsuitopen
\i \hermitmatrix \sterling \nabla \mho""".split()],
]
def run(state_machine):
def render_symbol(sym, ignore_variant=False):
if ignore_variant and sym not in (r"\varnothing", r"\varlrtriangle"):
sym = sym.replace(r"\var", "\\")
if sym.startswith("\\"):
sym = sym.lstrip("\\")
if sym not in (_mathtext.Parser._overunder_functions |
_mathtext.Parser._function_names):
sym = chr(_mathtext_data.tex2uni[sym])
return f'\\{sym}' if sym in ('\\', '|', '+', '-', '*') else sym
lines = []
for category, columns, syms in symbols:
syms = sorted(syms,
# Sort by Unicode and place variants immediately
# after standard versions.
key=lambda sym: (render_symbol(sym, ignore_variant=True),
sym.startswith(r"\var")),
reverse=(category == "Hebrew")) # Hebrew is rtl
rendered_syms = [f"{render_symbol(sym)} ``{sym}``" for sym in syms]
columns = min(columns, len(syms))
lines.append("**%s**" % category)
lines.append('')
max_width = max(map(len, rendered_syms))
header = (('=' * max_width) + ' ') * columns
lines.append(header.rstrip())
for part in range(0, len(rendered_syms), columns):
row = " ".join(
sym.rjust(max_width) for sym in rendered_syms[part:part + columns])
lines.append(row)
lines.append(header.rstrip())
lines.append('')
state_machine.insert_input(lines, "Symbol table")
return []
class MathSymbolTableDirective(Directive):
has_content = False
required_arguments = 0
optional_arguments = 0
final_argument_whitespace = False
option_spec = {}
def run(self):
return run(self.state_machine)
def setup(app):
app.add_directive("math_symbol_table", MathSymbolTableDirective)
metadata = {'parallel_read_safe': True, 'parallel_write_safe': True}
return metadata
if __name__ == "__main__":
# Do some verification of the tables
print("SYMBOLS NOT IN STIX:")
all_symbols = {}
for category, columns, syms in symbols:
if category == "Standard Function Names":
continue
for sym in syms:
if len(sym) > 1:
all_symbols[sym[1:]] = None
if sym[1:] not in _mathtext_data.tex2uni:
print(sym)
# Add accents
all_symbols.update({v[1:]: k for k, v in _mathtext.Parser._accent_map.items()})
all_symbols.update({v: v for v in _mathtext.Parser._wide_accents})
print("SYMBOLS NOT IN TABLE:")
for sym, val in _mathtext_data.tex2uni.items():
if sym not in all_symbols:
print(f"{sym} = {chr(val)}")
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