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Build error
from latex2mathml.converter import convert as tex2mathml | |
import re | |
incomplete = '<font style="color:orange;" class="tooltip">⚠<span class="tooltiptext">formula incomplete</span></font>' | |
convError = '<font style="color:red" class="tooltip">⚠<span class="tooltiptext">LaTeX-convert-error</span></font>' | |
def convert(mdtex, extensions=[], splitParagraphs=True): | |
''' converts recursively the Markdown-LaTeX-mixture to HTML with MathML ''' | |
found = False | |
# handle all paragraphs separately (prevents aftereffects) | |
if splitParagraphs: | |
parts = re.split("\n\n", mdtex) | |
result = '' | |
for part in parts: | |
result += convert(part, extensions, splitParagraphs=False) | |
return result | |
# find first $$-formula: | |
parts = re.split('\${2}', mdtex, 2) | |
if len(parts)>1: | |
found = True | |
result = convert(parts[0], extensions, splitParagraphs=False)+'\n' | |
try: | |
result += '<div class="blockformula">'+tex2mathml(parts[1])+'</div>\n' | |
except: | |
result += '<div class="blockformula">'+convError+'</div>' | |
if len(parts)==3: | |
result += convert(parts[2], extensions, splitParagraphs=False) | |
else: | |
result += '<div class="blockformula">'+incomplete+'</div>' | |
# else find first $-formulas: | |
else: | |
parts = re.split('\${1}', mdtex, 2) | |
if len(parts)>1 and not found: | |
found = True | |
try: | |
mathml = tex2mathml(parts[1]) | |
except: | |
mathml = convError | |
if parts[0].endswith('\n\n') or parts[0]=='': # make sure textblock starts before formula! | |
parts[0]=parts[0]+'​' | |
if len(parts)==3: | |
result = convert(parts[0]+mathml+parts[2], extensions, splitParagraphs=False) | |
else: | |
result = convert(parts[0]+mathml+incomplete, extensions, splitParagraphs=False) | |
# else find first \[..\]-equation: | |
else: | |
parts = re.split(r'\\\[', mdtex, 1) | |
if len(parts)>1 and not found: | |
found = True | |
result = convert(parts[0], extensions, splitParagraphs=False)+'\n' | |
parts = re.split(r'\\\]', parts[1], 1) | |
try: | |
result += '<div class="blockformula">'+tex2mathml(parts[0])+'</div>\n' | |
except: | |
result += '<div class="blockformula">'+convError+'</div>' | |
if len(parts)==2: | |
result += convert(parts[1], extensions, splitParagraphs=False) | |
else: | |
result += '<div class="blockformula">'+incomplete+'</div>' | |
# else find first \(..\)-equation: | |
else: | |
parts = re.split(r'\\\(', mdtex, 1) | |
if len(parts)>1 and not found: | |
found = True | |
subp = re.split(r'\\\)', parts[1], 1) | |
try: | |
mathml = tex2mathml(subp[0]) | |
except: | |
mathml = convError | |
if parts[0].endswith('\n\n') or parts[0]=='': # make sure textblock starts before formula! | |
parts[0]=parts[0]+'​' | |
if len(subp)==2: | |
result = convert(parts[0]+mathml+subp[1], extensions, splitParagraphs=False) | |
else: | |
result = convert(parts[0]+mathml+incomplete, extensions, splitParagraphs=False) | |
if not found: | |
result = mdtex | |
return result |