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Parse {lua,xe}tex-generated dvi in dviread. #29939

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Parse {lua,xe}tex-generated dvi in dviread. #29939

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7 changes: 3 additions & 4 deletions lib/matplotlib/backends/backend_pdf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1035,11 +1035,10 @@ def _embedTeXFont(self, dvifont):
fontdict['Encoding'] = self._generate_encoding(encoding)
fc = fontdict['FirstChar'] = min(encoding.keys(), default=0)
lc = fontdict['LastChar'] = max(encoding.keys(), default=255)

# Convert glyph widths from TeX 12.20 fixed point to 1/1000 text space units
tfm = dvifont._tfm
widths = [(1000 * metrics.tex_width) >> 20
if (metrics := tfm.get_metrics(char)) else 0
font_metrics = dvifont._metrics
widths = [(1000 * glyph_metrics.tex_width) >> 20
if (glyph_metrics := font_metrics.get_metrics(char)) else 0
for char in range(fc, lc + 1)]
fontdict['Widths'] = widthsObject = self.reserveObject('glyph widths')
self.writeObject(widthsObject, widths)
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10 changes: 7 additions & 3 deletions lib/matplotlib/cbook.py
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Expand Up @@ -43,16 +43,20 @@ class _ExceptionInfo:
users and result in incorrect tracebacks.
"""

def __init__(self, cls, *args):
def __init__(self, cls, *args, notes=None):
self._cls = cls
self._args = args
self._notes = notes if notes is not None else []

@classmethod
def from_exception(cls, exc):
return cls(type(exc), *exc.args)
return cls(type(exc), *exc.args, notes=getattr(exc, "__notes__", []))

def to_exception(self):
return self._cls(*self._args)
exc = self._cls(*self._args)
for note in self._notes:
exc.add_note(note)
return exc


def _get_running_interactive_framework():
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