Revision: 6349
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6349&view=rev
Author: mdboom
Date: 2008-10-29 18:26:34 +0000 (Wed, 29 Oct 2008)
Log Message:
-----------
PDF speed optimization.
Modified Paths:
--------------
trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py
Modified: trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py 2008-10-29
17:16:02 UTC (rev 6348)
+++ trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py 2008-10-29
18:26:34 UTC (rev 6349)
@@ -112,7 +112,7 @@
result.append(' '.join(strings[lasti:]))
return '\n'.join(result)
-
+_string_escape_regex = re.compile(r'([\\()])')
def pdfRepr(obj):
"""Map Python objects to PDF syntax."""
@@ -138,7 +138,7 @@
# simpler to escape them all. TODO: cut long strings into lines;
# I believe there is some maximum line length in PDF.
elif is_string_like(obj):
- return '(' + re.sub(r'([\\()])', r'\\\1', obj) + ')'
+ return '(' + _string_escape_regex.sub(r'\\\1', obj) + ')'
# Dictionaries. The keys must be PDF names, so if we find strings
# there, we make Name objects from them. The values may be
@@ -207,12 +207,13 @@
class Name:
"""PDF name object."""
+ _regex = re.compile(r'[^!-~]')
def __init__(self, name):
if isinstance(name, Name):
self.name = name.name
else:
- self.name = re.sub(r'[^!-~]', Name.hexify, name)
+ self.name = self._regex.sub(Name.hexify, name)
def __repr__(self):
return "<Name %s>" % self.name
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