Merge pull request #23 from nschloe/percentage

don't match escaped comment signs

Author: nschloe

README.md

@@ -8,8 +8,6 @@
 [![GitHub stars](https://img.shields.io/github/stars/nschloe/blacktex.svg?style=flat-square&logo=github&label=Stars&logoColor=white)](https://github.com/nschloe/blacktex)
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-
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blacktex/main.py

@@ -16,9 +16,10 @@ def _remove_comments(string):
     string = "\n".join([lines[k] for k in range(len(lines)) if k not in comment_lines])
 
     # https://stackoverflow.com/a/2319116/353337
-    string = re.sub("[ \t]*%.+\n", "\n", string)
+    # https://stackoverflow.com/a/24209736/353337
+    string = re.sub("[ \t]*(?<!\\\\)%.+\n", "\n", string)
     # same with EOF
-    string = re.sub("[ \t]*%.+$", "", string)
+    string = re.sub("[ \t]*(?<!\\\\)%.+$", "", string)
     return string
 
 

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = blacktex
-version = 0.3.3
+version = 0.3.4
 author = Nico Schlömer
 author_email = [email protected]
 description = Cleans up your LaTeX files
@@ -12,7 +12,6 @@ project_urls =
 long_description = file: README.md
 long_description_content_type = text/markdown
 license = GPL-3.0-or-later
-license_file = LICENSE
 classifiers =
     Development Status :: 4 - Beta
     License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)

test/test_blacktex.py

@@ -40,6 +40,10 @@ def test_comments():
     out = blacktex.clean(input_string)
     assert out == "A\n sit amet"
 
+    input_string = "{equation}%comment"
+    out = blacktex.clean(input_string)
+    assert out == "{equation}"
+
 
 def test_multiple_comment_lines():
     input_string = "A\n%\n%\nB"
@@ -54,6 +58,12 @@ def test_comment_last():
     assert out == ref, f"{repr(out)} != {repr(ref)}"
 
 
+def test_escapted_percentage_sign():
+    input_string = "25\\% gain"
+    out = blacktex.clean(input_string)
+    assert out == "25\\% gain"
+
+
 def test_trailing_whitespace():
     input_string = "lorem    \n sit amet"
     out = blacktex.clean(input_string)