Version 0.2.0 release, closes #114, closes #38, closes #36

.travis.yml

@@ -4,6 +4,7 @@ dist: xenial
 python:
   - 3.6
   - 3.7
+  - 3.8
 
 install:
   - pip install poetry
@@ -13,6 +14,9 @@ script:
   - poetry run flake8 .
   - poetry run pytest
   - poetry run mypy flake8_broken_line.py
+  - poetry check
+  - poetry run pip check
+  - poetry run safety check --bare --full-report
 
 after_success:
   - pip install coveralls

CHANGELOG.md

@@ -0,0 +1,26 @@
+# Version history
+
+We follow Semantic Versions since the `0.1.0` release.
+
+## 0.2.0
+
+### Features
+
+- Adds `python3.8` support
+
+### Bugfixes
+
+- Fixes a bunch of false positives
+
+
+## 0.1.1
+
+### Bugfixes
+
+- Fixes typos
+- Updates project structure
+
+
+## 0.1.0
+
+- Initial release

flake8_broken_line.py

@@ -1,25 +1,46 @@
 # -*- coding: utf-8 -*-
 
 import re
-from typing import Optional, Tuple
+from typing import Iterator, Tuple, Sequence, Set
+import tokenize
 
 import pkg_resources
 
+#: This is a name that we use to install this library:
 pkg_name = 'flake8-broken-line'
 
 #: We store the version number inside the `pyproject.toml`:
 pkg_version: str = pkg_resources.get_distribution(pkg_name).version
 
-INVALID_LINE_BREAK = re.compile(r'(?<!\\)\\$', re.M)
+_INVALID_LINE_BREAK = re.compile(r'(?<!\\)\\$', re.M)
+_IGNORED_TOKENS = frozenset((
+    tokenize.STRING,
+    tokenize.COMMENT,
+    tokenize.NL,
+    tokenize.NEWLINE,
+    tokenize.ENDMARKER,
+))
 
-N400 = 'N400: Found backslash that is used for line breaking'
+_N400 = 'N400: Found backslash that is used for line breaking'
 
 
-def check_line_breaks(physical_line: str) -> Optional[Tuple[int, str]]:
+def check_line_breaks(
+    tree,  # we only need this parameter, so plugin will be installed.
+    file_tokens: Sequence[tokenize.TokenInfo],
+) -> Iterator[Tuple[int, int, str, str]]:
     """Functional ``flake8`` plugin to check for backslashes."""
-    if INVALID_LINE_BREAK.search(physical_line.rstrip()):
-        return 0, N400
-    return None
+    reported: Set[int] = set()
+
+    for line_token in file_tokens:
+        if line_token.exact_type in _IGNORED_TOKENS:
+            continue
+
+        if line_token.start[0] in reported:
+            continue  # There might be several tokens on a same line.
+
+        if _INVALID_LINE_BREAK.search(line_token.line):
+            yield (*line_token.start, _N400, 'check_line_breaks')
+            reported.add(line_token.start[0])
 
 
 # Flake8 API definition: