view tests/filterpyflakes.py @ 29155:aaabed77791a stable 3.8.2

help: search section of help topic by translated section name correctly

Before this patch, "hg help topic.section" might show unexpected
section of help topic in some encoding.

It applies str.lower() instead of encoding.lower(str) on translated
message to search section case-insensitively, but some encoding uses
0x41(A) - 0x5a(Z) as the second or later byte of multi-byte character
(for example, ja_JP.cp932), and str.lower() causes unexpected result.

To search section of help topic by translated section name correctly,
this patch replaces str.lower() by encoding.lower(str) for both query
string (in commands.help()) and translated help text (in
minirst.getsections()).

#!/usr/bin/env python

# Filter output by pyflakes to control which warnings we check

from __future__ import absolute_import, print_function

import re
import sys

def makekey(typeandline):
    """
    for sorting lines by: msgtype, path/to/file, lineno, message

    typeandline is a sequence of a message type and the entire message line
    the message line format is path/to/file:line: message

    >>> makekey((3, 'example.py:36: any message'))
    (3, 'example.py', 36, ' any message')
    >>> makekey((7, 'path/to/file.py:68: dummy message'))
    (7, 'path/to/file.py', 68, ' dummy message')
    >>> makekey((2, 'fn:88: m')) > makekey((2, 'fn:9: m'))
    True
    """

    msgtype, line = typeandline
    fname, line, message = line.split(":", 2)
    # line as int for ordering 9 before 88
    return msgtype, fname, int(line), message


lines = []
for line in sys.stdin:
    # We whitelist tests (see more messages in pyflakes.messages)
    pats = [
            (r"imported but unused", None),
            (r"local variable '.*' is assigned to but never used", None),
            (r"unable to detect undefined names", None),
            (r"undefined name '.*'",
             r"undefined name '(WindowsError|memoryview)'")
           ]

    for msgtype, (pat, excl) in enumerate(pats):
        if re.search(pat, line) and (not excl or not re.search(excl, line)):
            break # pattern matches
    else:
        continue # no pattern matched, next line
    fn = line.split(':', 1)[0]
    f = open(fn)
    data = f.read()
    f.close()
    if 'no-' 'check-code' in data:
        continue
    lines.append((msgtype, line))

for msgtype, line in sorted(lines, key=makekey):
    sys.stdout.write(line)
print()

# self test of "undefined name" detection for other than 'memoryview'
if False:
    print(undefinedname)