docchecker: try to reject single quotes

doc/docchecker

@@ -1,61 +1,63 b''
 #!/usr/bin/env python
 #
 # docchecker - look for problematic markup
 #
 # Copyright 2016 timeless <[e-mail]> and others
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 import sys
 import re
 
 leadingline = re.compile(r'(^\s*)(\S.*)$')
 
 checks = [
   (r""":hg:`[^`]*'[^`]*`""",
     """warning: please avoid nesting ' in :hg:`...`"""),
   (r'\w:hg:`',
     'warning: please have a space before :hg:'),
+  (r"""(?:[^a-z][^'.])hg ([^,;"`]*'(?!hg)){2}""",
+    '''warning: please use " instead of ' for hg ... "..."'''),
 ]
 
 def check(line):
     messages = []
     for match, msg in checks:
         if re.search(match, line):
             messages.append(msg)
     if messages:
         print(line)
         for msg in messages:
             print(msg)
 
 def work(file):
     (llead, lline) = ('', '')
 
     for line in file:
         # this section unwraps lines
         match = leadingline.match(line)
         if not match:
             check(lline)
             (llead, lline) = ('', '')
             continue
 
         lead, line = match.group(1), match.group(2)
         if (lead == llead):
             if (lline != ''):
                 lline += ' ' + line
             else:
                 lline = line
         else:
             check(lline)
             (llead, lline) = (lead, line)
     check(lline)
 
 def main():
     for f in sys.argv[1:]:
         try:
             with open(f) as file:
                 work(file)
         except BaseException as e:
             print("failed to process %s: %s" % (f, e))
 
 main()

tests/test-gendoc-ja.t

@@ -1,4 +1,6 b''
 #require docutils gettext
 
   $ $TESTDIR/check-gendoc ja
   checking for parse errors
+  \xe8\xa4\x87\xe8\xa3\xbd\xef\xbc\x8f\xe6\x94\xb9\xe5\x90\x8d\xe3\x81\xab\xe9\x96\xa2\xe3\x81\x99\xe3\x82\x8b\xe5\xb1\xa5\xe6\xad\xb4\xe4\xbf\x9d\xe5\xad\x98\xe3\x81\xae\xe3\x81\x9f\xe3\x82\x81\xe3\x81\xab git \xe5\xb7\xae\xe5\x88\x86\xe5\xbd\xa2\xe5\xbc\x8f\xe3\x82\x92\xe4\xbd\xbf\xe7\x94\xa8(-g/--git \xe6\x8c\x87\xe5\xae\x9a\xe3\x82\x84 \xe8\xa8\xad\xe5\xae\x9a\xe3\x83\x95\xe3\x82\xa1\xe3\x82\xa4\xe3\x83\xab\xe3\x81\xa7\xe3\x81\xae [diff] git=1 \xe8\xa8\x98\xe8\xbf\xb0)\xe3\x81\x99\xe3\x82\x8b\xe3\x81\xae\xe3\x81\xa7\xe3\x81\x82\xe3\x82\x8c\xe3\x81\xb0\xe3\x80\x81 add/remove/copy/rename \xe3\x81\xa8\xe3\x81\x84\xe3\x81\xa3\xe3\x81\x9f hg \xe3\x81\xae\xe3\x82\xb3\xe3\x83\x9e\xe3\x83\xb3\xe3\x83\x89\xe3\x81\xab\xe3\x82\x88\xe3\x82\x8b\xe5\xb1\xa5\xe6\xad\xb4\xe8\xa8\x98\xe9\x8c\xb2\xe3\x82\x82\xe3\x80\x81 \xe9\x80\x9a\xe5\xb8\xb8\xe3\x81\xa8\xe5\xa4\x89\xe3\x82\x8f\xe3\x82\x8a\xe3\x81\xaa\xe3\x81\x8f\xe6\xa9\x9f\xe8\x83\xbd\xe3\x81\x97\xe3\x81\xbe\xe3\x81\x99\xe3\x80\x82 git \xe5\xb7\xae\xe5\x88\x86\xe5\xbd\xa2\xe5\xbc\x8f\xe3\x81\xae\xe8\xa9\xb3\xe7\xb4\xb0\xe3\x81\xab\xe9\x96\xa2\xe3\x81\x97\xe3\x81\xa6\xe3\x81\xaf\xe3\x80\x81 'help diffs' \xe3\x82\x92\xe5\x8f\x82\xe7\x85\xa7\xe3\x81\x97\xe3\x81\xa6\xe3\x81\x8f\xe3\x81\xa0\xe3\x81\x95\xe3\x81\x84\xe3\x80\x82 (esc)
+  warning: please use " instead of ' for hg ... "..."