From 071fef7c351c4fc23696aa6db693411b78da2edb Mon Sep 17 00:00:00 2001 From: Gianluca Montecchi Date: Fri, 2 Oct 2009 00:08:33 +0200 Subject: Fixed the merge --- libbe/editor.py | 101 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) (limited to 'libbe/editor.py') diff --git a/libbe/editor.py b/libbe/editor.py index e69de29..93144b8 100644 --- a/libbe/editor.py +++ b/libbe/editor.py @@ -0,0 +1,101 @@ +# Bugs Everywhere, a distributed bugtracker +# Copyright (C) 2008-2009 W. Trevor King +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +import codecs +import locale +import os +import sys +import tempfile +import doctest + +default_encoding = sys.getfilesystemencoding() or locale.getpreferredencoding() + +comment_marker = u"== Anything below this line will be ignored\n" + +class CantFindEditor(Exception): + def __init__(self): + Exception.__init__(self, "Can't find editor to get string from") + +def editor_string(comment=None, encoding=None): + """Invokes the editor, and returns the user-produced text as a string + + >>> if "EDITOR" in os.environ: + ... del os.environ["EDITOR"] + >>> if "VISUAL" in os.environ: + ... del os.environ["VISUAL"] + >>> editor_string() + Traceback (most recent call last): + CantFindEditor: Can't find editor to get string from + >>> os.environ["EDITOR"] = "echo bar > " + >>> editor_string() + u'bar\\n' + >>> os.environ["VISUAL"] = "echo baz > " + >>> editor_string() + u'baz\\n' + >>> del os.environ["EDITOR"] + >>> del os.environ["VISUAL"] + """ + if encoding == None: + encoding = default_encoding + for name in ('VISUAL', 'EDITOR'): + try: + editor = os.environ[name] + break + except KeyError: + pass + else: + raise CantFindEditor() + fhandle, fname = tempfile.mkstemp() + try: + if comment is not None: + os.write(fhandle, '\n'+comment_string(comment)) + os.close(fhandle) + oldmtime = os.path.getmtime(fname) + os.system("%s %s" % (editor, fname)) + f = codecs.open(fname, "r", encoding) + output = trimmed_string(f.read()) + f.close() + if output.rstrip('\n') == "": + output = None + finally: + os.unlink(fname) + return output + + +def comment_string(comment): + """ + >>> comment_string('hello') == comment_marker+"hello" + True + """ + return comment_marker + comment + + +def trimmed_string(instring): + """ + >>> trimmed_string("hello\\n"+comment_marker) + u'hello\\n' + >>> trimmed_string("hi!\\n" + comment_string('Booga')) + u'hi!\\n' + """ + out = [] + for line in instring.splitlines(True): + if line.startswith(comment_marker): + break + out.append(line) + return ''.join(out) + +suite = doctest.DocTestSuite() -- cgit