Merge pull request #118 from MightyCreak/pylint
Extract Preferences and Resources in their own modules
This commit is contained in:
Creak
GitHub
commit
74ef6650a0
17
.pylintrc
17
.pylintrc
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@ -87,23 +87,24 @@ disable=raw-checker-failed,
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deprecated-pragma,
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deprecated-pragma,
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use-symbolic-message-instead,
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use-symbolic-message-instead,
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# temporary silenced messages
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# temporary silenced messages (ordered alphabetically)
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duplicate-code,
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fixme,
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import-error,
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invalid-name,
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invalid-name,
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missing-module-docstring,
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missing-class-docstring,
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missing-class-docstring,
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missing-function-docstring,
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missing-function-docstring,
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import-error,
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missing-module-docstring,
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no-self-use,
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no-self-use,
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too-few-public-methods,
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too-many-arguments,
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too-many-arguments,
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too-many-branches,
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too-many-branches,
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too-many-instance-attributes,
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too-many-locals,
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too-many-locals,
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too-many-statements,
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too-many-nested-blocks,
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too-many-nested-blocks,
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too-few-public-methods,
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too-many-statements,
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unused-argument,
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fixme,
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unnecessary-dict-index-lookup,
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unnecessary-dict-index-lookup,
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duplicate-code
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unused-argument
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# Enable the message, report, category or checker with the given id(s). You can
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# Enable the message, report, category or checker with the given id(s). You can
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# either give multiple identifier separated by comma (,) or put this option
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# either give multiple identifier separated by comma (,) or put this option
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@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
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- Added a flatpak job in the CI
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- Added a flatpak job in the CI
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### Changed
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### Changed
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- main.py slimmed down by about 1000 lines
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### Fixed
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### Fixed
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967
src/main.py
967
src/main.py
File diff suppressed because it is too large
Load Diff
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@ -33,6 +33,8 @@ configure_file(
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diffuse_sources = [
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diffuse_sources = [
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'__init__.py',
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'__init__.py',
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'main.py',
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'main.py',
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'preferences.py',
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'resources.py',
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'utils.py',
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'utils.py',
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]
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]
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@ -0,0 +1,479 @@
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# Diffuse: a graphical tool for merging and comparing text files.
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#
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# Copyright (C) 2019 Derrick Moser <derrick_moser@yahoo.com>
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# Copyright (C) 2021 Romain Failliot <romain.failliot@foolstep.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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import codecs
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import encodings
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import os
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import shlex
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import sys
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# pylint: disable=wrong-import-position
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import gi
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gi.require_version('Gtk', '3.0')
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from gi.repository import Gtk
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# pylint: enable=wrong-import-position
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from diffuse import utils
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from diffuse import constants
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# class to store preferences and construct a dialogue for manipulating them
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class Preferences:
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def __init__(self, path):
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self.bool_prefs = {}
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self.int_prefs = {}
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self.string_prefs = {}
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self.int_prefs_min = {}
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self.int_prefs_max = {}
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self.string_prefs_enums = {}
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# find available encodings
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self.encodings = sorted(set(encodings.aliases.aliases.values()))
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if utils.isWindows():
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svk_bin = 'svk.bat'
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else:
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svk_bin = 'svk'
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auto_detect_codecs = [ 'utf_8', 'utf_16', 'latin_1' ]
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e = utils.norm_encoding(sys.getfilesystemencoding())
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if e not in auto_detect_codecs:
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# insert after UTF-8 as the default encoding may prevent UTF-8 from
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# being tried
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auto_detect_codecs.insert(2, e)
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# self.template describes how preference dialogue layout
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#
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# this will be traversed later to build the preferences dialogue and
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# discover which preferences exist
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#
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# folders are described using:
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# [ 'FolderSet', label1, template1, label2, template2, ... ]
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# lists are described using:
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# [ 'List', template1, template2, template3, ... ]
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# individual preferences are described using one of the following
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# depending upon its type and the desired widget:
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# [ 'Boolean', name, default, label ]
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# [ 'Integer', name, default, label ]
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# [ 'String', name, default, label ]
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# [ 'File', name, default, label ]
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# [ 'Font', name, default, label ]
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# pylint: disable=line-too-long
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self.template = [
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'FolderSet',
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_('Display'),
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[ 'List',
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[ 'Font', 'display_font', 'Monospace 10', _('Font') ],
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[ 'Integer', 'display_tab_width', 8, _('Tab width'), 1, 1024 ],
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[ 'Boolean', 'display_show_right_margin', True, _('Show right margin') ],
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[ 'Integer', 'display_right_margin', 80, _('Right margin'), 1, 8192 ],
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[ 'Boolean', 'display_show_line_numbers', True, _('Show line numbers') ],
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[ 'Boolean', 'display_show_whitespace', False, _('Show white space characters') ],
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[ 'Boolean', 'display_ignore_case', False, _('Ignore case differences') ],
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[ 'Boolean', 'display_ignore_whitespace', False, _('Ignore white space differences') ],
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[ 'Boolean', 'display_ignore_whitespace_changes', False, _('Ignore changes to white space') ],
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[ 'Boolean', 'display_ignore_blanklines', False, _('Ignore blank line differences') ],
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[ 'Boolean', 'display_ignore_endofline', False, _('Ignore end of line differences') ]
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],
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_('Alignment'),
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[ 'List',
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[ 'Boolean', 'align_ignore_case', False, _('Ignore case') ],
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[ 'Boolean', 'align_ignore_whitespace', True, _('Ignore white space') ],
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[ 'Boolean', 'align_ignore_whitespace_changes', False, _('Ignore changes to white space') ],
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[ 'Boolean', 'align_ignore_blanklines', False, _('Ignore blank lines') ],
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[ 'Boolean', 'align_ignore_endofline', True, _('Ignore end of line characters') ]
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],
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_('Editor'),
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[ 'List',
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[ 'Boolean', 'editor_auto_indent', True, _('Auto indent') ],
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[ 'Boolean', 'editor_expand_tabs', False, _('Expand tabs to spaces') ],
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[ 'Integer', 'editor_soft_tab_width', 8, _('Soft tab width'), 1, 1024 ]
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],
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_('Tabs'),
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[ 'List',
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[ 'Integer', 'tabs_default_panes', 2, _('Default panes'), 2, 16 ],
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[ 'Boolean', 'tabs_always_show', False, _('Always show the tab bar') ],
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[ 'Boolean', 'tabs_warn_before_quit', True, _('Warn me when closing a tab will quit %s') % constants.APP_NAME ]
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],
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_('Regional Settings'),
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[ 'List',
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[ 'Encoding', 'encoding_default_codec', sys.getfilesystemencoding(), _('Default codec') ],
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[ 'String', 'encoding_auto_detect_codecs', ' '.join(auto_detect_codecs), _('Order of codecs used to identify encoding') ]
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],
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]
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# pylint: disable=line-too-long
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# conditions used to determine if a preference should be greyed out
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self.disable_when = {
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'display_right_margin': ('display_show_right_margin', False),
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'display_ignore_whitespace_changes': ('display_ignore_whitespace', True),
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'display_ignore_blanklines': ('display_ignore_whitespace', True),
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'display_ignore_endofline': ('display_ignore_whitespace', True),
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'align_ignore_whitespace_changes': ('align_ignore_whitespace', True),
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'align_ignore_blanklines': ('align_ignore_whitespace', True),
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'align_ignore_endofline': ('align_ignore_whitespace', True)
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}
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if utils.isWindows():
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root = os.environ.get('SYSTEMDRIVE', None)
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if root is None:
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root = 'C:\\'
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elif not root.endswith('\\'):
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root += '\\'
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self.template.extend([
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_('Cygwin'),
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[ 'List',
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[ 'File', 'cygwin_root', os.path.join(root, 'cygwin'), _('Root directory') ],
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[ 'String', 'cygwin_cygdrive_prefix', '/cygdrive', _('Cygdrive prefix') ]
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]
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])
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# create template for Version Control options
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vcs = [ ('bzr', 'Bazaar', 'bzr'),
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('cvs', 'CVS', 'cvs'),
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('darcs', 'Darcs', 'darcs'),
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('git', 'Git', 'git'),
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('hg', 'Mercurial', 'hg'),
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('mtn', 'Monotone', 'mtn'),
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('rcs', 'RCS', None),
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('svn', 'Subversion', 'svn'),
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('svk', 'SVK', svk_bin) ]
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vcs_template = [
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'List', [
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'String',
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'vcs_search_order',
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'bzr cvs darcs git hg mtn rcs svn svk',
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_('Version control system search order')
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]
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]
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vcs_folders_template = [ 'FolderSet' ]
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for key, name, cmd in vcs:
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temp = [ 'List' ]
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if key == 'rcs':
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# RCS uses multiple commands
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temp.extend([ [ 'File', key + '_bin_co', 'co', _('"co" command') ],
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[ 'File', key + '_bin_rlog', 'rlog', _('"rlog" command') ] ])
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else:
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temp.extend([ [ 'File', key + '_bin', cmd, _('Command') ] ])
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if utils.isWindows():
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temp.append([
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'Boolean',
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key + '_bash',
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False,
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_('Launch from a Bash login shell')
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])
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if key != 'git':
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temp.append([
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'Boolean',
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key + '_cygwin',
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False,
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_('Update paths for Cygwin')
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])
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vcs_folders_template.extend([ name, temp ])
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vcs_template.append(vcs_folders_template)
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self.template.extend([ _('Version Control'), vcs_template ])
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self._initFromTemplate(self.template)
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self.default_bool_prefs = self.bool_prefs.copy()
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self.default_int_prefs = self.int_prefs.copy()
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self.default_string_prefs = self.string_prefs.copy()
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# load the user's preferences
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self.path = path
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if os.path.isfile(self.path):
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try:
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with open(self.path, 'r', encoding='utf-8') as f:
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ss = utils.readconfiglines(f)
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for j, s in enumerate(ss):
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try:
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a = shlex.split(s, True)
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if len(a) > 0:
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p = a[0]
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if len(a) == 2 and p in self.bool_prefs:
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self.bool_prefs[p] = (a[1] == 'True')
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elif len(a) == 2 and p in self.int_prefs:
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self.int_prefs[p] = max(self.int_prefs_min[p], min(int(a[1]), self.int_prefs_max[p]))
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elif len(a) == 2 and p in self.string_prefs:
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self.string_prefs[p] = a[1]
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else:
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raise ValueError()
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except ValueError:
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# this may happen if the prefs were written by a
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# different version -- don't bother the user
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utils.logDebug(f'Error processing line {j + 1} of {self.path}.')
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except IOError:
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# bad $HOME value? -- don't bother the user
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utils.logDebug(f'Error reading {self.path}.')
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# recursively traverses 'template' to discover the preferences and
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# initialise their default values in self.bool_prefs, self.int_prefs, and
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# self.string_prefs
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def _initFromTemplate(self, template):
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if template[0] == 'FolderSet' or template[0] == 'List':
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|
i = 1
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|
while i < len(template):
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|
if template[0] == 'FolderSet':
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i += 1
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self._initFromTemplate(template[i])
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i += 1
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elif template[0] == 'Boolean':
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self.bool_prefs[template[1]] = template[2]
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elif template[0] == 'Integer':
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self.int_prefs[template[1]] = template[2]
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self.int_prefs_min[template[1]] = template[4]
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self.int_prefs_max[template[1]] = template[5]
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elif template[0] in [ 'String', 'File', 'Font', 'Encoding' ]:
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self.string_prefs[template[1]] = template[2]
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# callback used when a preference is toggled
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def _toggled_cb(self, widget, widgets, name):
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# disable any preferences than are no longer relevant
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for k, v in self.disable_when.items():
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p, t = v
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if p == name:
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|
widgets[k].set_sensitive(widgets[p].get_active() != t)
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# display the dialogue and update the preference values if the accept
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# button was pressed
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def runDialog(self, parent):
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|
dialog = Gtk.Dialog(_('Preferences'), parent=parent, destroy_with_parent=True)
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dialog.add_button(Gtk.STOCK_CANCEL, Gtk.ResponseType.REJECT)
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||||||
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dialog.add_button(Gtk.STOCK_OK, Gtk.ResponseType.OK)
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widgets = {}
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w = self._buildPrefsDialog(parent, widgets, self.template)
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# disable any preferences than are not relevant
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for k, v in self.disable_when.items():
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p, t = v
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if widgets[p].get_active() == t:
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widgets[k].set_sensitive(False)
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dialog.vbox.add(w) # pylint: disable=no-member
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w.show()
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accept = (dialog.run() == Gtk.ResponseType.OK) # pylint: disable=no-member
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if accept:
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for k in self.bool_prefs:
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||||||
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self.bool_prefs[k] = widgets[k].get_active()
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for k in self.int_prefs:
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self.int_prefs[k] = widgets[k].get_value_as_int()
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for k in self.string_prefs:
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self.string_prefs[k] = utils.null_to_empty(widgets[k].get_text())
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|
try:
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ss = []
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for k, v in self.bool_prefs.items():
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||||||
|
if v != self.default_bool_prefs[k]:
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||||||
|
ss.append(f'{k} {v}\n')
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for k, v in self.int_prefs.items():
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if v != self.default_int_prefs[k]:
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ss.append(f'{k} {v}\n')
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||||||
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for k, v in self.string_prefs.items():
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||||||
|
if v != self.default_string_prefs[k]:
|
||||||
|
v_escaped = v.replace('\\', '\\\\').replace('"', '\\"')
|
||||||
|
ss.append(f'{k} "{v_escaped}"\n')
|
||||||
|
ss.sort()
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||||||
|
with open(self.path, 'w', encoding='utf-8') as f:
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||||||
|
# pylint: disable-next=line-too-long
|
||||||
|
f.write(f'# This prefs file was generated by {constants.APP_NAME} {constants.VERSION}.\n\n')
|
||||||
|
for s in ss:
|
||||||
|
f.write(s)
|
||||||
|
except IOError:
|
||||||
|
utils.logErrorAndDialog(_('Error writing %s.') % (self.path, ), parent)
|
||||||
|
dialog.destroy()
|
||||||
|
return accept
|
||||||
|
|
||||||
|
# recursively traverses 'template' to build the preferences dialogue
|
||||||
|
# and the individual preference widgets into 'widgets' so their value
|
||||||
|
# can be easily queried by the caller
|
||||||
|
def _buildPrefsDialog(self, parent, widgets, template):
|
||||||
|
tpl_section = template[0]
|
||||||
|
if tpl_section == 'FolderSet':
|
||||||
|
notebook = Gtk.Notebook.new()
|
||||||
|
notebook.set_border_width(10)
|
||||||
|
i = 1
|
||||||
|
while i < len(template):
|
||||||
|
label = Gtk.Label.new(template[i])
|
||||||
|
i += 1
|
||||||
|
w = self._buildPrefsDialog(parent, widgets, template[i])
|
||||||
|
i += 1
|
||||||
|
notebook.append_page(w, label)
|
||||||
|
w.show()
|
||||||
|
label.show()
|
||||||
|
return notebook
|
||||||
|
|
||||||
|
table = Gtk.Grid.new()
|
||||||
|
table.set_border_width(10)
|
||||||
|
for i, tpl in enumerate(template[1:]):
|
||||||
|
tpl_section = tpl[0]
|
||||||
|
if tpl_section == 'FolderSet':
|
||||||
|
w = self._buildPrefsDialog(parent, widgets, tpl)
|
||||||
|
table.attach(w, 0, i, 2, 1)
|
||||||
|
w.show()
|
||||||
|
elif tpl_section == 'Boolean':
|
||||||
|
button = Gtk.CheckButton.new_with_mnemonic(tpl[3])
|
||||||
|
button.set_active(self.bool_prefs[tpl[1]])
|
||||||
|
widgets[tpl[1]] = button
|
||||||
|
table.attach(button, 1, i, 1, 1)
|
||||||
|
button.connect('toggled', self._toggled_cb, widgets, tpl[1])
|
||||||
|
button.show()
|
||||||
|
else:
|
||||||
|
label = Gtk.Label.new(tpl[3] + ': ')
|
||||||
|
label.set_xalign(1.0)
|
||||||
|
label.set_yalign(0.5)
|
||||||
|
table.attach(label, 0, i, 1, 1)
|
||||||
|
label.show()
|
||||||
|
if tpl[0] in [ 'Font', 'Integer' ]:
|
||||||
|
entry = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, 0)
|
||||||
|
if tpl[0] == 'Font':
|
||||||
|
button = _FontButton()
|
||||||
|
button.set_font(self.string_prefs[tpl[1]])
|
||||||
|
else:
|
||||||
|
button = Gtk.SpinButton.new(
|
||||||
|
Gtk.Adjustment.new(self.int_prefs[tpl[1]], tpl[4], tpl[5], 1, 0, 0),
|
||||||
|
1.0,
|
||||||
|
0)
|
||||||
|
widgets[tpl[1]] = button
|
||||||
|
entry.pack_start(button, False, False, 0)
|
||||||
|
button.show()
|
||||||
|
else:
|
||||||
|
if tpl[0] == 'Encoding':
|
||||||
|
entry = utils.EncodingMenu(self)
|
||||||
|
entry.set_text(tpl[3])
|
||||||
|
elif tpl[0] == 'File':
|
||||||
|
entry = _FileEntry(parent, tpl[3])
|
||||||
|
else:
|
||||||
|
entry = Gtk.Entry.new()
|
||||||
|
widgets[tpl[1]] = entry
|
||||||
|
entry.set_text(self.string_prefs[tpl[1]])
|
||||||
|
table.attach(entry, 1, i, 1, 1)
|
||||||
|
entry.show()
|
||||||
|
table.show()
|
||||||
|
return table
|
||||||
|
|
||||||
|
# get/set methods to manipulate the preference values
|
||||||
|
def getBool(self, name):
|
||||||
|
return self.bool_prefs[name]
|
||||||
|
|
||||||
|
def setBool(self, name, value):
|
||||||
|
self.bool_prefs[name] = value
|
||||||
|
|
||||||
|
def getInt(self, name):
|
||||||
|
return self.int_prefs[name]
|
||||||
|
|
||||||
|
def getString(self, name):
|
||||||
|
return self.string_prefs[name]
|
||||||
|
|
||||||
|
def setString(self, name, value):
|
||||||
|
self.string_prefs[name] = value
|
||||||
|
|
||||||
|
def getEncodings(self):
|
||||||
|
return self.encodings
|
||||||
|
|
||||||
|
def _getDefaultEncodings(self):
|
||||||
|
return self.string_prefs['encoding_auto_detect_codecs'].split()
|
||||||
|
|
||||||
|
def getDefaultEncoding(self):
|
||||||
|
return self.string_prefs['encoding_default_codec']
|
||||||
|
|
||||||
|
# attempt to convert a string to unicode from an unknown encoding
|
||||||
|
def convertToUnicode(self, s):
|
||||||
|
# a BOM is required for autodetecting UTF16 and UTF32
|
||||||
|
magic = { 'utf16': [ codecs.BOM_UTF16_BE, codecs.BOM_UTF16_LE ],
|
||||||
|
'utf32': [ codecs.BOM_UTF32_BE, codecs.BOM_UTF32_LE ] }
|
||||||
|
for encoding in self._getDefaultEncodings():
|
||||||
|
try:
|
||||||
|
encoding = encoding.lower().replace('-', '').replace('_', '')
|
||||||
|
for m in magic.get(encoding, [ b'' ]):
|
||||||
|
if s.startswith(m):
|
||||||
|
break
|
||||||
|
else:
|
||||||
|
continue
|
||||||
|
return str(s, encoding=encoding), encoding
|
||||||
|
except (UnicodeDecodeError, LookupError):
|
||||||
|
pass
|
||||||
|
return ''.join([ chr(ord(c)) for c in s ]), None
|
||||||
|
|
||||||
|
# cygwin and native applications can be used on windows, use this method
|
||||||
|
# to convert a path to the usual form expected on sys.platform
|
||||||
|
def convertToNativePath(self, s):
|
||||||
|
if utils.isWindows() and s.find('/') >= 0:
|
||||||
|
# treat as a cygwin path
|
||||||
|
s = s.replace(os.sep, '/')
|
||||||
|
# convert to a Windows native style path
|
||||||
|
p = [ a for a in s.split('/') if a != '' ]
|
||||||
|
if s.startswith('//'):
|
||||||
|
p[:0] = [ '', '' ]
|
||||||
|
elif s.startswith('/'):
|
||||||
|
pr = [ a for a in self.getString('cygwin_cygdrive_prefix').split('/') if a != '' ]
|
||||||
|
n = len(pr)
|
||||||
|
if len(p) > n and len(p[n]) == 1 and p[:n] == pr:
|
||||||
|
# path starts with cygdrive prefix
|
||||||
|
p[:n + 1] = [ p[n] + ':' ]
|
||||||
|
else:
|
||||||
|
# full path
|
||||||
|
p[:0] = [ a for a in self.getString('cygwin_root').split(os.sep) if a != '' ]
|
||||||
|
# add trailing slash
|
||||||
|
if p[-1] != '' and s.endswith('/'):
|
||||||
|
p.append('')
|
||||||
|
s = os.sep.join(p)
|
||||||
|
return s
|
||||||
|
|
||||||
|
# adaptor class to allow a Gtk.FontButton to be read like a Gtk.Entry
|
||||||
|
class _FontButton(Gtk.FontButton):
|
||||||
|
def __init__(self):
|
||||||
|
Gtk.FontButton.__init__(self)
|
||||||
|
|
||||||
|
def get_text(self):
|
||||||
|
# pylint: disable=no-member
|
||||||
|
return self.get_font_name()
|
||||||
|
|
||||||
|
# text entry widget with a button to help pick file names
|
||||||
|
class _FileEntry(Gtk.Box):
|
||||||
|
def __init__(self, parent, title):
|
||||||
|
# pylint: disable=no-member
|
||||||
|
Gtk.Box.__init__(self, orientation=Gtk.Orientation.HORIZONTAL)
|
||||||
|
self.toplevel = parent
|
||||||
|
self.title = title
|
||||||
|
self.entry = entry = Gtk.Entry.new()
|
||||||
|
self.pack_start(entry, True, True, 0)
|
||||||
|
entry.show()
|
||||||
|
button = Gtk.Button.new()
|
||||||
|
image = Gtk.Image.new()
|
||||||
|
image.set_from_stock(Gtk.STOCK_OPEN, Gtk.IconSize.MENU)
|
||||||
|
button.add(image)
|
||||||
|
image.show()
|
||||||
|
button.connect('clicked', self.chooseFile)
|
||||||
|
self.pack_start(button, False, False, 0)
|
||||||
|
button.show()
|
||||||
|
|
||||||
|
# action performed when the pick file button is pressed
|
||||||
|
def chooseFile(self, widget):
|
||||||
|
# pylint: disable=no-member
|
||||||
|
dialog = Gtk.FileChooserDialog(
|
||||||
|
self.title,
|
||||||
|
self.toplevel,
|
||||||
|
Gtk.FileChooserAction.OPEN,
|
||||||
|
(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL, Gtk.STOCK_OPEN, Gtk.ResponseType.OK))
|
||||||
|
dialog.set_current_folder(os.path.realpath(os.curdir))
|
||||||
|
if dialog.run() == Gtk.ResponseType.OK:
|
||||||
|
self.entry.set_text(dialog.get_filename())
|
||||||
|
dialog.destroy()
|
||||||
|
|
||||||
|
def set_text(self, s):
|
||||||
|
self.entry.set_text(s)
|
||||||
|
|
||||||
|
def get_text(self):
|
||||||
|
return self.entry.get_text()
|
||||||
|
|
@ -0,0 +1,537 @@
|
||||||
|
# Diffuse: a graphical tool for merging and comparing text files.
|
||||||
|
#
|
||||||
|
# Copyright (C) 2019 Derrick Moser <derrick_moser@yahoo.com>
|
||||||
|
# Copyright (C) 2021 Romain Failliot <romain.failliot@foolstep.com>
|
||||||
|
#
|
||||||
|
# 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.
|
||||||
|
|
||||||
|
# This class to hold all customisable behaviour not exposed in the preferences
|
||||||
|
# dialogue: hotkey assignment, colours, syntax highlighting, etc.
|
||||||
|
# Syntax highlighting is implemented in supporting '*.syntax' files normally
|
||||||
|
# read from the system wide initialisation file '/etc/diffuserc'.
|
||||||
|
# The personal initialisation file '~/diffuse/diffuserc' can be used to change
|
||||||
|
# default behaviour.
|
||||||
|
|
||||||
|
import glob
|
||||||
|
import os
|
||||||
|
import re
|
||||||
|
import shlex
|
||||||
|
|
||||||
|
# pylint: disable=wrong-import-position
|
||||||
|
import gi
|
||||||
|
gi.require_version('Gdk', '3.0')
|
||||||
|
from gi.repository import Gdk
|
||||||
|
# pylint: enable=wrong-import-position
|
||||||
|
|
||||||
|
from diffuse import utils
|
||||||
|
|
||||||
|
class Resources:
|
||||||
|
def __init__(self):
|
||||||
|
# default keybindings
|
||||||
|
self.keybindings = {}
|
||||||
|
self.keybindings_lookup = {}
|
||||||
|
set_binding = self.setKeyBinding
|
||||||
|
set_binding('menu', 'open_file', 'Ctrl+o')
|
||||||
|
set_binding('menu', 'open_file_in_new_tab', 'Ctrl+t')
|
||||||
|
set_binding('menu', 'open_modified_files', 'Shift+Ctrl+O')
|
||||||
|
set_binding('menu', 'open_commit', 'Shift+Ctrl+T')
|
||||||
|
set_binding('menu', 'reload_file', 'Shift+Ctrl+R')
|
||||||
|
set_binding('menu', 'save_file', 'Ctrl+s')
|
||||||
|
set_binding('menu', 'save_file_as', 'Shift+Ctrl+A')
|
||||||
|
set_binding('menu', 'save_all', 'Shift+Ctrl+S')
|
||||||
|
set_binding('menu', 'new_2_way_file_merge', 'Ctrl+2')
|
||||||
|
set_binding('menu', 'new_3_way_file_merge', 'Ctrl+3')
|
||||||
|
set_binding('menu', 'new_n_way_file_merge', 'Ctrl+4')
|
||||||
|
set_binding('menu', 'close_tab', 'Ctrl+w')
|
||||||
|
set_binding('menu', 'undo_close_tab', 'Shift+Ctrl+W')
|
||||||
|
set_binding('menu', 'quit', 'Ctrl+q')
|
||||||
|
set_binding('menu', 'undo', 'Ctrl+z')
|
||||||
|
set_binding('menu', 'redo', 'Shift+Ctrl+Z')
|
||||||
|
set_binding('menu', 'cut', 'Ctrl+x')
|
||||||
|
set_binding('menu', 'copy', 'Ctrl+c')
|
||||||
|
set_binding('menu', 'paste', 'Ctrl+v')
|
||||||
|
set_binding('menu', 'select_all', 'Ctrl+a')
|
||||||
|
set_binding('menu', 'clear_edits', 'Ctrl+r')
|
||||||
|
set_binding('menu', 'dismiss_all_edits', 'Ctrl+d')
|
||||||
|
set_binding('menu', 'find', 'Ctrl+f')
|
||||||
|
set_binding('menu', 'find_next', 'Ctrl+g')
|
||||||
|
set_binding('menu', 'find_previous', 'Shift+Ctrl+G')
|
||||||
|
set_binding('menu', 'go_to_line', 'Shift+Ctrl+L')
|
||||||
|
set_binding('menu', 'realign_all', 'Ctrl+l')
|
||||||
|
set_binding('menu', 'isolate', 'Ctrl+i')
|
||||||
|
set_binding('menu', 'first_difference', 'Shift+Ctrl+Up')
|
||||||
|
set_binding('menu', 'previous_difference', 'Ctrl+Up')
|
||||||
|
set_binding('menu', 'next_difference', 'Ctrl+Down')
|
||||||
|
set_binding('menu', 'last_difference', 'Shift+Ctrl+Down')
|
||||||
|
set_binding('menu', 'first_tab', 'Shift+Ctrl+Page_Up')
|
||||||
|
set_binding('menu', 'previous_tab', 'Ctrl+Page_Up')
|
||||||
|
set_binding('menu', 'next_tab', 'Ctrl+Page_Down')
|
||||||
|
set_binding('menu', 'last_tab', 'Shift+Ctrl+Page_Down')
|
||||||
|
set_binding('menu', 'shift_pane_right', 'Shift+Ctrl+parenright')
|
||||||
|
set_binding('menu', 'shift_pane_left', 'Shift+Ctrl+parenleft')
|
||||||
|
set_binding('menu', 'convert_to_upper_case', 'Ctrl+u')
|
||||||
|
set_binding('menu', 'convert_to_lower_case', 'Shift+Ctrl+U')
|
||||||
|
set_binding('menu', 'sort_lines_in_ascending_order', 'Ctrl+y')
|
||||||
|
set_binding('menu', 'sort_lines_in_descending_order', 'Shift+Ctrl+Y')
|
||||||
|
set_binding('menu', 'remove_trailing_white_space', 'Ctrl+k')
|
||||||
|
set_binding('menu', 'convert_tabs_to_spaces', 'Ctrl+b')
|
||||||
|
set_binding('menu', 'convert_leading_spaces_to_tabs', 'Shift+Ctrl+B')
|
||||||
|
set_binding('menu', 'increase_indenting', 'Shift+Ctrl+greater')
|
||||||
|
set_binding('menu', 'decrease_indenting', 'Shift+Ctrl+less')
|
||||||
|
set_binding('menu', 'convert_to_dos', 'Shift+Ctrl+E')
|
||||||
|
set_binding('menu', 'convert_to_mac', 'Shift+Ctrl+C')
|
||||||
|
set_binding('menu', 'convert_to_unix', 'Ctrl+e')
|
||||||
|
set_binding('menu', 'copy_selection_right', 'Shift+Ctrl+Right')
|
||||||
|
set_binding('menu', 'copy_selection_left', 'Shift+Ctrl+Left')
|
||||||
|
set_binding('menu', 'copy_left_into_selection', 'Ctrl+Right')
|
||||||
|
set_binding('menu', 'copy_right_into_selection', 'Ctrl+Left')
|
||||||
|
set_binding('menu', 'merge_from_left_then_right', 'Ctrl+m')
|
||||||
|
set_binding('menu', 'merge_from_right_then_left', 'Shift+Ctrl+M')
|
||||||
|
set_binding('menu', 'help_contents', 'F1')
|
||||||
|
set_binding('line_mode', 'enter_align_mode', 'space')
|
||||||
|
set_binding('line_mode', 'enter_character_mode', 'Return')
|
||||||
|
set_binding('line_mode', 'enter_character_mode', 'KP_Enter')
|
||||||
|
set_binding('line_mode', 'first_line', 'Home')
|
||||||
|
set_binding('line_mode', 'first_line', 'g')
|
||||||
|
set_binding('line_mode', 'extend_first_line', 'Shift+Home')
|
||||||
|
set_binding('line_mode', 'last_line', 'End')
|
||||||
|
set_binding('line_mode', 'last_line', 'Shift+G')
|
||||||
|
set_binding('line_mode', 'extend_last_line', 'Shift+End')
|
||||||
|
set_binding('line_mode', 'up', 'Up')
|
||||||
|
set_binding('line_mode', 'up', 'k')
|
||||||
|
set_binding('line_mode', 'extend_up', 'Shift+Up')
|
||||||
|
set_binding('line_mode', 'extend_up', 'Shift+K')
|
||||||
|
set_binding('line_mode', 'down', 'Down')
|
||||||
|
set_binding('line_mode', 'down', 'j')
|
||||||
|
set_binding('line_mode', 'extend_down', 'Shift+Down')
|
||||||
|
set_binding('line_mode', 'extend_down', 'Shift+J')
|
||||||
|
set_binding('line_mode', 'left', 'Left')
|
||||||
|
set_binding('line_mode', 'left', 'h')
|
||||||
|
set_binding('line_mode', 'extend_left', 'Shift+Left')
|
||||||
|
set_binding('line_mode', 'right', 'Right')
|
||||||
|
set_binding('line_mode', 'right', 'l')
|
||||||
|
set_binding('line_mode', 'extend_right', 'Shift+Right')
|
||||||
|
set_binding('line_mode', 'page_up', 'Page_Up')
|
||||||
|
set_binding('line_mode', 'page_up', 'Ctrl+u')
|
||||||
|
set_binding('line_mode', 'extend_page_up', 'Shift+Page_Up')
|
||||||
|
set_binding('line_mode', 'extend_page_up', 'Shift+Ctrl+U')
|
||||||
|
set_binding('line_mode', 'page_down', 'Page_Down')
|
||||||
|
set_binding('line_mode', 'page_down', 'Ctrl+d')
|
||||||
|
set_binding('line_mode', 'extend_page_down', 'Shift+Page_Down')
|
||||||
|
set_binding('line_mode', 'extend_page_down', 'Shift+Ctrl+D')
|
||||||
|
set_binding('line_mode', 'delete_text', 'BackSpace')
|
||||||
|
set_binding('line_mode', 'delete_text', 'Delete')
|
||||||
|
set_binding('line_mode', 'delete_text', 'x')
|
||||||
|
set_binding('line_mode', 'clear_edits', 'r')
|
||||||
|
set_binding('line_mode', 'isolate', 'i')
|
||||||
|
set_binding('line_mode', 'first_difference', 'Ctrl+Home')
|
||||||
|
set_binding('line_mode', 'first_difference', 'Shift+P')
|
||||||
|
set_binding('line_mode', 'previous_difference', 'p')
|
||||||
|
set_binding('line_mode', 'next_difference', 'n')
|
||||||
|
set_binding('line_mode', 'last_difference', 'Ctrl+End')
|
||||||
|
set_binding('line_mode', 'last_difference', 'Shift+N')
|
||||||
|
#set_binding('line_mode', 'copy_selection_right', 'Shift+L')
|
||||||
|
#set_binding('line_mode', 'copy_selection_left', 'Shift+H')
|
||||||
|
set_binding('line_mode', 'copy_left_into_selection', 'Shift+L')
|
||||||
|
set_binding('line_mode', 'copy_right_into_selection', 'Shift+H')
|
||||||
|
set_binding('line_mode', 'merge_from_left_then_right', 'm')
|
||||||
|
set_binding('line_mode', 'merge_from_right_then_left', 'Shift+M')
|
||||||
|
set_binding('align_mode', 'enter_line_mode', 'Escape')
|
||||||
|
set_binding('align_mode', 'align', 'space')
|
||||||
|
set_binding('align_mode', 'enter_character_mode', 'Return')
|
||||||
|
set_binding('align_mode', 'enter_character_mode', 'KP_Enter')
|
||||||
|
set_binding('align_mode', 'first_line', 'g')
|
||||||
|
set_binding('align_mode', 'last_line', 'Shift+G')
|
||||||
|
set_binding('align_mode', 'up', 'Up')
|
||||||
|
set_binding('align_mode', 'up', 'k')
|
||||||
|
set_binding('align_mode', 'down', 'Down')
|
||||||
|
set_binding('align_mode', 'down', 'j')
|
||||||
|
set_binding('align_mode', 'left', 'Left')
|
||||||
|
set_binding('align_mode', 'left', 'h')
|
||||||
|
set_binding('align_mode', 'right', 'Right')
|
||||||
|
set_binding('align_mode', 'right', 'l')
|
||||||
|
set_binding('align_mode', 'page_up', 'Page_Up')
|
||||||
|
set_binding('align_mode', 'page_up', 'Ctrl+u')
|
||||||
|
set_binding('align_mode', 'page_down', 'Page_Down')
|
||||||
|
set_binding('align_mode', 'page_down', 'Ctrl+d')
|
||||||
|
set_binding('character_mode', 'enter_line_mode', 'Escape')
|
||||||
|
|
||||||
|
# default colours
|
||||||
|
self.colours = {
|
||||||
|
'alignment' : _Colour(1.0, 1.0, 0.0),
|
||||||
|
'character_selection' : _Colour(0.7, 0.7, 1.0),
|
||||||
|
'cursor' : _Colour(0.0, 0.0, 0.0),
|
||||||
|
'difference_1' : _Colour(1.0, 0.625, 0.625),
|
||||||
|
'difference_2' : _Colour(0.85, 0.625, 0.775),
|
||||||
|
'difference_3' : _Colour(0.85, 0.775, 0.625),
|
||||||
|
'hatch' : _Colour(0.8, 0.8, 0.8),
|
||||||
|
'line_number' : _Colour(0.0, 0.0, 0.0),
|
||||||
|
'line_number_background' : _Colour(0.75, 0.75, 0.75),
|
||||||
|
'line_selection' : _Colour(0.7, 0.7, 1.0),
|
||||||
|
'map_background' : _Colour(0.6, 0.6, 0.6),
|
||||||
|
'margin' : _Colour(0.8, 0.8, 0.8),
|
||||||
|
'edited' : _Colour(0.5, 1.0, 0.5),
|
||||||
|
'preedit' : _Colour(0.0, 0.0, 0.0),
|
||||||
|
'text' : _Colour(0.0, 0.0, 0.0),
|
||||||
|
'text_background' : _Colour(1.0, 1.0, 1.0) }
|
||||||
|
|
||||||
|
# default floats
|
||||||
|
self.floats = {
|
||||||
|
'alignment_opacity' : 1.0,
|
||||||
|
'character_difference_opacity' : 0.4,
|
||||||
|
'character_selection_opacity' : 0.4,
|
||||||
|
'edited_opacity' : 0.4,
|
||||||
|
'line_difference_opacity' : 0.3,
|
||||||
|
'line_selection_opacity' : 0.4 }
|
||||||
|
|
||||||
|
# default strings
|
||||||
|
self.strings = {}
|
||||||
|
|
||||||
|
# syntax highlighting support
|
||||||
|
self.syntaxes = {}
|
||||||
|
self.syntax_file_patterns = {}
|
||||||
|
self.syntax_magic_patterns = {}
|
||||||
|
self.current_syntax = None
|
||||||
|
|
||||||
|
# list of imported resources files (we only import each file once)
|
||||||
|
self.resource_files = set()
|
||||||
|
|
||||||
|
# special string resources
|
||||||
|
self.setDifferenceColours('difference_1 difference_2 difference_3')
|
||||||
|
|
||||||
|
# keyboard action processing
|
||||||
|
def setKeyBinding(self, ctx, s, v):
|
||||||
|
action_tuple = (ctx, s)
|
||||||
|
modifiers = Gdk.ModifierType(0)
|
||||||
|
key = None
|
||||||
|
for token in v.split('+'):
|
||||||
|
if token == 'Shift':
|
||||||
|
modifiers |= Gdk.ModifierType.SHIFT_MASK
|
||||||
|
elif token == 'Ctrl':
|
||||||
|
modifiers |= Gdk.ModifierType.CONTROL_MASK
|
||||||
|
elif token == 'Alt':
|
||||||
|
modifiers |= Gdk.ModifierType.MOD1_MASK # pylint: disable=no-member
|
||||||
|
elif len(token) == 0 or token[0] == '_':
|
||||||
|
raise ValueError()
|
||||||
|
else:
|
||||||
|
token = 'KEY_' + token
|
||||||
|
if not hasattr(Gdk, token):
|
||||||
|
raise ValueError()
|
||||||
|
key = getattr(Gdk, token)
|
||||||
|
if key is None:
|
||||||
|
raise ValueError()
|
||||||
|
key_tuple = (ctx, (key, modifiers))
|
||||||
|
|
||||||
|
# remove any existing binding
|
||||||
|
if key_tuple in self.keybindings_lookup:
|
||||||
|
self._removeKeyBinding(key_tuple)
|
||||||
|
|
||||||
|
# ensure we have a set to hold this action
|
||||||
|
if action_tuple not in self.keybindings:
|
||||||
|
self.keybindings[action_tuple] = {}
|
||||||
|
bindings = self.keybindings[action_tuple]
|
||||||
|
|
||||||
|
# menu items can only have one binding
|
||||||
|
if ctx == 'menu':
|
||||||
|
for k in bindings.keys():
|
||||||
|
self._removeKeyBinding(k)
|
||||||
|
|
||||||
|
# add the binding
|
||||||
|
bindings[key_tuple] = None
|
||||||
|
self.keybindings_lookup[key_tuple] = action_tuple
|
||||||
|
|
||||||
|
def _removeKeyBinding(self, key_tuple):
|
||||||
|
action_tuple = self.keybindings_lookup[key_tuple]
|
||||||
|
del self.keybindings_lookup[key_tuple]
|
||||||
|
del self.keybindings[action_tuple][key_tuple]
|
||||||
|
|
||||||
|
def getActionForKey(self, ctx, key, modifiers):
|
||||||
|
try:
|
||||||
|
return self.keybindings_lookup[(ctx, (key, modifiers))][1]
|
||||||
|
except KeyError:
|
||||||
|
return None
|
||||||
|
|
||||||
|
def getKeyBindings(self, ctx, s):
|
||||||
|
try:
|
||||||
|
return [ t for c, t in self.keybindings[(ctx, s)].keys() ]
|
||||||
|
except KeyError:
|
||||||
|
return []
|
||||||
|
|
||||||
|
# colours used for indicating differences
|
||||||
|
def setDifferenceColours(self, s):
|
||||||
|
colours = s.split()
|
||||||
|
if len(colours) > 0:
|
||||||
|
self.difference_colours = colours
|
||||||
|
|
||||||
|
def getDifferenceColour(self, i):
|
||||||
|
n = len(self.difference_colours)
|
||||||
|
return self.getColour(self.difference_colours[(i + n - 1) % n])
|
||||||
|
|
||||||
|
# colour resources
|
||||||
|
def getColour(self, symbol):
|
||||||
|
try:
|
||||||
|
return self.colours[symbol]
|
||||||
|
except KeyError:
|
||||||
|
utils.logDebug(f'Warning: unknown colour "{symbol}"')
|
||||||
|
self.colours[symbol] = v = _Colour(0.0, 0.0, 0.0)
|
||||||
|
return v
|
||||||
|
|
||||||
|
# float resources
|
||||||
|
def getFloat(self, symbol):
|
||||||
|
try:
|
||||||
|
return self.floats[symbol]
|
||||||
|
except KeyError:
|
||||||
|
utils.logDebug(f'Warning: unknown float "{symbol}"')
|
||||||
|
self.floats[symbol] = v = 0.5
|
||||||
|
return v
|
||||||
|
|
||||||
|
# string resources
|
||||||
|
def getString(self, symbol):
|
||||||
|
try:
|
||||||
|
return self.strings[symbol]
|
||||||
|
except KeyError:
|
||||||
|
utils.logDebug(f'Warning: unknown string "{symbol}"')
|
||||||
|
self.strings[symbol] = v = ''
|
||||||
|
return v
|
||||||
|
|
||||||
|
# syntax highlighting
|
||||||
|
def getSyntaxNames(self):
|
||||||
|
return list(self.syntaxes.keys())
|
||||||
|
|
||||||
|
def getSyntax(self, name):
|
||||||
|
return self.syntaxes.get(name, None)
|
||||||
|
|
||||||
|
def guessSyntaxForFile(self, name, ss):
|
||||||
|
name = os.path.basename(name)
|
||||||
|
for key, pattern in self.syntax_file_patterns.items():
|
||||||
|
if pattern.search(name):
|
||||||
|
return key
|
||||||
|
# fallback to analysing the first line of the file
|
||||||
|
if len(ss) > 0:
|
||||||
|
s = ss[0]
|
||||||
|
for key, pattern in self.syntax_magic_patterns.items():
|
||||||
|
if pattern.search(s):
|
||||||
|
return key
|
||||||
|
return None
|
||||||
|
|
||||||
|
# parse resource files
|
||||||
|
def parse(self, file_name):
|
||||||
|
# only process files once
|
||||||
|
if file_name in self.resource_files:
|
||||||
|
return
|
||||||
|
|
||||||
|
self.resource_files.add(file_name)
|
||||||
|
with open(file_name, 'r', encoding='utf-8') as f:
|
||||||
|
ss = utils.readconfiglines(f)
|
||||||
|
|
||||||
|
# FIXME: improve validation
|
||||||
|
for i, s in enumerate(ss):
|
||||||
|
args = shlex.split(s, True)
|
||||||
|
if len(args) == 0:
|
||||||
|
continue
|
||||||
|
|
||||||
|
try:
|
||||||
|
# eg. add Python syntax highlighting:
|
||||||
|
# import /usr/share/diffuse/syntax/python.syntax
|
||||||
|
if args[0] == 'import' and len(args) == 2:
|
||||||
|
path = os.path.expanduser(args[1])
|
||||||
|
# relative paths are relative to the parsed file
|
||||||
|
path = os.path.join(utils.globEscape(os.path.dirname(file_name)), path)
|
||||||
|
paths = glob.glob(path)
|
||||||
|
if len(paths) == 0:
|
||||||
|
paths = [ path ]
|
||||||
|
for path in paths:
|
||||||
|
# convert to absolute path so the location of
|
||||||
|
# any processing errors are reported with
|
||||||
|
# normalised file names
|
||||||
|
self.parse(os.path.abspath(path))
|
||||||
|
# eg. make Ctrl+o trigger the open_file menu item
|
||||||
|
# keybinding menu open_file Ctrl+o
|
||||||
|
elif args[0] == 'keybinding' and len(args) == 4:
|
||||||
|
self.setKeyBinding(args[1], args[2], args[3])
|
||||||
|
# eg. set the regular background colour to white
|
||||||
|
# colour text_background 1.0 1.0 1.0
|
||||||
|
elif args[0] in [ 'colour', 'color' ] and len(args) == 5:
|
||||||
|
self.colours[args[1]] = _Colour(float(args[2]), float(args[3]), float(args[4]))
|
||||||
|
# eg. set opacity of the line_selection colour
|
||||||
|
# float line_selection_opacity 0.4
|
||||||
|
elif args[0] == 'float' and len(args) == 3:
|
||||||
|
self.floats[args[1]] = float(args[2])
|
||||||
|
# eg. set the help browser
|
||||||
|
# string help_browser gnome-help
|
||||||
|
elif args[0] == 'string' and len(args) == 3:
|
||||||
|
self.strings[args[1]] = args[2]
|
||||||
|
if args[1] == 'difference_colours':
|
||||||
|
self.setDifferenceColours(args[2])
|
||||||
|
# eg. start a syntax specification for Python
|
||||||
|
# syntax Python normal text
|
||||||
|
# where 'normal' is the name of the default state and
|
||||||
|
# 'text' is the classification of all characters not
|
||||||
|
# explicitly matched by a syntax highlighting rule
|
||||||
|
elif args[0] == 'syntax' and (len(args) == 2 or len(args) == 4):
|
||||||
|
key = args[1]
|
||||||
|
if len(args) == 2:
|
||||||
|
# remove file pattern for a syntax specification
|
||||||
|
try:
|
||||||
|
del self.syntax_file_patterns[key]
|
||||||
|
except KeyError:
|
||||||
|
pass
|
||||||
|
# remove magic pattern for a syntax specification
|
||||||
|
try:
|
||||||
|
del self.syntax_magic_patterns[key]
|
||||||
|
except KeyError:
|
||||||
|
pass
|
||||||
|
# remove a syntax specification
|
||||||
|
self.current_syntax = None
|
||||||
|
try:
|
||||||
|
del self.syntaxes[key]
|
||||||
|
except KeyError:
|
||||||
|
pass
|
||||||
|
else:
|
||||||
|
self.current_syntax = _SyntaxParser(args[2], args[3])
|
||||||
|
self.syntaxes[key] = self.current_syntax
|
||||||
|
# eg. transition from state 'normal' to 'comment' when
|
||||||
|
# the pattern '#' is matched and classify the matched
|
||||||
|
# characters as 'python_comment'
|
||||||
|
# syntax_pattern normal comment python_comment '#'
|
||||||
|
elif (
|
||||||
|
args[0] == 'syntax_pattern' and
|
||||||
|
self.current_syntax is not None and
|
||||||
|
len(args) >= 5
|
||||||
|
):
|
||||||
|
flags = 0
|
||||||
|
for arg in args[5:]:
|
||||||
|
if arg == 'ignorecase':
|
||||||
|
flags |= re.IGNORECASE
|
||||||
|
else:
|
||||||
|
raise ValueError()
|
||||||
|
self.current_syntax.addPattern(
|
||||||
|
args[1],
|
||||||
|
args[2],
|
||||||
|
args[3],
|
||||||
|
re.compile(args[4], flags))
|
||||||
|
# eg. default to the Python syntax rules when viewing
|
||||||
|
# a file ending with '.py' or '.pyw'
|
||||||
|
# syntax_files Python '\.pyw?$'
|
||||||
|
elif args[0] == 'syntax_files' and (len(args) == 2 or len(args) == 3):
|
||||||
|
key = args[1]
|
||||||
|
if len(args) == 2:
|
||||||
|
# remove file pattern for a syntax specification
|
||||||
|
try:
|
||||||
|
del self.syntax_file_patterns[key]
|
||||||
|
except KeyError:
|
||||||
|
pass
|
||||||
|
else:
|
||||||
|
flags = 0
|
||||||
|
if utils.isWindows():
|
||||||
|
flags |= re.IGNORECASE
|
||||||
|
self.syntax_file_patterns[key] = re.compile(args[2], flags)
|
||||||
|
# eg. default to the Python syntax rules when viewing
|
||||||
|
# a files starting with patterns like #!/usr/bin/python
|
||||||
|
# syntax_magic Python '^#!/usr/bin/python$'
|
||||||
|
elif args[0] == 'syntax_magic' and len(args) > 1:
|
||||||
|
key = args[1]
|
||||||
|
if len(args) == 2:
|
||||||
|
# remove magic pattern for a syntax specification
|
||||||
|
try:
|
||||||
|
del self.syntax_magic_patterns[key]
|
||||||
|
except KeyError:
|
||||||
|
pass
|
||||||
|
else:
|
||||||
|
flags = 0
|
||||||
|
for arg in args[3:]:
|
||||||
|
if arg == 'ignorecase':
|
||||||
|
flags |= re.IGNORECASE
|
||||||
|
else:
|
||||||
|
raise ValueError()
|
||||||
|
self.syntax_magic_patterns[key] = re.compile(args[2], flags)
|
||||||
|
else:
|
||||||
|
raise ValueError()
|
||||||
|
# pylint: disable-next=bare-except
|
||||||
|
except: # Grr... the 're' module throws weird errors
|
||||||
|
#except ValueError:
|
||||||
|
utils.logError(_(f'Error processing line {i + 1} of {file_name}.'))
|
||||||
|
|
||||||
|
# colour resources
|
||||||
|
class _Colour:
|
||||||
|
def __init__(self, r, g, b, a=1.0):
|
||||||
|
# the individual colour components as floats in the range [0, 1]
|
||||||
|
self.red = r
|
||||||
|
self.green = g
|
||||||
|
self.blue = b
|
||||||
|
self.alpha = a
|
||||||
|
|
||||||
|
# multiply by scalar
|
||||||
|
def __mul__(self, s):
|
||||||
|
return _Colour(s * self.red, s * self.green, s * self.blue, s * self.alpha)
|
||||||
|
|
||||||
|
# add colours
|
||||||
|
def __add__(self, other):
|
||||||
|
return _Colour(
|
||||||
|
self.red + other.red,
|
||||||
|
self.green + other.green,
|
||||||
|
self.blue + other.blue,
|
||||||
|
self.alpha + other.alpha)
|
||||||
|
|
||||||
|
# over operator
|
||||||
|
def over(self, other):
|
||||||
|
return self + other * (1 - self.alpha)
|
||||||
|
|
||||||
|
# class to build and run a finite state machine for identifying syntax tokens
|
||||||
|
class _SyntaxParser:
|
||||||
|
# create a new state machine that begins in initial_state and classifies
|
||||||
|
# all characters not matched by the patterns as default_token_type
|
||||||
|
def __init__(self, initial_state, default_token_type):
|
||||||
|
# initial state for the state machine when parsing a new file
|
||||||
|
self.initial_state = initial_state
|
||||||
|
# default classification of characters that are not explicitly matched
|
||||||
|
# by any state transition patterns
|
||||||
|
self.default_token_type = default_token_type
|
||||||
|
# mappings from a state to a list of (pattern, token_type, next_state)
|
||||||
|
# tuples indicating the new state for the state machine when 'pattern'
|
||||||
|
# is matched and how to classify the matched characters
|
||||||
|
self.transitions_lookup = { initial_state : [] }
|
||||||
|
|
||||||
|
# Adds a new edge to the finite state machine from prev_state to
|
||||||
|
# next_state. Characters will be identified as token_type when pattern is
|
||||||
|
# matched. Any newly referenced state will be added. Patterns for edges
|
||||||
|
# leaving a state will be tested in the order they were added to the finite
|
||||||
|
# state machine.
|
||||||
|
def addPattern(self, prev_state, next_state, token_type, pattern):
|
||||||
|
lookup = self.transitions_lookup
|
||||||
|
for state in prev_state, next_state:
|
||||||
|
if state not in lookup:
|
||||||
|
lookup[state] = []
|
||||||
|
lookup[prev_state].append([pattern, token_type, next_state])
|
||||||
|
|
||||||
|
# given a string and an initial state, identify the final state and tokens
|
||||||
|
def parse(self, state_name, s):
|
||||||
|
lookup = self.transitions_lookup
|
||||||
|
transitions, blocks, start = lookup[state_name], [], 0
|
||||||
|
while start < len(s):
|
||||||
|
for pattern, token_type, next_state in transitions:
|
||||||
|
m = pattern.match(s, start)
|
||||||
|
if m is not None:
|
||||||
|
end, state_name = m.span()[1], next_state
|
||||||
|
transitions = lookup[state_name]
|
||||||
|
break
|
||||||
|
else:
|
||||||
|
end, token_type = start + 1, self.default_token_type
|
||||||
|
if len(blocks) > 0 and blocks[-1][2] == token_type:
|
||||||
|
blocks[-1][1] = end
|
||||||
|
else:
|
||||||
|
blocks.append([start, end, token_type])
|
||||||
|
start = end
|
||||||
|
return state_name, blocks
|
||||||
40
src/utils.py
40
src/utils.py
|
|
@ -47,6 +47,29 @@ class MessageDialog(Gtk.MessageDialog):
|
||||||
text=s)
|
text=s)
|
||||||
self.set_title(constants.APP_NAME)
|
self.set_title(constants.APP_NAME)
|
||||||
|
|
||||||
|
# widget to help pick an encoding
|
||||||
|
class EncodingMenu(Gtk.Box):
|
||||||
|
def __init__(self, prefs, autodetect=False):
|
||||||
|
Gtk.Box.__init__(self, orientation=Gtk.Orientation.HORIZONTAL)
|
||||||
|
self.combobox = combobox = Gtk.ComboBoxText.new()
|
||||||
|
self.encodings = prefs.getEncodings()[:]
|
||||||
|
for e in self.encodings:
|
||||||
|
combobox.append_text(e)
|
||||||
|
if autodetect:
|
||||||
|
self.encodings.insert(0, None)
|
||||||
|
combobox.prepend_text(_('Auto Detect'))
|
||||||
|
self.pack_start(combobox, False, False, 0) # pylint: disable=no-member
|
||||||
|
combobox.show()
|
||||||
|
|
||||||
|
def set_text(self, encoding):
|
||||||
|
encoding = norm_encoding(encoding)
|
||||||
|
if encoding in self.encodings:
|
||||||
|
self.combobox.set_active(self.encodings.index(encoding))
|
||||||
|
|
||||||
|
def get_text(self):
|
||||||
|
i = self.combobox.get_active()
|
||||||
|
return self.encodings[i] if i >= 0 else None
|
||||||
|
|
||||||
# platform test
|
# platform test
|
||||||
def isWindows():
|
def isWindows():
|
||||||
return os.name == 'nt'
|
return os.name == 'nt'
|
||||||
|
|
@ -69,7 +92,7 @@ def logError(msg):
|
||||||
def logErrorAndDialog(msg,parent=None):
|
def logErrorAndDialog(msg,parent=None):
|
||||||
logError(msg)
|
logError(msg)
|
||||||
dialog = MessageDialog(parent, Gtk.MessageType.ERROR, msg)
|
dialog = MessageDialog(parent, Gtk.MessageType.ERROR, msg)
|
||||||
dialog.run()
|
dialog.run() # pylint: disable=no-member
|
||||||
dialog.destroy()
|
dialog.destroy()
|
||||||
|
|
||||||
# create nested subdirectories and return the complete path
|
# create nested subdirectories and return the complete path
|
||||||
|
|
@ -190,6 +213,9 @@ def popenReadLines(dn, cmd, prefs, bash_pref, success_results=None):
|
||||||
return _strip_eols(splitlines(popenRead(
|
return _strip_eols(splitlines(popenRead(
|
||||||
dn, cmd, prefs, bash_pref, success_results).decode('utf-8', errors='ignore')))
|
dn, cmd, prefs, bash_pref, success_results).decode('utf-8', errors='ignore')))
|
||||||
|
|
||||||
|
def readconfiglines(fd):
|
||||||
|
return fd.read().replace('\r', '').split('\n')
|
||||||
|
|
||||||
# escape special glob characters
|
# escape special glob characters
|
||||||
def globEscape(s):
|
def globEscape(s):
|
||||||
m = { c: f'[{c}]' for c in '[]?*' }
|
m = { c: f'[{c}]' for c in '[]?*' }
|
||||||
|
|
@ -227,6 +253,18 @@ def splitlines(text: str) -> list[str]:
|
||||||
def readlines(fd):
|
def readlines(fd):
|
||||||
return _strip_eols(splitlines(fd.read()))
|
return _strip_eols(splitlines(fd.read()))
|
||||||
|
|
||||||
|
# map an encoding name to its standard form
|
||||||
|
def norm_encoding(e):
|
||||||
|
if e is not None:
|
||||||
|
return e.replace('-', '_').lower()
|
||||||
|
return None
|
||||||
|
|
||||||
|
def null_to_empty(s):
|
||||||
|
if s is None:
|
||||||
|
s = ''
|
||||||
|
return s
|
||||||
|
|
||||||
|
|
||||||
# use the program's location as a starting place to search for supporting files
|
# use the program's location as a starting place to search for supporting files
|
||||||
# such as icon and help documentation
|
# such as icon and help documentation
|
||||||
if hasattr(sys, 'frozen'):
|
if hasattr(sys, 'frozen'):
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue