HighlightWhitespaces/trailing_spaces.py
2011-10-18 17:08:29 -06:00

96 lines
3.3 KiB
Python

'''
Provides both a trailing spaces highlighter and a deletion command.
Config summary (see README.md for details):
# key binding
{ "keys": ["ctrl+shift+t"], "command": "delete_trailing_spaces" }
# file settings
{
"trailing_spaces_highlight_color": "invalid",
"trailing_spaces_file_max_size": 1000
}
@author: Jean-Denis Vauguet <jd@vauguet.fr>, Oktay Acikalin <ok@ryotic.de>
@license: MIT (http://www.opensource.org/licenses/mit-license.php)
@since: 2011-02-25
'''
import sublime, sublime_plugin
DEFAULT_MAX_FILE_SIZE = 1048576
DEFAULT_COLOR_SCOPE_NAME = "invalid"
DEFAULT_IS_ENABLED = True
#Set whether the plugin is on or off
TrailingSpacesEnabled = DEFAULT_IS_ENABLED
# Return an array of regions matching trailing spaces.
def find_trailing_spaces(view):
return view.find_all('[ \t]+$')
# Highlight trailing spaces
def highlight_trailing_spaces(view):
max_size = view.settings().get('trailing_spaces_file_max_size',
DEFAULT_MAX_FILE_SIZE)
color_scope_name = view.settings().get('trailing_spaces_highlight_color',
DEFAULT_COLOR_SCOPE_NAME)
if view.size() <= max_size:
regions = find_trailing_spaces(view)
view.add_regions('TrailingSpacesHighlightListener',
regions, color_scope_name,
sublime.DRAW_EMPTY)
# Clear all trailing spaces
def clear_trailing_spaces_highlight(window):
for view in window.views():
view.erase_regions('TrailingSpacesHighlightListener')
# Toggle the event listner on or off
class ToggleTrailingSpacesCommand(sublime_plugin.WindowCommand):
def run(self):
global TrailingSpacesEnabled
TrailingSpacesEnabled = False if(TrailingSpacesEnabled) else True
# If toggling on go ahead and perform a pass, if not clear the highlighting in all views
if(TrailingSpacesEnabled):
highlight_trailing_spaces(self.window.active_view())
else:
clear_trailing_spaces_highlight(self.window)
# Highlight matching regions.
class TrailingSpacesHighlightListener(sublime_plugin.EventListener):
def on_modified(self, view):
if(TrailingSpacesEnabled):
highlight_trailing_spaces(view)
def on_activated(self,view):
if(TrailingSpacesEnabled):
highlight_trailing_spaces(view)
def on_load(self,view):
if(TrailingSpacesEnabled):
highlight_trailing_spaces(view)
# Allows to erase matching regions.
class DeleteTrailingSpacesCommand(sublime_plugin.TextCommand):
def run(self, edit):
regions = find_trailing_spaces(self.view)
if regions:
# deleting a region changes the other regions positions, so we
# handle this maintaining an offset
offset = 0
for region in regions:
r = sublime.Region(region.a + offset, region.b + offset)
self.view.erase(edit, sublime.Region(r.a, r.b))
offset -= r.size()
msg_parts = {"nbRegions": len(regions),
"plural": 's' if len(regions) > 1 else ''}
msg = "Deleted %(nbRegions)s trailing spaces region%(plural)s" % msg_parts
else:
msg = "No trailing spaces to delete!"
sublime.status_message(msg)