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sublime_unicode_nbsp.py
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sublime_unicode_nbsp.py
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'''
Highlights unicode nbsp. and trailing stuff
based on:
https://bitbucket.org/theblacklion/sublime_plugins/src/3ea0c9e35d2f/highlight_trailing_spaces.py
http://stackoverflow.com/a/6609998/96664
'''
import sublime
import sublime_plugin
DEFAULT_MAX_FILE_SIZE = 1048576
DEFAULT_COLOR_NAME = 'invalid'
def view_is_too_big(view, max_size_setting, default_max_size=None):
settings = view.settings()
max_size = settings.get(max_size_setting, default_max_size)
if max_size not in (None, False):
max_size = int(max_size)
cur_size = view.size()
if cur_size > max_size:
return True
return False
def view_is_widget(view):
settings = view.settings()
return bool(settings.get('is_widget'))
class DeferedViewListener(sublime_plugin.EventListener):
def __init__(self):
super(DeferedViewListener, self).__init__()
self.seen_views = []
self.max_size_setting = ''
self.default_max_file_size = None
self.delay = 500
def is_enabled(self, view):
return True
def view_is_too_big_callback(self):
pass
def update(self, view):
pass
def defered_update(self, view):
if not view.window(): # If view is not visible window() will be None.
return
if view.id() not in self.seen_views:
self.seen_views.append(view.id())
if view_is_widget(view):
return
if not self.is_enabled(view):
return
if view_is_too_big(view, self.max_size_setting,
self.default_max_file_size):
self.view_is_too_big_callback(view)
return
def func():
self.update(view)
if self.delay:
sublime.set_timeout(func, self.delay)
else:
func()
def on_modified(self, view):
self.defered_update(view)
def on_load(self, view):
self.defered_update(view)
def on_activated(self, view):
if view.id() not in self.seen_views:
self.defered_update(view)
class HighlightUnicodeListener(DeferedViewListener):
chars = {
u'\x82' : ',', # High code comma
u'\x84' : ',,', # High code double comma
u'\x85' : '...', # Tripple dot
u'\x88' : '^', # High carat
u'\x91' : ' \x27', # Forward single quote
u'\x92' : '\x27', # Reverse single quote
u'\x93' : '\x22', # Forward double quote
u'\x94' : '\x22', # Reverse double quote
u'\x95' : ' ',
u'\x96' : '-', # High hyphen
u'\x97' : '--', # Double hyphen
u'\x99' : ' ',
u'\xa0' : ' ',
u'\xa6' : '|', # Split vertical bar
u'\xab' : '<<', # Double less than
u'\xbb' : '>>', # Double greater than
u'\xbc' : '1/4', # one quarter
u'\xbd' : '1/2', # one half
u'\xbe' : '3/4', # three quarters
u'\xbf' : '\x27', # c-single quote
u'\xa8' : '', # modifier - under curve
u'\xb1' : '' # modifier - under line
}
def __init__(self):
super(HighlightUnicodeListener, self).__init__()
self.max_size_setting = 'highlight_unicode_max_file_size'
self.default_max_file_size = DEFAULT_MAX_FILE_SIZE
self.delay = 0
def view_is_too_big_callback(self, view):
view.erase_regions('HighlightUnicodeListener')
def update(self, view):
settings = view.settings()
color_name = settings.get('highlight_unicode_color_name', DEFAULT_COLOR_NAME)
regions = []
for x in view.find_all(u'[' + ''.join(self.chars.keys()) + u']+'):
regions.append(x)
for x in view.find_all(u'[ \t]+$'):
regions.append(x)
#for x in view.find_all(u'^$'):
# regions.append(x)
view.add_regions('HighlightUnicodeJunk', regions, color_name,
flags=sublime.DRAW_EMPTY_AS_OVERWRITE)