Can you highlight a character after a certain length in sublime text? - sublimetext2

Question

In VIM it is possible to highlight a character only if the line goes over a certain length, for example:
Can this be done in Sublime Text 2 or 3? I know there's a setting to display rulers but I find them a bit distracting sometimes.

Answer 1

javiervd
Can this be done in Sublime Text 2 or 3?
Save the following script #:
/Packages/Highlight Long Lines/highlight_long_lines.py
import sublime, sublime_plugin
class highlight_long_lines( sublime_plugin.EventListener ):
def on_modified_async( self, view ):
#▒▒▒▒▒▒▒▒ Settings ▒▒▒▒▒▒▒▒#
maxLength = 80
scope = "Invalid"
firstCharacter_Only = False
view.erase_regions( "LongLines" )
indentationSize = view.settings().get( "tab_size" )
indentation_IsSpace = view.settings().get( "translate_tabs_to_spaces" )
document = sublime.Region( 0, view.size() )
lineRegions = view.lines( document )
invalidRegions = []
for region in lineRegions:
text = view.substr( region )
text_WithoutTabs = text.expandtabs( indentationSize )
if text_WithoutTabs.isspace():
tabOffset = 0
else:
tabCount = text.count( " " )
tabDifference = len( text_WithoutTabs ) - len( text )
tabOffset = tabDifference
lineLength = ( region.end() - region.begin() ) - tabOffset
if lineLength > maxLength:
highlightStart = region.begin() + ( maxLength - tabOffset )
if firstCharacter_Only == True:
highlightEnd = highlightStart + 1
else:
highlightEnd = region.end()
invalidRegion = sublime.Region( highlightStart, highlightEnd )
invalidRegions.append( invalidRegion )
if len( invalidRegions ) > 0:
view.add_regions( "LongLines", invalidRegions, scope )
Variable Settings:
maxLength affects the length that lines will highlight after.
scope affects the color of the highlighted regions.
You can use any scope from your active .tmTheme file ( color scheme ).
firstCharacter_Only affects the extent of the highlighted regions.
If set to True, only the character at the 81st position will be highlighted.
If set to False, all characters after the 80th position will be highlighted.

Answer 2

You could just search for this regular expression:
(?<=.{80}).+
It would be navigable and on-demand.

Answer 3

You can extend(copy-rename and use) the syntax highlight and add a rule with this specific case!
you can add a regex similar to this:
<key>charAt</key>
<dict>
<key>patterns</key>
<array>
<dict>
<key>match</key>
<string>(?<=^.{21})(.)</string>
<key>name</key>
<string>invalid.illegal.bad-comments-or-CDATA.html</string>
</dict>
</array>
</dict>
where 21 is the position to highlight