fix_syntax.py

# Sublime's built-in Haskell lexer (Packages/Haskell/Haskell.tmLanguage)
# is slightly broken.
#
# This sets the syntax of all Haskell files to our
# SublimeHaskell/Syntaxes/Haskell-SublimeHaskell.tmLanguage instead.
#
# Forked from https://gist.github.com/2940866.
import sublime_plugin
import os


class DetectFileTypeCommand(sublime_plugin.EventListener):

    def on_load(self, view):
        filename = view.file_name()
        if not filename:  # buffer has never been saved
            return

        name = os.path.basename(filename.lower())
        if name.endswith(".hs") or name.endswith(".hsc"):
            set_our_syntax(view, filename)
        # TODO Do we also have to fix Literate Haskell?


def set_our_syntax(view, filename):
    view.settings().set('syntax', 'Packages/SublimeHaskell/Syntaxes/Haskell-SublimeHaskell.tmLanguage')
    print("Switched syntax to SublimeHaskell's fixed Haskell syntax: " + filename)