Fix compatibility issues with the font patcher

Fontpatcher was unable to patch the Consolas font. This is due to the
fact that Consolas is 'not' strictly a mono spaced font - it has some
glyphs which are 0 width. The added option '--fix-mono' fixes this issue
by setting all 0 width glyphs to a common width.

Windows does not seem to respect the font family name that fontforge
uses.  Using the added option '--fix-win', the script will now set the
font name to be the family name. In this manner, Windows will group
these fonts under the same family. Windows still differentiates between
different fonts of the same name by their weights, so having fonts of
the same name is not a problem.

Closes #61.
Closes Lokaltog#194.

fontpatcher/fontpatcher

@@ -22,6 +22,7 @@ from __future__ import division
 import argparse
 import os
 import sys
+import re
 
 try:
 	import fontforge
@@ -42,6 +43,8 @@ parser = argparse.ArgumentParser(description='Font patcher for Powerline. Create
 parser.add_argument('fonts', help='font file to patch', metavar='font', nargs='+')
 parser.add_argument('--no-rename', help='don\'t add " for Powerline" to the font name', default=True, action='store_false', dest='rename')
 parser.add_argument('--symbol-font', help='font file with symbols', metavar='font', dest='symbol_font', default='{0}/PowerlineSymbols.sfd'.format(sys.path[0]))
+parser.add_argument('--fix-mono', help='fixes some mono-fonts which have glyphs of 0 widths', default=False, action='store_true', dest='fixmono')
+parser.add_argument('--fix-win', help='modifies font names such that Windows correctly recognizes font families', default=False, action='store_true', dest='fixwin')
 
 args = parser.parse_args()
 
@@ -78,6 +81,8 @@ for font_path in args.fonts:
 		font.fontname += 'ForPowerline'
 		font.appendSFNTName('English (US)', 'Preferred Family', font.familyname)
 		font.appendSFNTName('English (US)', 'Compatible Full', font.fullname)
+	if args.fixwin:
+		font.fontname = re.sub(r'\W', '', font.familyname)
 
 	# Force the em size to be equal
 	symbols.em = font.em
@@ -222,6 +227,9 @@ for font_path in args.fonts:
 	if extension.lower() not in ['ttf', 'otf']:
 		# Default to OpenType if input is not TrueType/OpenType
 		extension = 'otf'
+	if args.fixmono:
+		for glyph in font.glyphs():
+			if glyph.width == 0: glyph.width = font_dim['width']
 
 	if onlybitmaps:
 		# Generate BDF font