#!/usr/bin/fontforge -script

"""

For use on Metafont fonts.

To import glyphs each in individual .eps files into an empty font file.

First, process with 'mpost'.  Procedure is:

1) Make sure you have an mfplain mem file for mpost.  It may come with

   the distro, but it is possible also to generate it.  

   I found an mfplain.mp file somewhere.  Use it to make an mfplain.mem.

	   mpost -ini '\input mfplain.mp; dump'

2) Generate .eps files from a .mf file such as skt10.mf

	mpost '&./mfplain \mag=1; truecorners:=0; filenametemplate "%j-%4c.eps"; input skt10.mf'

   A bunch of eps files should result, with names like

   	skt10-012.eps

3) Use FontForge to make an empty font file, with a name like SKT.sfd

4) Run this script on the eps files like so

	freefont/tools/metafont/bulk_eps_import.py SKT.sfd skt10

Then clean up clean up clean up.

"""

__author__ = "Stevan White"

__email__ = "stevan.white@googlemail.com"

__copyright__ = "Copyright 2008, 2011, Stevan White"

__date__ = "$Date: 2011-09-12 14:25:06 +0200 (Mon, 12 Sep 2011) $"

__version__ = "$Revision: 1694 $"

import fontforge

import sys, os

import fnmatch, re

problem = False

def import_glyph( font, name, chrnum ):

	print "importing file: " + name + " to slot " + str( chrnum )

	g = font.createChar( chrnum )

	print "importing outlines " + name 

	g.importOutlines( name )

	# The glyphs produced by MetaPost usually have a grid, whose

	# right side seems to correspond to the proper right side bearing

	xmax = g.layers[1].boundingBox()[2]

	g.right_side_bearing = max( xmax, 0 )

scriptname = sys.argv[0];

argc = len( sys.argv )

file_pat = r'([A-Za-z0-9]*)-(\d{3,4}).eps'

file_pat = sys.argv[2] + r'-(\d{3,4}).eps'

re_file_pat = re.compile( file_pat )

if argc > 2:

	fontfilename = sys.argv[1]

	font = fontforge.open( fontfilename )

	print "bulk importing to font file: " + fontfilename

	chrnum = 0

	directories = os.listdir('.')

	directories.sort()

	for file in directories:

		matches = re_file_pat.match( file )

		if matches:

			chrnum = int( matches.group(1) )

			import_glyph( font, file, chrnum )

	font.save()

	font.close()

sys.exit( int( problem ) )