Switch to OFL

Fixes #1

Patched the generated fonts with FontTools since running the build
script with create a completely new font (I don’t even know if it still
runs).

OFL.txt

@@ -0,0 +1,87 @@
+Copyright © 2015-2016 The Mada Project Authors, with Reserved Font Name "Source". Source is a trademark of Adobe Systems Incorporated in the United States and/or other countries.
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+---------------------------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+---------------------------------------------------------------------------
+
+PREAMBLE
+
+The goals of the Open Font License (OFL) are to stimulate worldwide development
+of collaborative font projects, to support the font creation efforts of academic
+and linguistic communities, and to provide a free and open framework in which
+fonts may be shared and improved in partnership with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and redistributed
+freely as long as they are not sold by themselves. The fonts, including any
+derivative works, can be bundled, embedded, redistributed and/or sold with any
+software provided that any reserved names are not used by derivative works. The
+fonts and derivatives, however, cannot be released under any other type of license.
+The requirement for fonts to remain under this license does not apply to any
+document created using the fonts or their derivatives.
+
+DEFINITIONS
+
+"Font Software" refers to the set of files released by the Copyright Holder(s) under
+this license and clearly marked as such. This may include source files, build
+scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the copyright
+statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting, or
+substituting -- in part or in whole -- any of the components of the Original Version,
+by changing formats or by porting the Font Software to a new environment.
+
+"Author" refers to any designer, engineer, programmer, technical writer or other
+person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of the
+Font Software, to use, study, copy, merge, embed, modify, redistribute, and sell
+modified and unmodified copies of the Font Software, subject to the following
+conditions:
+
+1) Neither the Font Software nor any of its individual components, in Original or
+Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled, redistributed
+and/or sold with any software, provided that each copy contains the above copyright
+notice and this license. These can be included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields within
+text or binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font Name(s) unless
+explicit written permission is granted by the corresponding Copyright Holder. This
+restriction only applies to the primary font name as presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font Software shall
+not be used to promote, endorse or advertise any Modified Version, except to
+acknowledge the contribution(s) of the Copyright Holder(s) and the Author(s) or with
+their explicit written permission.
+
+5) The Font Software, modified or unmodified, in part or in whole, must be distributed
+entirely under this license, and must not be distributed under any other license. The
+requirement for fonts to remain under this license does not apply to any document
+created using the Font Software.
+
+TERMINATION
+
+This license becomes null and void if any of the above conditions are not met.
+
+DISCLAIMER
+
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER
+RIGHT. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR
+INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE FONT SOFTWARE.

README.md

@@ -21,39 +21,29 @@ Python script then uses FontForge to import the glyphs into an OpenType
 CFF font. Since this year is the 2^5 anniversary of TeX, each lower case
 letter have 2^5 variants, 2^4 for each upper case and 2^3 for the rest.
 
-This font is free software, you can do whatever you want with it as long
-as you use different font and file names. The exact copyright statement is:
-
-     "Unlimited copying and redistribution of this file are permitted as long
-      as this file is not modified. Modifications are permitted, but only if
-      the resulting file is not named 'punknova.otf' and the (internal)
-      fontname differs from 'Punk Nova'."
+This font is distributed under the terms of Open Font License (OFL).
 
 The MetaPost source has the following notice:
 
-    This file is a merge of the original punk files by Donald Knuth, who
-    added this comment:
-    
-      Font inspired by Gerard and Marjan Unger's lectures,
-      Feb 1985
-
-    The regular punk files are part of TeXLive and in Metafont format. All
-    errors introduced are ours. We also changed the encoding to unicode. In
-    due time we might add a few more more characters. We still need to
-    improve some of the metrics which involves a bit of trial and error. The
-    font just covers basic latin shapes but in ConTeXt MkIV we add virtual
-    composed shapes. There is a module m-punk.tex that implements this. This
-    derivate is also used in mk.tex (mk.pdf) which is one of our tests for
-    LuaTeX. We published an article on it in the MAPS (NTG magazine).
-    
-    2008, Taco Hoekwater & Hans Hagen
+> This file is a merge of the original punk files by Donald Knuth, who
+> added this comment:
+>
+>   Font inspired by Gerard and Marjan Unger's lectures,
+>   Feb 1985
+>
+> The regular punk files are part of TeXLive and in Metafont format. All
+> errors introduced are ours. We also changed the encoding to unicode. In
+> due time we might add a few more more characters. We still need to
+> improve some of the metrics which involves a bit of trial and error. The
+> font just covers basic latin shapes but in ConTeXt MkIV we add virtual
+> composed shapes. There is a module m-punk.tex that implements this. This
+> derivate is also used in mk.tex (mk.pdf) which is one of our tests for
+> LuaTeX. We published an article on it in the MAPS (NTG magazine).
+>
+> 2008, Taco Hoekwater & Hans Hagen
 
 The MAPS article is [available online][3].
 
 [1]: http://tug.org/TUGboat/Articles/tb09-2/tb21knut.pdf
 [2]: http://www.microsoft.com/typography/otspec/features_pt.htm#rand
 [3]: http://www.ntg.nl/maps/37/
-
-Khaled Hosny
-
-6 Aug. 2010

tools/build.py

@@ -202,10 +202,7 @@ def usage():
     font.version    = '00%.03f' %(float(version)/1000)
     font.encoding   = "Unicode"
 
-    font.copyright  = "Unlimited copying and redistribution of this file are\
- permitted as long as this file is not modified. Modifications are permitted,\
- but only if the resulting file is not named '%s' and the (internal) fontname\
- differs from '%s'." % (outfile, font.familyname)
+    font.copyright  = "Copyright © 2008-2011 The Punk Nova Project Authors."
 
     do_instances(font, instances, mpfile, tempdir)
     add_gsub    (font, instances)