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if not modules then modules = { } end modules ['font-enh'] = {
version = 1.001,
comment = "companion to font-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local next = next
local trace_defining = false trackers.register("fonts.defining", function(v) trace_defining = v end)
local report_defining = logs.reporter("fonts","defining")
local fonts = fonts
local constructors = fonts.constructors
local tfmfeatures = constructors.newfeatures("tfm")
local registertfmfeature = tfmfeatures.register
local fontencodings = fonts.encodings
fontencodings.remappings = fontencodings.remappings or { }
local function reencode(tfmdata,encoding)
if encoding and fontencodings.known[encoding] then
local data = fontencodings.load(encoding)
if data then
tfmdata.properties.encoding = encoding
local characters = tfmdata.characters
local original = { }
local vector = data.vector
for unicode, character in next, characters do
character.name = vector[unicode]
character.index = unicode, character
original[unicode] = character
end
for newcode, oldcode in next, data.unicodes do
if newcode ~= oldcode then
if trace_defining then
report_defining("reencoding U+%04X to U+%04X",newcode,oldcode)
end
characters[newcode] = original[oldcode]
end
end
end
end
end
registertfmfeature {
name = "reencode",
description = "reencode",
manipulators = {
base = reencode,
node = reencode,
}
}
local function remap(tfmdata,remapping)
local vector = remapping and fontencodings.remappings[remapping]
if vector then
local characters, original = tfmdata.characters, { }
for k, v in next, characters do
original[k], characters[k] = v, nil
end
for k,v in next, vector do
if k ~= v then
if trace_defining then
report_defining("remapping U+%04X to U+%04X",k,v)
end
local c = original[k]
characters[v] = c
c.index = k
end
end
local properties = tfmdata.properties
if not properties then
properties = { }
tfmdata.properties = properties
else
properties.encodingbytes = 2
properties.format = properties.format or 'type1'
end
end
end
registertfmfeature {
name = "remap",
description = "remap",
manipulators = {
base = remap,
node = remap,
}
}
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