diff options
Diffstat (limited to 'luaotfload-deferred.lua')
| -rw-r--r-- | luaotfload-deferred.lua | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/luaotfload-deferred.lua b/luaotfload-deferred.lua deleted file mode 100644 index efa0298..0000000 --- a/luaotfload-deferred.lua +++ /dev/null @@ -1,172 +0,0 @@ ---- TODO integrate into luaotfload.dtx - -local type, next = type, next - -local stringfind = string.find ---- this part is loaded after luatexbase -local loadmodule = luaotfload.loadmodule -local luatexbase = luatexbase -local generic_context = generic_context --- from fontloader - -local add_to_callback, create_callback = - luatexbase.add_to_callback, luatexbase.create_callback -local reset_callback, call_callback = - luatexbase.reset_callback, luatexbase.call_callback - ---[[doc-- -We do our own callback handling with the means provided by luatexbase. - -Note: \verb|pre_linebreak_filter| and \verb|hpack_filter| are coupled -in \CONTEXT\ in the concept of \emph{node processor}. ---doc]]-- - -add_to_callback("pre_linebreak_filter", - generic_context.callback_pre_linebreak_filter, - "luaotfload.node_processor", - 1) -add_to_callback("hpack_filter", - generic_context.callback_hpack_filter, - "luaotfload.node_processor", - 1) - -luaotfload.loadmodule("font-otc.lua") - -loadmodule("lib-dir.lua") -- required by font-nms; will change with lualibs update -loadmodule("font-nms.lua") -loadmodule("font-clr.lua") ---loadmodule("font-ovr.lua") -loadmodule("font-ltx.lua") - -local dummy_function = function ( ) end --- upvalue more efficient than lambda -create_callback("luaotfload.patch_font", "simple", dummy_function) - ---[[doc-- -This is a wrapper for the imported font loader. -As of 2013, everything it does appears to be redundand, so we won’t use -it. -Nevertheless, it has been adapted to work with the current structure of -font data objects and will stay here for reference / until somebody -reports breakage. - -TODO -This one also enables patching fonts. -The current fontloader apparently comes with a dedicated mechanism for -that already: enhancers. -How those work remains to be figured out. ---doc]]-- -local define_font_wrapper = function (...) - --- we use “tfmdata” (not “fontdata”) for consistency with the - --- font loader - local tfmdata = fonts.definers.read(...) - if type(tfmdata) == "table" and tfmdata.shared then - local metadata = tfmdata.shared.rawdata.metadata - local mathdata = metadata.math --- do all fonts have this field? - if mathdata then - local mathconstants = { } --- why new hash, not modify in place? - local units_per_em = metadata.units_per_em - local size = tfmdata.size - for k,v in next, mathdata do - --- afaics this is alread taken care of by - --- definers.read - if stringfind(k, "Percent") then - -- keep percent values as is - print(k,v) - mathconstants[k] = v - else - mathconstants[k] = v / units_per_em * size - end - end - --- for \overwithdelims - --- done by definers.read as well - mathconstants.FractionDelimiterSize = 1.01 * size - --- fontloader has 2.4 × size - mathconstants.FractionDelimiterDisplayStyleSize = 2.39 * size - tfmdata.MathConstants = mathconstants - end - call_callback("luaotfload.patch_font", tfmdata) - end - return tfmdata -end - ---[[doc-- -We provide a simplified version of the original font definition -callback. ---doc]]-- -local patch_defined_font = function (...) - local tfmdata = fonts.definers.read(...) - if type(tfmdata) == "table" and tfmdata.shared then - call_callback("luaotfload.patch_font", tfmdata) - end - --inspect(tfmdata.shared.features) - return tfmdata -end - -fonts.mode = "node" - -function attributes.private(name) - local attr = "otfl@" .. name - local number = luatexbase.attributes[attr] - if not number then - number = luatexbase.new_attribute(attr) - end - return number -end - -reset_callback("define_font") - -if luaotfload.font_definer == "old" then - add_to_callback("define_font", - old_define_font_wrapper, - "luaotfload.define_font", - 1) -elseif luaotfload.font_definer == "generic" then - add_to_callback("define_font", - generic_context.callback_define_font, - "luaotfload.define_font", - 1) -elseif luaotfload.font_definer == "patch" then - add_to_callback("define_font", - patch_defined_font, - "luaotfload.define_font", - 1) -end - ---local register_base_sub = fonts.otf.features.register_base_substitution ---local gsubs = { - --"ss01", "ss02", "ss03", "ss04", "ss05", - --"ss06", "ss07", "ss08", "ss09", "ss10", - --"ss11", "ss12", "ss13", "ss14", "ss15", - --"ss16", "ss17", "ss18", "ss19", "ss20", ---} - ---for _,v in next, gsubs do - --register_base_sub(v) ---end ---add_to_callback("find_vf_file", - --fonts.vf.find, - --"luaotfload.find_vf_file") - -local set_sscale_diments = function (tfmdata) - local mathconstants = tfmdata.MathConstants - if mathconstants then - local tfmparameters = tfmdata.parameters - if mathconstants.ScriptPercentScaleDown then - tfmparameters[10] = mathconstants.ScriptPercentScaleDown - else -- resort to plain TeX default - tfmparameters[10] = 70 - end - if mathconstants.ScriptScriptPercentScaleDown then - tfmparameters[11] = mathconstants.ScriptScriptPercentScaleDown - else -- resort to plain TeX default - tfmparameters[11] = 50 - end - end -end - -add_to_callback("luaotfload.patch_font", - set_sscale_diments, - "unicodemath.set_sscale_diments") - --- vim:tw=71:sw=2:ts=2:expandtab - --- End of File `luaotfload.lua'. |