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Diffstat (limited to 'luaotfload-legacy.lua')
| -rw-r--r-- | luaotfload-legacy.lua | 402 |
1 files changed, 0 insertions, 402 deletions
diff --git a/luaotfload-legacy.lua b/luaotfload-legacy.lua deleted file mode 100644 index 8bb1790..0000000 --- a/luaotfload-legacy.lua +++ /dev/null @@ -1,402 +0,0 @@ -module("luaotfload", package.seeall) - -luaotfload.module = { - name = "luaotfload-legacy", - version = 1.31, - date = "2013/04/25", - description = "Unsupported Luaotfload", - author = "Elie Roux & Hans Hagen", - copyright = "Elie Roux", - license = "GPL v2" -} - -local error, warning, info, log = luatexbase.provides_module(luaotfload.module) - ---[[doc-- - - This used to be a necessary initalization in order not to rebuild an - existing font. Maybe 600 should be replaced by |\pdfpkresolution| - or |texconfig.pk_dpi| (and it should be replaced dynamically), but - we don't have access (yet) to the |texconfig| table, so we let it be - 600. Anyway, it does still work fine even if |\pdfpkresolution| is - changed. - ---doc]]-- - -kpse.init_prog("", 600, "/") - ---[[doc-- - - The minimal required \luatex version. - We are tolerant folks. - ---doc]]-- - -local luatex_version = 60 -if tex.luatexversion < luatex_version then - warning("LuaTeX v%.2f is old, v%.2f is required, v0.76 recommended.", - tex.luatexversion/100, - luatex_version /100) -end - ---[[doc-- - - \subsection{Module loading} - We load the outdated \context files with this function. It - automatically adds the |otfl-| prefix to it, so that we call it with - the actual \context name. - ---doc]]-- - -function luaotfload.loadmodule(tofind) - local found = kpse.find_file(tofind,"tex") - if found then - log("loading file %s.", found) - dofile(found) - else - error("file %s not found.", tofind) - end -end -local loadmodule = luaotfload.loadmodule - ---[[doc-- - - Keep away from these lines! - ---doc]]-- -loadmodule"luaotfload-legacy-merged.lua" - -if not fonts then - loadmodule("otfl-luat-dum.lua") -- not used in context at all - loadmodule("otfl-luat-ovr.lua") -- override some luat-dum functions - loadmodule("otfl-data-con.lua") -- maybe some day we don't need this one - loadmodule("otfl-font-ini.lua") - loadmodule("otfl-node-dum.lua") - loadmodule("otfl-node-inj.lua") ---[[doc-- - By default \context takes some private attributes for internal use. To - avoide attribute clashes with other packages, we override the function - that allocates new attributes, making it a wraper around - |luatexbase.new_attribute()|. We also prefix attributes with |otfl@| to - avoid possiple name clashes. ---doc]]-- - loadmodule("luaotfload-legacy-attributes.lua") -- patch attributes ---[[doc-- - Font handling modules. ---doc]]-- - loadmodule("otfl-font-tfm.lua") - loadmodule("otfl-font-cid.lua") - loadmodule("otfl-font-ott.lua") - loadmodule("otfl-font-map.lua") - loadmodule("otfl-font-otf.lua") - loadmodule("otfl-font-otd.lua") - loadmodule("otfl-font-oti.lua") - loadmodule("otfl-font-otb.lua") - loadmodule("otfl-font-otn.lua") - loadmodule("otfl-font-ota.lua") - loadmodule("otfl-font-otc.lua") - loadmodule("otfl-font-def.lua") ---[[doc-- - \textsf{old luaotfload} specific modules. ---doc]]-- - loadmodule("otfl-font-xtx.lua") - loadmodule("otfl-font-dum.lua") - loadmodule("otfl-font-clr.lua") -end -loadmodule"luaotfload-legacy-database.lua" --- unmerged coz needed in db script - ---[[doc-- - - This is a patch for |otfl-font-def.lua|, that defines a reader for ofm - fonts, this is necessary if we set the forced field of the specification - to |ofm|. - ---doc]]-- - -if fonts and fonts.tfm and fonts.tfm.readers then - fonts.tfm.readers.ofm = fonts.tfm.readers.tfm -end - ---[[doc-- - - \subsection{Post-processing TFM table} - Here we do some final touches to the loaded TFM table before passing it - to the \tex end. - First we create a callback for patching fonts on the fly, to be used by - other packages. - ---doc]]-- - -luatexbase.create_callback("luaotfload.patch_font", "simple", function() end) - ---[[doc-- - - then define a function where font manipulation will take place. - ---doc]]-- - -local function def_font(...) - local fontdata = fonts.define.read(...) - if type(fontdata) == "table" and fontdata.shared then ---[[doc-- - - Then we populate |MathConstants| table, which is required for - OpenType math. - - Note: actually it isn’t, but you’re asking for it by using outdated - code. - ---doc]]-- - local otfdata = fontdata.shared.otfdata - if otfdata.metadata.math then - local mc = { } - for k,v in next, otfdata.metadata.math do - if k:find("Percent") then - -- keep percent values as is - mc[k] = v - else - mc[k] = v / fontdata.units * fontdata.size - end - end - -- for \overwithdelims - mc.FractionDelimiterSize = 1.01 * fontdata.size - mc.FractionDelimiterDisplayStyleSize = 2.39 * fontdata.size - - fontdata.MathConstants = mc - end ---[[doc-- - - Execute any registered font patching callbacks. - ---doc]]-- - luatexbase.call_callback("luaotfload.patch_font", fontdata) - end - return fontdata -end - ---[[doc-- -\subsection{\context override} - - We have a unified function for both file and name resolver. This - line is commented as it makes database reload too often. This means - that in some cases, a font in the database will not be found if - it's not in the texmf tree. A similar thing will reappear in next - version. - ---doc]]-- - ---fonts.define.resolvers.file = fonts.define.resolvers.name - ---[[doc-- - - Overriding some defaults set in \context code. - ---doc]]-- - -fonts.mode = "node" - ---[[doc-- - - The following features are useful in math (e.g. in XITS Math font), - but \textsf{luaotfload} does not recognize them in |base| mode. - ---doc]]-- - -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 - ---[[doc-- - - Finally we register the callbacks - ---doc]]-- - -luatexbase.add_to_callback("pre_linebreak_filter", - nodes.simple_font_handler, - "luaotfload.pre_linebreak_filter") -luatexbase.add_to_callback("hpack_filter", - nodes.simple_font_handler, - "luaotfload.hpack_filter") -luatexbase.reset_callback("define_font") -luatexbase.add_to_callback("define_font", - def_font, - "luaotfload.define_font", 1) -luatexbase.add_to_callback("find_vf_file", - fonts.vf.find, - "luaotfload.find_vf_file") ---[[doc-- - - XXX: see https://github.com/wspr/unicode-math/issues/185 - \luatex does not provide interface to accessing - |(Script)ScriptPercentScaleDown| math constants, so we - emulate \xetex behaviour by setting |\fontdimen10| and - |\fontdimen11|. - - Note: actually, it does now, but not unless you update. - ---doc]]-- - -local function set_sscale_diments(fontdata) - local mc = fontdata.MathConstants - if mc then - if mc["ScriptPercentScaleDown"] then - fontdata.parameters[10] = mc.ScriptPercentScaleDown - else -- resort to plain TeX default - fontdata.parameters[10] = 70 - end - if mc["ScriptScriptPercentScaleDown"] then - fontdata.parameters[11] = mc.ScriptScriptPercentScaleDown - else -- resort to plain TeX default - fontdata.parameters[11] = 50 - end - end -end - -luatexbase.add_to_callback("luaotfload.patch_font", set_sscale_diments, "unicodemath.set_sscale_diments") - ---[[doc-- - Version 2.3c of fontspec dropped a couple features that are now - provided in the luaotfload auxiliary libraries. To avoid breaking - Mik\TEX (again), which is sorta the entire point of distributing the - legacy codebase, we temporarily restore those functions here. - - Note that apart from cosmetic changes these are still the same as in - pre-TL2013 fontspec, relying on pairs() and other inefficient methods. ---doc]]-- - -luaotfload.aux = luaotfload.aux or { } -local aux = luaotfload.aux - -local stringlower = string.lower -local fontid = font.id - -local identifiers = fonts.identifiers - -local check_script = function (id, script) - local s = stringlower(script) - if id and id > 0 then - local tfmdata = identifiers[id] - local otfdata = tfmdata.shared and tfmdata.shared.otfdata - if otfdata then - local features = otfdata.luatex.features - for i, _ in pairs(features) do - for j, _ in pairs(features[i]) do - if features[i][j][s] then - fontspec.log("script '%s' exists in font '%s'", - script, tfmdata.fullname) - return true - end - end - end - end - end -end - -local check_language = function (id, script, language) - local s = stringlower(script) - local l = stringlower(language) - if id and id > 0 then - local tfmdata = identifiers[id] - local otfdata = tfmdata.shared and tfmdata.shared.otfdata - if otfdata then - local features = otfdata.luatex.features - for i, _ in pairs(features) do - for j, _ in pairs(features[i]) do - if features[i][j][s] and features[i][j][s][l] then - fontspec.log("language '%s' for script '%s' exists in font '%s'", - language, script, tfmdata.fullname) - return true - end - end - end - end - end -end - -local check_feature = function (id, script, language, feature) - local s = stringlower(script) - local l = stringlower(language) - local f = stringlower(feature:gsub("^[+-]", ""):gsub("=.*$", "")) - if id and id > 0 then - local tfmdata = identifiers[id] - local otfdata = tfmdata.shared and tfmdata.shared.otfdata - if otfdata then - local features = otfdata.luatex.features - for i, _ in pairs(features) do - if features[i][f] and features[i][f][s] then - if features[i][f][s][l] == true then - fontspec.log("feature '%s' for language '%s' and script '%s' exists in font '%s'", - feature, language, script, tfmdata.fullname) - return true - end - end - end - end - end -end - -local get_math_dimension = function(fnt, str) - if type(fnt) == "string" then - fnt = fontid(fnt) - end - local tfmdata = identifiers[fnt] - if tfmdata then - local mathdata = tfmdata.MathConstants - if mathdata then - return mathdata[str] - end - end -end - -aux.provides_script = check_script -aux.provides_language = check_language -aux.provides_feature = check_feature -aux.get_math_dimension = get_math_dimension - -local set_capheight = function (tfmdata) - local capheight - local shared = tfmdata.shared - if shared then - local metadata = shared.otfdata.metadata - local units_per_em = metadata.units_per_em or tfmdata.units - local os2_capheight = shared.otfdata.pfminfo.os2_capheight - local size = tfmdata.size - - if os2_capheight > 0 then - capheight = os2_capheight / units_per_em * size - else - local X8 = string.byte"X" - if tfmdata.characters[X8] then - capheight = tfmdata.characters[X8].height - else - capheight = metadata.ascent / units_per_em * size - end - end - else - local X8 = string.byte"X" - if tfmdata.characters[X8] then - capheight = tfmdata.characters[X8].height - end - end - if capheight then - tfmdata.parameters[8] = capheight - end -end -luatexbase.add_to_callback("luaotfload.patch_font", - set_capheight, - "luaotfload.set_capheight") - ---[[doc-- -End of auxiliary functionality that was moved from fontspec.lua. ---doc]]-- - --- vim:ts=2:sw=2:expandtab:ft=lua |