Re: [NTG-context] new beta

Wed, 08 Apr 2009 00:31:04 -0700 

وفا خلیقی wrote:

Hi Hans

Thanks for the code so that we can use fonts in Plain and LaTeX.

I just had two questions

1- I got the code from Khaled. How can I get the beta myself from your
repository? I just joined ConTeXt mailing list.
in most cases it's the same as on the website (the ftp is low bandwidth so only used by a few) 

http://www.pragma-ade.com/context/latest/cont-tmf.zip


2- Your code works fine but if in LaTeX, I compile a document like
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\documentclass{article}

\pagedir TRT \bodydir TRT \pardir TRT \textdir TRT

\directlua {

dofile(kpse.find_file("luatex-fonts.lua","tex"))

}

\font\body=file:XBZar.ttf:mode=node;script=arab;language=ara;+init;+medi;+fina;+liga;+rlig;+mark;+mkmk
at 14pt

\def\normalfont{\body}

\AtBeginDocument{\body}

\begin{document}

این یک آزمایش است که در حال وقوع است.

\section{مقدمه}

\end{document}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


Then it gives this error


! LuaTeX error /home/vafa/texmf/tex/luatex-fonts/font-def.lua:337: attempt
to c

all field 'read_from_afm' (a nil value).

<to be read again>
indeed, has to do with the fact that (since we use the xetex syntax there) we default to name lookups and those are tagged as afm while luatex-fonts does not have that code (does not make sense) 

you can try the attached file (probably enough, else i have to send more)
as we're in transition to luatex 0.38 i cannot post a zip today (some fundamental math changes) 

Hans
ps. keep in mind that the real advanced stuff with respect to fonts is context only although node mode should work ok in luatex-fonts (add mode=yes to the specification) 

-----------------------------------------------------------------
                                          Hans Hagen | PRAGMA ADE
              Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                             | www.pragma-pod.nl
-----------------------------------------------------------------

if not modules then modules = { } end modules ['font-dum'] = {
    version   = 1.001,
    comment   = "companion to luatex-*.tex",
    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
    copyright = "PRAGMA ADE / ConTeXt Development Team",
    license   = "see context related readme files"
}

fonts = fonts or { }

-- general

fonts.otf.pack       = false
fonts.tfm.resolve_vf = false -- no sure about this

-- readers

fonts.tfm.readers          = fonts.tfm.readers or { }
fonts.tfm.readers.sequence = { 'otf', 'ttf', 'tfm' }
fonts.tfm.readers.afm      = nil

-- define

fonts.define = fonts.define or { }

--~ fonts.define.method = "tfm"

fonts.define.specify.colonized_default_lookup = "name"

function fonts.define.get_specification(str)
    return "", str, "", ":", str
end

-- logger

fonts.logger = fonts.logger or { }

function fonts.logger.save()
end

-- names

fonts.names = fonts.names or { }

fonts.names.basename   = "luatex-fonts-names.lua"
fonts.names.new_to_old = { }
fonts.names.old_to_new = { }

local data, loaded = nil, false

function fonts.names.resolve(name,sub)
    if not loaded then
        local basename = fonts.names.basename
        if basename and basename ~= "" then
            for _, format in ipairs { "lua", "tex", "other text files" } do
                local foundname = input.find_file(basename,format) or ""
                if foundname ~= "" then
                    data = dofile(foundname)
                    if data then
                        local d = {  }
                        for k, v in pairs(data.mapping) do
                            local t = v[1]
                            if t == "ttf" or t == "otf" or t == "ttc" then
                                d[k] = v
                            end
                        end
                        data.mapping = d
                    end
                    break
                end
            end
        end
        loaded = true
    end
    if type(data) == "table" and data.version == 1.07 then
        local condensed = string.gsub(name,"[^%a%d]","")
        local found = data.mapping and data.mapping[condensed]
        if found then
            local filename, is_sub = found[3], found[4]
            return filename, is_sub
        else
            return name, false -- fallback to filename
        end
    end
end

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