diff options
Diffstat (limited to 'Master/texmf-dist/tex/context/base/mkxl/meta-ini.lmt')
-rw-r--r-- | Master/texmf-dist/tex/context/base/mkxl/meta-ini.lmt | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/context/base/mkxl/meta-ini.lmt b/Master/texmf-dist/tex/context/base/mkxl/meta-ini.lmt new file mode 100644 index 00000000000..ed7b2264f5d --- /dev/null +++ b/Master/texmf-dist/tex/context/base/mkxl/meta-ini.lmt @@ -0,0 +1,161 @@ +if not modules then modules = { } end modules ['meta-ini'] = { + version = 1.001, + comment = "companion to meta-ini.mkiv", + author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright = "PRAGMA ADE / ConTeXt Development Team", + license = "see context related readme files" +} + +local tonumber = tonumber +local format = string.format +local concat = table.concat +local lpegmatch, lpegpatterns = lpeg.match, lpeg.patterns +local P, Cs, R, S, C, Cc = lpeg.P, lpeg.Cs, lpeg.R, lpeg.S, lpeg.C, lpeg.Cc + +metapost = metapost or { } +local metapost = metapost +local context = context + +local colorhash = attributes.list[attributes.private('color')] +local textype = tex.type +local MPcolor = context.MPcolor + +do + + local dimenorname = + lpegpatterns.validdimen / function(s) + context("\\the\\dimexpr %s",s) + end + + (C(lpegpatterns.float) + Cc(1)) * lpegpatterns.space^0 * P("\\") * C(lpegpatterns.letter^1) / function(f,s) + local t = textype(s) + if t == "dimen" then + context("\\the\\dimexpr %s\\%s\\relax",f,s) + elseif t == "count" then + context("\\the\\numexpr \\%s * %s\\relax",s,f) -- <n>\scratchcounter is not permitted + end + end + + local splitter = lpeg.splitat("::",true) + + interfaces.implement { + name = "prepareMPvariable", + arguments = "string", + actions = function(v) + if v == "" then + -- MPcolor("black") + context("black") + else + local typ, var = lpegmatch(splitter,v) + if not var then + -- parse + if colorhash[v] then + -- MPcolor(v) + context("%q",var) + elseif tonumber(v) then + context(v) + elseif not lpegmatch(dimenorname,v) then + context("\\number %s",v) -- 0.4 ... + end + elseif typ == "d" then -- to be documented + -- dimension + context("\\the\\dimexpr %s\\relax",var) + elseif typ == "n" then -- to be documented + -- number + context("\\the\\numexpr %s\\relax",var) + elseif typ == "s" then -- to be documented + -- string + -- context(var) + context("%q",var) + elseif typ == "c" then -- to be documented + -- color + -- MPcolor(var) + context("%q",var) + else + context(var) + end + end + end + } + +end + +do + + local ctx_mathematics = context.mathematics + + -- function metapost.formatnumber(f,n) -- just lua format + -- f = gsub(f,"@(%d)","%%.%1") + -- f = gsub(f,"@","%%") + -- f = format(f,tonumber(n) or 0) + -- f = gsub(f,"e([%+%-%d]+)",function(s) + -- return format("\\times10^{%s}",tonumber(s) or s) -- strips leading zeros + -- end) + -- context.mathematics(f) + -- end + + -- formatters["\\times10^{%N}"](s) -- strips leading zeros too + + local one = Cs((P("@")/"%%." * (R("09")^1) + P("@")/"%%" + 1)^0) + local two = Cs((P("e")/"" * ((S("+-")^0 * R("09")^1) / function(s) + -- return format("\\times10^{%s}",tonumber(s) or s) + return "\\times10^{" .. (tonumber(s) or s) .."}" + end) + 1)^1) + + -- local two = Cs((P("e")/"" * ((S("+-")^0 * R("09")^1) / formatters["\\times10^{%N}"]) + 1)^1) + + function metapost.formatnumber(fmt,n) -- just lua format + ctx_mathematics(lpegmatch(two,format(lpegmatch(one,fmt),n))) + end + +end + +do + + -- this is an old pass-data-to-tex mechanism + + local ctx_printtable = context.printtable + + local data = false + + function mp.mf_start_saving_data(n) + data = { } + end + + function mp.mf_stop_saving_data() + if data then + -- nothing + end + end + + function mp.mf_finish_saving_data() + if data then + -- nothing + end + end + + function mp.mf_save_data(str) + if data then + data[#data+1] = str + end + end + + local function getdata() + if data then + ctx_printtable(data,"\r") + end + end + + interfaces.implement { + name = "getMPdata", + public = true, + protected = true, + actions = getdata, + } + + interfaces.implement { + name = "rawMPdata", + public = true, + actions = getdata, + } + +end |