1if not modules then modules = { } end modules ['meta-ini'] = { 2 version = 1.001, 3 comment = "companion to meta-ini.mkiv", 4 author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", 5 copyright = "PRAGMA ADE / ConTeXt Development Team", 6 license = "see context related readme files" 7} 8 9local tonumber = tonumber 10local format = string.format 11local lpegmatch, lpegpatterns = lpeg.match, lpeg.patterns 12local P, Cs, R, S, C, Cc = lpeg.P, lpeg.Cs, lpeg.R, lpeg.S, lpeg.C, lpeg.Cc 13 14metapost = metapost or { } 15local metapost = metapost 16local context = context 17 18-- local colorhash = attributes.list[attributes.private('color')] 19-- local textype = tex.type 20-- local MPcolor = context.MPcolor 21-- 22-- do 23-- 24-- local dimenorname = 25-- lpegpatterns.validdimen / function(s) 26-- context("\\the\\dimexpr %s",s) 27-- end 28-- + (C(lpegpatterns.float) + Cc(1)) * lpegpatterns.space^0 * P("\\") * C(lpegpatterns.letter^1) / function(f,s) 29-- local t = textype(s) 30-- if t == "dimen" then 31-- context("\\the\\dimexpr %s\\%s\\relax",f,s) 32-- elseif t == "count" then 33-- context("\\the\\numexpr \\%s * %s\\relax",s,f) -- <n>\scratchcounter is not permitted 34-- end 35-- end 36-- 37-- local splitter = lpeg.splitat("::",true) 38-- 39-- interfaces.implement { 40-- name = "prepareMPvariable", 41-- arguments = "string", 42-- actions = function(v) 43-- if v == "" then 44-- -- MPcolor("black") 45-- context("black") 46-- else 47-- local typ, var = lpegmatch(splitter,v) 48-- if not var then 49-- -- parse 50-- if colorhash[v] then 51-- -- MPcolor(v) 52-- context("%q",var) 53-- elseif tonumber(v) then 54-- context(v) 55-- elseif not lpegmatch(dimenorname,v) then 56-- context("\\number %s",v) -- 0.4 ... 57-- end 58-- elseif typ == "d" then -- to be documented 59-- -- dimension 60-- context("\\the\\dimexpr %s\\relax",var) 61-- elseif typ == "n" then -- to be documented 62-- -- number 63-- context("\\the\\numexpr %s\\relax",var) 64-- elseif typ == "s" then -- to be documented 65-- -- string 66-- -- context(var) 67-- context("%q",var) 68-- elseif typ == "c" then -- to be documented 69-- -- color 70-- -- MPcolor(var) 71-- context("%q",var) 72-- else 73-- context(var) 74-- end 75-- end 76-- end 77-- } 78-- 79-- end 80 81do 82 83 local ctx_mathematics = context.mathematics 84 85 -- function metapost.formatnumber(f,n) -- just lua format 86 -- f = gsub(f,"@(%d)","%%.%1") 87 -- f = gsub(f,"@","%%") 88 -- f = format(f,tonumber(n) or 0) 89 -- f = gsub(f,"e([%+%-%d]+)",function(s) 90 -- return format("\\times10^{%s}",tonumber(s) or s) -- strips leading zeros 91 -- end) 92 -- context.mathematics(f) 93 -- end 94 95 -- formatters["\\times10^{%N}"](s) -- strips leading zeros too 96 97 local one = Cs((P("@")/"%%." * (R("09")^1) + P("@")/"%%" + 1)^0) 98 local two = Cs((P("e")/"" * ((S("+-")^0 * R("09")^1) / function(s) 99 -- return format("\\times10^{%s}",tonumber(s) or s) 100 return "\\times10^{" .. (tonumber(s) or s) .."}" 101 end) + 1)^1) 102 103 -- local two = Cs((P("e")/"" * ((S("+-")^0 * R("09")^1) / formatters["\\times10^{%N}"]) + 1)^1) 104 105 function metapost.formatnumber(fmt,n) -- just lua format 106 ctx_mathematics(lpegmatch(two,format(lpegmatch(one,fmt),n))) 107 end 108 109end 110 111do 112 113 -- this is an old pass-data-to-tex mechanism 114 115 local ctx_printtable = context.printtable 116 117 local data = false 118 119 function mp.mf_start_saving_data(n) 120 data = { } 121 end 122 123 function mp.mf_stop_saving_data() 124 if data then 125 -- nothing 126 end 127 end 128 129 function mp.mf_finish_saving_data() 130 if data then 131 -- nothing 132 end 133 end 134 135 function mp.mf_save_data(str) 136 if data then 137 data[#data+1] = str 138 end 139 end 140 141 local function getdata() 142 if data then 143 ctx_printtable(data,"\r") 144 end 145 end 146 147 interfaces.implement { 148 name = "getMPdata", 149 public = true, 150 protected = true, 151 actions = getdata, 152 } 153 154 interfaces.implement { 155 name = "rawMPdata", 156 public = true, 157 actions = getdata, 158 } 159 160end 161 |
