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|
------------------------
----- char-ini.lua -----
------------------------
-- local template_a = "\\startextendcatcodetable{%s}\\chardef\\l=11\\chardef\\a=13\\let\\c\\catcode%s\\let\\a\\undefined\\let\\l\\undefined\\let\\c\\undefined\\stopextendcatcodetable"
-- local template_b = "\\chardef\\l=11\\chardef\\a=13\\let\\c\\catcode%s\\let\\a\\undefined\\let\\l\\undefined\\let\\c\\undefined"
--
-- function characters.define(tobelettered, tobeactivated) -- catcodetables
-- local lettered, activated, l, a = { }, { }, 0, 0
-- for u, chr in next, data do
-- -- we can use a macro instead of direct settings
-- local fallback = chr.fallback
-- if fallback then
-- -- texprint(format("{\\catcode %s=13\\unexpanded\\gdef %s{\\checkedchar{%s}{%s}}}",u,utfchar(u),u,fallback))
-- texsprint("{\\catcode",u,"=13\\unexpanded\\gdef ",utfchar(u),"{\\checkedchar{",u,"}{",fallback,"}}}") -- no texprint
-- a = a + 1
-- activated[a] = "\\c"..u.."\\a"
-- else
-- local contextname = chr.contextname
-- local category = chr.category
-- if contextname then
-- if is_character[category] then
-- -- by this time, we're still in normal catcode mode
-- -- subtle: not "\\",contextname but "\\"..contextname
-- if chr.unicodeslot < 128 then
-- texprint(ctxcatcodes,format("\\chardef\\%s=%s",contextname,u))
-- else
-- texprint(ctxcatcodes,format("\\let\\%s=%s",contextname,utfchar(u)))
-- if is_letter[category] then
-- l = l + 1
-- lettered[l] = "\\c"..u.."\\l"
-- end
-- end
-- elseif is_command[category] then
-- -- this might change: contextcommand ipv contextname
-- -- texprint(format("{\\catcode %s=13\\unexpanded\\gdef %s{\\%s}}",u,utfchar(u),contextname))
-- texsprint("{\\catcode",u,"=13\\unexpanded\\gdef ",utfchar(u),"{\\"..contextname,"}}") -- no texprint
-- a = a + 1
-- activated[a] = "\\c"..u.."\\a"
-- end
-- elseif is_letter[category] then
-- if u >= 128 and u <= 65536 then -- catch private mess
-- l = l + 1
-- lettered[l] = "\\c"..u.."\\l"
-- end
-- end
-- end
-- local range = chr.range
-- if range then
-- l = l + 1
-- lettered[l] = format('\\dofastrecurse{"%05X}{"%05X}{1}{\\c\\fastrecursecounter\\l}',range.first,range.last)
-- end
-- end
-- -- if false then
-- l = l + 1
-- lettered[l] = "\\c"..0x200C.."\\l" -- non-joiner
-- l = l + 1
-- lettered[l] = "\\c"..0x200D.."\\l" -- joiner
-- -- fi
-- if tobelettered then
-- lettered = concat(lettered)
-- if true then
-- texsprint(ctxcatcodes,format(template_b,lettered)) -- global
-- else
-- for l=1,#tobelettered do
-- texsprint(ctxcatcodes,format(template_a,tobelettered[l],lettered))
-- end
-- end
-- end
-- if tobeactivated then
-- activated = concat(activated)
-- for a=1,#tobeactivated do
-- texsprint(ctxcatcodes,format(template_a,tobeactivated[a],activated))
-- end
-- end
-- end
--
-- function characters.setcodes()
-- for code, chr in next, data do
-- local cc = chr.category
-- if cc == 'll' or cc == 'lu' or cc == 'lt' then
-- local lc, uc = chr.lccode, chr.uccode
-- if not lc then chr.lccode, lc = code, code end
-- if not uc then chr.uccode, uc = code, code end
-- texsprint(ctxcatcodes,format("\\setcclcuc{%i}{%i}{%i}",code,lc,uc))
-- end
-- if cc == "lu" then
-- texprint(ctxcatcodes,"\\sfcode ",code,"999 ")
-- end
-- if cc == "lo" then
-- local range = chr.range
-- if range then
-- texsprint(ctxcatcodes,format('\\dofastrecurse{"%05X}{"%05X}{1}{\\setcclcucself\\fastrecursecounter}',range.first,range.last))
-- end
-- end
-- end
-- end
-- --[[ldx--
-- <p>The next variant has lazy token collecting, on a 140 page mk.tex this saves
-- about .25 seconds, which is understandable because we have no graphemes and
-- not collecting tokens is not only faster but also saves garbage collecting.
-- </p>
-- --ldx]]--
--
-- function utffilters.collapse(str,filename) -- we can make high a seperate pass (never needed with collapse)
-- if skippable[filesuffix(filename)] then
-- return str
-- -- elseif find(filename,"^virtual://") then
-- -- return str
-- -- else
-- -- -- print("\n"..filename)
-- end
-- if str and str ~= "" then
-- local nstr = #str
-- if nstr > 1 then
-- if initialize then -- saves a call
-- initialize()
-- end
-- local tokens, t, first, done, n = { }, 0, false, false, 0
-- for second in utfcharacters(str) do
-- if done then
-- if first then
-- if second == " " then
-- t = t + 1
-- tokens[t] = first
-- first = second
-- else
-- -- local crs = high[second]
-- -- if crs then
-- -- t = t + 1
-- -- tokens[t] = first
-- -- first = crs
-- -- else
-- local cgf = graphemes[first]
-- if cgf and cgf[second] then
-- first = cgf[second]
-- else
-- t = t + 1
-- tokens[t] = first
-- first = second
-- end
-- -- end
-- end
-- elseif second == " " then
-- first = second
-- else
-- -- local crs = high[second]
-- -- if crs then
-- -- first = crs
-- -- else
-- first = second
-- -- end
-- end
-- elseif second == " " then
-- first = nil
-- n = n + 1
-- else
-- -- local crs = high[second]
-- -- if crs then
-- -- for s in utfcharacters(str) do
-- -- if n == 1 then
-- -- break
-- -- else
-- -- t = t + 1
-- -- tokens[t] = s
-- -- n = n - 1
-- -- end
-- -- end
-- -- if first then
-- -- t = t + 1
-- -- tokens[t] = first
-- -- end
-- -- first = crs
-- -- done = true
-- -- else
-- local cgf = graphemes[first]
-- if cgf and cgf[second] then
-- for s in utfcharacters(str) do
-- if n == 1 then
-- break
-- else
-- t = t + 1
-- tokens[t] = s
-- n = n - 1
-- end
-- end
-- first = cgf[second]
-- done = true
-- else
-- first = second
-- n = n + 1
-- end
-- -- end
-- end
-- end
-- if done then
-- if first then
-- t = t + 1
-- tokens[t] = first
-- end
-- return concat(tokens) -- seldom called
-- end
-- elseif nstr > 0 then
-- return high[str] or str -- this will go from here
-- end
-- end
-- return str
-- end
-- function utffilters.decompose(str)
-- if str and str ~= "" then
-- local nstr = #str
-- if nstr > 1 then
-- -- if initialize then -- saves a call
-- -- initialize()
-- -- end
-- local tokens, t, done, n = { }, 0, false, 0
-- for s in utfcharacters(str) do
-- local dec = decomposed[s]
-- if dec then
-- if not done then
-- if n > 0 then
-- for s in utfcharacters(str) do
-- if n == 0 then
-- break
-- else
-- t = t + 1
-- tokens[t] = s
-- n = n - 1
-- end
-- end
-- end
-- done = true
-- end
-- t = t + 1
-- tokens[t] = dec
-- elseif done then
-- t = t + 1
-- tokens[t] = s
-- else
-- n = n + 1
-- end
-- end
-- if done then
-- return concat(tokens) -- seldom called
-- end
-- end
-- end
-- return str
-- end
-- local replacer = nil
-- local finder = nil
--
-- function utffilters.decompose(str) -- 3 to 4 times faster than the above
-- if not replacer then
-- if initialize then
-- initialize()
-- end
-- local tree = utfchartabletopattern(decomposed)
-- finder = lpeg.finder(tree,false,true)
-- replacer = lpeg.replacer(tree,decomposed,false,true)
-- end
-- if str and str ~= "" and #str > 1 and lpegmatch(finder,str) then
-- return lpegmatch(replacer,str)
-- end
-- return str
-- end
|
