diff options
Diffstat (limited to 'tex/context/base/mkxl/char-tex.lmt')
| -rw-r--r-- | tex/context/base/mkxl/char-tex.lmt | 219 |
1 files changed, 170 insertions, 49 deletions
diff --git a/tex/context/base/mkxl/char-tex.lmt b/tex/context/base/mkxl/char-tex.lmt index 918b6cc39..3d8f6a259 100644 --- a/tex/context/base/mkxl/char-tex.lmt +++ b/tex/context/base/mkxl/char-tex.lmt @@ -8,7 +8,7 @@ if not modules then modules = { } end modules ['char-tex'] = { local lpeg = lpeg local tonumber, next, type = tonumber, next, type -local format, find, gmatch, match = string.format, string.find, string.gmatch, string.match +local format, find, gmatch, match, gsub = string.format, string.find, string.gmatch, string.match, string.gsub local utfchar, utfbyte = utf.char, utf.byte local concat, tohash = table.concat, table.tohash local P, C, R, S, V, Cs, Cc = lpeg.P, lpeg.C, lpeg.R, lpeg.S, lpeg.V, lpeg.Cs, lpeg.Cc @@ -28,6 +28,9 @@ local texcharacters = { } characters.tex = texcharacters local utffilters = characters.filters.utf +local allocate = utilities.storage.allocate or function() return { } end +local mark = utilities.storage.mark or allocate + local is_character = characters.is_character local is_letter = characters.is_letter local is_command = characters.is_command @@ -393,61 +396,100 @@ texcharacters.strtoutfpattern = toutfpattern texcharacters.strtextoutf = textoutf local collapse = utffilters.collapse +local combine = utffilters.combine --- +if not interfaces then return end + +local implement = interfaces.implement local pattern -local hash = { - ["acute"] = "́", -- 0x300 - ["breve"] = "̆", -- 0x301 - ["caron"] = "̌", -- 0x302 - ["cedilla"] = "̧", -- 0x303 - ["circumflex"] = "̂", -- 0x304 - ["diaeresis"] = "̈", -- 0x305 - ["dieresis"] = "̈", -- 0x305 - ["umlaut"] = "̈", -- 0x305 - ["dot"] = "̇", -- 0x306 - ["doublegrave"] = "̏", -- 0x307 - ["doubleverticalline"] = "̎", -- 0x308 - ["grave"] = "̀", -- 0x309 - ["hook"] = "̉", -- 0x30A - ["hungarumlaut"] = "̋", -- 0x30B - ["macron"] = "̄", -- 0x30C - ["ogonek"] = "̨", -- 0x30D -- hm - ["overline"] = "̅", -- 0x30E - ["ring"] = "̊", -- 0x30F - ["tilde"] = "̃", -- 0x327 - ["verticalline"] = "̍", -- 0x328 -} +local verbosemarks = characters.verbosemarks + +if verbosemarks then + + mark(verbosemarks) + +else + + verbosemarks = allocate { + ["stroke"] = utfchar(0x02F), ["slash"] = utfchar(0x02F), + ["middle dot"] = utfchar(0x0B7), + + ["grave"] = utfchar(0x300), + ["acute"] = utfchar(0x301), + ["circumflex"] = utfchar(0x302), + ["tilde"] = utfchar(0x303), + ["macron"] = utfchar(0x304), ["line"] = utfchar(0x304), + ["overline"] = utfchar(0x305), + ["breve"] = utfchar(0x306), + ["dot"] = utfchar(0x307), + ["dieresis"] = utfchar(0x308), ["diaeresis"] = utfchar(0x308), + ["hook"] = utfchar(0x309), + ["ring"] = utfchar(0x30A), + ["double acute"] = utfchar(0x30B), ["hungarumlaut"] = utfchar(0x30B), -- tex speak + ["caron"] = utfchar(0x30C), + ["vertical line"] = utfchar(0x30D), + ["double vertical line"] = utfchar(0x30E), + ["double grave"] = utfchar(0x30F), + ["inverted breve"] = utfchar(0x311), + ["dot below"] = utfchar(0x323), + ["ring below"] = utfchar(0x325), + ["cedilla"] = utfchar(0x327), ["comma below"] = utfchar(0x327), + ["ogonek"] = utfchar(0x328), + ["caron below"] = utfchar(0x32C), + ["circumflex below"] = utfchar(0x32D), + ["tilde below"] = utfchar(0x330), + ["macron below"] = utfchar(0x331), ["line below"] = utfchar(0x331), + + ["hook below"] = utfchar(0x1FA9D), + } + + characters.verbosemarks = verbosemarks + + if storage then + storage.register("characters/verbosemarks", verbosemarks, "characters.verbosemarks") + end + +end local function prepare() - pattern = Cs((utfchartabletopattern(hash) / hash + lpegpatterns.space/"" + lpegpatterns.utf8character)^0) + pattern = Cs((utfchartabletopattern(verbosemarks) / verbosemarks + lpegpatterns.space/"" + lpegpatterns.utf8character)^0) return pattern end local hash = table.setmetatableindex(function(t,k) local f = "" k = lpegmatch(pattern or prepare(),k) or k - local v = collapse(k) or k - if k == v then - v = commandmapping[k] or k - if k ~= v then - f = "\\" - end - end - if k == v then - v = textoutf(k) or k - if k ~= v then - f = "\\" - end - end + local v = collapse(k) or k -- char specials +-- print("collapse",k,v) + if k ~= v then + goto DONE + end + v = combine(k) or k -- with specials +-- print("combine",k,v) + if k ~= v then + goto DONE + end + v = commandmapping[k] or k +-- print("command",k,v) + if k ~= v then + f = "\\" + goto DONE + end + v = textoutf(k) or k +-- print("utf",k,v) + if k ~= v then + f = "\\" + goto DONE + end + ::DONE:: report_defining("instead of old school '%s%s' you can input the utf sequence %s",f,k,v) t[k] = v return v end) -interfaces.implement { +implement { name = "chr", arguments = "argument", public = true, @@ -472,10 +514,6 @@ end -- all kind of initializations -if not interfaces then return end - -local implement = interfaces.implement - local tex = tex local texsetlccode = tex.setlccode local texsetsfcode = tex.setsfcode @@ -504,11 +542,11 @@ local texsetchar = tokens.setters.char -- end function texcharacters.defineaccents() - -- local ctx_dodefinecombine = context.dodefinecombine + local ctx_dodefinecombine = context.dodefinecombine local ctx_dodefinecommand = context.dodefinecommand - -- for accent, group in next, accentmapping do - -- ctx_dodefinecombine(accent) - -- end + for verbose, mark in next, verbosemarks do + ctx_dodefinecombine((gsub(verbose," ","")),mark) + end for command, mapping in next, commandmapping do ctx_dodefinecommand(command,mapping) end @@ -856,7 +894,7 @@ local function overload(c,u,code,codes) end end -interfaces.implement { +implement { name = "overloaduppercase", arguments = "2 strings", actions = function(c,u) @@ -864,10 +902,93 @@ interfaces.implement { end } -interfaces.implement { +implement { name = "overloadlowercase", arguments = "2 strings", actions = function(c,u) overload(c,u,"lccode","lccodes") end } + +-- Just for fun we support keywords: +-- +-- \startTEXpage[offset=10pt] +-- abg" +-- \sl \showboxes +-- \accent `" h% +-- \accent `" x% +-- \accent yoffset .2ex `" x +-- \accent yoffset 1.1ex `x x% +-- \stopTEXpage +-- +-- We could do this: +-- +-- \startTEXpage[offset=10pt] +-- abg" +-- \sl \showboxes +-- \withaccent `" h% +-- \withaccent `" x% +-- \withaccent yoffset .2ex `" x +-- \withaccent yoffset 1.1ex accent `x base `x% +-- \stopTEXpage +-- +-- But only when users demand it: +-- +-- do +-- +-- local new_glyph = nodes.pool.glyph +-- +-- local scankeyword = tokens.scanners.keyword +-- local scaninteger = tokens.scanners.integer +-- local scandimension = tokens.scanners.dimension +-- local scantoken = tokens.scanners.token +-- +-- implement { +-- name = "withaccent", +-- public = true, +-- protected = true, +-- actions = function() +-- local xoffset = 0 +-- local yoffset = 0 +-- local accent = false +-- local base = false +-- local zwj = 0x200D +-- while true do +-- if scankeyword("xoffset") then +-- xoffset = scandimension() +-- elseif scankeyword("yoffset") then +-- yoffset = scandimension() +-- elseif scankeyword("accent") then +-- accent = scaninteger() +-- elseif scankeyword("base") then +-- base = scaninteger() +-- else +-- break +-- end +-- end +-- if not accent then +-- accent = scaninteger() +-- end +-- if not base then +-- local nxttok = scantoken() +-- base = nxttok.cmdname == "char_number" and scaninteger() or nxttok.index +-- end +-- if base and accent and base > 0 and accent > 0 then +-- base = new_glyph(true,base) +-- zwj = new_glyph(true,zwj) +-- accent = new_glyph(true,accent) +-- local slant = fonts.hashes.parameters[true].slant / 65536 -- a la tex +-- local xheight = fonts.hashes.parameters[true].xheight -- hm, compensated for glyphscale? +-- accent.xoffset = xoffset - .5*(base.width -accent.width) + .5*(base.height-accent.height) * slant +-- accent.yoffset = yoffset - (xheight - accent.height) +-- accent.left = accent.width +-- accent.options = accent.options | 0x40 | 0x80 +-- context.dontleavehmode() +-- context(base) +-- context(zwj) +-- context(accent) +-- end +-- end, +-- } +-- +-- end |