diff options
Diffstat (limited to 'tex/context/base/mkxl/math-act.lmt')
| -rw-r--r-- | tex/context/base/mkxl/math-act.lmt | 153 |
1 files changed, 120 insertions, 33 deletions
diff --git a/tex/context/base/mkxl/math-act.lmt b/tex/context/base/mkxl/math-act.lmt index f6fd5dab5..ee9e56f8f 100644 --- a/tex/context/base/mkxl/math-act.lmt +++ b/tex/context/base/mkxl/math-act.lmt @@ -433,6 +433,8 @@ local detail do return nxt end end + elseif list == "flataccent" then + return c.flataccent end end end @@ -1951,6 +1953,7 @@ do } local rrp = { + newprivateslot("radical rule left piece"), newprivateslot("radical rule middle piece"), newprivateslot("radical rule right piece"), } @@ -1968,14 +1971,21 @@ do parameters = { } end if parts then + what = copytable(what) parts = copytable(parts) - local xscale = parameters.xscale or 1 - local yscale = parameters.yscale or 1 - local mheight = minus.height - local height = (parameters.height or 1) * mheight - local yshift = (parameters.yoffset or 0) * mheight + local xscale = parameters.xscale or 1 -- why not applied to width ? + local yscale = parameters.yscale or 1 + local mwidth = minus.width + local mheight = minus.height + local height = (parameters.height or 1) * mheight + local yshift = (parameters.yoffset or 0) * mheight + local loverlap = parameters.leftoverlap or 0 + local roverlap = parameters.rightoverlap or 0 + local loffset = parameters.leftoffset or 0 + local roffset = parameters.rightoffset or 0 if skipfirst then - table.remove(parts,1) + remove(parts,1) + remove(what,1) end height = height / 2 yshift = yshift + height @@ -1985,36 +1995,46 @@ do local gdata = characters[glyph] local width = gdata.width local xshift = 0 - if i == 1 and parameters.leftoffset then - xshift = (parameters.leftoffset) * width + if i == 1 and loverlap ~= 0 then + xshift = loverlap * width width = width - xshift - elseif i == #parts and parameters.rightoffset then - width = (1 + parameters.rightoffset) * width + elseif i == #parts and roverlap ~= 0 then + width = width + roverlap * width end characters[what[i]] = { height = height, depth = height, width = width, + advance = gdata.width, commands = { leftcommand[xshift], downcommand[yshift], --- slotcommand[0][glyph], { "slot", 0, glyph, xscale, yscale }, }, } +if part["start"] >= width then + part["start"] = width +end +if part["end"] >= width then + part["end"] = width +end +part.advance = width part.glyph = what[i] - part.advance = width end + xshift = loffset * mwidth + loverlap * mwidth + width = mwidth - xshift - roffset * mwidth - roverlap * mwidth characters[unicode] = { + -- base character height = height, depth = height, - width = advance, + width = width, commands = { + leftcommand[xshift], downcommand[yshift], --- slotcommand[0][0x2212], { "slot", 0, 0x2212, xscale, yscale }, }, unicode = tounicode or unicode, + -- extensibles parts = parts, partsorientation = "horizontal", } @@ -2065,6 +2085,7 @@ do commands = { leftcommand[lshift], slotcommand[0][glyph], +-- { "offset", lshift, 0, glyph }, }, } part.glyph = what[i] @@ -2085,9 +2106,11 @@ do leftcommand[lshift], slotcommand[0][unicode], pop, +-- { "offset", lshift, 0, unicode }, }, }) - local step = width/2 +-- local step = width/2 + local step = .8*width minus.parts = { { extender = 0, glyph = p_normal, ["end"] = step, start = 0, advance = width }, { extender = 1, glyph = p_normal, ["end"] = step, start = step, advance = width }, @@ -2111,7 +2134,13 @@ do useminus(target,fbe,characters,fraction,false,frp,0x2044) -- division slash end if radical then - useminus(target,rbe,characters,radical,true,rrp,0x2061) -- apply function +if not characters[rbe] then + local skipfirst = true + if radical.skipfirst == false then -- explicit + skipfirst = false + end + useminus(target,rbe,characters,radical,skipfirst,rrp,0x2061) -- apply function +end end if stacker then useminus(target,0x203E,characters,stacker,false,frp) @@ -2739,15 +2768,31 @@ end if width == 0 then local d = chardata[data.unicode or unicode] local c = d and d.category - if c == "mn" then + if c == "mn" or c == "sk" or c == "lm" then -- we can probably can go local b = target.descriptions[unicode].boundingbox if b then - local llx = b[1] * factor - local urx = b[3] * factor - width = urx - llx + local topanchor = data.topanchor or 0 + local llx = b[1] * factor + local urx = b[3] * factor +-- if topanchor < 0 then +if true then + -- width = - topanchor + width = 2 * (topanchor - llx) +-- data.commands = { +-- -- rightcommand[width+width/2], +-- rightcommand[-llx], +-- slotcommand[0][unicode] +-- } +data.xoffset = -llx +else + width = urx - llx + -- data.advance = urx + data.commands = { + leftcommand[llx], + slotcommand[0][unicode] + } +end data.width = width - data.xoffset = - llx - data.advance = urx data.topanchor = width/2 data.bottomanchor = width/2 end @@ -2826,20 +2871,33 @@ end local force = parameters.force local squeeze = parameters.squeeze or 0.85 local ofactor = parameters.offset or (squeeze/8.5) - local hfactor = parameters.height or (1 - ofactor) + local hfactor = parameters.height or 0.95 -- (1 - ofactor) local done = false for stretching, entry in sortedhash(mapping) do - local code = stretching - local last = characters[stretching] + local code = stretching + local last = characters[stretching] while last do if force or not last.flataccent then local slot = nps(f_flat(code)) - local data = copytable(last) - local height = data.height or 0 - data.effect = { squeeze = squeeze } - data.height = hfactor * height - data.yoffset = ofactor * height - characters[slot] = data + local height = last.height or 0 +-- print(last.width/65536,code,slot) +-- data.effect = { squeeze = squeeze } +characters[slot] = { + width = last.width, + depth = last.depth, + height = last.height * hfactor, + topanchor = last.topanchor, + bottomanchor = last.bottomanchor, + commands = { { "offset", 0, ofactor * height, code, 1, squeeze } }, +-- commands = { slotcommand[0][code] }, +-- effect = { squeeze = squeeze }, +-- next = last.next, + unicode = last.unicode, +} +-- if code == 770 then +-- inspect(last) +-- end + last.flataccent = slot if not trace_tweaking then done = true @@ -2874,7 +2932,8 @@ end height = stretchingdata.height, depth = stretchingdata.depth, next = stretchingdata.next, - commands = { charcommand[stretching] }, +-- commands = { charcommand[stretching] }, + commands = stretchingdata.commands or { charcommand[stretching] }, topanchor = stretchingdata.topanchor, -- unicode = stretching, -- when we alias to combiners unicode = alias, -- when we keep the original @@ -2892,6 +2951,34 @@ end feedback_tweak("copyaccents",target,original,done) end + function mathtweaks.keepbases(target,original,parameters) + local characters = target.characters + local done = false + local list = parameters.list + if list == "default" then + list = sortedkeys(mapping) + end + if list and #list > 0 then + for i=1,#list do -- assumes sorting + local unicode = list[i] + local chardata = characters[unicode] + if chardata then + chardata.keepbase = true + if not trace_tweaking then + done = true + elseif done then + done[unicode] = true + else + done = { [unicode] = true } + end + end + end + else + -- maybe also hash + end + feedback_tweak("keepbases",target,original,done) + end + end do @@ -3782,7 +3869,7 @@ do end end - -- there is no real need for thios but let's play nice with memory anyway + -- there is no real need for this but let's play nice with memory anyway local efindex = 0 local effects = setmetatableindex (function (t,k) |