diff options
Diffstat (limited to 'tex/context/base/mkxl/math-act.lmt')
| -rw-r--r-- | tex/context/base/mkxl/math-act.lmt | 1083 |
1 files changed, 902 insertions, 181 deletions
diff --git a/tex/context/base/mkxl/math-act.lmt b/tex/context/base/mkxl/math-act.lmt index f0b132d66..7fb4f9b9f 100644 --- a/tex/context/base/mkxl/math-act.lmt +++ b/tex/context/base/mkxl/math-act.lmt @@ -23,6 +23,11 @@ local trace_tweaking = false trackers.register("math.tweaks", function(v) local report_math = logs.reporter("mathematics","initializing") local report_mathtweak = logs.reporter("mathematics","tweak") +local getfontoffamily = tex.getfontoffamily +local fontcharacters = fonts.hashes.characters +local chardata = characters.data +local extensibles = mathematics.extensibles + local context = context local commands = commands local mathematics = mathematics @@ -166,28 +171,6 @@ function mathematics.checkaccentbaseheight(target,original) end end --- function mathematics.checkprivateparameters(target,original) --- local mathparameters = target.mathparameters --- if mathparameters then --- local parameters = target.parameters --- local properties = target.properties --- if parameters then --- local size = parameters.size --- if size then --- -- gone --- elseif properties then --- report_math("invalid parameters in font %a",properties.fullname or "?") --- else --- report_math("invalid parameters in font") --- end --- elseif properties then --- report_math("no parameters in font %a",properties.fullname or "?") --- else --- report_math("no parameters and properties in font") --- end --- end --- end - function mathematics.overloadparameters(target,original) if use_math_goodies then local mathparameters = target.mathparameters @@ -200,6 +183,8 @@ function mathematics.overloadparameters(target,original) if mathematics then local parameters = mathematics.parameters local bigslots = mathematics.bigslots or mathematics.bigs +-- inspect(parameters) +-- print("before",mathparameters.AxisHeight) if parameters then if trace_defining then report_math("overloading math parameters in %a @ %p",target.properties.fullname,target.parameters.size) @@ -222,6 +207,7 @@ function mathematics.overloadparameters(target,original) end mathparameters[name] = newvalue end +-- print("after ",mathparameters.AxisHeight) for name, value in next, parameters do local tvalue = type(value) if tvalue == "string" then @@ -265,7 +251,7 @@ local function report_tweak(fmt,target,original,...) (target and target .shared.rawdata.metadata) local parameters = target.parameters report_mathtweak( - "%a, size %p, math size %i, %s", + "%a, size %P, math size %i, %s", metadata and metadata.fontname or "unknown", parameters.size or 655360, parameters.mathsize or 1, @@ -276,6 +262,39 @@ local function report_tweak(fmt,target,original,...) end end +mathtweaks.subsets = { + acenorsuvxz = { 0x1D44E, 0x1D450, 0x1D452, 0x1D45B, 0x1D45C, 0x1D45F, 0x1D460, 0x1D462, 0x1D463, 0x1D465, 0x1D467 }, + bhklt = { 0x1D44F, 0x1D455, 0x1D458, 0x1D459, 0x1D461 }, + d = { 0x1D451 }, + f = { 0x1D453 }, + gjqy = { 0x1D454, 0x1D457, 0x1D45E, 0x1D466 }, + i = { 0x1D456 }, + mw = { 0x1D45A, 0x1D464 }, + p = { 0x1D45D }, + dotless = { 0x00049, 0x0004A, 0x00131, 0x00237, 0x1D6A4, 0x1D6A5 }, + integrals = { 0x0222B, 0x0222C, 0x0222D, 0x0222E, 0x0222F, 0x02230, 0x02231, 0x02232, 0x02233, 0x02A0B, 0x02A0C, 0x02A0D, 0x02A0E, 0x02A0F, 0x02A10, 0x02A11, 0x02A12, 0x02A13, 0x02A14, 0x02A15, 0x02A16, 0x02A17, 0x02A18, 0x02A19, 0x02A1A, 0x02A1B, 0x02A1C }, +} + +local function getalso(target,original) + local also = target.tweakalso -- maybe + if not also then + also = { } + for k, v in sortedhash(target.characters) do + local u = v.unicode + if u and k ~= u then + local a = also[u] + if a then + a[#a+1] = k + else + also[u] = { k } + end + end + end + target.tweakalso = also + end + return also +end + -- { -- tweak = "dimensions", -- list = { @@ -398,32 +417,33 @@ do extend = factor, }, v) end - local original = v.original - if not original then + local originalslot = v.original + if not originalslot then local delta = v.delta if delta then - original = k + delta + originalslot = k + delta end end - if original then - original = mathgaps[original] or original - local data = targetcharacters[original] + if originalslot then + originalslot = mathgaps[originalslot] or originalslot + local data = targetcharacters[originalslot] if data then data = copytable(data) - data.unicode = original + data.unicode = originalslot targetcharacters[k] = data character = data else - report_mathtweak("no slot %U",original) + report_mathtweak("no slot %U",originalslot) return end end -- - local width = character.width - local height = character.height - local depth = character.depth - local italic = character.italic - local topaccent = character.topaccent + local width = character.width + local height = character.height + local depth = character.depth + local italic = character.italic + local topanchor = character.topanchor + local bottomanchor = character.bottomanchor -- local widthfactor = v.width local heightfactor = v.height @@ -442,7 +462,7 @@ do if advancefactor then character.advance = advancefactor * width else - character.advance = width -- so advance is oldwidth + character.advance = character.advance or width -- so advance is oldwidth end if widthfactor then character.width = widthfactor * width @@ -470,8 +490,11 @@ do end end if anchorfactor then - character.topaccent = anchorfactor * (topaccent or width) + character.topanchor = anchorfactor * (topanchor or width) end +-- if anchorfactor then +-- character.bottomaccent = anchorfactor * (bottomanchor or width) +-- end -- begin experiment local line = v.wline if line then @@ -575,12 +598,26 @@ end do + function mathtweaks.showinfo(target,original,parameters) + local mathparameters = target.mathparameters + for k, v in sortedhash(mathparameters) do + report_mathtweak("%s : %s",k,v) + end + end + +end + + +do + function mathtweaks.wipevariants(target,original,parameters) local list = parameters.list if list then local targetcharacters = target.characters -- local originalcharacters = original.characters local count = 0 + -- local also = getalso(target,original) + -- local done = { } for k, v in sortedhash(list) do local ori = targetcharacters[k] local nxt = ori.next @@ -675,17 +712,6 @@ do -- maybe we'll have a different name - mathtweaks.subsets = { - acenorsuvxz = { 0x1D44E, 0x1D450, 0x1D452, 0x1D45B, 0x1D45C, 0x1D45F, 0x1D460, 0x1D462, 0x1D463, 0x1D465, 0x1D467 }, - bhklt = { 0x1D44F, 0x1D455, 0x1D458, 0x1D459, 0x1D461 }, - d = { 0x1D451 }, - f = { 0x1D453 }, - gjqy = { 0x1D454, 0x1D457, 0x1D45E, 0x1D466 }, - i = { 0x1D456 }, - mw = { 0x1D45A, 0x1D464}, - p = { 0x1D45D }, - } - function mathtweaks.kernpairs(target,original,parameters) local list = parameters.list if list then @@ -749,37 +775,11 @@ end do - -- What a mess ... should be a different alphabet. - - local function expand(target,original,list,selector,feature) - if feature then - local getsubstitution = fonts.handlers.otf.getsubstitution - for _, char in next, list do - local variant = getsubstitution(original,char,feature,true) - if variant then - mathematics.addvariant(target,char,variant,selector) - end - end - else - for i, char in next, list do - mathematics.addvariant(target,char,0xFE800+i,selector) - end - end - end - function mathtweaks.variants(target,original,parameters) - local feature = parameters.feature - local selector = parameters.selector - local kind = parameters.kind - if kind == "script" then - if selector then - expand(target,original,mathematics.alphabets.sr.tf.lcletters,selector,feature) - expand(target,original,mathematics.alphabets.sr.tf.ucletters,selector,feature) - end - end + report_mathtweak("todo: remove 'variants' tweak from goodie file") end - mathtweaks.variant = mathtweaks.variants + mathtweaks.variant = mathtweaks.variants end @@ -1052,80 +1052,219 @@ do local factor = tonumber(parameters.factor) or 0 if factor ~= 0 then for k, v in next, targetcharacters do - local a = v.topaccent + local a = v.topanchor if a and a > 0 then - v.topaccent = a * factor + v.topanchor = a * factor end end end end - -- local default = { - -- "digitsnormal", - -- "lowercasedoublestruck", - -- "uppercasedoublestruck", - -- } + mathtweaks.fixaccents = mathtweaks.fixanchors + +end + +do + + -- actually this should be a an engine feature driven by category because we don't + -- want this in display mode .. only a test for MS and HH + + local issymbol = characters.is_symbol + + function mathtweaks.oldstylemath(target,original,parameters) + local characters = target.characters + local axis = target.mathparameters.AxisHeight + local delta = (parameters.factor or .1) * axis + target.mathparameters.AxisHeight = (axis - delta) + for k, v in sortedhash(characters) do + if issymbol[k] then -- quick hack, engine knows + v.yoffset = -delta + v.height = (v.height or 0) - delta + v.depth = (v.depth or 0) - delta + end + end + end - local function wipe(target,original,parameters,field) - local targetcharacters = target.characters +end + +do + + function mathtweaks.simplifykerns(target,original,parameters) + local characters = target.characters + local simplified = 0 + for k, v in sortedhash(characters) do + local mathkerns = v.mathkerns + if mathkerns then + local k = mathkerns.topleft + if k then + k = k[#k].kern + if k then + v.topleft = k + end + end + local k = mathkerns.topright + if k then + k = k[#k].kern + if k then + v.topright = k + end + end + local k = mathkerns.bottomleft + if k then + k = k[1].kern -- todo get value at baseline + if k then + v.bottomleft = k + end + end + local k = mathkerns.bottomright + if k then + k = k[1].kern -- todo get value at baseline + if k then + v.bottomright = k + end + end + v.mathkerns = nil + simplified = simplified + 1 + end + end + if simplified == 0 then + report_tweak("no need to simplify mathkerns",target,original) + elseif trace_tweaking then + report_tweak("%i mathkerns simplified",target,original,simplified) + end + end + +end + +do + + local function wipe(target,original,parameters,field,move,integrals) + local targetcharacters = target.characters + local targetdescriptions = target.descriptions + local factor = target.parameters.factor + local correct = parameters.correct + local function getllx(u) + local d = targetdescriptions[u] + if d then + local b = d.boundingbox + if b then + local llx = b[1] + if llx < 0 then + return - llx + end + end + end + return false + end local function step(s,l) - local done = false while s do - local c = targetcharacters[mathgaps[s] or s] + local u = mathgaps[s] or s + local c = targetcharacters[u] if c then - local v = c[field] - if v then - if trace_tweaking then - if l then - report_tweak("removing %a in range %a from %C",target,original,field,l,s) + if field == "topanchor" then + if c.topanchor then + c.topanchor = nil + else + goto smaller + end + else + local done = false + local italic = c.italic + if move then + local width = c.width or 0 + c.advance = width + if correct then + local llx = getllx(u) + if llx then + local topanchor = c.topanchor + llx = llx * factor + width = width + llx + c.xoffset = llx + if topanchor then + c.topanchor = topanchor + llx + end +-- if c.bottomleft or c.topleft then +-- print("BEFORE",c.bottomleft,c.topleft,llx) +-- c.bottomleft = (c.bottomleft or 0) - llx +-- c.topleft = (c.topleft or 0) - llx +-- print("AFTER",c.bottomleft,c.topleft,llx) +-- else + c.bottomleft = (c.bottomleft or 0) - llx + c.topleft = (c.topleft or 0) - llx +-- end + done = true + end + end + if italic and italic ~= 0 then + c.width = width + italic +-- print(">>>",bottomright) + c.bottomright = - italic +-- c.bottomright = c.bottomright - italic + done = true else - report_tweak("removing %a from %C",target,original,field,s) + c.width = width end end - c[field] = nil - done = true + if italic then + c.italic = nil + done = true + end + if not done then + goto smaller + end end + if trace_tweaking then + if l then + report_tweak("%s %a in range %a from %C","removing",target,original,field,l,s) + else + report_tweak("%s %a from %C","removing",target,original,field,s) + end + end + goto smaller + ::smaller:: s = c.smaller else break end end - return done end local list = parameters.list -- todo: ranges - -- if list == "default" then - -- list = default - -- else if type(list) == "string" then list = { list } end for i=1,#list do local l = list[i] - local r = blocks[l] - if r then - local done = false - for i=r.first,r.last do - if step(i,l) then - done = true - end - end - if not done and trace_tweaking then - report_mathtweak("there is no need to remove %a range %a",field,l) + if type(l) == "table" then + for i=1,#l do + step(i,l[i]) end else - stepper(l,step) + local r = blocks[l] + if r then + for i=r.first,r.last do + step(i,l) + end + else + stepper(l,step) + end end end end function mathtweaks.wipeanchors(target,original,parameters) - wipe(target,original,parameters,"topaccent") + wipe(target,original,parameters,"topanchor") end + mathtweaks.wipeaccents = mathtweaks.wipeanchors + function mathtweaks.wipeitalics(target,original,parameters) wipe(target,original,parameters,"italic") end + function mathtweaks.moveitalics(target,original,parameters) + wipe(target,original,parameters,"italic",true) + end + -- function mathtweaks.fixdigits(target,original,parameters) -- mathtweaks.fixanchors(target,original,{ list = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 } }) -- end @@ -1134,6 +1273,88 @@ end do + function mathtweaks.topanchors(target,original,parameters) + local characters = target.characters + local list = parameters.list + if list then + for k, v in sortedhash(list) do + local c = characters[k] + if c then + local w = c.width + if w and w ~= 0 then + c.topanchor = v * w + if trace_tweaking then + -- todo + end + end + end + end + -- todo: small + end + end + + mathtweaks.topaccents = mathtweaks.topanchors + + function mathtweaks.limits(target,original,parameters) + local characters = target.characters + local list = parameters.list + if list then + local factor = parameters.factor or 1 + local also = getalso(target,original) + local done = { } + local function relocate(u,factor) + if done[u] then + return + end + done[u] = true + local c = characters[u] + if c then + local italic = c.italic + if italic and italic ~= 0 then + local width = c.width or 0 + local half = (italic/2) * factor + c.topanchor = width + half + c.bottomanchor = width - half + c.bottomright = - italic + c.italic = nil + if trace_tweaking then + -- todo + end + end + local s = c.smaller + if s then + relocate(s,factor) + end + local n = c.next + if n then + relocate(n,factor) + end + if also then + local a = also[u] + if a then + for i=1,#a do + relocate(a[i],factor) + end + end + end + end + end + if #list > 0 then + for i=1,#list do + relocate(list[i],factor) + end + else + for k, v in sortedhash(list) do + relocate(k,tonumber(v) or factor) + end + end + end + end + +end + +do + -- musical timestamp: March 2022, Antonio Sanches (Bad Hombre), live performance in NL function mathtweaks.kerns(target,original,parameters) @@ -1178,12 +1399,14 @@ do local characters = target.characters local function setone(unicode,data) local chardata = characters[mathgaps[unicode] or unicode] - local width = chardata.width or 0 - local total = (chardata.height or 0) + (chardata.depth or 0) - local k = data.left ; if k and k ~= 0 then chardata.leftmargin = k * width end - local k = data.right ; if k and k ~= 0 then chardata.rightmargin = k * width end - local k = data.top ; if k and k ~= 0 then chardata.topmargin = k * total end - local k = data.bottom ; if k and k ~= 0 then chardata.bottommargin = k * total end + if chardata then + local width = chardata.width or 0 + local total = (chardata.height or 0) + (chardata.depth or 0) + local k = data.left ; if k and k ~= 0 then chardata.leftmargin = k * width end + local k = data.right ; if k and k ~= 0 then chardata.rightmargin = k * width end + local k = data.top ; if k and k ~= 0 then chardata.topmargin = k * total end + local k = data.bottom ; if k and k ~= 0 then chardata.bottommargin = k * total end + end end for unicode, data in next, margins do setone(unicode,data) -- withscriptcode(tfmdata,unicode,data,kernone) @@ -1398,39 +1621,39 @@ end do - local addprivate = fonts.helpers.addprivate - local privateslot = fonts.helpers.privateslot - - -- function mathtweaks.addrules(target,original,parameters) - -- local characters = target.characters - -- local height = target.mathparameters.OverbarRuleThickness - -- local depth = target.mathparameters.UnderbarRuleThickness - -- local width = target.parameters.emwidth/2 - -- local step = 0.8 * width - -- characters[0x203E] = { -- over - -- width = width, - -- height = height, - -- depth = 0, - -- unicode = 0x203E, - -- commands = { { "rule", height, width } }, - -- hparts = { - -- { advance = width, ["end"] = step, glyph = 0x203E, start = 0 }, - -- { advance = width, ["end"] = 0, glyph = 0x203E, start = step, extender = 1 }, - -- } - -- } - -- characters[0x0332] = { -- under - -- width = width, - -- height = 0, - -- depth = depth, - -- yoffset = -depth, - -- unicode = 0x0332, - -- commands = { { "rule", height, width } }, - -- hparts = { - -- { advance = width, ["end"] = step, glyph = 0x0332, start = 0 }, - -- { advance = width, ["end"] = 0, glyph = 0x0332, start = step, extender = 1 }, - -- } - -- } - -- end + local addprivate = fonts.helpers.addprivate + local privateslot = fonts.helpers.privateslot + + -- function mathtweaks.addrules(target,original,parameters) + -- local characters = target.characters + -- local height = target.mathparameters.OverbarRuleThickness + -- local depth = target.mathparameters.UnderbarRuleThickness + -- local width = target.parameters.emwidth/2 + -- local step = 0.8 * width + -- characters[0x203E] = { -- over + -- width = width, + -- height = height, + -- depth = 0, + -- unicode = 0x203E, + -- commands = { { "rule", height, width } }, + -- hparts = { + -- { advance = width, ["end"] = step, glyph = 0x203E, start = 0 }, + -- { advance = width, ["end"] = 0, glyph = 0x203E, start = step, extender = 1 }, + -- } + -- } + -- characters[0x0332] = { -- under + -- width = width, + -- height = 0, + -- depth = depth, + -- yoffset = -depth, + -- unicode = 0x0332, + -- commands = { { "rule", height, width } }, + -- hparts = { + -- { advance = width, ["end"] = step, glyph = 0x0332, start = 0 }, + -- { advance = width, ["end"] = 0, glyph = 0x0332, start = step, extender = 1 }, + -- } + -- } + -- end function mathtweaks.addrules(target,original,parameters) local characters = target.characters @@ -1787,6 +2010,9 @@ end do + -- mirror + -- smaller + local list = { 0x221A, } @@ -1802,11 +2028,19 @@ do end data.height = depth data.depth = height +if data.rorrim then + -- the original does the magic +else data.yoffset = depth - height +end + end + local smaller = data.smaller + if smaller then + fix(target,original,characters,smaller) end - local small = data.smaller - if small then - fix(target,original,characters,small) + local mirror = data.mirror + if mirror then + fix(target,original,characters,mirror) end end end @@ -1823,6 +2057,70 @@ end do + local done = nil + + local function fix(target,original,characters,unicode,axis) + if done[unicode] then + return + end + done[unicode] = true + local data = characters[unicode] + if data then + local height = data.height or 0 + local depth = data.depth or 0 + if trace_tweaking then + report_tweak("swapping height and depth of %U",target,original,unicode) + end + local half = (height + depth)/2 + if data.rorrim then + -- the original does the magic + else + data.yoffset = depth - (half - axis) + end + height = half + axis + depth = half - axis + data.height = height + data.depth = depth + local smaller = data.smaller + if smaller then + fix(target,original,characters,smaller,axis) + end + local mirror = data.mirror + if mirror then + fix(target,original,characters,mirror,axis) + end + local next = data.next + if next then + fix(target,original,characters,next,axis) + end + end + end + + function mathtweaks.fixoldschool(target,original,parameters) + local characters = target.characters + local list = mathtweaks.subsets.integrals + local also = getalso(target,original) + local axis = target.mathparameters.AxisHeight + done = { } + for i=1,#list do + local unicode = list[i] + fix(target,original,characters,unicode,axis) + end + if also then + local a = also[u] + if a then + for i=1,#a do + fix(target,original,characters,a[i],axis) + end + end + end + done = nil + end + +end + +do + local list = { 0x2061, 0x2062, 0x2063, 0x2064 } function mathtweaks.wipecues(target,original,parameters) @@ -1896,12 +2194,12 @@ characters[hat] = copytable(characters[0x0302]) -- TODO local alias = entry[1] local stretchingdata = characters[stretching] if stretchingdata and stretchingdata.width == 0 then - local topaccent = stretchingdata.topaccent or 0 - local width = -topaccent - topaccent = width/2 + local topanchor = stretchingdata.topanchor or 0 + local width = -topanchor + topanchor = width/2 stretchingdata.width = width - stretchingdata.topaccent = topaccent - stretchingdata.commands = { rightcommand[width + topaccent], charcommand[stretching] } + stretchingdata.topanchor = topanchor + stretchingdata.commands = { rightcommand[width + topanchor], charcommand[stretching] } if trace_tweaking then report_tweak("width of initial extensible accent %U set",target,original,stretching) end @@ -1925,7 +2223,7 @@ characters[hat] = copytable(characters[0x0302]) -- TODO local flataccent = last.flataccent if flataccent then characters[flataccent].extensible = true - end + end break end end @@ -1947,7 +2245,7 @@ characters[hat] = copytable(characters[0x0302]) -- TODO depth = stretchingdata.depth, next = stretchingdata.next, commands = { charcommand[stretching] }, - topaccent = stretchingdata.topaccent, + topanchor = stretchingdata.topanchor, -- unicode = stretching, -- when we aliasize to combiners unicode = alias, -- when we keep the original } @@ -2018,7 +2316,9 @@ do local linewidth = target.MathConstants.RadicalRuleThickness -- make option local basechar = characters[radical] local baseheight = basechar.height +/2 local basedepth = basechar.depth +/2 local basetotal = baseheight + basedepth local used = baseheight -- @@ -2188,7 +2488,7 @@ do } } if trace_tweaking then - report_tweak("fourier %U added using %U",target,original,basecode,fourier) + report_tweak("fourier %U added using %U",target,original,basecode,fouriercode) end end end @@ -2284,17 +2584,17 @@ do function mathtweaks.fixellipses(target,original,parameters) local characters = target.characters local function fix(normal,raised) - local normalone = characters[normal] - if normalone then - local raisedone = copytable(normalone) - characters[raised] = raisedone - raisedone.unicode = weird - local height = raisedone.height + local normaldata = characters[normal] + if normaldata then + local raiseddata = copytable(normaldata) + characters[raised] = raiseddata + raiseddata.unicode = raised + local height = raiseddata.height local yoffset = (parameters.yoffset or 2) * height - raisedone.yoffset = yoffset - raisedone.height = height + yoffset + raiseddata.yoffset = yoffset + raiseddata.height = height + yoffset if trace_tweaking then - report_tweak("taking %U from %U",target,original,weird,normal) + report_tweak("taking %U from %U",target,original,raised,normal) end end end @@ -2358,6 +2658,163 @@ end do + -- We started with the list that xits has in rtlm but most of them can be derived from + -- the database, and others need to be added. + + -- Checked while watching/listening to Dave Matthews Band: The Central Park Concert + -- (with superb solos by Warren Haynes), a DVD I bought around when we started with the + -- LUATEX advanture. + + local mirrors = { + + [0x0002F] = true, -- slashes + [0x0005C] = true, + [0x000F7] = true, + + [0x02032] = true, -- primes + [0x02033] = true, + [0x02034] = true, + [0x02057] = true, + [0x02035] = true, + [0x02036] = true, + [0x02037] = true, + + [0x0221A] = true, -- radicals + [0x0221B] = true, + [0x0221C] = true, + [0x0221D] = true, + + [0x0222B] = true, -- integrals + [0x0222C] = true, + [0x0222D] = true, + [0x0222E] = true, + [0x0222F] = true, + [0x02230] = true, + [0x02231] = true, + [0x02232] = true, + [0x02233] = true, + + [0x02A0A] = true, -- seen in xits (to be checked) + [0x02A0B] = true, + [0x02A0C] = true, + [0x02A0D] = true, + [0x02A0E] = true, + + [0x02140] = true, + [0x02201] = true, + [0x02202] = true, + [0x02203] = true, + [0x02204] = true, + [0x02211] = true, + + [0x02239] = true, + [0x0225F] = true, + [0x0228C] = true, + [0x022A7] = true, + [0x022AA] = true, + [0x022AC] = true, + [0x022AD] = true, + [0x022AE] = true, + [0x022AF] = true, + [0x022F5] = true, + [0x022F8] = true, + [0x022F9] = true, + [0x022FF] = true, + [0x02320] = true, + [0x02321] = true, + [0x027C0] = true, + [0x029DC] = true, + [0x029F4] = true, + + [0x02A0F] = true, + [0x02A10] = true, + [0x02A11] = true, + [0x02A12] = true, + [0x02A13] = true, + [0x02A14] = true, + [0x02A15] = true, + [0x02A16] = true, + [0x02A17] = true, + [0x02A18] = true, + [0x02A19] = true, + [0x02A1A] = true, + [0x02A1B] = true, + [0x02A1C] = true, + [0x02A20] = true, + + [0x02A74] = true, + [0x02AA3] = true, + [0x02AE2] = true, + [0x02AE6] = true, + [0x1D715] = true, + } + + local new = fonts.helpers.newprivateslot + + local function add(target,original,characters,unicode,what) + local data = characters[unicode] + if data then + if not data.mirror then + local slot = new("mirror."..unicode) + local mirror = copytable(data) + data.mirror = slot + mirror.rorrim = unicode -- so we can check later + mirror.commands = { + { "offset", data.width, 0, unicode, -1, 1 } + } + if trace_tweaking then + report_tweak("adding mirror %U (%s)",target,original,unicode,what) + end + characters[slot] = mirror + elseif trace_tweaking then + report_tweak("skipping mirror %U (%s)",target,original,unicode,what) + end + local hparts = data.hparts + if hparts then + for i=1,#hparts do + add(target,original,characters,hparts[i],"hpart") + end + end + local vparts = data.vparts + if vparts then + for i=1,#vparts do + add(target,original,characters,vparts[i],"vpart") + end + end + local smaller = data.smaller + if smaller then + add(target,original,characters,"smaller") + end + local next = data.next + if next then + add(target,original,characters,next,"next") + end + end + end + + -- todo: also check the rtlm table if present + + function mathtweaks.addmirrors(target,original,parameters) + local characters = target.characters + for unicode, detail in sortedhash(characters) do + local data = chardata[unicode] + if data and data.mirror then + add(target,original,characters,unicode,"mirror") + end + end + for unicode, detail in sortedhash(mirrors) do + if characters[unicode] then + add(target,original,characters,unicode,"character") + elseif trace_tweaking then + report_tweak("ignoring mirror %U (%s)",target,original,unicode,what) + end + end + end + +end + +do + local reported = { } function mathtweaks.version(target,original,parameters) @@ -2380,6 +2837,215 @@ do report_tweak() end reported[fontname] = true + target.tweakversion = version + end + end + end + +end + +do + + function mathtweaks.diagnose(target,original,parameters) + local characters = target.characters + for k, v in sortedhash(characters) do + local italic = v.italic + if italic then + report_tweak("italics: %U %p",target,original,k,italic) + end + end +-- inspect(characters[0xF0929]) + end + +end + +do + + function mathtweaks.setoptions(target,original,parameters) + local setlist = parameters.set or parameters.list + local resetlist = parameters.reset + if setlist or resetlist then + local properties = target.properties + local codes = tex.mathcontrolcodes + local oldcontrol = tex.get("mathfontcontrol") + local newcontrol = oldcontrol + -- todo: reset + if resetlist then + for i=1,#resetlist do + local v = tonumber(codes[resetlist[i]]) + if v then + newcontrol = newcontrol & (not v) + end + end + end + if setlist then + for i=1,#setlist do + local v = tonumber(codes[setlist[i]]) + if v then + newcontrol = newcontrol | v + end + end + end + newcontrol = newcontrol | codes.usefontcontrol + properties.mathcontrol = newcontrol + target.mathcontrol = newcontrol + if trace_tweaking then + report_tweak("forcing math font options 0x%08X instead of 0x08X",target,original,newcontrol,oldcontrol) + end + end + end + +end + +do + + function mathtweaks.setovershoots(target,original,parameters) + local list = parameters.list + if list then + local characters = target.characters + local emwidth = target.parameters.quad + for i=1,#list do + local entry = list[i] + local target = entry.target + local top = entry.topovershoot + local quad = entry.quad + if target and top then + local range = blocks[target] + if range then + if quad then + quad = emwidth + end + for r = range.first, range.last do + local unicode = mathgaps[r] or r + local data = characters[unicode] + if data then + data.topovershoot = top * (quad or data.width or 0) + end + end + if trace_tweaking then + report_mathtweak("setting overshoots for %a",target) + end + end + end + end + end + end + + -- there is no real need for thios but let's play nice with memory anyway + + local efindex = 0 + local effects = setmetatableindex (function (t,k) + efindex = efindex + 1 + local v = "tweakreplacealphabets" .. efindex + local e = fonts.specifiers.presetcontext(v,"",k) + -- print(k,v,e) + t[k] = v + return v + end) + + function mathtweaks.replacealphabets(target,original,parameters) + local feature = parameters.feature + local features = target.specification.features.normal + if not feature or features[feature] == true then + local list = parameters.list + if list then + local definedfont = fonts.definers.internal + local copiedglyph = fonts.handlers.vf.math.copy_glyph +-- does a deep copy, including parts and so + local getsubstitution = fonts.handlers.otf.getsubstitution + local fontdata = fonts.hashes.identifiers + -- + local fonts = target.fonts + local size = target.size + local characters = target.characters + -- compact: size = 655360 + if not fonts then + fonts = { } + target.fonts = fonts + end + if #fonts == 0 then + fonts[1] = { id = 0, size = size } -- self, will be resolved later + end + for i=1,#list do + local entry = list[i] + local filename = entry.filename + local feature = entry.feature + local thesource = entry.source + local thetarget = entry.target or thesource + if thesource and thetarget then + local sourcerange = type(thesource) == "table" and thesource or blocks[thesource] -- .gaps + local targetrange = type(thetarget) == "table" and thetarget or blocks[thetarget] -- .gaps + if sourcerange and targetrange then + local firsttarget = targetrange.first + local firstsource = sourcerange.first + local lastsource = sourcerange.last or firstsource + if firstsource and firsttarget then + local offset = firsttarget - firstsource + local topovershoot = entry.topovershoot + if filename then + local rscale = entry.rscale or 1 -- todo + size = size * rscale -- maybe use scale in vf command + -- load font, todo: set language and script, the effect hack is ugly + local fullname = filename + local effect = features.effect + if effect then + fullname = fullname .. "*" .. effects["effect={"..effect.."}"] + end + local id = definedfont { + name = fullname, + size = size, + } + local chars = fontchars[id] + local dropin = fontdata[id] + local index = #fonts + 1 + fonts[index] = { id = id, size = size } + -- copy characters + for s=firstsource,lastsource do + local t = s + offset + local sourceunicode = mathgaps[s] or s + local targetunicode = mathgaps[t] or t + if feature then + sourceunicode = getsubstitution(dropin,sourceunicode,feature,true,"math","dflt") or sourceunicode + end + if trace_tweaking then + report_mathtweak("copying %s %U from file %a to %s %U",thesource,sourceunicode,filename,thetarget,targetunicode) + end + characters[targetunicode] = copiedglyph(target,characters,chars,sourceunicode,index) + end + elseif feature then + for s=firstsource,lastsource do + local t = s + offset + local sourceunicode = mathgaps[s] or s + local targetunicode = mathgaps[t] or t + local variant = getsubstitution(original,sourceunicode,feature,true,"math","dflt") + local data = characters[variant] + if data then + if trace_tweaking then + report_mathtweak("copying %s %U from feature %a to %s %U",thesource,sourceunicode,feature,thetarget,targetunicode) + end + characters[targetunicode] = copytable(data) + end + end + else + for s=firstsource,lastsource do + local t = s + offset + local sourceunicode = mathgaps[s] or s + local targetunicode = mathgaps[t] or t + local data = characters[sourceunicode] + if data then + if trace_tweaking then + report_mathtweak("copying %s %U to %s %U",thesource,sourceunicode,thetarget,targetunicode) + end + characters[targetunicode] = copytable(data) + end + end + end + else + -- error + end + end + end + end end end end @@ -2418,7 +3084,10 @@ local function applytweaks(when,target,original) if type(tweak) == "table" then local action = mathtweaks[tweak.tweak or ""] if action then - if original then + local version = tweak.version + if version and version ~= target.tweakversion then + report_math("skipping tweak %a version %a",tweak.tweak,version) + elseif original then action(target,original,tweak) else action(target,tweak) @@ -2456,6 +3125,65 @@ function mathematics.tweakaftercopyingfont(target,original) end end +do + + local defaults = { + { + source = "uppercasescript", + target = "uppercasecalligraphic", + }, + { + source = "lowercasescript", + target = "lowercasecalligraphic", + }, + { + source = "uppercaseboldscript", + target = "uppercaseboldcalligraphic", + }, + { + source = "lowercaseboldscript", + target = "lowercaseboldcalligraphic", + }, + } + + function mathematics.checkaftercopyingfont(target,original) + local mathparameters = target.mathparameters -- why not hasmath + if mathparameters then + local characters = target.characters + -- + for i=1,#defaults do + -- we assume no ssty here yet .. todo + local default = defaults[i] + local block = blocks[default.target] + local first = block.first + local last = block.last + if not characters[mathgaps[first] or last] then + mathtweaks.replacealphabets(target,original,{ + tweak = "replacealphabets", + list = { default } + }) + end + end + -- + local addvariant = mathematics.addvariant + local function register(old,new) + for i, cold in next, old do + local cnew = new[i] + addvariant(target,cold,cold,0xFE00) + addvariant(target,cnew,cnew,0xFE01) + addvariant(target,cnew,cold,0xFE00) + addvariant(target,cold,cnew,0xFE01) + end + end + local sr = mathematics.alphabets.sr.tf + local ca = mathematics.alphabets.ca.tf + register(sr.ucletters,ca.ucletters) + register(sr.lcletters,ca.lcletters) + end + end + +end + function mathematics.beforepassingfonttotex(target) if use_math_goodies then local mathparameters = target.mathparameters -- why not hasmath @@ -2472,20 +3200,13 @@ sequencers.appendaction("mathparameters","system","mathematics.checkaccentbasehe sequencers.appendaction("beforecopyingcharacters","system","mathematics.tweakbeforecopyingfont") sequencers.appendaction("aftercopyingcharacters", "system","mathematics.tweakaftercopyingfont") +sequencers.appendaction("aftercopyingcharacters", "system","mathematics.checkaftercopyingfont") sequencers.appendaction("beforepassingfonttotex", "system","mathematics.beforepassingfonttotex") -- no, it's a feature now (see good-mth): -- -- sequencers.appendaction("aftercopyingcharacters", "system","mathematics.overloaddimensions") --- helpers - -local getfontoffamily = tex.getfontoffamily - -local fontcharacters = fonts.hashes.characters -local chardata = characters.data -local extensibles = mathematics.extensibles - -- we use numbers at the tex end (otherwise we could stick to chars) local e_left = extensibles.left @@ -2657,7 +3378,7 @@ function mathematics.finishfallbacks(target,specification,fallbacks) if trace_collecting then report_math("adding fallback characters to font %a",specification.hash) end - local definedfont = fonts.definers.internal + ----- definedfont = fonts.definers.internal local copiedglyph = fonts.handlers.vf.math.copy_glyph local fonts = target.fonts local size = specification.size -- target.size |