diff options
Diffstat (limited to 'tex/context/base/math-ini.lua')
| -rw-r--r-- | tex/context/base/math-ini.lua | 179 |
1 files changed, 133 insertions, 46 deletions
diff --git a/tex/context/base/math-ini.lua b/tex/context/base/math-ini.lua index 7ba1d4514..6be06e634 100644 --- a/tex/context/base/math-ini.lua +++ b/tex/context/base/math-ini.lua @@ -16,19 +16,18 @@ if not modules then modules = { } end modules ['math-ini'] = { -- then we also have to set the other characters (only a subset done now) local formatters, find = string.formatters, string.find -local utfchar, utfbyte = utf.char, utf.byte -local setmathcode, setdelcode = tex.setmathcode, tex.setdelcode -local settexattribute = tex.setattribute +local utfchar, utfbyte, utflength = utf.char, utf.byte, utf.length local floor = math.floor -local context = context +local context = context +local commands = commands -local contextsprint = context.sprint -local contextfprint = context.fprint -- a bit inefficient +local contextsprint = context.sprint +local contextfprint = context.fprint -- a bit inefficient -local trace_defining = false trackers.register("math.defining", function(v) trace_defining = v end) +local trace_defining = false trackers.register("math.defining", function(v) trace_defining = v end) -local report_math = logs.reporter("mathematics","initializing") +local report_math = logs.reporter("mathematics","initializing") mathematics = mathematics or { } local mathematics = mathematics @@ -40,6 +39,10 @@ local unsetvalue = attributes.unsetvalue local allocate = utilities.storage.allocate local chardata = characters.data +local texsetattribute = tex.setattribute +local setmathcode = tex.setmathcode +local setdelcode = tex.setdelcode + local families = allocate { mr = 0, mb = 1, @@ -87,6 +90,7 @@ local classes = allocate { large = 1, -- op variable = 7, -- alphabetic number = 7, -- alphabetic + root = 16, -- a private one } local open_class = 4 @@ -151,6 +155,10 @@ local function radical(family,slot) return formatters['\\Uradical "%X "%X '](family,slot) end +local function root(family,slot) + return formatters['\\Uroot "%X "%X '](family,slot) +end + local function mathchardef(name,class,family,slot) return formatters['\\Umathchardef\\%s "%X "%X "%X '](name,class,family,slot) end @@ -191,29 +199,42 @@ local setmathcharacter = function(class,family,slot,unicode,mset,dset) return mset, dset end +local f_accent = formatters[ [[\ugdef\%s{\Umathaccent 0 "%X "%X }]] ] +local f_topaccent = formatters[ [[\ugdef\%s{\Umathaccent 0 "%X "%X }]] ] +local f_botaccent = formatters[ [[\ugdef\%s{\Umathbotaccent 0 "%X "%X }]] ] +local f_over = formatters[ [[\ugdef\%s{\Udelimiterover "%X "%X }]] ] +local f_under = formatters[ [[\ugdef\%s{\Udelimiterunder "%X "%X }]] ] +local f_fence = formatters[ [[\ugdef\%s{\Udelimiter "%X "%X "%X }]] ] +local f_delimiter = formatters[ [[\ugdef\%s{\Udelimiter 0 "%X "%X }]] ] +local f_radical = formatters[ [[\ugdef\%s{\Uradical "%X "%X }]] ] +local f_root = formatters[ [[\ugdef\%s{\Uroot "%X "%X }]] ] +----- f_char = formatters[ [[\ugdef\%s{\Umathchar "%X "%X "%X }]] +local f_char = formatters[ [[\Umathchardef\%s "%X "%X "%X ]] ] + local setmathsymbol = function(name,class,family,slot) -- hex is nicer for tracing if class == classes.accent then - contextsprint(formatters[ [[\ugdef\%s{\Umathaccent 0 "%X "%X }]] ](name,family,slot)) + contextsprint(f_accent(name,family,slot)) elseif class == classes.topaccent then - contextsprint(formatters[ [[\ugdef\%s{\Umathaccent 0 "%X "%X }]] ](name,family,slot)) + contextsprint(f_topaccent(name,family,slot)) elseif class == classes.botaccent then - contextsprint(formatters[ [[\ugdef\%s{\Umathbotaccent 0 "%X "%X }]] ](name,family,slot)) + contextsprint(f_botaccent(name,family,slot)) elseif class == classes.over then - contextsprint(formatters[ [[\ugdef\%s{\Udelimiterover "%X "%X }]] ](name,family,slot)) + contextsprint(f_over(name,family,slot)) elseif class == classes.under then - contextsprint(formatters[ [[\ugdef\%s{\Udelimiterunder "%X "%X }]] ](name,family,slot)) + contextsprint(f_under(name,family,slot)) elseif class == open_class or class == close_class or class == middle_class then setdelcode("global",slot,{family,slot,0,0}) - contextsprint(formatters[ [[\ugdef\%s{\Udelimiter "%X "%X "%X }]] ](name,class,family,slot)) + contextsprint(f_fence(name,class,family,slot)) elseif class == classes.delimiter then setdelcode("global",slot,{family,slot,0,0}) - contextsprint(formatters[ [[\ugdef\%s{\Udelimiter 0 "%X "%X }]] ](name,family,slot)) + contextsprint(f_delimiter(name,family,slot)) elseif class == classes.radical then - contextsprint(formatters[ [[\ugdef\%s{\Uradical "%X "%X }]] ](name,family,slot)) + contextsprint(f_radical(name,family,slot)) + elseif class == classes.root then + contextsprint(f_root(name,family,slot)) else -- beware, open/close and other specials should not end up here - -- contextsprint(formatters[ [[\ugdef\%s{\Umathchar "%X "%X "%X }]],name,class,family,slot)) - contextsprint(formatters[ [[\Umathchardef\%s "%X "%X "%X ]] ](name,class,family,slot)) + contextsprint(f_char(name,class,family,slot)) end end @@ -313,30 +334,55 @@ function mathematics.define(family) end -- needed for mathml analysis - +-- string with # > 1 are invalid -- we could cache +local lpegmatch = lpeg.match + +local utf8byte = lpeg.patterns.utf8byte * lpeg.P(-1) + +-- function somechar(c) +-- local b = lpegmatch(utf8byte,c) +-- return b and chardata[b] +-- end + + +local somechar = { } + +table.setmetatableindex(somechar,function(t,k) + local b = lpegmatch(utf8byte,k) + local v = b and chardata[b] or false + t[k] = v + return v +end) + local function utfmathclass(chr, default) - local cd = chardata[utfbyte(chr)] + local cd = somechar[chr] return cd and cd.mathclass or default or "unknown" end -local function utfmathaccent(chr,default,asked) - local cd = chardata[utfbyte(chr)] +local function utfmathaccent(chr,default,asked1,asked2) + local cd = somechar[chr] if not cd then return default or false end - if asked then + if asked1 and asked1 ~= "" then local mc = cd.mathclass - if mc and mc == asked then + if mc and (mc == asked1 or mc == asked2) then return true end local ms = cd.mathspec + if not ms then + local mp = cd.mathparent + if mp then + ms = chardata[mp].mathspec + end + end if ms then for i=1,#ms do local msi = ms[i] local mc = msi.class - if mc and mc == asked then + if mc and (mc == asked1 or mc == asked2) then return true end end @@ -360,32 +406,38 @@ local function utfmathaccent(chr,default,asked) return default or false end -local function utfmathstretch(chr, default) -- "h", "v", "b", "" - local cd = chardata[utfbyte(chr)] +local function utfmathstretch(chr,default) -- "h", "v", "b", "" + local cd = somechar[chr] return cd and cd.mathstretch or default or "" end -local function utfmathcommand(chr,default,asked) --- local cd = chardata[utfbyte(chr)] --- local cmd = cd and cd.mathname --- return cmd or default or "" - local cd = chardata[utfbyte(chr)] +local function utfmathcommand(chr,default,asked1,asked2) + local cd = somechar[chr] if not cd then return default or "" end - if asked then + if asked1 then local mn = cd.mathname local mc = cd.mathclass - if mn and mc and mc == asked then + if mn and mc and (mc == asked1 or mc == asked2) then return mn end local ms = cd.mathspec + if not ms then + local mp = cd.mathparent + if mp then + ms = chardata[mp].mathspec + end + end if ms then for i=1,#ms do local msi = ms[i] local mn = msi.name - if mn and msi.class == asked then - return mn + if mn then + local mc = msi.class + if mc == asked1 or mc == asked2 then + return mn + end end end end @@ -409,7 +461,7 @@ local function utfmathcommand(chr,default,asked) end local function utfmathfiller(chr, default) - local cd = chardata[utfbyte(chr)] + local cd = somechar[chr] local cmd = cd and (cd.mathfiller or cd.mathname) return cmd or default or "" end @@ -430,17 +482,31 @@ function commands.doifelseutfmathaccent(chr,asked) commands.doifelse(utfmathaccent(chr,nil,asked)) end +function commands.utfmathcommandabove(asked) context(utfmathcommand(asked,nil,"topaccent","over" )) end +function commands.utfmathcommandbelow(asked) context(utfmathcommand(asked,nil,"botaccent","under")) end + +function commands.doifelseutfmathabove(chr) commands.doifelse(utfmathaccent(chr,nil,"topaccent","over" )) end +function commands.doifelseutfmathbelow(chr) commands.doifelse(utfmathaccent(chr,nil,"botaccent","under")) end + -- helpers +-- +-- 1: step 1 +-- 2: step 2 +-- 3: htdp * 1.33^n +-- 4: size * 1.33^n -function mathematics.big(tfmdata,unicode,n) +function mathematics.big(tfmdata,unicode,n,method) local t = tfmdata.characters local c = t[unicode] - if c then + if c and n > 0 then local vv = c.vert_variants or c.next and t[c.next].vert_variants if vv then local vvn = vv[n] return vvn and vvn.glyph or vv[#vv].glyph or unicode - else + elseif method == 1 or method == 2 then + if method == 2 then -- large steps + n = n * 2 + end local next = c.next while next do if n <= 1 then @@ -455,6 +521,27 @@ function mathematics.big(tfmdata,unicode,n) end end end + else + local size = 1.33^n + if method == 4 then + size = tfmdata.parameters.size * size + else -- if method == 3 then + size = (c.height + c.depth) * size + end + local next = c.next + while next do + local cn = t[next] + if (cn.height + cn.depth) >= size then + return next + else + local tn = cn.next + if tn then + next = tn + else + return next + end + end + end end end return unicode @@ -491,10 +578,10 @@ end -- -- function commands.taggedmathfunction(tag,label) -- if label then --- settexattribute(a_mathcategory,registercategory(1,tag,tag)) +-- texsetattribute(a_mathcategory,registercategory(1,tag,tag)) -- context.mathlabeltext(tag) -- else --- settexattribute(a_mathcategory,1) +-- texsetattribute(a_mathcategory,1) -- context(tag) -- end -- end @@ -517,13 +604,13 @@ function commands.taggedmathfunction(tag,label,apply) noffunctions = noffunctions + 1 functions[noffunctions] = tag functions[tag] = noffunctions - settexattribute(a_mathcategory,noffunctions + delta) + texsetattribute(a_mathcategory,noffunctions + delta) else - settexattribute(a_mathcategory,n + delta) + texsetattribute(a_mathcategory,n + delta) end context.mathlabeltext(tag) else - settexattribute(a_mathcategory,1000 + delta) + texsetattribute(a_mathcategory,1000 + delta) context(tag) end end @@ -542,6 +629,6 @@ function commands.resetmathattributes() end end for i=1,#list do - settexattribute(list[i],unsetvalue) + texsetattribute(list[i],unsetvalue) end end |