This module implements some methods and creates additional datastructured
from the big character table that we use for all kind of purposes:
We assume that at this point
This converts a string (if given) into a number.
--ldx]]-- local pattern = (P("0x") + P("U+")) * ((R("09","AF")^1 * P(-1)) / function(s) return tonumber(s,16) end) lpeg.patterns.chartonumber = pattern local function chartonumber(k) if type(k) == "string" then local u = lpegmatch(pattern,k) if u then return utfbyte(u) else return utfbyte(k) or 0 end else return k or 0 end end local function charfromnumber(k) if type(k) == "number" then return utfchar(k) or "" else local u = lpegmatch(pattern,k) if u then return utfchar(u) else return k end end end --~ print(chartonumber(97), chartonumber("a"), chartonumber("0x61"), chartonumber("U+61")) characters.tonumber = chartonumber characters.fromnumber = charfromnumber local private = { description = "PRIVATE SLOT", } local ranges = allocate() characters.ranges = ranges setmetatableindex(data, function(t,k) local tk = type(k) if tk == "string" then k = lpegmatch(pattern,k) or utfbyte(k) if k then local v = rawget(t,k) if v then return v else tk = "number" -- fall through to range end else return private end end if tk == "number" and k < 0xF0000 then for r=1,#ranges do local rr = ranges[r] if k >= rr.first and k <= rr.last then local extender = rr.extender if extender then local v = extender(k,v) t[k] = v return v end end end end return private -- handy for when we loop over characters in fonts and check for a property end) local blocks = allocate { ["aegeannumbers"] = { first = 0x10100, last = 0x1013F, description = "Aegean Numbers" }, ["alphabeticpresentationforms"] = { first = 0x0FB00, last = 0x0FB4F, description = "Alphabetic Presentation Forms" }, ["ancientgreekmusicalnotation"] = { first = 0x1D200, last = 0x1D24F, description = "Ancient Greek Musical Notation" }, ["ancientgreeknumbers"] = { first = 0x10140, last = 0x1018F, description = "Ancient Greek Numbers" }, ["ancientsymbols"] = { first = 0x10190, last = 0x101CF, description = "Ancient Symbols" }, ["arabic"] = { first = 0x00600, last = 0x006FF, description = "Arabic" }, ["arabicpresentationformsa"] = { first = 0x0FB50, last = 0x0FDFF, description = "Arabic Presentation Forms-A" }, ["arabicpresentationformsb"] = { first = 0x0FE70, last = 0x0FEFF, description = "Arabic Presentation Forms-B" }, ["arabicsupplement"] = { first = 0x00750, last = 0x0077F, description = "Arabic Supplement" }, ["armenian"] = { first = 0x00530, last = 0x0058F, description = "Armenian" }, ["arrows"] = { first = 0x02190, last = 0x021FF, description = "Arrows" }, ["balinese"] = { first = 0x01B00, last = 0x01B7F, description = "Balinese" }, ["basiclatin"] = { first = 0x00000, last = 0x0007F, description = "Basic Latin" }, ["bengali"] = { first = 0x00980, last = 0x009FF, description = "Bengali" }, ["blockelements"] = { first = 0x02580, last = 0x0259F, description = "Block Elements" }, ["bopomofo"] = { first = 0x03100, last = 0x0312F, description = "Bopomofo" }, ["bopomofoextended"] = { first = 0x031A0, last = 0x031BF, description = "Bopomofo Extended" }, ["boxdrawing"] = { first = 0x02500, last = 0x0257F, description = "Box Drawing" }, ["braillepatterns"] = { first = 0x02800, last = 0x028FF, description = "Braille Patterns" }, ["buginese"] = { first = 0x01A00, last = 0x01A1F, description = "Buginese" }, ["buhid"] = { first = 0x01740, last = 0x0175F, description = "Buhid" }, ["byzantinemusicalsymbols"] = { first = 0x1D000, last = 0x1D0FF, description = "Byzantine Musical Symbols" }, ["carian"] = { first = 0x102A0, last = 0x102DF, description = "Carian" }, ["cham"] = { first = 0x0AA00, last = 0x0AA5F, description = "Cham" }, ["cherokee"] = { first = 0x013A0, last = 0x013FF, description = "Cherokee" }, ["cjkcompatibility"] = { first = 0x03300, last = 0x033FF, description = "CJK Compatibility" }, ["cjkcompatibilityforms"] = { first = 0x0FE30, last = 0x0FE4F, description = "CJK Compatibility Forms" }, ["cjkcompatibilityideographs"] = { first = 0x0F900, last = 0x0FAFF, description = "CJK Compatibility Ideographs" }, ["cjkcompatibilityideographssupplement"] = { first = 0x2F800, last = 0x2FA1F, description = "CJK Compatibility Ideographs Supplement" }, ["cjkradicalssupplement"] = { first = 0x02E80, last = 0x02EFF, description = "CJK Radicals Supplement" }, ["cjkstrokes"] = { first = 0x031C0, last = 0x031EF, description = "CJK Strokes" }, ["cjksymbolsandpunctuation"] = { first = 0x03000, last = 0x0303F, description = "CJK Symbols and Punctuation" }, ["cjkunifiedideographs"] = { first = 0x04E00, last = 0x09FFF, description = "CJK Unified Ideographs" }, ["cjkunifiedideographsextensiona"] = { first = 0x03400, last = 0x04DBF, description = "CJK Unified Ideographs Extension A" }, ["cjkunifiedideographsextensionb"] = { first = 0x20000, last = 0x2A6DF, description = "CJK Unified Ideographs Extension B" }, ["combiningdiacriticalmarks"] = { first = 0x00300, last = 0x0036F, description = "Combining Diacritical Marks" }, ["combiningdiacriticalmarksforsymbols"] = { first = 0x020D0, last = 0x020FF, description = "Combining Diacritical Marks for Symbols" }, ["combiningdiacriticalmarkssupplement"] = { first = 0x01DC0, last = 0x01DFF, description = "Combining Diacritical Marks Supplement" }, ["combininghalfmarks"] = { first = 0x0FE20, last = 0x0FE2F, description = "Combining Half Marks" }, ["controlpictures"] = { first = 0x02400, last = 0x0243F, description = "Control Pictures" }, ["coptic"] = { first = 0x02C80, last = 0x02CFF, description = "Coptic" }, ["countingrodnumerals"] = { first = 0x1D360, last = 0x1D37F, description = "Counting Rod Numerals" }, ["cuneiform"] = { first = 0x12000, last = 0x123FF, description = "Cuneiform" }, ["cuneiformnumbersandpunctuation"] = { first = 0x12400, last = 0x1247F, description = "Cuneiform Numbers and Punctuation" }, ["currencysymbols"] = { first = 0x020A0, last = 0x020CF, description = "Currency Symbols" }, ["cypriotsyllabary"] = { first = 0x10800, last = 0x1083F, description = "Cypriot Syllabary" }, ["cyrillic"] = { first = 0x00400, last = 0x004FF, description = "Cyrillic" }, ["cyrillicextendeda"] = { first = 0x02DE0, last = 0x02DFF, description = "Cyrillic Extended-A" }, ["cyrillicextendedb"] = { first = 0x0A640, last = 0x0A69F, description = "Cyrillic Extended-B" }, ["cyrillicsupplement"] = { first = 0x00500, last = 0x0052F, description = "Cyrillic Supplement" }, ["deseret"] = { first = 0x10400, last = 0x1044F, description = "Deseret" }, ["devanagari"] = { first = 0x00900, last = 0x0097F, description = "Devanagari" }, ["dingbats"] = { first = 0x02700, last = 0x027BF, description = "Dingbats" }, ["dominotiles"] = { first = 0x1F030, last = 0x1F09F, description = "Domino Tiles" }, ["enclosedalphanumerics"] = { first = 0x02460, last = 0x024FF, description = "Enclosed Alphanumerics" }, ["enclosedcjklettersandmonths"] = { first = 0x03200, last = 0x032FF, description = "Enclosed CJK Letters and Months" }, ["ethiopic"] = { first = 0x01200, last = 0x0137F, description = "Ethiopic" }, ["ethiopicextended"] = { first = 0x02D80, last = 0x02DDF, description = "Ethiopic Extended" }, ["ethiopicsupplement"] = { first = 0x01380, last = 0x0139F, description = "Ethiopic Supplement" }, ["generalpunctuation"] = { first = 0x02000, last = 0x0206F, description = "General Punctuation" }, ["geometricshapes"] = { first = 0x025A0, last = 0x025FF, description = "Geometric Shapes" }, ["georgian"] = { first = 0x010A0, last = 0x010FF, description = "Georgian" }, ["georgiansupplement"] = { first = 0x02D00, last = 0x02D2F, description = "Georgian Supplement" }, ["glagolitic"] = { first = 0x02C00, last = 0x02C5F, description = "Glagolitic" }, ["gothic"] = { first = 0x10330, last = 0x1034F, description = "Gothic" }, ["greekandcoptic"] = { first = 0x00370, last = 0x003FF, description = "Greek and Coptic" }, ["greekextended"] = { first = 0x01F00, last = 0x01FFF, description = "Greek Extended" }, ["gujarati"] = { first = 0x00A80, last = 0x00AFF, description = "Gujarati" }, ["gurmukhi"] = { first = 0x00A00, last = 0x00A7F, description = "Gurmukhi" }, ["halfwidthandfullwidthforms"] = { first = 0x0FF00, last = 0x0FFEF, description = "Halfwidth and Fullwidth Forms" }, ["hangulcompatibilityjamo"] = { first = 0x03130, last = 0x0318F, description = "Hangul Compatibility Jamo" }, ["hanguljamo"] = { first = 0x01100, last = 0x011FF, description = "Hangul Jamo" }, ["hangulsyllables"] = { first = 0x0AC00, last = 0x0D7AF, description = "Hangul Syllables" }, ["hanunoo"] = { first = 0x01720, last = 0x0173F, description = "Hanunoo" }, ["hebrew"] = { first = 0x00590, last = 0x005FF, description = "Hebrew" }, ["highprivateusesurrogates"] = { first = 0x0DB80, last = 0x0DBFF, description = "High Private Use Surrogates" }, ["highsurrogates"] = { first = 0x0D800, last = 0x0DB7F, description = "High Surrogates" }, ["hiragana"] = { first = 0x03040, last = 0x0309F, description = "Hiragana" }, ["ideographicdescriptioncharacters"] = { first = 0x02FF0, last = 0x02FFF, description = "Ideographic Description Characters" }, ["ipaextensions"] = { first = 0x00250, last = 0x002AF, description = "IPA Extensions" }, ["kanbun"] = { first = 0x03190, last = 0x0319F, description = "Kanbun" }, ["kangxiradicals"] = { first = 0x02F00, last = 0x02FDF, description = "Kangxi Radicals" }, ["kannada"] = { first = 0x00C80, last = 0x00CFF, description = "Kannada" }, ["katakana"] = { first = 0x030A0, last = 0x030FF, description = "Katakana" }, ["katakanaphoneticextensions"] = { first = 0x031F0, last = 0x031FF, description = "Katakana Phonetic Extensions" }, ["kayahli"] = { first = 0x0A900, last = 0x0A92F, description = "Kayah Li" }, ["kharoshthi"] = { first = 0x10A00, last = 0x10A5F, description = "Kharoshthi" }, ["khmer"] = { first = 0x01780, last = 0x017FF, description = "Khmer" }, ["khmersymbols"] = { first = 0x019E0, last = 0x019FF, description = "Khmer Symbols" }, ["lao"] = { first = 0x00E80, last = 0x00EFF, description = "Lao" }, ["latinextendeda"] = { first = 0x00100, last = 0x0017F, description = "Latin Extended-A" }, ["latinextendedadditional"] = { first = 0x01E00, last = 0x01EFF, description = "Latin Extended Additional" }, ["latinextendedb"] = { first = 0x00180, last = 0x0024F, description = "Latin Extended-B" }, ["latinextendedc"] = { first = 0x02C60, last = 0x02C7F, description = "Latin Extended-C" }, ["latinextendedd"] = { first = 0x0A720, last = 0x0A7FF, description = "Latin Extended-D" }, ["latinsupplement"] = { first = 0x00080, last = 0x000FF, description = "Latin-1 Supplement" }, ["lepcha"] = { first = 0x01C00, last = 0x01C4F, description = "Lepcha" }, ["letterlikesymbols"] = { first = 0x02100, last = 0x0214F, description = "Letterlike Symbols" }, ["limbu"] = { first = 0x01900, last = 0x0194F, description = "Limbu" }, ["linearbideograms"] = { first = 0x10080, last = 0x100FF, description = "Linear B Ideograms" }, ["linearbsyllabary"] = { first = 0x10000, last = 0x1007F, description = "Linear B Syllabary" }, ["lowsurrogates"] = { first = 0x0DC00, last = 0x0DFFF, description = "Low Surrogates" }, ["lycian"] = { first = 0x10280, last = 0x1029F, description = "Lycian" }, ["lydian"] = { first = 0x10920, last = 0x1093F, description = "Lydian" }, ["mahjongtiles"] = { first = 0x1F000, last = 0x1F02F, description = "Mahjong Tiles" }, ["malayalam"] = { first = 0x00D00, last = 0x00D7F, description = "Malayalam" }, ["mathematicalalphanumericsymbols"] = { first = 0x1D400, last = 0x1D7FF, description = "Mathematical Alphanumeric Symbols" }, ["mathematicaloperators"] = { first = 0x02200, last = 0x022FF, description = "Mathematical Operators" }, ["miscellaneousmathematicalsymbolsa"] = { first = 0x027C0, last = 0x027EF, description = "Miscellaneous Mathematical Symbols-A" }, ["miscellaneousmathematicalsymbolsb"] = { first = 0x02980, last = 0x029FF, description = "Miscellaneous Mathematical Symbols-B" }, ["miscellaneoussymbols"] = { first = 0x02600, last = 0x026FF, description = "Miscellaneous Symbols" }, ["miscellaneoussymbolsandarrows"] = { first = 0x02B00, last = 0x02BFF, description = "Miscellaneous Symbols and Arrows" }, ["miscellaneoustechnical"] = { first = 0x02300, last = 0x023FF, description = "Miscellaneous Technical" }, ["modifiertoneletters"] = { first = 0x0A700, last = 0x0A71F, description = "Modifier Tone Letters" }, ["mongolian"] = { first = 0x01800, last = 0x018AF, description = "Mongolian" }, ["musicalsymbols"] = { first = 0x1D100, last = 0x1D1FF, description = "Musical Symbols" }, ["myanmar"] = { first = 0x01000, last = 0x0109F, description = "Myanmar" }, ["newtailue"] = { first = 0x01980, last = 0x019DF, description = "New Tai Lue" }, ["nko"] = { first = 0x007C0, last = 0x007FF, description = "NKo" }, ["numberforms"] = { first = 0x02150, last = 0x0218F, description = "Number Forms" }, ["ogham"] = { first = 0x01680, last = 0x0169F, description = "Ogham" }, ["olchiki"] = { first = 0x01C50, last = 0x01C7F, description = "Ol Chiki" }, ["olditalic"] = { first = 0x10300, last = 0x1032F, description = "Old Italic" }, ["oldpersian"] = { first = 0x103A0, last = 0x103DF, description = "Old Persian" }, ["opticalcharacterrecognition"] = { first = 0x02440, last = 0x0245F, description = "Optical Character Recognition" }, ["oriya"] = { first = 0x00B00, last = 0x00B7F, description = "Oriya" }, ["osmanya"] = { first = 0x10480, last = 0x104AF, description = "Osmanya" }, ["phagspa"] = { first = 0x0A840, last = 0x0A87F, description = "Phags-pa" }, ["phaistosdisc"] = { first = 0x101D0, last = 0x101FF, description = "Phaistos Disc" }, ["phoenician"] = { first = 0x10900, last = 0x1091F, description = "Phoenician" }, ["phoneticextensions"] = { first = 0x01D00, last = 0x01D7F, description = "Phonetic Extensions" }, ["phoneticextensionssupplement"] = { first = 0x01D80, last = 0x01DBF, description = "Phonetic Extensions Supplement" }, ["privateusearea"] = { first = 0x0E000, last = 0x0F8FF, description = "Private Use Area" }, ["rejang"] = { first = 0x0A930, last = 0x0A95F, description = "Rejang" }, ["runic"] = { first = 0x016A0, last = 0x016FF, description = "Runic" }, ["saurashtra"] = { first = 0x0A880, last = 0x0A8DF, description = "Saurashtra" }, ["shavian"] = { first = 0x10450, last = 0x1047F, description = "Shavian" }, ["sinhala"] = { first = 0x00D80, last = 0x00DFF, description = "Sinhala" }, ["smallformvariants"] = { first = 0x0FE50, last = 0x0FE6F, description = "Small Form Variants" }, ["spacingmodifierletters"] = { first = 0x002B0, last = 0x002FF, description = "Spacing Modifier Letters" }, ["specials"] = { first = 0x0FFF0, last = 0x0FFFF, description = "Specials" }, ["sundanese"] = { first = 0x01B80, last = 0x01BBF, description = "Sundanese" }, ["superscriptsandsubscripts"] = { first = 0x02070, last = 0x0209F, description = "Superscripts and Subscripts" }, ["supplementalarrowsa"] = { first = 0x027F0, last = 0x027FF, description = "Supplemental Arrows-A" }, ["supplementalarrowsb"] = { first = 0x02900, last = 0x0297F, description = "Supplemental Arrows-B" }, ["supplementalmathematicaloperators"] = { first = 0x02A00, last = 0x02AFF, description = "Supplemental Mathematical Operators" }, ["supplementalpunctuation"] = { first = 0x02E00, last = 0x02E7F, description = "Supplemental Punctuation" }, ["supplementaryprivateuseareaa"] = { first = 0xF0000, last = 0xFFFFF, description = "Supplementary Private Use Area-A" }, ["supplementaryprivateuseareab"] = { first = 0x100000,last = 0x10FFFF,description = "Supplementary Private Use Area-B" }, ["sylotinagri"] = { first = 0x0A800, last = 0x0A82F, description = "Syloti Nagri" }, ["syriac"] = { first = 0x00700, last = 0x0074F, description = "Syriac" }, ["tagalog"] = { first = 0x01700, last = 0x0171F, description = "Tagalog" }, ["tagbanwa"] = { first = 0x01760, last = 0x0177F, description = "Tagbanwa" }, ["tags"] = { first = 0xE0000, last = 0xE007F, description = "Tags" }, ["taile"] = { first = 0x01950, last = 0x0197F, description = "Tai Le" }, ["taixuanjingsymbols"] = { first = 0x1D300, last = 0x1D35F, description = "Tai Xuan Jing Symbols" }, ["tamil"] = { first = 0x00B80, last = 0x00BFF, description = "Tamil" }, ["telugu"] = { first = 0x00C00, last = 0x00C7F, description = "Telugu" }, ["thaana"] = { first = 0x00780, last = 0x007BF, description = "Thaana" }, ["thai"] = { first = 0x00E00, last = 0x00E7F, description = "Thai" }, ["tibetan"] = { first = 0x00F00, last = 0x00FFF, description = "Tibetan" }, ["tifinagh"] = { first = 0x02D30, last = 0x02D7F, description = "Tifinagh" }, ["ugaritic"] = { first = 0x10380, last = 0x1039F, description = "Ugaritic" }, ["unifiedcanadianaboriginalsyllabics"] = { first = 0x01400, last = 0x0167F, description = "Unified Canadian Aboriginal Syllabics" }, ["vai"] = { first = 0x0A500, last = 0x0A63F, description = "Vai" }, ["variationselectors"] = { first = 0x0FE00, last = 0x0FE0F, description = "Variation Selectors" }, ["variationselectorssupplement"] = { first = 0xE0100, last = 0xE01EF, description = "Variation Selectors Supplement" }, ["verticalforms"] = { first = 0x0FE10, last = 0x0FE1F, description = "Vertical Forms" }, ["yijinghexagramsymbols"] = { first = 0x04DC0, last = 0x04DFF, description = "Yijing Hexagram Symbols" }, ["yiradicals"] = { first = 0x0A490, last = 0x0A4CF, description = "Yi Radicals" }, ["yisyllables"] = { first = 0x0A000, last = 0x0A48F, description = "Yi Syllables" }, } characters.blocks = blocks setmetatableindex(blocks, function(t,k) return k and rawget(t,lower(gsub(k,"[^a-zA-Z]",""))) end) function characters.getrange(name) -- used in font fallback definitions (name or range) local range = blocks[name] if range then return range.first, range.last, range.description end name = gsub(name,'"',"0x") -- goodie: tex hex notation local start, stop = match(name,"^(.-)[%-%:](.-)$") if start and stop then start, stop = tonumber(start,16) or tonumber(start), tonumber(stop,16) or tonumber(stop) if start and stop then return start, stop, nil end end local slot = tonumber(name,16) or tonumber(name) return slot, slot, nil end local categorytags = allocate { lu = "Letter Uppercase", ll = "Letter Lowercase", lt = "Letter Titlecase", lm = "Letter Modifier", lo = "Letter Other", mn = "Mark Nonspacing", mc = "Mark Spacing Combining", me = "Mark Enclosing", nd = "Number Decimal Digit", nl = "Number Letter", no = "Number Other", pc = "Punctuation Connector", pd = "Punctuation Dash", ps = "Punctuation Open", pe = "Punctuation Close", pi = "Punctuation Initial Quote", pf = "Punctuation Final Quote", po = "Punctuation Other", sm = "Symbol Math", sc = "Symbol Currency", sk = "Symbol Modifier", so = "Symbol Other", zs = "Separator Space", zl = "Separator Line", zp = "Separator Paragraph", cc = "Other Control", cf = "Other Format", cs = "Other Surrogate", co = "Other Private Use", cn = "Other Not Assigned", } characters.categorytags = categorytags --~ special : cf (softhyphen) zs (emspace) --~ characters: ll lm lo lt lu mn nl no pc pd pe pf pi po ps sc sk sm so local is_character = allocate ( tohash { "lu","ll","lt","lm","lo", "nd","nl","no", "mn", "nl","no", "pc","pd","ps","pe","pi","pf","po", "sm","sc","sk","so" } ) local is_letter = allocate ( tohash { "ll","lm","lo","lt","lu" } ) local is_command = allocate ( tohash { "cf","zs" } ) local is_spacing = allocate ( tohash { "zs", "zl","zp", } ) local is_mark = allocate ( tohash { "mn", "ms", } ) characters.is_character = is_character characters.is_letter = is_letter characters.is_command = is_command characters.is_spacing = is_spacing characters.is_mark = is_mark local mt = { -- yes or no ? __index = function(t,k) if type(k) == "number" then local c = characters.data[k].category return c and rawget(t,c) else -- avoid auto conversion in data.characters lookups end end } setmetatableindex(characters.is_character, mt) setmetatableindex(characters.is_letter, mt) setmetatableindex(characters.is_command, mt) setmetatableindex(characters.is_spacing, mt) -- linebreak: todo: hash -- -- normative : BK CR LF CM SG GL CB SP ZW NL WJ JL JV JT H2 H3 -- informative : XX OP CL QU NS EX SY IS PR PO NU AL ID IN HY BB BA SA AI B2 new:CP -- east asian width: -- -- N A H W F Na characters.bidi = allocate { l = "Left-to-Right", lre = "Left-to-Right Embedding", lro = "Left-to-Right Override", r = "Right-to-Left", al = "Right-to-Left Arabic", rle = "Right-to-Left Embedding", rlo = "Right-to-Left Override", pdf = "Pop Directional Format", en = "European Number", es = "European Number Separator", et = "European Number Terminator", an = "Arabic Number", cs = "Common Number Separator", nsm = "Non-Spacing Mark", bn = "Boundary Neutral", b = "Paragraph Separator", s = "Segment Separator", ws = "Whitespace", on = "Other Neutrals", } --[[ldx--At this point we assume that the big data table is loaded. From this table we derive a few more.
--ldx]]-- if not characters.fallbacks then -- we could the definition by using a metatable characters.fallbacks = { } characters.directions = { } local fallbacks = characters.fallbacks local directions = characters.directions for k,v in next, data do local specials = v.specials if specials and specials[1] == "compat" and specials[2] == 0x0020 and specials[3] then local s = specials[3] fallbacks[k] = s fallbacks[s] = k end directions[k] = v.direction end end storage.register("characters/fallbacks", characters.fallbacks, "characters.fallbacks") -- accents and such storage.register("characters/directions", characters.directions, "characters.directions") --[[ldx--The
Instead of using a
Setting the lccodes is also done in a loop over the data table.
--ldx]]-- --~ function tex.setsfcode (index,sf) ... end --~ function tex.setlccode (index,lc,[uc]) ... end -- optional third value, safes call --~ function tex.setuccode (index,uc,[lc]) ... end --~ function tex.setcatcode(index,cc) ... end -- we need a function ... --~ tex.lccode --~ tex.uccode --~ tex.sfcode --~ tex.catcode function characters.setcodes() if trace_defining then report_defining("defining lc and uc codes") end for code, chr in next, data do local cc = chr.category if is_letter[cc] then local range = chr.range if range then for i=range.first,range.last do texsetcatcode(i,11) -- letter texsetlccode(i,i,i) -- self self end else 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 texsetcatcode(code,11) -- letter if type(lc) == "table" then lc = code end if type(uc) == "table" then uc = code end texsetlccode(code,lc,uc) if cc == "lu" then texsetsfcode(code,999) end end elseif is_mark[cc] then texsetlccode(code,code,code) -- for hyphenation end end end --[[ldx--Next comes a whole series of helper methods. These are (will be) part
of the official
A couple of convenience methods. Beware, these are slower than directly accessing the data table.
--ldx]]-- -- we could make them virtual: characters.contextnames[n] function characters.contextname(n) return data[n].contextname or "" end function characters.adobename (n) return data[n].adobename or "" end function characters.description(n) return data[n].description or "" end -------- characters.category (n) return data[n].category or "" end function characters.category(n,verbose) local c = data[n].category if not c then return "" elseif verbose then return categorytags[c] else return c end end -- xml support (moved) function characters.remapentity(chr,slot) contextsprint(format("{\\catcode%s=13\\xdef%s{\\string%s}}",slot,utfchar(slot),chr)) end characters.activeoffset = 0x10000 -- there will be remapped in that byte range -- xml.entities = xml.entities or { } -- -- storage.register("xml/entities",xml.entities,"xml.entities") -- this will move to lxml -- -- function characters.setmkiventities() -- local entities = xml.entities -- entities.lt = "<" -- entities.amp = "&" -- entities.gt = ">" -- end -- -- function characters.setmkiientities() -- local entities = xml.entities -- entities.lt = utfchar(characters.activeoffset + utfbyte("<")) -- entities.amp = utfchar(characters.activeoffset + utfbyte("&")) -- entities.gt = utfchar(characters.activeoffset + utfbyte(">")) -- end -- some day we will make a table local function utfstring(s) if type(s) == "table" then return utfchar(unpack(s)) -- concat { utfchar( unpack(s) ) } else return utfchar(s) end end utf.string = utf.string or utfstring local categories = allocate() characters.categories = categories -- lazy table setmetatableindex(categories, function(t,u) if u then local c = data[u] c = c and c.category or u t[u] = c return c end end) local lccodes = allocate() characters.lccodes = lccodes -- lazy table local uccodes = allocate() characters.uccodes = uccodes -- lazy table local shcodes = allocate() characters.shcodes = shcodes -- lazy table local fscodes = allocate() characters.fscodes = fscodes -- lazy table setmetatableindex(lccodes, function(t,u) if u then local c = data[u] c = c and c.lccode or (type(u) == "string" and utfbyte(u)) or u t[u] = c return c end end) setmetatableindex(uccodes, function(t,u) if u then local c = data[u] c = c and c.uccode or (type(u) == "string" and utfbyte(u)) or u t[u] = c return c end end) setmetatableindex(shcodes, function(t,u) if u then local c = data[u] c = c and c.shcode or (type(u) == "string" and utfbyte(u)) or u t[u] = c return c end end) setmetatableindex(fscodes, function(t,u) if u then local c = data[u] c = c and c.fscode or (type(u) == "string" and utfbyte(u)) or u t[u] = c return c end end) local lcchars = allocate() characters.lcchars = lcchars -- lazy table local ucchars = allocate() characters.ucchars = ucchars -- lazy table local shchars = allocate() characters.shchars = shchars -- lazy table local fschars = allocate() characters.fschars = fschars -- lazy table setmetatableindex(lcchars, function(t,u) if u then local c = data[u] c = c and c.lccode c = c and utfstring(c) or (type(u) == "number" and utfchar(u)) or u t[u] = c return c end end) setmetatableindex(ucchars, function(t,u) if u then local c = data[u] c = c and c.uccode c = c and utfstring(c) or (type(u) == "number" and utfchar(u)) or u t[u] = c return c end end) setmetatableindex(shchars, function(t,u) if u then local c = data[u] c = c and c.shcode c = c and utfstring(c) or (type(u) == "number" and utfchar(u)) or u t[u] = c return c end end) setmetatableindex(fschars, function(t,u) if u then local c = data[u] c = c and c.fscode c = c and utfstring(c) or (type(u) == "number" and utfchar(u)) or u t[u] = c return c end end) local decomposed = allocate() characters.decomposed = decomposed -- lazy table local specials = allocate() characters.specials = specials -- lazy table setmetatableindex(decomposed, function(t,u) -- either a table or false if u then local c = data[u] local s = c and c.decomposed or false -- could fall back to specials t[u] = s return s end end) setmetatableindex(specials, function(t,u) -- either a table or false if u then local c = data[u] local s = c and c.specials or false t[u] = s return s end end) local specialchars = allocate() characters.specialchars = specialchars -- lazy table local descriptions = allocate() characters.descriptions = descriptions -- lazy table setmetatableindex(specialchars, function(t,u) if u then local c = data[u] local s = c and c.specials if s then local tt, ttn = { }, 0 for i=2,#s do local si = s[i] local c = data[si] if is_letter[c.category] then ttn = ttn + 1 tt[ttn] = utfchar(si) end end c = concat(tt) t[u] = c return c else if type(u) == "number" then u = utfchar(u) end t[u] = u return u end end end) setmetatableindex(descriptions, function(t,k) -- 0.05 - 0.10 sec for u, c in next, data do local d = c.description if d then d = gsub(d," ","") d = lower(d) t[d] = u end end local d = rawget(t,k) if not d then t[k] = k end return d end) function characters.unicodechar(asked) local n = tonumber(asked) if n then return n elseif type(asked) == "string" then asked = gsub(asked," ","") return descriptions[asked] end end function characters.lower(str) local new, n = { }, 0 for u in utfvalues(str) do n = n + 1 new[n] = lcchars[u] end return concat(new) end function characters.upper(str) local new, n = { }, 0 for u in utfvalues(str) do n = n + 1 new[n] = ucchars[u] end return concat(new) end function characters.shaped(str) local new, n = { }, 0 for u in utfvalues(str) do n = n + 1 new[n] = shchars[u] end return concat(new) end function characters.lettered(str,spacing) local new, n = { }, 0 if spacing then local done = false for u in utfvalues(str) do local c = data[u].category if is_letter[c] then if done and n > 1 then n = n + 1 new[n] = " " done = false end n = n + 1 new[n] = utfchar(u) elseif spacing and is_spacing[c] then done = true end end else for u in utfvalues(str) do if is_letter[data[u].category] then n = n + 1 new[n] = utfchar(u) end end end return concat(new) end --[[ldx--Requesting lower and uppercase codes:
--ldx]]-- function characters.uccode(n) return uccodes[n] end -- obsolete function characters.lccode(n) return lccodes[n] end -- obsolete function characters.flush(n,direct) local c = data[n] if c and c.contextname then c = "\\" .. c.contextname else c = utfchar(n) end if direct then return c else contextsprint(c) end end function characters.shape(n) local shcode = shcodes[n] if not shcode then return n, nil elseif type(shcode) == "table" then return shcode[1], shcode[#shcode] else return shcode, nil end end -- -- some day we might go this route, but it does not really save that much -- -- so not now (we can generate a lot using mtx-unicode that operates on the -- -- database) -- -- -- category cjkwd direction linebreak -- -- -- adobename comment contextcommand contextname description fallback lccode -- -- mathclass mathfiller mathname mathspec mathstretch mathsymbol mirror -- -- range shcode specials uccode uccodes unicodeslot -- -- local data = { -- ['one']={ -- common = { -- category="cc", -- direction="bn", -- linebreak="cm", -- }, -- vector = { -- [0x0000] = { -- description="NULL", -- group='one', -- unicodeslot=0x0000, -- }, -- { -- description="START OF HEADING", -- group='one', -- unicodeslot=0x0001, -- }, -- } -- } -- } -- -- local chardata, groupdata = { }, { } -- -- for group, gdata in next, data do -- local common, vector = { __index = gdata.common }, gdata.vector -- for character, cdata in next, vector do -- chardata[character] = cdata -- setmetatable(cdata,common) -- end -- groupdata[group] = gdata -- end --~ characters.data, characters.groups = chardata, groupdata --~ [0xF0000]={ --~ category="co", --~ cjkwd="a", --~ description="