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|
if not modules then modules = { } end modules ['char-ini'] = {
version = 1.001,
comment = "companion to char-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
-- todo: make two files, one for format generation, one for format use
-- we can remove the tag range starting at 0xE0000 (special applications)
local tex = tex
local utfchar, utfbyte, utfvalues = utf.char, utf.byte, string.utfvalues
local ustring, utf = unicode.ustring, unicode.utf8
local concat, unpack, tohash = table.concat, table.unpack, table.tohash
local next, tonumber, type, rawget, rawset = next, tonumber, type, rawget, rawset
local format, lower, gsub, match, gmatch = string.format, string.lower, string.gsub, string.match, string.match, string.gmatch
local P, R, lpegmatch = lpeg.P, lpeg.R, lpeg.match
local allocate = utilities.storage.allocate
local mark = utilities.storage.mark
local texsetlccode = tex.setlccode
local texsetuccode = tex.setuccode
local texsetsfcode = tex.setsfcode
local texsetcatcode = tex.setcatcode
local contextsprint = context.sprint
local ctxcatcodes = catcodes.numbers.ctxcatcodes
local texcatcodes = catcodes.numbers.texcatcodes
local setmetatableindex = table.setmetatableindex
local trace_defining = false trackers.register("characters.defining", function(v) characters_defining = v end)
local report_defining = logs.reporter("characters")
--[[ldx--
<p>This module implements some methods and creates additional datastructured
from the big character table that we use for all kind of purposes:
<type>char-def.lua</type>.</p>
<p>We assume that at this point <type>characters.data</type> is already
loaded!</p>
--ldx]]--
characters = characters or { }
local characters = characters
local data = characters.data
if data then
mark(data) -- why does this fail
else
report_defining("fatal error: 'char-def.lua' is not loaded")
os.exit()
end
--[[ldx--
<p>This converts a string (if given) into a number.</p>
--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--
<p>At this point we assume that the big data table is loaded. From this
table we derive a few more.</p>
--ldx]]--
if not characters.fallbacks then
characters.fallbacks = { } -- not than many
local fallbacks = characters.fallbacks
for k, d in next, data do
local specials = d.specials
if specials and specials[1] == "compat" and specials[2] == 0x0020 then
local s = specials[3]
if s then
fallbacks[k] = s
fallbacks[s] = k
end
end
end
end
storage.register("characters/fallbacks", characters.fallbacks, "characters.fallbacks") -- accents and such
characters.directions = { }
setmetatableindex(characters.directions,function(t,k)
local d = data[k]
if d then
local v = d.direction
if v then
t[k] = v
return v
end
end
t[k] = false -- maybe 'l'
return v
end)
--[[ldx--
<p>The <type>context</type> namespace is used to store methods and data
which is rather specific to <l n='context'/>.</p>
--ldx]]--
--[[ldx--
<p>Instead of using a <l n='tex'/> file to define the named glyphs, we
use the table. After all, we have this information available anyway.</p>
--ldx]]--
function characters.makeactive(n,name) --
contextsprint(ctxcatcodes,format("\\catcode%s=13\\unexpanded\\def %s{\\%s}",n,utfchar(n),name))
-- context("\\catcode%s=13\\unexpanded\\def %s{\\%s}",n,utfchar(n),name)
end
function tex.uprint(c,n)
if n then
-- contextsprint(c,charfromnumber(n))
contextsprint(c,utfchar(n))
else
-- contextsprint(charfromnumber(c))
contextsprint(utfchar(c))
end
end
local forbidden = tohash { -- at least now
0x00A0,
0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x200B, 0x200C, 0x200D,
0x202F,
0x205F,
-- 0xFEFF,
}
function characters.define(tobelettered, tobeactivated) -- catcodetables
if trace_defining then
report_defining("defining active character commands")
end
local activated, a = { }, 0
for u, chr in next, data do -- these will be commands
local fallback = chr.fallback
if fallback then
contextsprint("{\\catcode",u,"=13\\unexpanded\\gdef ",utfchar(u),"{\\checkedchar{",u,"}{",fallback,"}}}")
a = a + 1
activated[a] = u
else
local contextname = chr.contextname
if contextname then
local category = chr.category
if is_character[category] then
if chr.unicodeslot < 128 then
if is_letter[category] then
contextsprint(ctxcatcodes,format("\\def\\%s{%s}",contextname,utfchar(u))) -- has no s
else
contextsprint(ctxcatcodes,format("\\chardef\\%s=%s",contextname,u)) -- has no s
end
else
contextsprint(ctxcatcodes,format("\\def\\%s{%s}",contextname,utfchar(u))) -- has no s
end
elseif is_command[category] and not forbidden[u] then
contextsprint("{\\catcode",u,"=13\\unexpanded\\gdef ",utfchar(u),"{\\"..contextname,"}}")
a = a + 1
activated[a] = u
end
end
end
end
if tobelettered then -- shared
local saved = tex.catcodetable
for i=1,#tobelettered do
tex.catcodetable = tobelettered[i]
if trace_defining then
report_defining("defining letters (global, shared)")
end
for u, chr in next, data do
if not chr.fallback and is_letter[chr.category] and u >= 128 and u <= 65536 then
texsetcatcode(u,11)
end
local range = chr.range
if range then
for i=1,range.first,range.last do
texsetcatcode(i,11)
end
end
end
texsetcatcode(0x200C,11) -- non-joiner
texsetcatcode(0x200D,11) -- joiner
end
tex.catcodetable = saved
end
local nofactivated = #tobeactivated
if tobeactivated and nofactivated > 0 then
for i=1,nofactivated do
local u = activated[i]
if u then
report_defining("character 0x%05X is active in sets %s (%s)",u,concat(tobeactivated,","),data[u].description)
end
end
local saved = tex.catcodetable
for i=1,#tobeactivated do
local vector = tobeactivated[i]
if trace_defining then
report_defining("defining %s active characters in vector %s",nofactivated,vector)
end
tex.catcodetable = vector
for i=1,nofactivated do
local u = activated[i]
if u then
texsetcatcode(u,13)
end
end
end
tex.catcodetable = saved
end
end
--[[ldx--
<p>Setting the lccodes is also done in a loop over the data table.</p>
--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
elseif type(lc) == "table" then
lc = code
end
if not uc then
chr.uccode, uc = code, code
elseif type(uc) == "table" then
uc = code
end
texsetcatcode(code,11) -- letter
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--
<p>Next comes a whole series of helper methods. These are (will be) part
of the official <l n='api'/>.</p>
--ldx]]--
--[[ldx--
<p>A couple of convenience methods. Beware, these are slower than directly
accessing the data table.</p>
--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
return descriptions[asked] or descriptions[gsub(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--
<p>Requesting lower and uppercase codes:</p>
--ldx]]--
function characters.uccode(n) return uccodes[n] end -- obsolete
function characters.lccode(n) return lccodes[n] end -- obsolete
function characters.safechar(n)
local c = data[n]
if c and c.contextname then
return "\\" .. c.contextname
else
return utfchar(n)
end
end
function commands.safechar(n)
local c = data[n]
if c and c.contextname then
contextsprint("\\" .. c.contextname) -- context[c.contextname]()
else
contextsprint(utfchar(n))
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="<Plane 0x000F Private Use, First>",
--~ direction="l",
--~ unicodeslot=0xF0000,
--~ },
--~ [0xFFFFD]={
--~ category="co",
--~ cjkwd="a",
--~ description="<Plane 0x000F Private Use, Last>",
--~ direction="l",
--~ unicodeslot=0xFFFFD,
--~ },
--~ [0x100000]={
--~ category="co",
--~ cjkwd="a",
--~ description="<Plane 0x0010 Private Use, First>",
--~ direction="l",
--~ unicodeslot=0x100000,
--~ },
--~ [0x10FFFD]={
--~ category="co",
--~ cjkwd="a",
--~ description="<Plane 0x0010 Private Use, Last>",
--~ direction="l",
--~ unicodeslot=0x10FFFD,
--~ },
if not characters.superscripts then
local superscripts = allocate() characters.superscripts = superscripts
local subscripts = allocate() characters.subscripts = subscripts
-- skipping U+02120 (service mark) U+02122 (trademark)
for k, v in next, data do
local specials = v.specials
if specials then
local what = specials[1]
if what == "super" then
if #specials == 2 then
superscripts[k] = specials[2]
else
report_defining("ignoring superscript %s %s: %s",ustring(k),utfchar(k),v.description)
end
elseif what == "sub" then
if #specials == 2 then
subscripts[k] = specials[2]
else
report_defining("ignoring subscript %s %s: %s",ustring(k),utfchar(k),v.description)
end
end
end
end
-- print(table.serialize(superscripts, "superscripts", { hexify = true }))
-- print(table.serialize(subscripts, "subscripts", { hexify = true }))
storage.register("characters/superscripts", superscripts, "characters.superscripts")
storage.register("characters/subscripts", subscripts, "characters.subscripts")
end
-- interface
commands.utfchar = tex.uprint
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