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authorHans Hagen <pragma@wxs.nl>2012-12-24 20:08:00 +0100
committerHans Hagen <pragma@wxs.nl>2012-12-24 20:08:00 +0100
commit5f48570bba149ac17f45c80d5ee95306aa69d0c9 (patch)
treebfd405cdf69acd82e4352f142f3b0220abde6ed5 /tex/generic
parentd2d2f5a76a2323d1adafe3dc1926e95064b206d9 (diff)
downloadcontext-5f48570bba149ac17f45c80d5ee95306aa69d0c9.tar.gz
beta 2012.12.24 20:08
Diffstat (limited to 'tex/generic')
-rw-r--r--tex/generic/context/luatex/luatex-fonts-merged.lua2260
-rw-r--r--tex/generic/context/luatex/luatex-fonts.lua4
2 files changed, 1141 insertions, 1123 deletions
diff --git a/tex/generic/context/luatex/luatex-fonts-merged.lua b/tex/generic/context/luatex/luatex-fonts-merged.lua
index 1f402cd4f..2b1f94b14 100644
--- a/tex/generic/context/luatex/luatex-fonts-merged.lua
+++ b/tex/generic/context/luatex/luatex-fonts-merged.lua
@@ -1,6 +1,789 @@
-- merged file : luatex-fonts-merged.lua
-- parent file : luatex-fonts.lua
--- merge date : 12/10/12 23:20:34
+-- merge date : 12/24/12 20:08:31
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules = { } end modules ['l-lpeg'] = {
+ version = 1.001,
+ comment = "companion to luat-lib.mkiv",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+-- a new lpeg fails on a #(1-P(":")) test and really needs a + P(-1)
+
+-- move utf -> l-unicode
+-- move string -> l-string or keep it here
+
+local lpeg = require("lpeg")
+
+-- tracing (only used when we encounter a problem in integration of lpeg in luatex)
+
+-- some code will move to unicode and string
+
+local report = texio and texio.write_nl or print
+
+-- local lpmatch = lpeg.match
+-- local lpprint = lpeg.print
+-- local lpp = lpeg.P
+-- local lpr = lpeg.R
+-- local lps = lpeg.S
+-- local lpc = lpeg.C
+-- local lpb = lpeg.B
+-- local lpv = lpeg.V
+-- local lpcf = lpeg.Cf
+-- local lpcb = lpeg.Cb
+-- local lpcg = lpeg.Cg
+-- local lpct = lpeg.Ct
+-- local lpcs = lpeg.Cs
+-- local lpcc = lpeg.Cc
+-- local lpcmt = lpeg.Cmt
+-- local lpcarg = lpeg.Carg
+
+-- function lpeg.match(l,...) report("LPEG MATCH") lpprint(l) return lpmatch(l,...) end
+
+-- function lpeg.P (l) local p = lpp (l) report("LPEG P =") lpprint(l) return p end
+-- function lpeg.R (l) local p = lpr (l) report("LPEG R =") lpprint(l) return p end
+-- function lpeg.S (l) local p = lps (l) report("LPEG S =") lpprint(l) return p end
+-- function lpeg.C (l) local p = lpc (l) report("LPEG C =") lpprint(l) return p end
+-- function lpeg.B (l) local p = lpb (l) report("LPEG B =") lpprint(l) return p end
+-- function lpeg.V (l) local p = lpv (l) report("LPEG V =") lpprint(l) return p end
+-- function lpeg.Cf (l) local p = lpcf (l) report("LPEG Cf =") lpprint(l) return p end
+-- function lpeg.Cb (l) local p = lpcb (l) report("LPEG Cb =") lpprint(l) return p end
+-- function lpeg.Cg (l) local p = lpcg (l) report("LPEG Cg =") lpprint(l) return p end
+-- function lpeg.Ct (l) local p = lpct (l) report("LPEG Ct =") lpprint(l) return p end
+-- function lpeg.Cs (l) local p = lpcs (l) report("LPEG Cs =") lpprint(l) return p end
+-- function lpeg.Cc (l) local p = lpcc (l) report("LPEG Cc =") lpprint(l) return p end
+-- function lpeg.Cmt (l) local p = lpcmt (l) report("LPEG Cmt =") lpprint(l) return p end
+-- function lpeg.Carg (l) local p = lpcarg(l) report("LPEG Carg =") lpprint(l) return p end
+
+local type, next = type, next
+local byte, char, gmatch, format = string.byte, string.char, string.gmatch, string.format
+
+-- Beware, we predefine a bunch of patterns here and one reason for doing so
+-- is that we get consistent behaviour in some of the visualizers.
+
+lpeg.patterns = lpeg.patterns or { } -- so that we can share
+local patterns = lpeg.patterns
+
+local P, R, S, V, Ct, C, Cs, Cc, Cp, Cmt = lpeg.P, lpeg.R, lpeg.S, lpeg.V, lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc, lpeg.Cp, lpeg.Cmt
+local lpegtype, lpegmatch = lpeg.type, lpeg.match
+
+local anything = P(1)
+local endofstring = P(-1)
+local alwaysmatched = P(true)
+
+patterns.anything = anything
+patterns.endofstring = endofstring
+patterns.beginofstring = alwaysmatched
+patterns.alwaysmatched = alwaysmatched
+
+local digit, sign = R('09'), S('+-')
+local cr, lf, crlf = P("\r"), P("\n"), P("\r\n")
+local newline = crlf + S("\r\n") -- cr + lf
+local escaped = P("\\") * anything
+local squote = P("'")
+local dquote = P('"')
+local space = P(" ")
+
+local utfbom_32_be = P('\000\000\254\255')
+local utfbom_32_le = P('\255\254\000\000')
+local utfbom_16_be = P('\255\254')
+local utfbom_16_le = P('\254\255')
+local utfbom_8 = P('\239\187\191')
+local utfbom = utfbom_32_be + utfbom_32_le
+ + utfbom_16_be + utfbom_16_le
+ + utfbom_8
+local utftype = utfbom_32_be * Cc("utf-32-be") + utfbom_32_le * Cc("utf-32-le")
+ + utfbom_16_be * Cc("utf-16-be") + utfbom_16_le * Cc("utf-16-le")
+ + utfbom_8 * Cc("utf-8") + alwaysmatched * Cc("utf-8") -- assume utf8
+local utfoffset = utfbom_32_be * Cc(4) + utfbom_32_le * Cc(4)
+ + utfbom_16_be * Cc(2) + utfbom_16_le * Cc(2)
+ + utfbom_8 * Cc(3) + Cc(0)
+
+local utf8next = R("\128\191")
+
+patterns.utf8one = R("\000\127")
+patterns.utf8two = R("\194\223") * utf8next
+patterns.utf8three = R("\224\239") * utf8next * utf8next
+patterns.utf8four = R("\240\244") * utf8next * utf8next * utf8next
+patterns.utfbom = utfbom
+patterns.utftype = utftype
+patterns.utfoffset = utfoffset
+
+local utf8char = patterns.utf8one + patterns.utf8two + patterns.utf8three + patterns.utf8four
+local validutf8char = utf8char^0 * endofstring * Cc(true) + Cc(false)
+
+patterns.utf8 = utf8char
+patterns.utf8char = utf8char
+patterns.validutf8 = validutf8char
+patterns.validutf8char = validutf8char
+
+local eol = S("\n\r")
+local spacer = S(" \t\f\v") -- + char(0xc2, 0xa0) if we want utf (cf mail roberto)
+local whitespace = eol + spacer
+local nonspacer = 1 - spacer
+local nonwhitespace = 1 - whitespace
+
+patterns.eol = eol
+patterns.spacer = spacer
+patterns.whitespace = whitespace
+patterns.nonspacer = nonspacer
+patterns.nonwhitespace = nonwhitespace
+
+local stripper = spacer^0 * C((spacer^0 * nonspacer^1)^0) -- from example by roberto
+
+----- collapser = Cs(spacer^0/"" * ((spacer^1 * P(-1) / "") + (spacer^1/" ") + P(1))^0)
+local collapser = Cs(spacer^0/"" * nonspacer^0 * ((spacer^0/" " * nonspacer^1)^0))
+
+patterns.stripper = stripper
+patterns.collapser = collapser
+
+patterns.digit = digit
+patterns.sign = sign
+patterns.cardinal = sign^0 * digit^1
+patterns.integer = sign^0 * digit^1
+patterns.unsigned = digit^0 * P('.') * digit^1
+patterns.float = sign^0 * patterns.unsigned
+patterns.cunsigned = digit^0 * P(',') * digit^1
+patterns.cfloat = sign^0 * patterns.cunsigned
+patterns.number = patterns.float + patterns.integer
+patterns.cnumber = patterns.cfloat + patterns.integer
+patterns.oct = P("0") * R("07")^1
+patterns.octal = patterns.oct
+patterns.HEX = P("0x") * R("09","AF")^1
+patterns.hex = P("0x") * R("09","af")^1
+patterns.hexadecimal = P("0x") * R("09","AF","af")^1
+patterns.lowercase = R("az")
+patterns.uppercase = R("AZ")
+patterns.letter = patterns.lowercase + patterns.uppercase
+patterns.space = space
+patterns.tab = P("\t")
+patterns.spaceortab = patterns.space + patterns.tab
+patterns.newline = newline
+patterns.emptyline = newline^1
+patterns.equal = P("=")
+patterns.comma = P(",")
+patterns.commaspacer = P(",") * spacer^0
+patterns.period = P(".")
+patterns.colon = P(":")
+patterns.semicolon = P(";")
+patterns.underscore = P("_")
+patterns.escaped = escaped
+patterns.squote = squote
+patterns.dquote = dquote
+patterns.nosquote = (escaped + (1-squote))^0
+patterns.nodquote = (escaped + (1-dquote))^0
+patterns.unsingle = (squote/"") * patterns.nosquote * (squote/"") -- will change to C in the middle
+patterns.undouble = (dquote/"") * patterns.nodquote * (dquote/"") -- will change to C in the middle
+patterns.unquoted = patterns.undouble + patterns.unsingle -- more often undouble
+patterns.unspacer = ((patterns.spacer^1)/"")^0
+
+patterns.singlequoted = squote * patterns.nosquote * squote
+patterns.doublequoted = dquote * patterns.nodquote * dquote
+patterns.quoted = patterns.doublequoted + patterns.singlequoted
+
+patterns.propername = R("AZ","az","__") * R("09","AZ","az", "__")^0 * P(-1)
+
+patterns.somecontent = (anything - newline - space)^1 -- (utf8char - newline - space)^1
+patterns.beginline = #(1-newline)
+
+local function anywhere(pattern) --slightly adapted from website
+ return P { P(pattern) + 1 * V(1) }
+end
+
+lpeg.anywhere = anywhere
+
+function lpeg.instringchecker(p)
+ p = anywhere(p)
+ return function(str)
+ return lpegmatch(p,str) and true or false
+ end
+end
+
+function lpeg.splitter(pattern, action)
+ return (((1-P(pattern))^1)/action+1)^0
+end
+
+function lpeg.tsplitter(pattern, action)
+ return Ct((((1-P(pattern))^1)/action+1)^0)
+end
+
+-- probleem: separator can be lpeg and that does not hash too well, but
+-- it's quite okay as the key is then not garbage collected
+
+local splitters_s, splitters_m, splitters_t = { }, { }, { }
+
+local function splitat(separator,single)
+ local splitter = (single and splitters_s[separator]) or splitters_m[separator]
+ if not splitter then
+ separator = P(separator)
+ local other = C((1 - separator)^0)
+ if single then
+ local any = anything
+ splitter = other * (separator * C(any^0) + "") -- ?
+ splitters_s[separator] = splitter
+ else
+ splitter = other * (separator * other)^0
+ splitters_m[separator] = splitter
+ end
+ end
+ return splitter
+end
+
+local function tsplitat(separator)
+ local splitter = splitters_t[separator]
+ if not splitter then
+ splitter = Ct(splitat(separator))
+ splitters_t[separator] = splitter
+ end
+ return splitter
+end
+
+lpeg.splitat = splitat
+lpeg.tsplitat = tsplitat
+
+function string.splitup(str,separator)
+ if not separator then
+ separator = ","
+ end
+ return lpegmatch(splitters_m[separator] or splitat(separator),str)
+end
+
+-- local p = splitat("->",false) print(lpegmatch(p,"oeps->what->more")) -- oeps what more
+-- local p = splitat("->",true) print(lpegmatch(p,"oeps->what->more")) -- oeps what->more
+-- local p = splitat("->",false) print(lpegmatch(p,"oeps")) -- oeps
+-- local p = splitat("->",true) print(lpegmatch(p,"oeps")) -- oeps
+
+local cache = { }
+
+function lpeg.split(separator,str)
+ local c = cache[separator]
+ if not c then
+ c = tsplitat(separator)
+ cache[separator] = c
+ end
+ return lpegmatch(c,str)
+end
+
+function string.split(str,separator)
+ if separator then
+ local c = cache[separator]
+ if not c then
+ c = tsplitat(separator)
+ cache[separator] = c
+ end
+ return lpegmatch(c,str)
+ else
+ return { str }
+ end
+end
+
+local spacing = patterns.spacer^0 * newline -- sort of strip
+local empty = spacing * Cc("")
+local nonempty = Cs((1-spacing)^1) * spacing^-1
+local content = (empty + nonempty)^1
+
+patterns.textline = content
+
+local linesplitter = tsplitat(newline)
+
+patterns.linesplitter = linesplitter
+
+function string.splitlines(str)
+ return lpegmatch(linesplitter,str)
+end
+
+-- lpeg.splitters = cache -- no longer public
+
+local cache = { }
+
+function lpeg.checkedsplit(separator,str)
+ local c = cache[separator]
+ if not c then
+ separator = P(separator)
+ local other = C((1 - separator)^1)
+ c = Ct(separator^0 * other * (separator^1 * other)^0)
+ cache[separator] = c
+ end
+ return lpegmatch(c,str)
+end
+
+function string.checkedsplit(str,separator)
+ local c = cache[separator]
+ if not c then
+ separator = P(separator)
+ local other = C((1 - separator)^1)
+ c = Ct(separator^0 * other * (separator^1 * other)^0)
+ cache[separator] = c
+ end
+ return lpegmatch(c,str)
+end
+
+-- from roberto's site:
+
+local function f2(s) local c1, c2 = byte(s,1,2) return c1 * 64 + c2 - 12416 end
+local function f3(s) local c1, c2, c3 = byte(s,1,3) return (c1 * 64 + c2) * 64 + c3 - 925824 end
+local function f4(s) local c1, c2, c3, c4 = byte(s,1,4) return ((c1 * 64 + c2) * 64 + c3) * 64 + c4 - 63447168 end
+
+local utf8byte = patterns.utf8one/byte + patterns.utf8two/f2 + patterns.utf8three/f3 + patterns.utf8four/f4
+
+patterns.utf8byte = utf8byte
+
+--~ local str = " a b c d "
+
+--~ local s = lpeg.stripper(lpeg.R("az")) print("["..lpegmatch(s,str).."]")
+--~ local s = lpeg.keeper(lpeg.R("az")) print("["..lpegmatch(s,str).."]")
+--~ local s = lpeg.stripper("ab") print("["..lpegmatch(s,str).."]")
+--~ local s = lpeg.keeper("ab") print("["..lpegmatch(s,str).."]")
+
+local cache = { }
+
+function lpeg.stripper(str)
+ if type(str) == "string" then
+ local s = cache[str]
+ if not s then
+ s = Cs(((S(str)^1)/"" + 1)^0)
+ cache[str] = s
+ end
+ return s
+ else
+ return Cs(((str^1)/"" + 1)^0)
+ end
+end
+
+local cache = { }
+
+function lpeg.keeper(str)
+ if type(str) == "string" then
+ local s = cache[str]
+ if not s then
+ s = Cs((((1-S(str))^1)/"" + 1)^0)
+ cache[str] = s
+ end
+ return s
+ else
+ return Cs((((1-str)^1)/"" + 1)^0)
+ end
+end
+
+function lpeg.frontstripper(str) -- or pattern (yet undocumented)
+ return (P(str) + P(true)) * Cs(anything^0)
+end
+
+function lpeg.endstripper(str) -- or pattern (yet undocumented)
+ return Cs((1 - P(str) * endofstring)^0)
+end
+
+-- Just for fun I looked at the used bytecode and
+-- p = (p and p + pp) or pp gets one more (testset).
+
+-- todo: cache when string
+
+function lpeg.replacer(one,two,makefunction,isutf) -- in principle we should sort the keys
+ local pattern
+ local u = isutf and utf8char or 1
+ if type(one) == "table" then
+ local no = #one
+ local p = P(false)
+ if no == 0 then
+ for k, v in next, one do
+ p = p + P(k) / v
+ end
+ pattern = Cs((p + u)^0)
+ elseif no == 1 then
+ local o = one[1]
+ one, two = P(o[1]), o[2]
+ -- pattern = Cs(((1-one)^1 + one/two)^0)
+ pattern = Cs((one/two + u)^0)
+ else
+ for i=1,no do
+ local o = one[i]
+ p = p + P(o[1]) / o[2]
+ end
+ pattern = Cs((p + u)^0)
+ end
+ else
+ pattern = Cs((P(one)/(two or "") + u)^0)
+ end
+ if makefunction then
+ return function(str)
+ return lpegmatch(pattern,str)
+ end
+ else
+ return pattern
+ end
+end
+
+function lpeg.finder(lst,makefunction)
+ local pattern
+ if type(lst) == "table" then
+ pattern = P(false)
+ if #lst == 0 then
+ for k, v in next, lst do
+ pattern = pattern + P(k) -- ignore key, so we can use a replacer table
+ end
+ else
+ for i=1,#lst do
+ pattern = pattern + P(lst[i])
+ end
+ end
+ else
+ pattern = P(lst)
+ end
+ pattern = (1-pattern)^0 * pattern
+ if makefunction then
+ return function(str)
+ return lpegmatch(pattern,str)
+ end
+ else
+ return pattern
+ end
+end
+
+-- print(lpeg.match(lpeg.replacer("e","a"),"test test"))
+-- print(lpeg.match(lpeg.replacer{{"e","a"}},"test test"))
+-- print(lpeg.match(lpeg.replacer({ e = "a", t = "x" }),"test test"))
+
+local splitters_f, splitters_s = { }, { }
+
+function lpeg.firstofsplit(separator) -- always return value
+ local splitter = splitters_f[separator]
+ if not splitter then
+ separator = P(separator)
+ splitter = C((1 - separator)^0)
+ splitters_f[separator] = splitter
+ end
+ return splitter
+end
+
+function lpeg.secondofsplit(separator) -- nil if not split
+ local splitter = splitters_s[separator]
+ if not splitter then
+ separator = P(separator)
+ splitter = (1 - separator)^0 * separator * C(anything^0)
+ splitters_s[separator] = splitter
+ end
+ return splitter
+end
+
+function lpeg.balancer(left,right)
+ left, right = P(left), P(right)
+ return P { left * ((1 - left - right) + V(1))^0 * right }
+end
+
+-- print(1,lpegmatch(lpeg.firstofsplit(":"),"bc:de"))
+-- print(2,lpegmatch(lpeg.firstofsplit(":"),":de")) -- empty
+-- print(3,lpegmatch(lpeg.firstofsplit(":"),"bc"))
+-- print(4,lpegmatch(lpeg.secondofsplit(":"),"bc:de"))
+-- print(5,lpegmatch(lpeg.secondofsplit(":"),"bc:")) -- empty
+-- print(6,lpegmatch(lpeg.secondofsplit(":",""),"bc"))
+-- print(7,lpegmatch(lpeg.secondofsplit(":"),"bc"))
+-- print(9,lpegmatch(lpeg.secondofsplit(":","123"),"bc"))
+
+-- -- slower:
+--
+-- function lpeg.counter(pattern)
+-- local n, pattern = 0, (lpeg.P(pattern)/function() n = n + 1 end + lpeg.anything)^0
+-- return function(str) n = 0 ; lpegmatch(pattern,str) ; return n end
+-- end
+
+local nany = utf8char/""
+
+function lpeg.counter(pattern)
+ pattern = Cs((P(pattern)/" " + nany)^0)
+ return function(str)
+ return #lpegmatch(pattern,str)
+ end
+end
+
+-- utf extensies
+
+local utfcharacters = utf and utf.characters or string.utfcharacters
+local utfgmatch = unicode and unicode.utf8.gmatch
+local utfchar = utf and utf.char or (unicode and unicode.utf8 and unicode.utf8.char)
+
+lpeg.UP = lpeg.P
+
+if utfcharacters then
+
+ function lpeg.US(str)
+ local p = P(false)
+ for uc in utfcharacters(str) do
+ p = p + P(uc)
+ end
+ return p
+ end
+
+
+elseif utfgmatch then
+
+ function lpeg.US(str)
+ local p = P(false)
+ for uc in utfgmatch(str,".") do
+ p = p + P(uc)
+ end
+ return p
+ end
+
+else
+
+ function lpeg.US(str)
+ local p = P(false)
+ local f = function(uc)
+ p = p + P(uc)
+ end
+ lpegmatch((utf8char/f)^0,str)
+ return p
+ end
+
+end
+
+local range = utf8byte * utf8byte + Cc(false) -- utf8byte is already a capture
+
+function lpeg.UR(str,more)
+ local first, last
+ if type(str) == "number" then
+ first = str
+ last = more or first
+ else
+ first, last = lpegmatch(range,str)
+ if not last then
+ return P(str)
+ end
+ end
+ if first == last then
+ return P(str)
+ elseif utfchar and (last - first < 8) then -- a somewhat arbitrary criterium
+ local p = P(false)
+ for i=first,last do
+ p = p + P(utfchar(i))
+ end
+ return p -- nil when invalid range
+ else
+ local f = function(b)
+ return b >= first and b <= last
+ end
+ -- tricky, these nested captures
+ return utf8byte / f -- nil when invalid range
+ end
+end
+
+-- print(lpeg.match(lpeg.Cs((C(lpeg.UR("αω"))/{ ["χ"] = "OEPS" })^0),"αωχαω"))
+
+-- lpeg.print(lpeg.R("ab","cd","gh"))
+-- lpeg.print(lpeg.P("a","b","c"))
+-- lpeg.print(lpeg.S("a","b","c"))
+
+-- print(lpeg.count("äáàa",lpeg.P("á") + lpeg.P("à")))
+-- print(lpeg.count("äáàa",lpeg.UP("áà")))
+-- print(lpeg.count("äáàa",lpeg.US("àá")))
+-- print(lpeg.count("äáàa",lpeg.UR("aá")))
+-- print(lpeg.count("äáàa",lpeg.UR("àá")))
+-- print(lpeg.count("äáàa",lpeg.UR(0x0000,0xFFFF)))
+
+function lpeg.is_lpeg(p)
+ return p and lpegtype(p) == "pattern"
+end
+
+function lpeg.oneof(list,...) -- lpeg.oneof("elseif","else","if","then") -- assume proper order
+ if type(list) ~= "table" then
+ list = { list, ... }
+ end
+ -- table.sort(list) -- longest match first
+ local p = P(list[1])
+ for l=2,#list do
+ p = p + P(list[l])
+ end
+ return p
+end
+
+-- For the moment here, but it might move to utilities. Beware, we need to
+-- have the longest keyword first, so 'aaa' comes beforte 'aa' which is why we
+-- loop back from the end cq. prepend.
+
+local sort = table.sort
+
+local function copyindexed(old)
+ local new = { }
+ for i=1,#old do
+ new[i] = old
+ end
+ return new
+end
+
+local function sortedkeys(tab)
+ local keys, s = { }, 0
+ for key,_ in next, tab do
+ s = s + 1
+ keys[s] = key
+ end
+ sort(keys)
+ return keys
+end
+
+function lpeg.append(list,pp,delayed,checked)
+ local p = pp
+ if #list > 0 then
+ local keys = copyindexed(list)
+ sort(keys)
+ for i=#keys,1,-1 do
+ local k = keys[i]
+ if p then
+ p = P(k) + p
+ else
+ p = P(k)
+ end
+ end
+ elseif delayed then -- hm, it looks like the lpeg parser resolves anyway
+ local keys = sortedkeys(list)
+ if p then
+ for i=1,#keys,1 do
+ local k = keys[i]
+ local v = list[k]
+ p = P(k)/list + p
+ end
+ else
+ for i=1,#keys do
+ local k = keys[i]
+ local v = list[k]
+ if p then
+ p = P(k) + p
+ else
+ p = P(k)
+ end
+ end
+ if p then
+ p = p / list
+ end
+ end
+ elseif checked then
+ -- problem: substitution gives a capture
+ local keys = sortedkeys(list)
+ for i=1,#keys do
+ local k = keys[i]
+ local v = list[k]
+ if p then
+ if k == v then
+ p = P(k) + p
+ else
+ p = P(k)/v + p
+ end
+ else
+ if k == v then
+ p = P(k)
+ else
+ p = P(k)/v
+ end
+ end
+ end
+ else
+ local keys = sortedkeys(list)
+ for i=1,#keys do
+ local k = keys[i]
+ local v = list[k]
+ if p then
+ p = P(k)/v + p
+ else
+ p = P(k)/v
+ end
+ end
+ end
+ return p
+end
+
+-- inspect(lpeg.append({ a = "1", aa = "1", aaa = "1" } ,nil,true))
+-- inspect(lpeg.append({ ["degree celsius"] = "1", celsius = "1", degree = "1" } ,nil,true))
+
+-- function lpeg.exact_match(words,case_insensitive)
+-- local pattern = concat(words)
+-- if case_insensitive then
+-- local pattern = S(upper(characters)) + S(lower(characters))
+-- local list = { }
+-- for i=1,#words do
+-- list[lower(words[i])] = true
+-- end
+-- return Cmt(pattern^1, function(_,i,s)
+-- return list[lower(s)] and i
+-- end)
+-- else
+-- local pattern = S(concat(words))
+-- local list = { }
+-- for i=1,#words do
+-- list[words[i]] = true
+-- end
+-- return Cmt(pattern^1, function(_,i,s)
+-- return list[s] and i
+-- end)
+-- end
+-- end
+
+-- experiment:
+
+local function make(t)
+ local p
+ local keys = sortedkeys(t)
+ for i=1,#keys do
+ local k = keys[i]
+ local v = t[k]
+ if not p then
+ if next(v) then
+ p = P(k) * make(v)
+ else
+ p = P(k)
+ end
+ else
+ if next(v) then
+ p = p + P(k) * make(v)
+ else
+ p = p + P(k)
+ end
+ end
+ end
+ return p
+end
+
+function lpeg.utfchartabletopattern(list) -- goes to util-lpg
+ local tree = { }
+ for i=1,#list do
+ local t = tree
+ for c in gmatch(list[i],".") do
+ if not t[c] then
+ t[c] = { }
+ end
+ t = t[c]
+ end
+ end
+ return make(tree)
+end
+
+-- inspect ( lpeg.utfchartabletopattern {
+-- utfchar(0x00A0), -- nbsp
+-- utfchar(0x2000), -- enquad
+-- utfchar(0x2001), -- emquad
+-- utfchar(0x2002), -- enspace
+-- utfchar(0x2003), -- emspace
+-- utfchar(0x2004), -- threeperemspace
+-- utfchar(0x2005), -- fourperemspace
+-- utfchar(0x2006), -- sixperemspace
+-- utfchar(0x2007), -- figurespace
+-- utfchar(0x2008), -- punctuationspace
+-- utfchar(0x2009), -- breakablethinspace
+-- utfchar(0x200A), -- hairspace
+-- utfchar(0x200B), -- zerowidthspace
+-- utfchar(0x202F), -- narrownobreakspace
+-- utfchar(0x205F), -- math thinspace
+-- } )
+
+-- a few handy ones:
+--
+-- faster than find(str,"[\n\r]") when match and # > 7 and always faster when # > 3
+
+patterns.containseol = lpeg.finder(eol) -- (1-eol)^0 * eol
+
+end -- closure
do -- begin closure to overcome local limits and interference
@@ -29,40 +812,46 @@ if not modules then modules = { } end modules ['l-string'] = {
}
local string = string
-local sub, gsub, find, match, gmatch, format, char, byte, rep, lower = string.sub, string.gsub, string.find, string.match, string.gmatch, string.format, string.char, string.byte, string.rep, string.lower
-local lpegmatch, S, C, Ct = lpeg.match, lpeg.S, lpeg.C, lpeg.Ct
-
--- some functions may disappear as they are not used anywhere
+local sub, gmatch, format, char, byte, rep, lower = string.sub, string.gmatch, string.format, string.char, string.byte, string.rep, string.lower
+local lpegmatch, patterns = lpeg.match, lpeg.patterns
+local P, S, C, Ct, Cc, Cs = lpeg.P, lpeg.S, lpeg.C, lpeg.Ct, lpeg.Cc, lpeg.Cs
-if not string.split then
+-- Some functions are already defined in l-lpeg and maybe some from here will
+-- move there (unless we also expose caches).
- -- this will be overloaded by a faster lpeg variant
+-- if not string.split then
+--
+-- function string.split(str,pattern)
+-- local t = { }
+-- if #str > 0 then
+-- local n = 1
+-- for s in gmatch(str..pattern,"(.-)"..pattern) do
+-- t[n] = s
+-- n = n + 1
+-- end
+-- end
+-- return t
+-- end
+--
+-- end
- function string.split(str,pattern)
- local t = { }
- if #str > 0 then
- local n = 1
- for s in gmatch(str..pattern,"(.-)"..pattern) do
- t[n] = s
- n = n + 1
- end
- end
- return t
- end
+-- function string.unquoted(str)
+-- return (gsub(str,"^([\"\'])(.*)%1$","%2")) -- interesting pattern
+-- end
-end
+local unquoted = patterns.squote * C(patterns.nosquote) * patterns.squote
+ + patterns.dquote * C(patterns.nodquote) * patterns.dquote
function string.unquoted(str)
- return (gsub(str,"^([\"\'])(.*)%1$","%2"))
+ return lpegmatch(unquoted,str) or str
end
---~ function stringunquoted(str)
---~ if find(str,"^[\'\"]") then
---~ return sub(str,2,-2)
---~ else
---~ return str
---~ end
---~ end
+-- print(string.unquoted("test"))
+-- print(string.unquoted([["t\"est"]]))
+-- print(string.unquoted([["t\"est"x]]))
+-- print(string.unquoted("\'test\'"))
+-- print(string.unquoted('"test"'))
+-- print(string.unquoted('"test"'))
function string.quoted(str)
return format("%q",str) -- always "
@@ -85,65 +874,112 @@ function string.limit(str,n,sentinel) -- not utf proof
end
end
-local space = S(" \t\v\n")
-local nospace = 1 - space
-local stripper = space^0 * C((space^0 * nospace^1)^0) -- roberto's code
+local stripper = patterns.stripper
+local collapser = patterns.collapser
function string.strip(str)
return lpegmatch(stripper,str) or ""
end
+function string.collapsespaces(str)
+ return lpegmatch(collapser,str) or ""
+end
+
+-- function string.is_empty(str)
+-- return not find(str,"%S")
+-- end
+
+local pattern = P(" ")^0 * P(-1)
+
function string.is_empty(str)
- return not find(str,"%S")
+ if str == "" then
+ return true
+ else
+ return lpegmatch(pattern,str) and true or false
+ end
end
-local patterns_escapes = {
- ["%"] = "%%",
- ["."] = "%.",
- ["+"] = "%+", ["-"] = "%-", ["*"] = "%*",
- ["["] = "%[", ["]"] = "%]",
- ["("] = "%(", [")"] = "%)",
- -- ["{"] = "%{", ["}"] = "%}"
- -- ["^"] = "%^", ["$"] = "%$",
-}
-local simple_escapes = {
- ["-"] = "%-",
- ["."] = "%.",
- ["?"] = ".",
- ["*"] = ".*",
-}
+-- if not string.escapedpattern then
+--
+-- local patterns_escapes = {
+-- ["%"] = "%%",
+-- ["."] = "%.",
+-- ["+"] = "%+", ["-"] = "%-", ["*"] = "%*",
+-- ["["] = "%[", ["]"] = "%]",
+-- ["("] = "%(", [")"] = "%)",
+-- -- ["{"] = "%{", ["}"] = "%}"
+-- -- ["^"] = "%^", ["$"] = "%$",
+-- }
+--
+-- local simple_escapes = {
+-- ["-"] = "%-",
+-- ["."] = "%.",
+-- ["?"] = ".",
+-- ["*"] = ".*",
+-- }
+--
+-- function string.escapedpattern(str,simple)
+-- return (gsub(str,".",simple and simple_escapes or patterns_escapes))
+-- end
+--
+-- function string.topattern(str,lowercase,strict)
+-- if str == "" then
+-- return ".*"
+-- else
+-- str = gsub(str,".",simple_escapes)
+-- if lowercase then
+-- str = lower(str)
+-- end
+-- if strict then
+-- return "^" .. str .. "$"
+-- else
+-- return str
+-- end
+-- end
+-- end
+--
+-- end
+
+--- needs checking
+
+local anything = patterns.anything
+local allescapes = Cc("%") * S(".-+%?()[]*") -- also {} and ^$ ?
+local someescapes = Cc("%") * S(".-+%()[]") -- also {} and ^$ ?
+local matchescapes = Cc(".") * S("*?") -- wildcard and single match
+
+local pattern_a = Cs ( ( allescapes + anything )^0 )
+local pattern_b = Cs ( ( someescapes + matchescapes + anything )^0 )
+local pattern_c = Cs ( Cc("^") * ( someescapes + matchescapes + anything )^0 * Cc("$") )
function string.escapedpattern(str,simple)
- return (gsub(str,".",simple and simple_escapes or patterns_escapes))
+ return lpegmatch(simple and pattern_b or pattern_a,str)
end
function string.topattern(str,lowercase,strict)
if str == "" then
return ".*"
+ elseif strict then
+ str = lpegmatch(pattern_c,str)
else
- str = gsub(str,".",simple_escapes)
- if lowercase then
- str = lower(str)
- end
- if strict then
- return "^" .. str .. "$"
- else
- return str
- end
+ str = lpegmatch(pattern_b,str)
+ end
+ if lowercase then
+ return lower(str)
+ else
+ return str
end
end
+-- print(string.escapedpattern("12+34*.tex",false))
+-- print(string.escapedpattern("12+34*.tex",true))
+-- print(string.topattern ("12+34*.tex",false,false))
+-- print(string.topattern ("12+34*.tex",false,true))
function string.valid(str,default)
return (type(str) == "string" and str ~= "" and str) or default or nil
end
--- obsolete names:
-
-string.quote = string.quoted
-string.unquote = string.unquoted
-
-- handy fallback
string.itself = function(s) return s end
@@ -156,6 +992,19 @@ function string.totable(str)
return lpegmatch(pattern,str)
end
+-- handy from within tex:
+
+local replacer = lpeg.replacer("@","%%") -- Watch the escaped % in lpeg!
+
+function string.tformat(fmt,...)
+ return format(lpegmatch(replacer,fmt),...)
+end
+
+-- obsolete names:
+
+string.quote = string.quoted
+string.unquote = string.unquoted
+
end -- closure
do -- begin closure to overcome local limits and interference
@@ -168,68 +1017,23 @@ if not modules then modules = { } end modules ['l-table'] = {
license = "see context related readme files"
}
-local type, next, tostring, tonumber, ipairs = type, next, tostring, tonumber, ipairs
+local type, next, tostring, tonumber, ipairs, select = type, next, tostring, tonumber, ipairs, select
local table, string = table, string
local concat, sort, insert, remove = table.concat, table.sort, table.insert, table.remove
-local format, find, gsub, lower, dump, match = string.format, string.find, string.gsub, string.lower, string.dump, string.match
+local format, lower, dump = string.format, string.lower, string.dump
local getmetatable, setmetatable = getmetatable, setmetatable
local getinfo = debug.getinfo
-
--- Starting with version 5.2 Lua no longer provide ipairs, which makes
--- sense. As we already used the for loop and # in most places the
--- impact on ConTeXt was not that large; the remaining ipairs already
--- have been replaced. In a similar fashion we also hardly used pairs.
---
--- Hm, actually ipairs was retained, but we no longer use it anyway.
---
--- Just in case, we provide the fallbacks as discussed in Programming
--- in Lua (http://www.lua.org/pil/7.3.html):
-
-if not ipairs then
-
- -- for k, v in ipairs(t) do ... end
- -- for k=1,#t do local v = t[k] ... end
-
- local function iterate(a,i)
- i = i + 1
- local v = a[i]
- if v ~= nil then
- return i, v --, nil
- end
- end
-
- function ipairs(a)
- return iterate, a, 0
- end
-
-end
-
-if not pairs then
-
- -- for k, v in pairs(t) do ... end
- -- for k, v in next, t do ... end
-
- function pairs(t)
- return next, t -- , nil
- end
-
-end
-
--- Also, unpack has been moved to the table table, and for compatiility
--- reasons we provide both now.
-
-if not table.unpack then
- table.unpack = _G.unpack
-elseif not unpack then
- _G.unpack = table.unpack
-end
+local lpegmatch, patterns = lpeg.match, lpeg.patterns
+local floor = math.floor
-- extra functions, some might go (when not used)
+local stripper = patterns.stripper
+
function table.strip(tab)
local lst, l = { }, 0
for i=1,#tab do
- local s = gsub(tab[i],"^%s*(.-)%s*$","%1")
+ local s = lpegmatch(stripper,tab[i]) or ""
if s == "" then
-- skip this one
else
@@ -338,7 +1142,7 @@ local function sortedhash(t)
end
table.sortedhash = sortedhash
-table.sortedpairs = sortedhash
+table.sortedpairs = sortedhash -- obsolete
function table.append(t,list)
local n = #t
@@ -362,31 +1166,63 @@ function table.prepend(t, list)
return t
end
+-- function table.merge(t, ...) -- first one is target
+-- t = t or { }
+-- local lst = { ... }
+-- for i=1,#lst do
+-- for k, v in next, lst[i] do
+-- t[k] = v
+-- end
+-- end
+-- return t
+-- end
+
function table.merge(t, ...) -- first one is target
t = t or { }
- local lst = { ... }
- for i=1,#lst do
- for k, v in next, lst[i] do
+ for i=1,select("#",...) do
+ for k, v in next, (select(i,...)) do
t[k] = v
end
end
return t
end
+-- function table.merged(...)
+-- local tmp, lst = { }, { ... }
+-- for i=1,#lst do
+-- for k, v in next, lst[i] do
+-- tmp[k] = v
+-- end
+-- end
+-- return tmp
+-- end
+
function table.merged(...)
- local tmp, lst = { }, { ... }
- for i=1,#lst do
- for k, v in next, lst[i] do
- tmp[k] = v
+ local t = { }
+ for i=1,select("#",...) do
+ for k, v in next, (select(i,...)) do
+ t[k] = v
end
end
- return tmp
+ return t
end
+-- function table.imerge(t, ...)
+-- local lst, nt = { ... }, #t
+-- for i=1,#lst do
+-- local nst = lst[i]
+-- for j=1,#nst do
+-- nt = nt + 1
+-- t[nt] = nst[j]
+-- end
+-- end
+-- return t
+-- end
+
function table.imerge(t, ...)
- local lst, nt = { ... }, #t
- for i=1,#lst do
- local nst = lst[i]
+ local nt = #t
+ for i=1,select("#",...) do
+ local nst = select(i,...)
for j=1,#nst do
nt = nt + 1
t[nt] = nst[j]
@@ -395,10 +1231,22 @@ function table.imerge(t, ...)
return t
end
+-- function table.imerged(...)
+-- local tmp, ntmp, lst = { }, 0, {...}
+-- for i=1,#lst do
+-- local nst = lst[i]
+-- for j=1,#nst do
+-- ntmp = ntmp + 1
+-- tmp[ntmp] = nst[j]
+-- end
+-- end
+-- return tmp
+-- end
+
function table.imerged(...)
- local tmp, ntmp, lst = { }, 0, {...}
- for i=1,#lst do
- local nst = lst[i]
+ local tmp, ntmp = { }, 0
+ for i=1,select("#",...) do
+ local nst = select(i,...)
for j=1,#nst do
ntmp = ntmp + 1
tmp[ntmp] = nst[j]
@@ -410,7 +1258,7 @@ end
local function fastcopy(old,metatabletoo) -- fast one
if old then
local new = { }
- for k,v in next, old do
+ for k, v in next, old do
if type(v) == "table" then
new[k] = fastcopy(v,metatabletoo) -- was just table.copy
else
@@ -464,7 +1312,7 @@ end
table.fastcopy = fastcopy
table.copy = copy
-function table.derive(parent)
+function table.derive(parent) -- for the moment not public
local child = { }
if parent then
setmetatable(child,{ __index = parent })
@@ -545,6 +1393,13 @@ end
-- problem: there no good number_to_string converter with the best resolution
+-- probably using .. is faster than format
+-- maybe split in a few cases (yes/no hexify)
+
+-- todo: %g faster on numbers than %s
+
+local propername = patterns.propername -- was find(name,"^%a[%w%_]*$")
+
local function dummy() end
local function do_serialize(root,name,depth,level,indexed)
@@ -554,14 +1409,14 @@ local function do_serialize(root,name,depth,level,indexed)
handle(format("%s{",depth))
else
local tn = type(name)
- if tn == "number" then -- or find(k,"^%d+$") then
+ if tn == "number" then
if hexify then
handle(format("%s[0x%04X]={",depth,name))
else
handle(format("%s[%s]={",depth,name))
end
elseif tn == "string" then
- if noquotes and not reserved[name] and find(name,"^%a[%w%_]*$") then
+ if noquotes and not reserved[name] and lpegmatch(propername,name) then
handle(format("%s%s={",depth,name))
else
handle(format("%s[%q]={",depth,name))
@@ -587,7 +1442,6 @@ local function do_serialize(root,name,depth,level,indexed)
if compact then
last = #root
for k=1,last do
--- if not root[k] then
if root[k] == nil then
last = k - 1
break
@@ -635,7 +1489,7 @@ local function do_serialize(root,name,depth,level,indexed)
handle(format("%s %s,",depth,tostring(v)))
elseif t == "function" then
if functions then
- handle(format('%s loadstring(%q),',depth,dump(v)))
+ handle(format('%s load(%q),',depth,dump(v)))
else
handle(format('%s "function",',depth))
end
@@ -647,7 +1501,7 @@ local function do_serialize(root,name,depth,level,indexed)
handle(format("%s __p__=nil,",depth))
end
elseif t == "number" then
- if tk == "number" then -- or find(k,"^%d+$") then
+ if tk == "number" then
if hexify then
handle(format("%s [0x%04X]=0x%04X,",depth,k,v))
else
@@ -659,7 +1513,7 @@ local function do_serialize(root,name,depth,level,indexed)
else
handle(format("%s [%s]=%s,",depth,tostring(k),v)) -- %.99g
end
- elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") then
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
if hexify then
handle(format("%s %s=0x%04X,",depth,k,v))
else
@@ -674,7 +1528,7 @@ local function do_serialize(root,name,depth,level,indexed)
end
elseif t == "string" then
if reduce and tonumber(v) then
- if tk == "number" then -- or find(k,"^%d+$") then
+ if tk == "number" then
if hexify then
handle(format("%s [0x%04X]=%s,",depth,k,v))
else
@@ -682,13 +1536,13 @@ local function do_serialize(root,name,depth,level,indexed)
end
elseif tk == "boolean" then
handle(format("%s [%s]=%s,",depth,tostring(k),v))
- elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") then
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
handle(format("%s %s=%s,",depth,k,v))
else
handle(format("%s [%q]=%s,",depth,k,v))
end
else
- if tk == "number" then -- or find(k,"^%d+$") then
+ if tk == "number" then
if hexify then
handle(format("%s [0x%04X]=%q,",depth,k,v))
else
@@ -696,7 +1550,7 @@ local function do_serialize(root,name,depth,level,indexed)
end
elseif tk == "boolean" then
handle(format("%s [%s]=%q,",depth,tostring(k),v))
- elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") then
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
handle(format("%s %s=%q,",depth,k,v))
else
handle(format("%s [%q]=%q,",depth,k,v))
@@ -704,7 +1558,7 @@ local function do_serialize(root,name,depth,level,indexed)
end
elseif t == "table" then
if not next(v) then
- if tk == "number" then -- or find(k,"^%d+$") then
+ if tk == "number" then
if hexify then
handle(format("%s [0x%04X]={},",depth,k))
else
@@ -712,7 +1566,7 @@ local function do_serialize(root,name,depth,level,indexed)
end
elseif tk == "boolean" then
handle(format("%s [%s]={},",depth,tostring(k)))
- elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") then
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
handle(format("%s %s={},",depth,k))
else
handle(format("%s [%q]={},",depth,k))
@@ -720,15 +1574,15 @@ local function do_serialize(root,name,depth,level,indexed)
elseif inline then
local st = simple_table(v)
if st then
- if tk == "number" then -- or find(k,"^%d+$") then
+ if tk == "number" then
if hexify then
handle(format("%s [0x%04X]={ %s },",depth,k,concat(st,", ")))
else
handle(format("%s [%s]={ %s },",depth,k,concat(st,", ")))
end
- elseif tk == "boolean" then -- or find(k,"^%d+$") then
+ elseif tk == "boolean" then
handle(format("%s [%s]={ %s },",depth,tostring(k),concat(st,", ")))
- elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") then
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
handle(format("%s %s={ %s },",depth,k,concat(st,", ")))
else
handle(format("%s [%q]={ %s },",depth,k,concat(st,", ")))
@@ -740,15 +1594,15 @@ local function do_serialize(root,name,depth,level,indexed)
do_serialize(v,k,depth,level+1)
end
elseif t == "boolean" then
- if tk == "number" then -- or find(k,"^%d+$") then
+ if tk == "number" then
if hexify then
handle(format("%s [0x%04X]=%s,",depth,k,tostring(v)))
else
handle(format("%s [%s]=%s,",depth,k,tostring(v)))
end
- elseif tk == "boolean" then -- or find(k,"^%d+$") then
+ elseif tk == "boolean" then
handle(format("%s [%s]=%s,",depth,tostring(k),tostring(v)))
- elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") then
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
handle(format("%s %s=%s,",depth,k,tostring(v)))
else
handle(format("%s [%q]=%s,",depth,k,tostring(v)))
@@ -757,30 +1611,30 @@ local function do_serialize(root,name,depth,level,indexed)
if functions then
local f = getinfo(v).what == "C" and dump(dummy) or dump(v)
-- local f = getinfo(v).what == "C" and dump(function(...) return v(...) end) or dump(v)
- if tk == "number" then -- or find(k,"^%d+$") then
+ if tk == "number" then
if hexify then
- handle(format("%s [0x%04X]=loadstring(%q),",depth,k,f))
+ handle(format("%s [0x%04X]=load(%q),",depth,k,f))
else
- handle(format("%s [%s]=loadstring(%q),",depth,k,f))
+ handle(format("%s [%s]=load(%q),",depth,k,f))
end
elseif tk == "boolean" then
- handle(format("%s [%s]=loadstring(%q),",depth,tostring(k),f))
- elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") then
- handle(format("%s %s=loadstring(%q),",depth,k,f))
+ handle(format("%s [%s]=load(%q),",depth,tostring(k),f))
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+ handle(format("%s %s=load(%q),",depth,k,f))
else
- handle(format("%s [%q]=loadstring(%q),",depth,k,f))
+ handle(format("%s [%q]=load(%q),",depth,k,f))
end
end
else
- if tk == "number" then -- or find(k,"^%d+$") then
+ if tk == "number" then
if hexify then
handle(format("%s [0x%04X]=%q,",depth,k,tostring(v)))
else
handle(format("%s [%s]=%q,",depth,k,tostring(v)))
end
- elseif tk == "boolean" then -- or find(k,"^%d+$") then
+ elseif tk == "boolean" then
handle(format("%s [%s]=%q,",depth,tostring(k),tostring(v)))
- elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") then
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
handle(format("%s %s=%q,",depth,k,tostring(v)))
else
handle(format("%s [%q]=%q,",depth,k,tostring(v)))
@@ -861,14 +1715,14 @@ local function serialize(_handle,root,name,specification) -- handle wins
handle("}")
end
---~ name:
---~
---~ true : return { }
---~ false : { }
---~ nil : t = { }
---~ string : string = { }
---~ 'return' : return { }
---~ number : [number] = { }
+-- name:
+--
+-- true : return { }
+-- false : { }
+-- nil : t = { }
+-- string : string = { }
+-- "return" : return { }
+-- number : [number] = { }
function table.serialize(root,name,specification)
local t, n = { }, 0
@@ -957,7 +1811,7 @@ table.flattened = flattened
local function unnest(t,f) -- only used in mk, for old times sake
if not f then -- and only relevant for token lists
- f = { }
+ f = { } -- this one can become obsolete
end
for i=1,#t do
local v = t[i]
@@ -986,7 +1840,7 @@ local function are_equal(a,b,n,m) -- indexed
local ai, bi = a[i], b[i]
if ai==bi then
-- same
- elseif type(ai)=="table" and type(bi)=="table" then
+ elseif type(ai) == "table" and type(bi) == "table" then
if not are_equal(ai,bi) then
return false
end
@@ -1021,10 +1875,10 @@ table.are_equal = are_equal
-- maybe also make a combined one
-function table.compact(t)
+function table.compact(t) -- remove empty tables, assumes subtables
if t then
- for k,v in next, t do
- if not next(v) then
+ for k, v in next, t do
+ if not next(v) then -- no type checking
t[k] = nil
end
end
@@ -1063,7 +1917,7 @@ function table.swapped(t,s) -- hash
return n
end
-function table.mirror(t) -- hash
+function table.mirrored(t) -- hash
local n = { }
for k, v in next, t do
n[v] = k
@@ -1086,6 +1940,17 @@ function table.reversed(t)
end
end
+function table.reverse(t)
+ if t then
+ local n = #t
+ for i=1,floor(n/2) do
+ local j = n - i + 1
+ t[i], t[j] = t[j], t[i]
+ end
+ return t
+ end
+end
+
function table.sequenced(t,sep) -- hash only
if t then
local s, n = { }, 0
@@ -1172,886 +2037,6 @@ end -- closure
do -- begin closure to overcome local limits and interference
-if not modules then modules = { } end modules ['l-lpeg'] = {
- version = 1.001,
- comment = "companion to luat-lib.mkiv",
- author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
- copyright = "PRAGMA ADE / ConTeXt Development Team",
- license = "see context related readme files"
-}
-
-
--- a new lpeg fails on a #(1-P(":")) test and really needs a + P(-1)
-
-local lpeg = require("lpeg")
-
--- tracing (only used when we encounter a problem in integration of lpeg in luatex)
-
--- some code will move to unicode and string
-
-local report = texio and texio.write_nl or print
-
--- local lpmatch = lpeg.match
--- local lpprint = lpeg.print
--- local lpp = lpeg.P
--- local lpr = lpeg.R
--- local lps = lpeg.S
--- local lpc = lpeg.C
--- local lpb = lpeg.B
--- local lpv = lpeg.V
--- local lpcf = lpeg.Cf
--- local lpcb = lpeg.Cb
--- local lpcg = lpeg.Cg
--- local lpct = lpeg.Ct
--- local lpcs = lpeg.Cs
--- local lpcc = lpeg.Cc
--- local lpcmt = lpeg.Cmt
--- local lpcarg = lpeg.Carg
-
--- function lpeg.match(l,...) report("LPEG MATCH") lpprint(l) return lpmatch(l,...) end
-
--- function lpeg.P (l) local p = lpp (l) report("LPEG P =") lpprint(l) return p end
--- function lpeg.R (l) local p = lpr (l) report("LPEG R =") lpprint(l) return p end
--- function lpeg.S (l) local p = lps (l) report("LPEG S =") lpprint(l) return p end
--- function lpeg.C (l) local p = lpc (l) report("LPEG C =") lpprint(l) return p end
--- function lpeg.B (l) local p = lpb (l) report("LPEG B =") lpprint(l) return p end
--- function lpeg.V (l) local p = lpv (l) report("LPEG V =") lpprint(l) return p end
--- function lpeg.Cf (l) local p = lpcf (l) report("LPEG Cf =") lpprint(l) return p end
--- function lpeg.Cb (l) local p = lpcb (l) report("LPEG Cb =") lpprint(l) return p end
--- function lpeg.Cg (l) local p = lpcg (l) report("LPEG Cg =") lpprint(l) return p end
--- function lpeg.Ct (l) local p = lpct (l) report("LPEG Ct =") lpprint(l) return p end
--- function lpeg.Cs (l) local p = lpcs (l) report("LPEG Cs =") lpprint(l) return p end
--- function lpeg.Cc (l) local p = lpcc (l) report("LPEG Cc =") lpprint(l) return p end
--- function lpeg.Cmt (l) local p = lpcmt (l) report("LPEG Cmt =") lpprint(l) return p end
--- function lpeg.Carg (l) local p = lpcarg(l) report("LPEG Carg =") lpprint(l) return p end
-
-local type, next = type, next
-local byte, char, gmatch, format = string.byte, string.char, string.gmatch, string.format
-
--- Beware, we predefine a bunch of patterns here and one reason for doing so
--- is that we get consistent behaviour in some of the visualizers.
-
-lpeg.patterns = lpeg.patterns or { } -- so that we can share
-local patterns = lpeg.patterns
-
-local P, R, S, V, Ct, C, Cs, Cc, Cp = lpeg.P, lpeg.R, lpeg.S, lpeg.V, lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc, lpeg.Cp
-local lpegtype, lpegmatch = lpeg.type, lpeg.match
-
-local utfcharacters = string.utfcharacters
-local utfgmatch = unicode and unicode.utf8.gmatch
-
-local anything = P(1)
-local endofstring = P(-1)
-local alwaysmatched = P(true)
-
-patterns.anything = anything
-patterns.endofstring = endofstring
-patterns.beginofstring = alwaysmatched
-patterns.alwaysmatched = alwaysmatched
-
-local digit, sign = R('09'), S('+-')
-local cr, lf, crlf = P("\r"), P("\n"), P("\r\n")
-local newline = crlf + S("\r\n") -- cr + lf
-local escaped = P("\\") * anything
-local squote = P("'")
-local dquote = P('"')
-local space = P(" ")
-
-local utfbom_32_be = P('\000\000\254\255')
-local utfbom_32_le = P('\255\254\000\000')
-local utfbom_16_be = P('\255\254')
-local utfbom_16_le = P('\254\255')
-local utfbom_8 = P('\239\187\191')
-local utfbom = utfbom_32_be + utfbom_32_le
- + utfbom_16_be + utfbom_16_le
- + utfbom_8
-local utftype = utfbom_32_be / "utf-32-be" + utfbom_32_le / "utf-32-le"
- + utfbom_16_be / "utf-16-be" + utfbom_16_le / "utf-16-le"
- + utfbom_8 / "utf-8" + alwaysmatched / "unknown"
-
-local utf8next = R("\128\191")
-
-patterns.utf8one = R("\000\127")
-patterns.utf8two = R("\194\223") * utf8next
-patterns.utf8three = R("\224\239") * utf8next * utf8next
-patterns.utf8four = R("\240\244") * utf8next * utf8next * utf8next
-patterns.utfbom = utfbom
-patterns.utftype = utftype
-
-local utf8char = patterns.utf8one + patterns.utf8two + patterns.utf8three + patterns.utf8four
-local validutf8char = utf8char^0 * endofstring * Cc(true) + Cc(false)
-
-patterns.utf8 = utf8char
-patterns.utf8char = utf8char
-patterns.validutf8 = validutf8char
-patterns.validutf8char = validutf8char
-
-local eol = S("\n\r")
-local spacer = S(" \t\f\v") -- + char(0xc2, 0xa0) if we want utf (cf mail roberto)
-local whitespace = eol + spacer
-
-patterns.digit = digit
-patterns.sign = sign
-patterns.cardinal = sign^0 * digit^1
-patterns.integer = sign^0 * digit^1
-patterns.unsigned = digit^0 * P('.') * digit^1
-patterns.float = sign^0 * patterns.unsigned
-patterns.cunsigned = digit^0 * P(',') * digit^1
-patterns.cfloat = sign^0 * patterns.cunsigned
-patterns.number = patterns.float + patterns.integer
-patterns.cnumber = patterns.cfloat + patterns.integer
-patterns.oct = P("0") * R("07")^1
-patterns.octal = patterns.oct
-patterns.HEX = P("0x") * R("09","AF")^1
-patterns.hex = P("0x") * R("09","af")^1
-patterns.hexadecimal = P("0x") * R("09","AF","af")^1
-patterns.lowercase = R("az")
-patterns.uppercase = R("AZ")
-patterns.letter = patterns.lowercase + patterns.uppercase
-patterns.space = space
-patterns.tab = P("\t")
-patterns.spaceortab = patterns.space + patterns.tab
-patterns.eol = eol
-patterns.spacer = spacer
-patterns.whitespace = whitespace
-patterns.newline = newline
-patterns.emptyline = newline^1
-patterns.nonspacer = 1 - spacer
-patterns.nonwhitespace = 1 - whitespace
-patterns.equal = P("=")
-patterns.comma = P(",")
-patterns.commaspacer = P(",") * spacer^0
-patterns.period = P(".")
-patterns.colon = P(":")
-patterns.semicolon = P(";")
-patterns.underscore = P("_")
-patterns.escaped = escaped
-patterns.squote = squote
-patterns.dquote = dquote
-patterns.nosquote = (escaped + (1-squote))^0
-patterns.nodquote = (escaped + (1-dquote))^0
-patterns.unsingle = (squote/"") * patterns.nosquote * (squote/"")
-patterns.undouble = (dquote/"") * patterns.nodquote * (dquote/"")
-patterns.unquoted = patterns.undouble + patterns.unsingle -- more often undouble
-patterns.unspacer = ((patterns.spacer^1)/"")^0
-
-patterns.singlequoted = squote * patterns.nosquote * squote
-patterns.doublequoted = dquote * patterns.nodquote * dquote
-patterns.quoted = patterns.doublequoted + patterns.singlequoted
-
-patterns.somecontent = (anything - newline - space)^1 -- (utf8char - newline - space)^1
-patterns.beginline = #(1-newline)
-
--- print(string.unquoted("test"))
--- print(string.unquoted([["t\"est"]]))
--- print(string.unquoted([["t\"est"x]]))
--- print(string.unquoted("\'test\'"))
--- print(string.unquoted('"test"'))
--- print(string.unquoted('"test"'))
-
-local function anywhere(pattern) --slightly adapted from website
- return P { P(pattern) + 1 * V(1) }
-end
-
-lpeg.anywhere = anywhere
-
-function lpeg.instringchecker(p)
- p = anywhere(p)
- return function(str)
- return lpegmatch(p,str) and true or false
- end
-end
-
-function lpeg.splitter(pattern, action)
- return (((1-P(pattern))^1)/action+1)^0
-end
-
-function lpeg.tsplitter(pattern, action)
- return Ct((((1-P(pattern))^1)/action+1)^0)
-end
-
--- probleem: separator can be lpeg and that does not hash too well, but
--- it's quite okay as the key is then not garbage collected
-
-local splitters_s, splitters_m, splitters_t = { }, { }, { }
-
-local function splitat(separator,single)
- local splitter = (single and splitters_s[separator]) or splitters_m[separator]
- if not splitter then
- separator = P(separator)
- local other = C((1 - separator)^0)
- if single then
- local any = anything
- splitter = other * (separator * C(any^0) + "") -- ?
- splitters_s[separator] = splitter
- else
- splitter = other * (separator * other)^0
- splitters_m[separator] = splitter
- end
- end
- return splitter
-end
-
-local function tsplitat(separator)
- local splitter = splitters_t[separator]
- if not splitter then
- splitter = Ct(splitat(separator))
- splitters_t[separator] = splitter
- end
- return splitter
-end
-
-lpeg.splitat = splitat
-lpeg.tsplitat = tsplitat
-
-function string.splitup(str,separator)
- if not separator then
- separator = ","
- end
- return lpegmatch(splitters_m[separator] or splitat(separator),str)
-end
-
---~ local p = splitat("->",false) print(lpegmatch(p,"oeps->what->more")) -- oeps what more
---~ local p = splitat("->",true) print(lpegmatch(p,"oeps->what->more")) -- oeps what->more
---~ local p = splitat("->",false) print(lpegmatch(p,"oeps")) -- oeps
---~ local p = splitat("->",true) print(lpegmatch(p,"oeps")) -- oeps
-
-local cache = { }
-
-function lpeg.split(separator,str)
- local c = cache[separator]
- if not c then
- c = tsplitat(separator)
- cache[separator] = c
- end
- return lpegmatch(c,str)
-end
-
-function string.split(str,separator)
- if separator then
- local c = cache[separator]
- if not c then
- c = tsplitat(separator)
- cache[separator] = c
- end
- return lpegmatch(c,str)
- else
- return { str }
- end
-end
-
-local spacing = patterns.spacer^0 * newline -- sort of strip
-local empty = spacing * Cc("")
-local nonempty = Cs((1-spacing)^1) * spacing^-1
-local content = (empty + nonempty)^1
-
-patterns.textline = content
-
---~ local linesplitter = Ct(content^0)
---~
---~ function string.splitlines(str)
---~ return lpegmatch(linesplitter,str)
---~ end
-
-local linesplitter = tsplitat(newline)
-
-patterns.linesplitter = linesplitter
-
-function string.splitlines(str)
- return lpegmatch(linesplitter,str)
-end
-
-local utflinesplitter = utfbom^-1 * tsplitat(newline)
-
-patterns.utflinesplitter = utflinesplitter
-
-function string.utfsplitlines(str)
- return lpegmatch(utflinesplitter,str or "")
-end
-
-local utfcharsplitter_ows = utfbom^-1 * Ct(C(utf8char)^0)
-local utfcharsplitter_iws = utfbom^-1 * Ct((whitespace^1 + C(utf8char))^0)
-
-function string.utfsplit(str,ignorewhitespace) -- new
- if ignorewhitespace then
- return lpegmatch(utfcharsplitter_iws,str or "")
- else
- return lpegmatch(utfcharsplitter_ows,str or "")
- end
-end
-
--- inspect(string.utfsplit("a b c d"))
--- inspect(string.utfsplit("a b c d",true))
-
--- -- alternative 1: 0.77
---
--- local utfcharcounter = utfbom^-1 * Cs((utf8char/'!')^0)
---
--- function string.utflength(str)
--- return #lpegmatch(utfcharcounter,str or "")
--- end
---
--- -- alternative 2: 1.70
---
--- local n = 0
---
--- local utfcharcounter = utfbom^-1 * (utf8char/function() n = n + 1 end)^0 -- slow
---
--- function string.utflength(str)
--- n = 0
--- lpegmatch(utfcharcounter,str or "")
--- return n
--- end
---
--- -- alternative 3: 0.24 (native unicode.utf8.len: 0.047)
-
-local n = 0
-
-local utfcharcounter = utfbom^-1 * Cs ( (
- Cp() * (lpeg.patterns.utf8one )^1 * Cp() / function(f,t) n = n + t - f end
- + Cp() * (lpeg.patterns.utf8two )^1 * Cp() / function(f,t) n = n + (t - f)/2 end
- + Cp() * (lpeg.patterns.utf8three)^1 * Cp() / function(f,t) n = n + (t - f)/3 end
- + Cp() * (lpeg.patterns.utf8four )^1 * Cp() / function(f,t) n = n + (t - f)/4 end
-)^0 )
-
-function string.utflength(str)
- n = 0
- lpegmatch(utfcharcounter,str or "")
- return n
-end
-
---~ lpeg.splitters = cache -- no longer public
-
-local cache = { }
-
-function lpeg.checkedsplit(separator,str)
- local c = cache[separator]
- if not c then
- separator = P(separator)
- local other = C((1 - separator)^1)
- c = Ct(separator^0 * other * (separator^1 * other)^0)
- cache[separator] = c
- end
- return lpegmatch(c,str)
-end
-
-function string.checkedsplit(str,separator)
- local c = cache[separator]
- if not c then
- separator = P(separator)
- local other = C((1 - separator)^1)
- c = Ct(separator^0 * other * (separator^1 * other)^0)
- cache[separator] = c
- end
- return lpegmatch(c,str)
-end
-
---~ from roberto's site:
-
-local function f2(s) local c1, c2 = byte(s,1,2) return c1 * 64 + c2 - 12416 end
-local function f3(s) local c1, c2, c3 = byte(s,1,3) return (c1 * 64 + c2) * 64 + c3 - 925824 end
-local function f4(s) local c1, c2, c3, c4 = byte(s,1,4) return ((c1 * 64 + c2) * 64 + c3) * 64 + c4 - 63447168 end
-
-local utf8byte = patterns.utf8one/byte + patterns.utf8two/f2 + patterns.utf8three/f3 + patterns.utf8four/f4
-
-patterns.utf8byte = utf8byte
-
---~ local str = " a b c d "
-
---~ local s = lpeg.stripper(lpeg.R("az")) print("["..lpegmatch(s,str).."]")
---~ local s = lpeg.keeper(lpeg.R("az")) print("["..lpegmatch(s,str).."]")
---~ local s = lpeg.stripper("ab") print("["..lpegmatch(s,str).."]")
---~ local s = lpeg.keeper("ab") print("["..lpegmatch(s,str).."]")
-
-local cache = { }
-
-function lpeg.stripper(str)
- if type(str) == "string" then
- local s = cache[str]
- if not s then
- s = Cs(((S(str)^1)/"" + 1)^0)
- cache[str] = s
- end
- return s
- else
- return Cs(((str^1)/"" + 1)^0)
- end
-end
-
-local cache = { }
-
-function lpeg.keeper(str)
- if type(str) == "string" then
- local s = cache[str]
- if not s then
- s = Cs((((1-S(str))^1)/"" + 1)^0)
- cache[str] = s
- end
- return s
- else
- return Cs((((1-str)^1)/"" + 1)^0)
- end
-end
-
-function lpeg.frontstripper(str) -- or pattern (yet undocumented)
- return (P(str) + P(true)) * Cs(anything^0)
-end
-
-function lpeg.endstripper(str) -- or pattern (yet undocumented)
- return Cs((1 - P(str) * endofstring)^0)
-end
-
--- Just for fun I looked at the used bytecode and
--- p = (p and p + pp) or pp gets one more (testset).
-
-function lpeg.replacer(one,two,makefunction)
- local pattern
- if type(one) == "table" then
- local no = #one
- local p = P(false)
- if no == 0 then
- for k, v in next, one do
- p = p + P(k) / v
- end
- pattern = Cs((p + 1)^0)
- elseif no == 1 then
- local o = one[1]
- one, two = P(o[1]), o[2]
- -- pattern = Cs(((1-one)^1 + one/two)^0)
- pattern = Cs((one/two + 1)^0)
- else
- for i=1,no do
- local o = one[i]
- p = p + P(o[1]) / o[2]
- end
- pattern = Cs((p + 1)^0)
- end
- else
- one = P(one)
- two = two or ""
- -- pattern = Cs(((1-one)^1 + one/two)^0)
- pattern = Cs((one/two +1)^0)
- end
- if makefunction then
- return function(str)
- return lpegmatch(pattern,str)
- end
- else
- return pattern
- end
-end
-
-function lpeg.finder(lst,makefunction)
- local pattern
- if type(lst) == "table" then
- local p = P(false)
- for i=1,#lst do
- p = p + P(lst[i])
- end
- pattern = (p + 1)^0
- else
- pattern = (P(lst) + 1)^0
- end
- if makefunction then
- return function(str)
- return lpegmatch(pattern,str)
- end
- else
- return pattern
- end
-end
-
--- print(lpeg.match(lpeg.replacer("e","a"),"test test"))
--- print(lpeg.match(lpeg.replacer{{"e","a"}},"test test"))
--- print(lpeg.match(lpeg.replacer({ e = "a", t = "x" }),"test test"))
-
-local splitters_f, splitters_s = { }, { }
-
-function lpeg.firstofsplit(separator) -- always return value
- local splitter = splitters_f[separator]
- if not splitter then
- separator = P(separator)
- splitter = C((1 - separator)^0)
- splitters_f[separator] = splitter
- end
- return splitter
-end
-
-function lpeg.secondofsplit(separator) -- nil if not split
- local splitter = splitters_s[separator]
- if not splitter then
- separator = P(separator)
- splitter = (1 - separator)^0 * separator * C(anything^0)
- splitters_s[separator] = splitter
- end
- return splitter
-end
-
-function lpeg.balancer(left,right)
- left, right = P(left), P(right)
- return P { left * ((1 - left - right) + V(1))^0 * right }
-end
-
---~ print(1,lpegmatch(lpeg.firstofsplit(":"),"bc:de"))
---~ print(2,lpegmatch(lpeg.firstofsplit(":"),":de")) -- empty
---~ print(3,lpegmatch(lpeg.firstofsplit(":"),"bc"))
---~ print(4,lpegmatch(lpeg.secondofsplit(":"),"bc:de"))
---~ print(5,lpegmatch(lpeg.secondofsplit(":"),"bc:")) -- empty
---~ print(6,lpegmatch(lpeg.secondofsplit(":",""),"bc"))
---~ print(7,lpegmatch(lpeg.secondofsplit(":"),"bc"))
---~ print(9,lpegmatch(lpeg.secondofsplit(":","123"),"bc"))
-
---~ -- slower:
---~
---~ function lpeg.counter(pattern)
---~ local n, pattern = 0, (lpeg.P(pattern)/function() n = n + 1 end + lpeg.anything)^0
---~ return function(str) n = 0 ; lpegmatch(pattern,str) ; return n end
---~ end
-
-local nany = utf8char/""
-
-function lpeg.counter(pattern)
- pattern = Cs((P(pattern)/" " + nany)^0)
- return function(str)
- return #lpegmatch(pattern,str)
- end
-end
-
-if utfgmatch then
-
- function lpeg.count(str,what) -- replaces string.count
- if type(what) == "string" then
- local n = 0
- for _ in utfgmatch(str,what) do
- n = n + 1
- end
- return n
- else -- 4 times slower but still faster than / function
- return #lpegmatch(Cs((P(what)/" " + nany)^0),str)
- end
- end
-
-else
-
- local cache = { }
-
- function lpeg.count(str,what) -- replaces string.count
- if type(what) == "string" then
- local p = cache[what]
- if not p then
- p = Cs((P(what)/" " + nany)^0)
- cache[p] = p
- end
- return #lpegmatch(p,str)
- else -- 4 times slower but still faster than / function
- return #lpegmatch(Cs((P(what)/" " + nany)^0),str)
- end
- end
-
-end
-
-local patterns_escapes = { -- also defines in l-string
- ["%"] = "%%",
- ["."] = "%.",
- ["+"] = "%+", ["-"] = "%-", ["*"] = "%*",
- ["["] = "%[", ["]"] = "%]",
- ["("] = "%)", [")"] = "%)",
- -- ["{"] = "%{", ["}"] = "%}"
- -- ["^"] = "%^", ["$"] = "%$",
-}
-
-local simple_escapes = { -- also defines in l-string
- ["-"] = "%-",
- ["."] = "%.",
- ["?"] = ".",
- ["*"] = ".*",
-}
-
-local p = Cs((S("-.+*%()[]") / patterns_escapes + anything)^0)
-local s = Cs((S("-.+*%()[]") / simple_escapes + anything)^0)
-
-function string.escapedpattern(str,simple)
- return lpegmatch(simple and s or p,str)
-end
-
--- utf extensies
-
-lpeg.UP = lpeg.P
-
-if utfcharacters then
-
- function lpeg.US(str)
- local p = P(false)
- for uc in utfcharacters(str) do
- p = p + P(uc)
- end
- return p
- end
-
-
-elseif utfgmatch then
-
- function lpeg.US(str)
- local p = P(false)
- for uc in utfgmatch(str,".") do
- p = p + P(uc)
- end
- return p
- end
-
-else
-
- function lpeg.US(str)
- local p = P(false)
- local f = function(uc)
- p = p + P(uc)
- end
- lpegmatch((utf8char/f)^0,str)
- return p
- end
-
-end
-
-local range = utf8byte * utf8byte + Cc(false) -- utf8byte is already a capture
-
-local utfchar = unicode and unicode.utf8 and unicode.utf8.char
-
-function lpeg.UR(str,more)
- local first, last
- if type(str) == "number" then
- first = str
- last = more or first
- else
- first, last = lpegmatch(range,str)
- if not last then
- return P(str)
- end
- end
- if first == last then
- return P(str)
- elseif utfchar and (last - first < 8) then -- a somewhat arbitrary criterium
- local p = P(false)
- for i=first,last do
- p = p + P(utfchar(i))
- end
- return p -- nil when invalid range
- else
- local f = function(b)
- return b >= first and b <= last
- end
- -- tricky, these nested captures
- return utf8byte / f -- nil when invalid range
- end
-end
-
--- print(lpeg.match(lpeg.Cs((C(lpeg.UR("αω"))/{ ["χ"] = "OEPS" })^0),"αωχαω"))
-
---~ lpeg.print(lpeg.R("ab","cd","gh"))
---~ lpeg.print(lpeg.P("a","b","c"))
---~ lpeg.print(lpeg.S("a","b","c"))
-
---~ print(lpeg.count("äáàa",lpeg.P("á") + lpeg.P("à")))
---~ print(lpeg.count("äáàa",lpeg.UP("áà")))
---~ print(lpeg.count("äáàa",lpeg.US("àá")))
---~ print(lpeg.count("äáàa",lpeg.UR("aá")))
---~ print(lpeg.count("äáàa",lpeg.UR("àá")))
---~ print(lpeg.count("äáàa",lpeg.UR(0x0000,0xFFFF)))
-
-function lpeg.is_lpeg(p)
- return p and lpegtype(p) == "pattern"
-end
-
-function lpeg.oneof(list,...) -- lpeg.oneof("elseif","else","if","then") -- assume proper order
- if type(list) ~= "table" then
- list = { list, ... }
- end
- -- table.sort(list) -- longest match first
- local p = P(list[1])
- for l=2,#list do
- p = p + P(list[l])
- end
- return p
-end
-
--- For the moment here, but it might move to utilities. Beware, we need to
--- have the longest keyword first, so 'aaa' comes beforte 'aa' which is why we
--- loop back from the end cq. prepend.
-
-local sort, fastcopy, sortedkeys = table.sort, table.fastcopy, table.sortedkeys -- dependency!
-
-function lpeg.append(list,pp,delayed,checked)
- local p = pp
- if #list > 0 then
- local keys = fastcopy(list)
- sort(keys)
- for i=#keys,1,-1 do
- local k = keys[i]
- if p then
- p = P(k) + p
- else
- p = P(k)
- end
- end
- elseif delayed then -- hm, it looks like the lpeg parser resolves anyway
- local keys = sortedkeys(list)
- if p then
- for i=1,#keys,1 do
- local k = keys[i]
- local v = list[k]
- p = P(k)/list + p
- end
- else
- for i=1,#keys do
- local k = keys[i]
- local v = list[k]
- if p then
- p = P(k) + p
- else
- p = P(k)
- end
- end
- if p then
- p = p / list
- end
- end
- elseif checked then
- -- problem: substitution gives a capture
- local keys = sortedkeys(list)
- for i=1,#keys do
- local k = keys[i]
- local v = list[k]
- if p then
- if k == v then
- p = P(k) + p
- else
- p = P(k)/v + p
- end
- else
- if k == v then
- p = P(k)
- else
- p = P(k)/v
- end
- end
- end
- else
- local keys = sortedkeys(list)
- for i=1,#keys do
- local k = keys[i]
- local v = list[k]
- if p then
- p = P(k)/v + p
- else
- p = P(k)/v
- end
- end
- end
- return p
-end
-
--- inspect(lpeg.append({ a = "1", aa = "1", aaa = "1" } ,nil,true))
--- inspect(lpeg.append({ ["degree celsius"] = "1", celsius = "1", degree = "1" } ,nil,true))
-
--- function lpeg.exact_match(words,case_insensitive)
--- local pattern = concat(words)
--- if case_insensitive then
--- local pattern = S(upper(characters)) + S(lower(characters))
--- local list = { }
--- for i=1,#words do
--- list[lower(words[i])] = true
--- end
--- return Cmt(pattern^1, function(_,i,s)
--- return list[lower(s)] and i
--- end)
--- else
--- local pattern = S(concat(words))
--- local list = { }
--- for i=1,#words do
--- list[words[i]] = true
--- end
--- return Cmt(pattern^1, function(_,i,s)
--- return list[s] and i
--- end)
--- end
--- end
-
--- experiment:
-
-local function make(t)
- local p
--- for k, v in next, t do
- for k, v in table.sortedhash(t) do
- if not p then
- if next(v) then
- p = P(k) * make(v)
- else
- p = P(k)
- end
- else
- if next(v) then
- p = p + P(k) * make(v)
- else
- p = p + P(k)
- end
- end
- end
- return p
-end
-
-function lpeg.utfchartabletopattern(list)
- local tree = { }
- for i=1,#list do
- local t = tree
- for c in gmatch(list[i],".") do
- if not t[c] then
- t[c] = { }
- end
- t = t[c]
- end
- end
- return make(tree)
-end
-
--- inspect ( lpeg.utfchartabletopattern {
--- utfchar(0x00A0), -- nbsp
--- utfchar(0x2000), -- enquad
--- utfchar(0x2001), -- emquad
--- utfchar(0x2002), -- enspace
--- utfchar(0x2003), -- emspace
--- utfchar(0x2004), -- threeperemspace
--- utfchar(0x2005), -- fourperemspace
--- utfchar(0x2006), -- sixperemspace
--- utfchar(0x2007), -- figurespace
--- utfchar(0x2008), -- punctuationspace
--- utfchar(0x2009), -- breakablethinspace
--- utfchar(0x200A), -- hairspace
--- utfchar(0x200B), -- zerowidthspace
--- utfchar(0x202F), -- narrownobreakspace
--- utfchar(0x205F), -- math thinspace
--- } )
-
--- handy from within tex:
-
-local lpegmatch = lpeg.match
-
-local replacer = lpeg.replacer("@","%%") -- Watch the escaped % in lpeg!
-
-function string.tformat(fmt,...)
- return format(lpegmatch(replacer,fmt),...)
-end
-
--- strips leading and trailing spaces and collapsed all other spaces
-
-local pattern = Cs(whitespace^0/"" * ((whitespace^1 * P(-1) / "") + (whitespace^1/" ") + P(1))^0)
-
-function string.collapsespaces(str)
- return lpegmatch(pattern,str)
-end
-
-end -- closure
-
-do -- begin closure to overcome local limits and interference
-
if not modules then modules = { } end modules ['l-boolean'] = {
version = 1.001,
comment = "companion to luat-lib.mkiv",
@@ -2205,25 +2190,25 @@ local suffix = period/"" * (1-period-slashes)^1 * -1
local pattern = C((noslashes^0 * slashes^1)^1)
local function pathpart(name,default)
- return lpegmatch(pattern,name) or default or ""
+ return name and lpegmatch(pattern,name) or default or ""
end
local pattern = (noslashes^0 * slashes)^1 * C(noslashes^1) * -1
local function basename(name)
- return lpegmatch(pattern,name) or name
+ return name and lpegmatch(pattern,name) or name
end
local pattern = (noslashes^0 * slashes^1)^0 * Cs((1-suffix)^1) * suffix^0
local function nameonly(name)
- return lpegmatch(pattern,name) or name
+ return name and lpegmatch(pattern,name) or name
end
local pattern = (noslashes^0 * slashes)^0 * (noperiod^1 * period)^1 * C(noperiod^1) * -1
local function suffixonly(name)
- return lpegmatch(pattern,name) or ""
+ return name and lpegmatch(pattern,name) or ""
end
file.pathpart = pathpart
@@ -2254,7 +2239,9 @@ local pattern_c = C(drive * path) * C(base * suffix) -- trick: two extra capture
local pattern_d = path * rest
function file.splitname(str,splitdrive)
- if splitdrive then
+ if not str then
+ -- error
+ elseif splitdrive then
return lpegmatch(pattern_a,str) -- returns drive, path, base, suffix
else
return lpegmatch(pattern_b,str) -- returns path, base, suffix
@@ -2262,34 +2249,36 @@ function file.splitname(str,splitdrive)
end
function file.splitbase(str)
- return lpegmatch(pattern_d,str) -- returns path, base+suffix
+ return str and lpegmatch(pattern_d,str) -- returns path, base+suffix
end
function file.nametotable(str,splitdrive) -- returns table
- local path, drive, subpath, name, base, suffix = lpegmatch(pattern_c,str)
- if splitdrive then
- return {
- path = path,
- drive = drive,
- subpath = subpath,
- name = name,
- base = base,
- suffix = suffix,
- }
- else
- return {
- path = path,
- name = name,
- base = base,
- suffix = suffix,
- }
+ if str then
+ local path, drive, subpath, name, base, suffix = lpegmatch(pattern_c,str)
+ if splitdrive then
+ return {
+ path = path,
+ drive = drive,
+ subpath = subpath,
+ name = name,
+ base = base,
+ suffix = suffix,
+ }
+ else
+ return {
+ path = path,
+ name = name,
+ base = base,
+ suffix = suffix,
+ }
+ end
end
end
local pattern = Cs(((period * noperiod^1 * -1)/"" + 1)^1)
function file.removesuffix(name)
- return lpegmatch(pattern,name)
+ return name and lpegmatch(pattern,name)
end
-- local pattern = (noslashes^0 * slashes)^0 * (noperiod^1 * period)^1 * Cp() * noperiod^1 * -1
@@ -2306,8 +2295,8 @@ end
local suffix = period/"" * (1-period-slashes)^1 * -1
local pattern = Cs((noslashes^0 * slashes^1)^0 * ((1-suffix)^1)) * Cs(suffix)
-function file.addsuffix(filename, suffix, criterium)
- if not suffix or suffix == "" then
+function file.addsuffix(filename,suffix,criterium)
+ if not filename or not suffix or suffix == "" then
return filename
elseif criterium == true then
return filename .. "." .. suffix
@@ -2353,7 +2342,7 @@ local suffix = period * (1-period-slashes)^1 * -1
local pattern = Cs((1-suffix)^0)
function file.replacesuffix(name,suffix)
- if suffix and suffix ~= "" then
+ if name and suffix and suffix ~= "" then
return lpegmatch(pattern,name) .. "." .. suffix
else
return name
@@ -2362,10 +2351,10 @@ end
--
-local reslasher = lpeg.replacer(S("\\"),"/")
+local reslasher = lpeg.replacer(P("\\"),"/")
function file.reslash(str)
- return lpegmatch(reslasher,str)
+ return str and lpegmatch(reslasher,str)
end
-- We should be able to use:
@@ -2381,7 +2370,9 @@ end
-- variant:
function file.is_writable(name)
- if lfs.isdir(name) then
+ if not name then
+ -- error
+ elseif lfs.isdir(name) then
name = name .. "/m_t_x_t_e_s_t.tmp"
local f = io.open(name,"wb")
if f then
@@ -2409,24 +2400,32 @@ end
local readable = P("r") * Cc(true)
function file.is_readable(name)
- local a = attributes(name)
- return a and lpegmatch(readable,a.permissions) or false
+ if name then
+ local a = attributes(name)
+ return a and lpegmatch(readable,a.permissions) or false
+ else
+ return false
+ end
end
file.isreadable = file.is_readable -- depricated
file.iswritable = file.is_writable -- depricated
function file.size(name)
- local a = attributes(name)
- return a and a.size or 0
+ if name then
+ local a = attributes(name)
+ return a and a.size or 0
+ else
+ return 0
+ end
end
function file.splitpath(str,separator) -- string .. reslash is a bonus (we could do a direct split)
- return checkedsplit(lpegmatch(reslasher,str),separator or io.pathseparator)
+ return str and checkedsplit(lpegmatch(reslasher,str),separator or io.pathseparator)
end
function file.joinpath(tab,separator) -- table
- return concat(tab,separator or io.pathseparator) -- can have trailing //
+ return tab and concat(tab,separator or io.pathseparator) -- can have trailing //
end
local stripper = Cs(P(fwslash)^0/"" * reslasher)
@@ -2434,14 +2433,23 @@ local isnetwork = fwslash * fwslash * (1-fwslash) + (1-fwslash-colon)^1 * colon
local isroot = fwslash^1 * -1
local hasroot = fwslash^1
-function file.join(...) -- rather dirty
+local deslasher = lpeg.replacer(S("\\/")^1,"/")
+
+-- If we have a network or prefix then there is a change that we end up with two
+-- // in the middle ... we could prevent this if we (1) expand prefixes: and (2)
+-- split and rebuild as url. Of course we could assume no network paths (which
+-- makes sense) adn assume either mapped drives (windows) or mounts (unix) but
+-- then we still have to deal with urls ... anyhow, multiple // are never a real
+-- problem but just ugly.
+
+function file.join(...)
local lst = { ... }
local one = lst[1]
if lpegmatch(isnetwork,one) then
- local two = lpegmatch(reslasher,concat(lst,"/",2))
+ local two = lpegmatch(deslasher,concat(lst,"/",2))
return one .. "/" .. two
elseif lpegmatch(isroot,one) then
- local two = lpegmatch(reslasher,concat(lst,"/",2))
+ local two = lpegmatch(deslasher,concat(lst,"/",2))
if lpegmatch(hasroot,two) then
return two
else
@@ -2450,7 +2458,7 @@ function file.join(...) -- rather dirty
elseif one == "" then
return lpegmatch(stripper,concat(lst,"/",2))
else
- return lpegmatch(reslasher,concat(lst,"/"))
+ return lpegmatch(deslasher,concat(lst,"/"))
end
end
@@ -2479,6 +2487,9 @@ local splitstarter = (Cs(drivespec * (bwslash/"/" + fwslash)^0) + Cc(false)) * C
local absolute = fwslash
function file.collapsepath(str,anchor)
+ if not str then
+ return
+ end
if anchor and not lpegmatch(anchors,str) then
str = getcurrentdir() .. "/" .. str
end
@@ -2488,7 +2499,6 @@ function file.collapsepath(str,anchor)
return lpegmatch(reslasher,str)
end
local starter, oldelements = lpegmatch(splitstarter,str)
--- inspect(oldelements)
local newelements = { }
local i = #oldelements
while i > 0 do
@@ -2542,11 +2552,13 @@ local whatever = P("-")^0 / ""
local pattern_b = Cs(whatever * (1 - whatever * -1)^1)
function file.robustname(str,strict)
- str = lpegmatch(pattern_a,str) or str
- if strict then
- return lpegmatch(pattern_b,str) or str -- two step is cleaner (less backtracking)
- else
- return str
+ if str then
+ str = lpegmatch(pattern_a,str) or str
+ if strict then
+ return lpegmatch(pattern_b,str) or str -- two step is cleaner (less backtracking)
+ else
+ return str
+ end
end
end
@@ -2554,7 +2566,9 @@ file.readdata = io.loaddata
file.savedata = io.savedata
function file.copy(oldname,newname)
- file.savedata(newname,io.loaddata(oldname))
+ if oldname and newname then
+ file.savedata(newname,io.loaddata(oldname))
+ end
end
-- also rewrite previous
@@ -2575,11 +2589,11 @@ lpeg.patterns.rootbased = rootbased
-- ./name ../name /name c: :// name/name
function file.is_qualified_path(filename)
- return lpegmatch(qualified,filename) ~= nil
+ return filename and lpegmatch(qualified,filename) ~= nil
end
function file.is_rootbased_path(filename)
- return lpegmatch(rootbased,filename) ~= nil
+ return filename and lpegmatch(rootbased,filename) ~= nil
end
-- function test(t) for k, v in next, t do print(v, "=>", file.splitname(v)) end end
@@ -2601,8 +2615,10 @@ end
-- for myself:
function file.strip(name,dir)
- local b, a = match(name,"^(.-)" .. dir .. "(.*)$")
- return a ~= "" and a or name
+ if name then
+ local b, a = match(name,"^(.-)" .. dir .. "(.*)$")
+ return a ~= "" and a or name
+ end
end
-- local debuglist = {
@@ -2954,7 +2970,7 @@ function io.readstring(f,n,m)
f:seek("set",n)
n = m
end
- local str = gsub(f:read(n),"%z","")
+ local str = gsub(f:read(n),"\000","")
return str
end
@@ -3544,11 +3560,8 @@ if not modules then modules = { } end modules ['font-con'] = {
license = "see context related readme files"
}
-
-- some names of table entries will be changed (no _)
-local utf = unicode.utf8
-
local next, tostring, rawget = next, tostring, rawget
local format, match, lower, gsub = string.format, string.match, string.lower, string.gsub
local utfbyte = utf.byte
@@ -5651,8 +5664,6 @@ if not modules then modules = { } end modules ['font-otf'] = {
-- more checking against low level calls of functions
-local utf = unicode.utf8
-
local utfbyte = utf.byte
local format, gmatch, gsub, find, match, lower, strip = string.format, string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip
local type, next, tonumber, tostring = type, next, tonumber, tostring
@@ -6092,32 +6103,32 @@ function otf.load(filename,format,sub,featurefile)
starttiming(data)
report_otf("file size: %s", size)
enhancers.apply(data,filename,fontdata)
+ local packtime = { }
if packdata then
if cleanup > 0 then
collectgarbage("collect")
---~ lua.collectgarbage()
end
+ starttiming(packtime)
enhance("pack",data,filename,nil)
+ stoptiming(packtime)
end
report_otf("saving in cache: %s",filename)
data = containers.write(otf.cache, hash, data)
if cleanup > 1 then
collectgarbage("collect")
---~ lua.collectgarbage()
end
stoptiming(data)
if elapsedtime then -- not in generic
- report_otf("preprocessing and caching took %s seconds",elapsedtime(data))
+ report_otf("preprocessing and caching took %s seconds (packtime: %s)",
+ elapsedtime(data),packdata and elapsedtime(packtime) or 0)
end
fontloader.close(fontdata) -- free memory
if cleanup > 3 then
collectgarbage("collect")
---~ lua.collectgarbage()
end
data = containers.read(otf.cache, hash) -- this frees the old table and load the sparse one
if cleanup > 2 then
collectgarbage("collect")
---~ lua.collectgarbage()
end
else
data = nil
@@ -6695,7 +6706,10 @@ actions["reorganize subtables"] = function(data,filename,raw)
--
local name = gk.name
--
- if features then
+ if not name then
+ -- in fact an error
+ report_otf("skipping weird lookup number %s",k)
+ elseif features then
-- scripts, tag, ismac
local f = { }
for i=1,#features do
@@ -7128,6 +7142,9 @@ actions["merge kern classes"] = function(data,filename,raw)
if type(lookups) ~= "table" then
lookups = { lookups }
end
+ -- if offsets[1] == nil then
+ -- offsets[1] = ""
+ -- end
-- we can check the max in the loop
-- local maxseconds = getn(seconds)
for n, s in next, firsts do
@@ -7148,9 +7165,9 @@ actions["merge kern classes"] = function(data,filename,raw)
if splt then
local extrakerns = { }
local baseoffset = (fk-1) * maxseconds
- -- for sk=2,maxseconds do
- -- local sv = seconds[sk]
- for sk, sv in next, seconds do
+ for sk=2,maxseconds do -- will become 1 based in future luatex
+ local sv = seconds[sk]
+ -- for sk, sv in next, seconds do
local splt = split[sv]
if splt then -- redundant test
local offset = offsets[baseoffset + sk]
@@ -8377,7 +8394,7 @@ if not modules then modules = { } end modules ['node-inj'] = {
-- This is very experimental (this will change when we have luatex > .50 and
-- a few pending thingies are available. Also, Idris needs to make a few more
-- test fonts. Btw, future versions of luatex will have extended glyph properties
--- that can be of help.
+-- that can be of help. Some optimizations can go away when we have faster machines.
local next = next
@@ -8864,7 +8881,7 @@ if not modules then modules = { } end modules ['font-ota'] = {
-- this might become scrp-*.lua
-local type, tostring, match, format, concat = type, tostring, string.match, string.format, table.concat
+local type = type
if not trackers then trackers = { register = function() end } end
@@ -9249,6 +9266,8 @@ if not modules then modules = { } end modules ['font-otn'] = {
-- handle positions (we need example fonts)
-- handle gpos_single (we might want an extra width field in glyph nodes because adding kerns might interfere)
-- mark (to mark) code is still not what it should be (too messy but we need some more extreem husayni tests)
+-- remove some optimizations (when I have a faster machine)
+
--[[ldx--
<p>This module is a bit more split up that I'd like but since we also want to test
@@ -12601,7 +12620,6 @@ if not modules then modules = { } end modules ['font-def'] = {
-- We can overload some of the definers.functions so we don't local them.
-local concat = table.concat
local format, gmatch, match, find, lower, gsub = string.format, string.gmatch, string.match, string.find, string.lower, string.gsub
local tostring, next = tostring, next
local lpegmatch = lpeg.match
diff --git a/tex/generic/context/luatex/luatex-fonts.lua b/tex/generic/context/luatex/luatex-fonts.lua
index dd2c902cd..6b502cd24 100644
--- a/tex/generic/context/luatex/luatex-fonts.lua
+++ b/tex/generic/context/luatex/luatex-fonts.lua
@@ -22,7 +22,7 @@ if not modules then modules = { } end modules ['luatex-fonts'] = {
--
-- Todo: all global namespaces in called modules will get local shortcuts.
-utf = unicode.utf8
+utf = utf or unicode.utf8
if not generic_context then
@@ -132,10 +132,10 @@ else
-- mess up ConTeXt code for the sake of general generality. Around
-- version 1.0 there will be an official api defined.
+ loadmodule('l-lpeg.lua')
loadmodule('l-function.lua')
loadmodule('l-string.lua')
loadmodule('l-table.lua')
- loadmodule('l-lpeg.lua')
loadmodule('l-boolean.lua')
loadmodule('l-math.lua')
loadmodule('l-file.lua')
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-04 17:49:59 +0000