diff options
Diffstat (limited to 'luaotfload-filesystem-merged.lua')
| -rw-r--r-- | luaotfload-filesystem-merged.lua | 1369 |
1 files changed, 1369 insertions, 0 deletions
diff --git a/luaotfload-filesystem-merged.lua b/luaotfload-filesystem-merged.lua new file mode 100644 index 0000000..62e0447 --- /dev/null +++ b/luaotfload-filesystem-merged.lua @@ -0,0 +1,1369 @@ +-- merged file : luaotfload-filesystem-merged.lua +-- parent file : luaotfload-filesystem.lua +-- merge date : Tue May 14 12:12:07 2013 + +do -- begin closure to overcome local limits and interference + +if not modules then modules={} end modules ['l-lua']={ + 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" +} +local major,minor=string.match(_VERSION,"^[^%d]+(%d+)%.(%d+).*$") +_MAJORVERSION=tonumber(major) or 5 +_MINORVERSION=tonumber(minor) or 1 +_LUAVERSION=_MAJORVERSION+_MINORVERSION/10 +if not lpeg then + lpeg=require("lpeg") +end +if loadstring then + local loadnormal=load + function load(first,...) + if type(first)=="string" then + return loadstring(first,...) + else + return loadnormal(first,...) + end + end +else + loadstring=load +end +if not ipairs then + local function iterate(a,i) + i=i+1 + local v=a[i] + if v~=nil then + return i,v + end + end + function ipairs(a) + return iterate,a,0 + end +end +if not pairs then + function pairs(t) + return next,t + end +end +if not table.unpack then + table.unpack=_G.unpack +elseif not unpack then + _G.unpack=table.unpack +end +if not package.loaders then + package.loaders=package.searchers +end +local print,select,tostring=print,select,tostring +local inspectors={} +function setinspector(inspector) + inspectors[#inspectors+1]=inspector +end +function inspect(...) + for s=1,select("#",...) do + local value=select(s,...) + local done=false + for i=1,#inspectors do + done=inspectors[i](value) + if done then + break + end + end + if not done then + print(tostring(value)) + end + end +end +local dummy=function() end +function optionalrequire(...) + local ok,result=xpcall(require,dummy,...) + if ok then + return result + end +end + +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" +} +lpeg=require("lpeg") +local type,next,tostring=type,next,tostring +local byte,char,gmatch,format=string.byte,string.char,string.gmatch,string.format +local floor=math.floor +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,lpegprint=lpeg.type,lpeg.match,lpeg.print +setinspector(function(v) if lpegtype(v) then lpegprint(v) return true end end) +lpeg.patterns=lpeg.patterns or {} +local patterns=lpeg.patterns +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") +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") +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) +local utf8character=P(1)*R("\128\191")^0 +patterns.utf8=utf8char +patterns.utf8char=utf8char +patterns.utf8character=utf8character +patterns.validutf8=validutf8char +patterns.validutf8char=validutf8char +local eol=S("\n\r") +local spacer=S(" \t\f\v") +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) +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/"") +patterns.undouble=(dquote/"")*patterns.nodquote*(dquote/"") +patterns.unquoted=patterns.undouble+patterns.unsingle +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 +patterns.beginline=#(1-newline) +patterns.longtostring=Cs(whitespace^0/""*nonwhitespace^0*((whitespace^0/" "*(patterns.quoted+nonwhitespace)^1)^0)) +local function anywhere(pattern) + 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 +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 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 +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 +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 +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 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) + return (P(str)+P(true))*Cs(anything^0) +end +function lpeg.endstripper(str) + return Cs((1-P(str)*endofstring)^0) +end +function lpeg.replacer(one,two,makefunction,isutf) + 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((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) + 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 +local splitters_f,splitters_s={},{} +function lpeg.firstofsplit(separator) + 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) + 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 +local nany=utf8char/"" +function lpeg.counter(pattern) + pattern=Cs((P(pattern)/" "+nany)^0) + return function(str) + return #lpegmatch(pattern,str) + end +end +utf=utf or (unicode and unicode.utf8) or {} +local utfcharacters=utf and utf.characters or string.utfcharacters +local utfgmatch=utf and utf.gmatch +local utfchar=utf and utf.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) +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 + local p=P(false) + for i=first,last do + p=p+P(utfchar(i)) + end + return p + else + local f=function(b) + return b>=first and b<=last + end + return utf8byte/f + end +end +function lpeg.is_lpeg(p) + return p and lpegtype(p)=="pattern" +end +function lpeg.oneof(list,...) + if type(list)~="table" then + list={ list,... } + end + local p=P(list[1]) + for l=2,#list do + p=p+P(list[l]) + end + return p +end +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 + 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 + 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 +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) + 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 +patterns.containseol=lpeg.finder(eol) +local function nextstep(n,step,result) + local m=n%step + local d=floor(n/step) + if d>0 then + local v=V(tostring(step)) + local s=result.start + for i=1,d do + if s then + s=v*s + else + s=v + end + end + result.start=s + end + if step>1 and result.start then + local v=V(tostring(step/2)) + result[tostring(step)]=v*v + end + if step>0 then + return nextstep(m,step/2,result) + else + return result + end +end +function lpeg.times(pattern,n) + return P(nextstep(n,2^16,{ "start",["1"]=pattern })) +end +local digit=R("09") +local period=P(".") +local zero=P("0") +local trailingzeros=zero^0*-digit +local case_1=period*trailingzeros/"" +local case_2=period*(digit-trailingzeros)^1*(trailingzeros/"") +local number=digit^1*(case_1+case_2) +local stripper=Cs((number+1)^0) +lpeg.patterns.stripzeros=stripper + +end -- closure + +do -- begin closure to overcome local limits and interference + +if not modules then modules={} end modules ['l-file']={ + 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" +} +file=file or {} +local file=file +if not lfs then + lfs=optionalrequire("lfs") +end +if not lfs then + lfs={ + getcurrentdir=function() + return "." + end, + attributes=function() + return nil + end, + isfile=function(name) + local f=io.open(name,'rb') + if f then + f:close() + return true + end + end, + isdir=function(name) + print("you need to load lfs") + return false + end + } +elseif not lfs.isfile then + local attributes=lfs.attributes + function lfs.isdir(name) + return attributes(name,"mode")=="directory" + end + function lfs.isfile(name) + return attributes(name,"mode")=="file" + end +end +local insert,concat=table.insert,table.concat +local match,find=string.match,string.find +local lpegmatch=lpeg.match +local getcurrentdir,attributes=lfs.currentdir,lfs.attributes +local checkedsplit=string.checkedsplit +local P,R,S,C,Cs,Cp,Cc,Ct=lpeg.P,lpeg.R,lpeg.S,lpeg.C,lpeg.Cs,lpeg.Cp,lpeg.Cc,lpeg.Ct +local colon=P(":") +local period=P(".") +local periods=P("..") +local fwslash=P("/") +local bwslash=P("\\") +local slashes=S("\\/") +local noperiod=1-period +local noslashes=1-slashes +local name=noperiod^1 +local suffix=period/""*(1-period-slashes)^1*-1 +local pattern=C((1-(slashes^1*noslashes^1*-1))^1)*P(1) +local function pathpart(name,default) + 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 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 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 name and lpegmatch(pattern,name) or "" +end +file.pathpart=pathpart +file.basename=basename +file.nameonly=nameonly +file.suffixonly=suffixonly +file.suffix=suffixonly +file.dirname=pathpart +file.extname=suffixonly +local drive=C(R("az","AZ"))*colon +local path=C((noslashes^0*slashes)^0) +local suffix=period*C(P(1-period)^0*P(-1)) +local base=C((1-suffix)^0) +local rest=C(P(1)^0) +drive=drive+Cc("") +path=path+Cc("") +base=base+Cc("") +suffix=suffix+Cc("") +local pattern_a=drive*path*base*suffix +local pattern_b=path*base*suffix +local pattern_c=C(drive*path)*C(base*suffix) +local pattern_d=path*rest +function file.splitname(str,splitdrive) + if not str then + elseif splitdrive then + return lpegmatch(pattern_a,str) + else + return lpegmatch(pattern_b,str) + end +end +function file.splitbase(str) + return str and lpegmatch(pattern_d,str) +end +function file.nametotable(str,splitdrive) + 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*(1-period-slashes)^1*-1)/""+1)^1) +function file.removesuffix(name) + return name and lpegmatch(pattern,name) +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 filename or not suffix or suffix=="" then + return filename + elseif criterium==true then + return filename.."."..suffix + elseif not criterium then + local n,s=lpegmatch(pattern,filename) + if not s or s=="" then + return filename.."."..suffix + else + return filename + end + else + local n,s=lpegmatch(pattern,filename) + if s and s~="" then + local t=type(criterium) + if t=="table" then + for i=1,#criterium do + if s==criterium[i] then + return filename + end + end + elseif t=="string" then + if s==criterium then + return filename + end + end + end + return (n or filename).."."..suffix + end +end +local suffix=period*(1-period-slashes)^1*-1 +local pattern=Cs((1-suffix)^0) +function file.replacesuffix(name,suffix) + if name and suffix and suffix~="" then + return lpegmatch(pattern,name).."."..suffix + else + return name + end +end +local reslasher=lpeg.replacer(P("\\"),"/") +function file.reslash(str) + return str and lpegmatch(reslasher,str) +end +function file.is_writable(name) + if not name then + elseif lfs.isdir(name) then + name=name.."/m_t_x_t_e_s_t.tmp" + local f=io.open(name,"wb") + if f then + f:close() + os.remove(name) + return true + end + elseif lfs.isfile(name) then + local f=io.open(name,"ab") + if f then + f:close() + return true + end + else + local f=io.open(name,"ab") + if f then + f:close() + os.remove(name) + return true + end + end + return false +end +local readable=P("r")*Cc(true) +function file.is_readable(name) + 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 +file.iswritable=file.is_writable +function file.size(name) + if name then + local a=attributes(name) + return a and a.size or 0 + else + return 0 + end +end +function file.splitpath(str,separator) + return str and checkedsplit(lpegmatch(reslasher,str),separator or io.pathseparator) +end +function file.joinpath(tab,separator) + return tab and concat(tab,separator or io.pathseparator) +end +local stripper=Cs(P(fwslash)^0/""*reslasher) +local isnetwork=fwslash*fwslash*(1-fwslash)+(1-fwslash-colon)^1*colon +local isroot=fwslash^1*-1 +local hasroot=fwslash^1 +local deslasher=lpeg.replacer(S("\\/")^1,"/") +function file.join(...) + local lst={... } + local one=lst[1] + if lpegmatch(isnetwork,one) then + local two=lpegmatch(deslasher,concat(lst,"/",2)) + return one.."/"..two + elseif lpegmatch(isroot,one) then + local two=lpegmatch(deslasher,concat(lst,"/",2)) + if lpegmatch(hasroot,two) then + return two + else + return "/"..two + end + elseif one=="" then + return lpegmatch(stripper,concat(lst,"/",2)) + else + return lpegmatch(deslasher,concat(lst,"/")) + end +end +local drivespec=R("az","AZ")^1*colon +local anchors=fwslash+drivespec +local untouched=periods+(1-period)^1*P(-1) +local splitstarter=(Cs(drivespec*(bwslash/"/"+fwslash)^0)+Cc(false))*Ct(lpeg.splitat(S("/\\")^1)) +local absolute=fwslash +function file.collapsepath(str,anchor) + if not str then + return + end + if anchor==true and not lpegmatch(anchors,str) then + str=getcurrentdir().."/"..str + end + if str=="" or str=="." then + return "." + elseif lpegmatch(untouched,str) then + return lpegmatch(reslasher,str) + end + local starter,oldelements=lpegmatch(splitstarter,str) + local newelements={} + local i=#oldelements + while i>0 do + local element=oldelements[i] + if element=='.' then + elseif element=='..' then + local n=i-1 + while n>0 do + local element=oldelements[n] + if element~='..' and element~='.' then + oldelements[n]='.' + break + else + n=n-1 + end + end + if n<1 then + insert(newelements,1,'..') + end + elseif element~="" then + insert(newelements,1,element) + end + i=i-1 + end + if #newelements==0 then + return starter or "." + elseif starter then + return starter..concat(newelements,'/') + elseif lpegmatch(absolute,str) then + return "/"..concat(newelements,'/') + else + newelements=concat(newelements,'/') + if anchor=="." and find(str,"^%./") then + return "./"..newelements + else + return newelements + end + end +end +local validchars=R("az","09","AZ","--","..") +local pattern_a=lpeg.replacer(1-validchars) +local pattern_a=Cs((validchars+P(1)/"-")^1) +local whatever=P("-")^0/"" +local pattern_b=Cs(whatever*(1-whatever*-1)^1) +function file.robustname(str,strict) + if str then + str=lpegmatch(pattern_a,str) or str + if strict then + return lpegmatch(pattern_b,str) or str + else + return str + end + end +end +file.readdata=io.loaddata +file.savedata=io.savedata +function file.copy(oldname,newname) + if oldname and newname then + local data=io.loaddata(oldname) + if data and data~="" then + file.savedata(newname,data) + end + end +end +local letter=R("az","AZ")+S("_-+") +local separator=P("://") +local qualified=period^0*fwslash+letter*colon+letter^1*separator+letter^1*fwslash +local rootbased=fwslash+letter*colon +lpeg.patterns.qualified=qualified +lpeg.patterns.rootbased=rootbased +function file.is_qualified_path(filename) + return filename and lpegmatch(qualified,filename)~=nil +end +function file.is_rootbased_path(filename) + return filename and lpegmatch(rootbased,filename)~=nil +end +function file.strip(name,dir) + if name then + local b,a=match(name,"^(.-)"..dir.."(.*)$") + return a~="" and a or name + end +end + +end -- closure + +do -- begin closure to overcome local limits and interference + +if not modules then modules={} end modules ['l-dir']={ + 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" +} +local type,select=type,select +local find,gmatch,match,gsub=string.find,string.gmatch,string.match,string.gsub +local concat,insert,remove,unpack=table.concat,table.insert,table.remove,table.unpack +local lpegmatch=lpeg.match +local P,S,R,C,Cc,Cs,Ct,Cv,V=lpeg.P,lpeg.S,lpeg.R,lpeg.C,lpeg.Cc,lpeg.Cs,lpeg.Ct,lpeg.Cv,lpeg.V +dir=dir or {} +local dir=dir +local lfs=lfs +local attributes=lfs.attributes +local walkdir=lfs.dir +local isdir=lfs.isdir +local isfile=lfs.isfile +local currentdir=lfs.currentdir +local chdir=lfs.chdir +if not isdir then + function isdir(name) + local a=attributes(name) + return a and a.mode=="directory" + end + lfs.isdir=isdir +end +if not isfile then + function isfile(name) + local a=attributes(name) + return a and a.mode=="file" + end + lfs.isfile=isfile +end +function dir.current() + return (gsub(currentdir(),"\\","/")) +end +local lfsisdir=isdir +local function isdir(path) + path=gsub(path,"[/\\]+$","") + return lfsisdir(path) +end +lfs.isdir=isdir +local function globpattern(path,patt,recurse,action) + if path=="/" then + path=path.."." + elseif not find(path,"/$") then + path=path..'/' + end + if isdir(path) then + for name in walkdir(path) do + local full=path..name + local mode=attributes(full,'mode') + if mode=='file' then + if find(full,patt) then + action(full) + end + elseif recurse and (mode=="directory") and (name~='.') and (name~="..") then + globpattern(full,patt,recurse,action) + end + end + end +end +dir.globpattern=globpattern +local function collectpattern(path,patt,recurse,result) + local ok,scanner + result=result or {} + if path=="/" then + ok,scanner,first=xpcall(function() return walkdir(path..".") end,function() end) + else + ok,scanner,first=xpcall(function() return walkdir(path) end,function() end) + end + if ok and type(scanner)=="function" then + if not find(path,"/$") then path=path..'/' end + for name in scanner,first do + local full=path..name + local attr=attributes(full) + local mode=attr.mode + if mode=='file' then + if find(full,patt) then + result[name]=attr + end + elseif recurse and (mode=="directory") and (name~='.') and (name~="..") then + attr.list=collectpattern(full,patt,recurse) + result[name]=attr + end + end + end + return result +end +dir.collectpattern=collectpattern +local pattern=Ct { + [1]=(C(P(".")+P("/")^1)+C(R("az","AZ")*P(":")*P("/")^0)+Cc("./"))*V(2)*V(3), + [2]=C(((1-S("*?/"))^0*P("/"))^0), + [3]=C(P(1)^0) +} +local filter=Cs (( + P("**")/".*"+P("*")/"[^/]*"+P("?")/"[^/]"+P(".")/"%%."+P("+")/"%%+"+P("-")/"%%-"+P(1) +)^0 ) +local function glob(str,t) + if type(t)=="function" then + if type(str)=="table" then + for s=1,#str do + glob(str[s],t) + end + elseif isfile(str) then + t(str) + else + local split=lpegmatch(pattern,str) + if split then + local root,path,base=split[1],split[2],split[3] + local recurse=find(base,"%*%*") + local start=root..path + local result=lpegmatch(filter,start..base) + globpattern(start,result,recurse,t) + end + end + else + if type(str)=="table" then + local t=t or {} + for s=1,#str do + glob(str[s],t) + end + return t + elseif isfile(str) then + if t then + t[#t+1]=str + return t + else + return { str } + end + else + local split=lpegmatch(pattern,str) + if split then + local t=t or {} + local action=action or function(name) t[#t+1]=name end + local root,path,base=split[1],split[2],split[3] + local recurse=find(base,"%*%*") + local start=root..path + local result=lpegmatch(filter,start..base) + globpattern(start,result,recurse,action) + return t + else + return {} + end + end + end +end +dir.glob=glob +local function globfiles(path,recurse,func,files) + if type(func)=="string" then + local s=func + func=function(name) return find(name,s) end + end + files=files or {} + local noffiles=#files + for name in walkdir(path) do + if find(name,"^%.") then + else + local mode=attributes(name,'mode') + if mode=="directory" then + if recurse then + globfiles(path.."/"..name,recurse,func,files) + end + elseif mode=="file" then + if not func or func(name) then + noffiles=noffiles+1 + files[noffiles]=path.."/"..name + end + end + end + end + return files +end +dir.globfiles=globfiles +function dir.ls(pattern) + return concat(glob(pattern),"\n") +end +local make_indeed=true +local onwindows=os.type=="windows" or find(os.getenv("PATH"),";") +if onwindows then + function dir.mkdirs(...) + local str,pth="","" + for i=1,select("#",...) do + local s=select(i,...) + if s=="" then + elseif str=="" then + str=s + else + str=str.."/"..s + end + end + local first,middle,last + local drive=false + first,middle,last=match(str,"^(//)(//*)(.*)$") + if first then + else + first,last=match(str,"^(//)/*(.-)$") + if first then + middle,last=match(str,"([^/]+)/+(.-)$") + if middle then + pth="//"..middle + else + pth="//"..last + last="" + end + else + first,middle,last=match(str,"^([a-zA-Z]:)(/*)(.-)$") + if first then + pth,drive=first..middle,true + else + middle,last=match(str,"^(/*)(.-)$") + if not middle then + last=str + end + end + end + end + for s in gmatch(last,"[^/]+") do + if pth=="" then + pth=s + elseif drive then + pth,drive=pth..s,false + else + pth=pth.."/"..s + end + if make_indeed and not isdir(pth) then + lfs.mkdir(pth) + end + end + return pth,(isdir(pth)==true) + end +else + function dir.mkdirs(...) + local str,pth="","" + for i=1,select("#",...) do + local s=select(i,...) + if s and s~="" then + if str~="" then + str=str.."/"..s + else + str=s + end + end + end + str=gsub(str,"/+","/") + if find(str,"^/") then + pth="/" + for s in gmatch(str,"[^/]+") do + local first=(pth=="/") + if first then + pth=pth..s + else + pth=pth.."/"..s + end + if make_indeed and not first and not isdir(pth) then + lfs.mkdir(pth) + end + end + else + pth="." + for s in gmatch(str,"[^/]+") do + pth=pth.."/"..s + if make_indeed and not isdir(pth) then + lfs.mkdir(pth) + end + end + end + return pth,(isdir(pth)==true) + end +end +dir.makedirs=dir.mkdirs +if onwindows then + function dir.expandname(str) + local first,nothing,last=match(str,"^(//)(//*)(.*)$") + if first then + first=dir.current().."/" + end + if not first then + first,last=match(str,"^(//)/*(.*)$") + end + if not first then + first,last=match(str,"^([a-zA-Z]:)(.*)$") + if first and not find(last,"^/") then + local d=currentdir() + if chdir(first) then + first=dir.current() + end + chdir(d) + end + end + if not first then + first,last=dir.current(),str + end + last=gsub(last,"//","/") + last=gsub(last,"/%./","/") + last=gsub(last,"^/*","") + first=gsub(first,"/*$","") + if last=="" or last=="." then + return first + else + return first.."/"..last + end + end +else + function dir.expandname(str) + if not find(str,"^/") then + str=currentdir().."/"..str + end + str=gsub(str,"//","/") + str=gsub(str,"/%./","/") + str=gsub(str,"(.)/%.$","%1") + return str + end +end +file.expandname=dir.expandname +local stack={} +function dir.push(newdir) + insert(stack,currentdir()) + if newdir and newdir~="" then + chdir(newdir) + end +end +function dir.pop() + local d=remove(stack) + if d then + chdir(d) + end + return d +end +local function found(...) + for i=1,select("#",...) do + local path=select(i,...) + local kind=type(path) + if kind=="string" then + if isdir(path) then + return path + end + elseif kind=="table" then + local path=found(unpack(path)) + if path then + return path + end + end + end +end +dir.found=found + +end -- closure |