/usr/share/texlive/texmf-dist/tex/luatex/lualibs/lualibs-dir.lua is in texlive-luatex 2012.20120611-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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"
}
-- dir.expand_name will be merged with cleanpath and collapsepath
local type = type
local find, gmatch, match, gsub = string.find, string.gmatch, string.match, string.gsub
local lpegmatch = lpeg.match
dir = dir or { }
-- handy
function dir.current()
return (gsub(lfs.currentdir(),"\\","/"))
end
-- optimizing for no string.find (*) does not save time
local attributes = lfs.attributes
local walkdir = lfs.dir
local function glob_pattern(path,patt,recurse,action)
local ok, scanner, dirobj
if path == "/" then
ok, scanner, dirobj = xpcall(function() return walkdir(path..".") end, function() end) -- kepler safe
else
ok, scanner, dirobj = xpcall(function() return walkdir(path) end, function() end) -- kepler safe
end
if ok and type(scanner) == "function" then
if not find(path,"/$") then path = path .. '/' end
for name in scanner, dirobj do
local full = path .. name
local mode = attributes(full,'mode')
if mode == 'file' then
if find(full,patt) then
action(full)
end
elseif recurse and (mode == "directory") and (name ~= '.') and (name ~= "..") then
glob_pattern(full,patt,recurse,action)
end
end
end
end
dir.glob_pattern = glob_pattern
local function collect_pattern(path,patt,recurse,result)
local ok, scanner, dirobj
result = result or { }
if path == "/" then
ok, scanner, dirobj = xpcall(function() return walkdir(path..".") end, function() end) -- kepler safe
else
ok, scanner, dirobj = xpcall(function() return walkdir(path) end, function() end) -- kepler safe
end
if ok and type(scanner) == "function" then
if not find(path,"/$") then path = path .. '/' end
for name in scanner, dirobj 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 = collect_pattern(full,patt,recurse)
result[name] = attr
end
end
end
return result
end
dir.collect_pattern = collect_pattern
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
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 lfs.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)
glob_pattern(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 lfs.isfile(str) then
local t = t or { }
t[#t+1] = str
return t
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)
glob_pattern(start,result,recurse,action)
return t
else
return { }
end
end
end
end
dir.glob = glob
--~ list = dir.glob("**/*.tif")
--~ list = dir.glob("/**/*.tif")
--~ list = dir.glob("./**/*.tif")
--~ list = dir.glob("oeps/**/*.tif")
--~ list = dir.glob("/oeps/**/*.tif")
local function globfiles(path,recurse,func,files) -- func == pattern or function
if type(func) == "string" then
local s = func -- alas, we need this indirect way
func = function(name) return find(name,s) end
end
files = files or { }
for name in walkdir(path) do
if find(name,"^%.") then
--- skip
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 func then
if func(name) then
files[#files+1] = path .. "/" .. name
end
else
files[#files+1] = path .. "/" .. name
end
end
end
end
return files
end
dir.globfiles = globfiles
-- t = dir.glob("c:/data/develop/context/sources/**/????-*.tex")
-- t = dir.glob("c:/data/develop/tex/texmf/**/*.tex")
-- t = dir.glob("c:/data/develop/context/texmf/**/*.tex")
-- t = dir.glob("f:/minimal/tex/**/*")
-- print(dir.ls("f:/minimal/tex/**/*"))
-- print(dir.ls("*.tex"))
function dir.ls(pattern)
return table.concat(glob(pattern),"\n")
end
--~ mkdirs("temp")
--~ mkdirs("a/b/c")
--~ mkdirs(".","/a/b/c")
--~ mkdirs("a","b","c")
local make_indeed = true -- false
if string.find(os.getenv("PATH"),";") then -- os.type == "windows"
function dir.mkdirs(...)
local str, pth, t = "", "", { ... }
for i=1,#t do
local s = t[i]
if s ~= "" then
if str ~= "" then
str = str .. "/" .. s
else
str = s
end
end
end
local first, middle, last
local drive = false
first, middle, last = match(str,"^(//)(//*)(.*)$")
if first then
-- empty network path == local path
else
first, last = match(str,"^(//)/*(.-)$")
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,"^(/*)(.-)$")
if not middle then
last = str
end
end
end
end
for s in gmatch(last,"[^/]+") do
if pth == "" then
pth = s
elseif drive then
pth, drive = pth .. s, false
else
pth = pth .. "/" .. s
end
if make_indeed and not lfs.isdir(pth) then
lfs.mkdir(pth)
end
end
return pth, (lfs.isdir(pth) == true)
end
--~ print(dir.mkdirs("","","a","c"))
--~ print(dir.mkdirs("a"))
--~ print(dir.mkdirs("a:"))
--~ print(dir.mkdirs("a:/b/c"))
--~ print(dir.mkdirs("a:b/c"))
--~ print(dir.mkdirs("a:/bbb/c"))
--~ print(dir.mkdirs("/a/b/c"))
--~ print(dir.mkdirs("/aaa/b/c"))
--~ print(dir.mkdirs("//a/b/c"))
--~ print(dir.mkdirs("///a/b/c"))
--~ print(dir.mkdirs("a/bbb//ccc/"))
function dir.expand_name(str) -- will be merged with cleanpath and collapsepath
local first, nothing, last = match(str,"^(//)(//*)(.*)$")
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 = lfs.currentdir()
if lfs.chdir(first) then
first = dir.current()
end
lfs.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 == "" then
return first
else
return first .. "/" .. last
end
end
else
function dir.mkdirs(...)
local str, pth, t = "", "", { ... }
for i=1,#t do
local s = t[i]
if 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 lfs.isdir(pth) then
lfs.mkdir(pth)
end
end
else
pth = "."
for s in gmatch(str,"[^/]+") do
pth = pth .. "/" .. s
if make_indeed and not lfs.isdir(pth) then
lfs.mkdir(pth)
end
end
end
return pth, (lfs.isdir(pth) == true)
end
--~ print(dir.mkdirs("","","a","c"))
--~ print(dir.mkdirs("a"))
--~ print(dir.mkdirs("/a/b/c"))
--~ print(dir.mkdirs("/aaa/b/c"))
--~ print(dir.mkdirs("//a/b/c"))
--~ print(dir.mkdirs("///a/b/c"))
--~ print(dir.mkdirs("a/bbb//ccc/"))
function dir.expand_name(str) -- will be merged with cleanpath and collapsepath
if not find(str,"^/") then
str = lfs.currentdir() .. "/" .. str
end
str = gsub(str,"//","/")
str = gsub(str,"/%./","/")
return str
end
end
dir.makedirs = dir.mkdirs
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