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authorKhaled Hosny <khaledhosny@eglug.org>2010-01-11 15:15:52 +0200
committerKhaled Hosny <khaledhosny@eglug.org>2010-01-11 16:03:13 +0200
commitf1c3cb9dc199c28cdd2c813eb1ea5c21345125d0 (patch)
tree808986ca292251a39a2fc9fa3a7e01b9e761577e /luaextra-dir.lua
parente5ad063f805ecbf5fd093712bc60ef5aec25a6fd (diff)
downloadlualibs-f1c3cb9dc199c28cdd2c813eb1ea5c21345125d0.tar.gz
Import ConTeX's lua libraries
Replace most of luaextra.lua with a bunch of require() calls and add renamed (but unmodified) ConTeX lua libraries to the repository. ConTeXt's l-xml.lua module has been excluded because it depends on a bunch of other ConTeXt specific modules. Also l-pdfview.lua has been dropped, I don't know what to use it for.
Diffstat (limited to 'luaextra-dir.lua')
-rw-r--r--luaextra-dir.lua337
1 files changed, 337 insertions, 0 deletions
diff --git a/luaextra-dir.lua b/luaextra-dir.lua
new file mode 100644
index 0000000..3760db2
--- /dev/null
+++ b/luaextra-dir.lua
@@ -0,0 +1,337 @@
+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 = type
+local find, gmatch, match, gsub = string.find, string.gmatch, string.match, string.gsub
+local lpegmatch = lpeg.match
+
+dir = dir or { }
+
+-- 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
+ if path == "/" then
+ ok, scanner = xpcall(function() return walkdir(path..".") end, function() end) -- kepler safe
+ else
+ ok, scanner = xpcall(function() return walkdir(path) end, function() end) -- kepler safe
+ end
+ if ok and type(scanner) == "function" then
+ if not find(path,"/$") then path = path .. '/' end
+ for name in scanner do
+ local full = path .. name
+ local mode = attributes(full,'mode')
+ if mode == 'file' then
+ if find(full,patt) then
+ action(full)
+ end
+ elseif recurse and (mode == "directory") and (name ~= '.') and (name ~= "..") then
+ glob_pattern(full,patt,recurse,action)
+ end
+ end
+ end
+end
+
+dir.glob_pattern = glob_pattern
+
+local function collect_pattern(path,patt,recurse,result)
+ local ok, scanner
+ result = result or { }
+ if path == "/" then
+ ok, scanner = xpcall(function() return walkdir(path..".") end, function() end) -- kepler safe
+ else
+ ok, scanner = xpcall(function() return walkdir(path) end, function() end) -- kepler safe
+ end
+ if ok and type(scanner) == "function" then
+ if not find(path,"/$") then path = path .. '/' end
+ for name in scanner 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(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
+
+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
+
+ function dir.mkdirs(...)
+ local str, pth = "", ""
+ for _, s in ipairs({...}) do
+ 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,"^(/*)(.-)$")
+ if not middle then
+ last = str
+ end
+ end
+ end
+ end
+ for s in gmatch(last,"[^/]+") do
+ if pth == "" then
+ pth = s
+ elseif drive then
+ pth, drive = pth .. s, false
+ else
+ pth = pth .. "/" .. s
+ end
+ if make_indeed and not lfs.isdir(pth) then
+ lfs.mkdir(pth)
+ end
+ end
+ return pth, (lfs.isdir(pth) == true)
+ end
+
+--~ print(dir.mkdirs("","","a","c"))
+--~ print(dir.mkdirs("a"))
+--~ print(dir.mkdirs("a:"))
+--~ print(dir.mkdirs("a:/b/c"))
+--~ print(dir.mkdirs("a:b/c"))
+--~ print(dir.mkdirs("a:/bbb/c"))
+--~ print(dir.mkdirs("/a/b/c"))
+--~ print(dir.mkdirs("/aaa/b/c"))
+--~ print(dir.mkdirs("//a/b/c"))
+--~ print(dir.mkdirs("///a/b/c"))
+--~ print(dir.mkdirs("a/bbb//ccc/"))
+
+ function dir.expand_name(str)
+ local first, nothing, last = match(str,"^(//)(//*)(.*)$")
+ if first then
+ first = lfs.currentdir() .. "/"
+ first = gsub(first,"\\","/")
+ 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 = lfs.currentdir()
+ first = gsub(first,"\\","/")
+ end
+ lfs.chdir(d)
+ end
+ end
+ if not first then
+ first, last = lfs.currentdir(), str
+ first = gsub(first,"\\","/")
+ 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 = "", ""
+ for _, s in ipairs({...}) do
+ 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)
+ if not find(str,"^/") then
+ str = lfs.currentdir() .. "/" .. str
+ end
+ str = gsub(str,"//","/")
+ str = gsub(str,"/%./","/")
+ return str
+ end
+
+end
+
+dir.makedirs = dir.mkdirs