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-- 
--  This is file `lualibs.lua',
--  generated with the docstrip utility.
-- 
--  The original source files were:
-- 
--  lualibs.dtx  (with options: `lua')
--  This is a generated file.
--  
--  Copyright (C) 2009 by PRAGMA ADE / ConTeXt Development Team
--  
--  See ConTeXt's mreadme.pdf for the license.
--  
--  This work consists of the main source file lualibs.dtx
--  and the derived file lualibs.lua.
--  
do
    local lualibs_module = {
        name          = "lualibs",
        version       = 0.93,
        date          = "2010/05/10",
        description   = "Lua additional functions.",
        author        = "Hans Hagen, PRAGMA-ADE, Hasselt NL & Elie Roux",
        copyright     = "PRAGMA ADE / ConTeXt Development Team",
        license       = "See ConTeXt's mreadme.pdf for the license",
    }
    if luatexbase then
        luatexbase.provides_module(lualibs_module)
    end
end

kpse.set_program_name("luatex")


local function load_lualibs_module(filename)
    local path = kpse.find_file(filename)
    if not path then
        texio.write_nl(string.format("lualibs: error: cannot find file %s", filename))
        return
    end
    texio.write_nl('log', string.format("lualibs: loading file %s", path))
    --if (tex and tex.luatexversion and tex.luatexversion > 44)
    --    or (status and status.luatex_version and status.luatex_version > 44) then
    --    require(filename)
    --else
        dofile(path)
    --end
end

load_lualibs_module("lualibs-string.lua")
load_lualibs_module("lualibs-lpeg.lua")
load_lualibs_module("lualibs-boolean.lua")
load_lualibs_module("lualibs-number.lua")
load_lualibs_module("lualibs-math.lua")
load_lualibs_module("lualibs-table.lua")
load_lualibs_module("lualibs-aux.lua")
load_lualibs_module("lualibs-io.lua")
load_lualibs_module("lualibs-os.lua")
load_lualibs_module("lualibs-file.lua")
load_lualibs_module("lualibs-md5.lua")
load_lualibs_module("lualibs-dir.lua")
load_lualibs_module("lualibs-unicode.lua")
load_lualibs_module("lualibs-utils.lua")
load_lualibs_module("lualibs-dimen.lua")
load_lualibs_module("lualibs-url.lua")
load_lualibs_module("lualibs-set.lua")
load_lualibs_module("lualibs-dimen.lua")


fpath           = file
fpath.split     = file.split_path
lfs.is_readable = file.is_readable
lfs.is_writable = file.is_writable


function string:stripspaces()
    return (self:gsub("^%s*(.-)%s*$", "%1"))
end


lpeg.space    = lpeg.S(" \t\f\v")
lpeg.newline  = lpeg.P("\r\n") + lpeg.P("\r") +lpeg.P("\n")


function table.contains_value(t, val)
    if t then
        for k, v in pairs(t) do
            if v==val then
                return true
            end
        end
    end
    return false
end


function table.contains_key(t, key)
    if t then
        for k, v in pairs(t) do
            if k==key then
                return true
            end
        end
    end
    return false
end


function table.value_position(t, val)
    if t then
        local i=1
        for k, v in pairs(t) do
            if v==val then
                return i
            end
            i=i+1
        end
    end
    return 0
end


function table.key_position(t, key)
    if t then
        local i=1
        for k,v in pairs(t) do
            if k==key then
                return i
            end
            i = i+1
        end
    end
    return -1
end


function table.remove_key(t, k)
    local p = table.key_position(t,k)
    if p ~= -1 then
        table.remove(t, table.key_position(t,k))
    end
end


function fpath.normalize_sep(str)
    return str:gsub("\\", "/")
end


function fpath.localize_sep(str)
    if os.type == 'windows' or os.type == 'msdos' then
        return str:gsub("/", "\\")
    else
        return str:gsub("\\", "/")
    end
end

-- 
--  End of File `lualibs.lua'.