Integrate core C implementation

[project/luci.git] / libs / core / luasrc / util.lua

diff --git a/libs/core/luasrc/util.lua b/libs/core/luasrc/util.lua
index 109ccab..ffab60c 100644 (file)
--- a/libs/core/luasrc/util.lua
+++ b/libs/core/luasrc/util.lua
@@ -31,6 +31,7 @@ local debug = require "debug"
 local ldebug = require "luci.debug"
 local string = require "string"
 local coroutine = require "coroutine"
+local cutil = require "luci.cutil"
 
 local getmetatable, setmetatable = getmetatable, setmetatable
 local rawget, rawset, unpack = rawget, rawset, unpack
@@ -44,6 +45,7 @@ module "luci.util"
 --
 -- Pythonic string formatting extension
 --
+--[[
 getmetatable("").__mod = function(a, b)
        if not b then
                return a
@@ -53,6 +55,7 @@ getmetatable("").__mod = function(a, b)
                return a:format(b)
        end
 end
+]]--
 
 
 --
@@ -60,6 +63,7 @@ end
 --
 
 -- Instantiates a class
+--[[
 local function _instantiate(class, ...)
        local inst = setmetatable({}, {__index = class})
 
@@ -69,6 +73,7 @@ local function _instantiate(class, ...)
 
        return inst
 end
+]]--
 
 --- Create a Class object (Python-style object model).
 -- The class object can be instantiated by calling itself.
@@ -84,12 +89,15 @@ end
 -- @return             A class object
 -- @see                        instanceof
 -- @see                        clone
+--[[
 function class(base)
        return setmetatable({}, {
                __call  = _instantiate,
                __index = base
        })
 end
+]]--
+class = cutil.class
 
 --- Test whether the given object is an instance of the given class.
 -- @param object       Object instance
@@ -261,6 +269,16 @@ function trim(str)
        return (str:gsub("^%s*(.-)%s*$", "%1"))
 end
 
+--- Count the occurences of given substring in given string.
+-- @param str          String to search in
+-- @param pattern      String containing pattern to find
+-- @return                     Number of found occurences
+function cmatch(str, pat)
+       local count = 0
+       for _ in str:gmatch(pat) do count = count + 1 end
+       return count
+end
+
 --- Parse certain units from the given string and return the canonical integer
 -- value or 0 if the unit is unknown. Upper- or lower case is irrelevant.
 -- Recognized units are:
@@ -320,6 +338,16 @@ function parse_units(ustr)
        return val
 end
 
+-- also register functions above in the central string class for convenience
+string.escape      = escape
+string.pcdata      = pcdata
+string.striptags   = striptags
+string.split       = split
+string.trim        = trim
+string.cmatch      = cmatch
+string.parse_units = parse_units
+
+
 --- Appends numerically indexed tables or single objects to a given table.
 -- @param src  Target table
 -- @param ...  Objects to insert