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101 lines
2.5 KiB
101 lines
2.5 KiB
#!/usr/bin/env lua5.1
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# Lua utils
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-- kamailio log for a table
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function log_table(table, msg, level)
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if not level then
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level = "debug"
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end
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if msg then
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sr.log(level, msg)
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end
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if not table then
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-- empty table
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return
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end
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for i,v in pairs(table) do
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if type(i) == "number" then
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iformat = "%d"
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elseif type(i) == "string" then
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iformat = "%s"
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end
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if type(v) == "string" then
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sr.log(level, string.format("i:" .. iformat .. " v: %s", i, v))
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elseif type(v) == "number" then
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sr.log(level, string.format("i:" .. iformat .. " v: %d", i, v))
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elseif type(v) == "table" then
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log_table(v,string.format("i:" .. iformat .. " v:", i),level)
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end
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end
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end
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-- copy a table
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function table_deepcopy(object)
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local lookup_table = {}
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local function _copy(object)
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if type(object) ~= "table" then
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return object
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elseif lookup_table[object] then
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return lookup_table[object]
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end
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local new_table = {}
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lookup_table[object] = new_table
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for index, value in pairs(object) do
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new_table[_copy(index)] = _copy(value)
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end
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return setmetatable(new_table, getmetatable(object))
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end
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return _copy(object)
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end
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-- from table to string
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-- t = {'a','b'}
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-- implode(",",t,"'")
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-- "'a','b'"
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-- implode("#",t)
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-- "a#b"
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function implode(delimiter, list, quoter)
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local len = #list
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if len == 0 then
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return nil
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end
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if not quoter then
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quoter = ""
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end
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local string = quoter .. list[1] .. quoter
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for i = 2, len do
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string = string .. delimiter .. quoter .. list[i] .. quoter
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end
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return string
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end
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-- from string to table
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function explode(delimiter, text)
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local list = {}; local pos = 1
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if string.find("", delimiter, 1) then
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-- We'll look at error handling later!
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error("delimiter matches empty string!")
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end
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while 1 do
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local first, last = string.find(text, delimiter, pos)
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print (first, last)
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if first then
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table.insert(list, string.sub(text, pos, first-1))
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pos = last+1
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else
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table.insert(list, string.sub(text, pos))
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break
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end
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end
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return list
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end
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function compare_desc_len(a,b)
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return string.len(a) > string.len(b)
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end
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function findpattern(text, pattern, start)
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return string.sub(text, string.find(text, pattern, start))
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end
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#EOF |