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/**
* The MIT License (MIT)
*
* Copyright (c) 2015 Camil Staps
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
implementation module StringUtils
import StdEnv
strlen :: String -> Int
strlen s = length s`
where
s` :: [Char]
s` = fromString s
pad_right :: String String Int -> String
pad_right c s l
| strlen s >= l = s
| strlen c == 0 = s
| otherwise = foldl (+++) s (repeatn ((l - strlen s) / strlen c) c)
pad_left :: String String Int -> String
pad_left c s l
| strlen s >= l = s
| strlen c == 0 = s
| otherwise = foldr (+++) s (repeatn ((l - strlen s) / strlen c) c)
join :: String [String] -> String
join glue [] = ""
join glue [s] = s
join glue [s:ss] = s +++ glue +++ join glue ss
repl :: a b c -> String | toString a & toString b & toString c
repl needle replment haystack
| strlen needle` > strlen haystack` = haystack`
| needle` == haystack` % (0,strlen needle` - 1) = replment` +++ repl needle` replment` (haystack` % (strlen needle`, strlen haystack` - 1))
| otherwise = (haystack` % (0,0)) +++ repl needle` replment` (haystack` % (1, strlen haystack` - 1))
where
needle` = toString needle
replment` = toString replment
haystack` = toString haystack
|
