StdCharList¶
This module can be imported directly or as a part of the StdEnv module.
If CLEAN ever has a proper IO and formatting functionalities, I think this module would be just that.
Visit StdCharList on Cloogle for source code of this module.
Text alignment functions¶
These functions pad the start and end of a character list until it has a specified length.
cjustify¶
Signature
// CLEAN
cjustify :: Int [Char] -> [Char]
cjustify wLength cList => ...
Behavior
Pads the start and end of character list cList with spaces until its width is equal to wLength.
The padding at the end of the string is prioritized.
This function does nothing if the length of the list is already equal to or greater than the desired length.
Usage
// CLEAN
cjustify 5 ['abc'] // [' ', 'a', 'b', 'c', ' ']
cjustify 5 ['ab'] // [' ', 'a', 'b', ' ', ' ']
cjustify 3 ['ab'] // ['a', 'b', ' ']
cjustify 3 ['a'] // [' ', 'a', ' ']
cjustify 1 ['ab'] // ['a', 'b']
ljustify¶
Signature
// CLEAN
ljustify :: Int [Char] -> [Char]
ljustify wLength cList => ...
Behavior
Pads the end of character list cList with spaces until its width is equal to wLength.
This function does nothing if the length of the list is already equal to or greater than the desired length.
Usage
// CLEAN
ljustify 5 ['abc'] // ['a', 'b', 'c', ' ', ' ']
ljustify 5 ['ab'] // ['a', 'b', ' ', ' ', ' ']
ljustify 3 ['ab'] // ['a', 'b', ' ']
ljustify 3 ['a'] // ['a', ' ', ' ']
ljustify 1 ['ab'] // ['a', 'b']
rjustify¶
Signature
// CLEAN
rjustify :: Int [Char] -> [Char]
rjustify wLength cList => ...
Behavior
Pads the start of character list cList with spaces until the width is equal to wLength.
This function does nothing if the length of the list is already equal to or greater than the desired length.
Usage
// CLEAN
rjustify 5 ['abc'] // [' ', ' ', 'a', 'b', 'c']
rjustify 5 ['ab'] // [' ', ' ', 'a', 'b']
rjustify 3 ['ab'] // [' ', 'a', 'b']
rjustify 3 ['a'] // [' ', ' ', 'a']
rjustify 1 ['ab'] // ['a', 'b']
Line manipulation functions¶
These functions transform and interact with the newline characters in a character list by either removing or adding them.
flatlines¶
Signature
// CLEAN
flatlines :: [[Char]] -> [Char]
flatlines cMat => ...
Behavior
Flattens two-dimensional character list cMat and join them with newline characters.
Usage
// CLEAN
flatlines [['a'], ['b']] // ['a', '\n', 'b', '\n']
flatlines [['a']] // ['a', '\n']
flatlines [] // []
mklines¶
Signature
// CLEAN
mklines :: [Char] -> [[Char]]
mklines cList => ...
Behavior
Splits a character list cList at newline characters and transform it into two-dimensional character list.
The newline characters are removed from the result.
Usage
// CLEAN
mklines ['a', '\n', 'b', '\n'] // [['a'], ['b']]
mklines ['a', '\n'] // [['a']]
mklines [] // []