Globally replace text in several files: Difference between revisions
Globally replace text in several files (view source)
Revision as of 08:27, 3 July 2021
, 2 years ago→{{header|Haskell}}: Simplifed type of recursion in replace, preferred guards to if then else, applied Hlint
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(→{{header|Haskell}}: Simplifed type of recursion in replace, preferred guards to if then else, applied Hlint) |
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</lang>
This other version is more effective because it processes the string more lazily, replacing the text as it consumes the input string (the previous version was stricter because of "matches" traversing the whole list; that would force the whole string into memory, which could cause the system to run out of memory with large text files).
<lang Haskell>replace
replace a b
where
go [] = []
then b ++ replace a b (drop (length a) xx)▼
| otherwise = x : go xs</lang>
'''Example:'''
<pre>
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