On 01/22/2011 05:27 PM, Andrei Alexandrescu wrote:
OK, so we have replace(haystack, needle, nail) which replaces _all_
occurrences of needle in haystack with nail. How would you call a
function that replaces only the _first_ occurrence of needle with nail?
Must be a distinct function, not a runtime parameter to the existing
function. This is because the function that replaces only one occurrence
only requires nail to be an input range.
Apart voting for replaceFirst:
Python doc:
string.replace(str, old, new[, maxreplace])ΒΆ
Return a copy of string str with all occurrences of substring old
replaced by new. If the optional argument maxreplace is given, the first
maxreplace occurrences are replaced.
In years and years of string processing, I have used maxreplace once, I
guess, and the value was not 1. Does something like replace first belong
to stdlib? Even more if it needs be so special. When needed, isnt'it
easy to write in two lines using find's result? Also, what is the
correct behaviour when not found (what is the one true way)?
Denis
_________________
vita es estrany
spir.wikidot.com
