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lib.strings.trimWith: Refactor scoping

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I wanted to use this instead of [my ownimplementation](https://github.com/nix-community/pyproject.nix/blob/65d4134/lib/util.nix#L18-L23) and got a small performance regression.
This commit is contained in:
adisbladis 2024-09-03 01:11:13 +12:00
parent 4b6c89a670
commit 8a20781579
1 changed files with 4 additions and 3 deletions
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7
lib/strings.nix
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@ -408,7 +408,6 @@ rec {
start ? false,
end ? false,
}:
s:
let
# Define our own whitespace character class instead of using
# `[:space:]`, which is not well-defined.
@ -425,12 +424,14 @@ rec {
"(.*[^${chars}])[${chars}]*"
else
"(.*)";
in
s:
let
# If the string was empty or entirely whitespace,
# then the regex may not match and `res` will be `null`.
res = match regex s;
in
optionalString (res != null) (head res);
optionalString (res != null) (head res);
/**
Construct a Unix-style, colon-separated search path consisting of