diff options
| -rw-r--r-- | lib/impure/re.nim | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/impure/re.nim b/lib/impure/re.nim index a200f27b6..809180774 100644 --- a/lib/impure/re.nim +++ b/lib/impure/re.nim @@ -78,7 +78,11 @@ proc re*(s: string, flags = {reStudy}): Regex = ## ## Note that Nim's ## extended raw string literals support the syntax ``re"[abc]"`` as - ## a short form for ``re(r"[abc]")``. + ## a short form for ``re(r"[abc]")``. Also note that since this + ## compiles the regular expression, which is expensive, you should + ## avoid putting it directly in the arguments of the functions like + ## the examples show below if you plan to use it a lot of times, as + ## this will hurt performance immensely. (e.g. outside a loop, ...) when defined(gcDestructors): result = Regex() else: |