Credence.Pattern.NoPipedRegexReplace (credence v0.4.4)

Detects Regex.replace used as a pipe target and replaces it with String.replace, which accepts the string as its first argument.

Regex.replace/3 expects (regex, string, replacement) — regex first. When used in a pipeline, the pipe injects the left-hand value as the first argument, putting the string where the regex should be:

input |> Regex.replace(~r/[^a-z0-9]/, "")
# becomes: Regex.replace(input, ~r/[^a-z0-9]/, "")
#                        ^^^^^ string in regex position — crash

String.replace/3 takes (string, pattern, replacement) and accepts regex patterns, so it is a drop-in replacement that works in pipelines:

input |> String.replace(~r/[^a-z0-9]/, "")