In Ruby, I wrote a simple regex to find the first {
:
txt.gsub! /^.*{/, '{'
Whenever I run this, everything past that point for my purposes works fine, however there is a mild error that reads along the lines of WARNING: Dangling metacharacter detected.
What specifically are dangling metacharacters, and how would I change my regex to be as explicit and efficient as possible?
{
has special meaning in regular expression.Above matches PATTERN repeated m~n times.
If you want avoid that warning (to match literally match
{
) escape it.UPDATE
BTW,
/^.*{/
does not catch the first{
because.*
is greedy match; It consume as much as possible.