Question

I’m working on parsing a text file, running through each line, and I’m having trouble figuring out the Regex. Part of this parsing involves changing occurances such as:

É to é

I’ve tried the following regular expression, but it doesn’t return anything:

/^(?!&)(É)/

Any suggestions?

Answer 1

So you want to match É only if it’s not at the start of the line?

Use

/(?<=.)&Eacute;/

(assuming Ruby 1.9 because 1.8 doesn’t support lookbehind)

Rationale: . matches any character except newline. So if the lookbehind assertion matches, we’re not at the start of the line.