[xsl] Escaping Curly Braces in Regex

["rowan@xxxxxxxxxxxxxxxxxxxxx" <rowan@xxxxxxxxxxxxxxxxxxxxx>]

Hi,

If in an XSLT 2 regular expression I want to match a literal curly brace,
what do I have to put in the regex?

For example, if my input string is "  {some text}"

And I want to match any string that is enclosed in curly braces, with
optional whitespace before and after, I've tried:

matches(., '^\s*{.+}\s*$')
matches(., '^\s*{{.+}}\s*$')
matches(., '^\s*\{.+\}\s*$')
matches(., '^\s*\{{.+\}}\s*$')

There are inside a predicate inside a select attribute in my XSL file. All
are rejected as syntax errors.

What's the right way of doing this?

Thanks - Rowan



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