[GROOVY-840] Provide a replaceAll() method on String to transform captured text through a closure

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0-JSR-2
• Assignee: Guillaume Sauthier
• Reporter: Guillaume Sauthier
• Created: 11/May/05 16:31
• Updated: 11/May/05 17:03
• Resolved: 11/May/05 17:03

Description

Transform each captured group into something else:

assert "2 4 6 8" == "1 2 3 4".replaceAll("
p

{Digit}

")

{ it * 2 }

With a new Groovy method on String:

public static String replaceAll(String self, String regex, Closure
closure) {
Matcher matcher = Pattern.compile(regex).matcher(self);
if (matcher.find()) {
matcher.reset();
StringBuffer sb = new StringBuffer();
while (matcher.find())

{ String foundText = self.substring(matcher.start(0), matcher.end(0)); matcher.appendReplacement(sb, String.valueOf(closure.call( foundText ))); }

matcher.appendTail(sb);
return sb.toString();
} else

{ return self; }

}