[GROOVY-8026] Matcher indexed via IntRange with startIdx..-1 does not return "intermediate" range matches

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.4.7
• Fix Version/s: 2.4.9
• Component/s: groovy-jdk
• Environment: Zulu OpenJDK 1.8.0_102-b14; Windows 7 Pro
• Assignee: Paul King
• Reporter: Brian Ray
• Created: 19/Dec/16 19:44
• Updated: 08/Mar/17 08:17
• Resolved: 30/Jan/17 14:09

Description

Maybe this isn't a bug, and I realize that a Matcher is not exactly a List or any other Collection, but the inconsistency is a little mysterious. Here's a simple Groovysh script with several comparative indexes:

txt = 'abcd 1 efgh 2 ijkl 3 mnop'
m = txt =~ /\d/
println m.collect { it }    // as expected: [1, 2, 3]
println m[ 0..2 ]           // as expected: [1, 2, 3]
println m[ 0..m.size()-1 ]  // as expected: [1, 2, 3]
println m[ 0..<m.size() ]   // as expected: [1, 2, 3]
println m[ 0..-1 ]          // bug?: [1, 3]

//for comparison
a = [ 1, 2, 3 ]
println a.collect { it }    // [1, 2, 3]
println a[ 0..2 ]           // [1, 2, 3]
println a[ 0..a.size()-1 ]  // [1, 2, 3]
println a[ 0..<a.size() ]   // [1, 2, 3]
println a[ 0..-1 ]          // [1, 2, 3]

Issue Links

• links to: GitHub Pull Request #483