[#GROOVY-2225] replaceAll cannot replace backslash - jira.codehaus.org

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Type: Bug
Status: Closed
Priority: Major
Resolution: Won't Fix
Affects Version/s: None
Fix Version/s: 1.1-rc-2
Component/s: groovy-jdk
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None
Environment:
redhat enterprise workstation 4

Number of attachments :
0

Description

when calling the replaceAll function on java.lang.String with a backslash :

println 'xxxx'.replaceAll('x',{'\\'})

I get the following exception:

Caught: java.lang.StringIndexOutOfBoundsException: String index out of range: 1

any other character does not cause the same exception

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Paul King added a comment - 20/Oct/07 5:32 AM

This is just how the underlying Java library works. You need 4 backslashes when using Java. Try:

println 'xyxyx'.replaceAll('x',{'\\\\'}) // =>   \y\y\

Groovy provides the slashy string syntax to save you from having to use 4 backslahes but for cases involving only backslahes, the slashy string syntax might add more confusion because of its special escaping rules for escaping slashes.

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Paul King added a comment - 20/Oct/07 5:32 AM This is just how the underlying Java library works. You need 4 backslashes when using Java. Try:

println 'xyxyx'.replaceAll('x',{'\\\\'}) // =>   \y\y\

Groovy provides the slashy string syntax to save you from having to use 4 backslahes but for cases involving only backslahes, the slashy string syntax might add more confusion because of its special escaping rules for escaping slashes.

groovy

replaceAll cannot replace backslash

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