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https://issues.apache.org/jira/browse/GROOVY-7476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14604592#comment-14604592
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ASF GitHub Bot commented on GROOVY-7476:
----------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/incubator-groovy/pull/46
> JsonSlurper sometimes does not parse escaped double quotes on parsing with
> JsonParsingUsingCharacterSource
> ----------------------------------------------------------------------------------------------------------
>
> Key: GROOVY-7476
> URL: https://issues.apache.org/jira/browse/GROOVY-7476
> Project: Groovy
> Issue Type: Bug
> Components: JSON
> Affects Versions: 2.3.11, 2.4.3
> Reporter: Gabriel Van Eyck
> Assignee: Guillaume Laforge
> Priority: Minor
> Labels: contributers-welcome
>
> This came up when parsing a JSON string that had escaped JSON in it.
> E.g. {noformat}{"string": "{\"key\": \"value\"}"}{noformat}
> If the escape character used for ReaderCharacterSource.findNextChar is the
> last character in the buffer, then "foundEscape" is ignored for the first
> character in the recursion call (ReaderCharacterSource:229) and the match
> character is not added to the result.
> {code}
> import groovy.json.internal.ReaderCharacterSource
> def testString = '"double\\"quote"'
> def expectedString = testString.substring(1, testString.length() - 1)
> def escapedQuotePos = testString.indexOf('"', 1)
> int quoteChar = (int)'"'.charAt(0)
> int backslashChar = (int)'\\'.charAt(0)
> ReaderCharacterSource rcs
> char[] result
> rcs = new ReaderCharacterSource(new StringReader(testString), escapedQuotePos
> - 1)
> result = rcs.findNextChar(quoteChar, backslashChar)
> assert(expectedString == new String(result))
> rcs = new ReaderCharacterSource(new StringReader(testString), escapedQuotePos
> + 1)
> result = rcs.findNextChar(quoteChar, backslashChar)
> assert(expectedString == new String(result))
> // This one fails due to the backslash being the last character in the buffer
> rcs = new ReaderCharacterSource(new StringReader(testString), escapedQuotePos)
> result = rcs.findNextChar(quoteChar, backslashChar)
> assert(expectedString == new String(result))
> {code}
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