[jira] [Created] (GROOVY-7476) JsonSlurper does not parse escaped double quotes (sometimes) on parsing with JsonParsingUsingCharacterSource

["Gabriel Van Eyck (JIRA)" <ji...@apache.org>]

Gabriel Van Eyck created GROOVY-7476:
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             Summary: JsonSlurper does not parse escaped double quotes (sometimes) 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: 2.4.3, 2.3.11
            Reporter: Gabriel Van Eyck
            Assignee: Guillaume Laforge
            Priority: Minor


This came up when parsing a JSON string that had escaped JSON in it.
E.g. {"string": "{\"key\": \"value\"}"}

If the escape character used for ReaderCharacterSource.findNextChar is the last character in the buffer, then "foundEscape" status is not passed onto 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)'"'.toCharArray()[0]
int backslashChar = (int)'\\'.toCharArray()[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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