Groovy JsonSlurper JSON value with escaped quotation marks - json

Question

I'm developing a small tool written in Groovy which parses JSON strings in emails. Some of these JSON strings have JSON values that contain escaped quotes.
For example:
{
"hello": "world with \"quotation marks\""
}
To parse these strings, I am using Groovy's JsonSlurper. The following code demonstrates my problem:
import groovy.json.JsonException
import groovy.json.JsonSlurper
try {
print new JsonSlurper().parseText('''
{
"hello": "world with \"quotation marks\""
}
''')
} catch (JsonException | IllegalArgumentException e) {
print e
}
See https://groovyconsole.appspot.com/script/6193189027315712 for a live demo.
When executing this code, the following exception is thrown:
groovy.json.JsonException: expecting '}' or ',' but got current char 'q' with an int value of 113
The current character read is 'q' with an int value of 113
expecting '}' or ',' but got current char 'q' with an int value of 113
line number 3
index number 35
"hello": "world with "quotation marks""
............................^
Thus, the escaping of the quotation mark is ignored by JsonSlurper. Unfortunately, I have no control over the input, i.e. the JSON strings. Therefore, I have to find a way to parse such a JSON string into a map or any other appropriate data structure.

Answer 1

The string has not been escaped properly in the json. The text data should be like:
'''
{
"hello": "world with \\\"quotation marks\\\""
}
'''
The string that you are getting indicates that the mail body contains the json in format:
{
"hello": "world with "quotation marks""
}
while it should be like
{
"hello": "world with \"quotation marks\""
}
If earlier is the case then you can't parse the invalid json as there is no way for code to identify about the escaped data.