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Posted to dev@velocity.apache.org by "Christopher Schultz (Jira)" <de...@velocity.apache.org> on 2022/11/18 19:12:00 UTC
[jira] [Commented] (VELTOOLS-184) EscapeTool: add a json method, or a javascript method with a second parameter
[ https://issues.apache.org/jira/browse/VELTOOLS-184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17635999#comment-17635999 ]
Christopher Schultz commented on VELTOOLS-184:
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I'm sorry, but whatever JSON parser you are working with is patently broken.
Quoting [RFC 4627, section 2.5|[http://example.com|https://www.ietf.org/rfc/rfc4627.html#section-2.5]]:
{quote}Any character may be escaped.
{quote}
So, breaking when ' is (perhaps unexpectedly) escaped means that {_}the library is broken{_}.
> EscapeTool: add a json method, or a javascript method with a second parameter
> -----------------------------------------------------------------------------
>
> Key: VELTOOLS-184
> URL: https://issues.apache.org/jira/browse/VELTOOLS-184
> Project: Velocity Tools
> Issue Type: Improvement
> Components: GenericTools
> Affects Versions: 2.x
> Environment: any
> Reporter: Maurice Perry
> Priority: Minor
> Labels: EscapeTool, escape, javascript, json
>
> The string returned by EscapeTool.javascript() method is not alway compliant with the JSON syntax. For instance, when the input string contains an apostrophe ', a backslash is inserted before it because there is no way for the method to know if the string is enclosed with single or double quotes. This is not compliant with the JSON syntax, and some JSON parsers will reject the string.
> There may be other differences between javascript and JSON strings, but this is the one I encountered, and I had to use a workaround.
> This issue can be solved either with a JSON method, or with a second javascript method with a second parameter indicating the type of quote used.
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