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Support nested double quotes in SpEL expressions

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The Spring Expression Language currently supports nested single quotes
within expressions but not nested double quotes.

The SpEL tokenizer has been modified to support nested double quotes in
the same way it supports single quotes. A sequence of two double quotes
will now be replaced by one when evaluated.

Extra error handling has also been added to report when invalid escaping
is encountered, since SpEL does not support escaping with backslash.

Issue: SPR-9620
This commit is contained in:
Andy Clement
2012-08-07 09:55:20 -07:00
committed by Sam Brannen
parent 0d963a690b
commit 75944cc88f
5 changed files with 32 additions and 4 deletions
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src/dist/changelog.txt vendored
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@@ -10,6 +10,7 @@ Changes in version 3.2 M2 (2012-08-xx)
* now inferring return type of generic factory methods (SPR-9493)
* SpEL now supports method invocations on integers (SPR-9612)
* SpEL now supports symbolic boolean operators for OR and AND (SPR-9614)
* SpEL now supports nested double quotes in expressions (SPR-9620)
* introduced support for case-insensitive null literals in SpEL expressions (SPR-9613)
* now using BufferedInputStream in SimpleMetaDataReader to double performance (SPR-9528)
* introduced "repeatCount" property in Quartz SimpleTriggerFactoryBean (SPR-9521)