SpringSource/spring-framework — pull request #116 by aclement (2012-08-07 16:59:21+00:00)
Title: Support nested double quotes in expressions

The tokenizer has been modified to allow 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 also added to report when invalid
escaping is encountered (SpEL does not support escaping with
backslash).

Issue: SPR-9620