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Author SHA1 Message Date
Gian Merlino 1f2afccdf8 Expressions: Add ExprMacros. (#4365) 
* Expressions: Add ExprMacros, which have the same syntax as functions, but
can convert themselves to any kind of Expr at parse-time.

ExprMacroTable is an extension point for adding new ExprMacros. Anything
that might need to parse expressions needs an ExprMacroTable, which can
be injected through Guice.

* Address code review comments.
 2017-06-08 09:32:10 -04:00
Navis Ryu e10def32f2 Support string type in math expression (#2836) 
* Support string type in math expression

addressed comments

addressed comments

Addressed comments

* Updated math function document

* Addressed comments
 2016-11-02 21:10:48 -06:00
Navis Ryu 45a3a26ef7 Add more math functions (#2822) 
* Add more math functions

* added function list
 2016-05-03 10:55:13 -07:00
Himanshu Gupta 308211cc18 math expression language with parser/lexer generated using ANTLR 2016-04-08 11:40:29 -05:00
Himanshu Gupta 36ccfbd20e math expression language with hand written parser/lexer 2016-04-08 11:40:29 -05:00