Grammar to parse the "Hi" statement of this e-mail: --------------------------------------------------- all: cM | cF | 'There'; cM: 'Chitparan'; // Sanskrit word meaning "One who inspires the mind" - Male cF: 'Chitpari'; // Sanskrit word meaning "One who inspires the mind" - Female ---------------------------------------------------
Hi "all",
We are new to ANTLR and we all love this tool! Thanks to Terrence! \__/
We are trying to write a C2C converter.
However, we are stuck with the handling of the "block statement" in the Tree
Grammar part.
Though we have a workaround, we would like to know whether this is an ANTLR bug
(or) a gap in our understanding.
I have written a concise grammar that captures the problem. Kindly see the
attachment.
The problem is very simple:
A compound statement is a 'statement' that starts with '{', has zero or more
variable declarations, followed by zero or more 'statements' and ends with '}'
In the grammar above, 'v' stands for variable declaration, 's' stands for a
statement.
When I run this project , I get the following output.
-------------------------------
Console
-------------------------------
{vs{s}}
Tree = ({ v s ({ s }) })
Tree Grammar Output = {vs{vs} }
--------------------------------
Now look at "Tree Grammar Output". It carries over the "v" from the previous
level.
However if I re-write the grammar as below, I don't have this problem.
b->'{' '}'
| '{' v '}'
| '{' s '}'
| '{' v+ s+ '}'
Kindly advice me on what is the right way to do things!
Are we missing something? (like... RTFM?)
Thanks,
Best Regards,
Sarnath
Sarnath Kannan
Sr. Technical Manager
HCL Technologies Ltd
Shipara Building, Off Hosur Road, GB Palya, Bangalore
+91-80-41584417
www.hcltech.com
www.hcl.in
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driver.java
Description: driver.java
block.g
Description: block.g
blockTree.g
Description: blockTree.g
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