On Sat, Apr 17, 2010 at 12:51 PM, EricB
I have 2 additional questions : 1) The for each statement produces the following AST. The nodes marked with XXX at end of lines are produced due to the "*boost::spirit::space_p " part of the for-each rule. Is there a way (a directive or something else in the grammar) to skip this content so that the marked nodes (XXX) would not appeared in the AST ? (i have tried discar_node_d, and other directives but nothing works) <parsenode rule="for_eachID"> <parsenode> XXX <value> </value> XXX </parsenode> XXX <parsenode rule="queryID"> <parsenode> ... </parsenode> </parsenode> <parsenode> XXX <value> </value> XXX </parsenode> XXX <parsenode> XXX <value>\n</value> XXX </parsenode> XXX <parsenode> XXX <value> </value> XXX </parsenode> XXX <parsenode rule="subscriptID"> <parsenode> ... </parsenode> </parsenode> </parsenode>
It is extremely simple in a more recent Spirit version, the directive
skip(space)[] in my code above handled that fine. You *really* need
to update, the version you are using is far more difficult to use,
slower, and far less capable.
On Sat, Apr 17, 2010 at 12:51 PM, EricB
2)The query rule handles inner balanced parentheses but it produces the following AST: =>input is b/c()/e
I Would like the AST produced from the inner () to be flatten. I would like the node marked with XXX not to be generated. Is there a directive for this ? <parsenode> <value>b</value> </parsenode> <parsenode> <value>/</value> </parsenode> <parsenode> <value>c</value> </parsenode> <parsenode> XXX <parsenode> <value>(</value> </parsenode> <parsenode> <value>)</value> </parsenode> </parsenode> XXX <parsenode> <value>/</value> </parsenode> <parsenode> <value>e</value> </parsenode>
That is what the raw[] directives in my above code is for, you really need to use the newer functionality rather then the old syntax that you are currently using.