I meant that i am finding it difficult to define the grammar for the parser .

Answering your queries :

> Why is a non-switch parameter called "param1' in one place and "value" in another.
- this was done to ease the effort i would have to put in the final command generation after the hash is built. All non-switch parameters within mandatory braces are put in the "mandatory hash" with keys as "param1,param2.....".
the switch parameters within mandatory braces are placed in a separate hash with the switch and corresponding parameter.

> Why would a property of mandatory parameters be called "param1"?
- "param1" is not a property of mandatory parameters ,but more of a key name to identify them.

> What if an alternation contains something other than just a <...> or just a <...>? For example, could you have { update | insert }? Your output format doesn't support that.
- For alternations , i place all the alternates in an anonymous array in the hash. A crude way of handling them but i''ve just about begun to build a prototype.

In reply to Re^4: Parsing command string into a hash by perlpal
in thread Parsing command string into a hash by perlpal

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