[antlr-interest] Fixed Length Tokens
brb0522
brb0522 at yahoo.com
Wed May 28 10:27:47 PDT 2003
Any suggestions on how to handle a file of fixed length fields.
Something like:
IDfirstname lastname address city <EOL>
I'm trying to get that into a tree structure
ID
|--firstname
|--lastname
|--address
etc...
I found an example out here that will parse CHAR by CHAR for some
number of characters, but it seems that each character becomes a leaf.
test[int N]
{int n=N;}
:
{ n > 1 }? CHAR test[n-1]
|
{ n == 0 }?
;
CHAR is defined as 'a'..'z' | 'A'..'Z' | '0'..'9'
Any help or examples on how to handle fixed length fields will be
greatly appreciated.
Thanks
-Brian
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