[antlr-interest] Freeing memory as you go using C target
Peterson, Joe
joe.peterson at intel.com
Thu Jun 4 13:27:23 PDT 2009
Hello all,
We're using the C target to generate a parser for a very large file with very large independent sections. Unfortunately, it's consuming 1GB+ of memory when parsing the file. Is there any way to free up the memory consumed as we go without pre-parsing the file to chunk it up? Everything I've found in my searches seem to point to splitting up the file before processing it. After a particular token, can we free the memory used by that token? For example if we had:
contents : header body footer;
header : BLAH BLAH BLAH;
footer : BLA BLA BLA;
body : section+;
section
@after {
// can we free everything here even though we're still in body?
}
: LBRACE morestuff RBRACE;
Thanks,
-JEEP
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