[Pyparsing] setResultsName: request for clarification

[stefaan.himpe <ste...@gm...>]

Hello,

I have difficulties in understanding how to use setResultsName 
correctly. The problem is illustrated in the code below:
In the first version, r.BODY is empty. In the second version, it 
contains what I expected it to contain. But I am not sure what the 
difference is between these two versions?

Thanks for any insights.

Best regards,
Stefaan.

---

import pyparsing as p

s = """
SECTION
{
   // {
   if (1) { dosomething; } else { if (0) then { a; } else { b } }
   printf ( "{" ); /* {
   {
   {
   */
   { nog; iets; }
}
"""

# VERSION 1
section_body = p.Combine(p.nestedExpr("{","}", 
ignoreExpr=p.quotedString|p.cppStyleComment|p.cStyleComment))
section_body.setParseAction(p.keepOriginalText)
section_body.setResultsName("BODY")
grammar = p.CaselessKeyword("SECTION").suppress() + section_body
r = grammar.parseString(s)
print r.BODY


# VERSION 2
section_body = p.Combine(p.nestedExpr("{","}", 
ignoreExpr=p.quotedString|p.cppStyleComment|p.cStyleComment))
section_body.setParseAction(p.keepOriginalText)
grammar = p.CaselessKeyword("SECTION").suppress() + \ 
section_body.setResultsName("BODY")
r = grammar.parseString(s)
print r.BODY