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Puzzler183

Boost spirit troubles

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I'm in the middle of writing quite a large parser which uses ast_parse and I've run into a problem:
openingBrace = discard_node_d[ch_p('{') | "<%"];
closingBrace = discard_node_d[ch_p('}') | "%>"];
semicolon = discard_node_d[ch_p(';')];


Those rules are generating zero-length nodes in my parse tree, instead of nothing like the documentation says they should... Any ideas? Also, using no_node_d has the same problem.

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I was running into the same problem about a year and a half ago. I guess they never got around to fixing the ast_parse issues.

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Yeah... Turns out that if I put that in the higher rules that use those rules it works... But it's pretty annoying and is cluttering my code a lot.

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