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Added map and reduce functions

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This commit is contained in:
Jonathan Turner 2009-06-22 11:51:56 +00:00
parent 80ed8eb505
commit 68da0eb404
1 changed files with 5 additions and 2 deletions
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7
chaiscript/chaiscript_engine.hpp
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@ -187,7 +187,8 @@ namespace chaiscript
return_statement = Ign(Str("return")) >> ~boolean;
break_statement = Wrap(Ign(Str("break")));
paren_block = (Ign(Id(TokenType::Parens_Open)) >> equation >> Ign(Id(TokenType::Parens_Close)));
lambda_def = (Ign(Str("function")) >> ~(Ign(Id(TokenType::Parens_Open)) >> ~params >> Ign(Id(TokenType::Parens_Close))) >> block) | (Ign(Id(TokenType::Parens_Open)) >> ~params >> Ign(Id(TokenType::Parens_Close)) >> Ign(Str(":")) >> block);
lambda_def = (Ign(Str("function")) >> ~(Ign(Id(TokenType::Parens_Open)) >> ~params >> Ign(Id(TokenType::Parens_Close))) >> block) |
(Ign(Id(TokenType::Parens_Open)) >> ~params >> Ign(Id(TokenType::Parens_Close)) >> Ign(Str(":")) >> block);
return rule;
}
@ -205,7 +206,9 @@ namespace chaiscript
new dispatchkit::Dynamic_Proxy_Function(boost::bind(&ChaiScript_System<Eval_Engine>::eval, boost::ref(*this), _1), 1)), "eval");
evaluate_string("def print(x) { print_string(x.to_string()) }; "
"def for_each(container, func) { var range = range(container); while (!range.empty()) { func(range.front()); range.popFront();} }");
"def for_each(container, func) { var range = range(container); while (!range.empty()) { func(range.front()); range.popFront();} }; "
"def map(container, func) { var retval = Vector(); var range = range(container); while (!range.empty()) { retval.push_back(func(range.front())); range.popFront();}; return retval;}; "
"def reduce(container, func, initial) { var retval = initial; var range = range(container); while (!range.empty()) { retval = (func(range.front(), retval)); range.popFront();}; return retval;}");
return ss;
}