generic-library/ChaiScript
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Add some convenience functions for parsing

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This commit is contained in:
Jason Turner
2015-08-11 19:20:18 -06:00
parent 04e2256c92
commit 5aa0bfcea4
3 changed files with 43 additions and 16 deletions
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34
include/chaiscript/language/chaiscript_engine.hpp
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@@ -284,14 +284,7 @@ namespace chaiscript
const Boxed_Value internal_eval_ast(const AST_NodePtr &t_ast)
{
try {
return t_ast->eval(m_engine);
} catch (const exception::eval_error &t_ee) {
throw Boxed_Value(t_ee);
}
}
/// Evaluates the given file and looks in the 'use' paths
const Boxed_Value internal_eval_file(const std::string &t_filename) {
@@ -396,7 +389,8 @@ namespace chaiscript
m_engine.add(fun([this](const std::string &t_file){ return use(t_file); }), "use");
m_engine.add(fun([this](const std::string &t_file){ return internal_eval_file(t_file); }), "eval_file");
m_engine.add(fun([this](const std::string &t_str){ return internal_eval(t_str); }), "eval");
m_engine.add(fun([this](const AST_NodePtr &t_ast){ return internal_eval_ast(t_ast); }), "eval");
m_engine.add(fun([this](const AST_NodePtr &t_ast){ return eval(t_ast); }), "eval");
m_engine.add(fun(&parse), "parse");
m_engine.add(fun(&ChaiScript::version_major), "version_major");
m_engine.add(fun(&ChaiScript::version_minor), "version_minor");
@@ -517,6 +511,28 @@ namespace chaiscript
build_eval_system(ModulePtr());
}
const Boxed_Value eval(const AST_NodePtr &t_ast)
{
try {
return t_ast->eval(m_engine);
} catch (const exception::eval_error &t_ee) {
throw Boxed_Value(t_ee);
}
}
static AST_NodePtr parse(const std::string &t_input)
{
parser::ChaiScript_Parser parser;
if (parser.parse(t_input, "PARSE")) {
//parser.show_match_stack();
return parser.optimized_ast();
} else {
throw chaiscript::exception::eval_error("Unknown error while parsing");
}
}
static int version_major()
{
return chaiscript::version_major;