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Nasal-Interpreter
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update

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Valk Richard Li 2020-01-23 17:41:55 +08:00 committed by GitHub
parent b7ce093aa5
commit 025108a692
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2 changed files with 9 additions and 8 deletions
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4
version2.0/nasal_enum.h
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@ -60,7 +60,7 @@ enum parse_token_type
__call_function,__call_vector,__call_hash,
__normal_statement_block,
__definition,
__function,__ifelse
__function,__conditional
};
void print_parse_token(int type)
@ -143,7 +143,7 @@ void print_parse_token(int type)
case __normal_statement_block:context="block"; break;
case __definition: context="definition"; break;
case __function: context="function"; break;
case __ifelse: context="if-else"; break;
case __conditional: context="conditional"; break;
default: context="undefined_token";break;
}

13
version2.0/nasal_parse.h
View File

@ -1507,14 +1507,14 @@ abstract_syntax_tree nasal_parse::loop_expr()
abstract_syntax_tree nasal_parse::conditional_expr()
{
abstract_syntax_tree choose_main_node;
abstract_syntax_tree conditional_main_node;
abstract_syntax_tree if_node;
abstract_syntax_tree elsif_node;
abstract_syntax_tree else_node;
choose_main_node.set_node_type(__ifelse);
conditional_main_node.set_node_type(__conditional);
// get 'if'
this->get_token();
choose_main_node.set_node_line(this_token.line);
conditional_main_node.set_node_line(this_token.line);
if_node.set_node_type(__if);
if_node.set_node_line(this_token.line);
this->get_token();
@ -1531,6 +1531,7 @@ abstract_syntax_tree nasal_parse::conditional_expr()
print_parse_error(lack_right_curve,this_token.line);
}
if_node.add_children(block_generate());
conditional_main_node.add_children(if_node);
// add statements
this->get_token();
if(this_token.type==__elsif)
@ -1555,7 +1556,7 @@ abstract_syntax_tree nasal_parse::conditional_expr()
print_parse_error(lack_right_curve,this_token.line,this_token.type);
}
elsif_node.add_children(block_generate());
choose_main_node.add_children(elsif_node);
conditional_main_node.add_children(elsif_node);
this->get_token();// get next 'elsif' if it exists
}
this->push_token();
@ -1568,11 +1569,11 @@ abstract_syntax_tree nasal_parse::conditional_expr()
else_node.set_node_line(this_token.type);
else_node.set_node_type(__else);
else_node.add_children(block_generate());
choose_main_node.add_children(else_node);
conditional_main_node.add_children(else_node);
}
else
this->push_token();
// get elsif or else
return choose_main_node;
return conditional_main_node;
}
#endif