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Nasal-Interpreter
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update

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Valk Richard Li 2019-09-23 09:57:24 -05:00 committed by GitHub
parent 82ffd94a07
commit f798350499
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1 changed files with 29 additions and 4 deletions
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33
version1.0/nasal_parser.h
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@ -112,10 +112,10 @@ class nasal_parser
void definition_expr();
void assignment_expr();
void while_loop_expr();
void for_loop_expr();
void foreach_index_loop_expr();
void for_loop_expr();//
void foreach_index_loop_expr();//
void loop_expr();
void if_else_expr();
void if_else_expr();//
void function_expr();
void list_init_generator();
@ -369,7 +369,32 @@ void nasal_parser::if_else_expr()
std::cout<<">>[Error] line "<<this_token.line<<": ";
return;
}
get_token();
if(this_token.type!=__left_curve)
{
++error;
std::cout<<">>[Error] line "<<this_token.line<<": expect a \'(\' after if."<<std::endl;
return;
}
get_token();
switch(this_token.type)
{
case __id:identifier_begin_expr();break;
case __number:number_begin_expr();break;
case __string:string_begin_expr();break;
default:
++error;
std::cout<<">>[Error] line "<<this_token.line<<": missing condition when using if-else expression."<<std::endl;
return;
break;
}
get_token();
if(this_token.type!=__right_curve)
{
++error;
std::cout<<">>[Error] line "<<this_token.line<<": expect a \')\' at this line."<<std::endl;
return;
}
return;
}
void nasal_parser::function_expr()