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Nasal-Interpreter
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Add recognition for '(' & ')' when calculating

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Valk Richard Li 2019-10-02 07:31:55 -05:00 committed by GitHub
parent 639fce5483
commit 9ae53c6f9c
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 43 additions and 3 deletions
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2
version1.0/call_ide.txt
View File

@ -4,6 +4,8 @@ id[0] and id[1];
1*1/1+1; 1*1/1+1;
2*3*4/1-2+3; 2*3*4/1-2+3;
1-1+20-2*10; 1-1+20-2*10;
1+s1*(s2+s3[0])-1;
var e=1+s1*(s2+s3[0])-1;
id; id;
"str"; "str";
id(id); id(id);

1
version1.0/nasal.h
View File

@ -10,6 +10,7 @@
#include "nasal_token_type.h" #include "nasal_token_type.h"
#include "abstract_syntax_tree.h" #include "abstract_syntax_tree.h"
#include "ast.h"
#include "nasal_var.h" #include "nasal_var.h"
#include "nasal_var_inrun_list.h" #include "nasal_var_inrun_list.h"

43
version1.0/nasal_parser.h
View File

@ -45,16 +45,16 @@ class nasal_parser
{ {
line=temp.top().line; line=temp.top().line;
if(line==1) if(line==1)
std::cout<<"line "<<line<<" "; std::cout<<"line "<<line<<" ";
else else
std::cout<<std::endl<<"line "<<line<<" "; std::cout<<std::endl<<"line "<<line<<" ";
} }
else else
{ {
while(line!=temp.top().line) while(line!=temp.top().line)
{ {
++line; ++line;
std::cout<<std::endl<<"line "<<line<<" "; std::cout<<std::endl<<"line "<<line<<" ";
} }
} }
} }
@ -109,6 +109,7 @@ class nasal_parser
return; return;
} }
void parse_main_work(); void parse_main_work();
void in_curve_calc_expr();
void number_begin_expr(); void number_begin_expr();
void string_begin_expr(); void string_begin_expr();
void identifier_begin_expr(); void identifier_begin_expr();
@ -370,6 +371,7 @@ void nasal_parser::definition_expr()
case __func:function_generate_expr();break; case __func:function_generate_expr();break;
case __left_bracket:list_generate_expr();break; case __left_bracket:list_generate_expr();break;
case __left_brace:hash_generate_expr();break; case __left_brace:hash_generate_expr();break;
case __left_curve:in_curve_calc_expr();break;
default: default:
++error; ++error;
std::cout<<">>[Error] line "<<this_token.line<<": expect a data after this operator."<<std::endl; std::cout<<">>[Error] line "<<this_token.line<<": expect a data after this operator."<<std::endl;
@ -389,6 +391,7 @@ void nasal_parser::assignment_expr()
case __func:function_generate_expr();break; case __func:function_generate_expr();break;
case __left_bracket:list_generate_expr();break; case __left_bracket:list_generate_expr();break;
case __left_brace:hash_generate_expr();break; case __left_brace:hash_generate_expr();break;
case __left_curve:in_curve_calc_expr();break;
default: default:
++error; ++error;
std::cout<<">>[Error] line "<<this_token.line<<": incorretc data type when doing assignment."<<std::endl; std::cout<<">>[Error] line "<<this_token.line<<": incorretc data type when doing assignment."<<std::endl;
@ -507,6 +510,7 @@ void nasal_parser::loop_expr()
case __number:number_begin_expr();break; case __number:number_begin_expr();break;
case __string:string_begin_expr();break; case __string:string_begin_expr();break;
case __id:identifier_begin_expr();break; case __id:identifier_begin_expr();break;
case __left_curve:in_curve_calc_expr();break;
default: default:
++error; ++error;
std::cout<<">>[Error] line "<<this_token.line<<": expect a condition."<<std::endl; std::cout<<">>[Error] line "<<this_token.line<<": expect a condition."<<std::endl;
@ -551,6 +555,7 @@ void nasal_parser::loop_expr()
case __id:identifier_begin_expr();break; case __id:identifier_begin_expr();break;
case __number:number_begin_expr();break; case __number:number_begin_expr();break;
case __string:string_begin_expr();break; case __string:string_begin_expr();break;
case __left_curve:in_curve_calc_expr();break;
case __semi:parse.push(this_token);break; case __semi:parse.push(this_token);break;
default: default:
std::cout<<">>[Error] line "<<this_token.line<<": \'"; std::cout<<">>[Error] line "<<this_token.line<<": \'";
@ -566,6 +571,7 @@ void nasal_parser::loop_expr()
case __id:identifier_begin_expr();break; case __id:identifier_begin_expr();break;
case __number:number_begin_expr();break; case __number:number_begin_expr();break;
case __string:string_begin_expr();break; case __string:string_begin_expr();break;
case __left_curve:in_curve_calc_expr();break;
case __right_curve:parse.push(this_token);break; case __right_curve:parse.push(this_token);break;
default: default:
std::cout<<">>[Error] line "<<this_token.line<<": \'"; std::cout<<">>[Error] line "<<this_token.line<<": \'";
@ -612,6 +618,7 @@ void nasal_parser::loop_expr()
case __id:identifier_begin_expr();break; case __id:identifier_begin_expr();break;
case __number:number_begin_expr();break; case __number:number_begin_expr();break;
case __string:string_begin_expr();break; case __string:string_begin_expr();break;
case __left_curve:in_curve_calc_expr();break;
case __left_bracket:list_generate_expr();break; case __left_bracket:list_generate_expr();break;
case __right_curve:parse.push(this_token);break; case __right_curve:parse.push(this_token);break;
default: default:
@ -648,6 +655,7 @@ void nasal_parser::add_sub_operator_expr()
case __number:number_begin_expr();break; case __number:number_begin_expr();break;
case __string:string_begin_expr();break; case __string:string_begin_expr();break;
case __id:identifier_begin_expr();break; case __id:identifier_begin_expr();break;
case __left_curve:in_curve_calc_expr();break;
default: default:
++error; ++error;
std::cout<<">>[Error] line "<<this_token.line<<": expect a data after this operator."<<std::endl; std::cout<<">>[Error] line "<<this_token.line<<": expect a data after this operator."<<std::endl;
@ -664,6 +672,7 @@ void nasal_parser::mul_div_operator_expr()
case __number:number_begin_expr();break; case __number:number_begin_expr();break;
case __string:string_begin_expr();break; case __string:string_begin_expr();break;
case __id:identifier_begin_expr();break; case __id:identifier_begin_expr();break;
case __left_curve:in_curve_calc_expr();break;
default: default:
++error; ++error;
std::cout<<">>[Error] line "<<this_token.line<<": expect a data after this operator."<<std::endl; std::cout<<">>[Error] line "<<this_token.line<<": expect a data after this operator."<<std::endl;
@ -680,6 +689,7 @@ void nasal_parser::link_operator_expr()
case __number:number_begin_expr();break; case __number:number_begin_expr();break;
case __string:string_begin_expr();break; case __string:string_begin_expr();break;
case __id:identifier_begin_expr();break; case __id:identifier_begin_expr();break;
case __left_curve:in_curve_calc_expr();break;
default: default:
++error; ++error;
std::cout<<">>[Error] line "<<this_token.line<<": expect a data after this operator."<<std::endl; std::cout<<">>[Error] line "<<this_token.line<<": expect a data after this operator."<<std::endl;
@ -696,6 +706,7 @@ void nasal_parser::compare_operator_expr()
case __number:number_begin_expr();break; case __number:number_begin_expr();break;
case __string:string_begin_expr();break; case __string:string_begin_expr();break;
case __id:identifier_begin_expr();break; case __id:identifier_begin_expr();break;
case __left_curve:in_curve_calc_expr();break;
default: default:
++error; ++error;
std::cout<<">>[Error] line "<<this_token.line<<": expect a data after this operator."<<std::endl; std::cout<<">>[Error] line "<<this_token.line<<": expect a data after this operator."<<std::endl;
@ -704,6 +715,25 @@ void nasal_parser::compare_operator_expr()
} }
return; return;
} }
void nasal_parser::in_curve_calc_expr()
{
get_token();
switch(this_token.type)
{
case __number:number_begin_expr();break;
case __string:string_begin_expr();break;
case __id:identifier_begin_expr();break;
case __left_curve:in_curve_calc_expr();break;
default:parse.push(this_token);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;
}
void nasal_parser::number_begin_expr() void nasal_parser::number_begin_expr()
{ {
get_token(); get_token();
@ -722,6 +752,7 @@ void nasal_parser::number_begin_expr()
case __cmp_more: case __cmp_more:
case __cmp_less_or_equal: case __cmp_less_or_equal:
case __cmp_more_or_equal:compare_operator_expr();break; case __cmp_more_or_equal:compare_operator_expr();break;
case __left_curve:in_curve_calc_expr();break;
default:parse.push(this_token);break; default:parse.push(this_token);break;
} }
return; return;
@ -744,6 +775,7 @@ void nasal_parser::string_begin_expr()
case __cmp_more: case __cmp_more:
case __cmp_less_or_equal: case __cmp_less_or_equal:
case __cmp_more_or_equal:compare_operator_expr();break; case __cmp_more_or_equal:compare_operator_expr();break;
case __left_curve:in_curve_calc_expr();break;
default:parse.push(this_token);break; default:parse.push(this_token);break;
} }
return; return;
@ -756,6 +788,7 @@ void nasal_parser::call_list_expr()
case __number:number_begin_expr();break; case __number:number_begin_expr();break;
case __string:string_begin_expr();break; case __string:string_begin_expr();break;
case __id:identifier_begin_expr();break; case __id:identifier_begin_expr();break;
case __left_curve:in_curve_calc_expr();break;
default: default:
++error; ++error;
std::cout<<">>[Error] line "<<this_token.line<<": incorrect data type when calling a list."<<std::endl; std::cout<<">>[Error] line "<<this_token.line<<": incorrect data type when calling a list."<<std::endl;
@ -771,6 +804,7 @@ void nasal_parser::call_list_expr()
case __number:number_begin_expr();break; case __number:number_begin_expr();break;
case __string:string_begin_expr();break; case __string:string_begin_expr();break;
case __id:identifier_begin_expr();break; case __id:identifier_begin_expr();break;
case __left_curve:in_curve_calc_expr();break;
case __right_bracket:return;break;// this is [number:] case __right_bracket:return;break;// this is [number:]
} }
get_token(); get_token();
@ -820,6 +854,8 @@ void nasal_parser::call_function_expr()
case __id:identifier_begin_expr();break; case __id:identifier_begin_expr();break;
case __left_bracket:list_generate_expr();break; case __left_bracket:list_generate_expr();break;
case __left_brace:hash_generate_expr();break; case __left_brace:hash_generate_expr();break;
case __left_curve:in_curve_calc_expr();break;
case __func:function_generate_expr();break;
default: default:
++error; ++error;
std::cout<<">>[Error] line "<<this_token.line<<": incorrect token '"; std::cout<<">>[Error] line "<<this_token.line<<": incorrect token '";
@ -923,6 +959,7 @@ void nasal_parser::parse_main_work()
case __id:identifier_begin_expr();check_semi_at_end();break; case __id:identifier_begin_expr();check_semi_at_end();break;
case __number:number_begin_expr();check_semi_at_end();break; case __number:number_begin_expr();check_semi_at_end();break;
case __string:string_begin_expr();check_semi_at_end();break; case __string:string_begin_expr();check_semi_at_end();break;
case __left_curve:in_curve_calc_expr();check_semi_at_end();break;
case __if:parse.push(this_token);if_else_expr();break; case __if:parse.push(this_token);if_else_expr();break;
case __while: case __while:
case __for: case __for: