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Nasal-Interpreter
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🚀 change indentation of `nasal_ast::print` & add new function 

`nasal_ast::tree`.
This commit is contained in:
ValKmjolnir 2022-08-22 22:35:53 +08:00
parent da8aa4744e
commit 987d3ce9e2
2 changed files with 18 additions and 12 deletions
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28
nasal_ast.h
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@ -137,7 +137,8 @@ public:
nasal_ast(const u32 l=0,const u32 t=ast_null):_line(l),_type(t),_num(0){}
nasal_ast(const nasal_ast&);
nasal_ast(nasal_ast&&);
void print(u32,bool);
void tree();
void print(u32,bool,std::vector<string>&);
void clear();
nasal_ast& operator=(const nasal_ast&);
@ -207,10 +208,15 @@ void nasal_ast::clear()
_child.clear();
}
void nasal_ast::print(u32 depth,bool last=false)
void nasal_ast::tree()
{
static std::vector<string> intentation={};
for(auto& i:intentation)
std::vector<string> tmp;
print(0,false,tmp);
}
void nasal_ast::print(u32 depth,bool last,std::vector<string>& indent)
{
for(auto& i:indent)
std::cout<<i;
std::cout<<ast_name[_type];
if(_type==ast_str || _type==ast_id ||
@ -221,22 +227,22 @@ void nasal_ast::print(u32 depth,bool last=false)
std::cout<<":"<<_num;
std::cout<<'\n';
if(last && depth)
intentation.back()=" ";
indent.back()=" ";
else if(!last && depth)
#ifdef _WIN32
intentation.back()="| ";
indent.back()="| ";
#else
intentation.back()="│ ";
indent.back()="│ ";
#endif
for(u32 i=0;i<_child.size();++i)
{
#ifdef _WIN32
intentation.push_back(i==_child.size()-1?"`-":"|-");
indent.push_back(i==_child.size()-1?"+-":"|-");
#else
intentation.push_back(i==_child.size()-1?"└─":"├─");
indent.push_back(i==_child.size()-1?"└─":"├─");
#endif
_child[i].print(depth+1,i==_child.size()-1);
intentation.pop_back();
_child[i].print(depth+1,i==_child.size()-1,indent);
indent.pop_back();
}
}

2
nasal_parse.h
View File

@ -99,7 +99,7 @@ private:
nasal_ast ret_expr();
public:
nasal_parse(nasal_err& e):ptr(0),in_func(0),in_loop(0),tokens(nullptr),nerr(e){}
void print(){root.print(0);}
void print(){root.tree();}
void compile(const nasal_lexer&);
nasal_ast& ast(){return root;}
const nasal_ast& ast() const {return root;}