xxq250/Nasal-Interpreter
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change function name and cli format

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ValKmjolnir
2021-10-14 23:22:28 +08:00
parent 58ea303202
commit 577546763f
12 changed files with 203 additions and 213 deletions
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nasal_lexer.h
+21 -21
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@@ -87,36 +87,36 @@ struct
struct token
{
int line;
int type;
uint32_t line;
uint32_t type;
std::string str;
token(int l=0,int t=tok_null,std::string s=""){line=l;type=t;str=s;}
token(uint32_t l=0,uint32_t t=tok_null,std::string s=""){line=l;type=t;str=s;}
};
class nasal_lexer
{
private:
int error;
int res_size;
int line;
int ptr;
uint32_t error;
uint32_t line;
uint32_t ptr;
size_t res_size;
std::string line_code;
std::string res;
std::vector<token> token_list;
int get_tok_type(const std::string&);
uint32_t get_type(const std::string&);
void die(const char*);
std::string id_gen();
std::string num_gen();
std::string str_gen();
public:
void openfile(const std::string&);
void scanner();
void print_token();
int get_error(){return error;}
std::vector<token>& get_token_list(){return token_list;}
void open(const std::string&);
void scan();
void print();
uint32_t err(){return error;}
const std::vector<token>& get_tokens(){return token_list;}
};
void nasal_lexer::openfile(const std::string& filename)
void nasal_lexer::open(const std::string& filename)
{
error=0;
res.clear();
@@ -137,7 +137,7 @@ void nasal_lexer::openfile(const std::string& filename)
return;
}
int nasal_lexer::get_tok_type(const std::string& tk_str)
uint32_t nasal_lexer::get_type(const std::string& tk_str)
{
for(int i=0;token_table[i].str;++i)
if(tk_str==token_table[i].str)
@@ -272,7 +272,7 @@ std::string nasal_lexer::str_gen()
return token_str;
}
void nasal_lexer::scanner()
void nasal_lexer::scan()
{
token_list.clear();
line=1;
@@ -297,7 +297,7 @@ void nasal_lexer::scanner()
if(IS_IDENTIFIER(res[ptr]))
{
token_str=id_gen();
token_list.push_back({line,get_tok_type(token_str),token_str});
token_list.push_back({line,get_type(token_str),token_str});
if(!token_list.back().type)
token_list.back().type=tok_id;
}
@@ -309,7 +309,7 @@ void nasal_lexer::scanner()
{
token_str=res[ptr];
line_code+=res[ptr];
int type=get_tok_type(token_str);
uint32_t type=get_type(token_str);
if(!type)
die("incorrect operator.");
token_list.push_back({line,type,token_str});
@@ -328,7 +328,7 @@ void nasal_lexer::scanner()
++ptr;
}
line_code+=token_str;
token_list.push_back({line,get_tok_type(token_str),token_str});
token_list.push_back({line,get_type(token_str),token_str});
}
else if(IS_CALC_OPERATOR(res[ptr]))
{
@@ -337,7 +337,7 @@ void nasal_lexer::scanner()
if(ptr<res_size && res[ptr]=='=')
token_str+=res[ptr++];
line_code+=token_str;
token_list.push_back({line,get_tok_type(token_str),token_str});
token_list.push_back({line,get_type(token_str),token_str});
}
else if(IS_NOTE(res[ptr]))// avoid note, after this process ptr will point to a '\n', so next loop line counter+1
while(++ptr<res_size && res[ptr]!='\n');
@@ -352,7 +352,7 @@ void nasal_lexer::scanner()
return;
}
void nasal_lexer::print_token()
void nasal_lexer::print()
{
for(auto& tok:token_list)
std::cout<<"("<<tok.line<<" | "<<tok.str<<")\n";