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Nasal-Interpreter
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Delete nasal_interpreter.cpp

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Valk Richard Li 2019-09-27 22:41:45 +08:00 committed by GitHub
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commit f6c2f203c8
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version0.3/nasal_interpreter.cpp
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#include "nasal.h"
int main()
{
std::string command;
std::cout<<">> nasal-- script by ValKmjolnir"<<std::endl;
std::cout<<">> input \"help\" to find help."<<std::endl;
while(1)
{
std::cout<<">> ";
std::getline(std::cin,command);
if(command=="help")
{
std::cout<<">> nasal-- script by ValKmjolnir"<<std::endl;
std::cout<<">> 1. input file name to run the lexer."<<std::endl;
std::cout<<">> 2. command \"cls\" to clear the screen."<<std::endl;
std::cout<<">> 3. command \"exit\" to shut down the program."<<std::endl;
std::cout<<">> 4. command \"lexer\" to see tokens in stack."<<std::endl;
std::cout<<">> 5. command \"parser\" to run parser."<<std::endl;
std::cout<<">> 6. command \"del\" to delete all elements in stack."<<std::endl;
std::cout<<">> 7. command \"run\" to run the programme in stack."<<std::endl;
std::cout<<">> 8. command \"rs\" to check the source program."<<std::endl;
}
else if(command=="cls")
{
system("cls");
//linux system("clear");
//macOS system("clear");
}
else if(command=="rs")
nasal::PrintSourceFile();
else if(command=="exit")
{
break;
}
else if(command=="lexer")
nasal::nasal_lexer.print();
else if(command=="del")
{
nasal::nasal_lexer.delete_all();
nasal::nasal_parse.stack_set_empty();
nasal::nasal_var_stack.delete_all();
nasal::nasal_func_stack.delete_all();
}
else if(command=="parser" || command=="run")
{
nasal::nasal_parse.parse_work(nasal::nasal_lexer);
//nasal::nasal_parse.print_stack();
}
else
nasal::RunProcess(command);
}
return 0;
}