xxq250/Nasal-Interpreter
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update

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This commit is contained in:
Li Haokun
2021-08-06 18:57:06 +08:00
committed by GitHub
parent 40b690b67b
commit 76a2548e95
2 changed files with 85 additions and 187 deletions
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34
main.cpp
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@@ -15,12 +15,12 @@ void help_cmd()
<<" input file name to execute script file.\n\n"
<<"nasal [option] [file]\n"
<<"option:\n"
<<" --lex | view token info.\n"
<<" --ast | view abstract syntax tree.\n"
<<" --code | view bytecode.\n"
<<" --exec | execute script file.\n"
<<" --time | execute and get the running time.\n"
<<" --opcnt | count operands while running.\n"
<<" -l, --lex | view token info.\n"
<<" -a, --ast | view abstract syntax tree.\n"
<<" -c, --code | view bytecode.\n"
<<" -e, --exec | execute script file.\n"
<<" -t, --time | execute and get the running time.\n"
<<" -o, --opcn | count operands while running.\n"
<<"file:\n"
<<" input file name to execute script file.\n";
return;
@@ -63,7 +63,7 @@ void execute(std::string& file,std::string& command)
die("lexer",file);
return;
}
if(command=="--lex")
if(command=="--lex" || command=="-l")
{
lexer.print_token();
return;
@@ -74,7 +74,7 @@ void execute(std::string& file,std::string& command)
die("parse",file);
return;
}
if(command=="--ast")
if(command=="--ast" || command=="-a")
{
parse.get_root().print_ast(0);
return;
@@ -92,7 +92,7 @@ void execute(std::string& file,std::string& command)
die("codegen",file);
return;
}
if(command=="--code")
if(command=="--code" || command=="-c")
{
codegen.print_byte_code();
return;
@@ -102,9 +102,9 @@ void execute(std::string& file,std::string& command)
codegen.get_num_table(),
import.get_file()
);
if(command=="--exec" || command=="--opcnt")
vm.run(codegen.get_exec_code(),command=="--opcnt");
else if(command=="--time")
if(command=="--exec" || command=="-e" || command=="--opcnt" || command=="-o")
vm.run(codegen.get_exec_code(),command=="--opcnt" || command=="-o");
else if(command=="--time" || command=="-t")
{
clock_t begin=clock();
vm.run(codegen.get_exec_code(),false);
@@ -123,16 +123,22 @@ int main(int argc,const char* argv[])
else if(argc==2 && argv[1][0]!='-')
{
file=argv[1];
command="--exec";
command="-e";
execute(file,command);
}
else if(argc==3 &&
(!strcmp(argv[1],"--lex") ||
!strcmp(argv[1],"-l") ||
!strcmp(argv[1],"--ast") ||
!strcmp(argv[1],"-a") ||
!strcmp(argv[1],"--code") ||
!strcmp(argv[1],"-c") ||
!strcmp(argv[1],"--exec") ||
!strcmp(argv[1],"-e") ||
!strcmp(argv[1],"--opcnt")||
!strcmp(argv[1],"--time")))
!strcmp(argv[1],"-o") ||
!strcmp(argv[1],"--time") ||
!strcmp(argv[1],"-t")))
{
file=argv[2];
command=argv[1];