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comparison src/luan/tools/CmdLine.java @ 86:6db8f286fa6c

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_ENV is per module, not global git-svn-id: https://luan-java.googlecode.com/svn/trunk@87 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Wed, 27 Feb 2013 08:03:51 +0000
parents 4bf3d0c0b6b9
children 6ca02b188dba
comparison
equal deleted inserted replaced
85:b2551f00bc51 86:6db8f286fa6c
12 12
13 public class CmdLine { 13 public class CmdLine {
14 14
15 public static void main(String[] args) { 15 public static void main(String[] args) {
16 LuanState luan = LuanState.newStandard(); 16 LuanState luan = LuanState.newStandard();
17 BasicLib.make_standard(luan); 17 LuanTable env;
18 try {
19 env = luan.newEnvironment();
20 } catch(LuanException e) {
21 System.err.println("command line error: "+e.getMessage());
22 System.exit(-1);
23 throw new RuntimeException(); // never
24 }
18 boolean interactive = false; 25 boolean interactive = false;
19 boolean showVersion = false; 26 boolean showVersion = false;
20 int i = 0; 27 int i = 0;
21 if( args.length == 0 ) { 28 if( args.length == 0 ) {
22 interactive = true; 29 interactive = true;
33 } else if( arg.equals("-e") ) { 40 } else if( arg.equals("-e") ) {
34 if( ++i == args.length ) 41 if( ++i == args.length )
35 error("'-e' needs argument"); 42 error("'-e' needs argument");
36 String cmd = args[i]; 43 String cmd = args[i];
37 try { 44 try {
38 LuanFunction fn = BasicLib.load(luan,cmd,"(command line)"); 45 LuanFunction fn = BasicLib.load(luan,cmd,"(command line)",env);
39 luan.call(fn,null,null); 46 luan.call(fn,null,null);
40 } catch(LuanException e) { 47 } catch(LuanException e) {
41 System.err.println("command line error: "+e.getMessage()); 48 System.err.println("command line error: "+e.getMessage());
42 System.exit(-1); 49 System.exit(-1);
43 } 50 }
44 } else if( arg.equals("-") ) { 51 } else if( arg.equals("-") ) {
45 try { 52 try {
46 BasicLib.do_file(luan,"stdin"); 53 BasicLib.do_file(luan,"stdin",env);
47 } catch(LuanException e) { 54 } catch(LuanException e) {
48 System.err.println(e.getMessage()); 55 System.err.println(e.getMessage());
49 System.exit(-1); 56 System.exit(-1);
50 } 57 }
51 System.exit(0); 58 System.exit(0);
63 System.arraycopy(args,1,varArgs,0,varArgs.length); 70 System.arraycopy(args,1,varArgs,0,varArgs.length);
64 LuanTable argsTable = new LuanTable(); 71 LuanTable argsTable = new LuanTable();
65 for( int j=0; j<args.length; j++ ) { 72 for( int j=0; j<args.length; j++ ) {
66 argsTable.put( j, args[j] ); 73 argsTable.put( j, args[j] );
67 } 74 }
68 luan.global().put("arg",argsTable); 75 env.put("arg",argsTable);
69 try { 76 try {
70 LuanFunction fn = BasicLib.load_file(luan,file); 77 LuanFunction fn = BasicLib.load_file(luan,file,env);
71 luan.call(fn,null,null,varArgs); 78 luan.call(fn,null,null,varArgs);
72 } catch(LuanException e) { 79 } catch(LuanException e) {
73 // System.err.println("error: "+e.getMessage()); 80 // System.err.println("error: "+e.getMessage());
74 e.printStackTrace(); 81 e.printStackTrace();
75 System.exit(-1); 82 System.exit(-1);
76 } 83 }
77 } 84 }
78 if( interactive ) 85 if( interactive )
79 interactive(luan); 86 interactive(luan,env);
80 } 87 }
81 88
82 private static void error(String msg) { 89 private static void error(String msg) {
83 System.err.println(msg); 90 System.err.println(msg);
84 System.err.println("usage: java luan.CmdLine [options] [script [args]]"); 91 System.err.println("usage: java luan.CmdLine [options] [script [args]]");
91 System.err.println(" -- stop handling options"); 98 System.err.println(" -- stop handling options");
92 System.err.println(" - stop handling options and execute stdin"); 99 System.err.println(" - stop handling options and execute stdin");
93 System.exit(-1); 100 System.exit(-1);
94 } 101 }
95 102
96 static void interactive(LuanState luan) { 103 static void interactive(LuanState luan,LuanTable env) {
97 while( true ) { 104 while( true ) {
98 System.out.print("> "); 105 System.out.print("> ");
99 String input = new Scanner(System.in).nextLine(); 106 String input = new Scanner(System.in).nextLine();
100 try { 107 try {
101 Object[] rtn = luan.eval(input,"stdin"); 108 Object[] rtn = luan.eval(input,"stdin",env);
102 if( rtn.length > 0 ) 109 if( rtn.length > 0 )
103 BasicLib.print(luan,rtn); 110 BasicLib.print(luan,rtn);
104 } catch(LuanException e) { 111 } catch(LuanException e) {
105 System.out.println(e.getMessage()); 112 System.out.println(e.getMessage());
106 } 113 }