|
996
|
1 /*
|
|
|
2
|
|
|
3 Interpreter for the Glypho language
|
|
|
4
|
|
|
5 Rune Berge 2005
|
|
|
6 http://rune.krokodille.com/lang
|
|
|
7
|
|
|
8 Glypho specification:
|
|
|
9 http://www4.ncsu.edu/~bcthomp2/glypho.txt
|
|
|
10
|
|
|
11 This software is Public Domain.
|
|
|
12
|
|
|
13 */
|
|
|
14
|
|
|
15
|
|
|
16 import java.io.*;
|
|
|
17
|
|
|
18 public class Glypho {
|
|
|
19
|
|
|
20 public static void displayError(String msg) {
|
|
|
21 System.err.println(msg);
|
|
|
22 System.exit(1);
|
|
|
23 }
|
|
|
24
|
|
|
25 public static void main(String[] args) {
|
|
|
26 StringBuffer source = new StringBuffer();
|
|
|
27 InputStream in = System.in;
|
|
|
28 OutputStream out = System.out;
|
|
|
29 OutputStream err = System.err;
|
|
|
30
|
|
|
31 if (args.length==0) displayUsage();
|
|
|
32
|
|
|
33 for (int i = 0; i < args.length; i++) {
|
|
|
34 if (args[i].charAt(0) == '-') {
|
|
|
35 switch (args[i].charAt(1)) {
|
|
|
36 case 'i': if ((i++) < (args.length - 1))
|
|
|
37 try {
|
|
|
38 in = new FileInputStream(args[i]);
|
|
|
39 }catch (FileNotFoundException e) { displayError("File not found: " + args[i]); }
|
|
|
40 else displayError("Missing input filename");
|
|
|
41 break;
|
|
|
42 case 'o': if ((i++) < (args.length - 1))
|
|
|
43 try {
|
|
|
44 out = new FileOutputStream(args[i]);
|
|
|
45 }catch (FileNotFoundException e) { displayError("Unable to write to " + args[i]); }
|
|
|
46 else displayError("Missing output filename");
|
|
|
47 break;
|
|
|
48 case 'e': if ((i++) < (args.length - 1))
|
|
|
49 try {
|
|
|
50 err = new FileOutputStream(args[i]);
|
|
|
51 }catch (FileNotFoundException e) { displayError("Unable to write to " + args[i]); }
|
|
|
52 else displayError("Missing error filename");
|
|
|
53 break;
|
|
|
54 case 'h': displayUsage();
|
|
|
55 break;
|
|
|
56 default: displayError("Invalid argument: " + args[i]);
|
|
|
57
|
|
|
58 }
|
|
|
59
|
|
|
60 }
|
|
|
61 }
|
|
|
62
|
|
|
63 if (args.length <= 0) displayError("Error: No source file specified!");
|
|
|
64
|
|
|
65 if (args.length >= 1) {
|
|
|
66 String sourceFile = args[args.length-1];
|
|
|
67
|
|
|
68 try {
|
|
|
69 FileInputStream src = new FileInputStream(sourceFile);
|
|
|
70 int b=-1;
|
|
|
71
|
|
|
72 b = src.read();
|
|
|
73 while (b>=0) {
|
|
|
74 source.append((char)b);
|
|
|
75 b = src.read();
|
|
|
76 }
|
|
|
77
|
|
|
78 } catch (FileNotFoundException e) { displayError("File not found: " + args[args.length-1]); }
|
|
|
79 catch (IOException e) { displayError(e.toString());}
|
|
|
80
|
|
|
81
|
|
|
82 boolean shorthand = false;
|
|
|
83 if (sourceFile.substring(sourceFile.length() - 4).equals(".gsh")) shorthand = true;
|
|
|
84
|
|
|
85 new Glypho(source.toString(), shorthand, in, out, err);
|
|
|
86
|
|
|
87 }
|
|
|
88
|
|
|
89 }//main()
|
|
|
90
|
|
|
91 public static void displayUsage() {
|
|
|
92 System.out.println("Glypho Interpreter version " + GlyphoInterpreter.VERSION);
|
|
|
93 System.out.println("Rune Berge - 2005 - http://rune.krokodille.com/lang");
|
|
|
94 System.out.println("Glypho specification: http://www4.ncsu.edu/~bcthomp2/glypho.txt");
|
|
|
95 System.out.println("");
|
|
|
96 System.out.println("This is software is Public Domain");
|
|
|
97 System.out.println("");
|
|
|
98 System.out.println("Usage: Glypho [OPTIONS] [filename]");
|
|
|
99 System.out.println("");
|
|
|
100 System.out.println("If the filename ends with .gsh it will be interpreted as Glypho shorthand.");
|
|
|
101 System.out.println("Otherwise it will be interpreted as regular Glypho.");
|
|
|
102 System.out.println("");
|
|
|
103 System.out.println("Options:");
|
|
|
104 System.out.println(" -i <filename> Read input from this file (default is standard input)");
|
|
|
105 System.out.println(" -o <filename> Write output to this file (default is standard output)");
|
|
|
106 System.out.println(" -e <filename> Write error messages to this file (default is standard output)");
|
|
|
107 System.out.println(" -h Display this information");
|
|
|
108 System.out.println("");
|
|
|
109 System.out.println("");
|
|
|
110 System.out.println("Please report any bugs to rune@krokodille.com");
|
|
|
111
|
|
|
112
|
|
|
113 System.exit(0);
|
|
|
114 }
|
|
|
115
|
|
|
116 public Glypho(String source, boolean shorthand, InputStream in, OutputStream out, OutputStream err) {
|
|
|
117
|
|
|
118 GlyphoInterpreter GI = new GlyphoInterpreter(in, out, err);
|
|
|
119 GI.interpret(source, shorthand);
|
|
|
120 }
|
|
|
121
|
|
|
122 } |
