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1
8
9 package beaver.comp.run;
10
11 import java.io.File  ;
12 import java.io.IOException ;
13
14 import beaver.Parser;
15 import beaver.comp.ParserGenerator;
16 import beaver.comp.io.SrcReader;
17 import beaver.comp.util.Log;
18 import beaver.spec.Grammar;
19
20
22 public class Make
23 {
24 static void printVersion()
25 {
26 System.err.print("Beaver parser generator v");
27 System.err.println(ParserGenerator.VERSION);
28 System.err.println("Copyright (C) 2003,2004 Alexander Demenchuk <alder@softanvil.com>.");
29 System.err.println("All rights reserved.");
30 }
31
32 static void printUsage()
33 {
34 System.err.println("Usage: java -jar beaver.jar [options] <grammar file>");
35 System.err.println("where possible options are:");
36 System.err.println(" -a Generate parsing states report (.stat)");
37 System.err.println(" -c Do not compress parsing tables");
38 System.err.println(" -d <dir> Specify where to place generated files");
39 System.err.println(" -D Do not generate anything - dry-run");
40 System.err.println(" -e Export parsing tables into a file (.spec)");
41 System.err.println(" -n Generate non-anonymous delegates for action routines");
42 System.err.println(" -s Sort terminals (by name)");
43 System.err.println(" -t Generate terminal names");
44 System.err.println(" -T Export Terminals \"enum\" class into a file");
45 System.err.println(" -s Sort terminals (by name)");
46 System.err.println(" -w Use \"switch\" to invoke action routines");
47 System.err.println(" -v Print version information and exit");
48 System.err.println(" -h Print this help text and exit");
49 }
50
51 static Options parseOptions(String [] args)
52 {
53 Options opt = new Options();
54 int file_name_arg_index = args.length - 1;
55 for (int i = 0; i < file_name_arg_index; i++)
56 {
57 int len = args[i].length();
58 if (len < 2 || args[i].charAt(0) != '-')
59 throw new IllegalArgumentException ("Error: \"" + args[i] + "\" is an invalid option.");
60 multioptions:
61 for (int j = 1; j < len; j++)
62 {
63 switch (args[i].charAt(j))
64 {
65 case 'a':
66 opt.report_actions = true;
67 break;
68 case 'c':
69 opt.no_compression = true;
70 break;
71 case 'd':
72 {
73 if (++i == file_name_arg_index)
74 throw new IllegalArgumentException ("-d option specified without a destination directory.");
75
76 opt.dest_dir = new File (args[i]);
77 break multioptions;
78 }
79 case 'D':
80 opt.no_output = true;
81 break;
82 case 'e':
83 opt.exp_parsing_tables = true;
84 break;
85 case 'n':
86 opt.name_action_classes = true;
87 break;
88 case 's':
89 opt.sort_terminals = true;
90 break;
91 case 't':
92 opt.terminal_names = true;
93 break;
94 case 'T':
95 opt.export_terminals = true;
96 break;
97 case 'w':
98 opt.use_switch = true;
99 break;
100 case 'v':
101 printVersion();
102 System.exit(0);
103 break;
104 case 'h':
105 printUsage();
106 System.exit(0);
107 break;
108 default:
109 throw new IllegalArgumentException ("Error: \"-" + args[i].charAt(j) + "\" is an invalid option.");
110 }
111 }
112 }
113 return opt;
114 }
115
116 static File getSrcFile(String name)
117 {
118 File file = new File (name);
119 if (!file.canRead())
120 throw new IllegalArgumentException ("Error: cannot read \"" + name + "\"");
121 return file;
122 }
123
124 static void compile(SrcReader src, Options opt, Log log)
125 {
126 try
127 {
128 ParserGenerator.compile(src, opt, log);
129 }
130 catch (Parser.Exception e)
131 {
132 System.err.print("Error: ");
133 System.err.println(e.getMessage());
134 }
135 catch (Grammar.Exception e)
136 {
137 System.err.print("Error: ");
138 System.err.println(e.getMessage());
139 }
140 catch (IOException e)
141 {
142 System.err.print("System Error: ");
143 System.err.println(e.getMessage());
144 }
145 catch (Exception e)
146 {
147 e.printStackTrace();
148 }
149 }
150
151 public static void main(String [] args) throws IOException
152 {
153 if (args.length == 0)
154 {
155 printUsage();
156 }
157 else
158 {
159 try
160 {
161 Log log = new Log();
162 Options opts = parseOptions(args);
163 File src_file = getSrcFile(args[args.length - 1]);
164 SrcReader src_reader = new SrcReader(src_file);
165 compile(src_reader, opts, log);
166 log.report(src_file.getName(), src_reader);
167 }
168 catch (IllegalArgumentException e)
169 {
170 System.err.println(e.getMessage());
171 printUsage();
172 }
173 }
174 }
175 }
176 |
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