blob: ddf3165ac395232d7b153306769364bfe0cd2ebb (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/* NSC -- new scala compiler
* Copyright 2005 LAMP/EPFL
* @author Martin Odersky
*/
// $Id$
package scala.tools.nsc;
/** A class representing command line info for scalac */
class CompilerCommand(arguments: List[String], error: String => unit, interactive: boolean) {
private var fs: List[String] = List();
/** All files to compile */
def files: List[String] = fs.reverse;
/** The applicable settings */
val settings: Settings = new Settings(error);
/** The name of the command */
val cmdName = "scalac";
/** The file extension of files that the compiler can process */
val fileEnding = ".scala";
/** A message explaining usage and options */
def usageMsg: String = {
val helpSyntaxColumnWidth: int =
Iterable.max(settings.allSettings map (. helpSyntax.length()));
def format(s: String): String = {
val buf = new StringBuffer();
buf.append(s);
var i = s.length();
while (i < helpSyntaxColumnWidth) { buf.append(' '); i = i + 1 }
buf.toString()
}
settings.allSettings
.map(setting =>
format(setting.helpSyntax) + " " + setting.helpDescription)
.mkString(
"Usage: " + cmdName + " <options | source files>\n" +
"where possible options include: \n ",
"\n ",
"\n");
}
// initialization
var args = arguments;
var ok = true;
while (!args.isEmpty && ok) {
val args0 = args;
if (args.head.startsWith("-")) {
if (interactive) {
error("no options can be given in interactive mode");
ok = false
} else {
for (val setting <- settings.allSettings)
args = setting.tryToSet(args);
if (args eq args0) {
error("unknown option: '" + args.head + "'");
ok = false
}
}
} else if (args.head.endsWith(fileEnding)) {
fs = args.head :: fs;
args = args.tail
} else {
error("don't know what to do with " + args.head);
ok = false
}
}
}
|
