Refactor command-line parsing. (Steve Leblanc)

1 files changed, 55 insertions, 0 deletions

diff --git a/src/engine/SCons/Optik/errors.py b/src/engine/SCons/Optik/errors.py
new file mode 100644
index 0000000..dca8a69
--- /dev/null
+++ b/src/engine/SCons/Optik/errors.py
@@ -0,0 +1,55 @@
+"""optik.errors
+
+Exception classes used by Optik.
+"""
+
+__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
+
+# Original Optik revision this is based on:
+__Optik_revision__ = "errors.py,v 1.5 2002/02/13 23:29:47 gward Exp"
+
+# Copyright (c) 2001 Gregory P. Ward.  All rights reserved.
+# See the README.txt distributed with Optik for licensing terms.
+
+# created 2001/10/17 GPW (from optik.py)
+
+
+class OptikError (Exception):
+    def __init__ (self, msg):
+        self.msg = msg
+
+    def __str__ (self):
+        return self.msg
+
+
+class OptionError (OptikError):
+    """
+    Raised if an Option instance is created with invalid or
+    inconsistent arguments.
+    """
+
+    def __init__ (self, msg, option):
+        self.msg = msg
+        self.option_id = str(option)
+
+    def __str__ (self):
+        if self.option_id:
+            return "option %s: %s" % (self.option_id, self.msg)
+        else:
+            return self.msg
+
+class OptionConflictError (OptionError):
+    """
+    Raised if conflicting options are added to an OptionParser.
+    """
+
+class OptionValueError (OptikError):
+    """
+    Raised if an invalid option value is encountered on the command
+    line.
+    """
+
+class BadOptionError (OptikError):
+    """
+    Raised if an invalid or ambiguous option is seen on the command-line.
+    """