Update some TODO comments

Author: cgay

command-line-parser.dylan

@@ -6,6 +6,7 @@ copyright: See LICENSE file in this distribution.
 //======================================================================
 //  The All-Singing, All-Dancing Argument Parser
 //======================================================================
+//
 //  Ole J. Tetlie wrote an option parser, and it was pretty good. But it
 //  didn't support all the option types required by d2c, and besides, we
 //  felt a need to overdo something.
@@ -29,20 +30,12 @@ copyright: See LICENSE file in this distribution.
 //  All the tokens on that command line are arguments. "-x" and "--y"
 //  are options, and "bar" is a parameter. "baz" is a positional argument.
 
-// todo -- There is no indication of default values in the generated synopsis,
-//         and the syntax for specifying "syntax" and docstring is bizarre at
-//         best.  --cgay 2006.11.27
-
 // TODO(cgay): <choice-option>: --foo=a|b|c (#f as choice means option
 // value is optional?)
 
 // TODO(cgay): Add a required: (or required?: ?) init keyword that
 // makes non-positional args required else an error is generated.
 
-// TODO(cgay): This error sucks: "<unknown-option>" is not present as
-// a key for {<string-table>: size 12}.  How about "<unknown-option>
-// is not a recognized command-line option."  See next item.
-
 // TODO(cgay): With an option that has negative options (e.g.,
 // --verbose and --quiet in the same option) just show the positive
 // option in the synopsis but add a comment to the doc about the

help.dylan

@@ -2,6 +2,9 @@ Module: command-line-parser
 Synopsis: Implements the --help flag and help subcommand
 
 
+// TODO(cgay): Automatically display option default values. It's too easy to
+// forget to add %default% to the help string.
+
 // TODO(cgay): Wrap the descriptions nicely
 
 define function program-name () => (name :: <string>)