Changes/additions to input character set handling:

 - After discussion with Simon, change the default input charset back to ASCII,
   rather than trying to work it out from the locale, for the sake of promoting
   .but file portability.

 - Add a new command-line option "--input-charset=csname", which overrides the
   ASCII default for all input files (since there's no other way to use a
   non-ASCII-compatible input file).

 - Output a warning if -Cinput-charset:foo is specified that it has no effect.

 - Update the docs to match all this. Also try to clarify some other things in
   this area that caught me out.

[originally from svn r5332]

1 files changed, 2 insertions, 0 deletions

diff --git a/halibut.h b/halibut.h
index f76d059..8c7caed 100644
--- a/halibut.h
+++ b/halibut.h
@@ -206,6 +206,8 @@ enum {
     err_nomemory,		       /* out of memory */
     err_optnoarg,		       /* option `-%s' requires an argument */
     err_nosuchopt,		       /* unrecognised option `-%s' */
+    err_cmdcharset,		       /* unrecognised charset %s (cmdline) */
+    err_futileopt,		       /* futile option `-%s'%s */
     err_noinput,		       /* no input files */
     err_cantopen,		       /* unable to open input file `%s' */
     err_nodata,			       /* no data in input files */