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, 1 deletions

diff --git a/help.c b/help.c
index 8104006..7235032 100644
--- a/help.c
+++ b/help.c
@@ -15,6 +15,7 @@ static char *helptext[] = {
     "         --ps[=filename]       generate PostScript output",
     "         --pdf[=filename]      generate PDF output",
     "         -Cfoo:bar:baz         append \\cfg{foo}{bar}{baz} to input",
+    "         --input-charset=cs    change default input file charset",
     "         --precise             report column numbers in error messages",
     "         --help                display this text",
     "         --version             display version number",
@@ -23,7 +24,7 @@ static char *helptext[] = {
 };
 
 static char *usagetext[] = {
-    "usage: halibut [--format[=filename]] [-Cconfig...] file.but [file.but...]",
+    "usage: halibut [--format[=filename]] [options] file.but [file.but...]",
     NULL
 };