Feat(libunicode): Added an explicit unicode library

Refactored code to pull out utf8 functions from base into a standalone
library. Also left the required function inside arg.c so that code that
calls ARG_BEGIN doesn't have to link to libunicode.

1 files changed, 14 insertions, 5 deletions

diff --git a/sys/cmd/rc/prompt.c b/sys/cmd/rc/prompt.c
index d6846e6..6a32d59 100644
--- a/sys/cmd/rc/prompt.c
+++ b/sys/cmd/rc/prompt.c
@@ -1,21 +1,30 @@
 #include "rc.h"
 
+static char promptbuf[7] = {'>', ' ', 0, ' ' , ' ', ' ', 0};
+
+void
+resetprompt(void)
+{
+    promptbuf[2] = 0;
+}
 
 int
 prompt(ushort *flag)
 {
-    int fd, f = *flag;
+    int f = *flag;
+
     if(f){
-        if(!readline(shell.prompt)){
+        if(!readline(promptbuf)){
             runner->flag.eof = 1;
             return 0;
         }
-        fd = mapfd(0);
-        write(fd, "\n\r", 2);
-        shell.prompt = ">    "; // NOTE: can't use tab here: we have a hacky prompt length computation
+        write(mapfd(0), "\n\r", 2);
+
+        promptbuf[2] = ' ';
 
         runner->line++;
         *flag = 0;
     }
+
     return 1;
 }