fix(rc): prompt during command entry

3 files changed, 10 insertions, 4 deletions

diff --git a/sys/cmd/rc/exec.c b/sys/cmd/rc/exec.c
index 5f3c6d6..1b311ec 100644
--- a/sys/cmd/rc/exec.c
+++ b/sys/cmd/rc/exec.c
@@ -914,6 +914,8 @@ Xreadcmd(void)
     flush(shell.err);
     root = runner;
 
+    shell.prompt = "> ";
+
     if(yyparse()){
         // resource cleanup?
         if(runner->flag.eof)
diff --git a/sys/cmd/rc/prompt.c b/sys/cmd/rc/prompt.c
index e3ff7d9..d6846e6 100644
--- a/sys/cmd/rc/prompt.c
+++ b/sys/cmd/rc/prompt.c
@@ -1,16 +1,19 @@
 #include "rc.h"
 
+
 int
 prompt(ushort *flag)
 {
-    int f = *flag;
+    int fd, f = *flag;
     if(f){
-        if(!readline("> ")){
+        if(!readline(shell.prompt)){
             runner->flag.eof = 1;
             return 0;
         }
-        print(shell.err,"\n\r");
-        flush(shell.err);
+        fd = mapfd(0);
+        write(fd, "\n\r", 2);
+        shell.prompt = ">    "; // NOTE: can't use tab here: we have a hacky prompt length computation
+
         runner->line++;
         *flag = 0;
     }
diff --git a/sys/cmd/rc/rc.h b/sys/cmd/rc/rc.h
index e35c3e4..5a9aac5 100644
--- a/sys/cmd/rc/rc.h
+++ b/sys/cmd/rc/rc.h
@@ -152,6 +152,7 @@ struct Shell
     Io *err;
     int status;
     int interactive;
+    char *prompt;
     Thread *jobs;
 };