Changeset 6b00876 in mainline for kernel/generic/src/console/kconsole.c

Timestamp:

2016-03-16T09:22:06Z (8 years ago)

Author:

Aurelio Colosimo <aurelio@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d9ffc54

Parents:

0cfc18d3

Message:

kconsole tab completion: permit tab at first char too

This patch makes it possible, for the user, to tab the first char,
so that a list of available commands is shown: a quick alternative
to typing "help".

File:

• kernel/generic/src/console/kconsole.c (modified) (2 diffs)

kernel/generic/src/console/kconsole.c

@@ -362 +362 @@
                                 putchar(current[position]);
                         
-                        if (position == 0)
-                                continue;
                         
                         /*
@@ -371 +369 @@
                         size_t beg;
                         unsigned sp = 0, narg = 0;
-                        for (beg = position - 1; (beg > 0) && (!isspace(current[beg]));
-                            beg--);
-                        
-                        if (isspace(current[beg]))
-                                beg++;
-                        
-                        wstr_to_str(tmp, position - beg + 1, current + beg);
+                        if (position == 0) {
+                                tmp[0] = '\0';
+                                beg = 0;
+                        }
+                        else {
+                                for (beg = position - 1; (beg > 0) && (!isspace(current[beg]));
+                                    beg--);
+                                
+                                if (isspace(current[beg]))
+                                        beg++;
+                                
+                                wstr_to_str(tmp, position - beg + 1, current + beg);
+                        }
                         
                         /* Count which argument number are we tabbing (narg=0 is cmd) */