hush: implement negative start in the ${v: -n[:m]} idiom

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-06 19:48:20 +02:00
parent 3234045d07
commit 5dad7bdc3b
5 changed files with 37 additions and 2 deletions
--- a/shell/ash_test/ash-vars/var_bash6.right
+++ b/shell/ash_test/ash-vars/var_bash6.right
@@ -0,0 +1,5 @@
+Expected Actual
+a*z    : a*z
+\z     : \z
+a1z a2z: a1z a2z
+z      : z