ash: improve set -x to quote strings as necessary
Basen on the patch from Martijn Dekker <martijn@inlv.org>
function old new delta
evalcommand 1161 1302 +141
maybe_single_quote - 60 +60
getoptscmd 527 546 +19
readtoken1 2819 2823 +4
localcmd 366 364 -2
evaltreenr 495 479 -16
evaltree 495 479 -16
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/3 up/down: 224/-34) Total: 190 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/ash_test/ash-quoting/mode_x.tests b/shell/ash_test/ash-quoting/mode_x.tests
new file mode 100755
index 0000000..16dae3f
--- /dev/null
+++ b/shell/ash_test/ash-quoting/mode_x.tests
@@ -0,0 +1,14 @@
+set -x
+
+var1=val
+var2='one two'
+true %s\\n one "two 'three" four
+
+# assignment:
+this=command
+# NOT assignment, +x code should show it quoted:
+"this=command"
+
+if true; then true; fi
+# +x code should quote 'if' here:
+"if" true