implement support for parameter substitution via #/% operators

2 files changed, 38 insertions, 0 deletions

diff --git a/shell/hush_test/hush-vars/var_posix1.right b/shell/hush_test/hush-vars/var_posix1.right
new file mode 100644
index 000000000..55f35798a
--- /dev/null
+++ b/shell/hush_test/hush-vars/var_posix1.right
@@ -0,0 +1,17 @@
+abcdcd
+abcdcd
+abcdcd
+cdcd
+babcdcd
+babcdcd
+ababcdcd
+
+ababcd
+ababcd
+ababcd
+abab
+ababcdc
+ababcdc
+ababcdcd
+
+end
diff --git a/shell/hush_test/hush-vars/var_posix1.tests b/shell/hush_test/hush-vars/var_posix1.tests
new file mode 100755
index 000000000..4139e2cc3
--- /dev/null
+++ b/shell/hush_test/hush-vars/var_posix1.tests
@@ -0,0 +1,21 @@
+var=ababcdcd
+
+echo ${var#ab}
+echo ${var##ab}
+echo ${var#a*b}
+echo ${var##a*b}
+echo ${var#?}
+echo ${var##?}
+echo ${var#*}
+echo ${var##*}
+
+echo ${var%cd}
+echo ${var%%cd}
+echo ${var%c*d}
+echo ${var%%c*d}
+echo ${var%?}
+echo ${var%%?}
+echo ${var%*}
+echo ${var%%*}
+
+echo end