[!b.],
[.
''.
- .
+.
' '.
- .
+.
' '.
- .
+.
' '.])
dnl Keep this test in sync with the examples for !CONCAT in the manual.
xy.
1234.
123.])
+
+dnl Keep this test in sync with the examples for !HEAD in the manual.
+PSPP_CHECK_MACRO_EXPANSION([!HEAD],
+ [DEFINE !h()
+!HEAD('a b c').
+!HEAD('a').
+!HEAD(!NULL).
+!HEAD('').
+!ENDDEFINE],
+ [!h.],
+ [a.
+a.
+.
+.])
+
+dnl Keep this test in sync with the examples for !TAIL in the manual.
+PSPP_CHECK_MACRO_EXPANSION([!TAIL],
+ [DEFINE !t()
+!TAIL('a b c').
+!TAIL('a').
+!TAIL(!NULL).
+!TAIL('').
+!ENDDEFINE],
+ [!t.],
+ [b c.
+.
+.
+.])
+
+dnl Keep this test in sync with the examples for !INDEX in the manual.
+PSPP_CHECK_MACRO_EXPANSION([!INDEX],
+ [DEFINE !i()
+!INDEX(banana, an).
+!INDEX(banana, nan).
+!INDEX(banana, apple).
+!INDEX("banana", nan).
+!INDEX("banana", "nan").
+!INDEX(!UNQUOTE("banana"), !UNQUOTE("nan")).
+!ENDDEFINE],
+ [!i.],
+ [2.
+3.
+0.
+4.
+0.
+3.])
+
+dnl Keep this test in sync with the examples for !LENGTH in the manual.
+PSPP_CHECK_MACRO_EXPANSION([!LENGTH],
+ [DEFINE !l()
+!LENGTH(123).
+!LENGTH(123.00).
+!LENGTH( 123 ).
+!LENGTH("123").
+!LENGTH(xyzzy).
+!LENGTH("xyzzy").
+!LENGTH("xy""zzy").
+!LENGTH(!UNQUOTE("xyzzy")).
+!LENGTH(!UNQUOTE("xy""zzy")).
+!LENGTH(!NULL).
+!ENDDEFINE.
+DEFINE !la(!positional !enclose('(',')'))
+!LENGTH(!1).
+!ENDDEFINE.],
+ [!l.
+!la(a b c).
+!la().],
+ [3.
+6.
+3.
+5.
+5.
+7.
+9.
+5.
+6.
+0.
+5.
+0.])
+
+dnl Keep this test in sync with the examples for !SUBSTR in the manual.
+PSPP_CHECK_MACRO_EXPANSION([!SUBSTR],
+ [DEFINE !s()
+!SUBSTR(banana, 3).
+!SUBSTR(banana, 3, 3).
+!SUBSTR("banana", 3).
+!SUBSTR("banana", 3, 3).
+!SUBSTR(banana, 3, 0).
+!SUBSTR(banana, 3, 10).
+!SUBSTR(banana, 10, 3).
+!ENDDEFINE.],
+ [!s.],
+ [nana.
+nan.
+anana". dnl"
+
+ana.
+.
+nana.
+.])
+