2005-06-08 Frank Ch. Eigler <fche@redhat.com>

	systemtap/916
	Implement all basic scalar operators, including modify-assignment.
	* parse.cxx (lexer): Allow multi-character lookahead in order to
	scan 1/2/3-character operators.
	(parse_boolean_or/and/xor/shift): New routines.
	* translate.cxx (visit_assignment, visit_binary_expression,
	visit_*_crement): Generally rewrote.
	(visit_*): Added more parentheses in output.
	(emit_module_init): Initialize globals.
	* staptree.h, elaborate.cxx, elaborate.h: Remove exponentiation.
	* main.cxx (main): Add an end-of-line to output file.
	* testsuite/*: Several new tests.

2 files changed, 61 insertions, 7 deletions

diff --git a/testsuite/parseok/eleven.stp b/testsuite/parseok/eleven.stp
new file mode 100755
index 00000000..c05ca66f
--- /dev/null
+++ b/testsuite/parseok/eleven.stp
@@ -0,0 +1,54 @@
+#! stap -p1
+
+probe two
+{
+  # all assignment operators
+  a = b
+  a <<< b
+  a += b
+  a -= b
+  a *= b
+  a /= b
+  a %= b
+  a <<= b
+  a >>= b
+  a &= b
+  a ^= b
+  a |= b
+
+  # all ternary operators
+  a ? b : c
+
+  # all binary operators
+  a || b
+  a && b
+  a | b
+  a & b
+  a ^ b
+  a < b
+  a > b
+  a == b
+  a != b
+  a <= b
+  a >= b
+  a << b
+  a >> b
+  a . b
+  a + b
+  a - b
+  a * b
+  a / b
+  a % b
+
+  # all unary operators
+  a ++
+  a --
+  -- a
+  ++ a
+  ~ a
+  ! a
+  ;  # grammar glitch
+  + a
+  ;  # grammar glitch
+  - a
+}
diff --git a/testsuite/parseok/ten.stp b/testsuite/parseok/ten.stp
index 25d16e62..2da82f04 100755
--- a/testsuite/parseok/ten.stp
+++ b/testsuite/parseok/ten.stp
@@ -4,13 +4,13 @@ probe two
 {
   for (;;) ;
   for (a=0;;) { a + 4; break }
-  for (;a>0;) { a + 5; continue }
-  for (;;a++) { a + 5 }
-  for (a=0;a>0;) { a + 4 }
-  for (;a>0;a++) { a + 5 }
-  for (a=0;;a++) { a + 5 }
-  for (a=0; a<=4; a++) ;
-  for (a=0; a<=4; a++) { b = a }
+  for (;a>0;) { a ^ 5; continue }
+  for (;;a++) { a | 5 }
+  for (a=0;a>0;) { a << 4 }
+  for (;a>0;++a) { a >> 5 }
+  for (a=0;;a--) { a & 5 * b }
+  for (a=0; a<=4 && b>=5; --a) ;
+  for (a=0; a==4 || b!=5; a++) { b = a }
   next
   while (99) ;
   while (99) { break continue }