[gentoo-commits] proj/libbash:master commit in: scripts/, bashast/

["Petteri Räty" <betelgeuse@gentoo.org>]

commit:     8062053b59ad806fa327bb9dcb06f69acdadc6b7
Author:     Mu Qiao <qiaomuf <AT> gentoo <DOT> org>
AuthorDate: Sun May 22 13:42:35 2011 +0000
Commit:     Petteri Räty <betelgeuse <AT> gentoo <DOT> org>
CommitDate: Sun May 22 13:42:35 2011 +0000
URL:        http://git.overlays.gentoo.org/gitweb/?p=proj/libbash.git;a=commit;h=8062053b

Walker: support negation in command execution

Syntax like "! true" is supported now.

---
 bashast/libbashWalker.g        |    3 ++-
 scripts/command_execution.bash |    1 +
 2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/bashast/libbashWalker.g b/bashast/libbashWalker.g
index bd87ee8..b760f74 100644
--- a/bashast/libbashWalker.g
+++ b/bashast/libbashWalker.g
@@ -470,7 +470,8 @@ execute_command[const std::string& name, std::vector<std::string>& libbash_args]
 			std::cerr << name << " is not supported yet" << std::endl;
 			walker->set_status(1);
 		}
-	};
+	}
+	(BANG { walker->set_status(!walker->get_status()); })?;
 
 argument[std::vector<std::string>& args]
 	: string_expr {

diff --git a/scripts/command_execution.bash b/scripts/command_execution.bash
index 9e1901c..37cce6e 100644
--- a/scripts/command_execution.bash
+++ b/scripts/command_execution.bash
@@ -10,6 +10,7 @@ FOO001=$(echo hello)
 FOO002=$(hi)
 true && echo "right"
 false && echo "wrong"
+! true && echo "wrong"
 false || echo "right"
 true || echo "wrong"
 echo "end"