commit 37171a12878383e5e38a9512fb3764cf0b1391e0
author Václav Kubernát <kubervac@fit.cvut.cz> Fri Aug 31 17:01:48 2018 +0200
committer Jan Kundrát <kundrat@cesnet.cz> Tue Sep 04 16:27:00 2018 +0200
tree 4a6731b9d74f3d2ec8622ec9d3efa1c027874302
parent c89736b329fb2fc1d4fbcf0f9d660bbc8a6b0fb5

Support absolute paths

Change-Id: Ibe087d2bad0c6c9f1619d8811103415bcb3b4906

src/grammars.hpp

diff --git a/src/grammars.hpp b/src/grammars.hpp
index 06e1bf8..ffe6e8b 100644
--- a/src/grammars.hpp
+++ b/src/grammars.hpp
@@ -23,6 +23,7 @@
 x3::rule<leaf_class, leaf_> const leaf = "leaf";
 x3::rule<module_class, module_> const module = "module";
 x3::rule<node_class, node_> const node = "node";
+x3::rule<absoluteStart_class, Scope> const absoluteStart = "absoluteStart";
 x3::rule<path_class, path_> const path = "path";
 x3::rule<leaf_path_class, path_> const leafPath = "leafPath";
 
@@ -85,8 +86,13 @@
 auto const node_def =
         -(module) >> x3::expect[container | listElement | nodeup | leaf];
 
+auto const absoluteStart_def =
+        x3::omit['/'] >> x3::attr(Scope::Absolute);
+
+// I have to insert an empty vector to the first alternative, otherwise they won't have the same attribute
 auto const path_def =
-        node % '/';
+        absoluteStart >> x3::attr(decltype(path_::m_nodes)()) >> x3::eoi |
+        -(absoluteStart) >> node % '/';
 
 auto const leafPath_def =
         path;
@@ -159,6 +165,7 @@
 BOOST_SPIRIT_DEFINE(leaf)
 BOOST_SPIRIT_DEFINE(leafPath)
 BOOST_SPIRIT_DEFINE(node)
+BOOST_SPIRIT_DEFINE(absoluteStart)
 BOOST_SPIRIT_DEFINE(path)
 BOOST_SPIRIT_DEFINE(module)
 BOOST_SPIRIT_DEFINE(leaf_data)