From c9ad56dacc24ac9a1cd24aab8b0a688c4e28db83 Mon Sep 17 00:00:00 2001
From: Tomoya Tanjo <ttanjo@gmail.com>
Date: Tue, 3 Nov 2020 10:01:13 +0000
Subject: [PATCH] Add Node.startMark

---
 source/dyaml/exception.d | 16 ++++++++++++++--
 source/dyaml/node.d      |  6 ++++++
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/source/dyaml/exception.d b/source/dyaml/exception.d
index 7a8c426..7e05b96 100644
--- a/source/dyaml/exception.d
+++ b/source/dyaml/exception.d
@@ -25,8 +25,7 @@ class YAMLException : Exception
     }
 }
 
-package:
-// Position in a YAML stream, used for error messages.
+/// Position in a YAML stream, used for error messages.
 struct Mark
 {
     package:
@@ -45,6 +44,18 @@ struct Mark
             column_ = cast(ushort)column;
         }
 
+        /// Get a line number.
+        @property ushort line() @safe pure nothrow @nogc const
+        {
+            return line_;
+        }
+
+        /// Get a column number.
+        @property ushort column() @safe pure nothrow @nogc const
+        {
+            return column_;
+        }
+
         /// Get a string representation of the mark.
         string toString() @safe pure nothrow const
         {
@@ -57,6 +68,7 @@ struct Mark
         }
 }
 
+package:
 // A struct storing parameters to the MarkedYAMLException constructor.
 struct MarkedYAMLExceptionData
 {
diff --git a/source/dyaml/node.d b/source/dyaml/node.d
index 5a74a13..24a62a4 100644
--- a/source/dyaml/node.d
+++ b/source/dyaml/node.d
@@ -402,6 +402,12 @@ struct Node
             return tag_;
         }
 
+        /// Return the start position of the node.
+        @property Mark startMark()  const @safe pure nothrow
+        {
+            return startMark_;
+        }
+
         /** Equality test.
          *
          * If T is Node, recursively compares all subnodes.