From feff9d1d9757c4a902c8a7d0bdc88e8fc881f113 Mon Sep 17 00:00:00 2001
From: yhirose <yuji.hirose.bug@gmail.com>
Date: Wed, 11 Mar 2015 14:10:59 -0400
Subject: [PATCH] Updated documentation.

---
 README.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/README.md b/README.md
index 00f3a03..9e220e9 100644
--- a/README.md
+++ b/README.md
@@ -89,6 +89,11 @@ struct SemanticValue {
     std::string name; // Definition name for the sematic value
     const char* s;    // Token start for the semantic value
     size_t      n;    // Token length for the semantic value
+
+	// Utility method
+    template <typename T> T& get();
+    template <typename T> const T& get() const;
+    std::string str() const;
 };
 
 struct SemanticValues : protected std::vector<SemanticValue>
@@ -96,6 +101,17 @@ struct SemanticValues : protected std::vector<SemanticValue>
     const char* s;      // Token start
     size_t      n;      // Token length
     size_t      choice; // Choice number (0 based index)
+
+    using std::vector<T>::size;
+    using std::vector<T>::operator[];
+    using std::vector<T>::begin;
+    using std::vector<T>::end;
+    // NOTE: There are more std::vector methods available...
+
+	// Transform the semantice values vector to another vector
+    template <typename F> auto map(size_t beg, size_t end, F f) const -> vector<typename std::remove_const<decltype(f(SemanticValue()))>::type>;
+    template <typename F> auto map(F f) const -> vector<typename std::remove_const<decltype(f(SemanticValue()))>::type>;
+    template <typename T> auto map(size_t beg = 0, size_t end = -1) const -> vector<T>;
 }
 ```