From 0ecf93553c5148738bbd6d58f47a0067eb98be1e Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Sun, 24 Jul 2011 14:25:53 -0400
Subject: [PATCH] Nibbler

- Implemented Nibbler::getN, which allows for faster extraction of
  compound tokens if the length is known.
---
 src/Nibbler.cpp | 13 +++++++++++++
 src/Nibbler.h   |  1 +
 2 files changed, 14 insertions(+)

diff --git a/src/Nibbler.cpp b/src/Nibbler.cpp
index 6dcf9557d..1e7f6b46f 100644
--- a/src/Nibbler.cpp
+++ b/src/Nibbler.cpp
@@ -216,6 +216,19 @@ bool Nibbler::getUntilEOS (std::string& result)
   return false;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+bool Nibbler::getN (const int quantity, std::string& result)
+{
+  if (mCursor + quantity < mLength)
+  {
+    result = mInput.substr (mCursor, quantity);
+    mCursor += quantity;
+    return true;
+  }
+
+  return false;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 bool Nibbler::getQuoted (
   char c,
diff --git a/src/Nibbler.h b/src/Nibbler.h
index 381eba912..ff40f3e36 100644
--- a/src/Nibbler.h
+++ b/src/Nibbler.h
@@ -53,6 +53,7 @@ public:
   bool getAllOneOf (const std::string&, std::string&);
 */
 
+  bool getN (const int, std::string&);
   bool getQuoted (char, std::string&, bool quote = false);
   bool getDigit (int&);
   bool getInt (int&);