1 files changed, 121 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/ds/nsManifestLineReader.h b/src/libs/xpcom18a4/xpcom/ds/nsManifestLineReader.h
new file mode 100644
index 00000000..761c28c8
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/ds/nsManifestLineReader.h
@@ -0,0 +1,121 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef nsManifestLineReader_h__
+#define nsManifestLineReader_h__
+
+#include "nspr.h"
+#include "nsDebug.h"
+
+class nsManifestLineReader
+{
+public:
+    nsManifestLineReader() : mBase(nsnull) {} 
+    ~nsManifestLineReader() {}
+
+    void Init(char* base, PRUint32 flen) 
+    {
+        mBase = mCur = mNext = base; 
+        mLength = 0;
+        mLimit = base + flen;
+    }
+
+    PRBool NextLine()
+    {
+        if(mNext >= mLimit)
+            return PR_FALSE;
+        
+        mCur = mNext;
+        mLength = 0;
+        
+        while(mNext < mLimit)
+        {
+            if(IsEOL(*mNext))
+            {
+                *mNext = '\0';
+                for(++mNext; mNext < mLimit; ++mNext)
+                    if(!IsEOL(*mNext))
+                        break;
+                return PR_TRUE;
+            }
+            ++mNext;
+            ++mLength;
+        }
+        return PR_FALSE;        
+    }
+
+    int ParseLine(char** chunks, int* lengths, int maxChunks)
+    {
+        NS_ASSERTION(mCur && maxChunks && chunks, "bad call to ParseLine");
+        int found = 0;
+        chunks[found++] = mCur;
+
+        if(found < maxChunks)
+        {
+            char *lastchunk = mCur;
+            int *lastlength = lengths;
+            for(char* cur = mCur; *cur; cur++)
+            {
+                if(*cur == ',')
+                {
+                    *cur = 0;
+                    // always fill in the previous chunk's length
+                    *lastlength++ = cur - lastchunk;
+                    chunks[found++] = lastchunk = cur+1;
+                    if(found == maxChunks)
+                        break;
+                }
+            }
+            // crazy pointer math - calculate the length of the final chunk
+            *lastlength = (mCur + mLength) - lastchunk;
+        }
+        return found;
+    }
+
+    char*       LinePtr() {return mCur;}    
+    PRUint32    LineLength() {return mLength;}    
+
+    PRBool      IsEOL(char c) {return c == '\n' || c == '\r';}
+private:
+    char*       mCur;
+    PRUint32    mLength;
+    char*       mNext;
+    char*       mBase;
+    char*       mLimit;
+};
+
+#endif