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LineToken.d

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00001 /*******************************************************************************
00002 
00003         @file LineToken.d
00004         
00005         Copyright (c) 2004 Kris Bell
00006         
00007         This software is provided 'as-is', without any express or implied
00008         warranty. In no event will the authors be held liable for damages
00009         of any kind arising from the use of this software.
00010         
00011         Permission is hereby granted to anyone to use this software for any 
00012         purpose, including commercial applications, and to alter it and/or 
00013         redistribute it freely, subject to the following restrictions:
00014         
00015         1. The origin of this software must not be misrepresented; you must
00016            not claim that you wrote the original software. If you use this 
00017            software in a product, an acknowledgment within documentation of 
00018            said product would be appreciated but is not required.
00019 
00020         2. Altered source versions must be plainly marked as such, and must 
00021            not be misrepresented as being the original software.
00022 
00023         3. This notice may not be removed or altered from any distribution
00024            of the source.
00025 
00026         4. Derivative works are permitted, but they must carry this notice
00027            in full and credit the original source.
00028 
00029 
00030                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
00031 
00032 
00033         @version        Initial version, December 2005      
00034 
00035         @author         Kris
00036 
00037 
00038 *******************************************************************************/
00039 
00040 module mango.text.LineToken;
00041 
00042 private import  mango.text.Text,
00043                 mango.text.Token;
00044 
00045 /*******************************************************************************
00046 
00047 
00048 *******************************************************************************/
00049 
00050 class LineTokenTemplate(T) : TokenTemplate!(T)
00051 {
00052         /***********************************************************************
00053  
00054         
00055         ***********************************************************************/
00056 
00057         this (T[] string = null)
00058         {
00059                 super (string);
00060         }
00061 
00062         /***********************************************************************
00063  
00064         
00065         ***********************************************************************/
00066 
00067         override bool next()
00068         {
00069                 do {
00070                    if (++peek < end)
00071                       {
00072                       peek = TextTemplate!(T).locate (peek, '\n', end - peek);
00073                       if (peek is null)
00074                           peek = end;
00075                       else
00076                          if ((peek > last) && *(peek-1) == '\r')
00077                               return found (1);
00078                          else
00079                             return found;
00080                       }
00081                    } while (getMore);
00082                 return hasTail;
00083         }
00084 }
00085 
00086 // convenience alias
00087 alias LineTokenTemplate!(char) LineToken;

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