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1  <?php  <?php
 //--------------------------------------------------------------------------------  
 //indexfile_make.php, v0.1a, Copyright David T. Ashley, 2016  
 //--------------------------------------------------------------------------------  
2  //-------------------------------------------------------------------------------------------------  //-------------------------------------------------------------------------------------------------
3  //Copyright 2016 David T. Ashley  //$Header$
4  //-------------------------------------------------------------------------------------------------  //-------------------------------------------------------------------------------------------------
5  //This source code and any program in which it is compiled/used is provided under the GNU GENERAL  //This source code and any program in which it is compiled/used is provided under the MIT
6  //PUBLIC LICENSE, Version 3, full license text below.  //LICENSE (full license text below).
7  //-------------------------------------------------------------------------------------------------  //-------------------------------------------------------------------------------------------------
8  //                    GNU GENERAL PUBLIC LICENSE  //Copyright (c) 2016 David T. Ashley
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9  //  //
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11  //parts of the General Public License.  Of course, your program's commands  //associated documentation files (the "Software"), to deal in the Software without restriction,
12  //might be different; for a GUI interface, you would use an "about box".  //including without limitation the rights to use, copy, modify, merge, publish, distribute,
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20  //into proprietary programs.  If your program is a subroutine library, you  //NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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23  //Public License instead of this License.  But first, please read  //OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 //<http://www.gnu.org/philosophy/why-not-lgpl.html>.  
24  //-------------------------------------------------------------------------------------------------  //-------------------------------------------------------------------------------------------------
 //This program, a PHP script, creates thumbnail images for recognized  
 //image files in the current working directory.  This program is part of a  
 //3-program suite designed to collectively create a web page directly from  
 //digital camera files (and of course the web page can be customized by  
 //hand-editing after it is automatically generated).  The supported process for  
 //creating a web page involves 3 programs (rather than 1) primarily to circumvent  
 //the involuntary process termination that will occur in some shared environments  
 //if a process consumes too much CPU time.  
 //  
 //The 3 programs in the 3-program suite are:  
 //  
 //   filenames_canonize.php:  
 //      Converts all names of files in a directory to lower-case, and makes  
 //      substitutions for any unusual characters.  
 //  
 //   thumbnails_make.php (this program):  
 //      Creates thumbnails from recognized image types.  The thumbnails are  
 //      named relative to the original image file with the suffix "_small".  
 //      Only 20 files are converted on each invocation of the program, to  
 //      avoid the involuntary process termination that typically occurs in  
 //      a shared hosting environment when a process uses too much CPU time.  
 //      The program should be run repeatedly until it indicates that it has  
 //      no more thumbnails to create.  
 //  
 //      If any full-sized photos are modified, any corresponding thumbnails  
 //      should be deleted and thumbnails_make.php and indexfile_make.php should  
 //      be run again.  
 //  
 //   indexfile_make.php  
 //      Scans a directory and makes an index file ("index2.php") displaying  
 //      all the thumbnail images, each of which link to the corresponding  
 //      full-sized image.  The index file is tailored to Dave Ashley's  
 //      needs, but the created file can be edited and most of the content  
 //      pasted into an HTML file.  To avoid the accidental loss of  
 //      information, any existing "index2.php" file is renamed out of the  
 //      way.  
 //  
 //This script is designed to be run manually (rather than automatically invoked  
 //as a result of a web page request).  It was written in PHP for convenience  
 //simply because DreamHost (the web hosting company Dave Ashley uses) has as part  
 //of its hosting environment PHP with the ImageMagick library compiled in.  
 //  
 //Usually, this script is invoked using "php <path>/indexfile_make.php", but the  
 //method of invocation may vary based on computing platform details.  
 //--------------------------------------------------------------------------------  
 //This program is free software: you can redistribute it and/or modify  
 //it under the terms of the GNU General Public License as published by  
 //the Free Software Foundation, either version 3 of the License, or  
 //(at your option) any later version.  
 //  
 //This program is distributed in the hope that it will be useful,  
 //but WITHOUT ANY WARRANTY; without even the implied warranty of  
 //MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  
 //GNU General Public License for more details.  
 //  
 //The GNU General Public License is reproduced below, and also is  
 //available at http://www.gnu.org/licenses/.  
 //--------------------------------------------------------------------------------  
 //                    GNU GENERAL PUBLIC LICENSE  
 //                       Version 3, 29 June 2007  
 //  
 // Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>  
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 //  
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25  //--------------------------------------------------------------------------------  //--------------------------------------------------------------------------------
26  //C O N F I G U R A T I O N  //C O N F I G U R A T I O N
27  //--------------------------------------------------------------------------------  //--------------------------------------------------------------------------------

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