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revision 112 by dashley, Sat Dec 31 19:45:55 2016 UTC revision 113 by dashley, Sat Dec 31 20:36:51 2016 UTC
# Line 5  Line 5 
5  //This source code and any program in which it is compiled/used is provided under the MIT  //This source code and any program in which it is compiled/used is provided under the MIT
6  //LICENSE (full license text below).  //LICENSE (full license text below).
7  //-------------------------------------------------------------------------------------------------  //-------------------------------------------------------------------------------------------------
8  //Copyright (c) 2016 David T. Ashley  //pics_filenames_canonize.php, Copyright (c) 2016 David T. Ashley
9  //  //
10  //Permission is hereby granted, free of charge, to any person obtaining a copy of this software and  //Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
11  //associated documentation files (the "Software"), to deal in the Software without restriction,  //associated documentation files (the "Software"), to deal in the Software without restriction,
# Line 22  Line 22 
22  //DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,  //DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23  //OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  //OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  //-------------------------------------------------------------------------------------------------  //-------------------------------------------------------------------------------------------------
25  //This program, a PHP script, modifies all filenames in a directory to a canonical  //This program, a PHP script, modifies all filenames in a directory to a canonical form (no
26  //form (no upper-case letters or unusual characters).  This program is part of a  //upper-case letters or unusual characters).  This program is part of a 3-program suite designed to
27  //3-program suite designed to collectively create a web page directly from  //collectively create a web page directly from digital camera files (and of course the web page can
28  //digital camera files (and of course the web page can be customized by  //be customized by hand-editing after it is automatically generated).
 //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.  
29  //  //
30  //The 3 programs in the 3-program suite are:  //The 3 programs in the 3-program suite are:
31  //  //
32  //   filenames_canonize.php (this program):  //   pics_filenames_canonize.php (this program):
33  //      Converts all names of files in a directory to lower-case, and makes  //      Converts all names of files in a directory to lower-case, and makes substitutions for any
34  //      substitutions for any unusual characters.  //      unusual characters.
35    //
36    //   pics_thumbnails_make.php:
37    //      Creates thumbnails from recognized image types.  The thumbnails are named relative to the
38    //      original image file with the suffix "_small".  Only 20 files are converted on each
39    //      invocation of the program, to avoid the involuntary process termination that typically
40    //      occurs in a shared hosting environment when a process uses too much CPU time.  The program
41    //      should be run repeatedly until it indicates that it has no more thumbnails to create.
42    //
43    //      If any full-sized photos are modified, any corresponding thumbnails should be deleted and
44    //      pics_thumbnails_make.php and pics_indexfile_make.php should be run again.
45    //
46    //   pics_indexfile_make.php
47    //      Scans a directory and makes an index file ("index2.php") displaying all the thumbnail
48    //      images, each of which link to the corresponding full-sized image.  The index file is
49    //      tailored to Dave Ashley's needs, but the created file can be edited and most of the
50    //      content pasted into an HTML file.  To avoid the accidental loss of information, any
51    //      existing "index2.php" file is renamed out of the way.
52    //
53    //This script is designed to be run manually (rather than automatically invoked as a result of a
54    //web page request).  It was written in PHP for convenience simply because DreamHost (the web
55    //hosting company Dave Ashley used at the time these scripts were written) has as part of its
56    //hosting environment PHP with the ImageMagick library compiled in.
57  //  //
58  //   thumbnails_make.php:  //Usually, this script is invoked using "php <path>/filenames_canonize.php", but the method of
59  //      Creates thumbnails from recognized image types.  The thumbnails are  //invocation may vary based on computing platform details.
60  //      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>/filenames_canonize.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  
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 //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/.  
 //--------------------------------------------------------------------------------  
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 //--------------------------------------------------------------------------------  
61  //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
62  //--------------------------------------------------------------------------------  //--------------------------------------------------------------------------------
63  //Configuration switch combinations were not tested.  E-mail me any program  //Configuration switch combinations were not tested.  E-mail me any program
64  //corrections (dashley@gmail.com).  //corrections (dashley@gmail.com).
65  define ("CFG_PROGNAME", "filenames_canonize.php");  define ("CFG_PROGNAME", "pics_filenames_canonize.php");
66     //Number of characters per line preferred for console output.     //Number of characters per line preferred for console output.
67  define ("CFG_CONSOLE_STD_LINE_LEN", 78);  define ("CFG_CONSOLE_STD_LINE_LEN", 78);
68     //Number of characters per line preferred for console output.     //Number of characters per line preferred for console output.
# Line 726  define ( Line 84  define (
84     //is the replacement.  Any characters not found in the map will be replaced     //is the replacement.  Any characters not found in the map will be replaced
85     //by the last character of the constant.     //by the last character of the constant.
86  //--------------------------------------------------------------------------------  //--------------------------------------------------------------------------------
87  //Repeats a character to the console output a certain number of times.  //Repeats a character $c to the console output $n times.
88  function rep_char_con($c, $n)  function rep_char_con($c, $n)
89  {  {
90     while ($n--)     while ($n--)
# Line 765  function get_file_names_in_dir() Line 123  function get_file_names_in_dir()
123  function canonize($in_fname)  function canonize($in_fname)
124  {  {
125     //Well, the algorithm below is O(N^2) or worse ... I knew there was a reason     //Well, the algorithm below is O(N^2) or worse ... I knew there was a reason
126     //that computers get faster every year.     //that computers get faster every year.  (Yes, that was a joke.)
127     $out_fname = "";     $out_fname = "";
128    
129     for ($i = 0; $i < strlen($in_fname); $i++)     for ($i = 0; $i < strlen($in_fname); $i++)
# Line 802  function canonize($in_fname) Line 160  function canonize($in_fname)
160  //--------------------------------------------------------------------------------  //--------------------------------------------------------------------------------
161     //Write introductory message.     //Write introductory message.
162     hor_line_thick();     hor_line_thick();
163     echo CFG_PROGNAME . " Copyright (C) 2015 David T. Ashley\n";     echo CFG_PROGNAME . ", Copyright (c) 2016 David T. Ashley\n";
164     echo "This program comes with ABSOLUTELY NO WARRANTY; and is licensed under\n";     echo "This program comes with ABSOLUTELY NO WARRANTY; and is licensed under the\n";
165     echo "the GNU General Public License, Version 3.  A copy of this license is\n";     echo "MIT License.  A copy of this license is provided in the source code\n";
166     echo "provided in the source code of this program.\n";     echo "of this program.\n";
167     hor_line_thin();     hor_line_thin();
168     //-----------------------------------------------------------------------------     //-----------------------------------------------------------------------------
169     //Get and emit the names of everything in the directory.     //Get and emit the names of everything in the directory.
170     $file_list = get_file_names_in_dir();     $file_list = get_file_names_in_dir();
171     if ($file_list === FALSE)     if ($file_list === FALSE)
172     {     {
173        echo "List of files from PHP function scandir() is empty.\n";        echo "List of files from PHP function scandir() is empty (rv === FALSE).\n";
174        echo "Serious internal error, or nothing to do.  Script cannot continue.\n";        echo "Serious internal error, or nothing to do.  Script cannot continue.\n";
175        hor_line_thick();        hor_line_thick();
176        exit(1);        exit(1);

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