I am late for school, so this is extremely rushed, but I think this will do what you want. All the user has to do is highlight the chapter title (or any unique text he feels defines the chapter) and it will add a delimiter to the beginning of said text. The script will then save the file and when viewed it will break the book into chapters by the delimiter (I used *). The JS only works in IE because I am rushing.
<?php
?>
<script>
function formatText () {
var selectedText = document.selection.createRange().text;
if (selectedText != "") {
// Add Delimiter
var newText = "*" + selectedText;
document.selection.createRange().text = newText;
}
}
</script>
<?php
// Script
$delimiter = '*';
$filename = "book.txt";
if ($_GET['action'] == 'view'){
$handle = fopen($filename, "r");
$contents = null;
while (!feof($handle)) {
$contents .= fread($handle, filesize($filename));
}
$contents = explode ($delimiter,$contents);
$chapters = count($contents) - 1;
// Show Chapter Links
for ($c = 1; $c<=$chapters; $c++){
echo '<a href="#'.$c.'">Chapter '.$c.'</a><br />';
}
// Show Book By Chapters
for ($c = 0; $c<=$chapters; $c++){
echo '<a name="'.$c.'"></a>'.$contents[$c].'<br /><br />';
}
}
elseif ($_GET['action'] == 'edit' && isset($_POST['submit'])){
$book = $_POST['book'];
// Let's make sure the file exists and is writable first.
if (is_writable($filename)) {
// In our example we're opening $filename in append mode.
// The file pointer is at the bottom of the file hence
// that's where $somecontent will go when we fwrite() it.
if (!$handle = fopen($filename, 'w')) {
echo "Cannot open file ($filename)";
exit;
}
// Write $somecontent to our opened file.
if (fwrite($handle, $book) === FALSE) {
echo "Cannot write to file ($filename)";
exit;
}
echo "Success, wrote to file ($filename)";
fclose($handle);
} else {
echo "The file $filename is not writable";
}
}
elseif ($_GET['action'] == 'edit'){
$handle = fopen($filename, "r");
$contents = null;
while (!feof($handle)) {
$contents .= fread($handle, filesize($filename));
}
// Delimiter Form
echo '<form name="form" action="chris.php?action=edit" method="post">';
echo '<textarea name="book" cols="100" rows="20">'.$contents.'</textarea><br />';
echo '<input type="button" value="New Chapter" onclick="formatText()" />';
echo '<input name="submit" type="submit" value="Submit" />';
echo '</form>';
}
?>