wp-prismatic/inc/prismatic-core.php
Jeff Starr a4e230dcce initial commit
git-svn-id: https://plugins.svn.wordpress.org/prismatic/trunk@1521267 b8457f37-d9ea-0310-8a92-e5e31aec5664
2016-10-24 17:20:42 +00:00

179 lines
4.2 KiB
PHP

<?php // Prismatic - Core Functions
if (!defined('ABSPATH')) exit;
function prismatic_load_library() {
global $prismatic_options_general;
if (isset($prismatic_options_general['library']) && $prismatic_options_general['library'] === 'prism') {
require_once PRISMATIC_DIR .'lib/prism/prism.php';
} elseif (isset($prismatic_options_general['library']) && $prismatic_options_general['library'] === 'highlight') {
require_once PRISMATIC_DIR .'lib/highlight/highlight.php';
} elseif (isset($prismatic_options_general['library']) && $prismatic_options_general['library'] === 'plain') {
require_once PRISMATIC_DIR .'lib/plain/plain.php';
}
}
function prismatic_encode($text) {
$output = '';
$split = preg_split("/(<code[^>]*>.*<\/code>)/Us", $text, -1, PREG_SPLIT_DELIM_CAPTURE);
$count = count($split);
for ($i = 0; $i < $count; $i++) {
$content = $split[$i];
if (preg_match("/^<code([^>]*)>(.*)<\/code>/Us", $content, $code)) {
$atts = str_replace(array("'", "\""), "%%", $code[1]);
$content = '[prismatic_encoded'. $atts .']'. base64_encode($code[2]) .'[/prismatic_encoded]';
}
$output .= $content;
}
return $output;
}
function prismatic_decode($text, $replace = false) {
$output = '';
$split = preg_split("/(\[prismatic_encoded.*\].*\[\/prismatic_encoded\])/Us", $text, -1, PREG_SPLIT_DELIM_CAPTURE);
$count = count($split);
for ($i = 0; $i < $count; $i++) {
$content = $split[$i];
if (preg_match("/^\[prismatic_encoded(.*)\](.*)\[\/prismatic_encoded\]/Us", $content, $code)) {
$content = base64_decode($code[2]);
if ($replace) {
$content = preg_replace("/\r/", "", $content);
$content = preg_replace("/^\s*?\n/", "\n", $content);
$content = preg_replace("/&/", "&amp;", $content);
$content = preg_replace("/</", "&lt;", $content);
$content = preg_replace("/>/", "&gt;", $content);
}
$atts = str_replace("%%", "\"", $code[1]);
$content = '<code'. $atts .'>'. $content .'</code>';
}
$output .= $content;
}
return $output;
}
function prismatic_decode_replace($text) {
return prismatic_decode($text, true);
}
function prismatic_check_admin($library, $filter) {
$settings = 'prismatic_options_'. $library;
global ${$settings};
$setting = 'filter_'. $filter;
$option = isset(${$settings}[$setting]) ? ${$settings}[$setting] : false;
if ($option === 'admin' || $option === 'both') return true;
return false;
}
function prismatic_check_front($library, $filter) {
$settings = 'prismatic_options_'. $library;
global ${$settings};
$setting = 'filter_'. $filter;
$option = isset(${$settings}[$setting]) ? ${$settings}[$setting] : false;
if ($option === 'front' || $option === 'both') return true;
return false;
}
function prismatic_add_filters() {
global $prismatic_options_general;
$library = (isset($prismatic_options_general['library'])) ? $prismatic_options_general['library'] : 'none';
if (prismatic_check_admin($library, 'content')) {
add_filter('content_save_pre', 'prismatic_encode', 33);
add_filter('content_save_pre', 'prismatic_decode', 77);
}
if (prismatic_check_front($library, 'content')) {
add_filter('the_content', 'prismatic_encode', 1);
add_filter('the_content', 'prismatic_decode_replace', 99);
}
if (prismatic_check_admin($library, 'excerpts')) {
add_filter('excerpt_save_pre', 'prismatic_encode', 33);
add_filter('excerpt_save_pre', 'prismatic_decode', 77);
}
if (prismatic_check_front($library, 'excerpts')) {
add_filter('the_excerpt', 'prismatic_encode', 1);
add_filter('the_excerpt', 'prismatic_decode_replace', 99);
}
if (prismatic_check_admin($library, 'comments')) {
add_filter('pre_comment_content', 'prismatic_encode', 3);
add_filter('pre_comment_content', 'prismatic_decode', 33);
add_filter('comment_save_pre', 'prismatic_encode', 33);
add_filter('comment_save_pre', 'prismatic_decode', 77);
}
if (prismatic_check_front($library, 'comments')) {
add_filter('comment_text', 'prismatic_encode', 1);
add_filter('comment_text', 'prismatic_decode_replace', 99);
}
}