root/trunk/plugins/acronyms.php

<?php
Class acronyms extends MvBlog_plugin implements MvBlog_pluginiface {
    /* variables */
    public $name    = "Acronyms";
    public $author  = "Michiel van Baak";
    public $license = "GPL";
    public $website = "http://www.mvblog.org";
    public $description = "Acronym replacement module. Searches for know Acronyms and put <acronym> tag around them.";

    private $_mvblog;
    private $_acronyms;

    /* methods */
    /* __construct {{{ */
    public function __construct(&$mvblog) {
        $this->addHook("text_output", "acroreplace");
        $this->_mvblog =& $mvblog;
    }
    /* }}} */
    /* activate {{{ */
    public function activate() {
        /* get all acronyms from database */
        $res =& $this->_mvblog->db->query("SELECT id,acronym,description FROM acronyms ORDER BY UPPER(acronym)");
        if (PEAR::isError($res)) {
            die($res->getMessage());
        }
        while ($row = $res->fetchRow(MDB2_FETCHMODE_ASSOC)) {
            $this->_acronyms[$row["id"]] = array($row["acronym"], $row["description"]);
        }
    }
    /* }}} */
    /* deactivate {{{ */
    public function deactivate() {
        unset($this->_acronyms);
    }
    /* }}} */
    /* acroreplace {{{ */
    public function acroreplace($text) {
        foreach ($this->_acronyms as $acro) {
            $acronym     = $acro[0];
            $description = $acro[1];
            //replace all the supplied acronyms
            $text = preg_replace("|(?!<[^<>]*?)(?<![?./&])\b$acronym\b(?!:)(?![^<>]*?>)|imsU","<acronym class=\"blog_acro\" title=\"$description\">$acronym</acronym>" , $text);
            //allow user to overwrite acronym replacing by putting the term between $ signs
            $text = preg_replace("|[$]<acronym class=\"blog_acro\" title=\"$description\">$acronym</acronym>[$]|imsU" , "$acronym" , $text);
        }
        return trim($text);
    }
    /* }}} */
    /* show_settings {{{ */
    public function show_settings() {

        ?><a href="index.php?action=edit_plugin_setting&amp;plugin=acronyms&id=0"><?php echo gettext("create new"); ?></a><?php
        foreach ($this->_acronyms as $id => $acro) {
            ?>
            <div class="log_post">
                <div class="log_post_head">
                    <h1 class="log_post_h1"><a href="?action=edit_plugin_setting&plugin=acronyms&amp;id=<?php echo $id; ?>"><?php echo stripslashes($acro[0]); ?></a></h1>
                </div>
                <div class="log_post_body">
                    <div class="log_post_normal">
                        <?php echo stripslashes($acro[1]); ?>
                    </div>
                </div>
                <div class="log_post_foot">
                </div>
            </div>
            <?php
        }
    }
    /* }}} */
    /* edit_setting {{{ */
    public function edit_setting($requestdata) {
        $id = $requestdata["id"];
        if ($id == 0) {
            $acro["id"]          = 0;
            $acro["acronym"]     = "acronym name";
            $acro["description"] = "acronym description";
        } else {
            $acro = array(
                "id"          => $id,
                "acronym"     => $this->_acronyms[$id][0],
                "description" => $this->_acronyms[$id][1]
            );
        }
        ?>
        <form name="acronym" method="post" action="index.php">
        <input type="hidden" name="action" value="save_plugin_setting" />
        <input type="hidden" name="plugin" value="acronyms" />
        <input type="hidden" name="acro[action]" id="act" value="" />
        <input type="hidden" name="acro[id]" value="<?php echo $acro["id"]; ?>" />
        <div class="log_post">
            <div class="log_post_head">
                <h1 class="log_post_h1"><input type="text" name="acro[acronym]" value="<?php echo stripslashes($acro["acronym"]); ?>" /></h1>
            </div>
            <div class="log_post_body">
                <input type="text" name="acro[description]" value="<?php echo stripslashes($acro["description"]); ?>" style="width: 500px;" /><br />
                <input type="submit" value="<?php echo gettext("save"); ?>" />
                <?php if ($id) { ?>
                    <input type="button" value="<?php echo gettext("delete"); ?>" onClick="document.getElementById('act').value='delete';document.forms.acronym.submit();" />
                <?php } ?>
            </div>
            <div class="log_postfoot">
            </div>
        </div>
        </form>
        <?php
    }
    /* }}} */
    /* save_setting {{{ */
    public function save_setting($requestdata) {
        $acro = $requestdata["acro"];
        if ($acro["action"] == "delete") {
            /* remove acro */
            unset($this->_acronyms[$acro["id"]]);
            $sql = sprintf("DELETE FROM acronyms WHERE id=%d", $acro["id"]);
            $this->_mvblog->db->exec($sql);
        } else {
            if ($acro["id"]) {
                $this->_acronyms[$acro["id"]] = array($acro["acronym"], $acro["description"]);
                /* store it in db */
                $sql = sprintf("UPDATE acronyms SET acronym='%s', description='%s' WHERE id=%d", $acro["acronym"], $acro["description"], $acro["id"]);
                $this->_mvblog->db->exec($sql);
            } else {
                $sql = sprintf("INSERT INTO acronyms (acronym, description) values ('%s', '%s')", $acro["acronym"], $acro["description"]);
                $res = $this->_mvblog->db->exec($sql);
                /* fetch the same record so we can get the id */
                $sql = sprintf("SELECT id FROM acronyms WHERE acronym='%s' AND description='%s'", $acro["acronym"], $acro["description"]);
                $res = $this->_mvblog->db->query($sql);
                $row = $res->fetchRow();
                $this->_acronyms[$row[0]] = array($acro["acronym"], $acronym["description"]);
            }
        }
        $this->show_settings();
    }
    /* }}} */
}
?>