xref: /plugin/struct/renderer/csv.php (revision b22abfe9262a7f884fa8c3f24095863ade84cc13) 
1<?php
2
3/**
4 * CSV export of tabular data
5 *
6 * @link https://tools.ietf.org/html/rfc4180
7 * @link http://csvlint.io/
8 */
9class renderer_plugin_struct_csv extends Doku_Renderer {
10
11    protected $first = false;
12
13    /**
14     * Determine if out put is wanted right now
15     *
16     * @return bool
17     */
18    function _doOutput() {
19        global $INPUT;
20
21        if(
22            !isset($this->info['struct_table_hash']) or
23            $this->info['struct_table_hash'] != $INPUT->str('hash')
24        ) {
25            return false;
26        }
27
28        if(!empty($this->info['struct_table_meta'])) {
29            return false;
30        }
31
32        return true;
33    }
34
35    /**
36     * Our own format
37     *
38     * @return string
39     */
40    function getFormat() {
41        return 'struct_csv';
42    }
43
44    /**
45     * Set proper headers
46     */
47    function document_start() {
48        global $ID;
49        $filename = noNS($ID) . '.csv';
50        $headers = array(
51            'Content-Type' => 'text/csv',
52            'Content-Disposition' => 'attachment; filename="' . $filename . '";'
53        );
54        p_set_metadata($ID, array('format' => array('struct' => $headers)));
55        // don't cache
56        $this->nocache();
57    }
58
59    /**
60     * Opening a table row prevents the separator for the first following cell
61     */
62    function tablerow_open() {
63        if(!$this->_doOutput()) return;
64        $this->first = true;
65    }
66
67    /**
68     * Output the delimiter (unless it's the first cell of this row) and the text wrapper
69     *
70     * @param int $colspan ignored
71     * @param null $align ignored
72     * @param int $rowspan ignored
73     */
74    function tablecell_open($colspan = 1, $align = null, $rowspan = 1) {
75        if(!$this->_doOutput()) return;
76        if(!$this->first) {
77            $this->doc .= ",";
78        }
79        $this->first = false;
80
81        $this->doc .= '"';
82    }
83
84    /**
85     * Close the text wrapper
86     */
87    function tablecell_close() {
88        $this->doc .= '"';
89    }
90
91    /**
92     * Alias for tablecell_open
93     *
94     * @param int $colspan ignored
95     * @param null $align ignored
96     * @param int $rowspan ignored
97     */
98    function tableheader_open($colspan = 1, $align = null, $rowspan = 1) {
99        $this->tablecell_open($colspan, $align, $rowspan);
100    }
101
102    /**
103     * Alias for tablecell_close
104     */
105    function tableheader_close() {
106        $this->tablecell_close();
107    }
108
109    /**
110     * Add CRLF newline at the end of one line
111     */
112    function tablerow_close() {
113        if(!$this->_doOutput()) return;
114        $this->doc .= "\r\n";
115    }
116
117    /**
118     * Outputs cell content
119     *
120     * @param string $text
121     */
122    function cdata($text) {
123        if(!$this->_doOutput()) return;
124        if($text === '') return;
125
126        $this->doc .= str_replace('"', '""', $text);
127    }
128
129    /**
130     * Uses cdata to output the title
131     *
132     * @param string $link
133     * @param null $title
134     */
135    function internallink($link, $title = null) {
136        $this->cdata($title);
137    }
138
139}
140