1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
<?php
/**
*
* Parses for table markup.
*
* @category Text
*
* @package Text_Wiki
*
* @author Paul M. Jones <pmjones@php.net>
*
* @license LGPL
*
* @version $Id: Table.php,v 1.3 2005/02/23 17:38:29 pmjones Exp $
*
*/
/**
*
* Parses for table markup.
*
* This class implements a Text_Wiki_Parse to find source text marked as a
* set of table rows, where a line start and ends with double-pipes (||)
* and uses double-pipes to separate table cells. The rows must be on
* sequential lines (no blank lines between them) -- a blank line
* indicates the beginning of a new table.
*
* @category Text
*
* @package Text_Wiki
*
* @author Paul M. Jones <pmjones@php.net>
*
*/
class Text_Wiki_Parse_Table extends Text_Wiki_Parse {
/**
*
* The regular expression used to parse the source text and find
* matches conforming to this rule. Used by the parse() method.
*
* @access public
*
* @var string
*
* @see parse()
*
*/
var $regex = '/\n((\|\|).*)(\n)(?!(\|\|))/Us';
/**
*
* Generates a replacement for the matched text.
*
* Token options are:
*
* 'type' =>
* 'table_start' : the start of a bullet list
* 'table_end' : the end of a bullet list
* 'row_start' : the start of a number list
* 'row_end' : the end of a number list
* 'cell_start' : the start of item text (bullet or number)
* 'cell_end' : the end of item text (bullet or number)
*
* 'cols' => the number of columns in the table (for 'table_start')
*
* 'rows' => the number of rows in the table (for 'table_start')
*
* 'span' => column span (for 'cell_start')
*
* 'attr' => column attribute flag (for 'cell_start')
*
* @access public
*
* @param array &$matches The array of matches from parse().
*
* @return A series of text and delimited tokens marking the different
* table elements and cell text.
*
*/
function process(&$matches)
{
// our eventual return value
$return = '';
// the number of columns in the table
$num_cols = 0;
// the number of rows in the table
$num_rows = 0;
// rows are separated by newlines in the matched text
$rows = explode("\n", $matches[1]);
// loop through each row
foreach ($rows as $row) {
// increase the row count
$num_rows ++;
// start a new row
$return .= $this->wiki->addToken(
$this->rule,
array('type' => 'row_start')
);
// cells are separated by double-pipes
$cell = explode("||", $row);
// get the number of cells (columns) in this row
$last = count($cell) - 1;
// is this more than the current column count?
// (we decrease by 1 because we never use cell zero)
if ($last - 1 > $num_cols) {
// increase the column count
$num_cols = $last - 1;
}
// by default, cells span only one column (their own)
$span = 1;
// ignore cell zero, and ignore the "last" cell; cell zero
// is before the first double-pipe, and the "last" cell is
// after the last double-pipe. both are always empty.
for ($i = 1; $i < $last; $i ++) {
// if there is no content at all, then it's an instance
// of two sets of || next to each other, indicating a
// span.
if ($cell[$i] == '') {
// add to the span and loop to the next cell
$span += 1;
continue;
} else {
// this cell has content.
// find any special "attr"ibute cell markers
if (substr($cell[$i], 0, 2) == '> ') {
// right-align
$attr = 'right';
$cell[$i] = substr($cell[$i], 2);
} elseif (substr($cell[$i], 0, 2) == '= ') {
// center-align
$attr = 'center';
$cell[$i] = substr($cell[$i], 2);
} elseif (substr($cell[$i], 0, 2) == '< ') {
// left-align
$attr = 'left';
$cell[$i] = substr($cell[$i], 2);
} elseif (substr($cell[$i], 0, 2) == '~ ') {
$attr = 'header';
$cell[$i] = substr($cell[$i], 2);
} else {
$attr = null;
}
// start a new cell...
$return .= $this->wiki->addToken(
$this->rule,
array (
'type' => 'cell_start',
'attr' => $attr,
'span' => $span
)
);
// ...add the content...
$return .= trim($cell[$i]);
// ...and end the cell.
$return .= $this->wiki->addToken(
$this->rule,
array (
'type' => 'cell_end',
'attr' => $attr,
'span' => $span
)
);
// reset the span.
$span = 1;
}
}
// end the row
$return .= $this->wiki->addToken(
$this->rule,
array('type' => 'row_end')
);
}
// wrap the return value in start and end tokens
$return =
$this->wiki->addToken(
$this->rule,
array(
'type' => 'table_start',
'rows' => $num_rows,
'cols' => $num_cols
)
)
. $return .
$this->wiki->addToken(
$this->rule,
array(
'type' => 'table_end'
)
);
// we're done!
return "\n$return\n\n";
}
}
?>