WebSVN - PHPX - Diff - Rev 15 and 16 - /trunk/footnotes.class.php


<?php

/**
 * A footnote list contains {@link #Footnote Footnotes}
 *
 * @author Thomas 'PointedEars' Lahn &lt;php@PointedEars.de&gt;
 */
class FootnoteList
{
  /**
   * The footnotes of this list
   *
   * @var Array
   */
  protected $footnotes;
 
  /**
   * Last used number sign for a footnote
   *
   * @var int
   */
  protected $lastNumberSign;
 
  protected $defaultPrefix;
  protected $defaultSuffix;
 
  protected $makeTooltip;
 
  public function __construct($defaultPrefix = '', $defaultSuffix = '', $makeTooltip = false)
  {
    $this->clear();
    $this->defaultPrefix = $defaultPrefix;
    $this->defaultSuffix = $defaultSuffix;
    $this->makeTooltip = $makeTooltip;
  }
 
  /**
   * Clears the footnote list
   */
  public function clear()
  {
    $this->footnotes = array();
    $this->lastNumberSign = 0;
  }
 
  /**
   * Adds a footnote to the list (unless already specified)
   *
   * @param string $name
   *   Name of the footnote
   * @param string $sign
   *   Sign of the footnote.  If empty, the next available number is used.
   * @param string $text
   *   Text for the footnote
   * @return string
   *   The code for printing the footnote reference.
   */
  public function add($name, $sign = '', $text = '', $tooltip = null)
  {
    $footnotes =& $this->footnotes;
   
    if (!isset($footnotes[$name]))
    {
      if (!$sign)
      {
        $sign = ++$this->lastNumberSign;
      }
      else if (is_int($sign))
      {
        $this->lastNumberSign = $sign;
      }
     
      $footnotes[$name] = new Footnote($name, $sign, $text,
        $this->defaultSuffix, $this->defaultPrefix,
        $this->makeTooltip ? ($tooltip !== null ? $tooltip : $text) : '');
    }
   
    return $footnotes[$name]->getRef();
  }
 
  /**
   * Prints the list of footnotes
   */
  public function printMe()
  {
    $footnotes =& $this->footnotes;
   
    function cmp($a, $b)
    {
      if ($a->sign < $b->sign)
      {
        return -1;
      }
      else if ($a->sign > $b->sign)
      {
        return 1;
      }
      else
      {
        return 0;
      }
    }
   
    uasort($footnotes, 'cmp');
   
    ?><table class="footnotes">
    <?php
   
    foreach ($footnotes as $name => &$footnote)
    {
      $footnote->printMe();
    }
   
    ?></table><?php
  }
 
  /**
   * Prints the list of footnotes and clears the list in memory
   */
  public function flush()
  {
    $this->printMe();
    $this->clear();
  }
}

/**
 * A footnote to be used in a {@link #FootnoteList "footnote list"}
 *
 * @author Thomas 'PointedEars' Lahn &lt;php@PointedEars.de&gt;
 */
class Footnote
{
  /**
   * The name of this footnote
   *
   * @var string
   */
  protected $name = '';
 
  /**
   * The sign used for referring to this footnote
   *
   * @var string
   */
  protected $sign = '';
 
  /**
   * The text for this footnote
   *
   * @var string
   */
  protected $text = '';
 
  protected $prefix = '';
  protected $suffix = '';
  protected $tooltip = '';
 
  /**
   * The number of times this footnote has been referred
   *
   * @var int
   */
  protected $references = 0;
 
  /**
   * Creates a footnote
   *
   * @param string $name
   *   The name of this footnote
   * @param string $sign
   *   The sign that should be used for referring to this footnote
   * @param string $text
   *   The text for this footnote
   * @param string $suffix
   *   The suffix for this footnote
   * @param string $prefix
   *   The prefix for this footnote
   */
  public function __construct($name, $sign, $text, $suffix = '', $prefix = '',
                                 $tooltip = '')
  {
    $this->name = $name;
    $this->sign = $sign;
    $this->text = $text;
    $this->suffix = $suffix;
    $this->prefix = $prefix;
    $this->tooltip = $tooltip;
  }

  /**
   * Universal getter
   *
   * @param string $name
   *   Name of the property to be read-accessed.  Currently only 'sign'
   *   is supported.
   * @throws InvalidArgumentException if a non-existing property is accessed
   * @return mixed
   *   Property value
   */
  public function __get($name)
  {
    if ($name === 'sign')
    {
      return $this->sign;
    }
    else
    {
      throw new InvalidArgumentException(
        'No such property ' . get_class($this) . "::\$$name");
    }
  }
 
  /**
   * Returns the reference for this footnote
   *
   * @return string
   */
  public function getRef()
  {
    $s = $this->name;
   
    $ret = "<sup><a href='#footnote-{$s}'"
      . ($this->references === 0
        ? " name='fn-{$s}-ref' id='fn-{$s}-ref'"
        : '')
      . ' class="footnote"'
      . ($this->tooltip
        ? ' title="'
          . preg_replace('/"/', '&quot;',
              trim(reduceWhitespace(strip_tags($this->tooltip))))
          . '"'
        : '')
      . ">{$this->prefix}{$this->sign}{$this->suffix}"
      . '</a></sup>';

    ++$this->references;
                         
    return $ret;
  }
 
  /**
   * Prints this footnote in a footnote list
   */
  public function printMe()
  {
    $s = $this->name;
   
    echo "  <tr>
        <th><sup><a name='footnote-{$s}' id='footnote-{$s}' class='footnote'
          >{$this->sign}</a></sup><a
 
          href='#fn-{$s}-ref' class='backref'>&#8593;</a></th>
        <td>{$this->text}</td>
      </tr>
    ";
  }
}

?>

Rev 15	Rev 16
1	<?php	1	<?php
2		2
3	/**	3	/**
4	* A footnote list contains {@link #Footnote Footnotes}	4	* A footnote list contains {@link #Footnote Footnotes}
5	*	5	*
6	* @author Thomas 'PointedEars' Lahn <php@PointedEars.de>	6	* @author Thomas 'PointedEars' Lahn <php@PointedEars.de>
7	*/	7	*/
8	class FootnoteList	8	class FootnoteList
9	{	9	{
10	/**	10	/**
11	* The footnotes of this list	11	* The footnotes of this list
12	*	12	*
13	* @var Array	13	* @var Array
14	*/	14	*/
15	protected $footnotes;	15	protected $footnotes;
16		16
17	/**	17	/**
18	* Last used number sign for a footnote	18	* Last used number sign for a footnote
19	*	19	*
20	* @var int	20	* @var int
21	*/	21	*/
22	protected $lastNumberSign;	22	protected $lastNumberSign;
23		23
24	protected $defaultPrefix;	24	protected $defaultPrefix;
25	protected $defaultSuffix;	25	protected $defaultSuffix;
26		26
27	protected $makeTooltip;	27	protected $makeTooltip;
28		28
29	public function __construct($defaultPrefix = '', $defaultSuffix = '', $makeTooltip = false)	29	public function __construct($defaultPrefix = '', $defaultSuffix = '', $makeTooltip = false)
30	{	30	{
31	$this->clear();	31	$this->clear();
32	$this->defaultPrefix = $defaultPrefix;	32	$this->defaultPrefix = $defaultPrefix;
33	$this->defaultSuffix = $defaultSuffix;	33	$this->defaultSuffix = $defaultSuffix;
34	$this->makeTooltip = $makeTooltip;	34	$this->makeTooltip = $makeTooltip;
35	}	35	}
36		36
37	/**	37	/**
38	* Clears the footnote list	38	* Clears the footnote list
39	*/	39	*/
40	public function clear()	40	public function clear()
41	{	41	{
42	$this->footnotes = array();	42	$this->footnotes = array();
43	$this->lastNumberSign = 0;	43	$this->lastNumberSign = 0;
44	}	44	}
45		45
46	/**	46	/**
47	* Adds a footnote to the list (unless already specified)	47	* Adds a footnote to the list (unless already specified)
48	*	48	*
49	* @param string $name	49	* @param string $name
50	* Name of the footnote	50	* Name of the footnote
51	* @param string $sign	51	* @param string $sign
52	* Sign of the footnote. If empty, the next available number is used.	52	* Sign of the footnote. If empty, the next available number is used.
53	* @param string $text	53	* @param string $text
54	* Text for the footnote	54	* Text for the footnote
55	* @return string	55	* @return string
56	* The code for printing the footnote reference.	56	* The code for printing the footnote reference.
57	*/	57	*/
58	public function add($name, $sign = '', $text = '', $tooltip = null)	58	public function add($name, $sign = '', $text = '', $tooltip = null)
59	{	59	{
60	$footnotes =& $this->footnotes;	60	$footnotes =& $this->footnotes;
61		61
62	if (!isset($footnotes[$name]))	62	if (!isset($footnotes[$name]))
63	{	63	{
64	if (!$sign)	64	if (!$sign)
65	{	65	{
66	$sign = ++$this->lastNumberSign;	66	$sign = ++$this->lastNumberSign;
67	}	67	}
68	else if (is_int($sign))	68	else if (is_int($sign))
69	{	69	{
70	$this->lastNumberSign = $sign;	70	$this->lastNumberSign = $sign;
71	}	71	}
72		72
73	$footnotes[$name] = new Footnote($name, $sign, $text,	73	$footnotes[$name] = new Footnote($name, $sign, $text,
74	$this->defaultSuffix, $this->defaultPrefix,	74	$this->defaultSuffix, $this->defaultPrefix,
75	$this->makeTooltip ? ($tooltip !== null ? $tooltip : $text) : '');	75	$this->makeTooltip ? ($tooltip !== null ? $tooltip : $text) : '');
76	}	76	}
77		77
78	return $footnotes[$name]->getRef();	78	return $footnotes[$name]->getRef();
79	}	79	}
80		80
81	/**	81	/**
82	* Prints the list of footnotes	82	* Prints the list of footnotes
83	*/	83	*/
84	public function printMe()	84	public function printMe()
85	{	85	{
86	$footnotes =& $this->footnotes;	86	$footnotes =& $this->footnotes;
87		87
88	function cmp($a, $b)	88	function cmp($a, $b)
89	{	89	{
90	if ($a->sign < $b->sign)	90	if ($a->sign < $b->sign)
91	{	91	{
92	return -1;	92	return -1;
93	}	93	}
94	else if ($a->sign > $b->sign)	94	else if ($a->sign > $b->sign)
95	{	95	{
96	return 1;	96	return 1;
97	}	97	}
98	else	98	else
99	{	99	{
100	return 0;	100	return 0;
101	}	101	}
102	}	102	}
103		103
104	uasort($footnotes, 'cmp');	104	uasort($footnotes, 'cmp');
105		105
106	?><table class="footnotes">	106	?><table class="footnotes">
107	<?php	107	<?php
108		108
109	foreach ($footnotes as $name => &$footnote)	109	foreach ($footnotes as $name => &$footnote)
110	{	110	{
111	$footnote->printMe();	111	$footnote->printMe();
112	}	112	}
113		113
114	?></table><?php	114	?></table><?php
115	}	115	}
116		116
117	/**	117	/**
118	* Prints the list of footnotes and clears the list in memory	118	* Prints the list of footnotes and clears the list in memory
119	*/	119	*/
120	public function flush()	120	public function flush()
121	{	121	{
122	$this->printMe();	122	$this->printMe();
123	$this->clear();	123	$this->clear();
124	}	124	}
125	}	125	}
126		126
127	/**	127	/**
128	* A footnote to be used in a {@link #FootnoteList "footnote list"}	128	* A footnote to be used in a {@link #FootnoteList "footnote list"}
129	*	129	*
130	* @author Thomas 'PointedEars' Lahn <php@PointedEars.de>	130	* @author Thomas 'PointedEars' Lahn <php@PointedEars.de>
131	*/	131	*/
132	class Footnote	132	class Footnote
133	{	133	{
134	/**	134	/**
135	* The name of this footnote	135	* The name of this footnote
136	*	136	*
137	* @var string	137	* @var string
138	*/	138	*/
139	protected $name = '';	139	protected $name = '';
140		140
141	/**	141	/**
142	* The sign used for referring to this footnote	142	* The sign used for referring to this footnote
143	*	143	*
144	* @var string	144	* @var string
145	*/	145	*/
146	protected $sign = '';	146	protected $sign = '';
147		147
148	/**	148	/**
149	* The text for this footnote	149	* The text for this footnote
150	*	150	*
151	* @var string	151	* @var string
152	*/	152	*/
153	protected $text = '';	153	protected $text = '';
154		154
155	protected $prefix = '';	155	protected $prefix = '';
156	protected $suffix = '';	156	protected $suffix = '';
157	protected $tooltip = '';	157	protected $tooltip = '';
158		158
159	/**	159	/**
160	* The number of times this footnote has been referred	160	* The number of times this footnote has been referred
161	*	161	*
162	* @var int	162	* @var int
163	*/	163	*/
164	protected $references = 0;	164	protected $references = 0;
165		165
166	/**	166	/**
167	* Creates a footnote	167	* Creates a footnote
168	*	168	*
169	* @param string $name	169	* @param string $name
170	* The name of this footnote	170	* The name of this footnote
171	* @param string $sign	171	* @param string $sign
172	* The sign that should be used for referring to this footnote	172	* The sign that should be used for referring to this footnote
173	* @param string $text	173	* @param string $text
174	* The text for this footnote	174	* The text for this footnote
175	* @param string $suffix	175	* @param string $suffix
176	* The suffix for this footnote	176	* The suffix for this footnote
177	* @param string $prefix	177	* @param string $prefix
178	* The prefix for this footnote	178	* The prefix for this footnote
179	*/	179	*/
180	public function __construct($name, $sign, $text, $suffix = '', $prefix = '',	180	public function __construct($name, $sign, $text, $suffix = '', $prefix = '',
181	$tooltip = '')	181	$tooltip = '')
182	{	182	{
183	$this->name = $name;	183	$this->name = $name;
184	$this->sign = $sign;	184	$this->sign = $sign;
185	$this->text = $text;	185	$this->text = $text;
186	$this->suffix = $suffix;	186	$this->suffix = $suffix;
187	$this->prefix = $prefix;	187	$this->prefix = $prefix;
188	$this->tooltip = $tooltip;	188	$this->tooltip = $tooltip;
189	}	189	}
190		190
191	/**	191	/**
192	* Universal getter	192	* Universal getter
193	*	193	*
194	* @param string $name	194	* @param string $name
195	* Name of the property to be read-accessed. Currently only 'sign'	195	* Name of the property to be read-accessed. Currently only 'sign'
196	* is supported.	196	* is supported.
197	* @throws InvalidArgumentException if a non-existing property is accessed	197	* @throws InvalidArgumentException if a non-existing property is accessed
198	* @return mixed	198	* @return mixed
199	* Property value	199	* Property value
200	*/	200	*/
201	public function __get($name)	201	public function __get($name)
202	{	202	{
203	if ($name === 'sign')	203	if ($name === 'sign')
204	{	204	{
205	return $this->sign;	205	return $this->sign;
206	}	206	}
207	else	207	else
208	{	208	{
209	throw new InvalidArgumentException(	209	throw new InvalidArgumentException(
210	'No such property ' . get_class($this) . "::\$$name");	210	'No such property ' . get_class($this) . "::\$$name");
211	}	211	}
212	}	212	}
213		213
214	/**	214	/**
215	* Returns the reference for this footnote	215	* Returns the reference for this footnote
216	*	216	*
217	* @return string	217	* @return string
218	*/	218	*/
219	public function getRef()	219	public function getRef()
220	{	220	{
221	$s = $this->name;	221	$s = $this->name;
222		222
223	$ret = "<sup><a href='#footnote-{$s}'"	223	$ret = "<sup><a href='#footnote-{$s}'"
224	. ($this->references === 0	224	. ($this->references === 0
225	? " name='fn-{$s}-ref' id='fn-{$s}-ref'"	225	? " name='fn-{$s}-ref' id='fn-{$s}-ref'"
226	: '')	226	: '')
227	. ' class="footnote"'	227	. ' class="footnote"'
228	. ($this->tooltip	228	. ($this->tooltip
229	? ' title="'	229	? ' title="'
230	. preg_replace('/"/', '"',	230	. preg_replace('/"/', '"',
231	trim(reduceWhitespace(strip_tags($this->tooltip))))	231	trim(reduceWhitespace(strip_tags($this->tooltip))))
232	. '"'	232	. '"'
233	: '')	233	: '')
234	. ">{$this->prefix}{$this->sign}{$this->suffix}"	234	. ">{$this->prefix}{$this->sign}{$this->suffix}"
235	. '</a></sup>';	235	. '</a></sup>';
236		236
237	++$this->references;	237	++$this->references;
238		238
239	return $ret;	239	return $ret;
240	}	240	}
241		241
242	/**	242	/**
243	* Prints this footnote in a footnote list	243	* Prints this footnote in a footnote list
244	*/	244	*/
245	public function printMe()	245	public function printMe()
246	{	246	{
247	$s = $this->name;	247	$s = $this->name;
248		248
249	echo " <tr>	249	echo " <tr>
250	<th><sup><a name='footnote-{$s}' id='footnote-{$s}' class='footnote'	250	<th><sup><a name='footnote-{$s}' id='footnote-{$s}' class='footnote'
251	>{$this->sign}</a></sup><a	251	>{$this->sign}</a></sup><a
252	href='#fn-{$s}-ref' name='footnote-{$s}' id='footnote-{$s}'	-
253	class='backref'>↑</a></th>	252	href='#fn-{$s}-ref' class='backref'>↑</a></th>
254	<td>{$this->text}</td>	253	<td>{$this->text}</td>
255	</tr>	254	</tr>
256	";	255	";
257	}	256	}
258	}	257	}
259		258
260	?>	259	?>

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