aboutsummaryrefslogtreecommitdiffhomepage
path: root/application
diff options
context:
space:
mode:
authorArthurHoaro <arthur@hoa.ro>2016-05-10 23:18:04 +0200
committerArthurHoaro <arthur@hoa.ro>2016-06-06 21:04:43 +0200
commit9ccca40189652e529732683abcdf54fcf775c9ec (patch)
tree9deda85d287dcba664bbba2f0bf9228e6118fbad /application
parentbb9ca54838e2f877635197541e8439171c83d5dc (diff)
downloadShaarli-9ccca40189652e529732683abcdf54fcf775c9ec.tar.gz
Shaarli-9ccca40189652e529732683abcdf54fcf775c9ec.tar.zst
Shaarli-9ccca40189652e529732683abcdf54fcf775c9ec.zip
Hashtag system
* Hashtag are auto-linked with a filter search * Supports unicode * Compatible with markdown (excluded in code blocks)
Diffstat (limited to 'application')
-rw-r--r--application/LinkDB.php2
-rw-r--r--application/LinkFilter.php33
-rw-r--r--application/LinkUtils.php75
-rw-r--r--application/Utils.php55
4 files changed, 108 insertions, 57 deletions
diff --git a/application/LinkDB.php b/application/LinkDB.php
index b1072e07..929a6b0f 100644
--- a/application/LinkDB.php
+++ b/application/LinkDB.php
@@ -409,7 +409,7 @@ You use the community supported version of the original Shaarli project, by Seba
409 $searchterm = !empty($filterRequest['searchterm']) ? escape($filterRequest['searchterm']) : ''; 409 $searchterm = !empty($filterRequest['searchterm']) ? escape($filterRequest['searchterm']) : '';
410 410
411 // Search tags + fullsearch. 411 // Search tags + fullsearch.
412 if (empty($type) && ! empty($searchtags) && ! empty($searchterm)) { 412 if (! empty($searchtags) && ! empty($searchterm)) {
413 $type = LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT; 413 $type = LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT;
414 $request = array($searchtags, $searchterm); 414 $request = array($searchtags, $searchterm);
415 } 415 }
diff --git a/application/LinkFilter.php b/application/LinkFilter.php
index e693b284..d4fe28df 100644
--- a/application/LinkFilter.php
+++ b/application/LinkFilter.php
@@ -28,6 +28,11 @@ class LinkFilter
28 public static $FILTER_DAY = 'FILTER_DAY'; 28 public static $FILTER_DAY = 'FILTER_DAY';
29 29
30 /** 30 /**
31 * @var string Allowed characters for hashtags (regex syntax).
32 */
33 public static $HASHTAG_CHARS = '\p{Pc}\p{N}\p{L}\p{Mn}';
34
35 /**
31 * @var array all available links. 36 * @var array all available links.
32 */ 37 */
33 private $links; 38 private $links;
@@ -263,8 +268,10 @@ class LinkFilter
263 for ($i = 0 ; $i < count($searchtags) && $found; $i++) { 268 for ($i = 0 ; $i < count($searchtags) && $found; $i++) {
264 // Exclusive search, quit if tag found. 269 // Exclusive search, quit if tag found.
265 // Or, tag not found in the link, quit. 270 // Or, tag not found in the link, quit.
266 if (($searchtags[$i][0] == '-' && in_array(substr($searchtags[$i], 1), $linktags)) 271 if (($searchtags[$i][0] == '-'
267 || ($searchtags[$i][0] != '-') && ! in_array($searchtags[$i], $linktags) 272 && $this->searchTagAndHashTag(substr($searchtags[$i], 1), $linktags, $link['description']))
273 || ($searchtags[$i][0] != '-')
274 && ! $this->searchTagAndHashTag($searchtags[$i], $linktags, $link['description'])
268 ) { 275 ) {
269 $found = false; 276 $found = false;
270 } 277 }
@@ -307,6 +314,28 @@ class LinkFilter
307 } 314 }
308 315
309 /** 316 /**
317 * Check if a tag is found in the taglist, or as an hashtag in the link description.
318 *
319 * @param string $tag Tag to search.
320 * @param array $taglist List of tags for the current link.
321 * @param string $description Link description.
322 *
323 * @return bool True if found, false otherwise.
324 */
325 protected function searchTagAndHashTag($tag, $taglist, $description)
326 {
327 if (in_array($tag, $taglist)) {
328 return true;
329 }
330
331 if (preg_match('/(^| )#'. $tag .'([^'. self::$HASHTAG_CHARS .']|$)/mui', $description) > 0) {
332 return true;
333 }
334
335 return false;
336 }
337
338 /**
310 * Convert a list of tags (str) to an array. Also 339 * Convert a list of tags (str) to an array. Also
311 * - handle case sensitivity. 340 * - handle case sensitivity.
312 * - accepts spaces commas as separator. 341 * - accepts spaces commas as separator.
diff --git a/application/LinkUtils.php b/application/LinkUtils.php
index da04ca97..eeca631f 100644
--- a/application/LinkUtils.php
+++ b/application/LinkUtils.php
@@ -91,5 +91,80 @@ function count_private($links)
91 foreach ($links as $link) { 91 foreach ($links as $link) {
92 $cpt = $link['private'] == true ? $cpt + 1 : $cpt; 92 $cpt = $link['private'] == true ? $cpt + 1 : $cpt;
93 } 93 }
94
94 return $cpt; 95 return $cpt;
95} 96}
97
98/**
99 * In a string, converts URLs to clickable links.
100 *
101 * @param string $text input string.
102 * @param string $redirector if a redirector is set, use it to gerenate links.
103 *
104 * @return string returns $text with all links converted to HTML links.
105 *
106 * @see Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
107 */
108function text2clickable($text, $redirector = '')
109{
110 $regex = '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si';
111
112 if (empty($redirector)) {
113 return preg_replace($regex, '<a href="$1">$1</a>', $text);
114 }
115 // Redirector is set, urlencode the final URL.
116 return preg_replace_callback(
117 $regex,
118 function ($matches) use ($redirector) {
119 return '<a href="' . $redirector . urlencode($matches[1]) .'">'. $matches[1] .'</a>';
120 },
121 $text
122 );
123}
124
125/**
126 * Auto-link hashtags.
127 *
128 * @param string $description Given description.
129 * @param string $indexUrl Root URL.
130 *
131 * @return string Description with auto-linked hashtags.
132 */
133function hashtag_autolink($description, $indexUrl = '')
134{
135 /*
136 * To support unicode: http://stackoverflow.com/a/35498078/1484919
137 * \p{Pc} - to match underscore
138 * \p{N} - numeric character in any script
139 * \p{L} - letter from any language
140 * \p{Mn} - any non marking space (accents, umlauts, etc)
141 */
142 $regex = '/(^|\s)#([\p{Pc}\p{N}\p{L}\p{Mn}]+)/mui';
143 $replacement = '$1<a href="'. $indexUrl .'?addtag=$2" title="Hashtag $2">#$2</a>';
144 return preg_replace($regex, $replacement, $description);
145}
146
147/**
148 * This function inserts &nbsp; where relevant so that multiple spaces are properly displayed in HTML
149 * even in the absence of <pre> (This is used in description to keep text formatting).
150 *
151 * @param string $text input text.
152 *
153 * @return string formatted text.
154 */
155function space2nbsp($text)
156{
157 return preg_replace('/(^| ) /m', '$1&nbsp;', $text);
158}
159
160/**
161 * Format Shaarli's description
162 *
163 * @param string $description shaare's description.
164 * @param string $redirector if a redirector is set, use it to gerenate links.
165 *
166 * @return string formatted description.
167 */
168function format_description($description, $redirector = '', $indexUrl = '') {
169 return nl2br(space2nbsp(hashtag_autolink(text2clickable($description, $redirector), $indexUrl)));
170}
diff --git a/application/Utils.php b/application/Utils.php
index da521cce..7d7eaffd 100644
--- a/application/Utils.php
+++ b/application/Utils.php
@@ -198,59 +198,6 @@ function is_session_id_valid($sessionId)
198} 198}
199 199
200/** 200/**
201 * In a string, converts URLs to clickable links.
202 *
203 * @param string $text input string.
204 * @param string $redirector if a redirector is set, use it to gerenate links.
205 *
206 * @return string returns $text with all links converted to HTML links.
207 *
208 * @see Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
209 */
210function text2clickable($text, $redirector)
211{
212 $regex = '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si';
213
214 if (empty($redirector)) {
215 return preg_replace($regex, '<a href="$1">$1</a>', $text);
216 }
217 // Redirector is set, urlencode the final URL.
218 return preg_replace_callback(
219 $regex,
220 function ($matches) use ($redirector) {
221 return '<a href="' . $redirector . urlencode($matches[1]) .'">'. $matches[1] .'</a>';
222 },
223 $text
224 );
225}
226
227/**
228 * This function inserts &nbsp; where relevant so that multiple spaces are properly displayed in HTML
229 * even in the absence of <pre> (This is used in description to keep text formatting).
230 *
231 * @param string $text input text.
232 *
233 * @return string formatted text.
234 */
235function space2nbsp($text)
236{
237 return preg_replace('/(^| ) /m', '$1&nbsp;', $text);
238}
239
240/**
241 * Format Shaarli's description
242 * TODO: Move me to ApplicationUtils when it's ready.
243 *
244 * @param string $description shaare's description.
245 * @param string $redirector if a redirector is set, use it to gerenate links.
246 *
247 * @return string formatted description.
248 */
249function format_description($description, $redirector = false) {
250 return nl2br(space2nbsp(text2clickable($description, $redirector)));
251}
252
253/**
254 * Sniff browser language to set the locale automatically. 201 * Sniff browser language to set the locale automatically.
255 * Note that is may not work on your server if the corresponding locale is not installed. 202 * Note that is may not work on your server if the corresponding locale is not installed.
256 * 203 *
@@ -273,4 +220,4 @@ function autoLocale($headerLocale)
273 } 220 }
274 } 221 }
275 setlocale(LC_ALL, $attempts); 222 setlocale(LC_ALL, $attempts);
276} \ No newline at end of file 223}