--- /dev/null
+<?php
+
+namespace Drupal\typogrify;
+
+/**
+ * Class \Drupal\typogrify\Typogrify.
+ */
+class Typogrify {
+
+ /**
+ * Enable custom styling of ampersands.
+ *
+ * Wraps apersands in html with '<span class="amp">', so they can be
+ * styled with CSS. Ampersands are also normalized to '&. Requires
+ * ampersands to have whitespace or an ' ' on both sides.
+ *
+ * It won't mess up & that are already wrapped, in entities or URLs
+ *
+ * @param string
+ *
+ * @return string
+ */
+ public static function amp($text) {
+ $amp_finder = "/(\s| )(&|&|&\#38;|&)(\s| )/";
+
+ return preg_replace($amp_finder, '\\1<span class="amp">&</span>\\3', $text);
+ }
+
+ /**
+ * Puts a   before and after an &ndash or —.
+ *
+ * Dashes may have whitespace or an `` `` on both sides
+ *
+ * @param string
+ *
+ * @return string
+ */
+ public static function dash($text) {
+ $dash_finder = "/(\s| | )*(—|–|–|–|—|—)(\s| | )*/";
+
+ return preg_replace($dash_finder, ' \\2 ', $text);
+ }
+
+ /**
+ * Helper method for caps method - used for preg_replace_callback.
+ */
+ public static function _cap_wrapper($matchobj) {
+ if (!empty($matchobj[2])) {
+ return sprintf('<span class="caps">%s</span>', $matchobj[2]);
+ }
+ else {
+ $mthree = $matchobj[3];
+ if (($mthree{strlen($mthree) - 1}) == ' ') {
+ $caps = substr($mthree, 0, -1);
+ $tail = ' ';
+ }
+ else {
+ $caps = $mthree;
+ $tail = $matchobj[4];
+ }
+
+ return sprintf('<span class="caps">%s</span>%s', $caps, $tail);
+ }
+ }
+
+ /**
+ * Stylable capitals.
+ *
+ * Wraps multiple capital letters in ``<span class="caps">``
+ * so they can be styled with CSS.
+ *
+ * Uses the smartypants tokenizer to not screw with HTML or with tags it
+ * shouldn't.
+ */
+ public static function caps($text) {
+ $tokens = SmartyPants::tokenizeHtml($text);
+ $result = array();
+ $in_skipped_tag = FALSE;
+
+ $cap_finder = "/(
+ (\b[[\p{Lu}=\d]* # Group 2: Any amount of caps and digits
+ [[\p{Lu}][[\p{Lu}\d]* # A cap string much at least include two caps (but they can have digits between them)
+ (?:&)? # allowing ampersand in caps.
+ [[\p{Lu}'\d]*[[\p{Lu}\d]) # Any amount of caps and digits
+ | (\b[[\p{Lu}]+\.\s? # OR: Group 3: Some caps, followed by a '.' and an optional space
+ (?:[[\p{Lu}]+\.\s?)+) # Followed by the same thing at least once more
+ (\s|\b|$|[)}\]>]))/xu";
+
+ foreach ($tokens as $token) {
+ if ($token[0] == 'tag') {
+ // Don't mess with tags.
+ $result[] = $token[1];
+ $close_match = preg_match(SmartyPants::SMARTYPANTS_TAGS_TO_SKIP, $token[1]);
+ if ($close_match) {
+ $in_skipped_tag = true;
+ }
+ else {
+ $in_skipped_tag = false;
+ }
+ }
+ else {
+ if ($in_skipped_tag) {
+ $result[] = $token[1];
+ }
+ else {
+ $result[] = preg_replace_callback($cap_finder, 'self::_cap_wrapper', $token[1]);
+ }
+ }
+ }
+
+ return implode('', $result);
+ }
+
+ /**
+ * Helper method for initial_quotes method - used for preg_replace_callback.
+ */
+ public static function _quote_wrapper($matchobj) {
+ if (!empty($matchobj[7])) {
+ $classname = 'dquo';
+ $quote = $matchobj[7];
+ }
+ else {
+ $classname = 'quo';
+ $quote = $matchobj[8];
+ }
+
+ return sprintf('%s<span class="%s">%s</span>', $matchobj[1], $classname, $quote);
+ }
+
+ /**
+ * initial_quotes.
+ *
+ * Wraps initial quotes in ``class="dquo"`` for double quotes or
+ * ``class="quo"`` for single quotes. Works in these block tags ``(h1-h6, p, li)``
+ * and also accounts for potential opening inline elements ``a, em, strong, span, b, i``
+ * Optionally choose to apply quote span tags to Gullemets as well.
+ */
+ public static function initial_quotes($text, $do_guillemets = false) {
+ $quote_finder = "/((<(p|h[1-6]|li)[^>]*>|^) # start with an opening p, h1-6, li or the start of the string
+ \s* # optional white space!
+ (<(a|em|span|strong|i|b)[^>]*>\s*)*) # optional opening inline tags, with more optional white space for each.
+ ((\"|“|&\#8220;)|('|‘|&\#8216;)) # Find me a quote! (only need to find the left quotes and the primes)
+ # double quotes are in group 7, singles in group 8
+ /ix";
+
+ if ($do_guillemets) {
+ $quote_finder = "/((<(p|h[1-6]|li)[^>]*>|^) # start with an opening p, h1-6, li or the start of the string
+ \s* # optional white space!
+ (<(a|em|span|strong|i|b)[^>]*>\s*)*) # optional opening inline tags, with more optional white space for each.
+ ((\"|“|&\#8220;|\xAE|&\#171;|«)|('|‘|&\#8216;)) # Find me a quote! (only need to find the left quotes and the primes) - also look for guillemets (>> and << characters))
+ # double quotes are in group 7, singles in group 8
+ /ix";
+ }
+
+ return preg_replace_callback($quote_finder, 'self::_quote_wrapper', $text);
+ }
+
+ /**
+ * widont.
+ *
+ * Replaces the space between the last two words in a string with `` ``
+ * Works in these block tags ``(h1-h6, p, li)`` and also accounts for
+ * potential closing inline elements ``a, em, strong, span, b, i``
+ *
+ * Empty HTMLs shouldn't error
+ */
+ public static function widont($text) {
+ // This regex is a beast, tread lightly
+ $widont_finder = "/([^<>\s]+|<\/span>) # ensure more than 1 word
+ (\s+) # the space to replace
+ ([^<>\s]+ # must be flollowed by non-tag non-space characters
+ \s* # optional white space!
+ (<\/(a|em|span|strong|i|b)[^>]*>\s*)* # optional closing inline tags with optional white space after each
+ ((<\/(p|h[1-6]|li|dt|dd)>)|$)) # end with a closing p, h1-6, li or the end of the string
+ /x";
+
+ return preg_replace($widont_finder, '$1 $3', $text);
+ }
+
+ /**
+ * typogrify.
+ *
+ * The super typography filter.
+ * Applies the following filters: widont, smartypants, caps, amp, initial_quotes
+ * Optionally choose to apply quote span tags to Gullemets as well.
+ */
+ public static function filter($text, $do_guillemets = FALSE) {
+ $text = self::amp($text);
+ $text = self::widont($text);
+ $text = SmartyPants::process($text);
+ $text = self::caps($text);
+ $text = self::initial_quotes($text, $do_guillemets);
+ $text = self::dash($text);
+
+ return $text;
+ }
+
+}
projects / yaffs-website / blobdiff