1 | <?php |
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2 | /** |
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3 | * Smarty shared plugin |
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4 | * |
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5 | * @package Smarty |
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6 | * @subpackage PluginsShared |
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7 | */ |
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8 | |
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9 | if(!function_exists('smarty_mb_wordwrap')) { |
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10 | |
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11 | /** |
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12 | * Wrap a string to a given number of characters |
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13 | * |
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14 | * @link http://php.net/manual/en/function.wordwrap.php for similarity |
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15 | * @param string $str the string to wrap |
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16 | * @param int $width the width of the output |
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17 | * @param string $break the character used to break the line |
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18 | * @param boolean $cut ignored parameter, just for the sake of |
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19 | * @return string wrapped string |
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20 | * @author Rodney Rehm |
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21 | */ |
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22 | function smarty_mb_wordwrap($str, $width=75, $break="\n", $cut=false) |
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23 | { |
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24 | // break words into tokens using white space as a delimiter |
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25 | $tokens = preg_split('!(\s)!S' . Smarty::$_UTF8_MODIFIER, $str, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE); |
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26 | $length = 0; |
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27 | $t = ''; |
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28 | $_previous = false; |
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29 | |
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30 | foreach ($tokens as $_token) { |
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31 | $token_length = mb_strlen($_token, Smarty::$_CHARSET); |
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32 | $_tokens = array($_token); |
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33 | if ($token_length > $width) { |
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34 | // remove last space |
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35 | $t = mb_substr($t, 0, -1, Smarty::$_CHARSET); |
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36 | $_previous = false; |
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37 | $length = 0; |
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38 | |
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39 | if ($cut) { |
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40 | $_tokens = preg_split('!(.{' . $width . '})!S' . Smarty::$_UTF8_MODIFIER, $_token, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE); |
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41 | // broken words go on a new line |
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42 | $t .= $break; |
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43 | } |
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44 | } |
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45 | |
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46 | foreach ($_tokens as $token) { |
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47 | $_space = !!preg_match('!^\s$!S' . Smarty::$_UTF8_MODIFIER, $token); |
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48 | $token_length = mb_strlen($token, Smarty::$_CHARSET); |
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49 | $length += $token_length; |
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50 | |
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51 | if ($length > $width) { |
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52 | // remove space before inserted break |
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53 | if ($_previous && $token_length < $width) { |
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54 | $t = mb_substr($t, 0, -1, Smarty::$_CHARSET); |
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55 | } |
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56 | |
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57 | // add the break before the token |
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58 | $t .= $break; |
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59 | $length = $token_length; |
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60 | |
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61 | // skip space after inserting a break |
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62 | if ($_space) { |
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63 | $length = 0; |
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64 | continue; |
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65 | } |
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66 | } else if ($token == "\n") { |
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67 | // hard break must reset counters |
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68 | $_previous = 0; |
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69 | $length = 0; |
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70 | } else { |
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71 | // remember if we had a space or not |
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72 | $_previous = $_space; |
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73 | } |
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74 | // add the token |
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75 | $t .= $token; |
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76 | } |
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77 | } |
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78 | |
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79 | return $t; |
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80 | } |
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81 | |
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82 | } |
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83 | ?> |
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