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<? |
<? |
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function str_length($str) |
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function split_line($str,$pre="",$width=75) |
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{ |
{ |
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$lines = array(); |
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$lines_count = 0; |
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$len = strlen($str); |
$len = strlen($str); |
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$ret = 0; |
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$hz_ok = true; |
for ($i = 0; $i < $len; $i++) |
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$en_ok = true; |
{ |
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$c = $str[$i]; |
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if ($width<=0) |
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// Process UTF-8 Chinese characters |
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$v1 = ord($c); |
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if (($v1 & 0b10000000) == 0b10000000) //head of multi-byte character |
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{ |
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$v2 = ($v1 & 0b01111000) << 1; |
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while ($v2 & 0b10000000) |
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{ |
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$i++; |
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$v3 = $str[$i]; |
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$c .= $v3; |
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$v2 = ($v2 & 0b01111111 ) << 1; |
| 22 |
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} |
| 23 |
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$ret += 2; |
| 25 |
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} |
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else |
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{ |
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$ret++; |
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} |
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} |
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return $ret; |
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} |
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function split_line($str, $prefix = "", $width = 76, $lines_limit = PHP_INT_MAX) |
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{ |
| 37 |
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if ($width <= 0) |
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return $str; |
return $str; |
| 39 |
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$line = $pre; |
$result = ""; |
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$line_count = strlen($line); |
$len = strlen($str); |
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for($i=0;$i<$len;$i++) |
$prefix_len = str_length($prefix); |
| 43 |
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| 44 |
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$lines_count = 0; |
| 45 |
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| 46 |
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$line = $prefix; |
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$line_len = $prefix_len; |
| 48 |
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for ($i = 0; $i < $len && $lines_count < $lines_limit; $i++) |
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{ |
{ |
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$line.=$str[$i]; |
$c = $str[$i]; |
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$line_count++; |
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if (ord($str[$i])>127) |
// Skip special characters |
| 53 |
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if ($c == "\r" || $c == "\7") |
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{ |
{ |
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$hz_ok = (!$hz_ok); |
continue; |
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$en_ok = true; |
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| 56 |
} |
} |
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if (ord($str[$i])<=127) |
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| 58 |
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if ($c == "\n") |
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{ |
{ |
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$hz_ok = true; |
$result .= ($line . "\n"); |
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if ($str[$i] == " ") |
$lines_count++; |
| 62 |
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$line = $prefix; |
| 63 |
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$line_len = $prefix_len; |
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continue; |
| 65 |
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} |
| 66 |
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| 67 |
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// Process UTF-8 Chinese characters |
| 68 |
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$v1 = ord($c); |
| 69 |
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if (($v1 & 0b10000000) == 0b10000000) //head of multi-byte character |
| 70 |
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{ |
| 71 |
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$v2 = ($v1 & 0b01111000) << 1; |
| 72 |
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while ($v2 & 0b10000000) |
| 73 |
{ |
{ |
| 74 |
$en_ok = true; |
$i++; |
| 75 |
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$v3 = $str[$i]; |
| 76 |
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$c .= $v3; |
| 77 |
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$v2 = ($v2 & 0b01111111 ) << 1; |
| 78 |
} |
} |
| 79 |
else |
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| 80 |
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// Each UTF-8 CJK character should use two character length for display |
| 81 |
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if ($line_len + 2 > $width) |
| 82 |
{ |
{ |
| 83 |
$en_ok = false; |
if ($lines_count + 1 >= $lines_limit) |
| 84 |
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{ |
| 85 |
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break; |
| 86 |
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} |
| 87 |
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| 88 |
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$result .= ($line . "\n"); |
| 89 |
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$lines_count++; |
| 90 |
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$line = $prefix; |
| 91 |
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$line_len = $prefix_len; |
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} |
} |
| 93 |
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$line_len += 2; |
| 94 |
} |
} |
| 95 |
if ($line_count >= $width && $hz_ok && $en_ok) |
else |
| 96 |
{ |
{ |
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$lines[$lines_count++] = $line; |
$line_len++; |
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$line = $pre; |
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$line_count = strlen($line); |
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| 98 |
} |
} |
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} |
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$lines[$lines_count++] = $line; |
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$result = ""; |
$line .= $c; |
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for($i=0;$i<$lines_count;$i++) |
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{ |
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$result.=($lines[$i]."\r\n"); |
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} |
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return $result; |
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} |
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| 102 |
function str_process($str,$pre="",$width=75) |
if ($line_len >= $width) |
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{ |
{ |
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$result = ""; |
if ($lines_count + 1 >= $lines_limit) |
| 105 |
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{ |
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$lines = explode("\n",str_replace("\r\n","\n",$str)); |
break; |
| 107 |
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} |
| 108 |
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| 109 |
foreach($lines as $line) |
$result .= ($line . "\n"); |
| 110 |
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$lines_count++; |
| 111 |
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$line = $prefix; |
| 112 |
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$line_len = $prefix_len; |
| 113 |
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} |
| 114 |
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} |
| 115 |
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| 116 |
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if ($lines_count < $lines_limit) |
| 117 |
{ |
{ |
| 118 |
$result .= split_line($line,$pre,$width); |
$result .= $line; |
| 119 |
} |
} |
| 120 |
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return $result; |
return $result; |
| 122 |
} |
} |
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| 123 |
?> |
?> |
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