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<? |
<?php |
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function str_length(string $str, bool $skip_ctrl_seq = false) : int |
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{ |
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$len = strlen($str); |
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$ret = 0; |
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|
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for ($i = 0; $i < $len; $i++) |
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{ |
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$c = $str[$i]; |
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if ($c == "\r" || $c == "\7") // skip |
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{ |
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continue; |
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} |
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|
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if ($skip_ctrl_seq && $c == "\033" && $i + 1 < $len && $str[$i + 1] == "[") // Skip control sequence |
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{ |
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for ($i = $i + 2; |
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$i < $len && (ctype_digit($str[$i]) || $str[$i] == ';' || $str[$i] == '?'); |
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$i++) |
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; |
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|
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if ($i < $len && $str[$i] == 'm') // valid |
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{ |
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// skip |
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} |
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else if ($i < $len && ctype_alpha($str[$i])) |
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{ |
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// unsupported ANSI CSI command |
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} |
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else |
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{ |
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$i--; |
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} |
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|
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continue; |
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} |
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|
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// Process UTF-8 Chinese characters |
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$v1 = ord($c); |
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if ($v1 & 0x80) //head of multi-byte character |
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{ |
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$v2 = ($v1 & 0x70) << 1; |
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while ($v2 & 0x80) |
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{ |
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$i++; |
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$c .= $str[$i]; |
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$v2 = ($v2 & 0x7f) << 1; |
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} |
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|
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function split_line($str,$prefix="",$width=76) |
$ret += 2; |
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} |
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else |
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{ |
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$ret++; |
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} |
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} |
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|
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return $ret; |
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} |
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function split_line(string $str, string $prefix = "", int $width = PHP_INT_MAX, int $lines_limit = PHP_INT_MAX, string $end_of_line = "\n") : string |
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{ |
{ |
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if ($width<=0) |
if ($width <= 0) |
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return $str; |
{ |
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$width = PHP_INT_MAX; |
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} |
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|
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$result = ""; |
$result = ""; |
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$len = mb_strlen($str,'UTF-8'); |
$len = strlen($str); |
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$prefix_len = mb_strlen($prefix,'UTF-8'); |
$prefix_len = str_length($prefix); |
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|
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$lines_count = 0; |
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|
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$line = $prefix; |
$line = $prefix; |
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$line_len = $prefix_len; |
$line_len = $prefix_len; |
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for($i=0;$i<$len;$i++) |
for ($i = 0; $i < $len && $lines_count < $lines_limit; $i++) |
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{ |
{ |
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$c = mb_substr($str,$i,1,'UTF-8'); |
$c = $str[$i]; |
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$line.=$c; |
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|
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// Each UTF-8 CJK character should use two character length for display |
// Skip special characters |
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$line_len += (strlen($c) <= 2 ? 1 : 2); |
if ($c == "\r" || $c == "\7") |
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{ |
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continue; |
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} |
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|
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if ($line_len >= $width) |
if ($c == "\n") |
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{ |
{ |
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$result .= ($line . "\n"); |
if ($lines_count + 1 >= $lines_limit) |
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{ |
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break; |
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} |
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|
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$result .= ($line . $end_of_line); |
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$lines_count++; |
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$line = $prefix; |
$line = $prefix; |
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$line_len = $prefix_len; |
$line_len = $prefix_len; |
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continue; |
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} |
} |
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} |
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$result .= ($line . "\n"); |
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return $result; |
// Process UTF-8 Chinese characters |
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} |
$v1 = ord($c); |
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if ($v1 & 0x80) //head of multi-byte character |
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{ |
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$v2 = ($v1 & 0x70) << 1; |
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while ($v2 & 0x80) |
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{ |
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$i++; |
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$c .= $str[$i]; |
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$v2 = ($v2 & 0x7f) << 1; |
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} |
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|
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// Each UTF-8 CJK character should use two character length for display |
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if ($line_len + 2 > $width) |
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{ |
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if ($lines_count + 1 >= $lines_limit) |
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{ |
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break; |
| 119 |
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} |
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|
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$result .= ($line . $end_of_line); |
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$lines_count++; |
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$line = $prefix; |
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$line_len = $prefix_len; |
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} |
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$line_len += 2; |
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} |
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else |
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{ |
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$line_len++; |
| 131 |
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} |
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|
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function str_process($str,$prefix="",$width=76) |
if ($line_len > $width) |
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{ |
{ |
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$result = ""; |
if ($lines_count + 1 >= $lines_limit) |
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{ |
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$lines = explode("\n",str_replace("\r\n","\n",$str)); |
break; |
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} |
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|
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foreach($lines as $tmp => $line) |
$result .= ($line . $end_of_line); |
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{ |
$lines_count++; |
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$result .= split_line($line,$prefix,$width); |
$line = $prefix; |
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$line_len = $prefix_len + 1; |
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} |
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|
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$line .= $c; |
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} |
} |
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return $result; |
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} |
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|
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function str_b_lines($str,$max_line=1) |
if ($lines_count < $lines_limit) |
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{ |
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$result = ""; |
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$l = 0; |
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$lines = explode("\n",str_replace("\r\n","\n",$str)); |
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foreach($lines as $tmp => $line) |
|
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{ |
{ |
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$result .= ($line."\n"); |
$result .= $line; |
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$l += (mb_strlen($line,'UTF-8')/128 + 1); |
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if ($l >= $max_line) |
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break; |
|
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} |
} |
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|
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return $result; |
return $result; |
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} |
} |
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?> |
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