PHP - Html Transfer Code 超文本转换码,市面上这东西已经很滥(多)了,不过是这几天自己实践了一下~~~~
支持 多重嵌套 和 同标签嵌套,混合高亮显示(还有一点小问题)
自我感觉便于修改和扩充~~~
<?php
/**
*
$htc_list = array(
"B" => "\\1",
"I" => "\\1",
"U" => "\\1",
"CENTER" => "
引用: | |
|
\\1 |
\\1 |
\\1 |
Download The Music |
Download The Movie |
Download The Movie |
$htc_list_att = array(
"ALIGN" => "
$htc_list_spl = array(
"PHP" => "exec:get_highlight_html('\\1', 'php')",
"CSS" => "exec:get_highlight_html('\\1', 'css')",
"HTML" => "exec:get_highlight_html('\\1', 'html')",
"SCRIPT" => "exec:get_highlight_html('\\1', 'script')",
"CODE" => "exec:get_code_html('\\1')",
"EXECUTE" => "\\1",
);
function get_highlight_html($str, $type = "php") {
$type = strtolower($type);
$type_func = $type."_highlight";
$type = strtoupper($type);
$result = "
高亮显示 {$type} 代码: | |
|
function php_highlight($str) {
$str = str_replace("\\\"","\"",$str);
return highlight_string($str, true);
}
function css_highlight($str, $nl = true) {
$color_1 = "red";
$color_2 = "green";
$color_3 = "blue";
$str = str_replace("\\\"","\"",$str);
$str = str_replace("\r", "", $str);
preg_match_all("/[\\\\.\w#: ]+\{[^\{\}]+\}/", $str, $arr_css);
$arr_css = $arr_css[0];
for($i=0; $i<count($arr_css); $i++) {
$head = preg_replace("/([\\\\.\w#: ]+\{)[^\{\}]+\}/", "\\1".($nl?"
\n":""), $arr_css[$i]);
$unit = preg_replace("/[\\\\.\w#: ]+\{([^\{\}]+)\}/", "\\1", $arr_css[$i]);
$unit_list = preg_split("/;\s/", $unit);
$unit = "\n";
for($j=0; $j<count($unit_list); $j++) {
if(strlen($unit_list[$j])>0)
$unit .= " " . preg_replace("/\s([\w\-]+)\s:\s(.)/e", "'<font color=\'{$color_2}\'>\\1 : <font color=\'{$color_3}\'>'.htmlspecialchars('\\2').' ; '", $unit_list[$j]) . ($nl?"
\n":"\n");
}
$arr_css[$i] = $head . $unit . "}";
}
return join(($nl?"\n
\n":"\n\n"), $arr_css);
}
function script_highlight_note($str, $mode = true) {
$color_note = "gray";
$str = str_replace("\\\"","\"",$str);
$str = preg_replace("/(.)<\/font>/isU", "\\1", $str);
$str = $mode?"/{$str}*/":"//{$str}";
return "{$str}";
}
function script_highlight($str, $nl = true) {
$color_1 = "red";
$color_2 = "blue";
$color_3 = "brown";
$color_4 = "green";
$str = str_replace("\\\"","\"",$str);
$str = htmlspecialchars($str);
$str = str_replace("=","&equal;",$str);
$str = str_replace("|","&vertical;",$str);
$keywords = array(
"{$color_1}" => array("null", "true", "false", "NaN"),
"{$color_2}" => array("var", "for", "if", "else", "switch", "case", "function", "loop", "continue", "break", "<", ">", "!&equal;", "&equal;&equal;", "&equal;", "&&", "&vertical;&vertical;"),
"{$color_3}" => array("window", "self", "this", "event", "document", "opener", "Navigator", "Math", "Array", "String", "Object", "Function", "Number"),
);
foreach($keywords as $key => $value) {
for($i=0; $i<count($value); $i++) {
$str = preg_replace("/(\W)(".$value[$i].")(\W)/", "\\1\\2\\3", $str);
}
}
$str = preg_replace("/(\.|\s)([a-z]+)\(/i" ,"\\1\\2(", $str);
$str = preg_replace("/\.(\w+)(?!\()/i" ,".\\1", $str);
$str = preg_replace("/\/\/([^\n])\n/e" ,"script_highlight_note('\\1', false)", $str);
$str = preg_replace("/\/\*(.?)\*\//es" ,"script_highlight_note('\\1')", $str);
$str = str_replace("\t", " ", $str);
$str = str_replace("&equal;","=",$str);
$str = str_replace("&vertical;","|",$str);
return $nl?nl2br($str):$str;
}
function html_highlight_attr($att) {
$color_1 = "red";
$color_2 = "brown";
$color_3 = "black";
$att = str_replace("\\\"","\"",$att);
$att = preg_replace("/=\s('|\")([^'\"]+)\\1/eU","'=\\1'.preg_replace('/\s+/','|:s:|','\\2').'\\1'",$att);
$att = str_replace("\\\"","\"",$att);
$att .= " ";
preg_match_all("/[a-z:\/\-]+(=(['\"]?).[^\\\\]{1}\\2?)?\s+/iU", $att, $att_list);
$att_list = $att_list[0];
for($i=0; $i<count($att_list); $i++) {
if(empty($att_list[$i])) continue;
$att_list[$i] = trim($att_list[$i]);
$att_list[$i] = preg_replace("/([^=]+)([=]?)(['\"]?)(.*)(\\3)/", "\\1</ font>\\2</ font>\\3\\4</ font>\\3", $att_list[$i]);
}
return str_replace("|:s:|", " ", join(" ", $att_list));
}
function html_highlight($str) {
$color_1 = "red";
$color_2 = "blue";
$color_3 = "gray";
$str = str_replace("\\\"","\"",$str);
preg_match_all("/<script([^>])>(.)<\/script>/isU", $str, $arr_tmp);
$arr_script = $arr_tmp[0];
for($i=0; $i<count($arr_script); $i++) {
$str = str_replace($arrscript[$i], "
::script{$i}::
", $str);
$arr_script[$i] = preg_replace("/<script([^>])>(.)<\/script>/iseU", "'<font color=\'{$color_2}\'><SCRIPT '.html_highlight_attr('\\1').'>
'.script_highlight(str_replace('\\\"','\"','\\2'), false).'<font color=\'{$color_2}\'>'", $arr_script[$i]);
}
$str = preg_replace("/(<textarea[^>]>)(.)(<\/textarea>)/ieU" ,"'\\1'.htmlspecialchars('\\2').'\\3'", $str);
$str = preg_replace("/<!\-\-(.)\-\->/seU" ,"''", $str);
$str = preg_replace("/<style([^>])>(.)<\/style>/isU" ,"<!style\\1>\\2</style!>", $str);
$str = preg_replace("/<([a-z:]+)\s(.?)( \/|\/)?>/ise" ,"'<font color=\'{$color_2}\'><\\1 '.html_highlight_attr('\\2').'\\3></ font>'", $str);
$str = preg_replace("/<(\/[a-z:]+)>/i" ,"<\\1>", $str);
$str = preg_replace("/<(!\-\-.\-\-)>/sU" ,"<\\1>", $str);
$str = preg_replace("/<!style([^>])>(.)<\/style!>/iseU" ,"'<font color=\'{$color_2}\'><STYLE '.html_highlight_attr('\\1').'>
'.css_highlight(str_replace('\\\"','\"','\\2'), false).'
<font color=\'{$color_2}\'>'", $str);
for($i=0; $i<count($arr_script); $i++) {
$str = strreplace("
::script{$i}::
", $arr_script[$i], $str);
}
$str = str_replace("</ font>", "", $str);
$str = str_replace("</ b>", "", $str);
$str = str_replace(" >", ">", $str);
$str = str_replace(" "," ",$str);
$str = str_replace("\t"," ",$str);
return nl2br($str);
}
function get_file_pic($filename) {
global $root_path;
$ext = str_replace(".","",strrchr($filename,"."));
$pic = $root_path."images/mime_type/{$ext}.gif";
return file_exists($pic)?"$pic":$root_path."images/mime_type/attch.gif";
}
function get_dl_html($filename, $str = "") {
return " ".(empty($str)?basename($filename):$str)."";
}
function get_attach_html($filename, $id) {
return " $filename";
}
function get_vote_html($vote_idx, $message = ""){
global $db_host, $db_user, $db_pass, $db_name;
$db = new DB_Manager($db_host, $db_user, $db_pass);
$db->Connect();
$db->SelectDB($db_name);
$db->Query("select * from mnms_poll where id=".$vote_idx);
$record = $db->GetRS();
$str = "";
$db->close();
unset($db);
if($record) {
$username = "dummy";
$if_vote = !(strpos($record[vote_user], "|{$username}|")===false)
strpos($record[vote_user], "|".GetIp()."|");
$str .= "
function get_code_html($str) {
$str = str_replace("\\\"","\"",$str);
return "
(提示:可以先修改部分代码) |
function get_list_html($content, $type = "") {
$content = preg_replace("/(<br \/>)?[\r\n]+/", "\n", $content);
$content = preg_replace("/[\r\n]+/", "\n", $content);
$content = preg_replace("/^[\n](.)[\n]*$/m", "\\1", $content);
$content = str_replace("\n", "
function html_trans($str) {
$search = array("&", "'", "\"", "<", ">", " ", "\t");
$replace = array("&", "'", """, "<", ">", " ", " ");
return nl2br(str_replace($search, $replace, $str));
}
function link_url($str) {
$str = preg_replace("/((http|ftp|mms|rtsp|pnm|mailto):\/\/[\w@:\.\/\?=&;#\-%]+)/i", "\\1", $str);
$str = preg_replace("/(\w+@(\w+\.)+[\w]{2,3})/i", "\\1", $str);
$str = preg_replace("/(href|src)='<a href=('.+')>[^<]+<\/a>'/iU", "\\1=\\2", $str);
return $str;
}
function htc2html_loop($str) {
global $htc_list, $htc_list_att;
foreach($htc_list as $key => $value) {
if(substr($value,0,5)=="exec:"){
$str = preg_replace("/\$key\?\])))\[\/$key\]/iexsU", substr($value,5), $str);
} else {
$str = preg_replace("/\$key\?\]))?)\[\/$key\]/ixsU", "$value", $str);
}
}
foreach($htc_list_att as $key => $value) {
if(substr($value,0,5)=="exec:"){
$str = preg_replace("/\[$key\s?=\s?([^\]]+)\]((.(?!\[$key(\s?=\s?([^\]]+))?\])))\[\/$key\]/iesxU", substr($value,5), $str);
} else {
$str = preg_replace("/\[$key\s?=\s?([^\]]+)\]((.(?!\[$key(\s?=\s?([^\]]+))?\])))\[\/$key\]/isxU", "$value", $str);
}
}
return $str;
}
function htc2html($str, $trans_url = true , $loop = 3) {
global $htc_list_spl;
$str = preg_replace("/(\[\w+\])\s/ixs","\\1",$str);
$str = preg_replace("/\s(\[\/\w+\])/ixs","\\1",$str);
foreach($htc_list_spl as $key => $value) {
preg_match_all("/\$key\\[\/$key\]/ixsU", $str, $arr_tmp);
$arr_spl[$key] = $arr_tmp[0];
for($i=0; $i<count($arr_spl[$key]); $i++) {
$str = str_replace($arrspl[$key][$i], "
::{$key}{$i}::
", $str);
if(substr($value,0,5)=="exec:"){
$arr_spl[$key][$i] = preg_replace("/\$key\\[\/$key\]/iexsU", substr($value,5), $arr_spl[$key][$i]);
} else {
$arr_spl[$key][$i] = preg_replace("/\$key\\[\/$key\]/ixsU", "$value", $arr_spl[$key][$i]);
}
}
}
$str = html_trans($str);
while($loop-- > 0) {
if(!preg_match("/\[(\w+)(\s?=\s?([^\]]+))?\](.*)\[\/\\1\]/isU", $str)) break;
$str = htc2html_loop($str);
}
if($trans_url) $str = link_url($str);
foreach($htc_list_spl as $key => $value) {
for($i=0; $i<count($arr_spl[$key]); $i++) {
$str = strreplace("
::{$key}{$i}::
", $arr_spl[$key][$i], $str);
}
}
return $str;
}
?>
使用方法:
echo htc2html($str);
OK 了~~~~