linux php 语法加亮,JS实现的PHP语法加亮函数

怼烎@ 2022-10-21 13:56 161阅读 0赞

function highlight\_string( str )

//add a new prototype function to array

Array.prototype.exist = function(v)

for(k=0;k

if(this\[k\].toLowerCase() == v.toLowerCase())

return true;

return false;

//base variable

var operator = "><=,()\[\].+-\*/!&|^~?\{\};:";

var keyword  = \['and','or','\_\_FILE\_\_','exception','\_\_LINE\_\_','array','as','break','case','class','const',

'continue','declare','default','die','do','echo','else','elseif','empty','enddeclare','endfor',

'endforeach','endif','endswitch','endwhile','eval','exit','extends','for','foreach','function',

'global','if','include','include\_once','isset','list','new','old\_function','print','require',

'require\_once','return', 'static','switch','unset','var','while','\_\_FUNCTION\_\_','\_\_CLASS\_\_',

'\_\_METHOD\_\_','true','false','null'\];

var inString = false;

var inSLComment = false; //single line comment

var inMLComment = false; //multiline comment

var delimiter = null;

var startPos = null;

var word  = "";

var res = "";

//start to format

for(i=0;i

if( inString ) //we are in string

//the word cache will be clear

if(word != "") //we check the word cache if it the key word

if( keyword.exist(word) ) //its php reversed keyword,rend color

res+= rendColor(word, 'keyword');

else

res+= word;

word = "";

//alert('inString,pos is '+ i+',char is '+c );

fromPos = startPos+1;

while(1)

//we find the end of current string

p = str.indexOf( delimiter, fromPos );

//we got the end of the code

if( p == -1 )

curstr = str.substr( startPos );

res += rendColor( curstr, 'string' );

i = str.length;

break;

if( p != -1 && str.charAt(p-1) != "//" )

i = p+1;

curstr  = str.substring(startPos, i ); //get the current string

res += rendColor( curstr, 'string' ); //rend color for it and add it to the result

inString = false; //we have go out of the string

startPos = null;

break;

else

fromPos = p+1;

if( inSLComment ) //we are in Single line comment

if(word != "") //we check the word cache if it the key word

if( keyword.exist(word) ) //its php reversed keyword,rend color

res+= rendColor(word, 'keyword');

else

res+= word;

word = "";

//alert('inSLComment,pos is '+ i+',char is '+c );

p = str.indexOf( "/n", i );

if( p != -1 ) //we find the end of line

i = p;

curstr = str.substring( startPos, p );

res += rendColor( curstr, 'comment' );

startPos = null;

inSLComment = false;

else

curstr = str.substr( startPos );

res += rendColor( curstr, 'comment' );

i = str.length;

if( inMLComment ) //we are in multiline comment

if(word != "") //we check the word cache if it the key word

if( keyword.exist(word) ) //its php reversed keyword,rend color

res+= rendColor(word, 'keyword');

else

res+= word;

word = "";

//alert('inMLComment,pos is '+ i+',char is '+c );

p = str.indexOf( "\*/", startPos+2 );

if( p != -1 ) //we find the end of line

i = p+2;

curstr = str.substring(startPos, i );

res += rendColor( curstr, 'comment' );

startPos = null;

inMLComment = false;

else

curstr = str.substr( startPos );

res += rendColor( curstr, 'comment' );

i = str.length;

var c  = str.charAt(i); //current char

var nc = str.charAt(i+1);//next char

switch( c )

case '/':

if( nc == '\*' ) // we go into the multiline comment

inMLComment = true;

startPos = i;

if( nc == "/" ) //we are in single line comment

inSLComment = true;

startPos = i;

//alert('we are in switch,pos is '+i+', and char is'+ c);

break;

case '\#':

inSLComment = true; //we go into the single line comment

startPos = i;

break;

case '"':

inString = true;

delimiter = '"';

startPos = i;

break;

case "'":

inString = true;

delimiter = "'";

startPos = i;

break;

default:

if( /\[/w$\]/.test(c) )  //the keyword only contains continuous common char

word += c;   //cache the current char

else

if(word != "") //we check the word cache if it the key word

if( keyword.exist(word) ) //its php reversed keyword,rend color

res+= rendColor(word, 'keyword');

else

res+= word;

word = "";

//now the current char is not common char, we process it

if( operator.indexOf(c) != -1 ) // the char is a operator

res += rendColor(c, 'operator' );

else

res += c;

break;

$t = "    ";

$b = " ";

res = res.replace(/^( +)/g, function($1)\{c = $1.length;str="";while(--c>=0)str+=$b;return str\});

res = res.replace(/(/t| )\{2,\}/g, function($0)\{c=$0.length;str="";while(--c>=0)\{if($0.charAt(c)=='/t')str+=$t;else str+=$b;\}return str;\});

res = res.replace(//t/g,$t);

res = res.replace(//n/g, "/n

");

res = '

1.  ' + res + '

//alert(res);

return res;

//对字符串中的HTML代码编码

function HTMLEncode( str )

str = str.replace(/&/g, '&');

str = str.replace(/

str = str.replace(/>/g, '>');

return str;

//根据字符串所属类型渲染不同的着色

function rendColor( str, type )

var commentColor = "\#FF8000";

var stringColor  = "\#DD0000";

var operatorColor= "\#007700";

var keywordColor = "\#007700";

var commonColor  = "\#0000BB";

var useColor  = null;

str = HTMLEncode( str );

//we will rend what color?

switch( type )

case 'comment':

useColor  = commentColor;

break;

case 'string':

useColor = stringColor;

break;

case 'operator':

useColor  = operatorColor;

break;

case 'keyword':

useColor  = keywordColor;

break;

default:

useColor  = commonColor;

break;

if( str.indexOf("/n") != -1 ) //there are more than one line

arr = str.split("/n");

for(j=0;j

arr\[j\] = ""+ arr\[j\] + "";

return arr.join("/n");

else

str = ""+ str + "";

return str;

linux php 语法加亮,JS实现的PHP语法加亮函数

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