[javascript]代码库
// javascript format script
// copyright Stephen Chapman 22 April 2007
var kw = ['abstract', 'as', 'boolean', 'break', 'byte', 'case', 'catch', 'char', 'class', 'const', 'continue', 'default', 'delete', 'do', 'double', 'else', 'enum', 'export', 'extends', 'false', 'final', 'finally', 'float', 'for', 'function', 'goto', 'if', 'implements', 'import', 'in', 'instanceof', 'int', 'interface', 'long', 'namespace', 'native', 'new', 'null', 'package', 'private', 'protected', 'public', 'return', 'short', 'static', 'super', 'switch', 'synchronized', 'this', 'throw', 'throws', 'transient', 'true', 'try', 'typeof', 'use', 'var', 'void', 'volatile', 'while', 'with'];
var ob = ['Anchor', 'anchors', 'Applet', 'applets', 'Area', 'Array', 'Body', 'Button', 'Checkbox', 'Date', 'document', 'FileUpload', 'Form', 'forms', 'Frame', 'frames', 'Hidden', 'History', 'history', 'Image', 'images', 'Layer', 'layers', 'Link', 'links', 'location', 'Math', 'MimeType', 'mimeTypes', 'navigator', 'Number', 'Option', 'options', 'Password', 'Plugin', 'plugins', 'Radio', 'RegExp', 'Reset', 'screen', 'Script', 'Select', 'String', 'Style', 'StyleSheet', 'Submit', 'Text', 'Textarea', 'window'];
var sym = '-+*<=>?:&|/!%';
function JSfmt(s) {
this.i = this.r = this.lvl = this.pr = 0;
this.row = [''];
this.lW = this.nC = this.pC = '';
this.decode = function() {
s = s.replace(/(\r\n|\r|\n)/g, '\n');
while (this.i < s.length) {
var c = s.charAt(this.i);
if (s.length - 1 == this.i) this.nC = '';
else this.nC = s.charAt(this.i + 1);
if (/\w/.test(c)) {
if (this.lW) this.lW += c;
else this.lW = c;
this.row[this.r] += c;
} else switch (c) {
case '\n':
break;
case ' ':
case '\t':
this.hl();
this.row[this.r] += ' ';
break;
case '.':
this.hl();
this.row[this.r] += '.';
break;
case '{':
this.hl();
var currentLine = this.row[this.r];
if (currentLine.length) {
var lastChar = currentLine[currentLine.length - 1];
if (lastChar != ' ' && lastChar != '\t') this.row[this.r] += ' {';
else this.row[this.r] += '{';
} else this.row[this.r] += '{';
this.lvl++;
this.wl();
break;
case '}':
this.hl();
this.lvl--;
this.row[this.r] += '}';
if (';' != this.nC) this.wl();
break;
case ';':
this.hl();
this.row[this.r] += '; ';
if (this.pr == 0) this.wl();
break;
case '(':
this.pr++;
this.hl();
this.row[this.r] += '(';
break;
case ')':
this.pr--;
this.hl();
this.row[this.r] += ')';
break;
case '"':
case "'":
this.hl();
var escaped = false;
this.row[this.r] += '<span class="literal">' + c;
while (this.i < s.length - 1) {
this.i++;
var ch = s.charAt(this.i);
if (ch == '\\') escaped = !escaped;
if (ch == '&') ch = '&';
if (ch == '<') ch = '<';
if (ch == '>') ch = '>';
this.row[this.r] += ch;
if (c == ch && !escaped) {
this.row[this.r] += '<\/span>';
break;
}
if (ch != '\\') escaped = false;
}
break;
case '/':
if ('/' == this.nC) {
this.row[this.r] += '<span class="comment">//';
this.i++;
while (this.i < s.length - 1) {
this.i++;
var c = s.charAt(this.i);
if (c == '&') c = '&';
if (c == '<') c = '<';
if (c == '>') c = '>';
if (c == '\n') {
this.row[this.r] += '<\/span>';
this.wl();
break;
}
this.row[this.r] += c;
}
} else if (this.nC == '*') {
this.row[this.r] += '<span class="comment">/*';
this.i++;
var c = '';
var prevC = '';
while (this.i < s.length - 1) {
this.i++;
prevC = c;
c = s.charAt(this.i);
if (c == ' ' || c == '\t' || c == '\n') {
if (c == ' ') {
if (this.row[this.r]) this.row[this.r] += ' ';
} else if (c == '\t') {
if (this.row[this.r]) this.row[this.r] += ' ';
} else if (c == '\n') this.wl();
} else this.row[this.r] += c;
if (c == '/' && prevC == '*') {
this.row[this.r] += '<\/span>';
break;
}
}
this.wl();
} else if (this.lW) {
this.hl();
if (this.nC == '=') this.row[this.r] += ' /';
else this.row[this.r] += ' / ';
} else if (this.pC == '*') this.row[this.r] += '/ ';
else if (this.pC == ')') this.row[this.r] += ' / ';
else {
if (this.pC == '=') this.row[this.r] += ' /';
else this.row[this.r] += '/';
while (this.i < s.length - 1) {
this.i++;
var c = s.charAt(this.i);
if (c == '(') this.pr++;
if (c == ')') this.pr--;
if (c == '\\') escaped = !escaped;
this.row[this.r] += c;
if (c == ';' && this.pr == 0) {
this.wl();
break;
}
if (c == '/' && this.pr == 0) if (!escaped) break;
if (c != '\\') escaped = false;
}
}
break;
case ',':
this.hl();
this.row[this.r] += ', ';
break;
case '-':
case '+':
case '*':
case '%':
case '<':
case '=':
case '>':
case '?':
case ':':
case '&':
case '|':
case '!':
this.hl();
if (c == '!' && this.nC != '=') {
this.row[this.r] += c;
break;
}
if (c == ':' && this.pC == "'") {
this.row[this.r] += c;
break;
}
if (c == '+' || c == '-') if (c == this.nC || c == this.pC) {
this.row[this.r] += c;
break;
}
if (sym.indexOf(this.pC) != -1) {
if (sym.indexOf(this.nC) != -1) this.row[this.r] += c;
else this.row[this.r] += c + ' ';
} else {
if (sym.indexOf(this.nC) != -1) this.row[this.r] += ' ' + c;
else this.row[this.r] += ' ' + c + ' ';
}
break;
default:
this.hl();
this.row[this.r] += c;
break;
}
if (!/\w/.test(c)) if (c != ' ' && c != '\t') {
this.hl();
this.lW = '';
}
this.pC = c;
this.i++;
}
return this.row.join('<br />');
}
this.hl = function() {
if (this.lW && kw.indexOf(this.lW) != -1) {
this.row[this.r] = this.row[this.r].substr(0, this.row[this.r].lastIndexOf(this.lW)) + '<span class="keyword">' + this.lW + '<\/span>';
this.lW = '';
} else if (this.lW && ob.indexOf(this.lW) != -1) {
this.row[this.r] = this.row[this.r].substr(0, this.row[this.r].lastIndexOf(this.lW)) + '<span class="object">' + this.lW + '<\/span>';
this.lW = '';
}
}
this.wl = function() {
this.row.push('');
this.r++;
var i = 0;
while (i < this.lvl) {
this.row[this.r] += ' ';
i++;
}
}
}
if (typeof Array.prototype.indexOf == 'undefined') {
Array.prototype.indexOf = function(item) {
for (var i = 0; i < this.length; i++) {
if ((typeof this[i] == typeof item) && (this[i] == item)) {
return i;
}
}
return - 1;
}
}
function decode() {
var jsformat = new JSfmt(document.getElementById('in').value);
res(jsformat.decode());
}
function res(t) {
var mh = screen.height - 150;
var mw = screen.width - 20;
TheResWin = window.open('', 'format', 'height=' + mh + ',width=' + mw + ',toolbar=no,directories=no,status=no,' + 'menubar=no,scrollbars=yes,resizable=yes');
TheResWin.document.write('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"\n"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http:\/\/www.w3.org\/1999\/xhtml">\n<head><title>Results<\/title><style type="text/css">#out {font: normal 10pt Courier,"Courier New",monospace; background: #f5f5f5;}\n.keyword {color:#0000ff;}\n.object {color:#ff00ff;}\n.literal {color:#cc9966;}\n.comment {color:#999999;}\n</style><\/head>\n<body ><p align="right"><a href="#" onclick="self.close();return false;">Close Window<\/a><\/p><div id="out">' + t + '</div><p align="right"><a href="#" onclick="self.close();return false;">Close Window<\/a><\/p><\/body><\/html>');
TheResWin.document.close();
TheResWin.moveTo(0, 0);
TheResWin.focus();
}
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