Библиотека Javascript. SE@RCHER

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примерразмер кода

<html>
<HEAD>
<title>Генератор оптимизации HTML-кода</title>
<META http-equiv=Content-Type content="text/html; charset=windows-1251">
<STYLE type=text/css>
UL { LIST-STYLE-TYPE: square }
#demoBox { BORDER-RIGHT: #000066 1px solid; PADDING-RIGHT: 8px; BORDER-TOP: #000066 1px solid; PADDING-LEFT: 8px; PADDING-BOTTOM: 8px; BORDER-LEFT: #000066 1px solid; WIDTH: 44em; PADDING-TOP: 8px; BORDER-BOTTOM: #000066 1px solid }
TD { FONT-SIZE: 10pt; }
TH { FONT-SIZE: 10pt; }
TH { BORDER-RIGHT: #8b0000 1px solid; PADDING-RIGHT: 8px; BORDER-TOP: #8b0000 1px solid; PADDING-LEFT: 8px; BORDER-LEFT: #8b0000 1px solid; WIDTH: auto; COLOR: #e0ffff; BORDER-BOTTOM: #8b0000 1px solid; BACKGROUND-COLOR: #8b0000; TEXT-ALIGN: left }
</STYLE>
</HEAD>
<body>
<SCRIPT type=text/javascript>
var literalStrings;  // For temporary storage of literal strings.
function crunch(f) {
  var input, output;
  var i;
  // Get input script code, process it and display output.
  f.elements.codeOut.value = "";
  f.elements.statusMsg.value = "Working...";
  input = f.elements.codeIn.value;
  output = input;
  f.elements.statusMsg.value = "Replacing literal strings...";
  output = replaceLiteralStrings(output);
  f.elements.statusMsg.value = "Removing comments...";
  output = removeComments(output);
  f.elements.statusMsg.value = "Compressing white space...";
  output = compressWhiteSpace(output);
  f.elements.statusMsg.value = "Restoring literal strings...";
  output = restoreLiteralStrings(output);
  f.elements.statusMsg.value = "Combining literal strings...";
  output = combineLiteralStrings(output);
  f.elements.statusMsg.value = "Done.";
  f.elements.codeOut.value = output;
  // Compute sizes.
  f.elements.sizeIn.value   = input.length;
  f.elements.sizeOut.value  = output.length;
  f.elements.sizeDiff.value = input.length - output.length;
  if (input.length > 0)
    f.elements.pctOut.value = 100 -
      Math.round(output.length / input.length * 10000) / 100;
  return false;
}
function replaceLiteralStrings(s) {
  var i, c, t, lines, escaped, quoteChar, inQuote, literal;
//  literalStrings = new Array(s.length);    // Preallocate some memory.
  literalStrings = new Array();
  t = "";
  // Split script into individual lines.
  lines = s.split("\n");
  for (i = 0; i < lines.length; i++) {
    j = 0;
    inQuote = false;
    while (j <= lines[i].length) {
      c = lines[i].charAt(j);
      // If not already in a string, look for the start of one.
      if (!inQuote) {
        if (c == '"' || c == "'") {
          inQuote = true;
          escaped = false;
          quoteChar = c;
          literal = c;
        }
       else
         t += c;
      }
      // Already in a string, look for end and copy characters.
      else {
        if (c == quoteChar && !escaped) {
          inQuote = false;
          literal += quoteChar;
          t += "__" + literalStrings.length + "__";
          literalStrings[literalStrings.length] = literal;
        }
        else if (c == "\\")
          escaped = true;
        else
          escaped = false;
        literal += c;
      }
      j++;
    }
    t += "\n";
  }
  return t;
}
function removeComments(s) {
  var lines, i, t;
  // Remove '//' comments from each line.
  lines = s.split("\n");
  t = "";
  for (i = 0; i < lines.length; i++)
    t += lines[i].replace(/(.*)\/\/.*$/g, "$1");
  // Replace newline characters with spaces.
  t = t.replace(/(.*)\n(.*)/g, "$1 $2");
  // Remove '/* ... */' comments.
  t = t.replace(/(.*)\x2f\x2a(.*|\n)\x2a\x2f(.*)/g, "$1 $3");
  return t;
}
function compressWhiteSpace(s) {
  // Condense white space.
  s = s.replace(/\s+/g, " ");
  s = s.replace(/^\s(.*)/, "$1");
  s = s.replace(/(.*)\s$/, "$1");
  // Remove uneccessary white space around operators, braces and parentices.
  s = s.replace(/\s([\x21\x25\x26\x28\x29\x2a\x2b\x2c\x2d\x2f\x3a\x3b\x3c\x3d\x3e\x3f\x5b\x5d\x5c\x7b\x7c\x7d\x7e])/g, "$1");
  s = s.replace(/([\x21\x25\x26\x28\x29\x2a\x2b\x2c\x2d\x2f\x3a\x3b\x3c\x3d\x3e\x3f\x5b\x5d\x5c\x7b\x7c\x7d\x7e])\s/g, "$1");
  return s;
}
function restoreLiteralStrings(s) {
  var i;
  for (i = 0; i < literalStrings.length; i++)
    s = s.replace(new RegExp("__" + i + "__"), literalStrings[i]);
  return s;
}
function combineLiteralStrings(s) {
  var i;
  s = s.replace(/"\+"/g, "");
  s = s.replace(/'\+'/g, "");
  return s;
}
</SCRIPT>
</HEAD>
<BODY>
<center>
<FORM onsubmit="return crunch(this)">
<P>
<TABLE border=0>
  <TBODY>
  <TR>
    <TH colSpan=3>Input</TH></TR>
  <TR>
    <TD colSpan=3><TEXTAREA name=codeIn rows=10 cols=80>

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