lib-js-terminal-parser-sample.htm / htm
<html>
<head>
<title>termlib Sample Parser</title>
<script language="JavaScript" type="text/javascript" src="lib-js-terminal-termlib.js"></script>
<script language="JavaScript" type="text/javascript" src="lib-js-terminal-termlib-parser.js"></script>
<script language="JavaScript" type="text/javascript">
<!--
/*
test sample for termlib.js and termlib_parser.js
(c) Norbert Landsteiner 2005
mass:werk - media environments
<http://www.masswerk.at>
*/
var term;
var helpPage=[
'\ %CS%+r Terminal Help %-r\ %n',
' This is just a sample to demonstrate command line parsing.',
' ',
' Use one of the following commands:',
' clear [-a] .......... clear the terminal',
' option "a" also removes the status line',
' number -n<value> .... return value of option "n" (test for options)',
' repeat -n<value> .... repeats the first argument n times (another test)',
' login <username> .... sample login (test for raw mode)',
' exit ................ close the terminal (same as <ESC>)',
' help ................ show this help page',
' ',
' other input will be echoed to the terminal as a list of parsed arguments',
' in the format <argument index> <quoting level> "<parsed value>".',
' '
];
function termOpen() {
if (!term) {
term=new Terminal(
{
x: 220,
y: 70,
termDiv: 'termDiv',
ps: '[guest]// output a start up screen
this.write(
[
this.globals.center(' ', 80),
this.globals.center('# #', 80),
this.globals.center('# termlib.js - Sample Parser #', 80),
this.globals.center('# Input is echoed as a list of parsed arguments. #', 80),
this.globals.center('# #', 80),
this.globals.center('# Type "help" for commands. #', 80),
this.globals.center('# #', 80),
this.globals.center('# (c) N. Landsteiner 2005; www.masswerk.at #', 80),
this.globals.center('# #', 80),
this.globals.center(' ', 80),
'\ %n'
]
);
// set a double status line
this.statusLine('', 8,2); // just a line of strike
this.statusLine(' +++ This is just a test sample for command parsing. Type "help" for help. +++');
this.maxLines -= 2;
// and leave with prompt
this.prompt();
}
function commandHandler() {
this.newLine();
// check for raw mode first (should not be parsed)
if (this.rawMode) {
if (this.env.getPassword) {
// sample password handler (lineBuffer == stored username ?)
if (this.lineBuffer == this.env.username) {
this.user = this.env.username;
this.ps = '['+this.user+']>';
}
else {
this.type('Sorry.');
}
this.env.username = '';
this.env.getPassword = false;
}
// leave in normal mode
this.rawMode = false;
this.prompt();
return;
}
// normal command parsing
// just call the termlib_parser with a reference of the calling Terminal instance
// parsed arguments will be imported in this.argv,
// quoting levels per argument in this.argQL (quoting character or empty)
// cursor for arguments is this.argc (used by parserGetopt)
// => see 'termlib_parse.js' for configuration and details
parseLine(this);
if (this.argv.length == 0) {
// no commmand line input
}
else if (this.argQL[0]) {
// first argument quoted -> error
this.write("Syntax error: first argument quoted.");
}
else {
var cmd = this.argv[this.argc++];
/*
process commands now
1st argument: this.argv[this.argc]
*/
if (cmd == 'help') {
this.write(helpPage);
}
else if (cmd == 'clear') {
// get options
var opts = parserGetopt(this, 'aA');
if (opts.a) {
// discard status line on opt "a" or "A"
this.maxLines = this.conf.rows;
}
this.clear();
}
else if (cmd == 'number') {
// test for value options
var opts = parserGetopt(this, 'n');
if (opts.illegals.length) this.type('illegal option. usage: number -n<value>')
else if ((opts.n) && (opts.n.value != -1)) this.type('option value: '+opts.n.value)
else this.type('usage: number -n<value>');
}
else if (cmd == 'repeat') {
// another test for value options
var opts = parserGetopt(this, 'n');
if (opts.illegals.length) this.type('illegal option. usage: repeat -n<value> <string>')
else if ((opts.n) && (opts.n.value != -1)) {
// first normal argument is again this.argv[this.argc]
var s = this.argv[this.argc];
if (typeof s != 'undefined') {
// repeat this string n times
var a = [];
for (var i=0; i<opts.n.value; i++) a[a.length] = s;
this.type(a.join(' '));
}
}
else this.type('usage: repeat -n<value> <string>');
}
else if (cmd == 'login') {
// sample login (test for raw mode)
if ((this.argc == this.argv.length) || (this.argv[this.argc] == '')) {
this.type('usage: login <username>');
}
else {
this.env.getPassword = true;
this.env.username = this.argv[this.argc];
this.write('%+iSample login: repeat username as password.%-i\ %n');
this.type('password: ');
// exit in raw mode (blind input)
this.rawMode = true;
this.lock = false;
return;
}
}
else if (cmd == 'exit') {
this.close();
return;
}
else {
// for test purpose just output argv as list
// assemble a string of style-escaped lines and output it in more-mode
s=' INDEX QL ARGUMENT\ %n';
for (var i=0; i<this.argv.length; i++) {
s += this.globals.stringReplace('%', '%%',
this.globals.fillLeft(i, 6) +
this.globals.fillLeft((this.argQL[i])? this.argQL[i]:'-', 4) +
' "' + this.argv[i] + '"'
) + '\ %n';
}
this.write(s, 1);
return;
}
}
this.prompt();
}
//-->
</script>
<style type="text/css">
body,p,a,td {
font-family: courier,fixed,swiss,sans-serif;
font-size: 12px;
color: #cccccc;
}
.lh15 {
line-height: 15px;
}
.term {
font-family: courier,fixed,swiss,sans-serif;
font-size: 12px;
color: #33d011;
background: none;
}
.termReverse {
color: #111111;
background: #33d011;
}
a,a:link,a:visited {
text-decoration: none;
color: #77dd11;
}
a:hover {
text-decoration: underline;
color: #77dd11;
}
a:active {
text-decoration: underline;
color: #dddddd;
}
a.termopen,a.termopen:link,a.termopen:visited {
text-decoration: none;
color: #77dd11;
background: none;
}
a.termopen:hover {
text-decoration: none;
color: #222222;
background: #77dd11;
}
a.termopen:active {
text-decoration: none;
color: #222222;
background: #dddddd;
}
</style>
</head>
<body bgcolor="#222222" link="#77dd11" text="#cccccc" alink="#dddddd" vlink="#77dd11"
topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" marginheight="0" marginwidth="0">
<table border="0" cellspacing="20" cellpadding="0" align="center">
<tr>
<td nowrap><a href="index.html">termlib.js home</a></td>
<td>|</td>
<td nowrap><a href="multiterm_test.html">multiple terminals</a></td>
<td>|</td>
<td nowrap>parser</td>
<td>|</td>
<td nowrap><a href="faq.html">faq</a></td>
<td>|</td>
<td nowrap><a href="readme.txt" title="readme.txt (text/plain)">documentation</a></td>
<td>|</td>
<td nowrap><a href="samples.html">samples</a></td>
</tr>
</table>
<table border="0" cellspacing="20" cellpadding="0">
<tr><td nowrap>
Sample Parser Test<br>
</td></tr>
<tr><td nowrap>
<a href="javascript:termOpen()" onfocus="if(this.blur)this.blur();" onmouseover="window.status='terminal 1'; return true" onmouseout="window.status=''; return true" class="termopen">> open terminal </a>
</td></tr>
<tr><td nowrap>
</td></tr>
<tr><td nowrap class="lh15">
<br>
(c) mass:werk,<br>N. Landsteiner 2003-2005<br>
<a href="http://www.masswerk.at/" target="_blank">http://www.masswerk.at>
</td></tr>
</table>
<div id="termDiv" style="position:absolute;"></div>
</body>
</html>
(C) Æliens 04/09/2009
You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.
