Commands now managed like plugins
This commit is contained in:
BlackLight
parent
7a10aa73c2
commit
099f0192a7
6 changed files with 327 additions and 245 deletions
39
blash.js
39
blash.js
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@ -9,6 +9,9 @@ function blash ()
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/** Shell window object */
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this.window = document.getElementById ( "blashWindow" );
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/** Array containing the codes of the shell commands */
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this.commands = new Array();
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/** Escape sequences to be parsed in the prompt text */
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this.promptSequences = new Array();
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@ -34,6 +37,25 @@ function blash ()
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this.__open_spans = 0;
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/**************************************/
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this.loadCommand = function ( cmd )
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{
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var cmd_file = window.location.href;
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cmd_file = cmd_file.replace ( /\/([a-zA-Z\.]+)$/, '/commands/' + cmd + ".json" );
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var http = new XMLHttpRequest();
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http.open ( "GET", cmd_file, true );
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http.onreadystatechange = function ()
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{
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if ( http.readyState == 4 && http.status == 200 )
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{
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shell.commands.push ( eval ( '(' + http.responseText + ')' ));
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}
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}
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http.send ( null );
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}
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this.prompt.focus();
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var json_config = window.location.href;
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@ -58,6 +80,11 @@ function blash ()
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banner.innerHTML = shell.json.banner;
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shell.window.insertBefore ( banner, shell.promptText );
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}
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for ( var i in shell.json.commands )
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{
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shell.loadCommand ( shell.json.commands[i] );
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}
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}
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}
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@ -79,12 +106,12 @@ function blash ()
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this.history.push ( this.prompt.value );
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this.history_index = -1;
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for ( i=0; i < this.json.commands.length && !cmd_found; i++ )
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for ( i=0; i < this.commands.length && !cmd_found; i++ )
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{
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if ( this.json.commands[i].name == cmd )
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if ( this.commands[i].name == cmd )
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{
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cmd_found = true;
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var out = this.json.commands[i].action ( arg );
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var out = this.commands[i].action ( arg );
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if ( out.length > 0 )
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{
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@ -189,13 +216,13 @@ function blash ()
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} else {
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var cmds = new Array();
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for ( var i in this.json.commands )
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for ( var i in this.commands )
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{
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var re = new RegExp ( '^' + this.prompt.value );
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if ( this.json.commands[i].name.match ( re ))
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if ( this.commands[i].name.match ( re ))
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{
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cmds.push ( this.json.commands[i].name );
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cmds.push ( this.commands[i].name );
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}
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}
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242
blash.json
242
blash.json
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@ -63,244 +63,10 @@
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],
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"commands" : [
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{
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"name" : "pwd",
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"info" : {
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"syntax" : "pwd",
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"brief" : "Print name of current/working directory",
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},
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"action" : function ( arg ) {
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if ( arg )
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{
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if ( arg.length > 0 )
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{
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return this.name + ": Too many arguments<br/>";
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} else {
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return shell.path + '<br/>';
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}
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} else {
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return shell.path + '<br/>';
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}
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},
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},
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{
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"name" : "man",
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"info" : {
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"syntax" : "man <page>",
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"brief" : "Display the manual page for the command 'page'",
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},
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"action" : function ( arg ) {
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var out = '';
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if ( arg == undefined || arg.length == 0 )
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{
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return "What manual page do you want?<br/>\n";
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}
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var cmd = shell.json.commands;
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if ( arg == 'blash' )
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{
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var commands = new Array();
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out = '<span class="brief">Type "<span class="syntax">man <command></span>" for a more detailed help on these commands</span><br/><br/>';
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for ( var i=0; i < cmd.length; i++ )
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{
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commands.push ( cmd[i].info.syntax );
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}
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commands.sort();
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for ( var i in commands )
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{
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out += '<span class="syntax">' + commands[i] + '</span><br/>';
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}
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return out;
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}
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var found = false;
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for ( var i=0; i < cmd.length && !found; i++ )
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{
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if ( arg == cmd[i].name )
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{
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if ( cmd[i].info.syntax.length > 0 && cmd[i].info.brief.length > 0 )
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{
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found = true;
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out =
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'<span class="syntax">' + cmd[i].info.syntax + '</span><br/><br/>' +
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'<span class="brief">' + cmd[i].info.brief + '</span><br/>';
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}
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}
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}
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if ( !found )
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{
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return "No manual entry for " + arg + "<br/>\n";
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}
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return out;
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},
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},
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{
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"name" : "ls",
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"info" : {
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"syntax" : "ls [path]",
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"brief" : "List directory contents",
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},
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"action" : function ( arg )
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{
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var dirs = new Array();
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var out = '';
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var exists = false;
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arg = arg.replace ( /\/$/, '' );
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if ( !arg || arg.length == 0 )
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{
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var re = new RegExp ( '^' + shell.path + '[^/]+$' );
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} else if ( arg && arg.length > 0 ) {
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var re = null;
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if ( arg.match ( /^\// ))
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{
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re = new RegExp ( '^' + arg + '/[^/]+$' );
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} else {
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re = new RegExp ( '^' + shell.path +
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(( shell.path == '/' ) ? '' : '/' ) +
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arg + '/[^/]+$' );
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}
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}
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for ( var i=0; i < shell.json.directories.length; i++ )
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{
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var dir = shell.json.directories[i];
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if ( dir.path.match ( re ))
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{
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exists = true;
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dir.path.match ( /\/([^\/]+)$/ );
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dirs.push ({
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"path" : RegExp.$1,
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"type" : dir.type,
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"href" : dir.href,
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});
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}
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}
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if ( dirs.length > 0 )
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{
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var ordered = false;
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// Directories go first
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while ( !ordered )
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{
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ordered = true;
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for ( var i=0; i < dirs.length-1; i++ )
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{
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for ( var j=i+1; j < dirs.length; j++ )
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{
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if ( dirs[i].type == 'file' && dirs[j].type == 'directory' )
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{
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var tmp = dirs[i];
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dirs[i] = dirs[j];
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dirs[j] = tmp;
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ordered = false;
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}
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}
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}
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}
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ordered = false;
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// Sort the names
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while ( !ordered )
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{
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ordered = true;
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for ( var i=0; i < dirs.length-1; i++ )
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{
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for ( var j=i+1; j < dirs.length; j++ )
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{
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if ( dirs[i].type == dirs[j].type && dirs[i].path > dirs[j].path )
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{
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var tmp = dirs[i];
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dirs[i] = dirs[j];
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dirs[j] = tmp;
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ordered = false;
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}
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}
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}
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}
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for ( var i in dirs )
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{
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if ( dirs[i] )
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{
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if ( dirs[i].path.length > 0 )
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{
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if ( dirs[i].type == 'directory' )
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{
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out += '<span class="directory">' + dirs[i].path + '</span>/<br/>';
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} else {
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if ( dirs[i].href && dirs[i].href.length > 0 )
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{
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out += '<a href="' + dirs[i].href + '" class="file" target="_new">' + dirs[i].path + '</a>*<br/>';
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} else {
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out += '<span class="file">' + dirs[i].path + '</span><br/>';
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}
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}
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}
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}
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}
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}
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if ( !exists )
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{
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var re = null;
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if ( arg.match ( /^\// ))
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{
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re = new RegExp ( '^' + arg );
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} else {
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re = new RegExp ( '^' + shell.path +
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(( shell.path == '/' ) ? '' : '/' ) + arg );
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}
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for ( var i=0; i < shell.json.directories.length; i++ )
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{
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var dir = shell.json.directories[i];
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if ( dir.path.match ( re ))
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{
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exists = true;
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break;
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}
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}
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if ( !exists )
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{
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out = this.name + ": cannot access " + arg +
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": No such file or directory<br/>";
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} else {
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out = '';
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}
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}
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return out;
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}
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}
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"cd",
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"ls",
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"man",
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"pwd",
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],
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}
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50
commands/cd.json
Normal file
50
commands/cd.json
Normal file
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@ -0,0 +1,50 @@
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{
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"name" : "cd",
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"info" : {
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"syntax" : "cd <directory>",
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"brief" : "Change the current directory to the specified one",
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},
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"action" : function ( arg )
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{
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var out = '';
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if ( !arg || arg.length == 0 )
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{
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return "Parameter expected<br/>\n";
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}
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arg = arg.replace ( /\/$/, '' );
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if ( arg.match ( /^[^\/]/ ))
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{
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arg = this.path + '/' + arg;
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arg = arg.replace ( /\/+/, '/' );
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}
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var found = false;
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for ( var i=0; i < shell.json.directories.length && !found; i++ )
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{
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if ( shell.json.directories[i].path == arg )
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{
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found = true;
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if ( shell.json.directories[i].type != 'directory' )
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{
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return "cd: not a directory: " + arg + "<br/>\n";
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}
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}
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}
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if ( !found )
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{
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return "cd: no such file or directory: " + arg + "<br/>\n";
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}
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shell.path = arg;
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return out;
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},
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}
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152
commands/ls.json
Normal file
152
commands/ls.json
Normal file
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@ -0,0 +1,152 @@
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{
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"name" : "ls",
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"info" : {
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"syntax" : "ls [path]",
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"brief" : "List directory contents",
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},
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"action" : function ( arg )
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{
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var dirs = new Array();
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var out = '';
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var exists = false;
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arg = arg.replace ( /\/$/, '' );
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if ( !arg || arg.length == 0 )
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{
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var re = new RegExp ( '^' + shell.path + '[^/]+$' );
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} else if ( arg && arg.length > 0 ) {
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var re = null;
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if ( arg.match ( /^\// ))
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{
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re = new RegExp ( '^' + arg + '/[^/]+$' );
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} else {
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re = new RegExp ( '^' + shell.path +
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(( shell.path == '/' ) ? '' : '/' ) +
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arg + '/[^/]+$' );
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}
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}
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for ( var i=0; i < shell.json.directories.length; i++ )
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{
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var dir = shell.json.directories[i];
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if ( dir.path.match ( re ))
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{
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exists = true;
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dir.path.match ( /\/([^\/]+)$/ );
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dirs.push ({
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"path" : RegExp.$1,
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"type" : dir.type,
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"href" : dir.href,
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});
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}
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}
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if ( dirs.length > 0 )
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{
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var ordered = false;
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// Directories go first
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while ( !ordered )
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{
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ordered = true;
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for ( var i=0; i < dirs.length-1; i++ )
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{
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for ( var j=i+1; j < dirs.length; j++ )
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{
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if ( dirs[i].type == 'file' && dirs[j].type == 'directory' )
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{
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var tmp = dirs[i];
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dirs[i] = dirs[j];
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dirs[j] = tmp;
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ordered = false;
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}
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}
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}
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}
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ordered = false;
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// Sort the names
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while ( !ordered )
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{
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ordered = true;
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for ( var i=0; i < dirs.length-1; i++ )
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{
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for ( var j=i+1; j < dirs.length; j++ )
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{
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if ( dirs[i].type == dirs[j].type && dirs[i].path > dirs[j].path )
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{
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var tmp = dirs[i];
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dirs[i] = dirs[j];
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dirs[j] = tmp;
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ordered = false;
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}
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}
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}
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}
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for ( var i in dirs )
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{
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if ( dirs[i] )
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{
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if ( dirs[i].path.length > 0 )
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{
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if ( dirs[i].type == 'directory' )
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{
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out += '<span class="directory">' + dirs[i].path + '</span>/<br/>';
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} else {
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if ( dirs[i].href && dirs[i].href.length > 0 )
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{
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out += '<a href="' + dirs[i].href + '" class="file" target="_new">' + dirs[i].path + '</a>*<br/>';
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} else {
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out += '<span class="file">' + dirs[i].path + '</span><br/>';
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}
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}
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}
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}
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}
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}
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if ( !exists )
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{
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var re = null;
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if ( arg.match ( /^\// ))
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{
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re = new RegExp ( '^' + arg );
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} else {
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re = new RegExp ( '^' + shell.path +
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(( shell.path == '/' ) ? '' : '/' ) + arg );
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}
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for ( var i=0; i < shell.json.directories.length; i++ )
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{
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var dir = shell.json.directories[i];
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if ( dir.path.match ( re ))
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{
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exists = true;
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break;
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}
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}
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if ( !exists )
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{
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out = this.name + ": cannot access " + arg +
|
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": No such file or directory<br/>";
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} else {
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out = '';
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}
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}
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return out;
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}
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}
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64
commands/man.json
Normal file
64
commands/man.json
Normal file
|
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@ -0,0 +1,64 @@
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{
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"name" : "man",
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"info" : {
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"syntax" : "man <page>",
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"brief" : "Display the manual page for the command 'page'",
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},
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"action" : function ( arg ) {
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var out = '';
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|
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if ( arg == undefined || arg.length == 0 )
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{
|
||||
return "What manual page do you want?<br/>\n";
|
||||
}
|
||||
|
||||
var cmd = shell.json.commands;
|
||||
|
||||
if ( arg == 'blash' )
|
||||
{
|
||||
var commands = new Array();
|
||||
out = '<span class="brief">Type "<span class="syntax">man <command></span>" for a more detailed help on these commands</span><br/><br/>';
|
||||
|
||||
for ( var i=0; i < cmd.length; i++ )
|
||||
{
|
||||
commands.push ( cmd[i].info.syntax );
|
||||
}
|
||||
|
||||
commands.sort();
|
||||
|
||||
for ( var i in commands )
|
||||
{
|
||||
out += '<span class="syntax">' + commands[i] + '</span><br/>';
|
||||
}
|
||||
|
||||
return out;
|
||||
}
|
||||
|
||||
var found = false;
|
||||
|
||||
for ( var i=0; i < cmd.length && !found; i++ )
|
||||
{
|
||||
if ( arg == cmd[i].name )
|
||||
{
|
||||
if ( cmd[i].info.syntax.length > 0 && cmd[i].info.brief.length > 0 )
|
||||
{
|
||||
found = true;
|
||||
|
||||
out =
|
||||
'<span class="syntax">' + cmd[i].info.syntax + '</span><br/><br/>' +
|
||||
'<span class="brief">' + cmd[i].info.brief + '</span><br/>';
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if ( !found )
|
||||
{
|
||||
return "No manual entry for " + arg + "<br/>\n";
|
||||
}
|
||||
|
||||
return out;
|
||||
},
|
||||
}
|
||||
|
||||
23
commands/pwd.json
Normal file
23
commands/pwd.json
Normal file
|
|
@ -0,0 +1,23 @@
|
|||
{
|
||||
"name" : "pwd",
|
||||
|
||||
"info" : {
|
||||
"syntax" : "pwd",
|
||||
"brief" : "Print name of current/working directory",
|
||||
},
|
||||
|
||||
"action" : function ( arg ) {
|
||||
if ( arg )
|
||||
{
|
||||
if ( arg.length > 0 )
|
||||
{
|
||||
return this.name + ": Too many arguments<br/>";
|
||||
} else {
|
||||
return shell.path + '<br/>';
|
||||
}
|
||||
} else {
|
||||
return shell.path + '<br/>';
|
||||
}
|
||||
},
|
||||
}
|
||||
|
||||
Loading…
Reference in a new issue