-// -* coding: utf-8; -*
+// xex.js -- Xex (XML Expression) interpreter
+// Copyright (C) 2010
+// National Institute of Advanced Industrial Science and Technology (AIST)
+// Registration Number H15PRO112
+
+// This file is part of the m17n database; a sub-part of the m17n
+// library.
+
+// The m17n library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public License
+// as published by the Free Software Foundation; either version 2.1 of
+// the License, or (at your option) any later version.
+
+// The m17n library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+
+// You should have received a copy of the GNU Lesser General Public
+// License along with the m17n library; if not, write to the Free
+// Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+// Boston, MA 02110-1301, USA.
+
+var Xex = {};
+
+(function () { // Tracing
+ // The logging node containing tracing information.
+ var log = null;
+ // Number of lines.
+ var lines;
+ // Style properties of the logging node.
+ var styles = { border: '1px solid black',
+ font: 'normal normal normal small monospace',
+ width: '100%',
+ minHeight: '300px',
+ maxHeight: '300px',
+ overflow: 'auto' };
+
+ // Toggle logging on and off. PARENT if non-null specifies the
+ // parent of the log node. The log node is appended to the parent.
+ // If PARENT is null, 'body' node is assumed.
+ Xex.LogToggle = function (parent)
+ {
+ if (log)
+ {
+ log.parentNode.removeChild (log);
+ log = null;
+ return;
+ }
+ if (! parent)
+ parent = document.getElementsByTagName ('body')[0];
+ log = document.createElement ('ol');
+ for (var prop in styles)
+ log.style[prop] = styles[prop];
+ parent.appendChild (log);
+ lines = 0;
+ return log;
+ }
-var Xex = {
- LogNode: null,
- Log: function (indent, arg)
+ // Log ARG
+ Xex.Log = function (arg, indent)
{
- if (! Xex.LogNode)
+ if (! log)
return;
- var str = '';
- for (var i = 0; i < indent; i++)
- str += ' ';
- Xex.LogNode.value = str + arg + "\n" + Xex.LogNode.value;
+ if (! arg)
+ {
+ while (log.childNodes.length > 0)
+ log.removeChild (log.firstChild);
+ lines = 0;
+ }
+ else
+ {
+ var node;
+ if (indent == -1)
+ log.lastChild.innerText += arg;
+ else
+ {
+ lines++;
+ if (lines >= 60)
+ {
+ node = log.firstElement ();
+ log.start = lines - 58;
+ }
+ else
+ node = document.createElement ('li');
+ if (indent != undefined)
+ node.style.textIndent = (indent + 1) + 'em';
+ else
+ node.style.textIndent = '0px';
+ node.innerText = arg;
+ log.appendChild (node);
+ log.scrollTop = log.scrollHeight;
+ }
+ }
}
-};
+}) ();
Xex.Error = {
UnknownError: "unknown-error",
Xex.Subrountine.prototype.Call = function (domain, vari, args)
{
- newargs = new Array ();
+ var newargs = new Array ();
for (var i = 0; i < args.length; i++)
{
newargs[i] = args[i].Eval (domain);
domain.Bind (this.args[i], args[i]);
try {
domain.Catch (Xex.CatchTag.Return);
- for (var term in body)
+ for (var i in this.body)
{
- result = term.Eval (domain);
+ result = this.body[i].Eval (domain);
if (domain.Thrown ())
break;
}
for (elt in parent.functions)
this.functions[elt] = parent.functions[elt];
for (elt in parent.variables)
- this.variables[elt] = parent.variables[elt];
+ {
+ var vari = parent.variables[elt];
+ this.variables[elt] = new Xex.Variable (this, vari.name, vari.desc,
+ vari.val, vari.range);
+ }
}
this.call_stack = new Array ();
Equals: function (obj)
{
return (this.type == obj.type
- && this.val
+ && this.val != undefined
&& obj.val == this.val);
},
Matches: function (obj) { return this.Equals (obj); },
if (! name)
throw new Xex.ErrTerm (Xex.Error.NoVariableName, node, '');
var vari = domain.variables[name];
- var desc, val, range;
+ var desc, val = null, range;
if (vari)
{
desc = vari.description;
range.push (pval);
}
}
- if (! val)
+ if (val == null)
val = Xex.Zero;
domain.Defvar (name, desc, val, range);
return name;
proto.Clone = function () { return new Xex.Varref (this.val); }
proto.Eval = function (domain)
{
- if (! this.vari || this.vari.domain != domain)
- this.vari = domain.GetVarCreate (this.val);
- Xex.Log (domain.depth, this.ToString () + '=>' + this.vari.val);
- return this.vari.val;
+ var vari = domain.GetVarCreate (this.val);
+ Xex.Log (this.ToString () + '=>' + vari.val, domain.depth);
+ return vari.val;
}
proto.Parser = function (domain, node)
var null_args = new Array ();
-Xex.Funcall = function (func, vari, args)
+Xex.Funcall = function (func, vname, args)
{
this.func = func;
- this.vari = vari;
+ this.vname = vname;
this.args = args || null_args;
};
if (fname == 'funcall')
fname = node.attributes['fname'].nodeValue;
var func = domain.GetFunc (fname);
- var vari;
+ var vname;
attr = node.attributes['vname'];
- vari = attr != undefined ? domain.GetVarCreate (attr.nodeValue) : false;
+ vname = attr != undefined ? attr.nodeValue : null;
var args = Xex.Term.Parse (domain, node.firstElement (), null);
- return new Xex.Funcall (func, vari, args);
+ return new Xex.Funcall (func, vname, args);
}
proto.New = function (domain, fname, vname, args)
{
var func = domain.GetFunc (fname);
- var vari = vname ? domain.GetVarCreate (vname) : null;
- var funcall = new Xex.Funcall (func, vari, args);
+ var funcall = new Xex.Funcall (func, vname, args);
if (func instanceof Xex.Macro)
funcall = funcall.Eval (domain);
return funcall;
proto.Eval = function (domain)
{
- Xex.Log (domain.depth++, this);
+ Xex.Log (this, domain.depth);
+ var vari;
+ if (this.vname)
+ vari = domain.GetVarCreate (this.vname);
+ domain.depth++;
var result;
try {
- result = this.func.Call (domain, this.vari, this.args);
+ result = this.func.Call (domain, vari, this.args);
} finally {
- Xex.Log (--domain.depth, this + ' => ' + result);
+ Xex.Log (' => ' + result, --domain.depth,
+ this.func instanceof Xex.Subrountine);
}
return result;
}
var arglist = ''
var len = this.args.length;
var str = '<' + this.func.name;
- if (this.vari)
- str += ' vname="' + this.vari.name + '"';
+ if (this.vname)
+ str += ' vname="' + this.vname + '"';
if (len == 0)
return str + '/>';
- for (var i = 0; i < len; i++)
- arglist += this.args[i].toString ();
+ if (this.func instanceof Xex.Subrountine)
+ for (var i = 0; i < len; i++)
+ arglist += this.args[i].toString ();
+ else
+ for (var i = 0; i < len; i++)
+ arglist += '.';
return str + '>' + arglist + '</' + this.func.name + '>';
}
proto.Clone = function () { return new Xex.StrTerm (this.val); }
proto.Parser = function (domain, node)
{
- return new Xex.StrTerm (node.firstChild.nodeValue);
+ return new Xex.StrTerm (node.firstChild ? node.firstChild.nodeValue : '');
}
Xex.StrTerm.prototype = proto;
}) ();
function Fset (domain, vari, args)
{
- return vari.SetValue (args[0]);
- }
-
- function maybe_set_intvar (vari, n)
- {
- var term = new Xex.IntTerm (n);
- if (vari != null)
- vari.SetValue (term);
- return term;
- }
-
- function Fset (domain, vari, args)
- {
if (! vari)
throw new Xex.ErrTerm (Xex.Error.NoVariableName,
'No variable name to set');
return args[0];
}
+ function Fnot (domain, vari, args)
+ {
+ return (args[0].IsTrue () ? Xex.Zero : Xex.One);
+ }
+
function maybe_set_intvar (vari, n)
{
- var term = new IntTerm (n);
+ var term = new Xex.IntTerm (n);
if (vari)
vari.SetValue (term);
return term;
{
var n = vari ? vari.val.Intval () : 1;
for (var i = 0; i < args.length; i++)
- n *= arg.Intval ();
+ n *= args[i].Intval ();
return maybe_set_intvar (vari, n);
}
return maybe_set_intvar (vari, n);
}
+ function Flogand (domain, vari, args)
+ {
+ var n, i;
+ if (vari == null)
+ {
+ Xex.Log ("logand arg args[0]" + args[0]);
+ n = args[0].Intval ()
+ i = 1;
+ }
+ else
+ {
+ Xex.Log ("logand arg var " + vari);
+ n = vari.val.Intval ();
+ i = 0;
+ }
+ while (n > 0 && i < args.length)
+ {
+ Xex.Log ("logand arg " + args[i]);
+ n &= args[i++].val;
+ }
+ return maybe_set_intvar (vari, n);
+ }
+
+ function Flsh (domain, vari, args)
+ {
+ return maybe_set_intvar (vari, args[0].Intval () << args[1].Intval ());
+ }
+
+ function Frsh (domain, vari, args)
+ {
+ return maybe_set_intvar (vari, args[0].Intval () >> args[1].Intval ());
+ }
+
function Fand (domain, vari, args)
{
var len = args.length;
return Xex.One;
}
+ function Fnoteq (domain, vari, args)
+ {
+ return (Feq (domain, vari, args) == Xex.One ? Xex.Zero : Xex.One);
+ }
+
function Flt (domain, vari, args)
{
- var n = args[0].Intval;
+ var n = args[0].Intval ();
for (var i = 1; i < args.length; i++)
{
- var n1 = args[i].Intval;
+ var n1 = args[i].Intval ();
if (n >= n1)
return Xex.Zero;
n = n1;
function Fle (domain, vari, args)
{
- var n = args[0].Intval;
+ var n = args[0].Intval ();
for (var i = 1; i < args.length; i++)
{
- var n1 = args[i].Intval;
+ var n1 = args[i].Intval ();
if (n > n1)
return Xex.Zero;
n = n1;
function Fgt (domain, vari, args)
{
- var n = args[0].Intval;
+ var n = args[0].Intval ();
for (var i = 1; i < args.length; i++)
{
- var n1 = args[i].Intval;
+ var n1 = args[i].Intval ();
if (n <= n1)
return Xex.Zero;
n = n1;
function Fge (domain, vari, args)
{
- var n = args[0].Intval;
- for (var i = 1; i < args.Length; i++)
+ var n = args[0].Intval ();
+ for (var i = 1; i < args.length; i++)
{
- var n1 = args[i].Intval;
+ var n1 = args[i].Intval ();
if (n < n1)
return Xex.Zero;
n = n1;
if (result.IsTrue ())
return args[1].Eval (domain);
if (args.length == 2)
- return Zero;
+ return Xex.Zero;
return args[2].Eval (domain);
}
{
for (var i = 0; i < args.length; i++)
{
- var list = args[i].val;
- var result = list.val[0].Eval (doamin);
- if (result.isTrue ())
+ var list = args[i];
+ var result = list.val[0].Eval (domain);
+ if (result.IsTrue ())
{
for (var j = 1; j < list.val.length; j++)
{
basic.DefSubr (Fset, "set", true, 1, 1);
basic.DefAlias ("=", "set");
- //basic.DefSubr (Fnot, "not", false, 1, 1);
- //basic.DefAlias ("!", "not");
+ basic.DefSubr (Fnot, "not", false, 1, 1);
+ basic.DefAlias ("!", "not");
basic.DefSubr (Fadd, "add", true, 1, -1);
basic.DefSubr (Fmul, "mul", true, 1, -1);
basic.DefAlias ("*", "mul");
basic.DefAlias ("%", "mod");
basic.DefSubr (Flogior, "logior", true, 1, -1);
basic.DefAlias ('|', "logior");
- //basic.DefSubr (Flogand, "logand", true, 1, -1);
- //basic.DefAlias ("&", "logand");
- //basic.DefSubr (Flsh, "lsh", true, 1, 2);
- //basic.DefAlias ("<<", "lsh");
- //basic.DefSubr (Frsh, "rsh", true, 1, 2);
- //basic.DefAlias (">>", "rsh");
+ basic.DefSubr (Flogand, "logand", true, 1, -1);
+ basic.DefAlias ("&", "logand");
+ basic.DefSubr (Flsh, "lsh", true, 1, 2);
+ basic.DefAlias ("<<", "lsh");
+ basic.DefSubr (Frsh, "rsh", true, 1, 2);
+ basic.DefAlias (">>", "rsh");
basic.DefSubr (Feq, "eq", false, 2, -1);
basic.DefAlias ("==", "eq");
- //basic.DefSubr (Fnoteq, "noteq", false, 2, 2);
- //basic.DefAlias ("!=", "noteq");
+ basic.DefSubr (Fnoteq, "noteq", false, 2, 2);
+ basic.DefAlias ("!=", "noteq");
basic.DefSubr (Flt, "lt", false, 2, -1);
basic.DefAlias ("<", "lt");
basic.DefSubr (Fle, "le", false, 2, -1);
obj.open ('GET', url, false);
obj.overrideMimeType ('text/xml');
obj.send ('');
- return obj.responseXML.firstChild;
-}
-
-var MIM = {
- // URL of the input method server.
- server: "http://www.m17n.org/common/mim-js",
- // Boolean flag to tell if MIM is active or not.
- enabled: true,
- // Boolean flag to tell if MIM is running in debug mode or not.
- debug: false,
- // List of main input methods.
- imlist: {},
- // List of extra input methods;
- imextra: {},
- // Global input method data
- im_global: null,
- // Currently selected input method.
- current: false,
-
- // enum
- LoadStatus: { NotLoaded:0, Loading:1, Loaded:2, Error:-1 },
- ChangedStatus: {
- None: 0x00,
- StateTitle: 0x01,
- PreeditText:0x02,
- CursorPos: 0x04,
- CandidateList:0x08,
- CandidateIndex:0x10,
- CandidateShow:0x20,
- Preedit: 0x06, // PreeditText | CursorPos
- Candidate: 0x38 // CandidateList | CandidateIndex | CandidateShow
- },
- KeyModifier: {
- SL: 0x00400000,
- SR: 0x00800000,
- S: 0x00C00000,
- CL: 0x01000000,
- CR: 0x02000000,
- C: 0x03000000,
- AL: 0x04000000,
- AR: 0x08000000,
- A: 0x0C000000,
- ML: 0x04000000,
- MR: 0x08000000,
- M: 0x0C000000,
- G: 0x10000000,
- s: 0x20000000,
- H: 0x40000000,
- High: 0x70000000,
- All: 0x7FC00000
- },
- Error: {
- ParseError: "parse-error"
- }
-};
-
-(function () {
- var keysyms = new Array ();
- keysyms["bs"] = "backspace";
- keysyms["lf"] = "linefeed";
- keysyms["cr"] = keysyms["enter"] = "return";
- keysyms["esc"] = "escape";
- keysyms["spc"] = "space";
- keysyms["del"] = "delete";
-
- function decode_keysym (str) {
- var parts = str.split ("-");
- var len = parts.length, i;
- var has_modifier = len > 1;
-
- for (i = 0; i < len - 1; i++)
- if (! MIM.KeyModifier.hasOwnProperty (parts[i]))
- return false;
- var key = parts[len - 1];
- if (key.length > 1)
- {
- key = keysyms[key.toLowerCase ()];
- if (key)
- {
- if (len > 1)
- {
- str = parts[0];
- for (i = 1; i < len - 1; i++)
- str += '-' + parts[i];
- str += '-' + key;
- }
- else
- str = key;
- }
- }
- if (has_modifier)
- {
- parts = new Array ();
- parts.push (str);
- return parts;
- }
- return str;
- }
-
- MIM.Key = function (val)
- {
- this.key;
- this.has_modifier = false;
- if (typeof val == 'string' || val instanceof String)
- {
- this.key = decode_keysym (val);
- if (! this.key)
- throw new Xex.ErrTerm (MIM.Error.ParseError, "Invalid key: " + val);
- if (this.key instanceof Array)
- {
- this.key = this.key[0];
- this.has_modifier = true;
- }
- }
- else if (typeof val == 'number' || val instanceof Number)
- this.key = String.fromCharCode (val);
- else
- throw new Xex.ErrTerm (MIM.Error.ParseError, "Invalid key: " + val);
- }
-
- MIM.Key.prototype.toString = function () { return this.key; };
-}) ();
-
-(function () {
- MIM.KeySeq = function (seq)
- {
- this.val = new Array ();
- this.has_modifier = false;
-
- if (seq)
- {
- if (seq.IsList)
- {
- var len = seq.val.length;
- for (var i = 0; i < len; i++)
- {
- var v = seq.val[i];
- if (v.type != 'string' && v.type != 'integer'
- && v.type != 'symbol')
- throw new Xex.ErrTerm (MIM.Error.ParseError,
- "Invalid key: " + v);
- var key = new MIM.Key (v.val);
- this.val.push (key);
- if (key.has_modifier)
- this.has_modifier = true;
- }
- }
- else if (seq.IsStr)
- {
- var len = seq.val.length;
- for (var i = 0; i < len; i++)
- this.val.push (new MIM.Key (seq.val.charCodeAt (i)));
- }
- else
- throw new Xex.ErrTerm (MIM.Error.ParseError, "Invalid key: " + seq);
- }
- }
-
- var proto = new Xex.Term ('keyseq');
- proto.Clone = function () { return this; }
- proto.Parser = function (domain, node)
- {
- var seq = new Array ();
- for (node = node.firstChild; node; node = node.nextSibling)
- if (node.nodeType == 1)
- {
- var term = Xex.Term.Parse (domain, node);
- return new MIM.KeySeq (term);
- }
- throw new Xex.ErrTerm (MIM.Error.ParseError, "Invalid keyseq");
- }
- proto.toString = function ()
- {
- var len = this.val.length;
- if (len == 0)
- return '<keyseq/>';
- var first = true;
- var str = '<keyseq>';
- for (var i = 0; i < len; i++)
- {
- if (first)
- first = false;
- else if (this.has_modifier)
- str += ' ';
- str += this.val[i].toString ();
- }
- return str + '</keyseq>';
- }
-
- MIM.KeySeq.prototype = proto;
-}) ();
-
-(function () {
- MIM.Marker = function () { }
- MIM.Marker.prototype = new Xex.Term ('marker');
- MIM.Marker.prototype.CharAt = function (ic)
- {
- var p = this.Position (ic);
- if (p < 0 || p >= ic.preedit.length)
- return 0;
- return ic.preedit.charCodeAt (p);
- }
-
- MIM.NamedMarker = function (name) { this.val = name; }
- MIM.NamedMarker.prototype = new MIM.Marker ();
- MIM.NamedMarker.prototype.Position = function (ic)
- {
- var p = ic.marker_positions[this.val];
- return (p == undefined ? 0 : p);
- }
- MIM.NamedMarker.prototype.Mark = function (ic)
- {
- ic.marker_positions[this.val] = ic.cursor_pos;
- }
-
- MIM.PredefinedMarker = function (name) { this.val = name; }
- MIM.PredefinedMarker.prototype = new MIM.Marker ();
- MIM.PredefinedMarker.prototype.Position = function (ic)
- {
- if (typeof this.pos == 'number')
- return this.pos;
- return this.pos (ic);
- }
-
- var predefined = { }
-
- function def_predefined (name, position)
- {
- predefined[name] = new MIM.PredefinedMarker (name);
- predefined[name].pos = position;
- }
-
- def_predefined ('@<', 0);
- def_predefined ('@>', function (ic) { return ic.preedit.length; });
- def_predefined ('@-', function (ic) { return ic.cursor_pos - 1; });
- def_predefined ('@+', function (ic) { return ic.cursor_pos + 1; });
- def_predefined ('@[', function (ic) {
- if (ic.cursor_pos > 0)
- {
- var pos = ic.cursor_pos;
- return ic.preedit.FindProp ('candidates', pos - 1).from;
- }
- return 0;
- });
- def_predefined ('@]', function (ic) {
- if (ic.cursor_pos < ic.preedit.length - 1)
- {
- var pos = ic.cursor_pos;
- return ic.preedit.FindProp ('candidates', pos).to;
- }
- return ic.preedit.length;
- });
- for (var i = 0; i < 10; i++)
- def_predefined ("@" + i, i);
- predefined['@first'] = predefined['@<'];
- predefined['@last'] = predefined['@>'];
- predefined['@previous'] = predefined['@-'];
- predefined['@next'] = predefined['@+'];
- predefined['@previous-candidate-change'] = predefined['@['];
- predefined['@next-candidate-change'] = predefined['@]'];
-
- MIM.SurroundMarker = function (name)
- {
- this.val = name;
- this.distance = parseInt (name.slice (1));
- if (isNaN (this.distance))
- throw new Xex.ErrTerm (MIM.Error.ParseError, "Invalid marker: " + name);
- }
- MIM.SurroundMarker.prototype = new MIM.Marker ();
- MIM.SurroundMarker.prototype.Position = function (ic)
- {
- return ic.cursor_pos + this.distance;
- }
- MIM.SurroundMarker.prototype.CharAt = function (ic)
- {
- if (this.val == '@-0')
- return -1;
- var p = this.Position (ic);
- if (p < 0)
- return ic.GetSurroundingChar (p);
- else if (p >= ic.preedit.length)
- return ic.GetSurroundingChar (p - ic.preedit.length);
- return ic.preedit.charCodeAt (p);
- }
-
- MIM.Marker.prototype.Parser = function (domain, node)
- {
- var name = node.firstChild.nodeValue;
- if (name.charAt (0) == '@')
- {
- var n = predefined[name];
- if (n)
- return n;
- if (name.charAt (1) == '-')
- return new MIM.SurroundMarker (name);
- throw new Xex.ErrTerm (MIM.Error.ParseError,
- "Invalid marker: " + name);
- }
- return new MIM.NamedMarker (name);
- }
-}) ();
-
-MIM.Selector = function (name)
-{
- this.val = name;
-}
-MIM.Selector.prototype = new Xex.Term ('selector');
-
-(function () {
- var selectors = {};
- selectors["@<"] = selectors["@first"] = new MIM.Selector ('@<');
- selectors["@="] = selectors["@current"] = new MIM.Selector ('@=');
- selectors["@>"] = selectors["@last"] = new MIM.Selector ('@>');
- selectors["@-"] = selectors["@previous"] = new MIM.Selector ('@-');
- selectors["@+"] = selectors["@next"] = new MIM.Selector ('@+');
- selectors["@["] = selectors["@previous-candidate-change"]
- = new MIM.Selector ('@[');
- selectors["@]"] = selectors["@next-candidate-change"]
- = new MIM.Selector ('@]');
-
- MIM.Selector.prototype.Parser = function (domain, node)
- {
- var name = node.firstChild.nodeValue;
- var s = selectors[name];
- if (! s)
- throw new Xex.ErrTerm (MIM.Error.ParseError,
- "Invalid selector: " + name);
- return s;
- }
-}) ();
-
-MIM.Rule = function (keyseq, actions)
-{
- this.keyseq = keyseq;
- this.actions = actions;
-}
-MIM.Rule.prototype = new Xex.Term ('rule');
-MIM.Rule.prototype.Parser = function (domain, node)
-{
- var n;
- for (n = node.firstChild; n && n.nodeType != 1; n = n.nextSibling);
- if (! n)
- throw new Xex.ErrTerm (MIM.Error.ParseError, "invalid rule:" + node);
- var keyseq = Xex.Term.Parse (domain, n);
- if (keyseq.type != 'keyseq')
- throw new Xex.ErrTerm (MIM.Error.ParseError, "invalid rule:" + node);
- var actions = Xex.Term.Parse (domain, n.nextElement (), null);
- return new MIM.Rule (keyseq, actions);
-}
-MIM.Rule.prototype.toString = function ()
-{
- return '<rule/>';
-}
-
-MIM.Map = function (name)
-{
- this.name = name;
- this.rules = new Array ();
-};
-
-(function () {
- var proto = new Xex.Term ('map');
-
- proto.Parser = function (domain, node)
- {
- var name = node.attributes['mname'].nodeValue;
- if (! name)
- throw new Xex.ErrTerm (MIM.Error.ParseError, "invalid map");
- var map = new MIM.Map (name);
- for (var n = node.firstChild; n; n = n.nextSibling)
- if (n.nodeType == 1)
- map.rules.push (Xex.Term.Parse (domain, n));
- return map;
- }
-
- proto.toString = function ()
- {
- var str = '<map mname="' + this.name + '">';
- var len = this.rules.length;
- for (i = 0; i < len; i++)
- str += this.rules[i];
- return str + '</map>';
- }
-
- MIM.Map.prototype = proto;
-}) ();
-
-Xex.CatchTag._mimtag = new Xex.SymTerm ('@mimtag');
-
-MIM.Action = function (domain, terms)
-{
- var args = new Array ();
- args.push (Xex.CatchTag_.mimtag);
- for (var i = 0; i < terms.length; i++)
- args.push (terms[i]);
- this.action = Xex.Funcall.prototype.New (domain, 'catch', null, args);
+ return (obj.responseXML && obj.responseXML.firstChild);
}
-
-MIM.Action.prototype.Run = function (domain)
-{
- var result = this.action.Eval (domain);
- if (result.type == 'error')
- {
- domain.context.Error = result.toString ();
- return false;
- }
- return (result != Xex.CatchTag._mimtag);
-}
-
-MIM.Keymap = function ()
-{
- this.name = 'TOP';
- this.submaps = null;
- this.actions = null;
-};
-
-(function () {
- var proto = {};
-
- function add_rule (keymap, rule)
- {
- var keyseq = rule.keyseq;
- var len = keyseq.val.length;
- var name = '';
-
- for (var i = 0; i < len; i++)
- {
- var key = keyseq.val[i];
- var sub = false;
-
- name += key.key;
- if (! keymap.submaps)
- keymap.submaps = {};
- else
- sub = keymap.submaps[key.key];
- if (! sub)
- keymap.submaps[key.key] = sub = new MIM.Keymap ();
- keymap = sub;
- keymap.name = name;
- }
- keymap.actions = rule.actions;
- }
-
- proto.Add = function (map)
- {
- var rules = map.rules;
- var len = rules.length;
-
- for (var i = 0; i < len; i++)
- add_rule (this, rules[i]);
- }
- proto.Lookup = function (keys, index)
- {
- var sub;
-
- if (index < keys.val.length && this.submaps
- && (sub = this.submaps[keys.val[index].key]))
- {
- index++;
- return sub.Lookup (keys, index);
- }
- return { map: this, index: index };
- }
-
- MIM.Keymap.prototype = proto;
-}) ();
-
-MIM.State = function (name)
-{
- this.name = name;
- this.keymap = new MIM.Keymap ();
-};
-
-(function () {
- var proto = new Xex.Term ('state');
-
- proto.Parser = function (domain, node)
- {
- var map_list = domain.map_list;
- var name = node.attributes['sname'].nodeValue;
- if (! name)
- throw new Xex.ErrTerm (MIM.Error.ParseError, "invalid map");
- var state = new MIM.State (name);
- for (node = node.firstElement (); node; node = node.nextElement ())
- {
- if (node.nodeName == 'title')
- state.title = node.firstChild.nodeValue;
- else
- {
- var n = node.firstElement ();
- if (node.nodeName == 'branch')
- {
- state.keymap.Add (map_list[node.attributes['mname'].nodeValue]);
- state.keymap.actions = Xex.Term.Parse (domain, n, null);
- }
- else if (node.nodeName == 'state-hook')
- state.enter_actions = Xex.Term.Parse (domain, n, null);
- else if (node.nodeName == 'catch-all-branch')
- state.fallback_actions = Xex.Term.Parse (domain, n, null);
- }
- }
- return state;
- }
-
- proto.toString = function ()
- {
- return '<state sname="' + this.name + '">' + this.keymap + '</state>';
- }
-
- MIM.State.prototype = proto;
-}) ();
-
-(function () {
- function Block (index, term)
- {
- this.Index = index;
- if (term.IsStr)
- this.Data = term.val;
- else if (term.IsList)
- {
- this.Data = new Array ();
- for (var i = 0; i < term.val.length; i++)
- this.Data.push (term.val[i].val);
- }
- }
-
- Block.prototype.Count = function () { return this.Data.length; }
- Block.prototype.get = function (i)
- {
- return (this.Data instanceof Array ? this.Data[i] : this.Data.charAt (i));
- }
-
- MIM.Candidates = function (candidates, column)
- {
- this.column = column;
- this.row = 0;
- this.index = 0;
- this.total = 0;
- this.blocks = new Array ();
-
- for (var i = 0; i < candidates.length; i++)
- {
- var block = new Block (this.total, candidates[i]);
- this.blocks.push (block);
- this.total += block.Count ();
- }
- }
-
- function get_col ()
- {
- return (this.column > 0 ? this.index % this.column
- : this.index - this.blocks[this.row].Index);
- }
-
- function prev_group ()
- {
- var col = get_col.call (this);
- var nitems;
- if (this.column > 0)
- {
- this.index -= this.column;
- if (this.index >= 0)
- nitems = this.column;
- else
- {
- var lastcol = (this.total - 1) % this.column;
- this.index = (col < lastcol ? this.total - lastcol + col
- : this.total - 1);
- this.row = this.blocks.length - 1;
- nitems = lastcol + 1;
- }
- while (this.blocks[this.row].Index > this.index)
- this.row--;
- }
- else
- {
- this.row = this.row > 0 ? this.row - 1 : this.blocks.length - 1;
- nitems = this.blocks[this.row].Count ();
- this.index = (this.blocks[this.row].Index
- + (col < nitems ? col : nitems - 1));
- }
- return nitems;
- }
-
- function next_group ()
- {
- var col = get_col.call (this);
- var nitems;
- if (this.column > 0)
- {
- this.index += this.column - col;
- if (this.index < this.total)
- {
- if (this.index + col >= this.total)
- {
- nitems = this.total - this.index;
- this.index = this.total - 1;
- }
- else
- {
- nitems = this.column;
- this.index += col;
- }
- }
- else
- {
- this.index = col;
- this.row = 0;
- }
- while (this.blocks[this.row].Index > this.index)
- this.row++;
- }
- else
- {
- this.row = this.row < this.blocks.length - 1 ? this.row + 1 : 0;
- nitems = this.blocks[this.row].Count ();
- this.index = (this.blocks[this.row].Index
- + (col < nitems ? col : nitems - 1));
- }
- return nitems;
- }
-
- function prev ()
- {
- if (this.index == 0)
- {
- this.index = this.total - 1;
- this.row = this.blocks.length - 1;
- }
- else
- {
- this.index--;
- if (this.blocks[this.row].Index > this.index)
- this.row--;
- }
- }
-
- function next ()
- {
- this.index++;
- if (this.index == this.total)
- {
- this.index = 0;
- this.row = 0;
- }
- else
- {
- var b = this.blocks[this.row];
- if (this.index == b.Index + b.Count ())
- this.row++;
- }
- }
-
- function first ()
- {
- this.index -= get_col.call (this);
- while (this.blocks[this.row].Index > this.index)
- this.row--;
- }
-
- function last ()
- {
- var b = this.blocks[this.row];
- if (this.column > 0)
- {
- if (this.index + 1 < this.total)
- {
- this.index += this.column - get_col.call (this) + 1;
- while (b.Index + b.Count () <= this.index)
- b = this.blocks[++this.row];
- }
- }
- else
- this.index = b.Index + b.Count () - 1;
- }
-
- MIM.Candidates.prototype.Current = function ()
- {
- var b = this.blocks[this.row];
- return b.get (this.index - b.Index);
- }
-
- MIM.Candidates.prototype.Select = function (selector)
- {
- if (selector.type == 'selector')
- {
- switch (selector.val)
- {
- case '@<': first.call (this); break;
- case '@>': last.call (this); break;
- case '@-': prev.call (this); break;
- case '@+': next.call (this); break;
- case '@[': prev_group.call (this); break;
- case '@]': next_group.cal (this); break;
- default: break;
- }
- return this.Current ();
- }
- var col, start, end
- if (this.column > 0)
- {
- col = this.index % this.column;
- start = this.index - col;
- end = start + this.column;
- }
- else
- {
- start = this.blocks[this.row].Index;
- col = this.index - start;
- end = start + this.blocks[this.row].Count;
- }
- if (end > this.total)
- end = this.total;
- this.index += selector.val - col;
- if (this.index >= end)
- this.index = end - 1;
- if (this.column > 0)
- {
- if (selector.val > col)
- while (this.blocks[this.row].Index + this.blocks[this.row].Count
- < this.index)
- this.row++;
- else
- while (this.blocks[this.row].Index > this.index)
- this.row--;
- }
- return this.Current ();
- }
-}) ();
-
-MIM.im_domain = new Xex.Domain ('input-method', null, null);
-MIM.im_domain.DefType (MIM.KeySeq.prototype);
-MIM.im_domain.DefType (MIM.Marker.prototype);
-MIM.im_domain.DefType (MIM.Selector.prototype);
-MIM.im_domain.DefType (MIM.Rule.prototype);
-MIM.im_domain.DefType (MIM.Map.prototype);
-MIM.im_domain.DefType (MIM.State.prototype);
-
-(function () {
- var im_domain = MIM.im_domain;
-
- function Finsert (domain, vari, args)
- {
- var text;
- if (args[0].type == 'integer')
- text = String.fromCharCode (args[0].val);
- else
- text = args[0].val;
- domain.context.insert (text, null);
- }
-
- function Finsert_candidates (domain, vari, args)
- {
- var ic = domain.context;
- var gsize = domain.variables['candidates_group_size'];
- var candidates = new MIM.Candidates (args, gsize ? gsize.Intval : 0);
- ic.insert (candidates.Current (), candidates);
- return args[0];
- }
-
- function Fdelete (domain, vari, args)
- {
- var ic = domain.context;
- var pos = args[0].IsInt ? args[0].Intval : args[0].Position (ic);
- ic.del (pos);
- return new Xex.Term (ic.del (pos));
- }
-
- function Fselect (domain, vari, args)
- {
- var ic = domain.context;
- var can = ic.candidates;
-
- if (can)
- {
- var candidate = can.Current ();
-
- ic.del (ic.cursor_pos - candidate.length);
- candidate = can.Select (args[0]);
- ic.insert (candidate, can);
- }
- return args[0];
- }
-
- function Fchar_at (domain, vari, args)
- {
- return new Xex.IntTerm (args[0].CharAt (domain.context));
- }
-
- function Fmove (domain, vari, args)
- {
- var ic = domain.context;
- var pos = args[0].IsInt ? args[0].val : args[0].Position (ic);
- ic.move (pos);
- return args[0];
- }
-
- function Fmark (domain, vari, args)
- {
- args[0].Mark (domain.context);
- return args[0];
- }
-
- function Fpushback (domain, vari, args)
- {
- var arg = (args[0].IsInt ? args[0].Intval
- : args[0].IsStr ? new KeySeq (args[0])
- : args[0]);
- domain.context.pushback (arg)
- return args[0];
- }
-
- function Fundo (domain, vari, args)
- {
- var ic = domain.context;
- var n = args.length == 0 ? -2 : args[0].val;
- if (n < 0)
- ic.keys.val.splice (ic.keys.length + n, -n);
- else
- ic.keys.val.splice (n, ic.keys.length);
- ic.reset ();
- return Xex.nil;
- }
-
- function Fcommit (domain, vari, args)
- {
- domain.context.commit ();
- return Xex.nil;
- }
-
- function Funhandle (domain, vari, args)
- {
- domain.context.commit ();
- return Xex.Fthrow (domain, vari, Xex.CatchTag._mimtag);
- }
-
- function Fshift (domain, vari, args)
- {
- var ic = domain.context;
- var state_name = args[0].val;
- var state = ic.im.state_list[state_name];
- if (! state)
- throw ("Unknown state: " + state_name);
- ic.shift (state);
- return args[0];
- }
-
- function Fsurrounding_flag (domain, vari, args)
- {
- return new Xex.IntTerm (-1);
- }
-
- im_domain.DefSubr (Finsert, "insert", false, 1, 1);
- im_domain.DefSubr (Finsert_candidates, "insert-candidates", false, 1, 1);
- im_domain.DefSubr (Fdelete, "delete", false, 1, 1);
- im_domain.DefSubr (Fselect, "select", false, 1, 1);
- //im_domain.DefSubr (Fshow, "show-candidates", false, 0, 0);
- //im_domain.DefSubr (Fhide, "hide-candidates", false, 0, 0);
- im_domain.DefSubr (Fmove, "move", false, 1, 1);
- im_domain.DefSubr (Fmark, "mark", false, 1, 1);
- im_domain.DefSubr (Fpushback, "pushback", false, 1, 1);
- //im_domain.DefSubr (Fpop, "pop", false, 0, 0);
- im_domain.DefSubr (Fundo, "undo", false, 0, 1);
- im_domain.DefSubr (Fcommit, "commit", false, 0, 0);
- im_domain.DefSubr (Funhandle, "unhandle", false, 0, 0);
- im_domain.DefSubr (Fshift, "shift", false, 1, 1);
- //im_domain.DefSubr (Fshiftback, "shiftback", false, 0, 0);
- im_domain.DefSubr (Fchar_at, "char-at", false, 1, 1);
- //im_domain.DefSubr (Fkey_count, "key-count", false, 0, 0);
- im_domain.DefSubr (Fsurrounding_flag, "surrounding-text-flag", false, 0, 0);
-}) ();
-
-
-(function () {
- function get_global_var (vname)
- {
- if (MIM.im_global.load_status == MIM.LoadStatus.NotLoaded)
- MIM.im_global.Load ()
- return MIM.im_global.domain.variables[vname];
- }
-
- function include (node)
- {
- node = node.firstElement ();
- if (node.nodeName != 'tags')
- return null;
-
- var lang = null, name = null, extra = null;
- for (node = node.firstElement (); node; node = node.nextElement ())
- {
- if (node.nodeName == 'language')
- lang = node.firstChild.nodeValue;
- else if (node.nodeName == 'name')
- name = node.firstChild.nodeValue;
- else if (node.nodeName == 'extra-id')
- extra = node.firstChild.nodeValue;
- }
- if (! lang || ! MIM.imlist[lang])
- return null;
- if (! extra)
- {
- if (! name || ! (im = MIM.imlist[lang][name]))
- return null;
- }
- else
- {
- if (! (im = MIM.imextra[lang][extra]))
- return null;
- }
- if (im.load_status != MIM.LoadStatus.Loaded
- && (im.load_status != MIM.LoadStatus.NotLoaded || ! im.Load ()))
- return null;
- return im;
- }
-
- var parsers = { };
-
- parsers['description'] = function (node)
- {
- this.description = node.firstChild.nodeValue;
- }
- parsers['variable-list'] = function (node)
- {
- for (node = node.firstElement (); node; node = node.nextElement ())
- {
- var vname = node.attributes['vname'].nodeValue;
- if (this != MIM.im_global)
- {
- var vari = get_global_var (vname);
- if (vari != null)
- this.domain.Defvar (vname);
- }
- vname = Xex.Term.Parse (this.domain, node)
- }
- }
- parsers['command-list'] = function (node)
- {
- }
- parsers['macro-list'] = function (node)
- {
- for (var n = node.firstElement (); n; n = n.nextElement ())
- if (n.nodeName == 'xi:include')
- {
- var im = include (n);
- if (! im)
- alert ('inclusion fail');
- else
- for (var macro in im.domain.functions)
- {
- var func = im.domain.functions[macro];
- if (func instanceof Xex.Macro)
- im.domain.CopyFunc (this.domain, macro);
- }
- n = n.previousSibling;
- node.removeChild (n.nextSibling);
- }
- Xex.Term.Parse (this.domain, node.firstElement (), null);
- }
- parsers['title'] = function (node)
- {
- this.title = node.firstChild.nodeValue;
- }
- parsers['map-list'] = function (node)
- {
- for (node = node.firstElement (); node; node = node.nextElement ())
- {
- if (node.nodeName == 'xi:include')
- {
- var im = include (node);
- if (! im)
- {
- alert ('inclusion fail');
- continue;
- }
- for (var mapname in im.map_list)
- this.map_list[mapname] = im.map_list[mapname];
- }
- else
- {
- var map = Xex.Term.Parse (this.domain, node);
- this.map_list[map.name] = map;
- }
- }
- }
- parsers['state-list'] = function (node)
- {
- this.domain.map_list = this.map_list;
- for (node = node.firstElement (); node; node = node.nextElement ())
- {
- if (node.nodeName == 'state')
- {
- var state = Xex.Term.Parse (this.domain, node);
- if (! state.title)
- state.title = this.title;
- if (! this.initial_state)
- this.initial_state = state;
- this.state_list[state.name] = state;
- }
- }
- delete this.domain.map_list;
- }
-
- MIM.IM = function (lang, name, extra_id, file)
- {
- this.lang = lang;
- this.name = name;
- this.extra_id = extra_id;
- this.file = file;
- this.load_status = MIM.LoadStatus.NotLoaded;
- this.domain = new Xex.Domain (this.lang + '-'
- + (this.name != 'nil'
- ? this.name : this.extra_id),
- MIM.im_domain, null);
- }
-
- var proto = {
- Load: function ()
- {
- var node = Xex.Load (null, this.file);
- if (! node)
- {
- this.load_status = MIM.LoadStatus.Error;
- return false;
- }
- this.map_list = {};
- this.initial_state = null;
- this.state_list = {};
- for (node = node.firstElement (); node; node = node.nextElement ())
- {
- var name = node.nodeName;
- var parser = parsers[name];
- if (parser)
- parser.call (this, node);
- }
- this.load_status = MIM.LoadStatus.Loaded;
- return true;
- }
- }
-
- MIM.IM.prototype = proto;
-
- MIM.IC = function (im, target)
- {
- if (im.load_status == MIM.LoadStatus.NotLoaded)
- im.Load ();
- if (im.load_status != MIM.LoadStatus.Loaded)
- alert ('im:' + im.name + ' error:' + im.load_status);
- this.im = im;
- this.target = target;
- this.domain = new Xex.Domain ('context', im.domain, this);
- this.active = true;
- this.reset ();
- this.spot = 0;
- }
-
- MIM.CandidateTable = function ()
- {
- this.table = new Array ();
- }
-
- MIM.CandidateTable.prototype.get = function (from)
- {
- for (var i = 0; i < this.table.length; i++)
- {
- var elt = this.table[i];
- if (elt.from <= from && elt.to > from)
- return elt.val;
- }
- }
-
- MIM.CandidateTable.prototype.put = function (from, to, candidates)
- {
- for (var i = 0; i < this.table.length; i++)
- {
- var elt = this.table[i];
- if (elt.from >= from && elt.from < to
- || elt.to >= from && elt.to < to)
- {
- elt.from = from;
- elt.to = to;
- elt.val = candidates;
- return;
- }
- }
- this.table.push ({ from: from, to: to, val: candidates });
- }
-
- MIM.CandidateTable.prototype.adjust = function (from, to, inserted)
- {
- var diff = inserted - (to - from);
- for (var i = 0; i < this.table.length; i++)
- {
- var elt = this.table[i];
- if (elt.from >= to)
- {
- elt.from += diff;
- elt.to += diff;
- }
- }
- }
-
- MIM.CandidateTable.prototype.clear = function ()
- {
- this.table.length = 0;
- }
-
- function detach_candidates (ic)
- {
- ic.candidate_table.clear ();
- ic.candidates = null;
- ic.changed |= (MIM.ChangedStatus.Preedit | MIM.ChangedStatus.CursorPos
- | ChangedStatus.CandidateList
- | ChangedStatus.CandidateIndex
- | ChangedStatus.CandidateShow);
- }
-
- function set_cursor (prefix, pos)
- {
- this.cursor_pos = pos;
- if (pos > 0)
- this.candidates = this.candidate_table.get (pos - 1);
- else
- this.candidates = null;
- }
-
- function save_state ()
- {
- this.state_var_values = this.domain.SaveValues ();
- this.state_preedit = this.preedit;
- this.state_key_head = this.key_head;
- this.state_pos = this.cursor_pos;
- }
-
- function restore_state ()
- {
- this.domain.RestoreValues (this.state_var_values);
- this.preedit = this.state_preedit;
- set_cursor.call (this, "restore", this.state_pos);
- }
-
- function handle_key ()
- {
- var out = this.keymap.Lookup (this.keys, this.key_head);
- var sub = out.map;
- var branch_actions = this.state.keymap.actions;
-
- Xex.Log ('handling ' + this.keys.val[this.key_head]
- + ' in ' + this.state.name + ':' + this.keymap.name + "\n");
- this.key_head = out.index;
- if (sub != this.keymap)
- {
-
- restore_state.call (this);
- this.keymap = sub;
- Xex.Log ('submap found\n');
- if (this.keymap.actions)
- {
- Xex.Log ('taking map actions:\n');
- if (! this.take_actions (this.keymap.actions))
- return false;
- }
- else if (this.keymap.submaps)
- {
- Xex.Log ('no map actions');
- for (var i = this.state_key_head; i < this.key_head; i++)
- {
- Xex.Log ('inserting key:' + this.keys.val[i].key);
- this.insert (this.keys.val[i].key, null);
- }
- }
- if (! this.keymap.submaps)
- {
- Xex.Log ('terminal:');
- if (this.keymap.branch_actions != null)
- {
- Xex.Log ('branch actions:');
- if (! this.take_actions (branch_actions))
- return false;
- }
- if (this.keymap != this.state.keymap)
- this.shift (this.state);
- }
- }
- else
- {
- Xex.Log ('no submap');
- var current_state = this.state;
- var map = this.keymap;
-
- if (branch_actions)
- {
- Xex.Log ('branch actions');
- if (! this.take_actions (this.keymap.branch_actions))
- return false;
- }
-
- if (map == this.keymap)
- {
- Xex.Log ('no state change');
- if (map == this.initial_state.keymap
- && this.key_head < this.keys.val.length)
- {
- Xex.Log ('unhandled');
- return false;
- }
- if (this.keymap != current_state.keymap)
- this.shift (current_state);
- else if (this.keymap.actions == null)
- this.shift (this.initial_state);
- }
- }
- return true;
- }
-
- proto = {
- reset: function ()
- {
- this.produced = null;
- this.preedit = '';
- this.preedit_saved = '';
- this.cursor_pos = 0;
- this.marker_positions = {};
- this.candidates = null;
- this.candidate_show = false;
- this.state = null;
- this.prev_state = null;
- this.initial_state = this.im.initial_state;
- this.title = this.initial_state.title;
- this.state_preedit = '';
- this.state_key_head = 0;
- this.state_var_values = {};
- this.state_pos = 0;
- this.keymap = null;
- this.keys = new MIM.KeySeq ();
- this.key_head = 0;
- this.key_unhandled = false;
- this.unhandled_key = null;
- this.changed = MIM.ChangedStatus.None;
- this.error_message = '';
- this.title = this.initial_state.title;
- this.produced = '';
- this.preedit = '';
- this.preedit_saved = '';
- this.marker_positions = {};
- this.candidate_table = new MIM.CandidateTable ();
- this.candidates = null;
- this.candidate_show = false;
- this.shift (this.initial_state);
- },
-
- catch_args: new Array (Xex.CatchTag._mimtag, null),
-
- take_actions: function (actions)
- {
- var func_progn = this.domain.GetFunc ('progn');
- var func_catch = this.domain.GetFunc ('catch');
- this.catch_args[1] = new Xex.Funcall (func_progn, null, actions);
- var term = new Xex.Funcall (func_catch, null, this.catch_args);
- term = term.Eval (this.domain);
- return (! term.IsSymbol || term.val != '@mimtag');
- },
-
- GetSurroundingChar: function (pos)
- {
- pos += this.spot;
- Xex.Log (0, 'getting char at ' + pos);
- if (pos < 0 || pos >= this.target.value.length)
- return 0;
- return this.target.value.charCodeAt (pos);
- },
-
- adjust_markers: function (from, to, inserted)
- {
- var diff = inserted - (to - from);
-
- for (var m in this.marker_positions)
- if (this.marker_positions[m] > from)
- this.marker_positions[m] = (this.marker_positions[m] >= to
- ? pos + diff : from);
- if (this.cursor_pos >= to)
- set_cursor.call (this, 'adjust', this.cursor_pos + diff);
- else if (this.cursor_pos > from)
- set_cursor.call (this, 'adjust', from)
- },
-
- preedit_replace: function (from, to, text, candidates)
- {
- this.preedit = (this.preedit.substring (0, from)
- + text + this.preedit.substring (to));
- this.adjust_markers (from, to, text.length);
- this.candidate_table.adjust (from, to, text.length);
- if (candidates)
- this.candidate_table.put (from, from + text.length, candidates)
- },
-
- insert: function (text, candidates)
- {
- this.preedit_replace (this.cursor_pos, this.cursor_pos, text, candidates);
- this.changed = MIM.ChangedStatus.Preedit | MIM.ChangedStatus.CursorPos;
- },
-
- del: function (pos)
- {
- var deleted = pos - this.cursor_pos;
- if (pos < 0)
- {
- this.DelSurroundText (pos);
- pos = 0;
- }
- else if (pos > this.preedit.length)
- {
- this.DelSurroundText (pos - this.preedit.length);
- pos = this.preedit.length;
- }
- if (pos < this.cursor_pos)
- this.preedit = (this.predit.substring (0, pos)
- + this.preedit.substring (this.cursor_pos));
- else
- this.preedit = (this.preedit.substring (0, this.cursor_pos)
- + this.predit.substring (pos));
- return deleted;
- },
-
- show: function ()
- {
- this.candidate_show = true;
- this.changed |= MIM.ChangedStatus.CandidateShow;
- },
-
- hide: function ()
- {
- this.candidate_show = false;
- this.changed |= MIM.ChangedStatus.CandidateShow;
- },
-
- move: function (pos)
- {
- if (pos < 0)
- pos = 0;
- else if (pos > this.preedit.length)
- pos = this.preedit.length;
- if (pos != this.cursor_pos)
- {
- set_cursor.call (this, 'move', pos);
- this.changed |= MIM.ChangedStatus.Preedit;
- }
- },
-
- pushback: function (n)
- {
- if (n instanceof MIM.KeySeq)
- {
- if (this.key_head > 0)
- this.key_head--;
- if (this.key_head < this.keys.val.length)
- this.keys.val.splice (this.key_head,
- this.keys.val.length - this.key_head);
- for (var i = 0; i < n.val.length; i++)
- this.keys.val.push (n.val[i]);
- return;
- }
- if (n > 0)
- {
- this.key_head -= n;
- if (this.key_head < 0)
- this.key_head = 0;
- }
- else if (n == 0)
- this.key_head = 0;
- else
- {
- this.key_head = - n;
- if (this.key_head > this.keys.val.length)
- this.key_head = this.keys.val.length;
- }
- },
-
- pop: function ()
- {
- if (this.key_head < this.keys.val.length)
- this.keys.val.splice (this.key_head, 1);
- },
-
- commit: function ()
- {
- if (this.preedit.length > 0)
- {
- this.candidate_table.clear ();
- this.produced += this.preedit;
- this.preedit_replace.call (this, 0, this.preedit.length, '', null);
- }
- },
-
- shift: function (state)
- {
- if (state == null)
- {
- Xex.Log ("shifting back to previous");
- if (this.prev_state == null)
- return;
- state = this.prev_state;
- }
- else
- Xex.Log ("shifting to " + state.name);
-
- if (state == this.initial_state)
- {
- if (this.state)
- {
- this.commit ();
- this.keys.val.splice (0, this.key_head);
- this.key_head = 0;
- this.prev_state = null;
- }
- }
- else
- {
- if (state != this.state)
- this.prev_state = this.state;
- }
- if (state != this.state && state.enter_actions)
- this.take_actions (state.enter_actions);
- if (! this.state || this.state.title != state.title)
- this.changed |= MIM.ChangedStatus.StateTitle;
- this.state = state;
- this.keymap = state.keymap;
- this.state_key_head = this.key_head;
- save_state.call (this);
- },
-
- Filter: function (key)
- {
- if (! this.active)
- {
- this.key_unhandled = true;
- this.unhandled_key = key;
- return false;
- }
- if (key.key == '_reload')
- return true;
- this.changed = MIM.ChangedStatus.None;
- this.produced = '';
- this.key_unhandled = false;
- this.keys.val.push (key);
- var count = 0;
- while (this.key_head < this.keys.val.length)
- {
- if (! handle_key.call (this))
- {
- if (this.key_head < this.keys.val.length)
- {
- this.unhandled_key = this.keys.val[this.key_head];
- this.keys.val.splice (this.key_head, this.key_head + 1);
- }
- this.key_unhandled = true;
- break;
- }
- if (++count == 10)
- {
- this.reset ();
- this.key_unhandled = true;
- break;
- }
- }
- if (this.key_unhandled)
- {
- this.keys.val.length = 0;
- this.key_head = this.state_key_head = this.commit_key_head = 0;
- }
- return (! this.key_unhandled
- && this.produced.length == 0
- && this.preedit.length == 0);
- }
- }
-
- MIM.IC.prototype = proto;
-
- var node = Xex.Load (null, "imlist.xml");
- for (node = node.firstChild; node; node = node.nextSibling)
- if (node.nodeName == 'input-method')
- {
- var lang = null, name = null, extra_id = null, file = null;
-
- for (var n = node.firstChild; n; n = n.nextSibling)
- {
- if (n.nodeName == 'language')
- lang = n.firstChild.nodeValue;
- else if (n.nodeName == 'name')
- name = n.firstChild.nodeValue;
- else if (n.nodeName == 'extra-id')
- extra_id = n.firstChild.nodeValue;
- else if (n.nodeName == 'filename')
- file = n.firstChild.nodeValue;
- }
- if (name && name != 'nil')
- {
- if (! MIM.imlist[lang])
- MIM.imlist[lang] = {};
- MIM.imlist[lang][name] = new MIM.IM (lang, name, extra_id, file);
- }
- else if (extra_id && extra_id != 'nil')
- {
- if (! MIM.imextra[lang])
- MIM.imextra[lang] = {};
- MIM.imextra[lang][extra_id] = new MIM.IM (lang, name, extra_id, file);
- }
- }
- if (MIM.imextra.t && MIM.imextra.t.global)
- MIM.im_global = MIM.imextra.t.global;
- else
- {
- MIM.im_global = new MIM.IM ('t', 'nil', 'global', null);
- MIM.im_global.load_status = MIM.LoadStatus.Error;
- }
- node = undefined;
-}) ();
-
-(function () {
- var keys = new Array ();
- keys[0x09] = 'tab';
- keys[0x08] = 'backspace';
- keys[0x0D] = 'return';
- keys[0x1B] = 'escape';
- keys[0x20] = 'space';
- keys[0x21] = 'pageup';
- keys[0x22] = 'pagedown';
- keys[0x23] = 'end';
- keys[0x24] = 'home';
- keys[0x25] = 'left';
- keys[0x26] = 'up';
- keys[0x27] = 'right';
- keys[0x28] = 'down';
- keys[0x2D] = 'insert';
- keys[0x2E] = 'delete';
- for (var i = 1; i <= 12; i++)
- keys[111 + i] = "f" + i;
- keys[0x90] = "numlock";
- keys[0xF0] = "capslock";
-
- MIM.decode_key_event = function (event)
- {
- var key = ((event.type == 'keydown' || event.keyCode) ? event.keyCode
- : event.charCode ? event.charCode
- : false);
- if (! key)
- return false;
- if (event.type == 'keydown')
- {
- key = keys[key];
- if (! key)
- return false;
- if (event.shiftKey) key = "S-" + key ;
- }
- else
- key = String.fromCharCode (key);
- if (event.altKey) key = "A-" + key ;
- if (event.ctrlKey) key = "C-" + key ;
- return new MIM.Key (key);
- }
-}) ();
-
-MIM.add_event_listener
- = (window.addEventListener
- ? function (target, type, listener) {
- target.addEventListener (type, listener, false);
- }
- : window.attachEvent
- ? function (target, type, listener) {
- target.attachEvent ('on' + type,
- function() {
- listener.call (target, window.event);
- });
- }
- : function (target, type, listener) {
- target['on' + type]
- = function (e) { listener.call (target, e || window.event); };
- });
-
-MIM.debug_print = function (event, ic)
-{
- if (! MIM.debug)
- return;
- if (! MIM.debug_nodes)
- {
- MIM.debug_nodes = new Array ();
- MIM.debug_nodes['keydown'] = document.getElementById ('keydown');
- MIM.debug_nodes['keypress'] = document.getElementById ('keypress');
- MIM.debug_nodes['status0'] = document.getElementById ('status0');
- MIM.debug_nodes['status1'] = document.getElementById ('status1');
- MIM.debug_nodes['keymap0'] = document.getElementById ('keymap0');
- MIM.debug_nodes['keymap1'] = document.getElementById ('keymap1');
- MIM.debug_nodes['preedit0'] = document.getElementById ('preedit0');
- MIM.debug_nodes['preedit1'] = document.getElementById ('preedit1');
- }
- var target = event.target;
- var code = event.keyCode;
- var ch = event.type == 'keydown' ? 0 : event.charCode;
- var key = MIM.decode_key_event (event);
- var index;
-
- MIM.debug_nodes[event.type].innerHTML = "" + code + "/" + ch + " : " + key;
- index = (event.type == 'keydown' ? '0' : '1');
- if (ic)
- MIM.debug_nodes['status' + index].innerHTML = ic.im.load_status;
- else
- MIM.debug_nodes['status' + index].innerHTML = 'no IM';
- MIM.debug_nodes['keymap' + index].innerHTML = ic.state.name;
- MIM.debug_nodes['preedit' + index].innerHTML = ic.preedit;
-};
-
-MIM.get_range = function (target, range)
-{
- if (target.selectionStart != null) // for Mozilla
- {
- range[0] = target.selectionStart;
- range[1] = target.selectionEnd;
- }
- else // for IE
- {
- var r = document.selection.createRange ();
- var rr = r.duplicate ();
-
- rr.moveToElementText (target);
- rr.setEndPoint ('EndToEnd', range);
- range[0] = rr.text.length - r.text.length;
- range[1] = rr.text.length;
- }
-}
-
-MIM.set_caret = function (target, ic)
-{
- if (target.setSelectionRange) // Mozilla
- {
- var scrollTop = target.scrollTop;
- target.setSelectionRange (ic.spot, ic.spot + ic.preedit.length);
- target.scrollTop = scrollTop;
- }
- else // IE
- {
- var range = target.createTextRange ();
- range.moveStart ('character', ic.spot);
- range.moveEnd ('character', ic.spot + ic.preedit.length);
- range.select ();
- }
-};
-
-(function () {
- var range = new Array ();
-
- MIM.check_range = function (target, ic)
- {
- MIM.get_range (target, range);
- if (range[0] != ic.spot || range[1] - range[0] != ic.preedit.length
- || target.value.substring (range[0], range[1]) != ic.preedit)
- {
- Xex.Log ('reset:' + ic.spot + '-' + (ic.spot + ic.preedit.length)
- + '/' + range[0] + '-' + range[1]);
- ic.reset ();
- }
- target.value = (target.value.substring (0, range[0])
- + target.value.substring (range[1]));
- ic.spot = range[0];
- }
-}) ();
-
-MIM.update = function (target, ic)
-{
- var text = target.value;
- target.value = (text.substring (0, ic.spot)
- + ic.produced
- + ic.preedit
- + text.substring (ic.spot));
- ic.spot += ic.produced.length;
- MIM.set_caret (target, ic);
-};
-
-MIM.reset_ic = function (event)
-{
- if (event.target.mim_ic)
- {
- var ic = event.target.mim_ic;
- var pos = ic.spot + ic.preedit.length;
- ic.reset ();
- if (pos > ic.spot)
- event.target.setSelectionRange (pos, pos);
- }
-};
-
-MIM.keydown = function (event)
-{
- var target = event.target;
- if (! (target.type == "text" || target.type == "textarea"))
- return;
-
- var ic = target.mim_ic;
- if (! ic || ic.im != MIM.current)
- {
- Xex.Log ('creating IC');
- ic = new MIM.IC (MIM.current, target);
- target.mim_ic = ic;
- MIM.add_event_listener (target, 'blur', MIM.reset_ic);
- }
- if (ic.im.load_status != MIM.LoadStatus.Loaded)
- return;
- MIM.check_range (target, ic);
- MIM.debug_print (event, ic);
- ic.key = MIM.decode_key_event (event);
-};
-
-MIM.keypress = function (event)
-{
- if (! (event.target.type == "text" || event.target.type == "textarea"))
- return;
-
- var ic = event.target.mim_ic;
- var i;
-
- try {
- if (ic.im.load_status != MIM.LoadStatus.Loaded)
- return;
- if (! ic.key)
- ic.key = MIM.decode_key_event (event);
- if (! ic.key)
- {
- ic.reset ();
- return;
- }
-
- Xex.Log ("filtering " + ic.key);
- var result = ic.Filter (ic.key);
- MIM.update (event.target, ic);
- if (! ic.key_unhandled)
- event.preventDefault ();
- } finally {
- MIM.debug_print (event, ic);
- }
- return;
-};
-
-MIM.select_im = function (event)
-{
- var target = event.target.parentNode;
- while (target.tagName != "SELECT")
- target = target.parentNode;
- var idx = 0;
- var im = false;
- for (var lang in MIM.imlist)
- for (var name in MIM.imlist[lang])
- if (idx++ == target.selectedIndex)
- {
- im = MIM.imlist[lang][name];
- break;
- }
- document.getElementsByTagName ('body')[0].removeChild (target);
- target.target.focus ();
- if (im && im != MIM.current)
- {
- MIM.current = im;
- Xex.Log ('select IM: ' + im.name);
- }
-};
-
-MIM.destroy_menu = function (event)
-{
- if (event.target.tagName == "SELECT")
- document.getElementsByTagName ('body')[0].removeChild (event.target);
-};
-
-MIM.select_menu = function (event)
-{
- var target = event.target;
-
- if (! ((target.type == "text" || target.type == "textarea")
- && event.which == 1 && event.ctrlKey))
- return;
-
- var sel = document.createElement ('select');
- sel.onclick = MIM.select_im;
- sel.onmouseout = MIM.destroy_menu;
- sel.style.position='absolute';
- sel.style.left = (event.clientX - 10) + "px";
- sel.style.top = (event.clientY - 10) + "px";
- sel.target = target;
- var idx = 0;
- for (var lang in MIM.imlist)
- for (var name in MIM.imlist[lang])
- {
- var option = document.createElement ('option');
- var imname = lang + "-" + name;
- option.appendChild (document.createTextNode (imname));
- option.value = imname;
- sel.appendChild (option);
- if (MIM.imlist[lang][name] == MIM.current)
- sel.selectedIndex = idx;
- idx++;
- }
- sel.size = idx;
- document.getElementsByTagName ('body')[0].appendChild (sel);
-};
-
-MIM.test = function ()
-{
- var im = MIM.imlist['t']['latn-post'];
- var ic = new MIM.IC (im, null);
-
- ic.Filter (new MIM.Key ('a'));
- ic.Filter (new MIM.Key ("'"));
-
- if (true)
- document.getElementById ('text').value = ic.produced + ic.preedit;
- else {
- try {
- document.getElementById ('text').value
- = Xex.Term.Parse (domain, body).Eval (domain).toString ();
- } catch (e) {
- if (e instanceof Xex.ErrTerm)
- alert (e);
- throw e;
- }
- }
-}
-
-
-MIM.init = function ()
-{
- MIM.add_event_listener (window, 'keydown', MIM.keydown);
- MIM.add_event_listener (window, 'keypress', MIM.keypress);
- MIM.add_event_listener (window, 'mousedown', MIM.select_menu);
- if (window.location == 'http://localhost/mim/index.html')
- MIM.server = 'http://localhost/mim';
- MIM.current = MIM.imlist['vi']['telex'];
-};
-
-MIM.init_debug = function ()
-{
- MIM.debug = true;
- Xex.LogNode = document.getElementById ('log');
- MIM.init ();
-};
projects / m17n / m17n-lib-js.git / blobdiff