public delegate bool Callback (Context ic, MPlist args);
// Class members
- public static Callback PreeditStart, PreeditDone, PreeditDraw;
- public static Callback StatusStart, StatusDone, StatusDraw;
- public static Callback CandidateStart, CandidateDone, CandidateDraw;
- public static Callback SetSpot;
- public static Callback Toggle;
- public static Callback Reset;
+ public static event Callback PreeditChanged;
+ public static event Callback StatusChanged;
+ public static event Callback CandidateChanged;
public static Callback GetSurroundingText;
public static Callback DeleteSurroundingText;
- internal static Xex.Domain im_domain = new Xex.Domain (null);
+ internal static Xex.Domain im_domain
+ = new Xex.Domain ("input-method", null);
private static MSymbol Minput_method = "input-method";
private static MSymbol Mdescription = "description";
private static MSymbol Mvariable = "variable";
private static MSymbol Mmap_list = "map-list";
private static MSymbol Mstate = "state";
internal static MSymbol Mcandidates = "candidates";
- private static MSymbol Minsert = "insert";
- internal static MSymbol Mselect = "select";
- private static MSymbol Mdelete = "delete";
- private static MSymbol Mmove = "move";
- private static MSymbol Mmark = "mark";
- private static MSymbol Mmarker = "marker";
- private static MSymbol Mset = "set";
- private static MSymbol Madd = "add";
- private static MSymbol Msub = "sub";
- private static MSymbol Mmul = "mul";
- private static MSymbol Mdiv = "div";
- private static MSymbol Mif = "if";
- private static MSymbol Mcond = "cond";
- private static MSymbol Mchar_at = "char-at";
- private static MSymbol Msurrounding_flag = "surrounding-text-flag";
- private static MSymbol Mpushback = "pushback";
- private static MSymbol Mkeyseq = "keyseq";
-
- private static MSymbol Mget_surrounding_text = "get-surrounding-text";
- private static MSymbol Mdel_surrounding_text = "del-surrounding-text";
-
private static MSymbol Mat_minus_zero = "@-0";
private static Xex.Symbol Qmap = "map";
private static Xex.Symbol Qinsert = "insert";
private static Xex.Symbol Qinsert_candidates = "insert-candidates";
private static Xex.Symbol Qchar_at = "char-at";
+ private static Xex.Symbol Qselect = "select";
+ private static Xex.Symbol Qdelete = "delete";
+ private static Xex.Symbol Qshift = "shift";
+ private static Xex.Symbol Qmove = "move";
+ private static Xex.Symbol Qmark = "mark";
+ private static Xex.Symbol Qset = "set";
+ private static Xex.Symbol Qadd = "add";
+ private static Xex.Symbol Qsub = "sub";
+ private static Xex.Symbol Qmul = "mul";
+ private static Xex.Symbol Qdiv = "div";
+ private static Xex.Symbol Qcond = "cond";
private static Xex.Symbol Qsname = "sname";
private static Xex.Symbol Qmname = "mname";
private static Xex.Symbol Qstate_hook = "state-hook";
private static Xex.Symbol Qbranch = "branch";
private static Xex.Symbol Qstate = "state";
private static Xex.Symbol Qtitle = "title";
-
+ private static Xex.Symbol Qeq = "=";
+ private static Xex.Symbol Qeqeq = "==";
+ private static Xex.Symbol Qcandidates_group_size = "candidates-group-size";
private static Xex.Term Tnil = new Xex.Term ((Xex.Symbol) "nil");
private static Xex.Term Tcatch_tag = new Xex.Term ((Xex.Symbol) "@mimtag");
internal static MInputMethod im_global = null;
[FlagsAttribute]
- private enum LoadStatus
+ protected enum LoadStatus
{
None = 0x00,
Header = 0x01,
{
None = 0x00,
StateTitle = 0x01,
- Preedit = 0x02,
+ PreeditText = 0x02,
CursorPos = 0x04,
CandidateList = 0x08,
CandidateIndex = 0x10,
CandidateShow = 0x20,
+ Preedit = PreeditText | CursorPos,
+ Candidate = CandidateList | CandidateIndex | CandidateShow,
}
private static ChangedStatus CandidateAll = (ChangedStatus.CandidateList
public override string ToString ()
{
- MText mt = new MText (ToChar ());
+ int c = ToChar ();
+ MText mt = null;
+ if (c < 0x20)
+ foreach (KeyValuePair<string, uint> kv in keysyms)
+ if ((uint) c == kv.Value)
+ {
+ mt = kv.Key;
+ break;
+ }
+ if (mt == null)
+ mt = new MText (c);
+
KeyModifier m = ((KeyModifier) key) & KeyModifier.All;
if (m != KeyModifier.None)
{
MText mt;
foreach (Key key in keyseq)
- if (key.HasModifier)
+ if (key.HasModifier || key.ToChar () < 0x20)
{
mt = "(";
foreach (Key k in keyseq)
mt = "\"";
foreach (Key k in keyseq)
{
- if (mt.Length > 1)
- mt.Cat (' ');
- mt.Cat (k.ToString ());
- }
+ int c = k.ToChar ();
+
+ if (c == '\\' || c == '"')
+ mt.Cat ('\\');
+ mt.Cat (c);
+ }
return (string) mt.Cat ("\"");
}
}
}
public abstract int Position (Context ic);
+
public virtual void Mark (Context ic)
{
throw new Exception ("Can't set predefined marker: " + name);
{
return ic.preedit[Position (ic)];
}
- public override Xex.TermValue Clone () { return this; }
+
+ public override string ToString ()
+ {
+ return "<marker>" + name.Name + "</marker>";
+ }
public static Xex.TermValue parser (Xex.Domain domain, XmlNode node)
{
public override int Position (Context ic)
{
- MPlist p = ic.markers.Find (name);
- return (p != null ? p.Integer : 0);
-
+ MPlist p = ic.marker_positions.Find (name);
+ return (p == null ? 0 : p.Integer);
}
public override void Mark (Context ic)
{
- ic.markers.Put (name, ic.cursor_pos);
+ ic.marker_positions.Put (name, ic.cursor_pos);
}
}
public class Predefined : Marker
{
- public Predefined (MSymbol name) : base (name) { }
+ char tag;
+
+ public Predefined (MSymbol name) : base (name)
+ {
+ tag = ((string) name)[1];
+ }
public override int Position (Context ic)
{
- switch (name.Name[1]) {
+ switch (tag) {
case '<': return 0;
case '>': return ic.preedit.Length;
case '-': return ic.cursor_pos - 1;
}
return ic.preedit.Length;
default:
- return name.Name[1] - '0';
+ return tag - '0';
}
}
}
public PredefinedAbsolute (MSymbol name) : base (name)
{
- if (! int.TryParse (name.Name.Substring (1), out pos))
+ if (! int.TryParse (((string) name).Substring (1), out pos))
throw new Exception ("Invalid marker name: " + name);
}
public PredefinedSurround (MSymbol name) : base (name)
{
- if (! int.TryParse (name.Name.Substring (2), out distance))
+ if (! int.TryParse (((string) name).Substring (2), out distance))
throw new Exception ("Invalid marker name: " + name);
if (distance > 0)
distance--;
static Marker ()
{
- predefined_markers = new Dictionary<MSymbol,Predefined> ();
+ predefined_markers = new Dictionary<MSymbol, Predefined> ();
MSymbol[] symlist = new MSymbol[] {"@<", "@>", "@-", "@+", "@[", "@]" };
foreach (MSymbol s in symlist)
predefined_markers[s] = new Predefined (s);
public static Marker Get (MSymbol name)
{
- if (name.Name[0] == '@')
+ string str = name.Name;
+ if (str[0] == '@')
{
Predefined pred;
if (predefined_markers.TryGetValue (name, out pred))
return pred;
- if (name.Name.Length == 1)
+ if (str.Length == 1)
throw new Exception ("Invalid marker name: " + name);
- if (Char.IsDigit (name.Name[1]))
+ if (Char.IsDigit (str[1]))
return new PredefinedAbsolute (name);
- if (name.Name.Length == 2 || name == Mat_minus_zero
- || ! (name.Name[1] == '-' || name.Name[1] == '+'))
+ if (str.Length == 2 || name == Mat_minus_zero
+ || ! (str[1] == '-' || str[1] == '+'))
throw new Exception ("Invalid marker name: " + name);
return new PredefinedSurround (name);
}
group = new object[column];
}
- public Candidates (List<Xex.Term> list, int column)
+ public Candidates (Xex.Term[] candidates, int column)
{
- int nblocks = list.Count;
+ int nblocks = candidates.Length;
blocks = new Block[nblocks];
for (int i = 0, start = 0; i < nblocks; i++)
- start += (blocks[i] = new Block (index, list[i])).Count;
+ start += (blocks[i] = new Block (index, candidates[i])).Count;
if (column > 0)
group = new object[column];
}
return selector;
}
- public override Xex.TermValue Clone () { return this; }
-
public void Select (Candidates candidates)
{
switch (tag)
internal class Map
{
public MSymbol name;
- public List<Entry> entries;
+ public List<Entry> entries = new List<Entry> ();
public Map (MSymbol name) { this.name = name; }
}
}
- public override string ToString () { return (string) name; }
+ public override string ToString ()
+ {
+ string str = "(" + name;
+ foreach (Entry e in entries)
+ str += " " + e.keyseq.ToString ();
+ return str + ")";
+ }
}
internal class Keymap
if (branch_actions != null)
foreach (Xex.Term term in branch_actions)
mt.Cat (' ').Cat (term.ToString ());
- mt.Cat (')');
+ mt.Cat (')');
}
if (submaps != null)
foreach (KeyValuePair<Key, Keymap> kv in submaps)
KeySeq keyseq = new KeySeq ();
describe (mt, keyseq);
- mt.Cat (')');
return (string) mt;
}
}
public Xex.Symbol name;
public MText title;
public Xex.Term[] enter_actions, fallback_actions;
- public Keymap keymap;
+ public Keymap keymap = new Keymap ();
public State (Xex.Symbol name, MText title)
{
XmlAttribute attr = node.Attributes[Qtitle];
if (attr != null)
title = (MText) attr.Value;
+ else
+ title = im.title;
keymap = new Keymap ();
for (node = node.FirstChild; node != null; node = node.NextSibling)
{
plist = plist.next;
if (plist.IsMText)
{
- this.title = plist.Text;
+ title = plist.Text;
plist = plist.next;
}
+ else
+ title = im.title;
keymap = new Keymap ();
for (; ! plist.IsEmpty; plist = plist.next)
{
throw new Exception ("Invalid branch: " + p);
MSymbol mapname = p.Symbol;
if (mapname == MSymbol.t)
- enter_actions = im.parse_actions (p.next);
+ enter_actions = im.parse_actions (p.next, false);
else if (mapname == MSymbol.nil)
- fallback_actions = im.parse_actions (p.next);
+ fallback_actions = im.parse_actions (p.next, false);
else
{
Map map;
if (im.maps.TryGetValue (mapname, out map))
- keymap.AddMap (map, im.parse_actions (p.next));
+ keymap.AddMap (map, im.parse_actions (p.next, false));
else
throw new Exception ("Unknown map: " + mapname);
}
if (title != null)
mt.Cat (" \"" + title + "\"");
- mt += keymap.ToString ();
+ mt.Cat (keymap.ToString ());
return (string) mt + ")";
}
}
// Instance members
- internal Xex.Domain domain = new Xex.Domain (im_domain, null);
+ internal Xex.Domain domain;
- private LoadStatus load_status = LoadStatus.None;
- private MDatabase.Tag tag;
+ protected LoadStatus load_status = LoadStatus.None;
+ protected MDatabase.Tag tag;
private MDatabase mdb;
private MText description;
im_domain.DefTerm ("selector", Selector.parser);
im_domain.DefSubr (Finsert, "insert", false, 1, 1);
- im_domain.DefSubr (Finsert_candidates, "candidates", 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", false, 0, 0);
private MInputMethod (MDatabase.Tag tag)
{
this.tag = tag;
+ domain = new Xex.Domain (tag[1].Name, im_domain, null);
}
// Instance Properties
return (im_table.TryGetValue (tag, out im) ? im : null);
}
- public bool Open ()
+ private bool Open ()
{
return ((load_status == LoadStatus.Full) || load_body ());
}
private void add_default_state ()
{
Xex.Symbol Qinit = "init";
- State state = new State (Qinit, null);
+ State state = new State (Qinit, title);
foreach (KeyValuePair<MSymbol, Map>kv in maps)
state.keymap.AddMap (kv.Value, null);
states[Qinit] = initial_state = state;
add_default_state ();
}
- private static void transform (MPlist plist)
- {
- for (; ! plist.IsEmpty; plist = plist.next)
- {
- if (plist.IsMText)
- {
- MPlist p = new MPlist ();
- p.Add (MSymbol.symbol, Minsert);
- p.Add (MSymbol.mtext, plist.Text);
- plist.Set (MSymbol.plist, p);
- }
- else if (plist.IsInteger)
- {
- MPlist p = new MPlist ();
- p.Add (MSymbol.symbol, Minsert);
- p.Add (MSymbol.integer, plist.Integer);
- plist.Set (MSymbol.plist, p);
- }
- else if (plist.IsPlist)
- {
- MPlist pl = plist.Plist;
-
- if (pl.IsSymbol)
- {
- if (pl.Symbol == Madd)
- pl.Set (MSymbol.symbol, (MSymbol) "+=");
- else if (pl.Symbol == Msub)
- pl.Set (MSymbol.symbol, (MSymbol) "-=");
- else if (pl.Symbol == Mmul)
- pl.Set (MSymbol.symbol, (MSymbol) "*=");
- else if (pl.Symbol == Mdiv)
- pl.Set (MSymbol.symbol, (MSymbol) "/=");
- else if (pl.Symbol == Minsert)
- {
- // (insert (CANDIDATES ...))
- // => (candidates CANDIDATES ...)
- if (pl.next.IsPlist)
- {
- pl.Set (MSymbol.symbol, Mcandidates);
- pl = pl.next;
- MPlist p = pl.Plist;
- pl.Set (p.key, p.val);
- for (p = p.next; ! p.IsEmpty; p = p.next);
- pl.Add (p.key, p.val);
- }
- }
- else if (pl.Symbol == Mif)
- {
- pl = pl.next;
- if (! pl.IsEmpty)
- transform (pl.next);
- }
- else if (pl.Symbol == Mcond)
- {
- for (pl = pl.next; ! pl.IsEmpty; pl = pl.next)
- if (pl.IsPlist)
- {
- MPlist p = pl.Plist;
-
- if (p.IsPlist)
- transform (p);
- else
- transform (p.next);
- }
- }
- else if (pl.Symbol == Mdelete
- || pl.Symbol == Mmove
- || pl.Symbol == Mmark)
- {
- pl = pl.next;
- if (pl.IsSymbol)
- {
- MSymbol sym = pl.Symbol;
- MPlist p = new MPlist ();
- p.Add (MSymbol.symbol, Mmarker);
- p.Add (MSymbol.symbol, sym);
- pl.Set (MSymbol.plist, p);
- }
- }
- else if (pl.Symbol == Mpushback)
- {
- pl = pl.next;
- if (pl.IsPlist)
- pl.Plist.Push (MSymbol.symbol, Mkeyseq);
- }
- }
- else if (pl.IsMText)
- {
- // (CANDIDATES ...) => (candidates CANDIDATES ...)
- pl.Push (MSymbol.symbol, Mcandidates);
- }
- }
- else if (plist.IsSymbol)
- {
- MSymbol sym = plist.Symbol;
-
- if (sym.Name.Length >= 3
- && sym.Name[0] == '@'
- && (sym.Name[1] == '-' || sym.Name[1] == '+'))
- {
- int pos = int.Parse (sym.Name.Substring (1));
- MPlist p = new MPlist ();
-
- if (pos == 0)
- {
- p.Add (MSymbol.symbol, Msurrounding_flag);
- }
- else
- {
- if (sym.Name[1] == '+')
- pos--;
- p.Add (MSymbol.symbol, Mchar_at);
- p.Add (MSymbol.integer, pos);
- }
- plist.Set (MSymbol.plist, p);
- }
- }
- }
- }
-
private static MText parse_description (MPlist plist)
{
if (plist.IsMText)
}
}
if (vari == null)
- domain.Defvar (new Xex.Variable.Int (name, desc, val, range));
+ domain.Defvar (new Xex.Variable.Int (domain, name, desc, val, range));
else
{
Xex.Term term = new Xex.Term (val);
}
}
if (vari == null)
- domain.Defvar (new Xex.Variable.Str (name, desc, (string) val, range));
+ domain.Defvar (new Xex.Variable.Str (domain, name, desc, (string) val, range));
else
{
Xex.Term term = new Xex.Term ((string) val);
}
}
if (vari == null)
- domain.Defvar (new Xex.Variable.Sym (name, desc, sym, range));
+ domain.Defvar (new Xex.Variable.Sym (domain, name, desc, sym, range));
else
{
Xex.Term term = new Xex.Term (sym);
{
State state = new State (this, plist.Plist);
states[state.name] = state;
+ if (initial_state == null)
+ initial_state = state;
}
}
{
State state = new State (this, node);
states[state.name] = state;
+ if (initial_state == null)
+ initial_state = state;
}
}
if (! plist.IsPlist)
throw new Exception ("Invalid cond args: " + plist);
MPlist p = plist.Plist;
- List<Xex.Term> arg = new List<Xex.Term> (parse_actions (p));
+ List<Xex.Term> arg = new List<Xex.Term> ();
+ arg.Add (parse_action (p, true));
+ for (p = p.next; ! p.IsEmpty; p = p.next)
+ arg.Add (parse_action (p, false));
args[i] = new Xex.Term (arg);
}
- return new Xex.Term (domain, (Xex.Symbol) Mcond.Name, args);
+ return new Xex.Term (domain, Qcond, args);
}
private Xex.Term parse_insert (MPlist plist)
else if (plist.IsPlist)
{
MPlist pl = plist.Plist;
+
args = new Xex.Term[pl.Count];
int i;
for (i = 0; ! pl.IsEmpty; i++, pl = pl.next)
args[0] = new Xex.Term (Selector.Get (plist.Symbol));
else
args[0] = new Xex.Term (domain, (Xex.Symbol) plist.Symbol.Name);
- return new Xex.Term (domain, (Xex.Symbol) Mselect.Name, args);
+ return new Xex.Term (domain, Qselect, args);
}
- private Xex.Term parse_funcall_with_marker (MPlist plist, MSymbol func)
+ private Xex.Term parse_funcall_with_marker (MPlist plist, Xex.Symbol func)
{
Xex.Term[] args = new Xex.Term[1];
- if (plist.IsInteger && func != Mmark)
+ if (plist.IsInteger && func != Qmark)
args[0] = new Xex.Term (plist.Integer);
else if (plist.IsSymbol)
args[0] = new Xex.Term (Marker.Get (plist.Symbol));
else
throw new Exception ("Invalid arg to " + func + ": " + plist);
- return new Xex.Term (domain, (Xex.Symbol) func.Name, args);
+ return new Xex.Term (domain, func, args);
}
private Xex.Term parse_char_at (MSymbol name)
return new Xex.Term (domain, Qchar_at, args);
}
- private Xex.Term parse_action (MPlist plist)
+ private Xex.Term parse_shift (MPlist plist)
+ {
+ Xex.Term[] args = new Xex.Term[1];
+ if (! plist.IsSymbol)
+ throw new Exception ("Invalid arg to shift: " + plist);
+ args[0] = new Xex.Term ((Xex.Symbol) plist.Symbol.Name);
+ return new Xex.Term (domain, Qshift, args);
+ }
+
+ private Xex.Term parse_action (MPlist plist, bool as_funarg)
{
if (plist.IsPlist)
{
MPlist p = plist.Plist;
if (p.IsMText || p.IsPlist)
- return parse_insert (p);
+ return parse_insert (plist);
if (! p.IsSymbol)
throw new Exception ("Invalid action: " + p);
- MSymbol name = p.Symbol;
+ MSymbol sym = p.Symbol;
+ Xex.Symbol name = sym.Name;
p = p.next;
- if (name == Mcond)
+ if (name == Qcond)
return parse_cond (p);
- if (name == Minsert)
+ if (name == Qinsert)
return parse_insert (p);
- if (name == Mselect)
+ if (name == Qselect)
return parse_select (p);
- if (name == Mdelete || name == Mmove || name == Mmark)
+ if (name == Qdelete || name == Qmove || name == Qmark)
return parse_funcall_with_marker (p, name);
- if (name.Name[0] == '@')
- return parse_char_at (name);
- if (name == Mset || name == Madd || name == Msub
- || name == Mmul || name == Mdiv)
+ if (name == Qshift)
+ return parse_shift (p);
+ if (((string) name)[0] == '@')
+ return parse_char_at (sym);
+ if (name == Qset || name == Qadd || name == Qsub
+ || name == Qmul || name == Qdiv)
{
if (! p.IsSymbol)
throw new Exception ("Invalid action: " + p);
Xex.Symbol varname = p.Symbol.Name;
- return new Xex.Term (domain, (Xex.Symbol) name.Name,
- varname, parse_actions (p.next));
+ Xex.Term[] args = new Xex.Term[1];
+ args[0] = parse_action (p.next, true);
+ return new Xex.Term (domain, name, varname, args);
}
else
- return new Xex.Term (domain, (Xex.Symbol) name.Name,
- parse_actions (p));
+ {
+ if (name == Qeq)
+ name = Qeqeq;
+ if (p.IsEmpty)
+ return new Xex.Term (domain, name, null);
+ else
+ return new Xex.Term (domain, name, parse_actions (p, true));
+ }
}
- else if (plist.IsMText || plist.IsInteger || plist.IsSymbol)
- return parse_insert (plist);
+ else if (plist.IsSymbol)
+ {
+ if (plist.Symbol.Name[0] == '@')
+ return parse_char_at (plist.Symbol);
+ return new Xex.Term (domain, (Xex.Symbol) plist.Symbol.Name);
+ }
+ else if (plist.IsMText)
+ return (as_funarg ? new Xex.Term ((string) plist.Text)
+ : parse_insert (plist));
+ else if (plist.IsInteger)
+ return (as_funarg ? new Xex.Term (plist.Integer)
+ : parse_insert (plist));
else
throw new Exception ("Invalid action: " + plist);
}
- private Xex.Term[] parse_actions (MPlist plist)
+ private Xex.Term[] parse_actions (MPlist plist, bool as_funarg)
{
Xex.Term[] terms = new Xex.Term[plist.Count];
for (int i = 0; ! plist.IsEmpty; i++, plist = plist.next)
- terms[i] = parse_action (plist);
+ terms[i] = parse_action (plist, as_funarg);
return terms;
}
if (! p.IsSymbol)
continue;
- transform (p.next);
domain.Defun ((Xex.Symbol) p.Symbol.Name, false, null,
- parse_actions (p.next), false);
+ parse_actions (p.next, false), false);
}
}
else
continue;
p = p.next;
- if (p.IsEmpty)
- continue;
- Xex.Term[] actions = parse_actions (p);
+ Xex.Term[] actions
+ = p.IsEmpty ? null : parse_actions (p, false);
map.entries.Add (new Map.Entry (domain, keys, actions));
}
}
private static Xex.Term Finsert (Xex.Domain domain, Xex.Variable vari,
Xex.Term[] args)
{
- ((Context) domain.context).insert (args[0]);
+ if (args[0].IsInt)
+ ((Context) domain.context).insert (args[0].Intval);
+ else
+ ((Context) domain.context).insert (args[0].Strval);
return args[0];
}
Xex.Variable vari,
Xex.Term[] args)
{
- ((Context) domain.context).insert_candidates (args[0]);
+ Context ic = (Context) domain.context;
+ Xex.Variable v = ic.domain.GetVar (Qcandidates_group_size, false);
+ int column = (v == null ? 0 : v.Value.Intval);
+
+ ic.insert_candidates (new Candidates (args, column));
return args[0];
}
Context ic = (Context) domain.context;
Marker m = (Marker) args[0].Objval;
- return new Xex.Term (ic.char_at (m.Position (ic)));
+ return new Xex.Term (m.CharAt (ic));
}
private static Xex.Term Fdelete (Xex.Domain domain, Xex.Variable vari,
- Xex.Term[] args)
+ Xex.Term[] args)
{
- ((Context) domain.context).delete ((int) args[0].Intval);
- return args[0];
+ Context ic = (Context) domain.context;
+ int pos;
+
+ if (args[0].IsInt)
+ pos = args[0].Intval;
+ else
+ {
+ Marker m = (Marker) args[0].Objval;
+ pos = m.Position (ic);
+ }
+ return new Xex.Term (ic.delete (pos));
}
private static Xex.Term Fselect (Xex.Domain domain, Xex.Variable vari,
Candidates can = ((Context) domain.context).candidates;
if (can != null)
- ((Selector) args[0].Objval).Select (can);
+ {
+ if (args[0].IsInt)
+ can.Select (args[0].Intval);
+ else
+ ((Selector) args[0].Objval).Select (can);
+ }
return args[0];
}
private static Xex.Term Fshow (Xex.Domain domain, Xex.Variable vari,
- Xex.Term[] args)
+ Xex.Term[] args)
{
((Context) domain.context).show ();
return Tnil;
}
private static Xex.Term Fhide (Xex.Domain domain, Xex.Variable vari,
- Xex.Term[] args)
+ Xex.Term[] args)
{
((Context) domain.context).hide ();
return Tnil;
}
private static Xex.Term Fmove (Xex.Domain domain, Xex.Variable vari,
- Xex.Term[] args)
+ Xex.Term[] args)
{
- if (args[0].IsInt)
- ((Context) domain.context).move (args[0].Intval);
- else
- {
- Marker m = (Marker) args[0].Objval;
- Context ic = (Context) domain.context;
- ((Context) domain.context).move (m.Position (ic));
- }
+ Context ic = (Context) domain.context;
+ int pos = (args[0].IsInt ? args[0].Intval
+ : ((Marker) args[0].Objval).Position (ic));
+ ic.move (pos);
return args[0];
}
Xex.Variable vari,
Xex.Term[] args)
{
- return new Xex.Term (((Context) domain.context).SurroundingFlag);
+ return new Xex.Term (GetSurroundingText == null ? 0 : 1);
}
public override string ToString ()
{
+ this.Open ();
string str = (String.Format ("({0} (title \"{1}\")", tag, title));
if (commands != null)
{
foreach (KeyValuePair<MSymbol, Map> kv in maps)
str += " " + kv.Value;
str += ") (states";
- foreach (Xex.Symbol name in states.Keys)
- str += " " + name;
+ foreach (KeyValuePair<Xex.Symbol, State> kv in states)
+ {
+ str += " (" + kv.Key + " " + kv.Value.keymap + ")";
+ }
return str + "))";
}
public class Context
{
- internal static Xex.Symbol Qcandidates_group_size
- = "candidates-group-size";
internal MInputMethod im;
- private Dictionary<MSymbol, Callback> callbacks
- = new Dictionary<MSymbol, Callback> ();
-
- private MText produced;
+ internal Xex.Domain domain;
private bool active;
+
private MText status;
- internal MText preedit;
+ private MText produced = new MText ();
+ internal MText preedit = new MText ();
internal int cursor_pos;
- internal MPlist markers;
+ internal MPlist marker_positions = new MPlist ();
+
internal Candidates candidates;
private int candidate_from, candidate_to;
private bool candidate_show;
+ public bool CandidateShow { get { return candidate_show; } }
- private List<State> state_list = new List<State> ();
- private Keymap keymap;
+ private State state, prev_state;
+ private MText state_preedit = new MText ();
+ private int state_key_head;
+ private object state_var_values, state_initial_var_values;
+ private int state_pos;
+ private Keymap keymap;
// Sequence of input keys.
internal KeySeq keys = new KeySeq ();
-
// Index into KEYS specifying the next key to handle.
internal int key_head;
-
- private int state_key_head;
- private object state_var_values;
- private int commit_key_head;
- private MText state_preedit;
- private int state_pos;
internal MText preceding_text = new MText ();
internal MText following_text = new MText ();
// 'key_unhandled' is true.
private Key unhandled_key;
- internal Xex.Domain domain;
-
internal ChangedStatus changed;
- static MPlist callback_arg = new MPlist ();
+ private void set_cursor (string prefix, int pos)
+ {
+ cursor_pos = pos;
+ }
+
+ internal void reset ()
+ {
+ status = im.initial_state.title;
+ produced.Del ();
+ preedit.Del ();
+
+ set_cursor ("reset", 0);
+ marker_positions.Clear ();
+ candidates = null;
+ candidate_show = false;
+
+ state = prev_state = null;
+ state_preedit.Del ();
+ state_var_values = state_initial_var_values;
+ state_pos = 0;
+ shift (im.initial_state);
+
+ preceding_text.Del ();
+ following_text.Del ();
+
+ changed = ChangedStatus.None;
+ }
static Xex.Term[] catch_args = new Xex.Term[2];
- private bool take_action (Xex.Term[] actions)
+ private bool take_actions (Xex.Term[] actions)
{
catch_args[0] = Tcatch_tag;
catch_args[1]= new Xex.Term (domain, Qprogn, actions);
return (! term.IsSymbol || term.Symval != Tcatch_tag.Symval);
}
-
- private bool call_callback (MSymbol name, MPlist arg)
- {
- Callback callback;
- if (! callbacks.TryGetValue (name, out callback))
- return false;
- return callback (this, arg);
- }
+ static MPlist callback_arg = new MPlist ();
private bool get_surrounding_text (int len)
{
if (len < 0 ? -len <= preceding_text.Length
: len <= following_text.Length)
return true;
+ if (GetSurroundingText == null)
+ return false;
callback_arg.Set (MSymbol.integer, len);
- if (! call_callback (Mget_surrounding_text, callback_arg)
+ if (! GetSurroundingText (this, callback_arg)
|| ! callback_arg.IsMText)
return false;
if (len < 0)
return (len <= following_text.Length);
}
- internal int SurroundingFlag
- {
- get { return (callbacks.ContainsKey (Mget_surrounding_text) ? 1 : 0); }
- }
-
internal int GetSurroundingChar (int pos)
{
if (! get_surrounding_text (pos < 0 ? pos : pos + 1))
: ((MText) inserted).Length);
int diff = ins - (to - from);
- for (MPlist plist = markers; ! plist.IsEmpty; plist = plist.next)
+ for (MPlist p = marker_positions; ! p.IsEmpty; p = p.next)
{
- int pos = plist.Integer;
+ int pos = p.Integer;
if (pos > from)
- {
- if (pos >= to)
- plist.val = pos + diff;
- else
- plist.val = from;
- }
+ p.Set (p.Key, pos >= to ? pos + diff : from);
}
if (cursor_pos >= to)
- cursor_pos += diff;
+ set_cursor ("adjust", cursor_pos + diff);
else if (cursor_pos > from)
- cursor_pos = from;
+ set_cursor ("adjust", from);
}
private void preedit_replace (int from, int to, int c)
adjust_markers (from, to, mt);
}
- internal void insert (Xex.Term arg)
+ internal void insert (int c)
{
- if (arg.IsInt)
- preedit_replace (cursor_pos, cursor_pos, arg.Intval);
- else
- preedit_replace (cursor_pos, cursor_pos, new MText (arg.Strval));
+ preedit_replace (cursor_pos, cursor_pos, c);
+ changed |= ChangedStatus.Preedit | ChangedStatus.CursorPos;
+ }
+
+ internal void insert (string str)
+ {
+ preedit_replace (cursor_pos, cursor_pos, (MText) str);
changed |= ChangedStatus.Preedit | ChangedStatus.CursorPos;
}
}
preedit.PushProp (candidate_from, candidate_to,
Mcandidates, this);
- cursor_pos = candidate_from;
+ set_cursor ("update-candidate", candidate_to);
changed |= (ChangedStatus.Preedit | ChangedStatus.CursorPos
| CandidateAll);
}
- internal void insert_candidates (Xex.Term arg)
+ internal void insert_candidates (Candidates candidates)
{
- int column = 0;
- Xex.Variable v = domain.GetVar (Qcandidates_group_size, false);
-
- if (v != null)
- column = v.Value.Intval;
- candidates = new Candidates (arg.Listval, column);
+ this.candidates = candidates;
candidate_from = candidate_to = cursor_pos;
update_candidate ();
}
}
}
- internal int marker (MSymbol sym)
+ internal int delete (int pos)
{
- int pos = cursor_pos;
+ int deleted = pos - cursor_pos;
- if (sym.Name.Length == 2 && sym.Name[0] == '@')
+ if (pos < cursor_pos)
{
- switch (sym.Name[0])
+ if (pos < 0)
{
- case '<': pos = 0; break;
- case '>': pos = preedit.Length; break;
- case '-': pos = cursor_pos - 1; break;
- case '+': pos = cursor_pos + 1; break;
- case '[':
- if (pos > 0)
+ if (DeleteSurroundingText != null)
{
- int to;
- preedit.FindProp (Mcandidates, pos - 1,
- out pos, out to);
+ callback_arg.Set (MSymbol.integer, pos);
+ if (DeleteSurroundingText (this, callback_arg))
+ {
+ if (callback_arg.IsInteger)
+ deleted = callback_arg.Integer - cursor_pos;
+ preceding_text.Del ();
+ }
+ else
+ deleted = - cursor_pos;
}
- else
- pos = 0;
- break;
- case ']':
- if (cursor_pos < preedit.Length - 1)
- {
- int from;
- preedit.FindProp (Mcandidates, pos,
- out from, out pos);
- }
- else
- pos = preedit.Length;
- break;
- default:
- if (sym.Name[0] >= '0' && sym.Name[0] <= '9')
- pos = sym.Name[0];
- break;
+ pos = 0;
}
- }
- else if (sym.Name.Length >= 3 && sym.Name[0] == '@')
- {
- pos = int.Parse (sym.Name.Substring (2));
+ if (pos < cursor_pos)
+ preedit_replace (pos, cursor_pos, null);
}
else
{
- object val = markers.Get (sym);
-
- if (val is int)
- pos = (int) val;
- }
- return pos;
- }
-
- internal int char_at (int pos)
- {
- int c;
-
- pos += cursor_pos;
- if (pos < 0)
- {
- if (preceding_text.Length < -pos)
+ if (pos > preedit.Length)
{
- MPlist plist = new MPlist ();
- plist.Push (MSymbol.integer, pos);
- if (GetSurroundingText != null
- && GetSurroundingText (this, plist)
- && plist.IsMText
- && preceding_text.Length < plist.Text.Length)
- preceding_text = plist.Text;
- }
- c = (-pos < preceding_text.Length
- ? preceding_text[preceding_text.Length + pos] : -1);
- }
- else if (pos >= 0 && pos < preedit.Length)
- c = preedit[pos];
- else
- {
- pos -= preedit.Length;
- if (pos >= following_text.Length)
- {
- MPlist plist = new MPlist ();
- plist.Push (MSymbol.integer, pos + 1);
- if (GetSurroundingText != null
- && GetSurroundingText (this, plist)
- && plist.IsMText
- && following_text.Length < plist.Text.Length)
- following_text = plist.Text;
+ if (DeleteSurroundingText != null)
+ {
+ callback_arg.Set (MSymbol.integer, pos - preedit.Length);
+ if (DeleteSurroundingText (this, callback_arg))
+ {
+ if (callback_arg.IsInteger)
+ deleted = callback_arg.Integer - cursor_pos;
+ preceding_text.Del ();
+ }
+ else
+ deleted = preedit.Length - cursor_pos;
+ }
+ pos = preedit.Length;
}
- c = (pos < following_text.Length ? following_text[pos] : -1);
+ if (pos > cursor_pos)
+ preedit_replace (cursor_pos, pos, null);
}
- return c;
- }
-
- internal void delete (int pos)
- {
- if (pos < cursor_pos)
- preedit_replace (pos, cursor_pos, null);
- else
- preedit_replace (cursor_pos, pos, null);
- changed |= ChangedStatus.Preedit | ChangedStatus.CursorPos;
+ if (deleted != 0)
+ changed |= ChangedStatus.Preedit | ChangedStatus.CursorPos;
+ return deleted;
}
internal void show ()
pos = preedit.Length;
if (pos != cursor_pos)
{
- cursor_pos = pos;
+ set_cursor ("move", pos);
changed |= ChangedStatus.Preedit;
}
}
internal void commit ()
{
produced.Cat (preedit);
- preedit.Del ();
+ preedit_replace (0, preedit.Length, null);
changed |= ChangedStatus.Preedit;
}
internal void shift (State state)
{
- bool changed;
-
if (state == null)
{
- if (state_list.Count > 1)
- state_list.RemoveAt (state_list.Count - 1);
- state = state_list[state_list.Count - 1];
- changed = true;
+ if (prev_state == null)
+ return;
+ state = prev_state;
}
- else
- {
- changed = state != state_list[state_list.Count - 1];
- if (changed)
- state_list.Add (state);
- }
- if (state_list.Count == 1)
+
+ if (state == im.initial_state)
{
commit ();
- reset ();
- }
- else
- {
- state_key_head = key_head;
- state_pos = cursor_pos;
- state_preedit = preedit.Dup ();
- state_var_values = domain.SaveValues ();
- if (changed)
+ keys.keyseq.RemoveRange (0, key_head);
+ key_head = 0;
+ if (state != this.state)
{
- status = state.title;
- if (status == null)
- status = im.title;
- this.changed |= ChangedStatus.StateTitle;
+ domain.RestoreValues (state_initial_var_values);
if (state.enter_actions != null)
- take_action (state.enter_actions);
+ take_actions (state.enter_actions);
}
+ prev_state = null;
}
- }
-
- internal void reset ()
- {
- preedit.Del ();
- state_preedit.Del ();
- produced.Del ();
- markers.Clear ();
- cursor_pos = 0;
- keys.keyseq.Clear ();
- key_head = commit_key_head = 0;
- state_list.Clear ();
- state_list.Add (im.initial_state);
- keymap = im.initial_state.keymap;
- key_head = state_key_head = 0;
- state_pos = 0;
+ else
+ {
+ if (state != this.state && state.enter_actions != null)
+ take_actions (state.enter_actions);
+ prev_state = this.state;
+ }
+ save_state ();
+ if (this.state == null || this.state.title != state.title)
+ this.changed |= ChangedStatus.StateTitle;
+ this.state = state;
+ keymap = state.keymap;
}
public Context (MInputMethod im)
{
+ if (im.load_status != LoadStatus.Full
+ && ! im.Open ())
+ throw new Exception ("Openging " + im.tag + " failed");
this.im = im;
- domain = new Xex.Domain (im.domain, this);
+ domain = new Xex.Domain ("context", im.domain, this);
+ state_initial_var_values = domain.SaveValues ();
reset ();
+ active = true;
+ if (PreeditChanged != null)
+ {
+ callback_arg.Set (MSymbol.mtext, preedit);
+ PreeditChanged (this, callback_arg);
+ }
+ if (StatusChanged != null)
+ {
+ callback_arg.Set (MSymbol.mtext, status);
+ StatusChanged (this, callback_arg);
+ }
}
public ChangedStatus Changed { get { return changed; } }
- public void AddCallback (MSymbol name, Callback callback)
- {
- callbacks[name] = callback;
- }
-
internal object GetCandidates (out int column)
{
column = 0;
return candidates.Current;
}
+ private void save_state ()
+ {
+ state_var_values = domain.SaveValues ();
+ state_preedit.Del ();
+ state_preedit.Ins (0, preedit);
+ state_key_head = key_head;
+ state_pos = cursor_pos;
+ }
+
private void restore_state ()
{
+ domain.RestoreValues (state_var_values);
+ preedit.Del ();
+ preedit.Ins (0, state_preedit);
+ set_cursor ("restore", state_pos);
}
private bool handle_key ()
{
- State state = state_list[state_list.Count - 1];
+ Console.Write ("\nHandle ({0}[{1}]) in {2}",
+ keys, key_head, state.name);
+
Keymap sub = keymap.Lookup (keys, ref key_head);
if (sub != keymap)
{
+ restore_state ();
keymap = sub;
if (keymap.map_actions != null)
{
- restore_state ();
- if (! take_action (keymap.map_actions))
+ if (! take_actions (keymap.map_actions))
return false;
}
else if (keymap.submaps != null)
{
if (keymap.branch_actions != null)
{
- if (! take_action (keymap.branch_actions))
+ if (! take_actions (keymap.branch_actions))
return false;
}
if (keymap != state.keymap)
}
else
{
+ State current_state = state;
+
if (keymap.branch_actions != null)
{
- if (! take_action (keymap.branch_actions))
+ if (! take_actions (keymap.branch_actions))
return false;
}
- if (state == state_list[state_list.Count - 1])
+ if (state == current_state)
{
if (state == im.initial_state
&& key_head < keys.keyseq.Count)
return key_unhandled;
}
- public bool Produced (out MText mt)
- {
- mt = produced;
- return (produced.Length > 0);
- }
+ public MText Preedit { get { return preedit; } }
+ public MText Produced { get { return produced; } }
// Return value:
// true: All keys are handled and there's no text to commit.
- // false: Some key is unhandled or there's a text to commit.
- // The caller should use methods UnhandledKey and Produced.
+ // false: Some key is left unhandled or there's a text to
+ // commit. The caller should refer to UnhandledKey and
+ // Produced.
public bool Filter (Key key)
{
+ if (! active)
+ {
+ key_unhandled = true;
+ unhandled_key = key;
+ return false;
+ }
if (key == Key.Reload)
return true;
changed = ChangedStatus.None;
key_unhandled = true;
break;
}
- if (++count == 100)
+ if (++count == 10)
break;
}
keys.keyseq.RemoveRange (0, key_head);
+ key_head = 0;
+
+ if ((changed & ChangedStatus.Preedit) != ChangedStatus.None
+ && PreeditChanged != null)
+ {
+ callback_arg.Set (MSymbol.mtext, preedit);
+ PreeditChanged (this, callback_arg);
+ }
+ if ((changed & ChangedStatus.StateTitle) != ChangedStatus.None
+ && StatusChanged != null)
+ {
+ callback_arg.Set (MSymbol.mtext, status);
+ StatusChanged (this, callback_arg);
+ }
+ if ((changed & ChangedStatus.Candidate) != ChangedStatus.None
+ && CandidateChanged != null)
+ {
+ CandidateChanged (this, callback_arg);
+ }
+
+ Console.Write ("\nPreedit(\"{0}\"/{1}), Produced({2})",
+ preedit, cursor_pos, produced);
+
return (! key_unhandled && produced.Length == 0);
}
}
projects / m17n / m17n-lib-cs.git / blobdiff