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;
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 Xex.Symbol Nprogn = "progn";
- private static Xex.Symbol Ninsert = "insert";
- private static Xex.Symbol Ninsert_candidates = "insert-candidates";
- private static Xex.Symbol Nchar_at = "char-at";
+ private static MSymbol Mat_minus_zero = "@-0";
+
+ private static Xex.Symbol Qmap = "map";
+ private static Xex.Symbol Qrule = "rule";
+ private static Xex.Symbol Qkeyseq = "keyseq";
+ private static Xex.Symbol Qprogn = "progn";
+ private static Xex.Symbol Qcatch = "catch";
+ 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 Qcatch_all_branch = "catch-all-branch";
+ 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
= new Dictionary<string, KeyModifier> ();
private static uint keysym_base = 0x200000;
private static uint char_mask = ~((uint) KeyModifier.All);
+ public static Key Reload;
static Key ()
{
keymodifiers["altgr"] = KeyModifier.AltGr;
keymodifiers["super"] = KeyModifier.Super;
keymodifiers["hyper"] = KeyModifier.Hyper;
+ Reload = new Key (keysym_base);
+ keysyms["-reload"] = keysym_base++;
}
private static uint decode_keysym (MSymbol keysym)
get { return ((key & (uint) KeyModifier.All) != 0); }
}
+ public static bool operator== (Key k1, Key k2)
+ {
+ return k1.key == k2.key;
+ }
+
+ public static bool operator!= (Key k1, Key k2)
+ {
+ return k1.key != k2.key;
+ }
+
+ public override bool Equals (object o) { return key == ((Key) o).key; }
+
+ public override int GetHashCode () { return (int) key; }
+
public bool Match (Key k)
{
if (k.key == key)
&& ((m1 & KeyModifier.High) == (m2 & KeyModifier.High)));
}
+ public int ToChar ()
+ {
+ return (int) (key & 0x1FFFFF);
+ }
+
public override string ToString ()
{
- string str = Char.ToString ((char) key);
+ 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)
{
if ((m & KeyModifier.Shift) != KeyModifier.None)
- str = "S-" + str;
+ mt.Ins (0, "S-");
if ((m & KeyModifier.Control) != KeyModifier.None)
- str = "C-" + str;
+ mt.Ins (0, "C-");
if ((m & KeyModifier.Alt) != KeyModifier.None)
- str = "A-" + str;
+ mt.Ins (0, "A-");
if ((m & KeyModifier.AltGr) != KeyModifier.None)
- str = "G-" + str;
+ mt.Ins (0, "G-");
if ((m & KeyModifier.Super) != KeyModifier.None)
- str = "s-" + str;
+ mt.Ins (0, "s-");
if ((m & KeyModifier.Hyper) != KeyModifier.None)
- str = "H-" + str;
+ mt.Ins (0, "H-");
}
- return str;
+ return (string) mt;
}
}
- public class KeySeq : Xex.TermValue
+ internal class KeySeq : Xex.TermValue
{
public List<Key> keyseq = new List<Key> ();
public override string ToString ()
{
- string str;
-
+ MText mt;
foreach (Key key in keyseq)
- if (key.HasModifier)
+ if (key.HasModifier || key.ToChar () < 0x20)
{
- str = "(keyseq";
+ mt = "(";
foreach (Key k in keyseq)
- str += " " + k.ToString ();
- return str + ")";
+ {
+ if (mt.Length > 1)
+ mt.Cat (' ');
+ mt.Cat (k.ToString ());
+ }
+ return (string) mt.Cat (")");
}
- str = "\"";
- foreach (Key key in keyseq)
- str += key.ToString ();
- return str + "\"";
+ mt = "\"";
+ foreach (Key k in keyseq)
+ {
+ int c = k.ToChar ();
+
+ if (c == '\\' || c == '"')
+ mt.Cat ('\\');
+ mt.Cat (c);
+ }
+ return (string) mt.Cat ("\"");
}
}
{
public MSymbol name;
public MText description;
- public List<KeySeq> keys;
+ internal List<KeySeq> keys;
public Command (MPlist p)
{
if (description == null)
description = "No description";
keys = new List<KeySeq> ();
- Console.WriteLine ("cmd:" + p);
for (p = p.next; ! p.IsEmpty; p = p.next)
{
if (p.IsMText)
{
private MSymbol name;
- public Marker (MSymbol name)
+ private Marker (MSymbol name)
{
this.name = name;
}
public abstract int Position (Context ic);
- public abstract void Mark (Context ic);
- public abstract int CharAt (Context ic);
+
+ public virtual void Mark (Context ic)
+ {
+ throw new Exception ("Can't set predefined marker: " + name);
+ }
+ public virtual int CharAt (Context ic)
+ {
+ return ic.preedit[Position (ic)];
+ }
+
+ public override string ToString () { return name.Name; }
public static Xex.TermValue parser (Xex.Domain domain, XmlNode node)
{
- MSymbol name = node.InnerText;
-
- return Get ((Context) domain.context, name);
+ return Get ((MSymbol) node.InnerText);
}
public class Named : Marker
public override int Position (Context ic)
{
- int pos;
- if (ic.markers.TryGetValue (name, out pos))
- return pos;
- return 0;
+ MPlist p = ic.marker_positions.Find (name);
+ return (p == null ? 0 : p.Integer);
}
public override void Mark (Context ic)
{
- ic.markers[name] = ic.cursor_pos;
- }
-
- public override Xex.TermValue Clone ()
- {
- return new Named (name, 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 override void Mark (Context ic)
- {
- throw new Exception ("Can't set predefined marker: " + name);
- }
+ }
+
+ public class PredefinedAbsolute : Marker
+ {
+ private int pos;
+
+ public PredefinedAbsolute (MSymbol name) : base (name)
+ {
+ if (! int.TryParse (((string) name).Substring (1), out pos))
+ throw new Exception ("Invalid marker name: " + name);
+ }
- public override Xex.TermValue Clone ()
+ public override int Position (Context ic)
{
- return new Predefined (name);
+ return (pos < ic.preedit.Length ? pos : ic.preedit.Length);
}
}
- public class PredefinedPlusMinus : Marker
+ public class PredefinedSurround : Marker
{
private int distance;
- public PredefinedPlusMinus (MSymbol name): base (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--;
{
return ic.cursor_pos + distance;
}
+
+ public override int CharAt (Context ic)
+ {
+ int pos = ic.cursor_pos + distance;
+ if (pos < 0)
+ return ic.GetSurroundingChar (pos);
+ else if (pos >= ic.preedit.Length)
+ return ic.GetSurroundingChar (pos - ic.preedit.Length);
+ return ic.preedit[pos];
+ }
}
static internal Dictionary<MSymbol,Predefined> predefined_markers;
static Marker ()
{
- predefined_markers = new Dictionary<MSymbol,Predefined> ();
- MSymbol[] symlist = new MSymbol[] {"@<", "@>", "@-", "@+", "@[", "@]",
- "@0", "@1", "@2", "@3", "@4",
- "@5", "@6", "@7", "@8", "@9" };
+ 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)
{
- Predefined pred;
-
- if (predefined_markers.TryGetValue (name, out pred))
- return pred;
- if (name.Name[0] == '@')
+ string str = name.Name;
+ if (str[0] == '@')
{
- int pos;
- if (name.Name.Length >= 3
- && (name.Name[1] == '-' || name.Name[1] == '+')
- && int.TryParse (name.Name.Substring (2), out pos)
- && (pos > 0))
- return (predefined_markers[name] = new Predefined (name));
- else
+ Predefined pred;
+ if (predefined_markers.TryGetValue (name, out pred))
+ return pred;
+ if (str.Length == 1)
throw new Exception ("Invalid marker name: " + name);
+ if (Char.IsDigit (str[1]))
+ return new PredefinedAbsolute (name);
+ if (str.Length == 2 || name == Mat_minus_zero
+ || ! (str[1] == '-' || str[1] == '+'))
+ throw new Exception ("Invalid marker name: " + name);
+ return new PredefinedSurround (name);
}
return new Named (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];
}
internal class Selector : Xex.TermValue
{
+ static new Dictionary<MSymbol, Selector> selectors;
+
+ static Selector ()
+ {
+ selectors = new Dictionary<MSymbol, Selector> ();
+ MSymbol[] symlist = new MSymbol[] { "@<", "@=", "@>", "@-", "@+",
+ "@[", "@]" };
+ foreach (MSymbol s in symlist)
+ selectors[s] = new Selector (s);
+ selectors["@first"] = new Selector ('<');
+ selectors["@current"] = new Selector ('=');
+ selectors["@last"] = new Selector ('>');
+ selectors["@previous"] = new Selector ('-');
+ selectors["@next"] = new Selector ('+');
+ selectors["@previous-candidate-change"] = new Selector ('[');
+ selectors["@next-candidate-change"] = new Selector (']');
+ }
+
+ private char tag;
+
+ private Selector (MSymbol sym) { tag = sym.Name[1]; }
+
+ private Selector (char tag) { this.tag = tag; }
+
public static Xex.TermValue parser (Xex.Domain domain, XmlNode node)
{
return Get ((MSymbol) node.InnerText);
public static Xex.TermValue Get (MSymbol name)
{
- Predefined pred;
-
- if (! predefined_selectors.TryGetValue (name, out pred))
+ Selector selector;
+ if (! selectors.TryGetValue (name, out selector))
throw new Exception ("Invalid selector name: " + name);
- return pred;
+ return selector;
}
- public override Xex.TermValue Clone () { return this; }
-
public void Select (Candidates candidates)
{
switch (tag)
default: break;
}
}
+ }
- static new Dictionary<MSymbol, Selector> selectors;
+ internal class Map
+ {
+ public MSymbol name;
+ public List<Entry> entries = new List<Entry> ();
- static Selector ()
+ public Map (MSymbol name) { this.name = name; }
+
+ public class Entry
+ {
+ public KeySeq keyseq;
+ public Xex.Term[] actions;
+
+ public Entry (Xex.Domain domain, KeySeq keyseq, Xex.Term[] actions)
{
- selectors = new Dictionary<MSymbol, Selector> ();
- MSymbol[] symlist = new MSymbol[] { "@<", "@=", "@>", "@-", "@+",
- "@[", "@]" };
- foreach (MSymbol s in symlist)
- selectors[s] = new Selector (s);
+ this.keyseq = keyseq;
+ this.actions = actions;
}
+ }
+
+ public override string ToString ()
+ {
+ string str = "(" + name;
+ foreach (Entry e in entries)
+ str += " " + e.keyseq.ToString ();
+ return str + ")";
+ }
}
- internal class Map
+ internal class Keymap
{
- public MSymbol name;
- public Dictionary<Key, Map> submaps;
- public Xex.Term actions;
+ public Dictionary<Key, Keymap> submaps;
+ public Xex.Term[] map_actions, branch_actions;
- public void Add (KeySeq keys, int index, Xex.Term actions)
- {
- Map sub = null;
+ public Keymap () { }
- if (submaps == null)
- submaps = new Dictionary<Key, Map> ();
+ public void Add (KeySeq keys, int index,
+ Xex.Term[] map_actions, Xex.Term[] branch_actions)
+ {
+ if (index == keys.keyseq.Count)
+ {
+ this.map_actions = map_actions;
+ this.branch_actions = branch_actions;
+ }
else
- submaps.TryGetValue (keys.keyseq[index], out sub);
- if (sub == null)
{
Key key = keys.keyseq[index];
- submaps[key] = sub = new Map ();
+ Keymap sub = null;
+
+ if (submaps == null)
+ submaps = new Dictionary<Key, Keymap> ();
+ else
+ submaps.TryGetValue (key, out sub);
+ if (sub == null)
+ submaps[key] = sub = new Keymap ();
+ sub.Add (keys, index + 1, map_actions, branch_actions);
}
- if (index + 1 < keys.keyseq.Count)
- sub.Add (keys, index + 1, actions);
- else
- this.actions = actions;
}
- public Xex.Term Lookup (KeySeq keys, ref int index)
+ public void AddMap (Map map, Xex.Term[] branch_actions)
+ {
+ foreach (Map.Entry entry in map.entries)
+ Add (entry.keyseq, 0, entry.actions, branch_actions);
+ }
+
+ public Keymap Lookup (KeySeq keys, ref int index)
{
- if (index < keys.keyseq.Count)
+ Keymap sub;
+
+ if (index < keys.keyseq.Count
+ && submaps != null
+ && submaps.TryGetValue (keys.keyseq[index], out sub))
{
- Map sub;
- if (submaps.TryGetValue (keys.keyseq[index], out sub))
- {
- index++;
- return sub.Lookup (keys, ref index);
- }
- return Tnil;
+ index++;
+ return sub.Lookup (keys, ref index);
}
- return actions;
+ return this;
}
private void describe (MText mt, KeySeq keyseq)
{
- if (keyseq.keyseq.Count > 0)
+ if (map_actions != null || branch_actions != null)
{
- mt.Cat (" (").Cat (keyseq.ToString ());
- mt.Cat (' ').Cat (actions.ToString ());
- mt.Cat (')');
+ if (mt.Length > 0)
+ mt.Cat (" ");
+ mt.Cat ('(').Cat (keyseq.ToString ());
+ if (map_actions != null)
+ foreach (Xex.Term term in map_actions)
+ mt.Cat (' ').Cat (term.ToString ());
+ if (branch_actions != null)
+ foreach (Xex.Term term in branch_actions)
+ mt.Cat (' ').Cat (term.ToString ());
+ mt.Cat (')');
}
if (submaps != null)
- foreach (KeyValuePair<Key, Map> kv in submaps)
+ foreach (KeyValuePair<Key, Keymap> kv in submaps)
{
keyseq.keyseq.Add (kv.Key);
kv.Value.describe (mt, keyseq);
public override string ToString ()
{
- MText mt = "(" + name.Name;
+ MText mt = "";
KeySeq keyseq = new KeySeq ();
describe (mt, keyseq);
- mt.Cat (')');
return (string) mt;
}
}
internal class State
{
- public MSymbol name;
+ public Xex.Symbol name;
public MText title;
- public MPlist branches = new MPlist ();
+ public Xex.Term[] enter_actions, fallback_actions;
+ public Keymap keymap = new Keymap ();
- public State (MSymbol name)
+ public State (Xex.Symbol name, MText title)
{
this.name = name;
+ this.title = title;
+ }
+
+ public State (MInputMethod im, XmlNode node)
+ {
+ this.name = node.Attributes[Qsname].Value;
+ 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)
+ {
+ if (node.Name == Qstate_hook)
+ enter_actions = Xex.ParseTerms (im.domain, node.FirstChild);
+ else if (node.Name == Qcatch_all_branch)
+ fallback_actions = Xex.ParseTerms (im.domain, node.FirstChild);
+ else if (node.Name == Qbranch)
+ {
+ MSymbol mapname = node.Attributes[Qmname].Value;
+ Map map;
+ if (im.maps.TryGetValue (mapname, out map))
+ keymap.AddMap (map, Xex.ParseTerms (im.domain,
+ node.FirstChild));
+ else
+ throw new Exception ("Unknown map: " + mapname);
+ }
+ }
+ }
+
+ public State (MInputMethod im, MPlist plist)
+ {
+ if (! plist.IsSymbol)
+ throw new Exception ("Invalid state: " + plist);
+ this.name = plist.Symbol.Name;
+ plist = plist.next;
+ if (plist.IsMText)
+ {
+ title = plist.Text;
+ plist = plist.next;
+ }
+ else
+ title = im.title;
+ keymap = new Keymap ();
+ for (; ! plist.IsEmpty; plist = plist.next)
+ {
+ if (! plist.IsPlist)
+ throw new Exception ("Invalid branch: " + plist);
+ MPlist p = plist.Plist;
+ if (! p.IsSymbol)
+ throw new Exception ("Invalid branch: " + p);
+ MSymbol mapname = p.Symbol;
+ if (mapname == MSymbol.t)
+ enter_actions = im.parse_actions (p.next, false);
+ else if (mapname == MSymbol.nil)
+ 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, false));
+ else
+ throw new Exception ("Unknown map: " + mapname);
+ }
+ }
}
public override string ToString ()
{
- MText mt = "(" + name.Name;
+ MText mt = "(" + name;
if (title != null)
mt.Cat (" \"" + title + "\"");
- for (MPlist p = branches; ! p.IsEmpty; p = p.next)
- mt.Cat (" (" + p.Key + " " + (Xex) p.Val + ")");
+ mt.Cat (keymap.ToString ());
return (string) mt + ")";
}
}
// Instance members
internal Xex.Domain domain = new Xex.Domain (im_domain, null);
- 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;
internal Xex.Symbol[] var_names;
internal Dictionary<MSymbol, Plugin> plugins;
internal Dictionary<MSymbol, Map> maps;
- internal MPlist states;
+ internal Dictionary<Xex.Symbol, State> states;
+ internal State initial_state;
static MInputMethod ()
{
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);
return (im_table.TryGetValue (tag, out im) ? im : null);
}
- public bool Open ()
+ private bool Open ()
{
return ((load_status == LoadStatus.Full) || load_body ());
}
return true;
}
+ private void add_default_state ()
+ {
+ Xex.Symbol Qinit = "init";
+ State state = new State (Qinit, title);
+ foreach (KeyValuePair<MSymbol, Map>kv in maps)
+ state.keymap.AddMap (kv.Value, null);
+ states[Qinit] = initial_state = state;
+ }
+
private void load (MPlist plist, bool full)
{
maps = new Dictionary<MSymbol, Map> ();
- states = new MPlist ();
+ states = new Dictionary<Xex.Symbol, State> ();
for (; ! plist.IsEmpty; plist = plist.next)
if (plist.IsPlist)
commands = new Command[0];
if (! full)
return;
- if (states.IsEmpty)
- {
- State state = new State ((MSymbol) "init");
- plist = new MPlist ();
- foreach (KeyValuePair<MSymbol, Map>kv in maps)
- state.branches.Add (kv.Key, null);
- states.Add (state.name, state);
- }
+ if (states.Count == 0)
+ add_default_state ();
}
private void load (XmlNode node, bool full)
bool skip_header = load_status == LoadStatus.Header;
maps = new Dictionary<MSymbol, Map> ();
- states = new MPlist ();
+ states = new Dictionary<Xex.Symbol, State> ();
if (node.NodeType == XmlNodeType.Document)
node = node.FirstChild;
commands = new Command[0];
if (! full)
return;
- if (states.IsEmpty)
- {
- State state = new State ((MSymbol) "init");
- foreach (KeyValuePair<MSymbol, Map>kv in maps)
- state.branches.Add (kv.Key, null);
- states.Add (state.name, 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);
- }
- }
- }
+ if (states.Count == 0)
+ add_default_state ();
}
private static MText parse_description (MPlist plist)
range = null;
else
{
- range = new int[pl.Count * 2];
- for (int i = 0; i < range.Length; i++)
+ int nrange = pl.Count;
+ range = new int[nrange * 2];
+ for (int i = 0; i < nrange; i++)
{
if (pl.IsPlist)
{
private void parse_maps (XmlNode node)
{
+ for (node = node.FirstChild; node != null; node = node.NextSibling)
+ if (node.Name == Qmap)
+ {
+ MSymbol name = node.Attributes[0].Value;
+ Map map = new Map (name);
+ maps[name] = map;
+ for (XmlNode nd = node.FirstChild; nd != null; nd = nd.NextSibling)
+ if (nd.Name == Qrule)
+ {
+ XmlNode n = nd.FirstChild;
+ if (n.Name != Qkeyseq)
+ continue;
+ KeySeq keyseq = (KeySeq) KeySeq.parser (domain, n);
+ Xex.Term[] actions = Xex.ParseTerms (domain, n.NextSibling);
+ map.entries.Add (new Map.Entry (domain, keyseq, actions));
+ }
+ }
+ }
+
+ private void parse_states (MPlist plist)
+ {
+ for (; ! plist.IsEmpty; plist = plist.next)
+ if (plist.IsPlist)
+ {
+ State state = new State (this, plist.Plist);
+ states[state.name] = state;
+ if (initial_state == null)
+ initial_state = state;
+ }
}
private void parse_states (XmlNode node)
{
+ for (node = node.FirstChild; node != null; node = node.NextSibling)
+ if (node.Name == Qstate)
+ {
+ State state = new State (this, node);
+ states[state.name] = state;
+ if (initial_state == null)
+ initial_state = state;
+ }
}
private void parse_include (MPlist plist)
{
if (target_name == MSymbol.nil)
{
- for (p = im.states; ! p.IsEmpty; p = p.next)
- states.Add (p.key, p.val);
+ foreach (KeyValuePair<Xex.Symbol, State> kv in im.states)
+ states[kv.Key] = kv.Value;
}
else
{
- object state = im.states.Get (target_name);
- if (state != null)
- states.Add (target_name, state);
+ Xex.Symbol state_name = target_name.Name;
+ State state;
+ if (im.states.TryGetValue (state_name, out state))
+ states[state_name] = 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> (parse_actions (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)
else
throw new Exception ("Invalid candidates: " + pl);
}
- return new Xex.Term (domain, Ninsert_candidates, args);
+ return new Xex.Term (domain, Qinsert_candidates, args);
}
else
throw new Exception ("Invalid arg to insert: " + plist);
args = new Xex.Term[1];
args[0] = arg;
- return new Xex.Term (domain, Ninsert, args);
+ return new Xex.Term (domain, Qinsert, args);
}
private Xex.Term parse_select (MPlist plist)
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)
{
Xex.Term[] args = new Xex.Term[1];
args[0] = new Xex.Term (Marker.Get (name));
- return new Xex.Term (domain, Nchar_at, args);
+ 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)
+ 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;
}
-
private void parse_macros (MPlist plist)
{
for (MPlist pl = plist; ! pl.IsEmpty; pl = pl.next)
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);
}
}
if (! pl.IsSymbol)
continue;
- Map map = new Map ();
- map.name = pl.Symbol;
- maps[map.name] = map;
+ Map map = new Map (pl.Symbol);
+ maps[pl.Symbol] = map;
for (pl = pl.next; ! pl.IsEmpty; pl = pl.next)
{
if (! pl.IsPlist)
else
continue;
p = p.next;
- if (p.IsEmpty)
- continue;
- map.Add (keys, 0,
- new Xex.Term (domain, Nprogn, parse_actions (p)));
- }
- }
- }
-
- private void parse_states (MPlist plist)
- {
- for (; ! plist.IsEmpty; plist = plist.next)
- if (plist.IsPlist)
- {
- MPlist pl = plist.Plist;
- MText title = null;
-
- if (pl.IsMText)
- {
- title = pl.Text;
- pl = pl.next;
- }
- if (! pl.IsSymbol)
- continue;
-
- State state = new State (pl.Symbol);
- state.title = title;
- if (states == null)
- states = new MPlist ();
- states.Add (state.name, state);
- for (pl = pl.next; ! pl.IsEmpty; pl = pl.next)
- {
- if (! pl.IsPlist)
- continue;
- MPlist p = pl.Plist;
- if (! p.IsSymbol)
- continue;
- MSymbol map_name = p.Symbol;
- p = p.next;
- Xex.Term term = new Xex.Term (domain, Nprogn, parse_actions (p));
- state.branches.Add (map_name, term);
+ 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];
}
private static Xex.Term Fshift (Xex.Domain domain, Xex.Variable vari,
Xex.Term[] args)
{
- ((Context) domain.context).shift (args[0].Symval);
+ Context ic = (Context) domain.context;
+ State state;
+ if (ic.im.states.TryGetValue (args[0].Symval, out state))
+ ((Context) domain.context).shift (state);
+ else
+ throw new Exception ("Unknown state: " + args[0].Symval);
return args[0];
}
private static Xex.Term Fshiftback (Xex.Domain domain, Xex.Variable vari,
- Xex.Term[] args)
+ Xex.Term[] args)
{
- ((Context) domain.context).shift_back ();
+ ((Context) domain.context).shift (null);
return Tnil;
}
Xex.Variable vari,
Xex.Term[] args)
{
- return new Xex.Term (((Context) domain.context).surrounding_flag);
+ 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 (MPlist p in states)
- str += " " + p.val;
+ foreach (KeyValuePair<Xex.Symbol, State> kv in states)
+ {
+ str += " (" + kv.Key + " " + kv.Value.keymap + ")";
+ }
return str + "))";
}
public class Context
{
- internal static Xex.Symbol Ncandidates_group_size
- = "candidates-group-size";
- public MInputMethod im;
- private MText produced;
+ internal MInputMethod im;
+ 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 Dictionary<Xex.Symbol, int> 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;
+ 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;
-
+ 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;
- public ChangedStatus Changed { get { return changed; } }
+ private void set_cursor (string prefix, int pos)
+ {
+ cursor_pos = pos;
+ }
- public Context (MInputMethod im)
+ internal void reset ()
{
- this.im = im;
- domain = new Xex.Domain (im.domain, this);
- state_list = new List<State> ();
- state_list.Add ((State) im.states.val);
- keys = new KeySeq ();
+ status = im.initial_state.title;
+ produced.Del ();
+ preedit.Del ();
+
+ set_cursor ("reset", 0);
+ marker_positions.Clear ();
+ candidates = null;
+ candidate_show = false;
+
+ state = im.initial_state;
+ prev_state = null;
+ state_preedit.Del ();
+ state_key_head = 0;
+ state_var_values = state_initial_var_values;
+ state_pos = 0;
+
+ keymap = im.initial_state.keymap;
+ keys.keyseq.Clear ();
+
+ preceding_text.Del ();
+ following_text.Del ();
+
+ changed = ChangedStatus.None;
}
+ static Xex.Term[] catch_args = new Xex.Term[2];
+
+ private bool take_actions (Xex.Term[] actions)
+ {
+ catch_args[0] = Tcatch_tag;
+ catch_args[1]= new Xex.Term (domain, Qprogn, actions);
+ Xex.Term term = new Xex.Term (domain, Qcatch, catch_args);
+ term = term.Eval (domain);
+ return (! term.IsSymbol || term.Symval != Tcatch_tag.Symval);
+ }
+
+ 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 (! GetSurroundingText (this, callback_arg)
+ || ! callback_arg.IsMText)
+ return false;
+ if (len < 0)
+ {
+ preceding_text = callback_arg.Text;
+ return (-len <= preceding_text.Length);
+ }
+ following_text = callback_arg.Text;
+ return (len <= following_text.Length);
+ }
+
+ internal int GetSurroundingChar (int pos)
+ {
+ if (! get_surrounding_text (pos < 0 ? pos : pos + 1))
+ return 0;
+ if (pos < 0)
+ return preceding_text[preceding_text.Length + pos];
+ return following_text[pos];
+ }
+
private void adjust_markers (int from, int to, object inserted)
{
int ins = (inserted == null ? 0
: ((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 (Ncandidates_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 mark (MSymbol sym)
- {
- MPlist slot = markers.Find (sym);
-
- if (slot == null)
- markers.Push (sym, cursor_pos);
- else
- slot.val = cursor_pos;
- }
-
internal void pushback (int n)
{
if (n > 0)
internal void commit ()
{
produced.Cat (preedit);
- preedit.Del ();
+ preedit_replace (0, preedit.Length, null);
changed |= ChangedStatus.Preedit;
}
- internal void shift (MSymbol sym)
+ internal void shift (State state)
{
- State state;
-
- if (sym == MSymbol.t)
- {
- state = state_list.Last ();
- if (state_list.Count > 1)
- state_list.RemoveAt (state_list.Count - 1);
- }
- else
- {
- state = (State) im.states.Get (sym);
- if (state == null)
- throw new Exception ("Unknown state: " + state.name);
- }
if (state == null)
{
- state = state_list.Last;
- state_list.RemoveAt (state_list.Count -1);
+ if (prev_state == null)
+ return;
+ state = prev_state;
}
- if (state == (State) im.states.val)
+
+ if (state == im.initial_state)
{
commit ();
- reset ();
+ keys.keyseq.RemoveRange (0, key_head);
+ key_head = 0;
+ if (state != this.state)
+ {
+ domain.RestoreValues (state_initial_var_values);
+ if (state.enter_actions != null)
+ take_actions (state.enter_actions);
+ }
+ prev_state = null;
}
else
{
- state_key_head = key_head;
- state_pos = cursor_pos;
- state_preedit = preedit.Dup ();
- if (state != state_list.Last ())
- {
- state_list.Add (state);
- state_var_values = domain.SaveValues ();
- status = state.title;
- if (status == null)
- status = im.title;
- changed |= ChangedStatus.StateTitle;
- Xex on_entry
- = (Xex) state.branches.Get (MSymbol.t);
- if (on_entry != null)
- on_entry.Eval (domain);
- }
+ if (state != this.state && state.enter_actions != null)
+ take_actions (state.enter_actions);
+ prev_state = this.state;
}
+ save_state ();
+ if (this.state.title != state.title)
+ this.changed |= ChangedStatus.StateTitle;
+ this.state = state;
+ keymap = state.keymap;
}
- internal void reset ()
+ public Context (MInputMethod im)
{
- preedit.Del ();
- state_preedit.Del ();
- produced.Del ();
- markers.Clear ();
- cursor_pos = 0;
- key_head = commit_key_head = 0;
- state_list.Clear ();
- state_list.Add ((State) im.states.Val);
- state_key_head = 0;
- state_pos = 0;
+ 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);
+ 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; } }
+
internal object GetCandidates (out int column)
{
column = 0;
return candidates.Current;
}
- internal void HandleKey ()
+ 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 ()
+ {
+ 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)
+ {
+ if (! take_actions (keymap.map_actions))
+ return false;
+ }
+ else if (keymap.submaps != null)
+ {
+ for (int i = state_key_head; i < key_head; i++)
+ preedit_replace (cursor_pos, cursor_pos,
+ keys.keyseq[i].ToChar ());
+ }
+ if (keymap.submaps == null)
+ {
+ if (keymap.branch_actions != null)
+ {
+ if (! take_actions (keymap.branch_actions))
+ return false;
+ }
+ if (keymap != state.keymap)
+ shift (state);
+ }
+ }
+ else
+ {
+ State current_state = state;
+
+ if (keymap.branch_actions != null)
+ {
+ if (! take_actions (keymap.branch_actions))
+ return false;
+ }
+ if (state == current_state)
+ {
+ if (state == im.initial_state
+ && key_head < keys.keyseq.Count)
+ return false;
+ if (keymap != state.keymap)
+ shift (state);
+ else if (keymap.branch_actions == null)
+ shift (im.initial_state);
+ }
+ }
+ return true;
}
public bool Toggle ()
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 (check_reload (key))
+ if (! active)
+ {
+ key_unhandled = true;
+ unhandled_key = key;
+ return false;
+ }
+ if (key == Key.Reload)
return true;
changed = ChangedStatus.None;
produced.Del ();
following_text.Del ();
key_unhandled = false;
- keys.Add (key);
+ keys.keyseq.Add (key);
int count = 0;
- while (key_head < keys.Length)
+ while (key_head < keys.keyseq.Count)
{
if (! handle_key ())
{
- unhandled_key = keys[key_head++];
+ unhandled_key = keys.keyseq[key_head++];
key_unhandled = true;
break;
}
- if (++count == 100)
+ if (++count == 10)
break;
}
- keys.RemoveRange (0, key_head);
+ 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