public class MTextProperty
{
- private MProperty prop;
- private bool front_sticky;
- private bool rear_sticky;
- private MText mtext;
+ internal MSymbol key;
+ internal object val;
- public MProperty Prop { get { return prop; } }
- public bool FrontSticky { get { return front_sticky; } }
- public bool RearSticky { get { return rear_sticky; } }
- public MText Mtext { get { return mtext; } }
+ [FlagsAttribute]
+ internal enum Flag : byte
+ {
+ None = 0,
+ FrontSticky = 1,
+ RearSticky = 2,
+ Sensitive = 4
+ };
+ internal Flag flags;
+
+ public MSymbol Key { get { return key; } }
+ public object Val { get { return val; } }
+ public bool FrontSticky
+ {
+ get { return (flags & Flag.FrontSticky) != Flag.None; }
+ }
+ public bool RearSticky
+ {
+ get { return (flags & Flag.RearSticky) != Flag.None; }
+ }
+ public bool Sensitive
+ {
+ get { return (flags & Flag.Sensitive) != Flag.None; }
+ }
- public MTextProperty (MProperty prop, bool front_sticky, bool rear_sticky)
+ public MTextProperty (MSymbol key, object val)
{
- this.prop = prop;
- this.front_sticky = front_sticky;
- this.rear_sticky = rear_sticky;
+ this.key = key;
+ this.val = val;
+ flags |= Flag.RearSticky;
+ }
+
+ public MTextProperty (MSymbol key, object val,
+ bool front_sticky, bool rear_sticky, bool sensitive)
+ {
+ this.key = key;
+ this.val = val;
+ if (front_sticky)
+ flags |= Flag.FrontSticky;
+ if (rear_sticky)
+ flags |= Flag.RearSticky;
+ if (sensitive)
+ flags |= Flag.Sensitive;
+ }
+
+ public override string ToString ()
+ {
+ return key.ToString () + ":" + val;
}
}
private int cache_pos;
private int cache_idx;
private MPlist intervals;
- private MProperty default_property;
+ private MPlist default_property;
private bool read_only;
private static UTF8Encoding utf8 = new UTF8Encoding ();
public MText ()
{
sb = new StringBuilder ();
+ intervals = new MPlist ();
}
public MText (byte[] str)
{
sb = new StringBuilder (utf8.GetString (str));
nchars = count_chars (sb);
+ intervals = new MPlist ();
}
public MText (String str)
{
sb = new StringBuilder (str);
nchars = count_chars (str);
+ intervals = new MPlist ();
}
public MText (StringBuilder str)
{
sb = str;
nchars = count_chars (str);
+ intervals = new MPlist ();
}
public static MText operator+ (MText mt1, MText mt2)
return this.sb.ToString ().CompareTo (other.sb.ToString ());
}
- public override String ToString () { return sb.ToString (); }
+ public override String ToString () { return "\"" + sb.ToString () + "\""; }
private static bool surrogate_high_p (char c)
{
return i;
}
+ private void check_pos (int pos, bool tail_ok)
+ {
+ if (pos < 0 || (tail_ok ? pos > nchars : pos >= nchars))
+ throw new Exception ("Invalid MText position:" + pos);
+ }
+
+ private void check_range (int from, int to, bool zero_ok)
+ {
+ if (from < 0 || (zero_ok ? from > to : from >= to)
+ || to > nchars)
+ throw new Exception ("Invalid MText range");
+ }
+
private void insert (int pos, MText mt2, int from, int to)
{
+ check_pos (pos, true);
+
int pos_idx = pos_to_idx (this, pos);
int from_idx = pos_to_idx (mt2, from);
int to_idx = pos_to_idx (mt2, to);
sb.Insert (pos_idx, mt2.sb.ToString (from_idx, to_idx - from_idx));
nchars += to - from;
- if (mt2.intervals != null
- && ! mt2.intervals.tailp)
+ foreach (MPlist plist in mt2.intervals)
+ if (intervals.Find (plist.Key) == null)
+ intervals.Push (plist.Key, new MInterval (plist.Key, this));
+ foreach (MPlist plist in intervals)
{
- if (intervals == null)
- intervals = new MPlist ();
- foreach (MInterval interval in mt2.intervals)
- if (intervals.find (interval.key) == null)
- intervals.push (interval.key, new MInterval (interval.key, mt));
- }
+ MPlist p = mt2.intervals.Find (plist.Key);
+ MInterval interval;
- if (intervals != null)
- {
- foreach (MInterval root in intervals)
- {
- MInterval interval;
-
- if (mt2.intervals != null
- && ! mt2.intervals.tailp)
- {
- interval = mt2.intervals.find (root.key);
- if (interval != null)
- interval = interval.CopyTree (from, to);
- }
- if (interval == null)
- interval = new MInterval (root.key, to - from);
- root.Insert (pos, interval);
+ if (p.IsEmpty)
+ interval = new MInterval (plist.Key, to - from);
+ else
+ interval = ((MInterval) p.Val).copy (from, to);
+ ((MInterval) plist.Val).Insert (pos, interval);
}
}
}
}
- public MText dup ()
+ public MText Dup ()
{
return (new MText (sb.ToString ()));
}
- public MText ins (int pos, MText mt)
+ public MText Ins (int pos, MText mt)
{
insert (pos, mt, 0, mt.nchars);
return this;
}
- public MText ins (int pos, MText mt, int from, int to)
+ public MText Ins (int pos, MText mt, int from, int to)
{
insert (pos, mt, from, to);
return this;
}
- public MText del (int from, int to)
+ public MText Del (int from, int to)
{
+ check_range (from, to, true);
+
sb.Remove (from, pos_to_idx (this, to) - pos_to_idx (this, from));
nchars -= to - from;
+
+ if (nchars > 0)
+ foreach (MPlist plist in intervals)
+ ((MInterval) plist.Val).Delete (from, to);
+ else
+ intervals = new MPlist ();
return this;
}
+ public object GetProp (int pos, MSymbol key)
+ {
+ check_pos (pos, false);
+
+ MInterval i = (MInterval) intervals.Find (key).Val;
+
+ if (i == null)
+ return null;
+
+ MTextProperty prop = i.Get (pos);
+ return (prop != null ? prop.Val : null);
+ }
+
+ public object GetProp (int pos, MSymbol key, out MTextProperty prop)
+ {
+ check_pos (pos, false);
+
+ MInterval i = (MInterval) intervals.Find (key).Val;
+
+ if (i == null)
+ return (prop = null);
+ prop = i.Get (pos);
+ return (prop != null ? prop.Val : null);
+ }
+
+ public object GetProp (int pos, MSymbol key, out MTextProperty[] array)
+ {
+ check_pos (pos, false);
+
+ MInterval i = (MInterval) intervals.Find (key).Val;
+
+ if (i == null)
+ return (array = null);
+ MTextProperty prop = i.Get (pos, out array);
+ return (prop != null ? prop.Val : null);
+ }
+
+ public void PushProp (int from, int to, MSymbol key, object val)
+ {
+ check_range (from, to, false);
+
+ PushProp (from, to, new MTextProperty (key, val));
+ }
+
public void PushProp (int from, int to, MTextProperty prop)
{
- MInterval root;
+ if (from < 0)
+ {
+ if (default_property == null)
+ default_property = new MPlist ();
+ default_property.Push (prop.key, prop.val);
+ }
+ else
+ {
+ MInterval root = (MInterval) intervals.Find (prop.key).Val;
- if (intervals == null
- || (root = intervals.find (prop.key)) )
- intervals = new MPlist (prop.key, new MInterval (prop.key, this));
+ if (root == null)
+ {
+ root = new MInterval (prop.key, this);
+ intervals.Push (prop.key, root);
+ }
+ root.Push (from, to, prop);
+ }
+ }
- root_interval.Push (from, to, prop);
+ public void DumpProp ()
+ {
+ Console.Write ("(");
+ foreach (MPlist p in intervals)
+ ((MInterval) p.Val).Dump ();
+ Console.WriteLine (")");
}
private class MInterval
{
- // position: 0 1 2 3
- // | A | B | C |
- // interval |<--------->|<--------->|<--------->|
+ // position: 0 1 2 3 4 5 6 7
+ // | A | B | C | D | E F | G |
+ // interval |---|---|---|<->|-------|---|
+ // |---|<->|---| |<----->|---|
+ // |<->| |<->| |<->|
//
- // [3 (1 2)]
- // [1 (0 1)] [1 (2 3)]
+ // [7 (3 4)]
+ // [3 (1 2)] [3 (4 6)]
+ // [1 (0 1)] [2 (2 3)] [1 (6 7)]
+ //
+ private static int count = 0;
+ private int id;
private int total_length;
private int from, to;
private MSymbol key;
- private Stack<MTextProperty> stack;
+ private MPlist stack;
private MInterval left, right, parent;
private MText mtext;
throw new Exception ("Invalid interval length");
this.key = key;
total_length = length;
- stack = new Stack<MTextProperty> ();
+ stack = new MPlist ();
+ id = count++;
}
- private MInterval (MSymbol key, int length, Stack<MTextProperty> stack)
+ public MInterval (MSymbol key, MText mt)
{
this.key = key;
- total_length = length;
+ mtext = mt;
+ total_length = mt.sb.Length;
from = 0;
to = total_length;
- stack = new Stack<MTextProperty> (stack);
+ stack = new MPlist ();
+ id = count++;
}
- public MInterval (MSymbol key, MText mt)
+ public MTextProperty Get (int pos)
+ {
+ MInterval i = find (pos);
+
+ return (i.stack.IsEmpty ? null : (MTextProperty) i.stack.Val);
+ }
+
+ public MTextProperty Get (int pos, out MTextProperty[] array)
+ {
+ MInterval i = find (pos);
+
+ if (i.stack.IsEmpty)
+ {
+ array = null;
+ return null;
+ }
+ array = new MTextProperty[i.stack.Count];
+
+ int idx;
+ MPlist p;
+ for (idx = 0, p = i.stack; ! p.IsEmpty; idx++, p = p.Next)
+ array[idx] = (MTextProperty) p.Val;
+ return array[idx - 1];
+ }
+
+ private MInterval (MSymbol key, int length, MPlist stack)
{
this.key = key;
- mtext = mt;
- total_length = mt.sb.Length;
+ total_length = length;
from = 0;
to = total_length;
- stack = new Stack<MTextProperty> ();
+ this.stack = stack.Clone ();
+ id = count++;
}
private void update_from_to ()
{
- if (parent != null)
+ if (parent == null)
+ {
+ from = LeftLength;
+ to = total_length - RightLength;
+ }
+ else if (parent.left == this)
{
from = parent.from - total_length + LeftLength;
to = parent.from - RightLength;
}
+ else
+ {
+ from = parent.to + LeftLength;
+ to = parent.to + total_length - RightLength;
+ }
}
private int LeftLength
get { return (right == null ? 0 : right.total_length); }
}
- private MInterval LeftMostNode
+ private MInterval left_most_node
{
- get { return (left == null ? this : left.LeftMostNode); }
+ get { return (left == null ? this : left.left_most_node); }
}
- private MInterval RightMostNode
+ private MInterval right_most_node
{
- get { return (right == null ? this : right.RightMostNode); }
+ get { return (right == null ? this : right.right_most_node); }
}
- private MInterval LeftNode {
+ private MInterval prev {
get {
MInterval i;
}
}
- private MInterval RightNode {
+ private MInterval next {
get {
MInterval i;
MInterval c1;
if (parent == null)
- mtext.root_intervals.put (key, right);
+ mtext.intervals.Put (key, right);
else if (parent.left == this)
parent.left = right;
else
MInterval c1;
if (parent == null)
- mtext.update_root_interval (key, left);
+ mtext.intervals.Put (key, left);
else if (parent.left == this)
parent.left = left;
else
private MInterval balance ()
{
- MInteval i = this;
+ MInterval i = this;
while (true)
{
i.left.balance ();
}
}
- return interval;
+ return i;
}
- public MInterval CopyTree (int start, int end)
+ public MInterval copy (int start, int end)
{
- MInterval this_copy, left_copy, right_copy;
+ MInterval this_copy, left_copy = null, right_copy = null;
update_from_to ();
if (start < from)
{
if (end <= from)
- return left.CopyTree (start, end);
- left_copy = left.CopyTree (start, from);
+ return left.copy (start, end);
+ left_copy = left.copy (start, from);
}
else if (end > to)
{
if (start >= to)
- return right.CopyTree (start, end);
- right_copy = right.CopyTree (to, end);
+ return right.copy (start, end);
+ right_copy = right.copy (to, end);
}
- this_copy = MInteval (key, end - start, stack);
+ this_copy = new MInterval (key, end - start, stack);
this_copy.left = left_copy;
this_copy.right = right_copy;
// right
private MInterval divide_right (int pos)
{
- MInterval interval;
+ MInterval interval = new MInterval (key, to - pos, stack);
- update_from_to ();
- interval = new MInterval (key, to - pos, stack);
-
- total_length -= to - pos;
+ Console.Write ("divide-right({0}) at ", pos); DumpOne (false, true);
+ to = pos;
if (right != null)
{
- right->parent = interval;
- interval.total_length += right->total_length;
+ interval.right = right;
+ right.parent = interval;
+ interval.total_length += right.total_length;
}
- interval->parent = this;
+ interval.parent = this;
right = interval;
return interval;
}
// left
private MInterval divide_left (int pos)
{
- MInterval interval = CopyNode ();
- int this_start = Start;
- int this_end = End;
+ MInterval interval = new MInterval (key, pos - from, stack);
- if (left == null
- || (right != null && left.total_end < - right.total_start))
+ Console.Write ("divide-reft({0}) at ", pos); DumpOne (false, true);
+ from = pos;
+ if (left != null)
{
- interval.total_start = 0;
- interval.total_end = pos - this_start;
- if (left != null)
- left.parent = interval;
- left = interval;
+ interval.left = left;
+ left.parent = interval;
+ interval.total_length += left.total_length;
}
- else
+ interval.parent = this;
+ left = interval;
+ return interval;
+ }
+
+ private void remove_properties (MTextProperty.Flag flags)
+ {
+ for (MPlist p = stack; ! p.IsEmpty;)
{
- interval.right = this;
- interval.left = left;
- interval.parent = parent;
- if (parent != null)
+ MTextProperty prop = (MTextProperty) p.Val;
+
+ if ((prop.flags & flags) == flags)
+ p.Pop ();
+ else
+ p = p.Next;
+ }
+ }
+
+ private void merge_front_properties (MPlist plist)
+ {
+ for (MInterval i = left_most_node; i != null; i = i.next)
+ {
+ if (! stack.IsEmpty)
+ break;
+ for (MPlist p = plist; ! p.IsEmpty; p = p.Next)
{
- if (total_start == 0)
- parent.left = interval;
- else
- parent.right = interval;
+ MTextProperty prop = (MTextProperty) p.Val;
+
+ if ((prop.flags & MTextProperty.Flag.RearSticky)
+ == MTextProperty.Flag.RearSticky)
+ i.stack.Push (prop.key, prop);
}
- total_start = pos - this_end;
- total_end = 0;
}
+ }
- return interval;
+ private void merge_rear_properties (MPlist plist)
+ {
+ for (MInterval i = right_most_node; i != null; i = i.prev)
+ {
+ if (! stack.IsEmpty)
+ break;
+ for (MPlist p = plist; ! p.IsEmpty; p = p.Next)
+ {
+ MTextProperty prop = (MTextProperty) p.Val;
+
+ if ((prop.flags & MTextProperty.Flag.FrontSticky)
+ == MTextProperty.Flag.FrontSticky)
+ i.stack.Push (prop.key, prop);
+ }
+ }
}
public void Insert (int pos, MInterval interval)
{
update_from_to ();
- if (pos < from)
+ Console.Write ("insert({0}) at ", pos); DumpOne (false, true);
+ if (pos < from || (pos == from && left == null && pos > 0))
{
- LeftNode.Insert (pos, interval);
+ prev.Insert (pos, interval);
return;
}
- if (pos >= to)
+ if (pos > to || (pos == to && right == null && next != null))
{
- RightNode.Insert (pos, interval);
+ next.Insert (pos, interval);
return;
}
- if (pos > from)
+ if (pos > from && pos < to)
{
+ remove_properties (MTextProperty.Flag.Sensitive);
divide_right (pos).Insert (pos, interval);
return;
}
-
- // POS == FROM
- if (left != null && LeftNode.stack.Count > 0)
+ if (pos == from)
{
- Stack<MTextProperty> s = new Stack<MTextProperty> ();
-
- foreach (MTextProperty p in LeftNode.stack)
- if (p.RearSticky)
- s.Push (p);
- if (s.Count > 0)
+ if (pos > 0)
+ {
+ prev.remove_properties
+ (MTextProperty.Flag.Sensitive|MTextProperty.Flag.RearSticky);
+ interval.merge_front_properties (prev.stack);
+ }
+ remove_properties
+ (MTextProperty.Flag.Sensitive|MTextProperty.Flag.FrontSticky);
+ interval.merge_rear_properties (stack);
+
+ // INTERVAL is ready to insert.
+ //
+ // .-this-. ==> .-this-.
+ // left-. left-.
+ // child .-interval
+ // child
+
+ if (pos > 0)
+ {
+ MInterval i = left.right_most_node;
+
+ i.left = interval;
+ interval.parent = i;
+ for (; i != null; i = i.parent)
+ i.total_length += interval.total_length;
+ }
+ else
{
- for (MInterval i = interval.LeftMost;
- i != null && i.stack.Count == 0;
- i = i.LeftNode)
- foreach (MTextProperty p in s)
- i.stack.Push (p);
+ left = interval;
+
+ for (MInterval i = this; i != null; i = i.parent)
+ i.total_length += interval.total_length;
}
}
- if (stack.Count > 0)
+ else // pos == to
{
- Stack<MTextProperty> s = new Stack<MTextProperty> ();
+ if (right != null)
+ {
+ MInterval left_most = right.left_most_node;
- foreach (MTextProperty p in stack)
- if (p.FrontSticky)
- s.Push (p);
- if (s.Count > 0)
+ left_most.remove_properties
+ (MTextProperty.Flag.Sensitive|MTextProperty.Flag.FrontSticky);
+ interval.merge_rear_properties (left_most.stack);
+ }
+ remove_properties
+ (MTextProperty.Flag.Sensitive|MTextProperty.Flag.RearSticky);
+ interval.merge_front_properties (stack);
+
+ // INTERVAL is ready to insert.
+ //
+ // .-this-. ==> .-this-.
+ // .-right .-right
+ // child interval-.
+ // child
+
+ if (right != null)
{
- for (MInterval i = interval.RightMostNode;
- i != null && i.stack.Count == 0;
- i = i.RightNode)
- foreach (MTextProperty p in s)
- i.stack.Push (p);
+ MInterval i = right.left_most_node;
+
+ i.left = interval;
+ interval.parent = i;
+ for (; i != null; i = i.parent)
+ i.total_length += interval.total_length;
+ }
+ else
+ {
+ right = interval;
+
+ for (MInterval i = this; i != null; i = i.parent)
+ i.total_length += interval.total_length;
}
}
+ }
- // INTERVAL is ready to insert.
- //
- // .-this-. ==> .-this-.
- // left-. left-.
- // child interval
- // child
+ private void vacate_node (MInterval interval)
+ {
+ Console.WriteLine ("vacate #{0} to #{1}", id, interval.id);
+ if (interval != null)
+ interval.parent = parent;
+ if (parent == null)
+ {
+ mtext.intervals.Put (key, interval);
+ }
+ else
+ {
+ if (this == parent.right)
+ parent.right = interval;
+ else
+ parent.left = interval;
+
+ int diff = total_length;
+ if (interval != null)
+ diff -= interval.total_length;
+ for (MInterval i = parent; i != null; i = i.parent)
+ i.total_length -= diff;
+ }
+ }
- if (left)
+ public void Delete (int start, int end)
+ {
+ update_from_to ();
+ Console.Write ("delete({0} {1}) at ", start, end); DumpOne (false, true);
+ if (start < from)
{
- MInterval i = left.RightMostNode;
-
- i.left = interval;
- interval->parent = i;
- for (; i != null; i = i.parent)
- i.total_length += interval.total_length;
+ if (end <= from)
+ {
+ left.Delete (start, end);
+ return;
+ }
+ left.Delete (start, from);
+ to -= from - start;
+ end -= from - start;
+ from = start;
+ }
+ if (end > to)
+ {
+ if (start >= to)
+ {
+ right.Delete (start, end);
+ return;
+ }
+ right.Delete (to, end);
+ end = to;
+ }
+ if (start == from && end == to)
+ {
+ if (right == null)
+ {
+ vacate_node (left);
+ }
+ else
+ {
+ if (left != null)
+ {
+ MInterval i;
+
+ for (i = right; i.left != null; i = i.left)
+ i.total_length += left.total_length;
+ i.total_length += left.total_length;
+ i.left = left;
+ left.parent = i;
+ }
+ vacate_node (right);
+ }
}
else
{
- left = interval;
+ int len = end - start;
for (MInterval i = this; i != null; i = i.parent)
- i.total_length += interval.total_length;
+ i.total_length -= len;
}
}
- public MTextProperty Push (int start, int end, MTextProperty prop)
+ public void Push (int start, int end, MTextProperty prop)
{
update_from_to ();
+ Console.Write ("push({0} {1}) at ", start, end); DumpOne (false, true);
if (start < from)
{
- left.Push (start, end, prop);
if (end <= from)
- return prop;
+ {
+ left.Push (start, end, prop);
+ return;
+ }
+ left.Push (start, from, prop);
start = from;
}
- else if (end > to)
+ if (end > to)
{
- right.Push (start, end, prop);
if (start >= to)
- return prop;
+ {
+ right.Push (start, end, prop);
+ return;
+ }
+ right.Push (to, end, prop);
end = to;
}
if (start > from)
- divide_left (from);
+ divide_left (start);
if (end < to)
divide_right (end);
- stack.Push (prop);
- return prop;
+ stack.Push (prop.key, prop);
+ }
+
+ private void DumpOne (bool with_prop, bool newline)
+ {
+ Console.Write ("#{0}({1} {2} {3}", id, total_length, from, to);
+ if (with_prop)
+ foreach (MPlist p in stack)
+ Console.Write (" " + p.Val);
+ Console.Write (")");
+ if (newline)
+ Console.WriteLine ();
+ }
+
+ public void Dump ()
+ {
+ update_from_to ();
+
+ if (left != null)
+ left.Dump ();
+ if (from > 0)
+ Console.Write (" ");
+ DumpOne (true, false);
+ if (right != null)
+ right.Dump ();
}
}
projects / m17n / m17n-lib-cs.git / blobdiff