using System;
using System.Collections;
+using System.IO;
+using M17N;
using M17N.Core;
namespace M17N.Core
Val = null;
}
+ public MPlist (MStreamReader reader)
+ {
+ MSymbol key;
+ object val;
+ bool result = reader.ReadElement (out key, out val);
+
+ Key = key;
+ Val = val;
+ if (result)
+ next = new MPlist (reader);
+ }
+
private MPlist (MSymbol key, object val)
{
Key = key;
public bool IsEmpty { get { return next == null; } }
public MPlist Next { get { return next; } }
+ internal bool IsSymbol { get { return Key == MSymbol.symbol; } }
+ internal bool IsMText { get { return Key == MSymbol.mtext; } }
+ internal bool IsPlist { get { return Key == MSymbol.plist; } }
+ internal bool IsInteger { get { return Key == MSymbol.integer; } }
+
+ internal MSymbol Symbol { get { return (MSymbol) Val; } }
+ internal MText Text { get { return (MText) Val; } }
+ internal MPlist Plist { get { return (MPlist) Val; } }
+ internal int Integer { get { return (int) Val; } }
+
public int Count
{
get
public override string ToString ()
{
- string str = "";
+ string str = "(";
for (MPlist p = this; ! p.IsEmpty; p = p.next)
{
- str += (p == this ? "(" : " ") + p.Key + ":" + p.Val;
+ if (p != this)
+ str += " ";
+ if (p.Key != MSymbol.symbol
+ && p.Key != MSymbol.integer
+ && p.Key != MSymbol.plist
+ && p.Key != MSymbol.mtext)
+ str += p.Key + ":";
+ str += p.Val;
}
return str + ")";
}
return find (key).Val;
}
+ private delegate MPlist MPlistDelegate (MSymbol key, object val);
+
+ private MPlist mplist_op (MPlistDelegate op, object val)
+ {
+ Type type = val.GetType ();
+
+ if (Object.ReferenceEquals (type, typeof (MSymbol)))
+ return op (MSymbol.symbol, val);
+ if (Object.ReferenceEquals (type, typeof (MText)))
+ return op (MSymbol.mtext, val);
+ if (Object.ReferenceEquals (type, typeof (MPlist)))
+ return op (MSymbol.plist, val);
+ if (Object.ReferenceEquals (type, typeof (int)))
+ return op (MSymbol.integer, val);
+ return op (MSymbol.t, val);
+ }
+
public MPlist Set (MSymbol key, object val)
{
if (IsEmpty)
return this;
}
+ public MPlist Set (object val)
+ {
+ return mplist_op (Set, val);
+ }
+
public MPlist Put (MSymbol key, object val)
{
return find (key).Set (key, val);
}
+ public MPlist Put (object val)
+ {
+ return mplist_op (Put, val);
+ }
+
public MPlist Push (MSymbol key, object val)
{
MPlist p = new MPlist (Key, Val);
return this;
}
- public object Pop ()
+ public MPlist Push (object val)
+ {
+ return mplist_op (Push, val);
+ }
+
+ public object Pop (out MSymbol key)
{
+ key = Key;
if (IsEmpty)
return null;
return val;
}
+ public object Pop ()
+ {
+ MSymbol key;
+ return Pop (out key);
+ }
+
public MPlist Add (MSymbol key, object val)
{
MPlist p;
}
}
}
+
+ public class MStreamReader : StreamReader
+ {
+ private static char[] escaped_char = new char[128];
+ private static int[] hexadecimal = new int[128];
+
+ public MStreamReader (Stream stream) : base (stream)
+ {
+ }
+
+ static MStreamReader ()
+ {
+ for (int i = 0; i < 128; i++)
+ escaped_char[i] = (char) i;
+ escaped_char['e'] = (char) 27;
+ escaped_char['b'] = '\b';
+ escaped_char['f'] = '\f';
+ escaped_char['n'] = '\n';
+ escaped_char['r'] = '\r';
+ escaped_char['t'] = '\t';
+ escaped_char['\\'] = '\\';
+ for (int i = 0; i < 128; i++)
+ hexadecimal[i] = -1;
+ for (int i = '0'; i <= '9'; i++)
+ hexadecimal[i] = i - '0';
+ for (int i = 'A'; i <= 'F'; i++)
+ hexadecimal[i] = hexadecimal[i + 'a' - 'A'] = i -'A' + 10;
+ }
+
+ internal int PeekChar ()
+ {
+ bool comment = false;
+ int c;
+
+ while ((c = Peek ()) != -1)
+ {
+ if (comment)
+ {
+ if ((c = Read ()) == '\n')
+ comment = false;
+ }
+ else
+ {
+ if (c == ';')
+ comment = true;
+ else if (c != ' ' && c != '\t' && c != '\n')
+ return c;
+ Read ();
+ }
+ }
+ return c;
+ }
+
+ internal int ReadHexadecimal ()
+ {
+ int i = 0, c;
+
+ while ((c = Peek ()) >= 0 && c < 128 && (c = hexadecimal[c]) >= 0)
+ {
+ Read ();
+ i = (i * 16) + c;
+ }
+ return i;
+ }
+
+ internal int ReadInteger ()
+ {
+ int i = 0, c;
+
+ while ((c = Peek ()) >= '0' && c <= '9')
+ i = (i * 10) + (Read () - '0');
+ return i;
+ }
+
+ internal int ReadChar ()
+ {
+ int c = Read ();
+
+ if (c == '\\')
+ {
+ c = Read ();
+ if (c == -1)
+ return -1;
+ if (c == 'x' || c == 'u')
+ return ReadHexadecimal ();
+ if (c < 128)
+ c = escaped_char[c];
+ }
+ return c;
+ }
+
+ internal MText ReadMtext ()
+ {
+ MText mt = new MText ();
+ int c;
+
+ while ((c = Peek ()) != -1 && c != '"')
+ {
+ if (c == '\\')
+ {
+ c = ReadChar ();
+ if (Peek () == '\n')
+ {
+ ReadChar ();
+ continue;
+ }
+ if (c == -1)
+ {
+ mt.Cat ('\\');
+ break;
+ }
+ mt.Cat (c);
+ }
+ else
+ mt.Cat (Read ());
+ }
+ if (c == '"')
+ Read ();
+ return mt;
+ }
+
+ internal string ReadSymbolName ()
+ {
+ int c = Peek ();
+
+ if (c == -1 || c == '(' || c == ' ' || c == '\n' || c == '"')
+ return "";
+ Read ();
+ if (c == '\\')
+ {
+ c = Read ();
+ if (c == -1)
+ c = '\\';
+ }
+ return (char) c + ReadSymbolName ();
+ }
+
+ internal bool ReadElement (out MSymbol key, out object val)
+ {
+ int c = PeekChar ();
+
+ if (c == '(')
+ {
+ Read ();
+ val = new MPlist (this);
+ key = MSymbol.plist;
+ }
+ else if (c == '"')
+ {
+ Read ();
+ val = ReadMtext ();
+ key = MSymbol.mtext;
+ }
+ else if (c >= '0' && c <= '9')
+ {
+ int i = ReadInteger ();
+
+ val = i;
+ key = MSymbol.integer;
+ }
+ else if (c == '-')
+ {
+ Read ();
+ c = Peek ();
+ if (c >= '0' && c <= '9')
+ {
+ int i = ReadInteger ();
+ val = - i;
+ key = MSymbol.integer;
+ }
+ else
+ {
+ string str = ReadSymbolName ();
+
+ val = new MSymbol ("-" + str);
+ key = MSymbol.symbol;
+ }
+ }
+ else if (c == '?')
+ {
+ Read ();
+ val = ReadChar ();
+ key = MSymbol.integer;
+ }
+ else if (c == '#')
+ {
+ Read ();
+ if ((c = Peek ()) == 'x' || c == 'u')
+ {
+ Read ();
+ val = ReadHexadecimal ();
+ key = MSymbol.integer;
+ }
+ else
+ {
+ string str = ReadSymbolName ();
+
+ val = new MSymbol ("#" + (char) c + str);
+ key = MSymbol.symbol;
+ }
+ }
+ else if (c == -1 || c == ')')
+ {
+ if (c == ')')
+ Read ();
+ val = null;
+ key = MSymbol.nil;
+ return false;
+ }
+ else
+ {
+ val = new MSymbol (ReadSymbolName ());
+ key = MSymbol.symbol;
+ }
+ return true;
+ }
+ }
}
projects / m17n / m17n-lib-cs.git / blobdiff