Val = null;
}
- public MPlist (MStreamReader reader)
+ public MPlist (FileStream stream)
{
+ MStreamReader reader = new MStreamReader (stream);
MSymbol key;
object val;
bool result = reader.ReadElement (out key, out val);
next = new MPlist (reader);
}
+ public MPlist (FileStream stream, int count)
+ {
+ MStreamReader reader = new MStreamReader (stream);
+ MSymbol key;
+ object val;
+ bool result = reader.ReadElement (out key, out val);
+
+ Key = key;
+ Val = val;
+ if (result && --count > 0)
+ next = new MPlist (reader, count);
+ else
+ next = new MPlist ();
+ }
+
+ public MPlist (FileStream stream, MSymbol target, MSymbol stop)
+ {
+ MStreamReader reader = new MStreamReader (stream);
+ MSymbol key;
+ object val;
+ bool result;
+
+ Key = MSymbol.nil;
+ Val = null;
+ while (true)
+ {
+ result = reader.ReadElement (out key, out val);
+ if (! result)
+ return;
+ if (key == MSymbol.plist)
+ {
+ MPlist plist = (MPlist) val;
+
+ if (plist.IsSymbol)
+ {
+ if (plist.Symbol == stop)
+ return;
+ if (plist.Symbol == target)
+ {
+ Key = target;
+ Val = val;
+ next = new MPlist ();
+ return;
+ }
+ }
+ }
+ }
+ }
+
+ private 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 (MStreamReader reader, int count)
+ {
+ MSymbol key;
+ object val;
+ bool result = reader.ReadElement (out key, out val);
+
+ Key = key;
+ Val = val;
+ if (result && --count > 0)
+ next = new MPlist (reader, count);
+ else
+ next = new MPlist ();
+ }
+
+ private MPlist (MStreamReader reader, MSymbol target, MSymbol stop)
+ {
+ MSymbol key;
+ object val;
+ bool result;
+
+ Key = MSymbol.nil;
+ Val = null;
+ while (true)
+ {
+ result = reader.ReadElement (out key, out val);
+ if (! result)
+ return;
+ if (key == MSymbol.plist)
+ {
+ MPlist plist = (MPlist) val;
+
+ if (plist.IsSymbol)
+ {
+ if (plist.Symbol == stop)
+ return;
+ if (plist.Symbol == target)
+ {
+ Key = target;
+ Val = val;
+ next = new MPlist ();
+ return;
+ }
+ }
+ }
+ }
+ }
+
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
&& p.Key != MSymbol.plist
&& p.Key != MSymbol.mtext)
str += p.Key + ":";
- str += p.Val;
+ if (p.Key == MSymbol.mtext)
+ str += "\"" + p.Val + "\"";
+ else
+ str += p.Val;
}
return str + ")";
}
return find (key).Val;
}
+ internal MPlist Assq (MSymbol key)
+ {
+ foreach (MPlist p in this)
+ if (p.IsPlist && p.Plist.IsSymbol && p.Plist.Symbol == key)
+ return p;
+ return null;
+ }
+
private delegate MPlist MPlistDelegate (MSymbol key, object val);
private MPlist mplist_op (MPlistDelegate op, object val)
return p.Push (key, val);
}
+ public MPlist Clear ()
+ {
+ Key = MSymbol.nil;
+ Val = null;
+ next = null;
+ return this;
+ }
+
// Implement IEnumerable interface.
// foreach (MPlist p in plist) { ... }
return (! current.IsEmpty);
}
}
- }
-
- 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 ()
+ private class MStreamReader : StreamReader
{
- bool comment = false;
- int c;
+ private static char[] escaped_char = new char[128];
+ private static int[] hexadecimal = new int[128];
- while ((c = Peek ()) != -1)
+ public MStreamReader (Stream stream) : base (stream)
{
- 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)
+ static MStreamReader ()
{
- Read ();
- i = (i * 16) + c;
+ 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;
}
- return i;
- }
- internal int ReadInteger ()
- {
- int i = 0, c;
+ private int PeekChar ()
+ {
+ bool comment = false;
+ int c;
- while ((c = Peek ()) >= '0' && c <= '9')
- i = (i * 10) + (Read () - '0');
- return i;
- }
+ 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 ReadChar ()
- {
- int c = Read ();
+ private int ReadHexadecimal ()
+ {
+ int i = 0, c;
- 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;
- }
+ while ((c = Peek ()) >= 0 && c < 128 && (c = hexadecimal[c]) >= 0)
+ {
+ Read ();
+ i = (i * 16) + c;
+ }
+ return i;
+ }
- internal MText ReadMtext ()
- {
- MText mt = new MText ();
- int c;
+ private int ReadInteger ()
+ {
+ int i = 0, 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;
- }
+ while ((c = Peek ()) >= '0' && c <= '9')
+ i = (i * 10) + (Read () - '0');
+ return i;
+ }
- internal string ReadSymbolName ()
- {
- int c = Peek ();
+ private int ReadChar ()
+ {
+ int c = Read ();
- if (c == -1 || c == '(' || c == ' ' || c == '\n' || c == '"')
- return "";
- Read ();
- if (c == '\\')
- {
- c = Read ();
- if (c == -1)
- c = '\\';
- }
- return (char) c + ReadSymbolName ();
- }
+ 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 bool ReadElement (out MSymbol key, out object val)
- {
- int c = PeekChar ();
+ private MText ReadMtext ()
+ {
+ MText mt = new MText ();
+ int c;
- if (c == '(')
- {
- Read ();
- val = new MPlist (this);
- key = MSymbol.plist;
- }
- else if (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 ();
- val = ReadMtext ();
- key = MSymbol.mtext;
- }
- else if (c >= '0' && c <= '9')
- {
- int i = ReadInteger ();
+ return mt;
+ }
- 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 == ')')
+ private string ReadSymbolName ()
+ {
+ int c = Peek ();
+
+ if (c == -1 || c == '(' || c == ')' || c == ' ' || c == '\n' || c == '"')
+ return "";
+ Read ();
+ if (c == '\\')
+ {
+ c = Read ();
+ if (c == -1)
+ c = '\\';
+ }
+ return (char) c + ReadSymbolName ();
+ }
+
+ public bool ReadElement (out MSymbol key, out object val)
+ {
+ int c = PeekChar ();
+
+ if (c == '(')
+ {
Read ();
- val = null;
- key = MSymbol.nil;
- return false;
- }
- else
- {
- val = new MSymbol (ReadSymbolName ());
- key = MSymbol.symbol;
- }
- return true;
+ 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 = MSymbol.Of ("-" + 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
+ {
+ val = MSymbol.Of ("#" + (char) c + ReadSymbolName ());
+ key = MSymbol.symbol;
+ }
+ }
+ else if (c == -1 || c == ')')
+ {
+ if (c == ')')
+ Read ();
+ val = null;
+ key = MSymbol.nil;
+ return false;
+ }
+ else
+ {
+ val = MSymbol.Of (ReadSymbolName ());
+ key = MSymbol.symbol;
+ }
+ return true;
+ }
}
}
}
projects / m17n / m17n-lib-cs.git / blobdiff