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using System;
using System.Text;
using System.Collections.Generic;
using System.Linq;
namespace Crow.Coding
{
public class CodeLine
{
public string Content;
public List<Token> Tokens;
public int EndingState = 0;
public Node SyntacticNode;
public ParserException exception;
public CodeLine (string _content){
Content = _content;
Tokens = null;
exception = null;
}
public char this[int i]
{
get { return Content[i]; }
set {
if (Content [i] == value)
return;
StringBuilder sb = new StringBuilder(Content);
sb[i] = value;
Content = sb.ToString();
Tokens = null;
//LineUpadateEvent.Raise (this, new CodeBufferEventArgs (i));
}
}
public bool IsFoldable { get { return SyntacticNode == null ? false :
SyntacticNode.EndLine != SyntacticNode.StartLine && SyntacticNode.EndLine != null; } }
public int FoldingLevel { get { return IsFoldable ? SyntacticNode.Level : 0; } }
public bool IsFolded = false;
public bool IsParsed {
get { return Tokens != null; }
}
public string PrintableContent {
get {
return string.IsNullOrEmpty (Content) ? "" : Content.Replace ("\t", new String (' ', Interface.TabSize));
}
}
public int PrintableLength {
get {
return PrintableContent.Length;
}
}
public int Length {
get {
return string.IsNullOrEmpty (Content) ? 0 : Content.Length;
}
}
public int FirstNonBlankTokIndex {
get { return Tokens == null ? -1 : Tokens.FindIndex (tk=>tk.Type != BufferParser.TokenType.WhiteSpace); }
}
public void SetLineInError (ParserException ex) {
Tokens = null;
exception = ex;
}
// public static implicit operator string(CodeLine sl) {
// return sl == null ? "" : sl.Content;
// }
public static implicit operator CodeLine(string s) {
return new CodeLine(s);
}
public static bool operator ==(string s1, CodeLine s2)
{
return string.Equals (s1, s2.Content);
}
public static bool operator !=(string s1, CodeLine s2)
{
return !string.Equals (s1, s2.Content);
}
}
}
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