// ================ TextBuffer Initialization ===================
/// <summary>
/// Create and initialize a TextBuff buffer object for this scanner.
/// TextBuff is a buffer for encoded unicode files.
/// </summary>
/// <param name="source">the input text file</param>
/// <param name="fallbackCodepage">Codepage to use if file has
/// no BOM. For 0, use machine default; for -1, 8-bit binary</param>
public void SetSource(Stream source, int fallbackCodepage)
{
this.buffer = TextBuff.NewTextBuff(source, fallbackCodepage);
this.lNum = 0;
this.cNum = -1;
this.chr = '\n'; // to initialize yyline, yycol and lineStart
GetChr();
}
// =============== StreamBuffer Initialization ==================
/// <summary>
/// Create and initialize a StreamBuff buffer object for this scanner.
/// StreamBuff is buffer for 8-bit byte files.
/// </summary>
/// <param name="source">the input byte stream</param>
public void SetSource(Stream source)
{
this.buffer = new StreamBuff(source);
this.lNum = 0;
this.cNum = -1;
this.chr = '\n'; // to initialize yyline, yycol and lineStart
GetChr();
}
// ==============================================================
// ===== Initialization of string-based input buffers ====
// ==============================================================
/// <summary>
/// Create and initialize a StringBuff buffer object for this scanner
/// </summary>
/// <param name="source">the input string</param>
/// <param name="offset">starting offset in the string</param>
public void SetSource(string source, int offset)
{
this.buffer = new StringBuff(source);
this.buffer.Pos = offset;
this.lNum = 0;
this.cNum = offset - 1;
this.chr = '\n'; // to initialize yyline, yycol and lineStart
GetChr();
}
// ================ LineBuffer Initialization ===================
/// <summary>
/// Create and initialize a LineBuff buffer object for this scanner
/// </summary>
/// <param name="source">the list of input strings</param>
public void SetSource(IList<string> source)
{
this.buffer = new LineBuff(source);
this.chr = '\n'; // to initialize yyline, yycol and lineStart
this.lNum = 0;
this.cNum = -1;
GetChr();
}
/// <summary>
/// This method restores the buffer value and allied
/// scanner state from the given context record value.
/// </summary>
void RestoreBuffCtx(BufferContext value)
{
this.buffer = value.buffSv;
this.chr = value.chrSv;
this.cNum = value.cNumSv;
this.lNum = value.lNumSv;
this.lineStartNum = value.startSv;
}