/// <summary>Match a character sequence against this pattern.</summary>
/// <remarks>Match a character sequence against this pattern.</remarks>
/// <param name="rcs">
/// the sequence to match. Must not be null but the length of the
/// sequence is permitted to be 0.
/// </param>
/// <returns>
/// offset within <code>rcs</code> of the first occurrence of this
/// pattern; -1 if this pattern does not appear at any position of
/// <code>rcs</code>.
/// </returns>
public virtual int Match(RawCharSequence rcs)
{
int needleLen = needle.Length;
byte first = needle[0];
byte[] text = rcs.buffer;
int matchPos = rcs.startPtr;
int maxPos = rcs.endPtr - needleLen;
for (; matchPos < maxPos; matchPos++)
{
if (Neq(first, text[matchPos]))
{
while (++matchPos < maxPos && Neq(first, text[matchPos]))
{
}
if (matchPos == maxPos)
{
return(-1);
}
}
int si = ++matchPos;
for (int j = 1; j < needleLen; j++, si++)
{
if (Neq(needle[j], text[si]))
{
goto OUTER_continue;
}
}
return(matchPos - 1);
OUTER_continue :;
}
OUTER_break :;
return(-1);
}
/// <summary>Match a character sequence against this pattern.</summary>
/// <remarks>Match a character sequence against this pattern.</remarks>
/// <param name="rcs">
/// the sequence to match. Must not be null but the length of the
/// sequence is permitted to be 0.
/// </param>
/// <returns>
/// offset within <code>rcs</code> of the first occurrence of this
/// pattern; -1 if this pattern does not appear at any position of
/// <code>rcs</code>.
/// </returns>
public virtual int Match(RawCharSequence rcs)
{
int needleLen = needle.Length;
byte first = needle[0];
byte[] text = rcs.buffer;
int matchPos = rcs.startPtr;
int maxPos = rcs.endPtr - needleLen;
for (; matchPos < maxPos; matchPos++)
{
if (Neq(first, text[matchPos]))
{
while (++matchPos < maxPos && Neq(first, text[matchPos]))
{
}
if (matchPos == maxPos)
{
return -1;
}
}
int si = ++matchPos;
for (int j = 1; j < needleLen; j++, si++)
{
if (Neq(needle[j], text[si]))
{
goto OUTER_continue;
}
}
return matchPos - 1;
OUTER_continue: ;
}
OUTER_break: ;
return -1;
}