public int LastIndexOf(IStringView other, StringComparison sc = StringComparison.Ordinal)
{
if (Length < other.Length)
{
return(-1);
}
int otherIndex = other.Length - 1;
for (var i = Length - 1; i >= 0 && otherIndex >= 0; --i)
{
if (!Compare(this[i], other[otherIndex], sc))
{
otherIndex = other.Length - 1;
}
else
{
if (otherIndex == 0)
{
return(i);
}
otherIndex--;
}
}
return(-1);
}
public static bool IsNullOrEmpty(this IStringView sv)
{
if (sv == null || !sv.valid)
{
return(true);
}
return(sv.length == 0);
}
// True if 'src' starts with 'pattern'
private static bool Match(IStringView src, int start, string pattern)
{
int i = 0, iend = pattern.Length;
if (start + pattern.Length > src.Length)
{
return(false);
}
for (; i != iend && src[start + i] == pattern[i]; ++i)
{
}
return(i == iend);
}
public static bool IsNullOrWhiteSpace(this IStringView sv)
{
if (sv.IsNullOrEmpty())
{
return(true);
}
for (var i = 0; i < sv.length; ++i)
{
if (!char.IsWhiteSpace(sv[i]))
{
return(false);
}
}
return(true);
}
public bool StartsWith(IStringView v, StringComparison sc = StringComparison.Ordinal)
{
if (v.length > length)
{
return(false);
}
for (var i = 0; i < v.length; ++i)
{
if (!StringView.Compare(this[i], v[i], sc))
{
return(false);
}
}
return(true);
}
public bool EndsWith(IStringView v, StringComparison sc = StringComparison.Ordinal)
{
if (v.Length > Length)
{
return(false);
}
for (var i = 0; i < v.Length; ++i)
{
if (!Compare(this[Length - v.Length + i], v[i], sc))
{
return(false);
}
}
return(true);
}
public int IndexOf(IStringView other, StringComparison sc = StringComparison.Ordinal)
{
if (!valid || !other.valid)
{
return(-1);
}
if (Length < other.Length)
{
return(-1);
}
int foundStartIndex = -1;
int otherIndex = 0;
for (var i = 0; i < Length && otherIndex < other.Length; ++i)
{
if (!Compare(this[i], other[otherIndex], sc))
{
if (foundStartIndex > -1)
{
foundStartIndex = -1;
otherIndex = 0;
}
}
else
{
if (foundStartIndex == -1)
{
foundStartIndex = i;
}
otherIndex++;
}
}
if (otherIndex != other.Length)
{
return(-1);
}
return(foundStartIndex);
}
public bool Equals(IStringView other, StringComparison comparisonOptions = StringComparison.OrdinalIgnoreCase)
{
if (other is StringView sv)
{
return(Equals(sv, comparisonOptions));
}
if (other?.Length != Length)
{
return(false);
}
for (var i = 0; i < Length; ++i)
{
if (!Compare(this[i], other[i], comparisonOptions))
{
return(false);
}
}
return(true);
}
bool IStringView.Equals(IStringView other, StringComparison comparisonOptions)
{
return(Equals(other, comparisonOptions));
}
bool IStringView.StartsWith(IStringView v, StringComparison sc)
{
return(StartsWith(v, sc));
}
public bool WithinComment(IStringView src, int i)
{
// This function requires 'src' because we need to look ahead
// to say whether we're in a comment.
switch (m_comment)
{
case EType.None:
{
if (m_lit.WithinLiteral(src[i]))
{
}
else if (m_emit == 0 && m_pat.m_line_comment.Length != 0 && Match(src, i, m_pat.m_line_comment))
{
m_comment = EType.Line;
m_emit = m_pat.m_line_comment.Length;
m_escape = false;
}
else if (m_emit == 0 && m_pat.m_block_beg.Length != 0 && Match(src, i, m_pat.m_block_beg))
{
m_comment = EType.Block;
m_emit = m_pat.m_block_beg.Length;
}
break;
}
case EType.Line:
{
if (src[i] == '\0')
{
m_comment = EType.None;
m_emit = 0;
}
else if (m_emit == 0 && !m_escape && Match(src, i, m_pat.m_line_end))
{
m_comment = EType.None;
m_emit = 0; // line comments don't include the line end
}
m_escape = src[i] == LineContinuation;
break;
}
case EType.Block:
{
if (src[i] == '\0')
{
m_comment = EType.Block;
m_emit = 0;
}
else if (m_emit == 0 && Match(src, i, m_pat.m_block_end))
{
m_comment = EType.None;
m_emit = m_pat.m_block_end.Length;
}
break;
}
default:
{
throw new Exception("Unknown comment state");
}
}
IsWithinComment = m_comment != EType.None || m_emit != 0;
m_emit -= m_emit != 0 ? 1 : 0;
return(IsWithinComment);
}
bool IStringView.EndsWith(IStringView v, StringComparison sc)
{
return(EndsWith(v, sc));
}
public CopyToClipboardPopupMenuIcon(Context context, IStringView stringView)
{
_context = context;
_stringView = stringView;
}
public CopyToClipboardPopupMenuIcon(Context context, IStringView stringView)
{
_context = context;
_stringView = stringView;
}
public bool Contains(IStringView s, StringComparison ordinal = StringComparison.Ordinal)
{
return(IndexOf(s) != -1);
}
int IStringView.LastIndexOf(IStringView other, StringComparison sc)
{
return(LastIndexOf(other, sc));
}
bool IStringView.Contains(IStringView s, StringComparison ordinal)
{
return(Contains(s, ordinal));
}
