public override AnchorInfo GetAnchorInfo(bool reverse)
{
int width = GetFixedWidth();
if (Minimum == 0)
{
return(new AnchorInfo(this, width));
}
AnchorInfo info = Expression.GetAnchorInfo(reverse);
if (info.IsPosition)
{
return(new AnchorInfo(this, info.Offset, width, info.Position));
}
if (info.IsSubstring)
{
if (info.IsComplete)
{
string str = "";
for (int i = 0; i < Minimum; ++i)
{
str += info.Substring;
}
return(new AnchorInfo(this, 0, width, str, info.IgnoreCase));
}
return(new AnchorInfo(this, info.Offset, width, info.Substring, info.IgnoreCase));
}
return(new AnchorInfo(this, width));
}
public override AnchorInfo GetAnchorInfo(bool reverse)
{
int fixedWidth = base.GetFixedWidth();
if (this.Minimum == 0)
{
return(new AnchorInfo(this, fixedWidth));
}
AnchorInfo anchorInfo = this.Expression.GetAnchorInfo(reverse);
if (anchorInfo.IsPosition)
{
return(new AnchorInfo(this, anchorInfo.Offset, fixedWidth, anchorInfo.Position));
}
if (!anchorInfo.IsSubstring)
{
return(new AnchorInfo(this, fixedWidth));
}
if (anchorInfo.IsComplete)
{
string substring = anchorInfo.Substring;
StringBuilder stringBuilder = new StringBuilder(substring);
for (int i = 1; i < this.Minimum; i++)
{
stringBuilder.Append(substring);
}
return(new AnchorInfo(this, 0, fixedWidth, stringBuilder.ToString(), anchorInfo.IgnoreCase));
}
return(new AnchorInfo(this, anchorInfo.Offset, fixedWidth, anchorInfo.Substring, anchorInfo.IgnoreCase));
}
public override AnchorInfo GetAnchorInfo(bool reverse)
{
int width = GetFixedWidth();
if (Minimum == 0)
{
return(new AnchorInfo(this, width));
}
AnchorInfo info = Expression.GetAnchorInfo(reverse);
if (info.IsPosition)
{
return(new AnchorInfo(this, info.Offset, width, info.Position));
}
if (info.IsSubstring)
{
if (info.IsComplete)
{
// Minimum > 0
string str = info.Substring;
StringBuilder sb = new StringBuilder(str);
for (int i = 1; i < Minimum; ++i)
{
sb.Append(str);
}
return(new AnchorInfo(this, 0, width, sb.ToString(), info.IgnoreCase));
}
return(new AnchorInfo(this, info.Offset, width, info.Substring, info.IgnoreCase));
}
return(new AnchorInfo(this, width));
}
public override void Compile(ICompiler cmp, bool reverse)
{
// info block
int min, max;
GetWidth(out min, out max);
cmp.EmitInfo(group_count, min, max);
// anchoring expression
AnchorInfo info = GetAnchorInfo(reverse);
//if (reverse)
// info = new AnchorInfo (this, GetFixedWidth ()); // FIXME
LinkRef pattern = cmp.NewLink();
cmp.EmitAnchor(reverse, info.Offset, pattern);
if (info.IsPosition)
{
cmp.EmitPosition(info.Position);
}
else if (info.IsSubstring)
{
cmp.EmitString(info.Substring, info.IgnoreCase, reverse);
}
cmp.EmitTrue();
// pattern
cmp.ResolveLink(pattern);
base.Compile(cmp, reverse);
cmp.EmitTrue();
}
public override void Compile(ICompiler cmp, bool reverse)
{
int min;
int max;
this.GetWidth(out min, out max);
cmp.EmitInfo(this.group_count, min, max);
AnchorInfo anchorInfo = this.GetAnchorInfo(reverse);
LinkRef linkRef = cmp.NewLink();
cmp.EmitAnchor(reverse, anchorInfo.Offset, linkRef);
if (anchorInfo.IsPosition)
{
cmp.EmitPosition(anchorInfo.Position);
}
else if (anchorInfo.IsSubstring)
{
cmp.EmitString(anchorInfo.Substring, anchorInfo.IgnoreCase, reverse);
}
cmp.EmitTrue();
cmp.ResolveLink(linkRef);
base.Compile(cmp, reverse);
cmp.EmitTrue();
}
public override AnchorInfo GetAnchorInfo(bool reverse)
{
int ptr;
int width = GetFixedWidth();
ArrayList infos = new ArrayList();
IntervalCollection segments = new IntervalCollection();
// accumulate segments
ptr = 0;
int count = Expressions.Count;
for (int i = 0; i < count; ++i)
{
Expression e;
if (reverse)
{
e = Expressions [count - i - 1];
}
else
{
e = Expressions [i];
}
AnchorInfo info = e.GetAnchorInfo(reverse);
infos.Add(info);
if (info.IsPosition)
{
return(new AnchorInfo(this, ptr + info.Offset, width, info.Position));
}
if (info.IsSubstring)
{
segments.Add(info.GetInterval(ptr));
}
if (info.IsUnknownWidth)
{
break;
}
ptr += info.Width;
}
// normalize and find the longest segment
segments.Normalize();
Interval longest = Interval.Empty;
foreach (Interval segment in segments)
{
if (segment.Size > longest.Size)
{
longest = segment;
}
}
if (longest.IsEmpty)
{
return(new AnchorInfo(this, width));
}
// now chain the substrings that made this segment together
bool ignore = false;
int n_strings = 0;
ptr = 0;
for (int i = 0; i < infos.Count; ++i)
{
AnchorInfo info = (AnchorInfo)infos [i];
if (info.IsSubstring && longest.Contains(info.GetInterval(ptr)))
{
ignore |= info.IgnoreCase;
infos [n_strings++] = info;
}
if (info.IsUnknownWidth)
{
break;
}
ptr += info.Width;
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < n_strings; ++i)
{
AnchorInfo info;
if (reverse)
{
info = (AnchorInfo)infos [n_strings - i - 1];
}
else
{
info = (AnchorInfo)infos [i];
}
sb.Append(info.Substring);
}
if (sb.Length == longest.Size)
{
return(new AnchorInfo(this, longest.low, width, sb.ToString(), ignore));
}
// were the string segments overlapping?
if (sb.Length > longest.Size)
{
Console.Error.WriteLine("overlapping?");
return(new AnchorInfo(this, width));
}
throw new SystemException("Shouldn't happen");
}
public override AnchorInfo GetAnchorInfo(bool reverse)
{
int ptr;
int width = GetFixedWidth();
ArrayList infos = new ArrayList();
IntervalCollection segments = new IntervalCollection();
// accumulate segments
ptr = 0;
//foreach (Expression e in Expressions) {
int count = Expressions.Count;
for (int i = 0; i < count; ++i)
{
Expression e;
if (reverse)
{
e = Expressions [count - i - 1];
}
else
{
e = Expressions [i];
}
AnchorInfo info = e.GetAnchorInfo(reverse);
infos.Add(info);
if (info.IsPosition)
{
return(new AnchorInfo(this, ptr + info.Offset, width, info.Position));
}
if (info.IsSubstring)
{
segments.Add(info.GetInterval(ptr));
}
if (info.IsUnknownWidth)
{
break;
}
ptr += info.Width;
}
// normalize and find the longest segment
segments.Normalize();
Interval longest = Interval.Empty;
foreach (Interval segment in segments)
{
if (segment.Size > longest.Size)
{
longest = segment;
}
}
// now chain the substrings that made this segment together
if (!longest.IsEmpty)
{
string str = "";
ArrayList strs = new ArrayList();
bool ignore = false;
ptr = 0;
//foreach (AnchorInfo info in infos) {
for (int i = 0; i < infos.Count; ++i)
{
AnchorInfo info;
info = (AnchorInfo)infos[i];
if (info.IsSubstring && longest.Contains(info.GetInterval(ptr)))
{
//str += info.Substring; // TODO mark subexpressions
strs.Add(info.Substring);
ignore |= info.IgnoreCase;
}
if (info.IsUnknownWidth)
{
break;
}
ptr += info.Width;
}
for (int i = 0; i < strs.Count; ++i)
{
if (reverse)
{
str += strs [strs.Count - i - 1];
}
else
{
str += strs [i];
}
}
return(new AnchorInfo(this, longest.low, width, str, ignore));
}
return(new AnchorInfo(this, width));
}
public override AnchorInfo GetAnchorInfo(bool reverse)
{
int fixedWidth = base.GetFixedWidth();
ArrayList arrayList = new ArrayList();
IntervalCollection intervalCollection = new IntervalCollection();
int num = 0;
int count = base.Expressions.Count;
for (int i = 0; i < count; i++)
{
Expression expression;
if (reverse)
{
expression = base.Expressions[count - i - 1];
}
else
{
expression = base.Expressions[i];
}
AnchorInfo anchorInfo = expression.GetAnchorInfo(reverse);
arrayList.Add(anchorInfo);
if (anchorInfo.IsPosition)
{
return(new AnchorInfo(this, num + anchorInfo.Offset, fixedWidth, anchorInfo.Position));
}
if (anchorInfo.IsSubstring)
{
intervalCollection.Add(anchorInfo.GetInterval(num));
}
if (anchorInfo.IsUnknownWidth)
{
break;
}
num += anchorInfo.Width;
}
intervalCollection.Normalize();
Interval interval = Interval.Empty;
foreach (object obj in intervalCollection)
{
Interval interval2 = (Interval)obj;
if (interval2.Size > interval.Size)
{
interval = interval2;
}
}
if (interval.IsEmpty)
{
return(new AnchorInfo(this, fixedWidth));
}
bool flag = false;
int num2 = 0;
num = 0;
for (int j = 0; j < arrayList.Count; j++)
{
AnchorInfo anchorInfo2 = (AnchorInfo)arrayList[j];
if (anchorInfo2.IsSubstring && interval.Contains(anchorInfo2.GetInterval(num)))
{
flag |= anchorInfo2.IgnoreCase;
arrayList[num2++] = anchorInfo2;
}
if (anchorInfo2.IsUnknownWidth)
{
break;
}
num += anchorInfo2.Width;
}
StringBuilder stringBuilder = new StringBuilder();
for (int k = 0; k < num2; k++)
{
AnchorInfo anchorInfo3;
if (reverse)
{
anchorInfo3 = (AnchorInfo)arrayList[num2 - k - 1];
}
else
{
anchorInfo3 = (AnchorInfo)arrayList[k];
}
stringBuilder.Append(anchorInfo3.Substring);
}
if (stringBuilder.Length == interval.Size)
{
return(new AnchorInfo(this, interval.low, fixedWidth, stringBuilder.ToString(), flag));
}
if (stringBuilder.Length > interval.Size)
{
Console.Error.WriteLine("overlapping?");
return(new AnchorInfo(this, fixedWidth));
}
throw new SystemException("Shouldn't happen");
}
