private int NextDelimitedSegmentText(string leftDel, string rightDel, int startAt, out string transSegmentText)
{
//Find the first occurance of a left delimiter starting from startAt
var leftDelIndex =
OriginalText.IndexOf(
leftDel,
startAt,
StringComparison.Ordinal
);
while (true)
{
//No left delimiter is found. end search for segment placeholder
if (leftDelIndex < 0)
{
transSegmentText = null;
return(-1);
}
//Find first occurance of a right delimiter starting after the left delimiter that was found
var rightDelIndex =
OriginalText.IndexOf(
rightDel,
leftDelIndex + leftDel.Length,
StringComparison.Ordinal
);
//A right delimiter is not found. End search for segment placeholder
if (rightDelIndex <= leftDelIndex)
{
transSegmentText = null;
return(-1);
}
//A right delimiter is found
var startIndex = leftDelIndex + leftDel.Length;
var endIndex = rightDelIndex - 1;
var length = endIndex - startIndex + 1;
//Read the text between the left and right delimiters
var segmentText = OriginalText.Substring(startIndex, length);
transSegmentText = segmentText;
return(leftDelIndex);
}
}
private int NextIdentifiedSegmentText(string leftDel, int startAt, out string transSegmentText)
{
//Find the first occurance of a left delimiter starting from startAt
var leftDelIndex =
OriginalText.IndexOf(
leftDel,
startAt,
StringComparison.Ordinal
);
while (true)
{
//No left delimiter is found. end search for segment placeholder
if (leftDelIndex < 0)
{
transSegmentText = null;
return(-1);
}
//Search for a legal identifier name
var lastIdntIndex = leftDelIndex + 1;
while (lastIdntIndex < OriginalText.Length)
{
var c = OriginalText[lastIdntIndex];
if (c == '_' || char.IsLetterOrDigit(c))
{
lastIdntIndex++;
}
else
{
break;
}
}
//A legal identifier name is not found. Continue search for a following left delimiter
if (lastIdntIndex == leftDelIndex + 1)
{
leftDelIndex =
OriginalText.IndexOf(
leftDel,
leftDelIndex + 1,
StringComparison.Ordinal
);
continue;
}
//A right delimiter is found
var startIndex = leftDelIndex + leftDel.Length;
var endIndex = lastIdntIndex - 1;
var length = endIndex - startIndex + 1;
//Read the identifier name
var segmentText = OriginalText.Substring(startIndex, length);
transSegmentText = segmentText;
return(leftDelIndex);
}
}