/// <summary>
/// Return the begin and end of the keyword
/// </summary>
public static Tuple <int, int> getKeywordPos(int pos, string line)
{
//Debug.WriteLine(string.Format("INFO: getKeyword; pos={0}; line=\"{1}\"", pos, new string(line)));
if ((pos < 0) || (pos >= line.Length))
{
return(new Tuple <int, int>(pos, pos));
}
// find the beginning of the keyword
int beginPos = 0;
for (int i1 = pos - 1; i1 >= 0; --i1)
{
char c = line[i1];
if (AsmSourceTools.isSeparatorChar(c) || Char.IsControl(c) || AsmSourceTools.isRemarkChar(c))
{
beginPos = i1 + 1;
break;
}
}
// find the end of the keyword
int endPos = line.Length;
for (int i2 = pos; i2 < line.Length; ++i2)
{
char c = line[i2];
if (AsmSourceTools.isSeparatorChar(c) || Char.IsControl(c) || AsmSourceTools.isRemarkChar(c))
{
endPos = i2;
break;
}
}
return(new Tuple <int, int>(beginPos, endPos));
}
/// <summary>
/// Returns true if the provided line only contains a remark (and no labels or code, it may have white space)
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public static bool isRemarkOnly(string line)
{
int nChars = line.Length;
for (int i = 0; i < nChars; ++i)
{
char c = line[i];
if (AsmSourceTools.isRemarkChar(c))
{
return(true);
}
else
{
if (char.IsWhiteSpace(c))
{
// OK
}
else
{
return(false);
}
}
}
// did not find a remark character; this line is not a remark.
return(false);
}
private static Tuple <bool, int, int> getLabelDefPos_Regular(string line)
{
int nChars = line.Length;
int i = 0;
// find the start of the first keyword
for (; i < nChars; ++i)
{
char c = line[i];
if (AsmSourceTools.isRemarkChar(c))
{
return(new Tuple <bool, int, int>(false, 0, 0));
}
else if (char.IsWhiteSpace(c))
{
// do nothing
}
else
{
break;
}
}
if (i >= nChars)
{
return(new Tuple <bool, int, int>(false, 0, 0));
}
int beginPos = i;
// position i points to the start of the current keyword
//AsmDudeToolsStatic.Output("getLabelEndPos: found first char of first keyword "+ line[i]+".");
for (; i < nChars; ++i)
{
char c = line[i];
if (c.Equals(':'))
{
if (i == 0) // we found an empty label
{
return(new Tuple <bool, int, int>(false, 0, 0));
}
else
{
return(new Tuple <bool, int, int>(true, beginPos, i));
}
}
else if (AsmSourceTools.isRemarkChar(c))
{
return(new Tuple <bool, int, int>(false, 0, 0));
}
else if (AsmSourceTools.isSeparatorChar(c))
{
// found another keyword: labels can only be the first keyword on a line
break;
}
}
return(new Tuple <bool, int, int>(false, 0, 0));
}
public static int getRemarkCharPosition(string line)
{
for (int i = 0; i < line.Length; ++i)
{
if (AsmSourceTools.isRemarkChar(line[i]))
{
return(i);
}
}
return(-1);
}
public static Tuple <bool, int, int> getRemarkPos(string line)
{
int nChars = line.Length;
for (int i = 0; i < nChars; ++i)
{
if (AsmSourceTools.isRemarkChar(line[i]))
{
return(new Tuple <bool, int, int>(true, i, nChars));
}
}
return(new Tuple <bool, int, int>(false, nChars, nChars));
}
/// <summary>
/// Determine whether the provided pos is in a remark in the provided line.
/// </summary>
/// <param name="triggerPoint"></param>
/// <param name="lineStart"></param>
/// <returns></returns>
public static bool isInRemark(int pos, string line)
{
// check if the line contains a remark character before the current point
int nChars = line.Length;
int startPos = (pos >= nChars) ? nChars - 1 : pos;
for (int i = startPos; i >= 0; --i)
{
if (AsmSourceTools.isRemarkChar(line[i]))
{
return(true);
}
}
return(false);
}