public static string NextPart(ref string text)
{
StringSlice ssText = StringSlice.Prepare(text);
StringSlice ssResult = SliceNextPart(ref ssText);
text = ssText.ToString();
return(ssResult.ToString());
}
public static StringSlice Concat(StringSlice ssA, StringSlice ssB)
{
if (object.ReferenceEquals(ssA.str, ssB.str))
{
if (ssA.offset + ssA.length == ssB.offset)
{
return(StringSlice.Prepare(ssA.str, ssA.offset, ssA.length + ssB.length));
}
}
return(StringSlice.Prepare(ssA.ToString() + ssB.ToString()));
}
public StringSlice TrimStart(params char[] trimchars)
{
int end = this.offset + this.length;
int trimcharsLength = trimchars.Length;
for (int i = offset; i != end; i++)
{
for (int j = 0; ; j++)
{
if (j == trimcharsLength)
{
return(StringSlice.Prepare(this.str, i, end - i));
}
if (this.str[i] == trimchars[j])
{
break;
}
}
}
return(StringSlice.Prepare(this.str, this.length, this.length));
}
public static StringSlice SliceNextPart(ref StringSlice text)
{
StringSlice s = text.TrimStart(MyWhitespace);
if (s.Length > 0)
{
if (s[0] == '(' || s[0] == ')' || s[0] == ',' || s[0] == ';')
{
StringSlice result = s.Substring(0, 1);
text = s.Substring(1);
return(result);
}
if (s[0] == '\'')
{
bool prevsquot = false;
for (int i = 1; ; i++)
{
if (i >= s.Length)
{
if (prevsquot)
{
StringSlice result = s;
text = StringSlice.Prepare();
return(result);
}
throw new Exception("Expected terminating single quote: " + s);
}
if (s[i] == '\'')
{
if (prevsquot)
{
prevsquot = false;
}
else
{
prevsquot = true;
}
}
else if (prevsquot)
{
if (s[i] == ' ')
{
StringSlice result = s.Substring(0, i);
text = s.Substring(i + 1);
return(result);
}
else // Text directly after.
{
StringSlice result = s.Substring(0, i);
text = s.Substring(i);
return(result);
}
}
}
}
}
for (int i = 0; ; i++)
{
if (i >= s.Length)
{
StringSlice result = s;
text = StringSlice.Prepare();
return(result);
}
if (char.IsWhiteSpace(s[i]))
{
StringSlice result = s.Substring(0, i);
text = s.Substring(i + 1);
return(result);
}
if (!char.IsLetterOrDigit(s[i]) && '_' != s[i] && '.' != s[i])
{
if (i > 0)
{
StringSlice result = s.Substring(0, i);
text = s.Substring(i);
return(result);
}
{
i++; // Return this symbol.
StringSlice result = s.Substring(0, i);
text = s.Substring(i);
return(result);
}
}
}
}
public static StringSlice Concat(StringSlice ssA, string sB)
{
return(StringSlice.Prepare(ssA.ToString() + sB));
}
public StringSlice Substring(int startIndex, int length)
{
return(StringSlice.Prepare(this, startIndex, length));
}
public StringSlice Substring(int startIndex)
{
return(StringSlice.Prepare(this, startIndex, this.Length - startIndex));
}