//---------------------------------------------------------------------
public static List <ExpectedLine> ReadLines(string path)
{
List <ExpectedLine> lines = new List <ExpectedLine>();
int prevLineNum = 0;
LineReader reader = new FileLineReader(path);
string line;
while ((line = reader.ReadLine()) != null)
{
Regex pattern = new Regex(@"^(\d+):(.*)");
Match match = pattern.Match(line);
if (!match.Success)
{
throw new LineReaderException(reader,
"Line does not start with a number and colon");
}
int number = int.Parse(match.Groups[1].Value);
string text = match.Groups[2].Value;
if (number == 0)
{
throw new LineReaderException(reader,
"The expected line number must be > 0");
}
ExpectedLine expectedLine = new ExpectedLine(number, text);
if (prevLineNum > 0 && expectedLine.Number <= prevLineNum)
{
throw new LineReaderException(reader,
"Expected line number ({0}) \u2264 expected line number ({1}) on previous line",
expectedLine.Number,
prevLineNum);
}
lines.Add(expectedLine);
prevLineNum = expectedLine.Number;
}
reader.Close();
return(lines);
}
//---------------------------------------------------------------------
// Read a 2-D boolean array from a file.
// File format:
// blank lines (empty or just whitespace) & comment lines are
// ignored. Comment line has "#" as first non-whitespace
// character.
// first data line: true-chars ={CHARS}
// whitespace allowed before & after keyword "true-chars"
// all characters after = and before EOL are true chars
// 0 or more row data lines: row #? ={CHARS}
// whitespace allowed before & after keyword "row",
// # is 0 or more digits; allows for numbering for user's
// benefit, but #'s are not interpreted by program
// row's data are all chars after "=" upto EOL
// all rows must have same number of data chars
public static bool[,] Read2DimArray(string path)
{
LineReader reader = new FileLineReader(path);
reader.SkipBlankLines = true;
reader.SkipCommentLines = true;
string trueChars = null;
string line = reader.ReadLine();
if (line != null)
{
Regex pattern = new Regex(@"^\s*true-chars\s*=(.*)$");
Match match = pattern.Match(line);
if (match.Success)
{
trueChars = match.Groups[1].Value;
}
}
if (trueChars == null)
{
throw new LineReaderException(reader,
"Expected a line starting with \"true-chars =\"");
}
// Read row data-lines.
try {
Regex pattern = new Regex(@"^\s*row\s*\d*\s*=(.*)$");
List <string> rows = new List <string>();
int expectedRowLength = 0;
while ((line = reader.ReadLine()) != null)
{
Match match = pattern.Match(line);
if (!match.Success)
{
throw new LineReaderException(reader,
"Expected a line starting with \"row =\" or \"row # =\"");
}
string row = match.Groups[1].Value;
rows.Add(row);
if (rows.Count == 1)
{
expectedRowLength = row.Length;
}
else if (row.Length != expectedRowLength)
{
string pluralSuffix = expectedRowLength == 1 ? ""
: "s";
throw new LineReaderException(reader,
"Expected {0} character{1} after the \"=\"",
expectedRowLength,
pluralSuffix);
}
} // while lines from stream
return(Make2DimArray(rows.ToArray(), trueChars));
}
catch (LineReaderException) {
throw;
}
catch (System.Exception e) {
throw new LineReaderException(reader, e.Message);
}
}
