public Samples LoadSamples(string name, string[] lines)
{
int numCols = 1;
int genderCol = 0;
int rarityCol = 0;
bool hasMaleNonRare = false;
bool hasFemaleNonRare = false;
int i = 0;
// Skip blank lines and comments that don't contain a comma
while (i < lines.Length && (lines[i].Trim().Length == 0 || (lines[i][0] == '#' && !lines[i].Contains(','))))
{
i++;
}
// Is there a header?
if (i < lines.Length && lines[i][0] == '#' && lines[i].Contains(','))
{
var colNames = lines[i].Split(',');
numCols = colNames.Length;
if (numCols > 3)
{
throw new Exception($"Multi-column samples '{name}' header must have 2 or 3 columns");
}
// Don't validate name of first column (can be anything)
for (int col = 1; col < numCols; col++)
{
string colName = colNames[col].Trim();
Columns colType;
try
{
colType = (Columns)Enum.Parse(typeof(Columns), colName, true);
}
catch (ArgumentException)
{
throw new Exception($"Multi-column samples '{name}' header has invalid column name '{colName}' - " +
$"must be one of: {String.Join(", ", Enum.GetNames(typeof(Columns)))}");
}
switch (colType)
{
case Columns.GENDER:
genderCol = col;
break;
case Columns.RARITY:
rarityCol = col;
break;
default:
throw new Exception($"SamplesParser missing code for column type: {colType}");
}
}
i++;
}
var samples = new Samples(name, genderCol != 0);
while (i < lines.Length)
{
string value = lines[i].Trim();
// Skip empty lines and comments
if (value.Length == 0 || value[0] == '#')
{
i++;
continue;
}
Sample.Genders gender = Sample.Genders.NEUTRAL;
int rarity = 0;
if (numCols > 1)
{
var columns = value.Split(',');
if (columns.Length > numCols)
{
throw new Exception($"Multi-column samples file '{name}' line {i + 1} " +
$"has too many columns (or embedded comma) - must match number of columns in header.");
}
string[] colData = new string[numCols];
for (int col = 0; col < numCols; col++)
{
if (col < columns.Length)
{
colData[col] = columns[col].Trim();
}
else
{
colData[col] = "";
}
}
value = colData[0];
if (value.Length == 0)
{
throw new Exception($"Multi-column samples file '{name}' line {i + 1} " +
$"value cannot be blank. Use <null> if you want a null value.");
}
if (genderCol != 0)
{
string genderStr = colData[genderCol].ToUpper();
if (genderStr.Length > 0)
{
if (genderStr.Equals("M"))
{
gender = Sample.Genders.MALE;
}
else if (genderStr.Equals("F"))
{
gender = Sample.Genders.FEMALE;
}
else
{
throw new Exception($"Multi-column samples file '{name}' line {i + 1} " +
$"has gender '{genderStr}' but expected M or F");
}
}
}
if (rarityCol != 0)
{
string rarityStr = colData[rarityCol];
if (rarityStr.Length > 0)
{
try
{
rarity = int.Parse(rarityStr);
}
catch (Exception)
{
throw new Exception($"Multi-column samples file '{name}' line {i + 1} " +
$"has non-integer rarity '{rarityStr}'");
}
if (rarity < 1 || rarity > 99)
{
throw new Exception($"Multi-column samples file '{name}' line {i + 1} " +
$"has rarity {rarity} but expected either blank or value between 1 and 99");
}
}
}
}
if ((gender == Sample.Genders.MALE || gender == Sample.Genders.NEUTRAL) && rarity == 0)
{
hasMaleNonRare = true;
}
if ((gender == Sample.Genders.FEMALE || gender == Sample.Genders.NEUTRAL) && rarity == 0)
{
hasFemaleNonRare = true;
}
samples.AddSample(new Sample(value, gender, rarity));
i++;
}
// Samples must contain at least one sample. If gendered, must be
// true for both male and female. If rarity, there must be at least
// one non-rare sample.
if (!hasMaleNonRare)
{
StringBuilder modifier = new StringBuilder();
if (genderCol != 0)
{
modifier.Append(" Male");
}
if (rarityCol != 0)
{
modifier.Append(modifier.Length == 0? " " : ", ");
modifier.Append("Non-rare (rarity left blank)");
}
throw new Exception($"Samples file '{name}' " +
$"must have at least one{modifier} sample");
}
if (genderCol != 0 && !hasFemaleNonRare)
{
StringBuilder modifier = new StringBuilder();
if (genderCol != 0)
{
modifier.Append(" Female");
}
if (rarityCol != 0)
{
modifier.Append(modifier.Length == 0 ? " " : ", ");
modifier.Append("Non-rare (rarity left blank)");
}
throw new Exception($"Multi-column samples file '{name}' " +
$"must have at least one{modifier} sample");
}
return(samples);
}
