static void DoJsonArray(JsonTextBuffer avb, ListTerm t, bool first)
{
if (t.IsEmptyList)
{
return;
}
DoJsonValue(avb, null, t.Arg(0), first);
DoJsonArray(avb, (ListTerm)t.Arg(1), false);
}
static void DoJsonArray(XmlTextWriter xwr, string [] attributes, string label, ListTerm t, ref bool contentWritten)
{
if (t.IsEmptyList)
{
return;
}
DoJsonValue(xwr, attributes, label, t.Arg(0), ref contentWritten);
DoJsonArray(xwr, attributes, label, (ListTerm)t.Arg(1), ref contentWritten);
}
public static string Format(ListTerm lt)
{
if (!lt.IsProperList || lt.ProperLength != 2)
{
IO.Error("Format list must be a proper list of length 2");
return(null);
}
BaseTerm fstring = lt.Arg(0);
BaseTerm args = lt.Arg(1).Arg(0);
return(Format(fstring, args));
}
public static BaseTerm FindRegexMatches(
OperatorTable opTable, string source, string matchPattern, string[] options)
{
Regex re = null;
RegexOptions reOptions = RegexOptions.None;
if (options != null)
{
foreach (string o in options)
{
switch (o.ToLower())
{
case "ignorecase":
reOptions |= RegexOptions.IgnoreCase;
break;
case "multiline":
reOptions |= RegexOptions.Multiline;
break;
case "singleline":
reOptions |= RegexOptions.Singleline;
break;
case "explicitcapture":
reOptions |= RegexOptions.ExplicitCapture;
break;
case "cultureinvariant":
reOptions |= RegexOptions.CultureInvariant;
break;
default:
IO.Error("match_regex -- unsupported option '{0}'", o);
break;
}
}
;
}
try
{
re = new Regex(matchPattern, reOptions); //, RegexOptions.Multiline);
}
catch (Exception x)
{
IO.Error("Error in regular expression '{0}'\r\nMessage: {1}", matchPattern, x.Message);
}
Match m = re.Match(source);
if (!m.Success)
{
return(null);
}
int[] gnums = re.GetGroupNumbers();
BaseTerm groups = new ListTerm();
while (m.Success)
{
for (int i = 1; i < gnums.Length; i++) // start at group 1 (0 is the fully captured match string)
{
Group g = m.Groups[gnums[i]];
BaseTerm captures = new ListTerm();
string groupId = re.GetGroupNames()[i];
int groupNo;
BaseTerm groupIdTerm;
foreach (Capture c in g.Captures)
{
captures = ((ListTerm)captures).AppendElement(new StringTerm(c.ToString()));
}
if (int.TryParse(groupId, out groupNo))
{
groupIdTerm = new DecimalTerm(groupNo);
}
else
{
groupIdTerm = new StringTerm(re.GetGroupNames()[i]);
}
groups = ((ListTerm)groups).AppendElement(
new OperatorTerm(opTable, ":", groupIdTerm, captures));
}
m = m.NextMatch();
}
if (((ListTerm)groups).ProperLength == 1)
{
groups = groups.Arg(0); // groups is <groupname>:[<captures>]
if (groups.Arg(0) is DecimalTerm)
{
groups = groups.Arg(1); // anonymous group, just return the list of captures
}
}
return(groups);
}
