public void Parse(
Container container,
IDocumentReader reader,
Func <string, bool> predicate,
ref List <string> buffer,
ref AttributeList attributes)
{
var match = PatternMatcher.Anchor.Match(reader.Line);
if (!match.Success)
{
throw new ArgumentException("not an anchor");
}
var id = match.Groups["id"].Value;
var reference = !string.IsNullOrEmpty(match.Groups["reference"].Value)
? match.Groups["reference"].Value
: null;
var anchor = new Anchor(id, reference);
if (attributes != null)
{
attributes.Add(anchor);
}
else
{
attributes = new AttributeList {
anchor
};
}
reader.ReadLine();
}
public override void InternalParse(Container container, IDocumentReader reader, Func <string, bool> predicate, ref List <string> buffer,
ref AttributeList attributes)
{
var match = PatternMatcher.Title.Match(reader.Line);
if (!match.Success)
{
throw new ArgumentException("not a block title");
}
var title = new Title(match.Groups["title"].Value);
if (attributes != null)
{
attributes.Add(title);
}
else
{
attributes = new AttributeList {
title
}
};
reader.ReadLine();
}
}
private static AttributeList ParseElementAttributesWithPosition(string input, int position)
{
var attributes = new AttributeList();
input = input.Trim();
var start = 0;
for (var index = 0; index < input.Length; index++)
{
var currentChar = input[index];
var last = index == input.Length - 1;
if (currentChar == '%')
{
var options = new List <string>();
var optionsStartIndex = index + 1;
for (int i = optionsStartIndex; i < input.Length; i++)
{
var lastChar = i == input.Length - 1;
if (input[i] == '%')
{
options.Add(input.Substring(optionsStartIndex, i - optionsStartIndex));
optionsStartIndex = i + 1;
}
else if (lastChar || input[i] == '#' || input[i] == '.' || input[i] == '=')
{
options.Add(lastChar
? input.Substring(optionsStartIndex, i - (optionsStartIndex - 1))
: input.Substring(optionsStartIndex, i - 1));
attributes.Add(new OptionsAttribute(options.ToArray(), false));
index = i;
start = i;
break;
}
}
}
else if (currentChar == '#')
{
var startIdIndex = index + 1;
for (var i = startIdIndex; i < input.Length; i++)
{
var lastChar = i == input.Length - 1;
if (lastChar)
{
var value = input.Substring(startIdIndex);
attributes.Add(new IdAttribute(value, false));
index = i;
start = i;
break;
}
if (input[i] == '.' || input[i] == '%' || input[i] == '=')
{
var value = input.Substring(startIdIndex, i - 1);
attributes.Add(new IdAttribute(value, false));
index = i - 1;
start = i - 1;
break;
}
}
}
else if (currentChar == '.')
{
var options = new List <string>();
var roleStartIndex = index + 1;
for (var i = roleStartIndex; i < input.Length; i++)
{
var lastChar = i == input.Length - 1;
if (input[i] == '.')
{
options.Add(input.Substring(roleStartIndex, i - roleStartIndex));
roleStartIndex = i + 1;
}
else if (lastChar || input[i] == '#' || input[i] == '%' || input[i] == '=')
{
options.Add(lastChar
? input.Substring(roleStartIndex, i - (roleStartIndex - 1))
: input.Substring(roleStartIndex, i - 1));
attributes.Add(new RoleAttribute(options, false));
index = i;
start = i;
break;
}
}
}
else if (currentChar == '=')
{
var name = input.Substring(start, index);
for (int i = index + 1; i < input.Length; i++)
{
var lastChar = i == input.Length - 1;
if (lastChar || input[i] == '#' || input[i] == '%' || input[i] == '.')
{
var singleQuoted = input[index + 1] == '\'';
var value = singleQuoted || input[index + 1] == '"'
? input.Substring(index + 2, i - (name.Length + 2))
: input.Substring(index + 1, i - name.Length);
// TODO: handle known named elements
switch (name.ToLowerInvariant())
{
case "id":
if (value.IndexOf(",", StringComparison.OrdinalIgnoreCase) > -1)
{
var valueParts = value.Split(',');
attributes.Add(new IdAttribute(valueParts[0], valueParts[1], singleQuoted));
}
else
{
attributes.Add(new IdAttribute(value, singleQuoted));
}
break;
case "role":
attributes.Add(new RoleAttribute(value, singleQuoted));
break;
case "options":
case "opts":
attributes.Add(new OptionsAttribute(value, singleQuoted));
break;
case "subs":
attributes.Add(new SubstitutionsAttribute(value));
break;
default:
attributes.Add(new NamedAttribute(name, value, singleQuoted));
break;
}
index = i;
start = i;
break;
}
}
}
else if (index == 0 && position == 0)
{
var hashIndex = input.IndexOf("#", StringComparison.OrdinalIgnoreCase);
var dotIndex = input.IndexOf(".", StringComparison.OrdinalIgnoreCase);
var percentIndex = input.IndexOf("%", StringComparison.OrdinalIgnoreCase);
if (hashIndex > -1 || dotIndex > -1 || percentIndex > -1)
{
var minIndex = new[] { hashIndex, dotIndex, percentIndex }.Where(i => i != -1).Min();
if (minIndex > 1)
{
var name = input.Substring(0, minIndex);
attributes.Add(new Attribute(name));
index = minIndex - 1;
start = minIndex - 1;
}
}
}
else if (last)
{
var name = input.Substring(start);
attributes.Add(new Attribute(name));
}
}
return(attributes);
}
private AttributeList ParseQuotedAttributes(string value)
{
if (string.IsNullOrWhiteSpace(value))
{
return(null);
}
if (value.IndexOf("{", StringComparison.CurrentCultureIgnoreCase) > -1)
{
// TODO: Handle attribute references. Do nothing for now, let them fall through
}
value = value.Trim();
if (value.IndexOf(",", StringComparison.OrdinalIgnoreCase) > -1)
{
value = value.Split(new[] { ',' }, 2)[0];
}
if (value.Length == 0)
{
return(new AttributeList());
}
if (value.StartsWith(".") || value.StartsWith("#"))
{
var segments = value.Split(new[] { '#' }, 2);
string id = null;
HashSet <string> roles = new HashSet <string>();
if (segments.Length > 1)
{
var subSegments = segments[1].Split('.');
if (subSegments.Length > 1)
{
id = subSegments[0];
for (int i = 1; i < subSegments.Length; i++)
{
roles.Add(subSegments[i]);
}
}
}
foreach (var role in segments[0].Split('.'))
{
roles.Add(role);
}
var attributes = new AttributeList();
if (id != null)
{
attributes.Add(new IdAttribute(id, false));
}
if (roles.Any())
{
attributes.Add(new RoleAttribute(roles, false));
}
return(attributes);
}
return(new AttributeList {
new RoleAttribute(value, false)
});
}
