public List <HtmlMetaTag> ParseMetaTags(string html)
{
var result = new List <HtmlMetaTag>();
if (string.IsNullOrEmpty(html))
{
return(result);
}
var matches = _metaRegex.Matches(html);
foreach (Match match in matches)
{
if (match.Success)
{
if (match.Groups.Count != 4)
{
throw new Exception("It should be...");
}
var nameCaptures = match.Groups[2].Captures;
var valueCaptures = match.Groups[3].Captures;
if (nameCaptures.Count != valueCaptures.Count)
{
throw new Exception("There should be a matching value caught for each name");
}
if (nameCaptures.Count == 0)
{
continue;
}
var metaTag = new HtmlMetaTag();
for (var index = 0; index < nameCaptures.Count; index++)
{
switch (nameCaptures[index].Value)
{
case "property":
metaTag.Property = valueCaptures[index].Value;
break;
case "name":
metaTag.Name = valueCaptures[index].Value;
break;
case "content":
metaTag.Content = valueCaptures[index].Value;
break;
}
}
//foreach (Group group in match.Groups)
//{
// if (index == 0)
// {
// index++;
// continue; // first item, we don't care about
// }
// switch (group.Value)
// {
// case "property":
// case "name":
// case "content":
// currentKey = group.Value;
// break;
// default:
// if(string.IsNullOrEmpty(currentKey))
// throw new Exception("We should have a key group value before any other value.");
// switch (currentKey)
// {
// case "property":
// metaTag.Property = group.Value;
// break;
// case "name":
// metaTag.Name = group.Value;
// break;
// case "content":
// metaTag.Content = group.Value;
// break;
// default:
// throw new Exception("Unknown key");
// }
// break;
// }
// index++;
//}
result.Add(metaTag);
}
}
return(result);
}
public List <HtmlMetaTag> ParseMetaTags(string html)
{
var result = new List <HtmlMetaTag>();
if (string.IsNullOrEmpty(html))
{
// return empty array
return(result);
}
var matches = _metaRegex.Matches(html);
// loop through matches
foreach (Match match in matches)
{
if (match.Success)
{
if (match.Groups.Count != 4)
{
throw new Exception("Invalid length.");
}
var nameCaptures = match.Groups[2].Captures;
var valueCaptures = match.Groups[3].Captures;
if (nameCaptures.Count != valueCaptures.Count)
{
// there is not a matching value for each name
throw new Exception("There should be a matching value caught for each name.");
}
if (nameCaptures.Count == 0)
{
continue;
}
var metaTag = new HtmlMetaTag();
for (var index = 0; index < nameCaptures.Count; index++)
{
switch (nameCaptures[index].Value)
{
case "property":
metaTag.Property = valueCaptures[index].Value;
break;
case "name":
metaTag.Name = valueCaptures[index].Value;
break;
case "content":
metaTag.Content = valueCaptures[index].Value;
break;
}
}
result.Add(metaTag);
}
}
return(result);
}
public List<HtmlMetaTag> ParseMetaTags(string html)
{
var result = new List<HtmlMetaTag>();
if (string.IsNullOrEmpty(html))
return result;
var matches = _metaRegex.Matches(html);
foreach (Match match in matches)
{
if (match.Success)
{
if(match.Groups.Count != 4) throw new Exception("It should be...");
var nameCaptures = match.Groups[2].Captures;
var valueCaptures = match.Groups[3].Captures;
if(nameCaptures.Count != valueCaptures.Count)
throw new Exception("There should be a matching value caught for each name");
if(nameCaptures.Count == 0) continue;
var metaTag = new HtmlMetaTag();
for (var index = 0; index < nameCaptures.Count; index++)
{
switch (nameCaptures[index].Value)
{
case "property":
metaTag.Property = valueCaptures[index].Value;
break;
case "name":
metaTag.Name = valueCaptures[index].Value;
break;
case "content":
metaTag.Content = valueCaptures[index].Value;
break;
}
}
//foreach (Group group in match.Groups)
//{
// if (index == 0)
// {
// index++;
// continue; // first item, we don't care about
// }
// switch (group.Value)
// {
// case "property":
// case "name":
// case "content":
// currentKey = group.Value;
// break;
// default:
// if(string.IsNullOrEmpty(currentKey))
// throw new Exception("We should have a key group value before any other value.");
// switch (currentKey)
// {
// case "property":
// metaTag.Property = group.Value;
// break;
// case "name":
// metaTag.Name = group.Value;
// break;
// case "content":
// metaTag.Content = group.Value;
// break;
// default:
// throw new Exception("Unknown key");
// }
// break;
// }
// index++;
//}
result.Add(metaTag);
}
}
return result;
}