public override string GetLine()
{
if (stream.Eof)
{
return(null);
}
return(stream.ReadLine(-1, null));
}
/// <summary>
///
/// </summary>
/// <param name="handle"></param>
/// <param name="length"></param>
/// <param name="delimiter"></param>
/// <param name="enclosure"></param>
/// <param name="escape_char">The escape character used in the CSV string.</param>
/// <returns>Returns an indexed array containing the fields read.
/// fgetcsv() returns NULL if an invalid handle is supplied or FALSE on other errors, including end of file.</returns>
public static PhpValue fgetcsv(PhpResource handle, int length, char delimiter = DefaultCsvDelimiter, char enclosure = DefaultCsvEnclosure, char escape_char = DefaultCsvEscape)
{
// check arguments
PhpStream stream = PhpStream.GetValid(handle, FileAccess.Read);
if (stream == null)
{
return(PhpValue.Null);
}
if (length < 0)
{
throw new ArgumentOutOfRangeException(nameof(length)); // TODO: Err //PhpException.InvalidArgument("length", LibResources.GetString("arg_negative"));
}
if (length <= 0)
{
length = -1; // no length limit
}
if (stream.Eof)
{
return(PhpValue.False);
}
return((PhpValue)ReadLineCsv(() => (stream.Eof ? null : stream.ReadLine(length, null)), delimiter, enclosure, escape_char));
}
public static PhpArray GetMetaTags(string fileName, FileOpenOptions flags)
{
PhpArray result = new PhpArray();
ScriptContext context = ScriptContext.CurrentContext;
if (getMetaTagsRegex == null)
{
getMetaTagsRegex = new Regex(@"^meta\s+name\s*=\s*(?:(\w*)|'([^']*)'|\u0022([^\u0022]*)\u0022)\s+" +
@"content\s*=\s*(?:(\w*)|'([^']*)'|\u0022([^\u0022]*)\u0022)\s*/?$",
RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
}
try
{
PhpStream stream = PhpStream.Open(fileName, "rt", PhpFile.ProcessOptions(flags));
StringBuilder tag = new StringBuilder();
bool in_brackets = false;
int in_quotes = 0; // 1 = ', 2 = "
int in_comment = 0; // 1 = <, 2 = <!, 3 = <!-, 4 = <!--, 5 = <!-- -, 6 <!-- --
while (!stream.Eof)
{
int start_index = 0;
string line = stream.ReadLine(-1, null);
for (int i = 0; i < line.Length; i++)
{
switch (line[i])
{
case '<':
{
if (!in_brackets && in_quotes == 0 && in_comment == 0)
{
in_brackets = true;
in_comment = 1;
start_index = i + 1;
}
break;
}
case '>':
{
if (in_brackets && in_quotes == 0 && in_comment != 4 && in_comment != 5)
{
in_brackets = false;
in_comment = 0;
if (start_index < i)
{
tag.Append(line, start_index, i - start_index);
}
string str = tag.ToString();
tag.Length = 0;
// did we reach the end of <head>?
if (str.Equals("/head", StringComparison.InvariantCultureIgnoreCase))
{
return(result);
}
// try to match the tag with the <meta> regex
Match match = getMetaTagsRegex.Match(str);
if (match.Success)
{
string name = null, value = null;
for (int j = 1; j <= 3; j++)
{
if (match.Groups[j].Success)
{
name = match.Groups[j].Value;
break;
}
}
if (name != null)
{
for (int j = 4; j <= 6; j++)
{
if (match.Groups[j].Success)
{
value = match.Groups[j].Value;
break;
}
}
result[name] = (value == null ? String.Empty : Core.Convert.Quote(value, context));
}
}
}
break;
}
case '\'':
{
if (in_quotes == 0)
{
in_quotes = 1;
}
else if (in_quotes == 1)
{
in_quotes = 0;
}
break;
}
case '"':
{
if (in_quotes == 0)
{
in_quotes = 2;
}
else if (in_quotes == 2)
{
in_quotes = 0;
}
break;
}
case '!': if (in_comment == 1)
{
in_comment = 2;
}
break;
case '-': if (in_comment >= 2 && in_comment < 6)
{
in_comment++;
}
break;
default:
{
// reset comment state machine
if (in_comment < 4)
{
in_comment = 0;
}
if (in_comment > 4)
{
in_comment = 4;
}
break;
}
}
}
if (in_brackets && start_index < line.Length)
{
tag.Append(line, start_index, line.Length - start_index);
}
}
}
catch (IOException)
{
return(null);
}
return(result);
}
