|
public AsText ( |
||
| enc | ||
| return | string | |
/// <summary>
/// Processes the <paramref name="input"/> (either of type <see cref="string"/> or <see cref="byte"/>[])
/// data and returns the filtered data in one of the formats above or <c>null</c>.
/// </summary>
public TextElement Filter(IEncodingProvider enc, TextElement input, bool closing)
{
string str = input.AsText(enc.StringEncoding);
if (pending)
{
// Both \r\n together make a pair which would consume a pending \r.
if (str.Length == 0)
{
str = "\r";
}
else if (str[0] != '\n')
{
str.Insert(0, "\r");
}
}
// Replace the pair.
str = str.Replace("\r\n", "\n");
if (str.Length != 0)
{
// Check for pending \r at the end.
pending = str[str.Length - 1] == '\r';
// Postpone the resolution of \r\n vs. \r to the next filtering if this is not the last one.
if (!closing && pending)
{
str.Remove(str.Length - 1, 1);
}
}
//
return(new TextElement(str));
}
/// <summary>
/// Processes the <paramref name="input"/> (either of type <see cref="string"/> or <see cref="byte"/>[])
/// data and returns the filtered data in one of the formats above or <c>null</c>.
/// </summary>
public TextElement Filter(IEncodingProvider enc, TextElement input, bool closing)
{
var text = input.AsText(enc.StringEncoding);
// return new TextElement(text.Replace("\n", "\r\n"));
StringBuilder sb = null; // lazily constructed string builder
int idx = 0;
int pos;
while (idx < text.Length && (pos = IndexOfStandaloneLF(text, idx)) >= 0)
{
sb ??= StringBuilderUtilities.Pool.Get();
sb.Append(text, idx, pos - idx);
sb.Append("\r\n");
//
idx = pos + 1;
}
if (sb != null)
{
sb.Append(text, idx, text.Length - idx);
text = StringBuilderUtilities.GetStringAndReturn(sb);
}
return(new TextElement(text));
}
/// <summary>
/// Processes the <paramref name="input"/> (either of type <see cref="string"/> or <see cref="byte"/>[])
/// data and returns the filtered data in one of the formats above or <c>null</c>.
/// </summary>
public TextElement Filter(IEncodingProvider enc, TextElement input, bool closing)
{
return(new TextElement(input.AsText(enc.StringEncoding).Replace("\n", "\r\n")));
}
/// <summary>
/// Processes the <paramref name="input"/> (either of type <see cref="string"/> or <see cref="byte"/>[])
/// data and returns the filtered data in one of the formats above or <c>null</c>.
/// </summary>
public TextElement Filter(Context ctx, TextElement input, bool closing)
{
return new TextElement(input.AsText(ctx.StringEncoding).Replace("\n", "\r\n"));
}
/// <summary>
/// Processes the <paramref name="input"/> (either of type <see cref="string"/> or <see cref="byte"/>[])
/// data and returns the filtered data in one of the formats above or <c>null</c>.
/// </summary>
public TextElement Filter(Context ctx, TextElement input, bool closing)
{
string str = input.AsText(ctx.StringEncoding);
if (pending)
{
// Both \r\n together make a pair which would consume a pending \r.
if (str.Length == 0) str = "\r";
else if (str[0] != '\n') str.Insert(0, "\r");
}
// Replace the pair.
str = str.Replace("\r\n", "\n");
if (str.Length != 0)
{
// Check for pending \r at the end.
pending = str[str.Length - 1] == '\r';
// Postpone the resolution of \r\n vs. \r to the next filtering if this is not the last one.
if (!closing && pending) str.Remove(str.Length - 1, 1);
}
//
return new TextElement(str);
}
/// <summary>
/// Processes the <paramref name="input"/> (either of type <see cref="string"/> or <see cref="byte"/>[])
/// data and returns the filtered data in one of the formats above or <c>null</c>.
/// </summary>
public TextElement Filter(Context ctx, TextElement input, bool closing)
{
return(new TextElement(input.AsText(ctx.StringEncoding).Replace("\n", "\r\n")));
}