static void HtmlAttributeEncode (TextWriter output, ICharArray value, int startIndex, int count, char quote = '"')
{
int endIndex = startIndex + count;
int index;
index = IndexOfHtmlEncodeAttributeChar (value, startIndex, endIndex, quote);
output.Write (quote);
if (index == endIndex) {
value.Write (output, startIndex, count);
output.Write (quote);
return;
}
if (index > startIndex)
value.Write (output, startIndex, index - startIndex);
while (index < endIndex) {
char c = value[index++];
int unichar;
switch (c) {
case '\t': case '\r': case '\n': case '\f': output.Write (c); break;
case '\'': output.Write (c == quote ? "'" : "'"); break;
case '"': output.Write (c == quote ? """ : "\""); break;
case '&': output.Write ("&"); break;
case '<': output.Write ("<"); break;
case '>': output.Write (">"); break;
default:
if (c < 32 || (c >= 127 && c < 160)) {
// illegal control character
break;
}
if (c > 255 && char.IsSurrogate (c)) {
if (index + 1 < endIndex && char.IsSurrogatePair (c, value[index])) {
unichar = char.ConvertToUtf32 (c, value[index]);
index++;
} else {
unichar = c;
}
} else if (c >= 160) {
// 160-255 and non-surrogates
unichar = c;
} else {
// SPACE and other printable (safe) ASCII
output.Write (c);
break;
}
output.Write (string.Format (CultureInfo.InvariantCulture, "&#{0};", unichar));
break;
}
}
output.Write (quote);
}
static void HtmlEncodeAttribute(TextWriter output, ICharArray value, int startIndex, int count, char quote = '"')
{
int endIndex = startIndex + count;
int index;
index = IndexOfHtmlEncodeAttributeChar(value, startIndex, endIndex, quote);
output.Write(quote);
if (index == endIndex)
{
value.Write(output, startIndex, count);
output.Write(quote);
return;
}
if (index > startIndex)
value.Write(output, startIndex, index - startIndex);
while (index < endIndex)
{
char c = value[index++];
int unichar, nextIndex;
switch (c)
{
case '\t': case '\r': case '\n': case '\f': output.Write(c); break;
case '\'': output.Write(c == quote ? "'" : "'"); break;
case '"': output.Write(c == quote ? """ : "\""); break;
case '&': output.Write("&"); break;
case '<': output.Write("<"); break;
case '>': output.Write(">"); break;
default:
if (c < 32 || (c >= 127 && c < 160))
{
// illegal control character
break;
}
if (c > 255 && char.IsSurrogate(c))
{
if (index + 1 < endIndex && char.IsSurrogatePair(c, value[index]))
{
unichar = char.ConvertToUtf32(c, value[index]);
index++;
}
else
{
unichar = c;
}
}
else if (c >= 160)
{
// 160-255 and non-surrogates
unichar = c;
}
else
{
// SPACE and other printable (safe) ASCII
output.Write(c);
break;
}
output.Write(string.Format(CultureInfo.InvariantCulture, "&#{0};", unichar));
break;
}
if (index >= endIndex)
break;
if ((nextIndex = IndexOfHtmlEncodeAttributeChar(value, index, endIndex, quote)) > index)
{
value.Write(output, index, nextIndex - index);
index = nextIndex;
}
}
output.Write(quote);
}
static void HtmlEncode (TextWriter output, ICharArray data, int startIndex, int count)
{
int endIndex = startIndex + count;
int index;
index = IndexOfHtmlEncodeChar (data, startIndex, endIndex);
if (index > startIndex)
data.Write (output, startIndex, index - startIndex);
while (index < endIndex) {
char c = data[index++];
int unichar;
switch (c) {
case '\t': case '\r': case '\n': case '\f': output.Write (c); break;
case '\'': output.Write ("'"); break;
case '"': output.Write ("""); break;
case '&': output.Write ("&"); break;
case '<': output.Write ("<"); break;
case '>': output.Write (">"); break;
default:
if (c < 32 || (c >= 127 && c < 160)) {
// illegal control character
break;
}
if (c > 255 && char.IsSurrogate (c)) {
if (index + 1 < endIndex && char.IsSurrogatePair (c, data[index])) {
unichar = char.ConvertToUtf32 (c, data[index]);
index++;
} else {
unichar = c;
}
} else if (c >= 160) {
// 160-255 and non-surrogates
unichar = c;
} else {
// SPACE and other printable (safe) ASCII
output.Write (c);
break;
}
output.Write (string.Format (CultureInfo.InvariantCulture, "&#{0};", unichar));
break;
}
}
}
static void HtmlEncode(TextWriter output, ICharArray data, int startIndex, int count)
{
int endIndex = startIndex + count;
int index;
index = IndexOfHtmlEncodeChar(data, startIndex, endIndex);
if (index > startIndex)
{
data.Write(output, startIndex, index - startIndex);
}
while (index < endIndex)
{
char c = data[index++];
int unichar, nextIndex;
switch (c)
{
case '\t':
case '\r':
case '\n':
case '\f': output.Write(c); break;
case '\'': output.Write("'"); break;
case '"': output.Write("""); break;
case '&': output.Write("&"); break;
case '<': output.Write("<"); break;
case '>': output.Write(">"); break;
default:
if (c < 32 || (c >= 127 && c < 160))
{
// illegal control character
break;
}
if (c > 255 && char.IsSurrogate(c))
{
if (index + 1 < endIndex && char.IsSurrogatePair(c, data[index]))
{
unichar = char.ConvertToUtf32(c, data[index]);
index++;
}
else
{
unichar = c;
}
}
else if (c >= 160)
{
// 160-255 and non-surrogates
unichar = c;
}
else
{
// SPACE and other printable (safe) ASCII
output.Write(c);
break;
}
output.Write(string.Format(CultureInfo.InvariantCulture, "&#{0};", unichar));
break;
}
if (index >= endIndex)
{
break;
}
if ((nextIndex = IndexOfHtmlEncodeChar(data, index, endIndex)) > index)
{
data.Write(output, index, nextIndex - index);
index = nextIndex;
}
}
}
static void HtmlEncodeAttribute(TextWriter output, ICharArray value, int startIndex, int count, char quote = '"')
{
int endIndex = startIndex + count;
int index;
index = IndexOfHtmlEncodeAttributeChar(value, startIndex, endIndex, quote);
output.Write(quote);
if (index == endIndex)
{
value.Write(output, startIndex, count);
output.Write(quote);
return;
}
if (index > startIndex)
{
value.Write(output, startIndex, index - startIndex);
}
while (index < endIndex)
{
char c = value[index++];
int nextIndex;
switch (c)
{
case '\'':
if (c == quote)
{
output.Write("'");
}
else
{
output.Write(c);
}
break;
case '"':
if (c == quote)
{
output.Write(""");
}
else
{
output.Write(c);
}
break;
case '&': output.Write("&"); break;
case '<': output.Write("<"); break;
case '>': output.Write(">"); break;
default:
output.Write(c);
break;
}
if (index >= endIndex)
{
break;
}
if ((nextIndex = IndexOfHtmlEncodeAttributeChar(value, index, endIndex, quote)) > index)
{
value.Write(output, index, nextIndex - index);
index = nextIndex;
}
}
output.Write(quote);
}
static void HtmlEncode(TextWriter output, ICharArray data, int startIndex, int count)
{
int endIndex = startIndex + count;
int index;
index = IndexOfHtmlEncodeChar(data, startIndex, endIndex);
if (index > startIndex)
{
data.Write(output, startIndex, index - startIndex);
}
while (index < endIndex)
{
char c = data[index++];
int unichar, nextIndex;
switch (c)
{
case '\'': output.Write("'"); break;
case '"': output.Write("""); break;
case '&': output.Write("&"); break;
case '<': output.Write("<"); break;
case '>': output.Write(">"); break;
default:
if (c >= 160 && c < 256)
{
unichar = c;
}
else if (char.IsSurrogate(c))
{
if (index + 1 < endIndex && char.IsSurrogatePair(c, data[index]))
{
unichar = char.ConvertToUtf32(c, data[index]);
index++;
}
else
{
unichar = c;
}
}
else
{
output.Write(c);
break;
}
output.Write(string.Format(CultureInfo.InvariantCulture, "&#{0};", unichar));
break;
}
if (index >= endIndex)
{
break;
}
if ((nextIndex = IndexOfHtmlEncodeChar(data, index, endIndex)) > index)
{
data.Write(output, index, nextIndex - index);
index = nextIndex;
}
}
}
