HTMLInterchange.cpp [plain text]
#include "config.h"
#include "HTMLInterchange.h"
#include "CharacterNames.h"
#include "Document.h"
#include "Text.h"
#include "TextIterator.h"
namespace WebCore {
namespace {
DeprecatedString convertedSpaceString()
{
static DeprecatedString convertedSpaceString;
if (convertedSpaceString.length() == 0) {
convertedSpaceString = "<span class=\"";
convertedSpaceString += AppleConvertedSpace;
convertedSpaceString += "\">";
convertedSpaceString += DeprecatedChar(noBreakSpace);
convertedSpaceString += "</span>";
}
return convertedSpaceString;
}
}
DeprecatedString convertHTMLTextToInterchangeFormat(const DeprecatedString& in, const Text* node)
{
if (node->renderer() && node->renderer()->style()->preserveNewline())
return in;
DeprecatedString s;
unsigned int i = 0;
unsigned int consumed = 0;
while (i < in.length()) {
consumed = 1;
if (isCollapsibleWhitespace(in[i].unicode())) {
unsigned int j = i + 1;
while (j < in.length() && isCollapsibleWhitespace(in[j].unicode()))
j++;
unsigned int count = j - i;
consumed = count;
while (count) {
unsigned int add = count % 3;
switch (add) {
case 0:
s += convertedSpaceString();
s += ' ';
s += convertedSpaceString();
add = 3;
break;
case 1:
if (i == 0 || i + 1 == in.length()) s += convertedSpaceString();
else
s += ' ';
break;
case 2:
if (i == 0) {
s += convertedSpaceString();
s += ' ';
}
else if (i + 2 == in.length()) {
s += convertedSpaceString();
s += convertedSpaceString();
}
else {
s += convertedSpaceString();
s += ' ';
}
break;
}
count -= add;
}
}
else {
s += in[i];
}
i += consumed;
}
return s;
}
}