// We expect:
// whitespace | attribute name | = | attribute value
// where attribute value can be quoted
AttrInfo *HtmlToken::NextAttr()
{
// start after the last attribute found (or the beginning)
const char *curr = nextAttr;
if (!curr)
curr = s + nLen;
const char *end = s + sLen;
// parse attribute name
SkipWs(curr, end);
if (curr == end) {
NoNextAttr:
nextAttr = NULL;
return NULL;
}
attrInfo.name = curr;
SkipName(curr, end);
attrInfo.nameLen = curr - attrInfo.name;
if (0 == attrInfo.nameLen)
goto NoNextAttr;
SkipWs(curr, end);
if ((curr == end) || ('=' != *curr)) {
// attributes without values get their names as value in HTML
attrInfo.val = attrInfo.name;
attrInfo.valLen = attrInfo.nameLen;
nextAttr = curr;
return &attrInfo;
}
// parse attribute value
++curr; // skip '='
SkipWs(curr, end);
if (curr == end) {
// attribute with implicit empty value
attrInfo.val = curr;
attrInfo.valLen = 0;
} else if (('\'' == *curr) || ('\"' == *curr)) {
// attribute with quoted value
++curr;
attrInfo.val = curr;
if (!SkipUntil(curr, end, *(curr - 1)))
goto NoNextAttr;
attrInfo.valLen = curr - attrInfo.val;
++curr;
} else {
attrInfo.val = curr;
SkipNonWs(curr, end);
attrInfo.valLen = curr - attrInfo.val;
}
nextAttr = curr;
return &attrInfo;
}
void HtmlFormatter::HandleText(const char* s, size_t sLen) {
const char* curr = s;
const char* end = s + sLen;
if (preFormatted) {
// don't collapse whitespace and respect text newlines
while (curr < end) {
const char* text = curr;
currReparseIdx = curr - htmlParser->Start();
// skip to the next newline
for (; curr < end && *curr != '\n'; curr++)
;
if (curr < end && curr > text && *(curr - 1) == '\r')
curr--;
EmitTextRun(text, curr);
if ('\n' == *curr || '\r' == *curr) {
curr += '\r' == *curr ? 2 : 1;
HandleTagBr();
}
}
return;
}
// break text into runs i.e. chunks that are either all
// whitespace or all non-whitespace
while (curr < end) {
// collapse multiple, consecutive white-spaces into a single space
currReparseIdx = curr - htmlParser->Start();
bool skipped = SkipWs(curr, end);
if (skipped)
EmitElasticSpace();
const char* text = curr;
currReparseIdx = curr - htmlParser->Start();
skipped = SkipNonWs(curr, end);
if (skipped)
EmitTextRun(text, curr);
}
}
