mirror of
https://github.com/telegramdesktop/tdesktop
synced 2025-08-31 22:46:10 +00:00
0.6.2 version, context menus fixed, image documents view in overlay added
This commit is contained in:
John Preston
@@ -265,14 +265,52 @@ QString textcmdStopColor() {
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return result.append(TextCommand).append(QChar(TextCommandNoColor)).append(TextCommand);
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}
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class TextParser {
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struct LinkRange {
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LinkRange() : from(0), len(0) {
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}
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const QChar *from;
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int32 len;
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};
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const QChar *skipCommand(const QChar *from, const QChar *end, bool canLink = true) {
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const QChar *result = from + 1;
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if (*from != TextCommand || result >= end) return from;
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ushort cmd = result->unicode();
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++result;
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if (result >= end) return from;
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switch (cmd) {
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case TextCommandBold:
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case TextCommandNoBold:
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case TextCommandItalic:
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case TextCommandNoItalic:
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case TextCommandUnderline:
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case TextCommandNoUnderline:
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case TextCommandNoColor:
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break;
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case TextCommandLinkIndex:
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if (result->unicode() > 0x7FFF) return from;
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++result;
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break;
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case TextCommandLinkText: {
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ushort len = result->unicode();
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if (len >= 4096 || !canLink) return from;
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result += len + 1;
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} break;
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case TextCommandColor: {
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const QChar *e = result + 4;
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if (e >= end) return from;
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for (; result < e; ++result) {
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if (result->unicode() >= 256) return from;
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}
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} break;
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case TextCommandSkipBlock:
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result += 2;
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break;
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}
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return (result < end && *result == TextCommand) ? (result + 1) : from;
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}
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class TextParser {
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public:
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static Qt::LayoutDirection stringDirection(const QString &str, int32 from, int32 to) {
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@@ -301,133 +339,6 @@ public:
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return Qt::LayoutDirectionAuto;
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}
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void prepareLinks() { // support emails and hashtags!
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if (validProtocols.empty()) {
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initLinkSets();
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}
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int32 len = src.size(), nextCmd = rich ? 0 : len;
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const QChar *srcData = src.unicode();
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for (int32 offset = 0; offset < len; ) {
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if (nextCmd <= offset) {
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for (nextCmd = offset; nextCmd < len; ++nextCmd) {
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if (*(srcData + nextCmd) == TextCommand) {
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break;
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}
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}
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}
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QRegularExpressionMatch mDomain = reDomain.match(src, offset);
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QRegularExpressionMatch mExplicitDomain = reExplicitDomain.match(src, offset);
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QRegularExpressionMatch mHashtag = reHashtag.match(src, offset);
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if (!mDomain.hasMatch() && !mExplicitDomain.hasMatch() && !mHashtag.hasMatch()) break;
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LinkRange link;
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int32 domainOffset = mDomain.hasMatch() ? mDomain.capturedStart() : INT_MAX,
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domainEnd = mDomain.hasMatch() ? mDomain.capturedEnd() : INT_MAX,
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explicitDomainOffset = mExplicitDomain.hasMatch() ? mExplicitDomain.capturedStart() : INT_MAX,
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explicitDomainEnd = mExplicitDomain.hasMatch() ? mExplicitDomain.capturedEnd() : INT_MAX,
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hashtagOffset = mHashtag.hasMatch() ? mHashtag.capturedStart() : INT_MAX,
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hashtagEnd = mHashtag.hasMatch() ? mHashtag.capturedEnd() : INT_MAX;
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if (mHashtag.hasMatch()) {
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if (!mHashtag.capturedRef(1).isEmpty()) {
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++hashtagOffset;
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}
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if (!mHashtag.capturedRef(2).isEmpty()) {
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--hashtagEnd;
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}
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}
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if (explicitDomainOffset < domainOffset) {
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domainOffset = explicitDomainOffset;
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domainEnd = explicitDomainEnd;
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mDomain = mExplicitDomain;
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}
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if (hashtagOffset < domainOffset) {
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if (hashtagOffset > nextCmd) {
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const QChar *after = skipCommand(srcData + nextCmd, srcData + len);
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if (after > srcData + nextCmd && hashtagOffset < (after - srcData)) {
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nextCmd = offset = after - srcData;
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continue;
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}
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}
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link.from = start + hashtagOffset;
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link.len = start + hashtagEnd - link.from;
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} else {
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if (domainOffset > nextCmd) {
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const QChar *after = skipCommand(srcData + nextCmd, srcData + len);
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if (after > srcData + nextCmd && domainOffset < (after - srcData)) {
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nextCmd = offset = after - srcData;
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continue;
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}
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}
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QString protocol = mDomain.captured(1).toLower();
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QString topDomain = mDomain.captured(3).toLower();
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bool isProtocolValid = protocol.isEmpty() || validProtocols.contains(hashCrc32(protocol.constData(), protocol.size() * sizeof(QChar)));
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bool isTopDomainValid = !protocol.isEmpty() || validTopDomains.contains(hashCrc32(topDomain.constData(), topDomain.size() * sizeof(QChar)));
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if (!isProtocolValid || !isTopDomainValid) {
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offset = domainEnd;
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continue;
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}
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if (protocol.isEmpty() && domainOffset > offset + 1 && *(start + domainOffset - 1) == QChar('@')) {
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QString forMailName = src.mid(offset, domainOffset - offset - 1);
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QRegularExpressionMatch mMailName = reMailName.match(forMailName);
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if (mMailName.hasMatch()) {
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int32 mailOffset = offset + mMailName.capturedStart();
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if (mailOffset < offset) {
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mailOffset = offset;
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}
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link.from = start + mailOffset;
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link.len = domainEnd - mailOffset;
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}
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}
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if (!link.from || !link.len) {
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link.from = start + domainOffset;
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QStack<const QChar*> parenth;
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const QChar *domainEnd = start + mDomain.capturedEnd(), *p = domainEnd;
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for (; p < end; ++p) {
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QChar ch(*p);
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if (chIsLinkEnd(ch)) break; // link finished
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if (chIsAlmostLinkEnd(ch)) {
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const QChar *endTest = p + 1;
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while (endTest < end && chIsAlmostLinkEnd(*endTest)) {
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++endTest;
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}
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if (endTest >= end || chIsLinkEnd(*endTest)) {
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break; // link finished at p
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}
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p = endTest;
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ch = *p;
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}
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if (ch == '(' || ch == '[' || ch == '{' || ch == '<') {
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parenth.push(p);
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} else if (ch == ')' || ch == ']' || ch == '}' || ch == '>') {
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if (parenth.isEmpty()) break;
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const QChar *q = parenth.pop(), open(*q);
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if ((ch == ')' && open != '(') || (ch == ']' && open != '[') || (ch == '}' && open != '{') || (ch == '>' && open != '<')) {
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p = q;
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break;
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}
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}
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}
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if (p > domainEnd) { // check, that domain ended
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if (domainEnd->unicode() != '/') {
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offset = domainEnd - start;
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continue;
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}
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}
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link.len = p - link.from;
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}
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}
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lnkRanges.push_back(link);
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offset = (link.from - start) + link.len;
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}
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}
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void blockCreated() {
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sumWidth += _t->_blocks.back()->f_width();
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if (sumWidth.floor().toInt() > stopAfterWidth) {
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@@ -500,53 +411,8 @@ public:
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return true;
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}
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const QChar *skipCommand(const QChar *from, const QChar *end) {
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const QChar *result = from + 1;
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if (*from != TextCommand || result >= end) return from;
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ushort cmd = result->unicode();
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++result;
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if (result >= end) return from;
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switch (cmd) {
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case TextCommandBold:
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case TextCommandNoBold:
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case TextCommandItalic:
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case TextCommandNoItalic:
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case TextCommandUnderline:
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case TextCommandNoUnderline:
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case TextCommandNoColor:
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break;
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case TextCommandLinkIndex:
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if (result->unicode() > 0x7FFF) return from;
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++result;
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break;
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case TextCommandLinkText: {
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ushort len = result->unicode();
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if (len >= 4096 || links.size() >= 0x7FFF) return from;
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result += len + 1;
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} break;
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case TextCommandColor: {
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const QChar *e = result + 4;
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if (e >= end) return from;
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for (; result < e; ++result) {
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if (result->unicode() >= 256) return from;
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}
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} break;
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case TextCommandSkipBlock:
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result += 2;
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break;
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}
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return (result < end && *result == TextCommand) ? (result + 1) : from;
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}
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bool readCommand() {
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const QChar *afterCmd = skipCommand(ptr, end);
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const QChar *afterCmd = skipCommand(ptr, end, links.size() < 0x7FFF);
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if (afterCmd == ptr) {
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return false;
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}
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@@ -724,7 +590,7 @@ public:
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end = start + src.size();
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if (options.flags & TextParseLinks) {
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prepareLinks();
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lnkRanges = textParseLinks(src, rich);
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}
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while (start != end && chIsTrimmed(*start, rich)) {
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@@ -793,7 +659,6 @@ private:
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const QChar *start, *end, *ptr;
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bool rich, multiline;
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typedef QVector<LinkRange> LinkRanges;
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LinkRanges lnkRanges;
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const LinkRange *waitingLink, *linksEnd;
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@@ -4102,3 +3967,137 @@ QString textAccentFold(const QString &text) {
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}
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return (i < result.size()) ? result.mid(0, i) : result;
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}
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QString textSearchKey(const QString &text) {
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return textAccentFold(text.trimmed().toLower());
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}
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LinkRanges textParseLinks(const QString &text, bool rich) {
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LinkRanges lnkRanges;
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if (validProtocols.empty()) {
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initLinkSets();
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}
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int32 len = text.size(), nextCmd = rich ? 0 : len;
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const QChar *start = text.unicode(), *end = start + text.size();
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for (int32 offset = 0, matchOffset = offset; offset < len;) {
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if (nextCmd <= offset) {
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for (nextCmd = offset; nextCmd < len; ++nextCmd) {
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if (*(start + nextCmd) == TextCommand) {
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break;
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}
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}
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}
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QRegularExpressionMatch mDomain = reDomain.match(text, matchOffset);
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QRegularExpressionMatch mExplicitDomain = reExplicitDomain.match(text, matchOffset);
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QRegularExpressionMatch mHashtag = reHashtag.match(text, matchOffset);
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if (!mDomain.hasMatch() && !mExplicitDomain.hasMatch() && !mHashtag.hasMatch()) break;
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LinkRange link;
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int32 domainOffset = mDomain.hasMatch() ? mDomain.capturedStart() : INT_MAX,
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domainEnd = mDomain.hasMatch() ? mDomain.capturedEnd() : INT_MAX,
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explicitDomainOffset = mExplicitDomain.hasMatch() ? mExplicitDomain.capturedStart() : INT_MAX,
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explicitDomainEnd = mExplicitDomain.hasMatch() ? mExplicitDomain.capturedEnd() : INT_MAX,
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hashtagOffset = mHashtag.hasMatch() ? mHashtag.capturedStart() : INT_MAX,
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hashtagEnd = mHashtag.hasMatch() ? mHashtag.capturedEnd() : INT_MAX;
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if (mHashtag.hasMatch()) {
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if (!mHashtag.capturedRef(1).isEmpty()) {
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++hashtagOffset;
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}
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if (!mHashtag.capturedRef(2).isEmpty()) {
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--hashtagEnd;
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}
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}
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if (explicitDomainOffset < domainOffset) {
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domainOffset = explicitDomainOffset;
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domainEnd = explicitDomainEnd;
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mDomain = mExplicitDomain;
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}
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if (hashtagOffset < domainOffset) {
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if (hashtagOffset > nextCmd) {
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const QChar *after = skipCommand(start + nextCmd, start + len);
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if (after > start + nextCmd && hashtagOffset < (after - start)) {
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nextCmd = offset = matchOffset = after - start;
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continue;
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}
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}
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link.from = start + hashtagOffset;
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link.len = start + hashtagEnd - link.from;
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} else {
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if (domainOffset > nextCmd) {
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const QChar *after = skipCommand(start + nextCmd, start + len);
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if (after > start + nextCmd && domainOffset < (after - start)) {
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nextCmd = offset = matchOffset = after - start;
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continue;
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}
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}
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QString protocol = mDomain.captured(1).toLower();
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QString topDomain = mDomain.captured(3).toLower();
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bool isProtocolValid = protocol.isEmpty() || validProtocols.contains(hashCrc32(protocol.constData(), protocol.size() * sizeof(QChar)));
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bool isTopDomainValid = !protocol.isEmpty() || validTopDomains.contains(hashCrc32(topDomain.constData(), topDomain.size() * sizeof(QChar)));
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if (protocol.isEmpty() && domainOffset > offset + 1 && *(start + domainOffset - 1) == QChar('@')) {
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QString forMailName = text.mid(offset, domainOffset - offset - 1);
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QRegularExpressionMatch mMailName = reMailName.match(forMailName);
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if (mMailName.hasMatch()) {
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int32 mailOffset = offset + mMailName.capturedStart();
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if (mailOffset < offset) {
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mailOffset = offset;
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}
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link.from = start + mailOffset;
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link.len = domainEnd - mailOffset;
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}
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}
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if (!link.from || !link.len) {
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if (!isProtocolValid || !isTopDomainValid) {
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matchOffset = domainEnd;
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continue;
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}
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link.from = start + domainOffset;
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QStack<const QChar*> parenth;
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const QChar *domainEnd = start + mDomain.capturedEnd(), *p = domainEnd;
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for (; p < end; ++p) {
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QChar ch(*p);
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if (chIsLinkEnd(ch)) break; // link finished
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if (chIsAlmostLinkEnd(ch)) {
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const QChar *endTest = p + 1;
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while (endTest < end && chIsAlmostLinkEnd(*endTest)) {
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++endTest;
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}
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if (endTest >= end || chIsLinkEnd(*endTest)) {
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break; // link finished at p
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}
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p = endTest;
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ch = *p;
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}
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if (ch == '(' || ch == '[' || ch == '{' || ch == '<') {
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parenth.push(p);
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} else if (ch == ')' || ch == ']' || ch == '}' || ch == '>') {
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if (parenth.isEmpty()) break;
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const QChar *q = parenth.pop(), open(*q);
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if ((ch == ')' && open != '(') || (ch == ']' && open != '[') || (ch == '}' && open != '{') || (ch == '>' && open != '<')) {
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p = q;
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break;
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}
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}
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}
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if (p > domainEnd) { // check, that domain ended
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if (domainEnd->unicode() != '/') {
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matchOffset = domainEnd - start;
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continue;
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}
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}
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link.len = p - link.from;
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}
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}
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lnkRanges.push_back(link);
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offset = matchOffset = (link.from - start) + link.len;
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}
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return lnkRanges;
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}
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