| Commit message (Collapse) | Author | Age | Files | Lines |
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A literal backslash needs to be doubled so that the parser doesn't treat
it as escaping the following character when the markdown is read back.
In ca4774131b9b8ee40b4d7f5c1ba296af4700207f we tried to limit it to
backslashes that were not already escaped. In case someone really needs
a longer series of backslashes, it's more correct to escape them all;
but this comes with the risk that if they do not get un-escaped by the
markdown parser in some scenario, repeated round-trip saving and loading
could multiply them excessively. So we also add a lot of tests to try
to verify that this is safe.
Task-number: QTBUG-96051
Fixes: QTBUG-122083
Pick-to: 6.7
Change-Id: I64f610d24e99f67ebdc30d5ab5c6cf3985aec5ec
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
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There is logging in QTextMarkdownImporter::import(); in case something
goes wrong, it's useful to compare the size during reading and writing.
Amends bffddc6a993c4b6b64922e8d327bdf32e0d4975a
Task-number: QTBUG-120722
Change-Id: I5f60305ca84d48f91bbb18e9c10ea4010005b356
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
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Try to avoid writing anything that the parser would misinterpret.
Escape pre-existing backslashes, but not those that are already escaped.
Optimize maybeEscapeFirstChar() slightly and apply it to every line
of output (except in code blocks), not only to new lines created by
word-wrapping.
Since it would be hard to do this without using regular expressions,
the markdown writer feature now depends on the regex feature.
Fixes: QTBUG-96051
Fixes: QTBUG-122083
Pick-to: 6.7
Change-Id: I8d95366501fd31441829081c668f11a3a3a23fe2
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
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We have explicit QFont properties, and QTextFormat::setProperty().
Setting FontFixedPitch doesn't necessarily affect the view (QTextEdit or
Qt Quick Text/TextEdit); and setting the font to the one we get from
QFontDatabase::systemFont(QFontDatabase::FixedFont) is also unreliable,
because the "monospace" fallback might actually be proportional.
QTextMarkdownWriter checks for both to decide whether to use backticks;
so markdown writing works if an editor UI makes the format monospace
both ways to be safe. But in the opposite case that the main font is
actually a monospace font, it's always been broken.
The rest of the QTextCharFormat properties are generally working, to
the extent that they are applicable to Markdown. But we lacked explicit
test coverage: so far we were just reading Markdown or HTML and writing
Markdown to test the writer.
Also amend an old comment about writing underlines: writing was always
possible, and since f5c7799f59ba53c634906b11e2135190093bf87b reading is
supported too. So the underline support is symmetric (except that we
don't heed the QTextDocument::MarkdownFeatures argument to the writer
ctor: we probably should do that some day).
Pick-to: 6.7
Task-number: QTBUG-54623
Task-number: QTBUG-75648
Task-number: QTBUG-75649
Task-number: QTBUG-79900
Task-number: QTBUG-99676
Task-number: QTBUG-103484
Change-Id: Iacb4ed0ea59030570702d4eadfdadfad872065c6
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
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If it wraps, the text on the next line is no longer part of the heading.
Fixes: QTBUG-106526
Change-Id: I8015c948d875c6944422ef3439e3128af5b2a2e2
Pick-to: 6.5 6.6 6.7
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
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If we need to word-wrap a paragraph after a long formatted span,
write any ending markers before the newline (amends
280d679c556ab8ead4748a627d7cd4c1950027fb ).
Break before a fragment if the whole thing is past the column limit;
in that case, write out any ending format markers before the newline.
And now we have test coverage: prepend characters one-at-a-time to a
line that already has a two-word formatted span at the end, and watch
it successively break after the span, in the middle, and then before,
while never putting a newline before the ending markers or failing to
write them.
Fixes: QTBUG-116927
Change-Id: I140e10d19a491cb599bf7ecf8514af866b5383f3
Pick-to: 6.5 6.6 6.7
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
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But we do not yet handle a blockquote in a list item. Presumably
that's less common anyway.
We now also continue block-quote prefixes onto blank lines
within a block quote, which looks more normal.
Pick-to: 6.7
Task-number: QTBUG-104997
Change-Id: I2b5642cf3a0c81a94444a33f026a02ad53e7e6bb
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
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It's increasingly common for YAML to be used as metadata in front of
markdown documents. md4c does not handle this, so we need to remove
it ahead of time, lest md4c misinterpret it as heading text or so.
The --- fences are expected to be consistent regardless of the format of
what's between them, and the yaml (or whatever) parser does not need to
see them. So we remove them while reading, and QTextMarkdownWriter
writes them around the front matter if there is any.
If your application needs to parse this "front matter", just call
qtd->metaInformation(QTextDocument::FrontMatter).toUtf8() and feed that
to some parser that you've linked in, such as yaml-cpp.
Since YAML is used with GitHub Docs, we consider this feature to be part
of the GitHub dialect:
https://docs.github.com/en/contributing/writing-for-github-docs/using-yaml-frontmatter
[ChangeLog][QtGui][Text] Markdown "front matter" (usually YAML) is now
extracted during parsing (GitHub dialect) and can be retrieved from
QTextDocument::metaInformation(FrontMatter). QTextMarkdownWriter also
writes front matter (if any) to the output.
Fixes: QTBUG-120722
Change-Id: I220ddcd2b94c99453853643516ca7a36bb2bcd6f
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
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This is useful for a lot of applications that render text coming from
sources which already support arbitrarily numbered lists (like chat
applications for example). Application-side workarounds usually have
significant overhead; and this feature has been requested multiple times.
It should be possible to both read and write HTML with the <ol start="x">
attribute, and read and write Markdown with arbitrary numbers for the
first item in a list.
[ChangeLog][QtGui] QTextList now supports specifying a start index using
the new QTextList::{setStart, start} functions. The HTML start attribute
on ordered lists in rich text documents is now parsed and used when
rendering a text list. Non-negative indices in markdown lists are now
also parsed and written properly. This allows starting a list with a
different number than 1.
Fixes: QTBUG-30407
Fixes: QTBUG-65384
Task-number: QTBUG-107562
Change-Id: Ib35b9378d9134ffedaa2d92f728b0984793aa7c1
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
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It causes clashes in CMake Unity (Jumbo) builds.
Pick-to: 6.5
Task-number: QTBUG-109394
Initial-patch-by: Amir Masoud Abdol <amir.abdol@qt.io>
Change-Id: I7d8c7a15dd8d3b7198b5ac1924a0f2bcf4415e06
Reviewed-by: Amir Masoud Abdol <amir.abdol@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
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This is semantic patch using ClangTidyTransformator:
auto QtContainerClass = expr(hasType(namedDecl(hasAnyName(<classes>)))).bind(o)
makeRule(cxxMemberCallExpr(on(QtContainerClass),
callee(cxxMethodDecl(hasAnyName({"count", "length"),
parameterCountIs(0))))),
changeTo(cat(access(o, cat("size"), "()"))),
cat("use 'size()' instead of 'count()/length()'"))
a.k.a qt-port-to-std-compatible-api with config Scope: 'Container'.
<classes> are:
// sequential:
"QByteArray",
"QList",
"QQueue",
"QStack",
"QString",
"QVarLengthArray",
"QVector",
// associative:
"QHash",
"QMultiHash",
"QMap",
"QMultiMap",
"QSet",
// Qt has no QMultiSet
Change-Id: Ibe8837be96e8d30d1846881ecd65180c1bc459af
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
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The inner loop would go out of bounds whenever it tried to find the end
of a run of spaces in a fragment that contained only spaces.
Fixes: QTBUG-104999
Change-Id: I5dda03b31194fff12f6052c458a0eb85d0be5c2b
Pick-to: 6.2 6.3 6.4 6.4.0
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
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When a markdown document contains a "naked" URL, or an angle-bracketed
<URL>, md4c recognizes it, and we set the AnchorHref charfmt property.
There's no need to expand it into the [text](url) form if the text is
the same as the url, there is no tooltip, and the url is valid.
QTextMarkdownWriter now writes a CommonMark "autolink" in that case:
https://spec.commonmark.org/0.30/#autolinks
[ChangeLog][QtGui][Text] QTextMarkdownWriter now writes an autolink
whenever a hyperlink has no custom text and no tooltip, including
when the document was parsed from Markdown containing a naked URL.
Pick-to: 6.4
Fixes: QTBUG-94713
Change-Id: I432db8499c62e1e0b1e913bfd8ef2147e3c2bb2a
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
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This caused unnecessary empty <pre> blocks when converting markdown to
HTML, made code blocks too large using QSyntaxHighlighter to highlight
the whole block, and caused assymmetry when rewriting markdown.
Pick-to: 6.3
Fixes: QTBUG-101031
Change-Id: I08016577ccb92edb4afae31d7df3259cb011d5c8
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
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The HTML parser calls QTextBlockFormat::setNonBreakableLines(true) when
it sees a <pre> tag; so for symmetry, the markdown reader now does the
same when it sees a fenced code block, and the markdown writer honors
the nonBreakableLines property by writing a fenced code block. This
preserves the meaning better when reading HTML and writing markdown or
vice-versa, without modifying HTML reading or writing code.
Added a test tst_QTextMarkdownImporter::fencedCodeBlocks() which
unfortunately also highlights a known bug in the markdown reader: each
fenced code block ends with an extra empty block. That can be fixed
separately.
tst_QTextMarkdownWriter::fromHtml(preformats with embedded backticks)
that we re-enabled in 1abaf9d5d6ea9c6554362e851903ddd214a6f659 was not a
very useful test: ``` with a space and some words but no newline is not
a fence: it's just like a `monospace` span. We have had trouble with
those in CI because of missing monospace fonts, or inconsistency when
a supposedly mono font's QFontInfo::fixedPitch() returns false.
So just test proper <pre>/fence conversion for now.
Pick-to: 6.3
Fixes: QTBUG-100515
Fixes: QTBUG-100981
Task-number: QTBUG-101031
Change-Id: I88f0ede0810d8a9480b30eb0cd780e1af67cc5f2
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
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Replace the current license disclaimer in files by
a SPDX-License-Identifier.
Files that have to be modified by hand are modified.
License files are organized under LICENSES directory.
Task-number: QTBUG-67283
Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
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Task-number: QTBUG-98434
Change-Id: I98c27030c783f968cbf38dc966ce486dc366b302
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
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Task-number: QTBUG-98434
Change-Id: Idcb71c1d27125333a53b6bdd3e1af0d4c66617fa
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
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Required for porting away from QLatin1Char/QLatin1String in scope of
QTBUG-98434.
Change-Id: I308d86cefcbfd126929b68f9a853d420840c965f
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
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If the editing app (like qtbase/examples/widgets/richtext/textedit)
has controls only for setting a specific font, and someone uses it to
write markdown "from scratch", then we need to detect that they chose
Courier or some other fixed-pitch font, and write the backticks,
because Markdown has no syntax for selecting a specific font family.
If the user loads markdown into such an application, the font
is set to QFontDatabase::systemFont(QFontDatabase::FixedFont).
Round-trip editing was already working, as long as such a font exists.
QTextCharFormat::setFont() calls setFontFixedPitch(font.fixedPitch()),
but for the chosen "mono" font, font.fixedPitch() can be false.
For semantic completeness and separation of concerns, we now
set fontFixedPitch explicitly if a `backtick` span is encountered.
As a followup to f1e60de66540b198d696253ab5148de4fcbff319 this
should get its autotest passing reliably.
Fixes: QTBUG-99676
Pick-to: 6.3 6.2 5.15
Change-Id: I4987a1f0f819f82ec64546bdc3ef53e7d29933de
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
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- Under a list item, we've been indenting code blocks:
```
int main() ...
```
- But it's also ok *not* to indent (and github handles that better):
```
int main() ...
```
- There was a bug that when the code is not indented, the fence would be
indented anyway:
```
int main() ...
```
and that was not OK, neither for md4c nor for github.
Now with this change, either way is rewritable: you can read markdown
into QTextDocument, make small edits and write it back out again, with
the indentation being preserved (the code block is either part of the
list item, thus indented, or else it's outside the list completely).
Pick-to: 6.2
Task-number: QTBUG-92445
Change-Id: I5f51899e28ba9f09b88a71e640d9283416cce171
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
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Task-number: QTBUG-84469
Change-Id: I366e845249203d80d640355a7780ac2f91a762f1
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
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Conversions from non-char-types to QChar are going to be deprecated.
Use QChar::fromUcs2(), fromUcs4(), QLatin1Char(), or convert the
constructor argument to char16_t.
Change-Id: Ib45ebd5560aa3a2bc460037ab09773607485c6e2
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
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The CommonMark spec shows that it's not necessary to have a space
between the code fence and the language string:
https://spec.commonmark.org/0.29/#example-112
This also avoids a needless trailing space after a code fence that
does not include a language string.
Change-Id: I2addd38a196045a7442150760b73269bfe4ffb22
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
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The end of a code block nested in a list item is now detected;
and if the text of the list item continues after the code block,
it continues to be indented.
Code blocks should never be word-wrapped.
Fixes: QTBUG-80603
Change-Id: I4427f8b1d4807d819616f5cb971e2d006170d9be
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
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The "title" in markdown is the tooltip, not the name attribute of
a link. Also, tell the char format that it's an anchor.
Change-Id: I2978848ec6705fe16376d6fe17f31007cce4b801
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
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You can save a "skeletal" document with list items to fill in later,
the same as you can do in HTML or ODF format. Reading them back via
QTextDocument::fromMarkdown() isn't always perfect though.
Fixes: QTBUG-79217
Change-Id: Iacdb3e6792250ebdead05f314c9e3d00546eeb9f
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
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This came up during API review.
Change-Id: I9198e1eb96db0c21e46a226a032919bb62d3ca66
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
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Change-Id: I1235bed395a47438bc18571e2331a3432e274dec
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
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MD4C now makes it possible to detect indented and fenced code blocks:
https://github.com/mity/md4c/issues/81
Fenced code blocks have the advantages of being easier to write by hand,
and having an "info string" following the opening fence, which is commonly
used to declare the language.
Also, the HTML parser now recognizes tags of the form
<pre class="language-foo">
which is one convention for declaring the programming language
(as opposed to human language, for which the lang attribute would be used):
https://stackoverflow.com/questions/5134242/semantics-standards-and-using-the-lang-attribute-for-source-code-in-markup
So it's possible to read HTML and write markdown without losing this information.
It's also possible to read markdown with any type of code block:
fenced with ``` or ~~~, or indented, and rewrite it the same way.
Change-Id: I33c2bf7d7b66c8f3ba5bdd41ab32572f09349c47
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
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It's a required CommonMark feature:
https://spec.commonmark.org/0.29/#images
and alt text is also required in HTML:
https://www.w3.org/wiki/Html/Elements/img#Requirements_for_providing_text_to_act_as_an_alternative_for_images
Now we are able to read these attributes from either html or markdown
and rewrite either an html or markdown document that preserves them.
This patch does not add viewing or editing support in QTextEdit etc.
Change-Id: I51307389f8f9fc00809808390e583a83111a7b33
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
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If any non-breakable content (such as a link) already went past
80 columns, or if a word ended on column 80, it didn't wrap the rest of
the paragraph following.
Change-Id: I27dc0474f18892c34ee2514ea6d5070dae29424f
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
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Can now detect nested quotes and code blocks inside quotes, and can
rewrite the markdown too.
QTextHtmlParser sets hard-coded left and right margins, so we need to do
the same to be able to read HTML and write markdown, or vice-versa,
and to ensure that all views (QTextEdit, QTextBrowser, QML Text etc.)
will render it with margins. But now we add a semantic memory too:
BlockQuoteLevel is similar to HeadingLevel, which was added in
310daae53926628f80c08e4415b94b90ad525c8f to preserve H1..H6 heading
levels, because detecting it via font size didn't make sense in
QTextMarkdownWriter. Likewise detecting quote level by its margins
didn't make sense; markdown supports nesting quotes; and indenting
nested quotes via 40 pixels may be a bit too much, so we should consider
it subject to change (and perhaps be able to change it via CSS later on).
Since we're adding BlockQuoteLevel and depending on it in QTextMarkdownWriter,
it's necessary to set it in QTextHtmlParser to enable HTML->markdown
conversion. (But so far, nested blockquotes in HTML are not supported.)
Quotes (and nested quotes) can contain indented code blocks, but it seems
the reverse is not true (according to https://spec.commonmark.org/0.29/#example-201 )
Quotes can contain fenced code blocks.
Quotes can contain lists. Nested lists can be interrupted with
nested code blocks and nested quotes.
So far the writer assumes all code blocks are the indented type.
It will be necessary to add another attribute to remember whether the
code block is indented or fenced (assuming that's necessary).
Fenced code blocks would work better for writing inside block quotes
and list items because the fence is less ambiguous than the indent.
Postponing cursor->insertBlock() as long as possible helps with nesting.
cursor->insertBlock() needs to be done "just in time" before inserting
text that will go in the block. The block and char formats aren't
necessarily known until that time. When a nested block (such as a
nested quote) ends, the context reverts to the previous block format,
which then needs to be re-determined and set before we insert text
into the outer block; but if no text will be inserted, no new block
is necessary. But we can't use QTextBlockFormat itself as storage,
because for some reason bullets become very "sticky" and it becomes
impossible to have plain continuation paragraphs inside list items:
they all get bullets. Somehow QTextBlockFormat remembers, if we copy it.
But we can create a new one each time and it's OK.
Change-Id: Icd0529eb90d2b6a3cb57f0104bf78a7be81ede52
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
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- QObjects are always passed by pointer not by reference, by convention
- writeTable() takes QAIM rather than QATM to make testing via
QStandardItemModel possible in the future
Change-Id: I5bc6b8cd9709da4fb5d57d98fa22e0cb34360944
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
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Change-Id: I14d4bcfe1a6c3bd87d1328f0abb81b2138545e4e
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
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Importer fixes:
- the first list item after a heading doesn't keep the heading font
- the first text fragment after a bullet is the bullet text, not a
separate paragraph
- detect continuation lines and append to the list item text
- detect continuation paragraphs and indent them properly
- indent nested list items properly
- add a test for QTextMarkdownImporter
Writer fixes:
- after bullet items, continuation lines and paragraphs are indented
- indentation of continuations isn't affected by checkboxes
- add extra newlines between list items in "loose" lists
- avoid writing triple newlines
- enhance the test for QTextMarkdownWriter
Change-Id: Ib1dda514832f6dc0cdad177aa9a423a7038ac8c6
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
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Change-Id: I128769cb78abb8168f0bf29cef8c693073793ced
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
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This provides the ability to write live data from a table to Markdown,
which can be useful to load it into a text document or a wiki.
But so far QTextMarkdownWriter is still a private class, intended to be
used experimentally from QtQuick and perhaps later exposed in other ways.
Change-Id: I0de4673987e4172178604e49b5a024a05d4486ba
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
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A QTextDocument can now be written out in Markdown format.
- Add the QTextMarkdownWriter as a private class for now
- Add QTextDocument::toMarkdown()
- QTextDocumentWriter uses QTextMarkdownWriter if setFormat("markdown")
is called or if the file suffix is .md or .mkd
- Add QTextEdit::toMarkdown() and the markdown property
[ChangeLog][QtGui][Text] Markdown (CommonMark or GitHub dialect) is now
a supported format for reading into and writing from QTextDocument.
Change-Id: I663a77017fac7ae1b3f9a400f5cd357bb40750af
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
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