![]() But in other output formats, like latex, one must explicitly specify column widths. In HTML output this isn’t a problem, since browsers compute column widths that (usually) make sense for the content. Note that allowing long cell contents, and especially block level content inside cells, raises some issues about table layout. Alternatively one could choose a different character with more contrast. The ! is very similar to the |, which has its good points and its bad points. One could even have a list in a table cell using this syntax: | aaa | - item one | Here the exclamation marks say: add the contents of these cells to the cells above them. One more thing that would be attractive in table syntax is a way to include long paragraphs in cells (or even multiple block elements).įor long paragraphs, one could do something like this: | aaa | this is really long so I just | ![]() These can be combined: | this spans two rows and two colums|| bbb | Maybe for rowspans: | this spans two rows | bbb | This would be a departure from the way pipe tables currently work. This means that if you want a blank cell you need space between the ||s. I think colspans could be supported thus: | this spans two columns || third column | But there’s a question whether we should take the headers to determine the number of columns (and truncate body rows if needed) or just take the maximum number of cells in any row. What to do if the rows have different numbers of columns? Presumably just add empty columns to all the rows. Finally, especially if headers are not required, this increases the probability that a line with a literal | will be wrongly treated as a table.Īlignments should be supported, in the now-standard way: | right | left | center | However, this makes it harder for parsers to tell right away whether we have a table line, and there’s also the issue flagged above about line blocks. Note that existing pipe tables allow the leading and trailing pipe to be skipped. I’d like to reserve this syntax for line blocks: | 15 Main St. I think | should be required at the beginning and end of the row. This is a departure from the general principle that nothing needs to be escaped inside code backticks, but it conforms to the general commonmark idea that block structure is discerned prior to inline structure. I tentatively agree with the current syntax’s decision that pipes | create cell structure, and that literal pipes need to be escaped even inside code backticks. Here are some thoughts I wrote up a couple years ago, towards a spec for tables that is largely compatible with existing pipe tables but more flexible: Please file feature requests and bugs at the issue tracker.I agree that compatibility with the widely used pipe table syntax is a good idea. firstWhere((element) => element.nodeName = 'a') Rule example - Convert the onebox section of discourse post to a link įinal FilterFn? filterFn // function for building complex element filter logicįinal Replacement? replacement // function for doing the replacingįinal Append? append // function for appending content ![]() Rule fields explaination final String name // unique rule nameįinal List? filters // simple element name filters, e.g. Want to customize element converting? Write your rules! The converted markdown table: First Header The converted markdown source: | First Header | Second Header | The default and available style options: Name If you want to customize element converting, use custom rules! nvert(html, You can config convert style by passing styleOptions to convert, elements that should be ignored also can be set with ignore. and the converted markdown should put in state. ![]() This is not best practice, you should not call convert in build Import 'package:flutter_markdown/flutter_markdown.dart' In flutter, you can use the flutter_markdown for rendering: import 'package:html2md/html2md.dart' as html2md Usage #Ī simple usage example: import 'package:html2md/html2md.dart' as html2md It supports CommonMark, simple table and custom converting rules. A library for converting HTML to Markdown in Dart.
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