mini_markdown

A dependency free markdown renderer.

---

The design goal of this project is to provide a dependency free, feature complete markdown to html renderer. All output is sanitized and any script injection vector is considered a bug.

Status

Markdown support is now feature complete with testing ongoing.
Please report bugs as issues should you find any.
All output and interfaces are considered unstable for the time being.

Usage

The primary function in this library is the render function.

pub fn render(source: &str) -> String {
    parse(lex(source))
}

If all you want is to take markdown and get html render is your function. If you want to work with the internal structure the parse and lex functions are public.

Syntax

Headings

Headings are supported with the # syntax only. Up to six levels are supported

Paragraphs

One or more lines separating text will begin a new paragraph

Line breaks

Two or more spaces at the end of a line will add a <br>

Italic text

Text surrounded by any pairing of * and _ will be italicized

*text*, _text_, *text_ or _text*

Bold text

Text surrounded by any pairing of two * and/or _ will be bolded

Bold Italic text

Text surrounded by any pairing of three * and/or _ will be bolded and italicized

Blockquotes and nested block quotes

Blockquotes and nested block quotes are supported using the > character

> Some quoted text
>> Some quoted text in a nested quote
> Some more text in the outer quote

Ordered Lists

Ordered lists are supported by numbering new lines

1. One
2. Two
3. Three

Max length is 9 elements

Unordered lists

Unordered lists are supported by starting a line with -, +, or *

* Some
- list
+ text

Inline code

Inline code is supported by encapsulating text in two ` characters

Code blocks

Code blocks are supported by either indenting lines with four spaces or by encapsulating lines with three ` characters before and after.

Images

Images are supported with the following syntax ![Hover text](link)

Links

Links are supported with the following syntax [Text](link)

Quick links

Url or email text can be made into a link by enclosing the text in angle brackets <text>

Horizontal rules

Horizontal rules are supported with three or more *, -, or _ characters alone on a line

****
-----
or
______

Escaping characters

Control characters can be escaped by preceding them with a backslash \

Collapsable sections

Collapsable sections are supported and follow the html for a details section.

<details>
<summary>Summary text</summary>
Text
</details>

Will render as

Summary text

Text

Tables

HTML tables are supported with the following

| Syntax      | Description | Test Text     |
| :---        |    :----:   |          ---: |
| Header      | Title       | Here's this   |
| Paragraph   | Text        | And more      |

which renders as

Syntax	Description	Test Text
Header	Title	Here's this
Paragraph	Text	And more

The : character will define the alignments as shown.

Footnotes

References with text tags are supported for both inline footnotes and multiline big footnotes.
For example

Here's a simple footnote,[^1] and here's a longer one.[^bignote]
[^1]: This is the first footnote.

[^bignote]: Here's one with multiple paragraphs and code.

    Indent paragraphs to include them in the footnote.

    `{ my code }`

    Add as many paragraphs as you like.

renders as

Here's a simple footnote,¹ and here's a longer one.²

Footnotes

1. This is the first footnote. ↩

2. Here's one with multiple paragraphs and code.

   Indent paragraphs to include them in the footnote.

   { my code }

   Add as many paragraphs as you like. ↩