| 1 |
yakumo_izuru |
1.1 |
// Package blackfriday is a markdown processor. |
| 2 |
|
|
// |
| 3 |
|
|
// It translates plain text with simple formatting rules into an AST, which can |
| 4 |
|
|
// then be further processed to HTML (provided by Blackfriday itself) or other |
| 5 |
|
|
// formats (provided by the community). |
| 6 |
|
|
// |
| 7 |
|
|
// The simplest way to invoke Blackfriday is to call the Run function. It will |
| 8 |
|
|
// take a text input and produce a text output in HTML (or other format). |
| 9 |
|
|
// |
| 10 |
|
|
// A slightly more sophisticated way to use Blackfriday is to create a Markdown |
| 11 |
|
|
// processor and to call Parse, which returns a syntax tree for the input |
| 12 |
|
|
// document. You can leverage Blackfriday's parsing for content extraction from |
| 13 |
|
|
// markdown documents. You can assign a custom renderer and set various options |
| 14 |
|
|
// to the Markdown processor. |
| 15 |
|
|
// |
| 16 |
|
|
// If you're interested in calling Blackfriday from command line, see |
| 17 |
|
|
// https://github.com/russross/blackfriday-tool. |
| 18 |
|
|
// |
| 19 |
|
|
// Sanitized Anchor Names |
| 20 |
|
|
// |
| 21 |
|
|
// Blackfriday includes an algorithm for creating sanitized anchor names |
| 22 |
|
|
// corresponding to a given input text. This algorithm is used to create |
| 23 |
|
|
// anchors for headings when AutoHeadingIDs extension is enabled. The |
| 24 |
|
|
// algorithm is specified below, so that other packages can create |
| 25 |
|
|
// compatible anchor names and links to those anchors. |
| 26 |
|
|
// |
| 27 |
|
|
// The algorithm iterates over the input text, interpreted as UTF-8, |
| 28 |
|
|
// one Unicode code point (rune) at a time. All runes that are letters (category L) |
| 29 |
|
|
// or numbers (category N) are considered valid characters. They are mapped to |
| 30 |
|
|
// lower case, and included in the output. All other runes are considered |
| 31 |
|
|
// invalid characters. Invalid characters that precede the first valid character, |
| 32 |
|
|
// as well as invalid character that follow the last valid character |
| 33 |
|
|
// are dropped completely. All other sequences of invalid characters |
| 34 |
|
|
// between two valid characters are replaced with a single dash character '-'. |
| 35 |
|
|
// |
| 36 |
|
|
// SanitizedAnchorName exposes this functionality, and can be used to |
| 37 |
|
|
// create compatible links to the anchor names generated by blackfriday. |
| 38 |
|
|
// This algorithm is also implemented in a small standalone package at |
| 39 |
|
|
// github.com/shurcooL/sanitized_anchor_name. It can be useful for clients |
| 40 |
|
|
// that want a small package and don't need full functionality of blackfriday. |
| 41 |
|
|
package blackfriday |
| 42 |
|
|
|
| 43 |
|
|
// NOTE: Keep Sanitized Anchor Name algorithm in sync with package |
| 44 |
|
|
// github.com/shurcooL/sanitized_anchor_name. |
| 45 |
|
|
// Otherwise, users of sanitized_anchor_name will get anchor names |
| 46 |
|
|
// that are incompatible with those generated by blackfriday. |
