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@enkidevs/curriculum-parser-markdown
Advanced tools
Enki Curriculum Parser
Parses Enki Curriculum markdown into an AST.
The text processing architecture of Enki Curriculum is based on unifiedjs, using its markdown interfaces via remarkjs.
The parser generates an AST (sample AST) from a markdown string.
The generated AST follows the MDAST spec with some custom Enki Curriculum data.
This spec contains examples from this insight from the Enki Curriculum.
Table of Contents
Insight
Insight follows the regular MDAST spec with some additional plugins.
For information on the data (not AST structure) contained in an Insight, checkout the Enki Curriculum Wiki.
Headline
Headline (UnistParent) is a substitute node for a MDASTHeading of depth 1.
interface Headline <: UnistParent {
type: "headline";
value: string;
}
For example, the following markdown:
# Coding is fun
Yields:
{
"type": "headline",
"children": [{
"type": "text",
"value": "Coding is fun"
}]
}
Image
Image (UnistNode) inherits from MDASTImage.
If the image url contains an encoded SVG (See How to add images to Enki Curriculum), the parses attaches the flag svg: true.
interface Image <: Node {
type: "image";
title: string | null;
alt: string | null;
url: string;
svg?: true | false;
}
For example, the following markdown:
Yields:
{
"type": "image",
"title": null,
"url": "%3Csvg%20width%3D%22100%25%22%20height%3D%22auto%22%20viewBox%3D%220%200%20700%20400%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Ctitle%3EArtboard%3C%2Ftitle%3E%3Cg%20fill%3D%22none%22%20fill-rule%3D%22evenodd%22%3E%3Cpath%20d%3D%22M350%2095c19.329966%200%2035-15.6700338%2035-35%200-6.7781994-1.926799-13.1063707-5.262556-18.4666731C373.560339%2031.6072003%20362.551767%2025%20350%2025c-19.329966%200-35%2015.6700338-35%2035s15.670034%2035%2035%2035zM210%20195c19.329966%200%2035-15.670034%2035-35%200-6.778199-1.926799-13.106371-5.262556-18.466673C233.560339%20131.6072%20222.551767%20125%20210%20125c-19.329966%200-35%2015.670034-35%2035s15.670034%2035%2035%2035zM100%20296c19.329966%200%2035-15.670034%2035-35%200-6.778199-1.926799-13.106371-5.262556-18.466673C123.560339%20232.6072%20112.551767%20226%20100%20226c-19.3299662%200-35%2015.670034-35%2035s15.6700338%2035%2035%2035z%22%20stroke%3D%22currentColor%22%20stroke-width%3D%222%22%2F%3E%3Cpath%20d%3D%22M490%20195c19.329966%200%2035-15.670034%2035-35%200-6.778199-1.926799-13.106371-5.262556-18.466673C513.560339%20131.6072%20502.551767%20125%20490%20125c-19.329966%200-35%2015.670034-35%2035s15.670034%2035%2035%2035z%22%20stroke%3D%22currentColor%22%20stroke-width%3D%222%22%20fill%3D%22%23FFF%22%2F%3E%3Ctext%20font-family%3D%22RobotoMono-Light%2C%20Roboto%20Mono%22%20font-size%3D%2240%22%20font-weight%3D%22300%22%20fill%3D%22currentColor%22%3E%3Ctspan%20x%3D%22465.996094%22%20y%3D%22174%22%3E10%3C%2Ftspan%3E%3C%2Ftext%3E%3Ctext%20font-family%3D%22RobotoMono-Light%2C%20Roboto%20Mono%22%20font-size%3D%2240%22%20font-weight%3D%22300%22%20fill%3D%22currentColor%22%3E%3Ctspan%20x%3D%22197.998047%22%20y%3D%22177%22%3E3%3C%2Ftspan%3E%3C%2Ftext%3E%3Cpath%20d%3D%22M600%20296c19.329966%200%2035-15.670034%2035-35%200-6.778199-1.926799-13.106371-5.262556-18.466673C623.560339%20232.6072%20612.551767%20226%20600%20226c-19.329966%200-35%2015.670034-35%2035s15.670034%2035%2035%2035z%22%20stroke%3D%22currentColor%22%20stroke-width%3D%222%22%20fill%3D%22%23FFF%22%2F%3E%3Ctext%20font-family%3D%22RobotoMono-Light%2C%20Roboto%20Mono%22%20font-size%3D%2240%22%20font-weight%3D%22300%22%20fill%3D%22currentColor%22%3E%3Ctspan%20x%3D%22575.996094%22%20y%3D%22277%22%3E15%3C%2Ftspan%3E%3C%2Ftext%3E%3Cpath%20d%3D%22M535%20375c19.329966%200%2035-15.670034%2035-35%200-6.778199-1.926799-13.106371-5.262556-18.466673C558.560339%20311.6072%20547.551767%20305%20535%20305c-19.329966%200-35%2015.670034-35%2035s15.670034%2035%2035%2035z%22%20stroke%3D%22currentColor%22%20stroke-width%3D%222%22%20fill%3D%22%23FFF%22%2F%3E%3Ctext%20font-family%3D%22RobotoMono-Light%2C%20Roboto%20Mono%22%20font-size%3D%2240%22%20font-weight%3D%22300%22%20fill%3D%22currentColor%22%3E%3Ctspan%20x%3D%22510.996094%22%20y%3D%22356%22%3E13%3C%2Ftspan%3E%3C%2Ftext%3E%3Ctext%20font-family%3D%22RobotoMono-Light%2C%20Roboto%20Mono%22%20font-size%3D%2240%22%20font-weight%3D%22300%22%20fill%3D%22currentColor%22%3E%3Ctspan%20x%3D%2287.9980469%22%20y%3D%22277%22%3E1%3C%2Ftspan%3E%3C%2Ftext%3E%3Ctext%20font-family%3D%22RobotoMono-Light%2C%20Roboto%20Mono%22%20font-size%3D%2240%22%20font-weight%3D%22300%22%20fill%3D%22currentColor%22%3E%3Ctspan%20x%3D%22337.998047%22%20y%3D%2276%22%3E8%3C%2Ftspan%3E%3C%2Ftext%3E%3Cpath%20d%3D%22M325.305402%2085L232%20131.270754M376%2085l89.005263%2049.575516M125%20236.675909L185.724368%20186M516%20185l60.148477%2050.16054M561%20315.334131L575.702837%20285%22%20stroke%3D%22currentColor%22%20stroke-width%3D%222%22%2F%3E%3C%2Fg%3E%3C%2Fsvg%3E",
"alt": "unbalanced",
"svg": true
}
Section
Section (UnistParent) is a custom node specific to Enki Curriculum.
It is created when text is prefixed with a MDASTThematicBreak followed by MDASTHeading of depth 2.
If a section is one of the question sections, it is marked with the flag question: true.
interface Section <: UnistParent {
type: "section";
name: string | null;
question?: true | false;
}
For example, the following markdown:
---
## Content
A binary tree is called *balanced* if every leaf node is not more than a certain distance away from the root than any other leaf.
Yields:
{
"type": "section",
"name": "Content",
"children": [
{
"type": "paragraph",
"children": [
{
"type": "text",
"value": "A binary tree is called "
},
{
"type": "emphasis",
"children": [
{
"type": "text",
"value": "balanced"
}
]
},
{
"type": "text",
"value": " if every leaf node is not more than a certain distance away from the root than any other leaf."
}
]
}
]
}
YAML
YAML (Text] follows the same convention as MDASTYAML.
The YAML metadata for an Insight must be the first content at the top (based on frontmatter rules).
This parser will additionally format links to contain a "nature" field.
For example, the following YAML:
---
author: enki
levels:
- beginner
- basic
- medium
- advanced
type: normal
category: must-know
links:
- >-
[Why is it safer to keep the tree balanced?](http://stackoverflow.com/questions/8015630/definition-of-a-balanced-tree){website}
parent: removing-keys-from-a-binary-search-tree
---
Yields:
{
"type": "yaml",
"value": "author: enki\n\nlevels:\n\n - beginner\n - basic\n - medium\n - advanced\n\ntype: normal\n\ncategory: must-know\n\nlinks:\n - >-\n [Why is it safer to keep the tree balanced?](http://stackoverflow.com/questions/8015630/definition-of-a-balanced-tree){website}\n\nparent: removing-keys-from-a-binary-search-tree",
"data": {
"parsedValue": {
"author": "enki",
"levels": [
"beginner",
"basic",
"medium",
"advanced"
],
"type": "normal",
"category": "must-know",
"links": [
{
"name": "Why is it safer to keep the tree balanced?",
"url": "http://stackoverflow.com/questions/8015630/definition-of-a-balanced-tree",
"nature": "website"
}
],
"parent": "removing-keys-from-a-binary-search-tree"
}
}
Question
The question parser is a parser for the content of any question section (Section).
AnswersList
AnswersList (UnistParent) inherits from MDASTList.
The AnswersList list is the last MDASTList in a question section (when using the Insight parser) or last child of MDASTRoot (when using the Question parser). It is always unordered and is marked with the flag answers: true.
The children of AnswersList is an array of AnswersListItem, sorted top-down by correctness.
The number of correct answers equals the number of QuestionGaps in the AswerList's parent AST.
interface AnswersList <: Parent {
type: "list";
ordered: false;
start: null;
spread: true | false;
answers: true;
}
For example, the following markdown:
* Ordered linked list
* Ordered array
* Weighted graph
* Max-heap
Yields:
{
"type": "list",
"ordered": false,
"start": null,
"spread": false,
"answers": true,
"children": [
{
"type": "listItem",
"spread": false,
"checked": null,
"correct": true,
"children": [
{
"type": "paragraph",
"children": [
{
"type": "text",
"value": "Ordered linked list"
}
]
}
],
},
{
"type": "listItem",
"spread": false,
"checked": null,
"correct": false,
"children": [
{
"type": "paragraph",
"children": [
{
"type": "text",
"value": "Ordered array"
}
]
}
],
},
{
"type": "listItem",
"spread": false,
"checked": null,
"correct": false,
"children": [
{
"type": "paragraph",
"children": [
{
"type": "text",
"value": "Weighted graph"
}
]
}
]
},
{
"type": "listItem",
"spread": false,
"checked": null,
"correct": false,
"children": [
{
"type": "paragraph",
"children": [
{
"type": "text",
"value": "Max-heap"
}
]
}
]
}
]
}
AnswersListItem
AnswersListItem (UnistParent) inherits from MDASTListItem.
It is a direct child of AnswersList and does not contain a checkbox.
AnswersListItem also has a boolean flag correct where true means that item is one of the correct answers for an AnswersList and false means it is not.
interface AnswersListItem <: Parent {
type: "listItem";
spread: true | false;
checked: null;
correct: true | false;
}
For an example, see the definition of AnswersList.
Code
TODO
QuestionGap
QuestionGap (UnistNode) is a custom node specific to Enki Curriculum.
It is created anytime the string "???" is encountered.
For example, the following markdown:
???
Yields:
{
"type": "questionGap",
"value": "???"
}
QuestionHeadline
QuestionHeadline (UnistParent) is a substitute node for a MDASTHeading of depth 3 within a question section (Section).
interface QuestionHeadline <: UnistParent {
type: "questionHeadline";
}
For example, the following markdown:
### What is the output of the following script?
Yields:
{
"type": "questionHeadline",
"children": [
{
"type": "text",
"value": "What is the output of the following script?"
}
]
}
API
const {
contentTypes
} = require('@enkidevs/curriculum-helpers')
const {
getParser
} = require('@enkidevs/curriculum-parser-markdown')
const ast = getParser(contentTypes.INSIGHT).parseSync(markdownString)
Keywords
FAQs
Parses Enki Curriculum markdown into an AST
We found that @enkidevs/curriculum-parser-markdown demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 14 open source maintainers collaborating on the project.
Package last updated on 15 Nov 2024
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