emoji-cheat-sheet/scripts/markdown.js

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const { name: repoName, repository } = require("../package.json");
const resource1 = "[GitHub Emoji API](https://api.github.com/emojis)";
const resoruce2 =
"[Unicode Full Emoji List](https://unicode.org/emoji/charts/full-emoji-list.html)";
const columns = 2;
const tocName = "Table of Contents";
/**
* @typedef {Array<string[]>} GithubEmojiIds
*/
/**
* @param {{ [category: string]: { [subcategory: string]: GithubEmojiIds } }} categorizedGithubEmojiIds
*/
function generateCheatSheet(categorizedGithubEmojiIds) {
const lineTexts = [];
lineTexts.push(`# ${repoName}`);
lineTexts.push("");
lineTexts.push(
`[![build](https://travis-ci.org/${repository}.svg?branch=master)](https://travis-ci.org/${repository})`
);
lineTexts.push("");
lineTexts.push(
`This cheat sheet is automatically generated from ${resource1} and ${resoruce2}.`
);
lineTexts.push("");
const categories = Object.keys(categorizedGithubEmojiIds);
lineTexts.push(`## ${tocName}`);
lineTexts.push("");
lineTexts.push(...generateToc(categories));
lineTexts.push("");
for (const category of categories) {
lineTexts.push(`### ${category}`);
lineTexts.push("");
const subcategorizeGithubEmojiIds = categorizedGithubEmojiIds[category];
const subcategories = Object.keys(subcategorizeGithubEmojiIds);
if (subcategories.length > 1) {
lineTexts.push(...generateToc(subcategories));
lineTexts.push("");
}
for (const subcategory of subcategories) {
if (subcategory) {
lineTexts.push(`#### ${subcategory}`);
lineTexts.push("");
}
lineTexts.push(
...generateTable(
subcategorizeGithubEmojiIds[subcategory],
`[top](#${getHeaderId(category)})`,
`[top](#${getHeaderId(tocName)})`
)
);
lineTexts.push("");
}
}
return lineTexts.join("\n");
}
/**
* @param {string[]} headers
*/
function generateToc(headers) {
return headers.map(header => `- [${header}](#${getHeaderId(header)})`);
}
/**
* @param {string} header
*/
function getHeaderId(header) {
return header
.toLowerCase()
.replace(/ /g, "-")
.replace(/[^a-z0-9-]/g, "");
}
/**
* @param {GithubEmojiIds} githubEmojiIds
* @param {string} leftText
* @param {string} rightText
*/
function generateTable(githubEmojiIds, leftText, rightText) {
const lineTexts = [];
let header = "";
let delimieter = "";
header += "| ";
delimieter += "| - ";
for (let i = 0; i < columns && i < githubEmojiIds.length; i++) {
header += `| ico | shortcode `;
delimieter += "| :-: | - ";
}
header += "| |";
delimieter += "| - |";
lineTexts.push(header, delimieter);
for (let i = 0; i < githubEmojiIds.length; i += columns) {
let lineText = `| ${leftText} `;
for (let j = 0; j < columns; j++) {
if (i + j < githubEmojiIds.length) {
const emojiIds = githubEmojiIds[i + j];
const emojiId = emojiIds[0];
lineText += `| :${emojiId}: | \`:${emojiId}:\` `;
for (let k = 1; k < emojiIds.length; k++) {
lineText += `<br /> \`:${emojiIds[k]}:\` `;
}
} else if (githubEmojiIds.length > columns) {
lineText += "| | ";
}
}
lineText += `| ${rightText} |`;
lineTexts.push(lineText);
}
return lineTexts;
}
module.exports = {
generateCheatSheet
};