markdown-doctest/dist/parse-code-snippets-from-markdown.js

Test all the code in your markdown docs!

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var isStartOfSnippet = function (line) {
    return line.trim().match(/```\W*(JavaScript|js|es6)\s?$/i);
};
var isEndOfSnippet = function (line) { return line.trim() === "```"; };
var isSkip = function (line) { return line.trim() === "<!-- skip-example -->"; };
var isCodeSharedInFile = function (line) {
    return line.trim() === "<!-- share-code-between-examples -->";
};
function startNewSnippet(snippets, fileName, lineNumber) {
    var skip = snippets.skip;
    snippets.skip = false;
    return Object.assign(snippets, {
        snippets: snippets.snippets.concat([
            { code: "", fileName: fileName, lineNumber: lineNumber, complete: false, skip: skip }
        ])
    });
}
function addLineToLastSnippet(line) {
    return function addLine(snippets) {
        var lastSnippet = snippets.snippets[snippets.snippets.length - 1];
        if (lastSnippet && !lastSnippet.complete) {
            lastSnippet.code += line + "\n";
        }
        return snippets;
    };
}
function endSnippet(snippets, fileName, lineNumber) {
    var lastSnippet = snippets.snippets[snippets.snippets.length - 1];
    if (lastSnippet) {
        lastSnippet.complete = true;
    }
    return snippets;
}
function skip(snippets) {
    snippets.skip = true;
    return snippets;
}
function shareCodeInFile(snippets) {
    snippets.shareCodeInFile = true;
    return snippets;
}
function parseLine(line) {
    if (isStartOfSnippet(line)) {
        return startNewSnippet;
    }
    if (isEndOfSnippet(line)) {
        return endSnippet;
    }
    if (isSkip(line)) {
        return skip;
    }
    if (isCodeSharedInFile(line)) {
        return shareCodeInFile;
    }
    return addLineToLastSnippet(line);
}
function parseCodeSnippets(args) {
    var contents = args.contents;
    var fileName = args.fileName;
    var initialState = {
        snippets: [],
        shareCodeInFile: false,
        complete: false
    };
    var results = contents
        .split("\n")
        .map(parseLine)
        .reduce(function (snippets, lineAction, index) {
        return lineAction(snippets, fileName, index + 1);
    }, initialState);
    var codeSnippets = results.snippets;
    var lastSnippet = codeSnippets[codeSnippets.length - 1];
    if (lastSnippet && !lastSnippet.complete) {
        throw new Error("Snippet parsing was incomplete");
    }
    return {
        fileName: fileName,
        codeSnippets: codeSnippets,
        shareCodeInFile: results.shareCodeInFile
    };
}
exports.default = parseCodeSnippets;