311 lines
12 KiB
JavaScript
311 lines
12 KiB
JavaScript
#!/usr/bin/env node
|
|
|
|
const fs = require("fs");
|
|
const path = require("path");
|
|
const remark = require("remark");
|
|
const languages = require("./languages");
|
|
const commandLineArgs = require("command-line-args");
|
|
|
|
const optionDefinitions = [
|
|
{ name: "input", multiple: true, defaultValue: ["./fpb/books"] },
|
|
{ name: "output", defaultValue: "./parser/fpb.json" },
|
|
];
|
|
|
|
const excludes = [
|
|
"README.md",
|
|
"CONTRIBUTING.md",
|
|
"CODE_OF_CONDUCT.md",
|
|
"SUMMARY.md",
|
|
];
|
|
|
|
/**
|
|
* Summary - Parses a list item generated from remark-parse into a readable format.
|
|
*
|
|
* Desciption - remark-parse parses a markdown file into a long, intricate json.
|
|
* Many fields in this json either give information we do not care
|
|
* about or does not go into enough detail. This function parses the
|
|
* output of remark-parse into a format more preferred by this project,
|
|
* indicating authors, notes, and links etc.
|
|
*
|
|
* @param {Object} listItem - a listItem in AST format defined by remark-parse
|
|
*
|
|
* @return {Object} Returns an Object containing details about the piece of media.
|
|
*/
|
|
let parseListItem = function (listItem) {
|
|
let stripParens = function (s) {
|
|
if (s.slice(0,1) === "(" && s.slice(-1) === ")")
|
|
return s.slice(1,-1);
|
|
return s;
|
|
}
|
|
let entry = {};
|
|
let s = ""; // If we need to build up a string over multiple listItem elements
|
|
let leftParen, rightParen = -1; // If we need to parse parenthesized text
|
|
const [link, ...otherStuff] = listItem; // head of listItem = url, the rest is "other stuff"
|
|
entry.url = link.url;
|
|
entry.title = link.children[0].value;
|
|
// remember to get OTHER STUFF!! remember there may be multiple links!
|
|
for (let i of otherStuff) {
|
|
if (s === "") { // this is almost always, except for when we are parsing a multi-element note
|
|
if (i.type === "text" && i.value.slice(0,3) === " - ") {
|
|
// author found
|
|
let parenIndex = i.value.indexOf("(");
|
|
if (parenIndex === -1) {
|
|
entry.author = i.value.slice(3).trim();
|
|
}
|
|
else {
|
|
entry.author = i.value.slice(3, parenIndex).trim(); // go from " - " until the first "("
|
|
}
|
|
}
|
|
if (i.type === "emphasis" &&
|
|
i.children[0].value.slice(0, 1) === "(" && i.children[0].value.slice(-1) === ")") {
|
|
// access notes found (currently assumes exactly one child, so far this is always the case)
|
|
entry.accessNotes = i.children[0].value.slice(1, -1);
|
|
}
|
|
if (i.type === "link") {
|
|
// other links found
|
|
if (entry.otherLinks === undefined) entry.otherLinks = [];
|
|
entry.otherLinks.push({title: stripParens(i.children[0].value), url: i.url});
|
|
// entry.otherLinks = [...entry.otherLinks, {title: i.children[0].value, url: i.url}]; // <-- i wish i could get this syntax to work with arrays
|
|
}
|
|
if (i.type === "text" && i.value.indexOf("(") !== -1) {
|
|
// notes found (currently assumes no nested parentheses)
|
|
if (entry.notes === undefined) entry.notes = [];
|
|
leftParen = i.value.indexOf("(");
|
|
while (leftParen != -1) {
|
|
rightParen = i.value.indexOf(")", leftParen);
|
|
if (rightParen === -1) {
|
|
// there must be some *emphasis* found
|
|
s += i.value.slice(leftParen);
|
|
break;
|
|
}
|
|
entry.notes.push(i.value.slice(leftParen + 1, rightParen));
|
|
leftParen = i.value.indexOf("(", rightParen);
|
|
}
|
|
}
|
|
} else { // for now we assume that all previous ifs are mutually exclusive with this, may polish later
|
|
if (i.type === "emphasis") {
|
|
// this is the emphasis, add it in boldface and move on
|
|
s += "*" + i.children[0].value + "*";
|
|
} else if (i.type === "link") {
|
|
// something has gone terribly wrong. this book must be viewed and edited manually.
|
|
entry.manualReviewRequired = true;
|
|
break;
|
|
} else {
|
|
// hopefully this is the end of the note
|
|
let rightParen = i.value.indexOf(")");
|
|
if (rightParen === -1) {
|
|
// we have to go AGAIN
|
|
s += i.value;
|
|
} else {
|
|
// finally, we have reached the end of the note
|
|
entry.notes.push(stripParens(s + i.value.slice(0, rightParen + 1)));
|
|
s = "";
|
|
// this is a copypaste of another block of code. probably not a good thing tbh.
|
|
leftParen = i.value.indexOf("(");
|
|
while (leftParen != -1) {
|
|
rightParen = i.value.indexOf(")", leftParen);
|
|
if (rightParen === -1) {
|
|
// there must be some *emphasis* found
|
|
s += i.value.slice(leftParen);
|
|
break;
|
|
}
|
|
entry.notes.push(i.value.slice(leftParen + 1, rightParen));
|
|
leftParen = i.value.indexOf("(", rightParen);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return entry;
|
|
};
|
|
|
|
// from free-programming-books-lint
|
|
function getLangFromFilename(filename) {
|
|
const dash = filename.lastIndexOf("-");
|
|
const dot = filename.lastIndexOf(".");
|
|
let lang = filename.slice(dash + 1, dot).replace(/_/, "-");
|
|
if (!languages.hasOwnProperty(lang)) {
|
|
if (/^[a-z]{2}$/.test(lang) || /^[a-z]{2}-[A-Z]{2}$/.test(lang)) {
|
|
return "";
|
|
}
|
|
lang = "en-US";
|
|
}
|
|
return lang;
|
|
}
|
|
|
|
// from free-programming-books-lint
|
|
function getFilesFromDir(dir) {
|
|
return fs
|
|
.readdirSync(dir)
|
|
.filter(
|
|
(file) =>
|
|
path.extname(file) === ".md" && excludes.indexOf(file) === -1
|
|
)
|
|
.map((file) => path.join(dir, file));
|
|
}
|
|
|
|
function getMediaFromDirectory(dir) {
|
|
const slash = dir.lastIndexOf("/");
|
|
let mediaType = dir.slice(2, slash);
|
|
return mediaType;
|
|
}
|
|
|
|
let parseMarkdown = function (doc) {
|
|
let tree = remark.parse(doc).children;
|
|
let sections = []; // This will go into root object later
|
|
let errors = [];
|
|
let currentDepth = 3; // used to determine if the last heading was an h4 or h3
|
|
|
|
// find where Index ends
|
|
// probably could be done better, review later
|
|
let i = 0,
|
|
count = 0;
|
|
for (i; i < tree.length; i++) {
|
|
if (tree[i].type == "heading" && tree[i].depth == "3") count++;
|
|
if (count == 2) break;
|
|
}
|
|
|
|
tree.slice(i).forEach((item) => {
|
|
// Start iterating after Index
|
|
try {
|
|
if (item.type == "heading" && item.children[0].value == "Index")
|
|
return;
|
|
|
|
if (item.type == "heading") {
|
|
if (item.depth == 3) {
|
|
// Heading is an h3
|
|
currentDepth = 3;
|
|
let newSection = {
|
|
section: item.children[0].value, // Get the name of the section
|
|
entries: [],
|
|
subsections: [],
|
|
};
|
|
sections.push(newSection); // Push the section to the output array
|
|
} else if (item.depth == 4) {
|
|
// Heading is an h4
|
|
currentDepth = 4;
|
|
let newSubsection = {
|
|
section: item.children[0].value, // Get the name of the subsection
|
|
entries: [],
|
|
};
|
|
sections[sections.length - 1].subsections.push(
|
|
newSubsection
|
|
); // Add to subsection array of most recent h3
|
|
}
|
|
} else if (item.type == "list") {
|
|
item.children.forEach((listItem) => {
|
|
let content = listItem.children[0].children; // gets array containing a remark-link and a remark-paragraph
|
|
// if(content[0].type !== 'link'){ // SKIPS OVER bad formatting
|
|
// return;
|
|
// }
|
|
if (currentDepth == 3) {
|
|
let contentJson = parseListItem(content);
|
|
sections[sections.length - 1].entries.push(contentJson); // add the entry to most recent h3
|
|
} else if (currentDepth == 4) {
|
|
let lastSection = sections.length - 1;
|
|
let lastSubSec =
|
|
sections[lastSection].subsections.length - 1;
|
|
let contentJson = parseListItem(content);
|
|
sections[lastSection].subsections[
|
|
lastSubSec
|
|
].entries.push(contentJson); // add entry to most recent h4
|
|
}
|
|
});
|
|
}
|
|
} catch (e) {
|
|
// if there was an error while parsing, print the error to an error log
|
|
// looks really ugly, maybe try to refine output later
|
|
let errStart = JSON.stringify(item.position.start.line)
|
|
let errEnd = JSON.stringify(item.position.end.line)
|
|
str = `Error at line ${errStart} - line ${errEnd}.`
|
|
errors.push(str);
|
|
}
|
|
});
|
|
return {sections: sections, errors: errors};
|
|
};
|
|
|
|
function parseDirectory(directory) {
|
|
let dirChildren = []; // this will hold the output each markdown doc
|
|
let dirErrors = []; //contains error for a given directory
|
|
|
|
let mediaType = getMediaFromDirectory(directory);
|
|
const filenames = getFilesFromDir(path.resolve(directory));
|
|
filenames.forEach((filename) => {
|
|
const doc = fs.readFileSync(filename);
|
|
let { sections, errors } = parseMarkdown(doc); // parse the markdown document
|
|
const langCode = getLangFromFilename(filename);
|
|
|
|
// Entries
|
|
let docJson = {
|
|
language: {
|
|
code: langCode,
|
|
name: languages[langCode],
|
|
},
|
|
index: {},
|
|
sections: sections,
|
|
};
|
|
dirChildren.push(docJson);
|
|
|
|
// Errors
|
|
if (errors.length !== 0) {
|
|
let docErrors = {
|
|
file: path.basename(filename),
|
|
errors: errors
|
|
}
|
|
dirErrors.push(docErrors);
|
|
}
|
|
});
|
|
|
|
// File entries
|
|
let dirJson = {
|
|
type: mediaType,
|
|
index: {},
|
|
children: dirChildren,
|
|
};
|
|
|
|
// Errors
|
|
|
|
return {dirJson: dirJson, dirErrors: dirErrors};
|
|
}
|
|
|
|
function parseAll(directories) {
|
|
let rootChildren = []; // this will hold the output of each directory
|
|
let rootErrors = [];
|
|
|
|
directories.forEach((directory) => {
|
|
let { dirJson, dirErrors } = parseDirectory(directory);
|
|
rootChildren.push(dirJson);
|
|
if (dirErrors.length !== 0) {
|
|
rootErrors.push({directory: path.basename(directory), files: dirErrors});
|
|
}
|
|
});
|
|
|
|
// ALl entries
|
|
let rootJson = {
|
|
type: "root",
|
|
children: rootChildren,
|
|
};
|
|
|
|
// Errors
|
|
let allErrors = {
|
|
type: "root",
|
|
directories: rootErrors
|
|
};
|
|
fs.writeFileSync(output, JSON.stringify(rootJson, null, 3), function (err) {
|
|
if (err) {
|
|
console.log(err);
|
|
}
|
|
});
|
|
fs.writeFileSync('./parser/fpb.log', JSON.stringify(allErrors, null, 3), function(err) {
|
|
if(err){
|
|
console.log(err);
|
|
}
|
|
});
|
|
}
|
|
|
|
console.time("Parse Time");
|
|
let { input, output } = commandLineArgs(optionDefinitions);
|
|
|
|
parseAll(input);
|
|
console.timeEnd("Parse Time");
|