// // Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. // // This code is free software; you can redistribute it and/or modify it // under the terms of the GNU General Public License version 2 only, as // published by the Free Software Foundation. // // This code is distributed in the hope that it will be useful, but WITHOUT // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // version 2 for more details (a copy is included in the LICENSE file that // accompanied this code). // // You should have received a copy of the GNU General Public License version // 2 along with this work; if not, write to the Free Software Foundation, // Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. // // Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA // or visit www.oracle.com if you need additional information or have any // questions. // // // Traverse a tree of pandoc format objects, calling callback on each // element, and replacing it if callback returns a new object. // // Inspired by the walk method in // https://github.com/jgm/pandocfilters/blob/master/pandocfilters.py // function traverse(obj, callback) { if (Array.isArray(obj)) { var processed_array = []; obj.forEach(function(elem) { if (elem === Object(elem) && elem.t) { var replacement = callback(elem.t, elem.c || []); if (!replacement) { // no replacement object returned, use original processed_array.push(traverse(elem, callback)); } else if (Array.isArray(replacement)) { // array of objects returned, splice all elements into array replacement.forEach(function(repl_elem) { processed_array.push(traverse(repl_elem, callback)); }) } else { // replacement object given, traverse it processed_array.push(traverse(replacement, callback)); } } else { processed_array.push(traverse(elem, callback)); } }) return processed_array; } else if (obj === Object(obj)) { if (obj.t) { var replacement = callback(obj.t, obj.c || []); if (replacement) { return replacement; } } var processed_obj = {}; Object.keys(obj).forEach(function(key) { processed_obj[key] = traverse(obj[key], callback); }) return processed_obj; } else { return obj; } } // // Helper constructors to create pandoc format objects // function Space() { return { 't': 'Space' }; } function Str(value) { return { 't': 'Str', 'c': value }; } function MetaInlines(value) { return { 't': 'MetaInlines', 'c': value }; } function change_title(type, value) { if (type === 'MetaInlines') { if (value[0].t === 'Str') { var match = value[0].c.match(/^([A-Z0-9]+)\([0-9]+\)$/); if (match) { return MetaInlines([ Str("The"), Space(), Str(match[1].toLowerCase()), Space(), Str("Command") ]); } } } } // // Main function // function main() { var input = ""; while (line = readLine()) { input = input.concat(line); } var json = JSON.parse(input); var meta = json.meta; if (meta) { meta.date = undefined; var title = meta.title; if (meta.title) { meta.title = traverse(meta.title, change_title); } } print(JSON.stringify(json)); } // ... and execute it main();