//

// 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)) {

        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', 'c': [] };

}

function Str(value) {

    return { 't': 'Str', 'c': value };

}

function Strong(value) {

    return { 't': 'Strong', 'c': value };

}

function Header(value) {

    return { 't': 'Header', 'c': value };

}

//

// Callback to change all Str texts to upper case

//

function uppercase(type, value) {

    if (type === 'Str') {

        return Str(value.toUpperCase());

    }

}

//

// Main callback function that performs our man page AST rewrites

//

function manpage_filter(type, value) {

    // If it is a header, decrease the heading level by one, and

    // if it is a level 1 header, convert it to upper case.

    if (type === 'Header') {

        value[0] = Math.max(1, value[0] - 1);

        if (value[0] == 1) {

            return Header(traverse(value, uppercase));

        }

    }

    // Man pages does not have superscript. We use it for footnotes, so

    // enclose in [...] for best representation.

    if (type === 'Superscript') {

        return [ Str('['), value[0], Str(']') ];

    }

    // If it is a link, put the link name in bold. If it is an external

    // link, put it in brackets. Otherwise, it is either an internal link

    // (like "#next-heading"), or a relative link to another man page

    // (like "java.html"), so remove it for man pages.

    if (type === 'Link') {

        var target = value[2][0];

        if (target.match(/^http[s]?:/)) {

            return [ Strong(value[1]), Space(), Str('[' + target + ']') ];

        } else {

            return Strong(value[1]);

        }

    }

}

//

// Main function

//

function main() {

    var input = "";

    while (line = readLine()) {

        input = input.concat(line);

    }

    var json = JSON.parse(input);

    var transformed_json = traverse(json, manpage_filter);

    print(JSON.stringify(transformed_json));

}

// ... and execute it

main();