User:IceWelder/dashes.js

// NOTICE: This script is a fork of GregU's dashes script, all credit goes to them
/**
 * This script is used to fix dashes in accordance with the [[MOS:DASH]] guideline
 * Please leave bug reports and suggestions on my talk page
 */

function fixDashes(str) {
    if (str.search(/nodashes/i) >= 0) {
        return str;
    }

    var scpat = /\bscores?\b|\[\[Category:.*\b(sport|athlet|players|teams|games|league|champion|tournament|competit|cup\b|\w+ball\b|hockey|lacrosse|cricket|rugby|tennis|golf|polo|boxing|boxers|martial.art|chess)/i;
    var scoresAreLikely = (str.search(scpat) >= 0);

    /* Ensure the replacement isn't a link such as [[FOO - BAR]] before
     * replacing it, so that we don't break the link. But we do want to
     * replace dashes used in the right-side label part of links. Also,
     * don't break templates, URLs, DOIs, {{#expr:}}, <math> equations,
     * source code, or <ref name="13-70">.
     */
    function ifNotLink(str) {
        var pos = arguments[arguments.length - 2];
        var string = arguments[arguments.length - 1];

        var pat = /\[\[[^|\]]*$|{{[^|}]*$|[:\/%][^\s|>]+$|<[^>]*$|#\w*expr:.*$/i;
        if (string.substring(pos - 260, pos + 1).search(pat) >= 0)
            return str; // it's a link, so don't change it

        var pat2 = /{{(main|see|detail|about|for\b|other|redir|conv|coor|sort|anchor|sfn|DNB(?: [Cc]ite|)|[Cc]ite DNB)[^}]*$/i;
        if (string.substring(pos - 260, pos + 1).search(pat2) >= 0)
            return str; // likely templates with page-name or neg params

        var pat3 = /\|\s*(CAS_number)\s*=\s*/i;
        if (string.substring(pos - 260, pos + 1).search(pat3) >= 0)
            return str; // drugbox CAS_number

        var pat4 = /\|\s*(doi|isbn)\s*=\s*/i;
        if (string.substring(pos - 260, pos + 1).search(pat4) >= 0)
            return str; // doi or isbn

        var m = string.slice(pos).search(/<\/?(math|pre|code|tt|source|syntaxhighlight|gallery)\b/i);
        if (m >= 0 && string.charAt(pos + m + 1) === '/')
            return str; // don't break a <math> equation, or source code

        if (string.slice(pos).search(/^[^|{}[\]<>\n]*\.([a-z]{3,4}\s*[|}]|jpg|png|svg)|^.*hyphen/i) >= 0)
            return str; // it's a file name parameter, or <!--sic hyphen-->

        if (str.search(/[ |(>][-–]\b/) >= 0)
            return str.replace(/[-–]/, "−"); // minus sign
        else
            return str.replace(/--+\b/g, "—").replace(/[-–−]+/g, "–"); // dash
    }

    str = str.replace(/\s--?\s/g, ifNotLink); // en dash looks better
    str = str.replace(/[a-z\d]---?[a-z\d]/ig, ifNotLink); // em dash
    str = str.replace(/\d\d\d]*}* *[-−–—] *(present|current|ongoing)\b/ig, ifNotLink); // 1973-present
    str = str.replace(/[^\w-−–—](18|19|20)\d\d]*}*[-−–—][^\w-−–—]/g, ifNotLink); // (1973-)
    str = str.replace(/\d(s|%|\?|''')[-−]\d/g, ifNotLink); // 1950s-1960s, 40%-50%
    str = str.replace(/\d[-−–—](\$|'+)\d/g, ifNotLink); // $40-$50, 7-'''4''', '49-'53
    str = str.replace(/[½⅓⅔¼¾⅛⅜⅝⅞]%?[-−–—][\d½⅓⅔¼¾⅛⅜⅝⅞]/g, ifNotLink); // 3½-6
    str = str.replace(/\d(st|nd|rd|th)?[-−–—]\d+(st|nd|rd|th)\b/g, ifNotLink); // 2nd-3rd

    str = str.replace(/([a-z,'"”\]>] +|\(|^\| *|\|\| *)[-−–—]\d/mig, ifNotLink); // minus -35
    str = str.replace(/<((sup|sub|td)>\s*)[-−–—](\d)/ig, "<$1−$3"); // 10<sup>-3</sup>
    str = str.replace(/,*(?=.? ) *[-−–—] *(\d*:\d\d[\s*<])/g, " – $1"); // album track listings

    // November 15, 2005-March 7, 2006; [[March 18]]-[[April 4]]
    str = str.replace(/(\d]*)[-−–—](\[*(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[a-z]* +\d)/g, "$1 – $2");
    // July-August 2007
    str = str.replace(/\b((Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[a-z]*[-−–—]?\b){2,}/g, ifNotLink);
    // [[266]]-[[283]]
    str = str.replace(/(\d(?: BC)?]])[-−–—]((ca?\.|AD ?)?\[\[\d+[^\d-])/g, "$1–$2");
    // (1984 – 1992)
    str = str.replace(/([(|=] *\[*\d+]*) +[-−–—] +(\[*\d+]*\s*[)|}])/g, "$1–$2");
    // iv-xii
    str = str.replace(/[ ;(=](?=\w+-)(m*(cm|cd|d?c*)(xc|xl|l?x*)(ix|iv|v?i*)-?\b){2}[^\w-]/g, ifNotLink);

    if (scoresAreLikely) // W-L-D or 73–70–67–70=280, but not castling
        str = str.replace(/[^\w-−–—](?!0-0-0)(\d\d?\d?[-−–—]){2,}\d\d?[^\w\/-−–—]/g, ifNotLink);

    str = str.replace(/\b(\d+)[-−–—](year|month|day|hour|minute|mile|yard|foot|inch|bit|door|speed|gun|page|seat|way|point|ton|man)\b/g, "$1-$2"); // hyphen

    /* Number ranges and scores should use en dashes, per [[MOS:DASH]].
     * This has been well-tested and false positives (e.g., ID nos.) are rare.
     */
    function range(str, from, to, pos, string) {
        var dash = true;
        var except = /\b(fig(ure)?|table|example|exhibit|circular|section|part|number|no|nr|id|model|pub|std|report|rpt|law|[P.]L|p|page|date|IS\wN\b[ a-z]*|SCOTUS)[^\w(,;]*$/i;
        var rpat = /^([^A-Za-z]|nbsp)*(AD|BC|B?CE|BP|[kMG]a|km|mi|kg|lb|\w?Hz|vote|decision|record|odds|scor\w*|win|loss|tie|draw|lead|victory|defeat|upset|run|deficit|start|finish|season|game)\b/;
        var lpat = /\b(pages|pp|rp|nos|\d+\)?'*[:,]|(w[io]n|lost?|tie|dr.w|lea?d|f.ll|vot|rul|decid|pass|fail|defeat|scor|gam|match|trail|finish|end)e?[ds]?|\w\w+ing|ahead|behind|up|down|from|to|is|are|was|were|of|out|by|an?|at|it|went|go|gone|beaten|between)([^a-z]|nbsp)*$/i;
        var inorder = (to - 0 > from.slice(-to.length)); // pp 362-5
        var precision = Math.max(from.search(/0*$/), to.search(/0*$/));

        if (string.substring(pos - 20, pos + 1).search(except) >= 0) {
            return str; // based on preceding word, looks like a ref number
        }
        if (from === 9 && to === 11) {
            dash = false; // 9-11 is a common special case
        }
        if (from - 0 >= to) {
            dash = false; // values don't look like a range
        }
        if (to - from > 120 && from * (precision > 2 ? 5 : 50) < to && from > 1) {
            dash = false; // values don't look like a range
        }
        if (scoresAreLikely && from <= 900 && to <= 900) {
            dash = true; // likely a score or wins-losses
        }
        if (from < 2 - to && string.search(/Category:.*\bChess\b/i) >= 0) {
            dash = false; // chess notations 0-0, 0-1, 1-0
        }
        if (str.charAt(0) === '(' && string.charAt(pos + str.length) === ')') {
            dash = true; // scores often seen as (8-4)
        }
        if (from.search(/^0./) >= 0 || to.search(/^0./) >= 0) {
            dash = false; // 3-07 and 0123-4567 look like ref numbers
        }
        if (string.substr(pos - 1, 15).search(/^\d([:,.])\d+.\d+\1\d/) >= 0) {
            dash = true; // 10:30-11:30, 35,000-40,000, 2.5-4.0
        }
        if (string.substr(pos, 30).search(rpat) >= 0) {
            dash = true; // 12-5 BC, 5-5000&nbsp;km, 6-4 win, 73-50 vote
        }
        if (string.substring(pos - 80, pos).search(lpat) >= 0) {
            dash = true; // pp.&nbsp;8, 25, 270-74, 313-7; won 6-4, 6-2
        }
        if (from > 1000 && from < 2100 && to.length === 2 && inorder) {
            dash = true; // 1994-95 year range
        }
        return dash ? ifNotLink(str, pos, string) : str;
    }

    str = str.replace(/[^\w\/+-−–—](\d{1,4})[-−](\d{1,4})(?!'*[\w\/+-−–—])/g, range);

    return str;
}

function fixDashesMain() {
    var txt = document.editform.wpTextbox1;
    // simplify core regexes
    var str = txt.value.replace(/&#8208;|&#x2010;/g, '-')
                       .replace(/&minus;|&#8722;|&#x2212;/g, '-')
                       .replace(/&ndash;|&#8211;|&#x2013;/g, '–')
                       .replace(/&mdash;|&#8212;|&#x2014;/g, '—');

    var newstr = fixDashes(str);
    if (newstr !== str) { // don't alter encoding style if no fixes
        txt.value = newstr;
        setoptions(minor = 'true');
        setreason('fixed dashes per [[MOS:DASH]] by [[w:User:IceWelder/dashes.js|script]]', 'append');
    }

    doaction('diff');
}

if (mw.config.get('wgAction') === 'edit' || mw.config.get('wgAction') === 'submit') {
    $.when(mw.loader.using('mediawiki.util'), $.ready).then(function () {
        $(mw.util.addPortletLink('p-tb', '#', 'Fix dashes')).click(fixDashesMain);
    });
}