User:Omegatron/monobook.js/dashfixer.js

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function replacedash() {
    var txt = document.editform.wpTextbox1;
 
    // Convert all html entities into actual dash characters 
    txt.value = txt.value.replace(/(—|—|—)/g, '—');
    txt.value = txt.value.replace(/(&#x2013|–|–)/g, '–');
    txt.value = txt.value.replace(/(−|−|−)/g, '−');
 
    // Convert -- and em dashes *with or without* spaces --> em dash character surrounded by spaces
    txt.value = txt.value.replace(/([a-zA-Z\'\"”\]\}\)])\s? ?(--|—|—)\s? ?([a-zA-Z\'\"“\[\{\(])/g, '$1 — $3');
 
    // Convert - or en dashes *with* spaces --> em dash character surrounded by spaces
    txt.value = txt.value.replace(/([a-zA-Z\'\"”\]\}])( | ) ?(-|–|–)  ?([a-zA-Z\'\"“\[\{])/g, '$1$2— $4');
 
    // Convert hyphen next to lone number into a minus sign character
//    txt.value = txt.value.replace(/([a-zA-Z\'\"”\]\>])(\s)-(\d)/g, '$1$2−$3');
//    Should not touch anything inside math tags...
 
    // Em dashes for dates?
    txt.value = txt.value.replace(/([\s\(][12]\d\d\d)\s?(--?|—|—)\s?([12]\d\d\d|\d\d)([\s\),.;])/g, '$1–$3$4');
 
    // Add a tag to the summary box
    var txt = document.editform.wpSummary;
    var summary = "[[User:Omegatron#Regular expressions|Regex dash fixer]]";
	if (txt.value.indexOf(summary) == -1) {
		if (txt.value.match(/[^\*\/\s][^\/\s]?\s*$/)) {
			txt.value += " | ";
		}
		txt.value += summary;
	}
 
    // Press the diff button to check it
    document.editform.wpDiff.click()
}
 
addOnloadHook(function () {
    if(document.forms.editform) {
        addPortletLink('p-cactions', 'javascript:replacedash()', '—', 'ca-dashfixer', 'Fixes dash formatting', '', '');
    }
});