User:Pixial/formatcitations.js

function formatCitations(vertical) { var txt = document.editform.wpTextbox1; // Fill an array with one entry per each recognized citation template // Note: the regex should be changed to allow parameter values that are themselves templates, // e.g.    // I got as far as this: /(\{\{[Cc]it(?:ation|(?:ar|e) [a-z ]+)\s*)(\|\s*[^=]+=\s*(?:\{\{)?.+(?:\}\})?\s*)+(\}\})/g var originalTemplates = txt.value.match(/\{\{[Cc]it(ation|(ar|e) [a-z ]+) *\n? *\|[^{}]+\}\}/g); // Duplicate the array, for editing. We need to keep the original strings for the replacement step var tweakedTemplates = originalTemplates.slice;

for(var i = 0; i < originalTemplates.length; i++) { if(vertical) { // Fill an array with one entry per each parameter for this citation template var originalParams = originalTemplates[i].match(/ *\n? *\| *\n? *[^ =]+ *= */g); // Create array to be filled with the cleaned-up parameters. // We need to keep the original strings for the replacement step. var tweakedParams = [];

var maxWidth = 0; for(var j = 0; j < originalParams.length; j++){ // Get rid of the delimiters and spaces, keep only the parameter string tweakedParams[j] = originalParams[j].match(/[a-z1-9_-]+/)[0]; // Calculate the length of the longest parameter maxWidth = (tweakedParams[j].length>maxWidth) ? tweakedParams[j].length : maxWidth; }           maxWidth++; // We need an extra one because Array(n).join(' ') will produce a string with n-1 chars

// Generate the aligned versions of the parameters (with padding before the equal signs) for(var k = 0; k < originalParams.length; k++) { var numSpaces = maxWidth - tweakedParams[k].length; var alignedParam = "\n | " + tweakedParams[k] + new Array(numSpaces).join(" ") + " = "; // Replace the original parameters with the tweaked ones tweakedTemplates[i] = tweakedTemplates[i].replace (originalParams[k], alignedParam); }

// Also align the }} tweakedTemplates[i] = tweakedTemplates[i].replace(/ *\n? *\}\}/g,"\n }}"); // Replace the original templates with the tweaked versions txt.value = txt.value.replace(originalTemplates[i], tweakedTemplates[i]); } else { // Remove newlines tweakedTemplates[i] = tweakedTemplates[i].replace(/\n/g, ""); // Normalize spaces around the pipes and equal signs tweakedTemplates[i] = tweakedTemplates[i].replace(/ *\| *([a-z1-9_-]+) *= */g," |$1 = "); // Remove potencial extra spaces before template ends tweakedTemplates[i] = tweakedTemplates[i].replace(/ *\}\}$/," }}"); txt.value = txt.value.replace(originalTemplates[i], tweakedTemplates[i]); }   }

// Update the edit summary var sum = document.editform.wpSummary; var summary = vertical ? "convert citation templates to vertical format, for readability" : "harmonize whitespace in citation templates" ; summary += " (using Regex citation formatter)"; if (sum.value.indexOf(summary) == -1) { if (sum.value.match(/[^\*\/\s][^\/\s]?\s*$/)) { sum.value += "; "; }       sum.value += summary; }   if(!vertical) { document.editform.wpMinoredit.checked = true; } }

$(function {    if(document.forms.editform) {    	mw.loader.using( ['mediawiki.util'], function { mw.util.addPortletLink('p-cactions', 'javascript:formatCitations(false)', ' – ', 'ca-formatcitations', 'Format citations: add whitespace', '-', ''); mw.util.addPortletLink('p-cactions', 'javascript:formatCitations(true)', ' – +', 'ca-formatcitations-vertical', 'Formats citations vertically', '-', ''); });   } });