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Add config to preserve IDs based on prefix matching (#1060)

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add parameter to preserve IDs based on prefix matching
This commit is contained in:
Brad Kotsopoulos
2019-02-24 13:02:03 -05:00
committed by Lev Solntsev
parent dcd95d50ff
commit 7eeb5d064d
5 changed files with 113 additions and 3 deletions
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22
plugins/cleanupIDs.js
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@ -11,6 +11,7 @@ exports.params = {
minify: true,
prefix: '',
preserve: [],
preservePrefixes: [],
force: false
};
@ -41,6 +42,7 @@ exports.fn = function(data, params) {
referencesIDs = new Map(),
hasStyleOrScript = false,
preserveIDs = new Set(Array.isArray(params.preserve) ? params.preserve : params.preserve ? [params.preserve] : []),
preserveIDPrefixes = new Set(Array.isArray(params.preservePrefixes) ? params.preservePrefixes : (params.preservePrefixes ? [params.preservePrefixes] : [])),
idValuePrefix = '#',
idValuePostfix = '.';
@ -54,7 +56,7 @@ exports.fn = function(data, params) {
for (var i = 0; i < items.content.length && !hasStyleOrScript; i++) {
var item = items.content[i];
// quit if <style> of <script> presents ('force' param prevents quitting)
// quit if <style> or <script> present ('force' param prevents quitting)
if (!params.force) {
if (item.isElem(styleOrScript)) {
hasStyleOrScript = true;
@ -124,7 +126,7 @@ exports.fn = function(data, params) {
if (IDs.has(key)) {
// replace referenced IDs with the minified ones
if (params.minify && !preserveIDs.has(key)) {
if (params.minify && !preserveIDs.has(key) && !idMatchesPrefix(preserveIDPrefixes, key)) {
currentIDstring = getIDstring(currentID = generateID(currentID), params);
IDs.get(key).attr('id').value = currentIDstring;
@ -141,7 +143,7 @@ exports.fn = function(data, params) {
// remove non-referenced IDs attributes from elements
if (params.remove) {
for(var keyElem of IDs) {
if (!preserveIDs.has(keyElem[0])) {
if (!preserveIDs.has(keyElem[0]) && !idMatchesPrefix(preserveIDPrefixes, keyElem[0])) {
keyElem[1].removeAttr('id');
}
}
@ -149,6 +151,20 @@ exports.fn = function(data, params) {
return data;
};
/**
* Check if an ID starts with any one of a list of strings.
*
* @param {Array} of prefix strings
* @param {String} current ID
* @return {Boolean} if currentID starts with one of the strings in prefixArray
*/
function idMatchesPrefix(prefixArray, currentID) {
if (!currentID) return false;
for (var prefix of prefixArray) if (currentID.startsWith(prefix)) return true;
return false;
}
/**
* Generate unique minimal ID.
*