Handle special characters in "target" completion

Hyphens should be suppressed and underscores are to be taken as pairs
which contain the real value to be picked.

Signed-off-by: Miquel Sabaté Solà <msabate@suse.com>

app/javascript/controllers/thing_controller.js

@@ -33,14 +33,30 @@ export default class extends Controller {
       return;
     }
 
-    const authors = text.split(',').map(function(author) {
-      return author.split(' ').pop().trim();
-    });
-
-    this.firstPart = authors.join('');
+    this.firstPart = text.split(',').map(this.parseAuthor).join('');
     this.identifierTarget.value = `${this.firstPart}${this.lastPart}`;
   }
 
+  // Returns the author compressed as expected for "target" autocompletion.
+  parseAuthor(author) {
+    // First of all try to match a pair of "_". If these are found, then we have
+    // to return whatever is in there with no spaces.
+    let idx = author.indexOf('_');
+
+    if (idx > -1) {
+      let idx2 = author.indexOf('_', idx + 1);
+      if (idx2 > -1) {
+        return author.substring(idx + 1, idx2).replace(' ', '');
+      }
+    }
+
+    // There was no pair of underscores, let's proceed by picking on the last
+    // name.
+    return author
+      .split(' ').pop().trim()  // Pick the last element.
+      .replace('-', '');        // "Last-Other" => "LastOther"
+  }
+
   // Update the information we get from the year field so to autocomplete it
   // into the "target" field if possible.
   yearUpdate() {

test/system/things_test.rb

@@ -121,7 +121,7 @@ class ThingsTest < ApplicationSystemTestCase
     assert_text I18n.t('activerecord.attributes.thing.access')
   end
 
-  test '"target" gets generated from last name' do
+  test 'js: "target" gets generated from last name' do
     visit new_thing_url
 
     fill_in I18n.t('activerecord.attributes.thing.authors'), with: 'Name LastName'
@@ -131,7 +131,7 @@ class ThingsTest < ApplicationSystemTestCase
     assert_equal 'LastName', text
   end
 
-  test '"target" gets generated from last name and year' do
+  test 'js: "target" gets generated from last name and year' do
     visit new_thing_url
 
     fill_in I18n.t('activerecord.attributes.thing.authors'), with: 'Name LastName'
@@ -142,7 +142,7 @@ class ThingsTest < ApplicationSystemTestCase
     assert_equal 'LastName2024', text
   end
 
-  test '"target" gets generated from multiple names and year' do
+  test 'js: "target" gets generated from multiple names and year' do
     visit new_thing_url
 
     fill_in I18n.t('activerecord.attributes.thing.authors'), with: 'Name LastName, John Smith'
@@ -152,4 +152,26 @@ class ThingsTest < ApplicationSystemTestCase
 
     assert_equal 'LastNameSmith2024', text
   end
+
+  test 'js: hyphenated names are treated together on "target" automation' do
+    visit new_thing_url
+
+    fill_in I18n.t('activerecord.attributes.thing.authors'), with: 'Name Last-Other, John Smith'
+    fill_in I18n.t('activerecord.attributes.thing.year'), with: '2024'
+
+    text = find_field(I18n.t('activerecord.attributes.thing.target')).value
+
+    assert_equal 'LastOtherSmith2024', text
+  end
+
+  test 'js: names surrounded by underscores are treated together on "target" automation' do
+    visit new_thing_url
+
+    fill_in I18n.t('activerecord.attributes.thing.authors'), with: 'Name _Last Other_, John Smith'
+    fill_in I18n.t('activerecord.attributes.thing.year'), with: '2024'
+
+    text = find_field(I18n.t('activerecord.attributes.thing.target')).value
+
+    assert_equal 'LastOtherSmith2024', text
+  end
 end