Adding a/an feature, fixes #39

.gitignore

@@ -1,4 +1,5 @@
 node_modules
 src/content-script.js
 src/popup.js
+src/manifest.json
 dist

README.md

@@ -47,8 +47,9 @@ npm run test-chrome
 
 ## Copyright and License
 
-- Portions of MetamorPOV are derived from [InteractiveFics](https://github.com/interactivefics/interactive-fics), licensed under [MIT](third-party-licenses/LICENSE-InteractiveFics), copyrighted 2015-2023 by Mariam Maarouf.
-- MetamorPOV supports verb conjugation with [RosaeNLG](https://rosaenlg.org/), licensed under [Apache-2.0](third-party-licenses/LICENSE-RosaeNLG), copyrighted 2019-2024 by Ludan Stoecklé, 2015 by Forbes Lindesay, and 2009-2014 by TJ Holowaychuk.
-- MetamorPOV is themed with [Primary](https://primary-theme.github.io/), licensed under [GPL-3.0](third-party-licenses/LICENSE-Primary), copyrighted 2021-2024 by Cecilia May.
-- Icons, excepting the butterfly, are redistributed from [Luicide](https://lucide.dev), licensed under [ISC](third-party-licenses/LICENSE-Luicide), copyrighted 2022-2025 by Lucide Contributors. Luicide contains portions of Feather, licensed under [MIT](third-party-licenses/LICENSE-Feather), copyrighted 2013-2022 by Cole Bemis.
-- All other portions of MetamorPOV are licensed under [GPL-3.0-or-later](LICENSE), copyrighted 2024-2025 by Jean Viscogliosi-Pate.
+- Portions of MetamorPOV are derived from [InteractiveFics](https://github.com/interactivefics/interactive-fics), licensed under [MIT](third-party-licenses/LICENSE-InteractiveFics), copyrighted 2015–2023 by Mariam Maarouf.
+- MetamorPOV supports verb conjugation with [RosaeNLG](https://rosaenlg.org/), licensed under [Apache-2.0](third-party-licenses/LICENSE-RosaeNLG), copyrighted 2019-2024 by Ludan Stoecklé, 2015 by Forbes Lindesay, and 2009–2014 by TJ Holowaychuk.
+- MetamorPOV supports adaptive articles with [indefinite](https://github.com/tandrewnichols/indefinite), licensed under [MIT](third-party-licenses/LICENSE-indefinite), copyrighted 2015–2025 by Andrew Nichols.
+- MetamorPOV is themed with [Primary](https://primary-theme.github.io/), licensed under [GPL-3.0](third-party-licenses/LICENSE-Primary), copyrighted 2021–2024 by Cecilia May.
+- Icons, excepting the butterfly, are redistributed from [Luicide](https://lucide.dev), licensed under [ISC](third-party-licenses/LICENSE-Luicide), copyrighted 2022–2025 by Lucide Contributors. Luicide contains portions of Feather, licensed under [MIT](third-party-licenses/LICENSE-Feather), copyrighted 2013–2022 by Cole Bemis.
+- All other portions of MetamorPOV are licensed under [GPL-3.0-or-later](LICENSE), copyrighted 2024–2025 by Jean Viscogliosi-Pate.

package-lock.json

@@ -15,6 +15,7 @@
         "english-verbs-gerunds": "3.3.1",
         "english-verbs-helper": "3.3.1",
         "english-verbs-irregular": "3.3.1",
+        "indefinite": "^2.5.1",
         "rollup": "^4.27.3",
         "web-ext": "^8.3.0",
         "webextension-polyfill": "^0.12.0"
@@ -2824,6 +2825,16 @@
         "node": ">=0.8.19"
       }
     },
+    "node_modules/indefinite": {
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/indefinite/-/indefinite-2.5.1.tgz",
+      "integrity": "sha512-Ul0hCdnSjuFDEloYWeozTaEfljbz+0q+u4HsHns2dOk2DlhGlbRMGFtNcIL+Ve7sZYeIOTOAKA0usAXBGHpNDg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
     "node_modules/inflight": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",

package.json

@@ -14,7 +14,7 @@
     "test": "cp src/manifest-firefox.json src/manifest.json && npx rollup -c && npx web-ext run -s src && rm src/manifest.json",
     "test-chrome": "cp src/manifest-chrome.json src/manifest.json && npx rollup -c && chromium && rm src/manifest.json",
     "build": "cp src/manifest-firefox.json src/manifest.json && npx rollup -c && npx web-ext build -s src -a dist --ignore-files replace-words.js save-load-options.js manifest-* service-worker* -n {name}-{version}.xpi -o && rm src/manifest.json",
-    "build-chrome": "cp src/manifest-chrome.json src/manifest.json && npx rollup -c && npx web-ext build -s src -a dist --ignore-files replace-words.js save-load-options.js manifest-* background.js -n {name}-{version}-chrome.zip -o && rm src/manifest.json"
+    "build-chrome": "cp src/manifest-chrome.json src/manifest.json && npx rollup -c && npx web-ext build -s src -a dist --ignore-files replace-words.js save-load-options.js manifest-* background.js -n {name}-{version}.zip -o && rm src/manifest.json"
   },
   "devDependencies": {
     "@rollup/plugin-commonjs": "28.0.2",
@@ -23,6 +23,7 @@
     "english-verbs-gerunds": "3.3.1",
     "english-verbs-helper": "3.3.1",
     "english-verbs-irregular": "3.3.1",
+    "indefinite": "^2.5.1",
     "rollup": "^4.27.3",
     "web-ext": "^8.3.0",
     "webextension-polyfill": "^0.12.0"

src/replace-words.js

@@ -3,6 +3,7 @@ const verbsHelper = require("english-verbs-helper");
 const verbsIrregular = require("english-verbs-irregular/dist/verbs.json");
 const verbsGerunds = require("english-verbs-gerunds/dist/gerunds.json");
 const verbsData = verbsHelper.mergeVerbsData(verbsIrregular, verbsGerunds);
+const articleHelper = require("indefinite");
 
 /* Replaces verbs, point-of-view, name, pronouns, and "also" terms */
 function replaceAll() {
@@ -42,6 +43,7 @@ function replaceAll() {
       replaceCuts();
       replaceCapitals();
       replaceMirror();
+      replaceAn();
     }
   });
 }
@@ -246,6 +248,12 @@ function replaceMirror() {
   walk(document.body, searchTerm, null, mirrorMethod);
 }
 
+/* Replaces ambiguous articles with one suitable to the following word */
+function replaceAn() {
+  const searchTerm = /a\/an (\w+)/i;
+  walk(document.body, searchTerm, null, anMethod);
+}
+
 /* Turns a term into regexp format and uses that to replace it */
 function escapeAndReplace(searchTerm, replaceValue, caseSensitive) {
   let searchTermEscaped = searchTerm.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
@@ -445,6 +453,18 @@ function mirrorMethod(node, searchTerm, unused) {
   mirrorMethod(node, searchTerm, unused);
 }
 
+/* Allows for custom words to have the right article */
+function anMethod(node, searchTerm, unused) {
+  const match = node.nodeValue.match(searchTerm);
+  if (match == null) { return; }
+  const target = match[1];
+
+  let replaceValue = articleHelper(target, { numbers: 'colloquial' });
+
+  node.nodeValue = node.nodeValue.replace(searchTerm, replaceValue);
+  mirrorMethod(node, searchTerm, unused);
+}
+
 /* Returns the input word, capitalized */
 function capitalize(word) {
   return word.charAt(0).toUpperCase() + word.slice(1);

third-party-licenses/LICENSE-indefinite

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Andrew Nichols
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.