Merge pull request #28315 from overleaf/mj-word-count-cite

[web] Support citations in client side word count

GitOrigin-RevId: d3ba3d6853d87059a202366f0c47bd9d7ba53cd8

services/web/frontend/js/features/word-count-modal/utils/count-words-in-file.ts

@@ -165,15 +165,24 @@ export const countWordsInFile = (
         context: currentContext,
       })
     },
-    Command(nodeRef) {
-      const child = nodeRef.node.getChild('UnknownCommand')
-      if (!child) return
+    Cite(nodeRef) {
+      // Count as \cite[text]{citation}
+      const optionalArgs = nodeRef.node.getChildren('OptionalArgument')
+      for (const arg of optionalArgs) {
+        // We normally ignore ShortOptionalArg, so we need to iterate it
+        // explicitly
+        const child = arg.getChild('ShortOptionalArg')
+        if (!child) continue
+        iterateNode(child, 'text')
+      }
+      return false
+    },
+    UnknownCommand(nodeRef) {
+      const macro =
+        nodeRef.node.getChild('$CtrlSeq') ?? nodeRef.node.getChild('$CtrlSym')
+      if (!macro) return
 
-      const grandchild =
-        child.getChild('$CtrlSeq') ?? child.getChild('$CtrlSym')
-      if (!grandchild) return
-
-      const commandName = content.substring(grandchild.from + 1, grandchild.to)
+      const commandName = content.substring(macro.from + 1, macro.to)
       if (!commandName) return
 
       switch (commandName) {

services/web/test/frontend/features/word-count-modal/utils/count-words-in-file.test.ts

@@ -65,12 +65,12 @@ describe('word-count', function () {
       captionWords: 4,
       footnoteCharacters: 8,
       footnoteWords: 2,
-      headCharacters: 296,
-      headWords: 52,
+      headCharacters: 305,
+      headWords: 53,
       otherCharacters: 10,
       otherWords: 2,
-      textCharacters: 193,
-      textWords: 42,
+      textCharacters: 201,
+      textWords: 44,
     })
   })
 

services/web/test/frontend/features/word-count-modal/utils/word-count.tex

@@ -115,4 +115,7 @@ $2+3=5$ % 0
 
 $ 2+3 \text{ is equal to } 5 $
 
+\section{citations}
+\cite[two words]{example2025} % 2 in text (citekey ignored)
+
 \end{document}