Get number of replacements after replaceAll

1

With the Prose Mirror search module, I was wondering how to easily get the number of replacements when I perform a replace all. It works just fine, but I would like to tell the user how many instances were replaced, whether or not I first did a find (where I can get the number of ProseMirror-search-match matches in the document after doing a find.

2

You could run over the current document with the query using SearchQuery.findNext, and count the matches.

3

Two question there:

First, would I have to set the editor selection first to the beginning and then loop the findNext until it returns null? Since there is not a find first (sigh!), I do believe the findNext will start at the current selection position, returning null when the last match is found. Seems like I would have to get the current selection range (if I want it preserved), set it to the beginning, run the findNext loop and then perhaps set it back to what it was. A bit tedious (just as an observation!).

Second, would it be a good update to have the replaceAll return the number of matches instead of true/false? I use the library as is (via my npm) and do not want to have to host it locally to change it.

4

I pointed you to the findNext method on a query, not the findNext command. And no, replaceAll is a command and that doesn’t return a number.

5

So, are you saying that the query findNext (which I did understand) does not start at the current selection? I will check the source code, but because the title is findNext, I assumed it started the search at the current selection forward. Maybe it keeps its own position in the query.

6

So here is the code that works, thanks for the help Marijn!

      // Find out how many will get replaced
    let query = new SearchQuery({search: searchString, wholeWord: wholeword})
    let numFound = 0, curPos=0, result
    while (result = query.findNext(view.state, curPos)){
        numFound++
        curPos = result.from+1
    }