[poppler] How to specify format of output numbering?

[suzuki toshiya]

Dear Abigaile,

At present, 3-digit-numbering is hardwired, like, this

https://gitlab.freedesktop.org/poppler/poppler/blob/master/utils/ImageOutputDev.cc#L83

void ImageOutputDev::setFilename(const char *fileExt) {
  if (pageNames) {
    sprintf(fileName, "%s-%03d-%03d.%s", fileRoot, pageNum, imgNum, fileExt);
  } else {
    sprintf(fileName, "%s-%03d.%s", fileRoot, imgNum, fileExt);
  }
}

I want to know whether good syntax to specify numbering
format, if possible, which is already used by poppler's
user interfaces.

Regards,
mpsuzuki

Abigaile Johannesburg wrote:
> Hello,
> 
> The default output numbering of pdfimages is 3 digit, e.g,  image-root-nnn.xxx. But if there are more than 1,000 ouput images, there will be files image-root-nnn.xxx (3 digit number sequence) and image-root-nnnn.xxx (4 digit number sequence). When processing book images in bash, the ordering needs a fix. At the moment I use rename
> 
> rename 's/img-([0-9]{3}).pbm/img-0$1.pbm/' *.pbm
> 
> Therefore I was wondering if there is a way to specify the format of output numbering directly in pdfimages.
> 
> Thanks,
> Abi
> 
>