Equivalent of which in scraping?

Question

I\'m trying to run some scraping where the action I take on a node is conditional on the contents of the node.

This should be a minimal example:

XML          


        

Answer 1

An alternate approach:

library(tidyverse)
library(rvest)

XML <- '

    Really L...

Short
'

pg <- read_html(XML)

html_nodes(pg, "td[class='id-tag']") %>%
  map_chr(function(x) {
    if (xml_find_first(x, "boolean(.//span)")) {
      x <- html_nodes(x, xpath=".//span/@title")
    }
    html_text(x)
  })

## [1] "Really Long Text" "Short"