How to resolve the algorithm Rosetta Code/Count examples step by step in the Nim programming language

Published on 12 May 2024 09:40 PM
#Nim

How to resolve the algorithm Rosetta Code/Count examples step by step in the Nim programming language

Table of Contents

Problem Statement

Essentially, count the number of occurrences of ==header on each task page. Output: For a full output, updated periodically, see Rosetta Code/Count examples/Full list. You'll need to use the Media Wiki API, which you can find out about locally, here, or in Media Wiki's API documentation at, API:Query

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Rosetta Code/Count examples step by step in the Nim programming language

Source code in the nim programming language

import httpclient, strutils, xmltree, xmlparser, cgi

proc count(s, sub: string): int =
  var i = 0
  while true:
    i = s.find(sub, i)
    if i < 0: break
    inc i
    inc result

const
  mainSite = "http://www.rosettacode.org/mw/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=500&format=xml"
  subSite = "http://www.rosettacode.org/mw/index.php?title=$#&action=raw"

var client = newHttpClient()
var sum = 0
for node in client.getContent(mainSite).parseXml().findAll("cm"):
  let t = node.attr("title").replace(" ", "_")
  let c = client.getContent(subSite % encodeUrl(t)).toLower().count("header")
  echo t.replace("_", " "), ": ", c, " examples."
  inc sum, c

echo "\nTotal: ", sum, " examples."

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