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# Nim Atom Syndication Format module
# Written by John Conway
# Released under the MIT open source license.
import httpclient
import strutils
import sequtils
import xmlparser
import xmltree
import streams
import sugar
type
Atom* = object
author: AtomAuthor #Sugar, not in Atom spec. Returns the first author.
authors*: seq[AtomAuthor] #Pleuralised because the Atom spec allows more than one
category*: seq[string]
generator*: string
icon*: string
id*: string
link*: AtomLink
logo*: string
rights*: string
subtitle*: string
title*: string
updated*: string
entrys*: seq[AtomEntry]
AtomAuthor* = object
name*: string
url*: string
email*: string
AtomImage* = object
url*: string
title*: string
link*: string
width*: string
height*: string
description*: string
AtomLink* = object
href*: string
rel*: string
linktype*: string
hreflang*: string
title*: string
length*: string
AtomEntry* = object
author: AtomAuthor #Sugar, not in Atom spec. Returns the first author.
authors*: seq[AtomAuthor] #Pleuralised because the Atom spec allows more than one
category*: seq[string]
content*: string
contentSrc*: string
contentType*: string
id*: string
link*: AtomLink
published*: string
rights*: string
source*: string
summary*: string
title*: string
updated*: string
proc parseEntry( node: XmlNode) : AtomEntry =
var entry: AtomEntry = AtomEntry()
if node.child("author") != nil:
for con_node in node.findAll("author"):
var author: AtomAuthor = AtomAuthor()
if con_node.child("name") != nil: author.name = con_node.child("name").innerText
if con_node.child("url") != nil: author.url = con_node.child("url").innerText
if con_node.child("email") != nil: author.email = con_node.child("email").innerText
entry.authors.add(author)
if node.child("category") != nil:
entry.category = map(node.findAll("category"), (x: XmlNode) -> string => x.innerText)
if node.child("content") != nil:
entry.content = node.child("content").innerText
if node.attrs != nil:
if node.attr("type") != "": entry.contentType = node.attr("type")
if node.attr("src") != "": entry.contentSrc = node.attr("src")
if node.child("contributer") != nil:
for con_node in node.findAll("author"):
var author: AtomAuthor = AtomAuthor()
if con_node.child("name") != nil: author.name = con_node.child("name").innerText
if con_node.child("url") != nil: author.url = con_node.child("url").innerText
if con_node.child("email") != nil: author.email = con_node.child("email").innerText
entry.authors.add(author)
if node.child("id") != nil: entry.id = node.child("id").innerText
if node.child("link") != nil:
if node.attrs != nil:
if node.attr("href") != "": entry.link.href = node.attr("href")
if node.attr("rel") != "": entry.link.rel = node.attr("rel")
if node.attr("type") != "": entry.link.linktype = node.attr("type")
if node.attr("hreflang") != "": entry.link.rel = node.attr("hreflang")
if node.attr("title") != "": entry.link.rel = node.attr("title")
if node.attr("length") != "": entry.link.rel = node.attr("length")
if node.child("published") != nil: entry.published = node.child("published").innerText
if node.child("rights") != nil: entry.rights = node.child("rights").innerText
if node.child("summary") != nil: entry.summary = node.child("summary").innerText
if node.child("title") != nil: entry.title = node.child("title").innerText
if node.child("updated") != nil: entry.updated = node.child("updated").innerText
# SUGAR
if entry.authors.len() > 0:
entry.author = entry.authors[0]
else:
entry.author = AtomAuthor()
return entry
proc parseAtom*(data: string): Atom =
## Parses the Atom from the given string.
# Parse into XML.
let node: XmlNode = parseXML(newStringStream(data))
# Create the return object.
var atom: Atom = Atom()
if node.child("author") != nil:
for con_node in node.findAll("author"):
var author: AtomAuthor = AtomAuthor()
if con_node.child("name") != nil: author.name = con_node.child("name").innerText
if con_node.child("url") != nil: author.url = con_node.child("url").innerText
if con_node.child("email") != nil: author.email = con_node.child("email").innerText
atom.authors.add(author)
if node.child("category") != nil:
atom.category = map(node.findAll("category"), (x: XmlNode) -> string => x.innerText)
if node.child("generator") != nil: atom.generator = node.child("generator").innerText
if node.child("icon") != nil: atom.icon = node.child("icon").innerText
if node.child("id") != nil: atom.id = node.child("id").innerText
if node.child("link") != nil:
if node.attrs != nil:
if node.attr("href") != "": atom.link.href = node.attr("href")
if node.attr("rel") != "": atom.link.rel = node.attr("rel")
if node.attr("type") != "": atom.link.linktype = node.attr("type")
if node.attr("hreflang") != "": atom.link.rel = node.attr("hreflang")
if node.attr("title") != "": atom.link.rel = node.attr("title")
if node.attr("length") != "": atom.link.rel = node.attr("length")
if node.child("logo") != nil: atom.logo = node.child("logo").innerText
if node.child("rights") != nil: atom.rights = node.child("rights").innerText
if node.child("title") != nil: atom.title = node.child("title").innerText
if node.child("subtitle") != nil: atom.subtitle = node.child("subtitle").innerText
if node.child("updated") != nil: atom.updated = node.child("updated").innerText
if atom.authors.len() > 0:
atom.author = atom.authors[0]
else:
atom.author = AtomAuthor()
# If there are no entrys:
if node.child("entry") == nil:
atom.entrys = @[]
return atom
# Otherwise, add the entrys.
if node.child("entry") != nil:
atom.entrys = map( node.findAll("entry"), parseEntry )
# Return the Atom data.
return atom
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