// TODO: make ctor so that pubDateAsUnixTimestamp gets populated.
struct Entry
{
string title;
string link;
string pubDate;
string guid;
string description; // The actual entry itself.
this(string title, string link, string pubDate, string guid, string text)
{
this.title = title;
this.link = link;
this.pubdate = pubDate;
this.guid = guid;
this.description = text;
pubDateAsUnixTimestamp = unix_timestamp_of_date(pubDate, "%Y-%m-%d %H:%M");
}
private:
int pubDateAsUnixTimestamp; // So that we can sort easily.
}
int unix_timstamp_of_date(string date, string format)
{
// TODO: used in Entry ctor.
}
Entry make_entry(DirEntry dirEntry, RssMeta rssmeta)
{
// From the DirEntry, we can get all file info, and also read the full file
// since we know its path. We just need to remember, when we read the
// entry, to only read between the and tags, whilst
// searching the full file for content, and replace all bad characters with
// escaped ones.
// Or, if does not work, we could try between some comments.
// I say, and would meet those criteria.
// COMPLETE
string get_title(DirEntry dirEntry, in string text, in RssMeta rssmeta)
{
// Title is either:
// 1) rssmeta:
// 2) <!-- rss-title: TITLE --> comment in text.
// 3) <title>TITLE from text.
string title = rssmeta.title_of(dirEntry.name);
if (title !is null)
return title;
title = find_rss_comment("title", text);
if (title !is null)
return title;
title = find_html_title(text);
return title; // even if it's null.
}
// COMPLETE
string get_link(DirEntry dirEntry, in string text, in RssMeta rssmeta)
{
// Link is either:
// 1) rssmeta:
// 2) comment in text.
string link = rssmeta.link_of(dirEntry.name);
if (link !is null)
return link;
link = find_rss_comment("link", text);
return link;
}
// Output is formatted as ISO-8601.
string get_pubdate(DirEntry dirEntry, in string text, in RssMeta rssmeta)
{
// The date must be formatted YYYY-mm-dd HH:MM.
// pubDate is either:
// 1) rssmeta:
// 2) comment in text.
// 3) the Unix timestamp of the file.
string pubDate = rssmeta.title_of(dirEntry.name);
if (pubDate !is null)
return pubDate;
pubDate = find_rss_comment("pubDate", text);
if (pubDate !is null)
return pubDate;
// TODO: add in getting date from the dirEntry.time.
return pubDate; // even if it's null.
}
// COMPLETE
string get_guid(DirEntry dirEntry, in string text, in RssMeta rssmeta)
{
// guid is either:
// 1) rssmeta:
// 2) comment in text.
// 3) delegated to get_link as a last resort.
string guid = rssmeta.guid_of(dirEntry.name);
if (guid !is null)
return guid;
guid = find_rss_comment("guid", text);
if (guid !is null)
return guid;
return get_link(dirEntry, text, rssmeta);
}
void fail(string what)
{
writeln("Error occurred when retrieving attribute ", what, " in make_entry");
exit(-1);
}
string text = readText(dirEntry.name);
string title = get_title(dirEntry, text, rssmeta);
string link = get_link(dirEntry, text, rssmeta);
string pubDate = get_pubdate(dirEntry, text, rssmeta);
string guid = get_guid(dirEntry, text, rssmeta);
if (text is null)
fail("text");
if (title is null)
fail("title");
if (link is null)
fail("link");
if (pubDate is null)
fail("pubDate");
if (guid is null)
fail("guid");
Entry ret = Entry(text, title, link, pubDate, guid);
return ret;
}