forked from dozens/cleric-plus-thief
135 lines
3.6 KiB
Markdown
135 lines
3.6 KiB
Markdown
okay so i got up to some bullshit while writing this, so listen up.
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I'm still using the "blog" and "journal" formats from miso.town for writing the blog and the journal.
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<https://blog.miso.town/>
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<https://journal.miso.town/>
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But I grew unsatisfied using them to auto-generate the rss feeds.
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Primarily because it couldn't handle the "~/dozens" part of my base "https://tilde.town/~dozens/clericthief" URL. And also because it included a lot of auxilary HTML elements like the navbar.
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So I decided I needed to roll my own feed generators.
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I discovered a clever way to use ed.
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You can wrap a file in ed commands like so:
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```
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echo i | cat - file.txt commands.ed | ed -s
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```
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where `i` is the ed command for insert.
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The contents of your file, `file.txt` follow.
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Make the first ed command in `commands.ed` a `.` to stop insert mode.
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And then all your other ed commands can follow.
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`ed -s` starts ed in silent mode.
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If you end your list of commands with `1,$w /dev/stdout` then you can pipe the output to something else.
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Neat!
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So what I had was some very lightly structured text.
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I decided the easiest thing to do would be to isolate the list of blog entries, and then format them as recfiles, which was pretty easy.
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Here's my index.md at the time of this writing:
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```
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---
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title: "Cleric + Thief"
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subtitle: Adventures of Iofi and Maddox
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created: 2022-08-30
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updated: 2022-09-01
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---
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[subscribe to episodes](episodes.xml)
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<!-- BEGIN //-->
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- <time>2022-09-03</time> - [00003. The Hand](00003-hand.html)
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- <time>2022-09-01</time> - [00002. Meadowgloom](00002-meadowgloom.html)
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- <time>2022-08-30</time> - [00001. Cleric + Thief](00001-introductions.html)
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<!-- END //-->
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```
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ed commands:
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- `g/BEGIN/ka` - find 'BEGIN' and make a bookmark `a`
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- `g/END/kb` - find 'END' and make a bookmark `a`
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- `1,'ad` - delete eveything from the 1st line up through bookmark a
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- `'b,$d` - delete from 'b to the end of the file
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output:
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```
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- <time>2022-09-03</time> - [00003. The Hand](00003-hand.html)
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- <time>2022-09-01</time> - [00002. Meadowgloom](00002-meadowgloom.html)
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- <time>2022-08-30</time> - [00001. Cleric + Thief](00001-introductions.html)
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```
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Then I did some search and replace so that each line turned into a recfile record.
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ed commands for that:
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```
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%s/^- //
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%s,<time>\(.*\)</time>,time: \1|,
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%s, - \[\(.*\)\],title: \1|,
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%s,(\(.*\))$,source: \1|link: \1|,
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%s/html/md/
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%s/|/\
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/g
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```
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results:
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```
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time: 2022-09-03
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title: 00003. The Hand
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link: 00003-hand.html
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source: 00003-hand.md
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time: 2022-09-01
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title: 00002. Meadowgloom
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link: 00002-meadowgloom.html
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source: 00002-meadowgloom.md
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time: 2022-08-30
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title: 00001. Cleric + Thief
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link: 00001-introductions.html
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source: 00001-introductions.md
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```
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and from there I could write a recfmt template:
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```
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01 <item>
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02 <title>{{title}}</title>
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03 <link>http://tilde.town/~dozens/clericthief/{{link}}</link>
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04 <pubDate>syscmd(`gdate -d {{time}}')</pubDate>
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05 <guid isPermaLink="false">{{time}} {{title}}</guid>
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06 <description>
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07 <![CDATA[
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08 include(`src/{{source}}')
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09 ]]>
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10 </description>
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11 </item>
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```
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There are m4 macros on lines 04 and 08 to insert the correctly formatted time, and to include the markdown content, respectively.
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You can see the whole thing in the justfile, but the gist to get each rss item is:
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```
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echo i | cat - src/index.md ed/blogcommands.ed | ed -s | recfmt -f templates/blogitem.template | m4
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```
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The process for the journal entries is basically the same, with a little extra search and replace funny business in ed since the whole thing is one flat document.
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The thing that really made all this work was the rec format. It made it super easy to format the data.
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