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https://git.sr.ht/~seirdy/seirdy.one
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a2c919ca2e
We don't need to indent children of <body> or <head> since the element type will give away the parent.
50 lines
1.9 KiB
Bash
50 lines
1.9 KiB
Bash
#!/bin/sh
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# copies an .html file to an equivalent .xhtml file, but replaces
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# the meta charset with an XML declaration for compatibility with some
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# XML tooling.
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# Expects polygot XHTML(5) markup.
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# Formats both the .html and .xhtml file.
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# this means that every index.html file has an equivalent index.xhtml file.
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# content negotiation allows an agent to pick html or xhtml.
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# use xmllint to do the formatting.
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# xmllint ruins inline CSS so delete the inline CSS and re-insert it.
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# xmllint also adds extra whitespace around <pre><code> which we remove
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# with "sd". I chose sd since it handles newlines well.
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# It also decreases indents by one level
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set -e -u
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html_file="$1"
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tmp_file="$html_file.tmp"
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xhtml_file=${html_file%*.html}.xhtml
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cleanup() {
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rm -f "$tmp_file"
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}
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trap cleanup EXIT
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# delete the stylesheet from the html file; we'll re-insert it later.
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# Also remove two indentation levels
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sed 7d "$html_file" | xmllint --format --encode UTF-8 --noent - | sd '^\t(?:\t)?' '' >"$tmp_file"
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{
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head -n7 "$tmp_file" | sd -s '/>' ' />'
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cat tmp.css
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# shellcheck disable=SC2016 # these are regex statements, not shell expressions
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tail -n +8 "$tmp_file" \
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| sd '<pre(?: tabindex="0")?>\n\t*<(code|samp)( |>)' '<pre tabindex="0"><$1$2' \
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| sd '(?:\n)?</(code|samp)>\n(?:[\t\s]*)?</pre>' '</$1></pre>' \
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| sd '</span>.span itemprop="familyName"' '</span> <span itemprop="familyName"' \
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| sd '(</picture>|src="[^"]*" ?/>)<span itemprop="name" class="p-name fn n">' '$1 <span itemprop="name" class="p-name fn n">' \
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| sd '([a-z])<(data|time)' '$1 <$2' \
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| sd '</span>(<a[^>]*rel="(?:nofollow ugc|ugc nofollow)"(?:[^>]*)?>liked</a>)' '</span> $1' \
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| sd -s '/>' ' />'
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} >>"$xhtml_file"
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# replace the html file with the formatted xhtml5 file, excluding the
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# XML declaration.
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tail -n +2 "$xhtml_file" > "$html_file"
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# remove the redundant charset declaration from the xhtml file. It's the
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# first thing in the <head>.
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sed -i 5d "$xhtml_file" # busybox sed supports "-i"
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