6 files changed, 114 insertions, 0 deletions
diff --git a/doc/pdf/.gitignore b/doc/pdf/.gitignore
new file mode 100644
index 00000000..a1363379
--- /dev/null
+++ b/doc/pdf/.gitignore
@@ -0,0 +1 @@
+*.pdf
diff --git a/doc/pdf/Makefile b/doc/pdf/Makefile
new file mode 100644
index 00000000..7afbdcf2
--- /dev/null
+++ b/doc/pdf/Makefile
@@ -0,0 +1,31 @@
+PDFS += abi.pdf
+PDFS += c11.pdf
+PDFS += elf.pdf
+PDFS += intel-64-opt.pdf
+PDFS += intel-64-sdm-vol-1.pdf
+PDFS += intel-64-sdm-vol-2.pdf
+PDFS += intel-64-sdm-vol-3.pdf
+PDFS += intel-64-sdm-vol-4.pdf
+PDFS += multiboot.pdf
+
+ELF = https://refspecs.linuxbase.org/elf
+INTEL = https://software.intel.com/sites/default/files/managed
+
+URL.abi.pdf = ${ELF}/x86_64-abi-0.99.pdf
+URL.c11.pdf = http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1570.pdf
+URL.elf.pdf = ${ELF}/elf.pdf
+URL.intel-64-opt.pdf = ${INTEL}/9e/bc/64-ia-32-architectures-optimization-manual.pdf
+URL.intel-64-sdm-vol-1.pdf = ${INTEL}/a4/60/253665-sdm-vol-1.pdf
+URL.intel-64-sdm-vol-2.pdf = ${INTEL}/a4/60/325383-sdm-vol-2abcd.pdf
+URL.intel-64-sdm-vol-3.pdf = ${INTEL}/a4/60/325384-sdm-vol-3abcd.pdf
+URL.intel-64-sdm-vol-4.pdf = ${INTEL}/22/0d/335592-sdm-vol-4.pdf
+URL.multiboot.pdf = https://www.gnu.org/software/grub/manual/multiboot/multiboot.pdf
+
+all: ${PDFS}
+
+${PDFS}:
+	curl -Lf -o $@ ${URL.$@}
+	chmod a-w $@
+
+clean:
+	rm -f ${PDFS}
diff --git a/doc/rfc/.gitignore b/doc/rfc/.gitignore
new file mode 100644
index 00000000..808cd63e
--- /dev/null
+++ b/doc/rfc/.gitignore
@@ -0,0 +1,3 @@
+*.txt
+*.txt.gz
+tags
diff --git a/doc/rfc/Makefile b/doc/rfc/Makefile
new file mode 100644
index 00000000..87462a6c
--- /dev/null
+++ b/doc/rfc/Makefile
@@ -0,0 +1,21 @@
+PREFIX ?= ~/.local
+
+MODULE = ftp.rfc-editor.org::rfcs-text-only
+
+tags: rfctags.pl rfc-index.txt.gz
+	perl rfctags.pl | sort -f > $@
+
+rfc-index.txt.gz:
+	rsync -ptz ${MODULE}/rfc-index.txt ${MODULE}/'rfc[1-9]*.txt' .
+	gzip -9f *.txt
+
+clean:
+	rm -f tags *.txt *.txt.gz
+
+install: tags rfc.vim
+	install -d ${PREFIX}/share/rfc ${PREFIX}/share/nvim/site/plugin
+	ln -f tags *.txt.gz ${PREFIX}/share/rfc
+	install -m 644 rfc.vim ${PREFIX}/share/nvim/site/plugin
+
+uninstall:
+	rm -fr ${PREFIX}/share/rfc ${PREFIX}/share/nvim/site/plugin/rfc.vim
diff --git a/doc/rfc/rfc.vim b/doc/rfc/rfc.vim
new file mode 100644
index 00000000..2455d8a6
--- /dev/null
+++ b/doc/rfc/rfc.vim
@@ -0,0 +1,30 @@
+if !exists('g:rfc_path')
+	let g:rfc_path = expand('<sfile>:h:h:h:h') . '/rfc'
+endif
+
+function! s:RFC(number)
+	if !empty(a:number)
+		let number = str2nr(matchstr(a:number, '\d\+'), 10)
+	else
+		let number = '-index'
+	endif
+	let path = expand(g:rfc_path . '/rfc' . number . '.txt.gz')
+	if filereadable(path)
+		execute 'silent' 'noswapfile' 'view' path
+	else
+		echohl ErrorMsg | echo 'No such RFC' a:number | echohl None
+	endif
+endfunction
+
+function! s:BufRead()
+	setlocal readonly
+	setlocal keywordprg=:RFC
+	setlocal iskeyword=a-z,A-Z,48-57,.,[,],-,_
+	nmap <buffer> <silent> gO :call search('^Table of Contents', 'bcs')<CR>
+endfunction
+
+command! -bar -nargs=? RFC call s:RFC(<q-args>)
+augroup RFC
+	autocmd!
+	autocmd BufRead rfc*.txt.gz call s:BufRead()
+augroup END
diff --git a/doc/rfc/rfctags.pl b/doc/rfc/rfctags.pl
new file mode 100644
index 00000000..01324a0d
--- /dev/null
+++ b/doc/rfc/rfctags.pl
@@ -0,0 +1,28 @@
+use strict;
+use warnings;
+use open ':encoding(ISO-8859-1)';
+
+use IO::Uncompress::Gunzip qw($GunzipError);
+
+($,, $\) = ("\t", "\n");
+print '!_TAG_FILE_SORTED', 2, $0; # Promise to pipe this through sort -f
+for my $rfc (<*.txt.gz>) {
+	my $handle = new IO::Uncompress::Gunzip $rfc
+		or die "${rfc}: ${GunzipError}";
+	while (<$handle>) {
+		chomp;
+		# Section headings
+		if (/^([\d.]+|[A-Z][.])\s+([^\t]+)?/) {
+			print $1, $rfc, $.;
+			print $2, $rfc, $. if $2;
+			print $1, $rfc, $. if $1 =~ /^([\d.]+)[.]$/;
+		}
+		# References
+		if (/^\s*(\[[\w-]+\])\s{2,}/) {
+			print $1, $rfc, $.;
+			print "\\$1", $rfc, $.; # vim ^] prepends \ to [
+		}
+	}
+	die "${rfc}: $!" if $!;
+	close $handle;
+}