Use mandoc -T html for about-filter

This also makes source-filter show mdoc source again and removes the
dependency on ttpre entirely. I copied in the inline stylesheet mandoc
outputs without -O fragment and added some customizations.

5 files changed, 29 insertions, 26 deletions

diff --git a/www/git.causal.agency/.gitignore b/www/git.causal.agency/.gitignore
index d53ebc26..8d20f25d 100644
--- a/www/git.causal.agency/.gitignore
+++ b/www/git.causal.agency/.gitignore
@@ -1,4 +1,3 @@
 about-filter
 hi
 source-filter
-ttpre
diff --git a/www/git.causal.agency/Makefile b/www/git.causal.agency/Makefile
index 8b87920f..28e08ba5 100644
--- a/www/git.causal.agency/Makefile
+++ b/www/git.causal.agency/Makefile
@@ -3,20 +3,16 @@ WWW = /usr/local/www/cgit
 LIBEXEC = /usr/local/libexec
 
 BIN = ../../bin
-BINS = about-filter source-filter ttpre hi
+BINS = about-filter source-filter hi
 
 install: cgitrc custom.css ${BINS}
 	install -m 644 cgitrc ${ETC}
 	install -m 644 custom.css ${WWW}
 	install ${BINS} ${LIBEXEC}
 
-ttpre hi:
+hi: ${BIN}/hi.c
 	${MAKE} -C ${BIN} $@
 	cp ${BIN}/$@ $@
 
-ttpre: ${BIN}/ttpre.c
-
-hi: ${BIN}/hi.c
-
 clean:
 	rm -f ${BINS}
diff --git a/www/git.causal.agency/about-filter.sh b/www/git.causal.agency/about-filter.sh
index 26a52648..c7161006 100644
--- a/www/git.causal.agency/about-filter.sh
+++ b/www/git.causal.agency/about-filter.sh
@@ -1,12 +1,8 @@
 #!/bin/sh
 
-export LANG=en_US.UTF-8
 case "$1" in
 	(*.[1-9])
-		/usr/bin/mandoc \
-			| /usr/local/libexec/ttpre \
-			| /usr/bin/sed -E \
-				's,([a-z0-9_-]+)[(]([1-9])[)],<a href="\1.\2">&</a>,g'
+		/usr/bin/mandoc -T html -O fragment,man=%N.%S,includes=../tree/%I
 		;;
 	(*)
 		exec /usr/local/libexec/hi -l text -f html
diff --git a/www/git.causal.agency/custom.css b/www/git.causal.agency/custom.css
index 9d7b3a0b..921cf09e 100644
--- a/www/git.causal.agency/custom.css
+++ b/www/git.causal.agency/custom.css
@@ -39,16 +39,17 @@ div#cgit table.list tr.nohover-highlight:hover:nth-child(even) {
 	background: inherit;
 }
 
-div#cgit table.blob td.linenumbers:nth-last-child(3) {
-	display: none;
-}
-
 div#cgit table.blob td.linenumbers a:target {
 	color: goldenrod;
 	text-decoration: underline;
 	outline: none;
 }
 
+div#cgit div#summary {
+	max-width: 80ch;
+}
+
+/* from hi(1) */
 div#cgit .hi.Keyword { color: dimgray; }
 div#cgit .hi.Macro { color: green; }
 div#cgit .hi.Tag { color: inherit; text-decoration: underline; }
@@ -60,3 +61,23 @@ div#cgit .hi.Todo { color: navy; font-weight: bold; }
 div#cgit .hi.DiffOld { color: red; }
 div#cgit .hi.DiffNew { color: green; }
 div#cgit .hi.Tag:target { color: goldenrod; outline: none; }
+
+/* from mandoc(1) */
+table.head, table.foot { width: 100%; }
+td.head-rtitle, td.foot-os { text-align: right; }
+td.head-vol { text-align: center; }
+div.Pp { margin: 1ex 0ex; }
+div.Nd, div.Bf, div.Op { display: inline; }
+span.Pa, span.Ad { font-style: italic; }
+span.Ms { font-weight: bold; }
+dl.Bl-diag > dt { font-weight: bold; }
+code.Nm, code.Fl, code.Cm, code.Ic, code.In, code.Fd, code.Fn,
+code.Cd { font-weight: bold; font-family: inherit; }
+
+table.Nm td:first-child { padding-right: 1ch; }
+code.Fl { white-space: nowrap; }
+dl.Bl-tag dt { margin-top: 1em; }
+div.Bd-indent { margin-left: 4ch; }
+table.foot { margin-top: 1em; }
+
+div#cgit a.permalink { color: inherit; }
diff --git a/www/git.causal.agency/source-filter.sh b/www/git.causal.agency/source-filter.sh
index 5c5eb734..4febc2e0 100644
--- a/www/git.causal.agency/source-filter.sh
+++ b/www/git.causal.agency/source-filter.sh
@@ -1,12 +1,3 @@
 #!/bin/sh
 
-export LANG=en_US.UTF-8
-case "$1" in
-	(*.[1-9])
-		/usr/local/libexec/about-filter "$@"
-		printf '</code></pre></td><td><pre><code>'
-		;;
-	(*)
-		exec /usr/local/libexec/hi -t -n "$1" -f html -o anchor
-		;;
-esac
+exec /usr/local/libexec/hi -t -n "$1" -f html -o anchor