4 files changed, 93 insertions, 0 deletions

diff --git a/regress/char/C/Makefile b/regress/char/C/Makefile
new file mode 100644
index 00000000..3d938fe7
--- /dev/null
+++ b/regress/char/C/Makefile
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1 2022/06/08 13:08:00 schwarze Exp $
+
+REGRESS_TARGETS	 = delim
+LINT_TARGETS	 = delim
+
+.include <bsd.regress.mk>
diff --git a/regress/char/C/delim.in b/regress/char/C/delim.in
new file mode 100644
index 00000000..e048e0a8
--- /dev/null
+++ b/regress/char/C/delim.in
@@ -0,0 +1,51 @@
+.\" $OpenBSD: delim.in,v 1.1 2022/06/08 13:08:00 schwarze Exp $
+.Dd $Mdocdate: June 8 2022 $
+.Dt C-DELIM 1
+.Os
+.Sh NAME
+.Nm C-delim
+.Nd argument delimiters for the C escape sequence
+.Sh DESCRIPTION
+empty: \C''
+.br
+single byte: \C'_'\C'-'
+.br
+two bytes: \C'hy'
+.br
+multiple bytes: \C'integral'
+.Ss Argument delimiters
+unsupported \er: \C\rat\ru
+.br
+ignored \e&: \C\&at\&u
+.br
+useless \e.: \C\.at.u
+.br
+invalid \eG: \C\GatGu
+.br
+special \e-: \C\-at\-u
+.br
+break \ep: \C\pat\pu
+.br
+nospace \ec: \C\cat\cu
+.\".br
+.\"XXX skipchar \ec: \C\zat\zu
+.br
+.ds mystr xatxu
+string expansion: \C\*[mystr]
+.br
+.nr myreg 1341
+register expansion: \C\n[myreg]u
+.br
+ignored \eON: \C\O1at\O2u
+.br
+special character: \C\(hyat\(hyu
+.br
+ignored \eZ\(aqstr\(aq: \C\Z'foo'at\Z'bar'u
+.br
+horizontal motion: \C\h'1'at\h'3'u
+.br
+horizontal line: \C\l'4'at\l'2'u
+.br
+overstrike: \C\o'ab'at\o'cd'u
+.br
+unterminated: \C'at
diff --git a/regress/char/C/delim.out_ascii b/regress/char/C/delim.out_ascii
new file mode 100644
index 00000000..7276d7c2
--- /dev/null
+++ b/regress/char/C/delim.out_ascii
@@ -0,0 +1,30 @@
+C-DELIM(1)                  General Commands Manual                 C-DELIM(1)
+
+NNAAMMEE
+     CC--ddeelliimm - argument delimiters for the C escape sequence
+
+DDEESSCCRRIIPPTTIIOONN
+     empty:
+     single byte: -
+     two bytes: -
+     multiple bytes: <integral>
+
+   AArrgguummeenntt ddeelliimmiitteerrss
+     unsupported \r: @u
+     ignored \&: @u
+     useless \.: @u
+     invalid \G: @u
+     special \-: @u
+     break \p: @u
+     nospace \c: @u
+     string expansion: @u
+     register expansion: 3/4u
+     ignored \ON: @u
+     special character: @u
+     ignored \Z'str': @u
+     horizontal motion: @u
+     horizontal line: @u
+     overstrike: @u
+     unterminated:
+
+OpenBSD                          June 8, 2022                          OpenBSD
diff --git a/regress/char/C/delim.out_lint b/regress/char/C/delim.out_lint
new file mode 100644
index 00000000..2dc23d44
--- /dev/null
+++ b/regress/char/C/delim.out_lint
@@ -0,0 +1,6 @@
+mandoc: delim.in:9:8: ERROR: invalid special character: \C''
+mandoc: delim.in:11:14: ERROR: invalid special character: \C'_'
+mandoc: delim.in:17:20: UNSUPP: unsupported escape sequence: \r
+mandoc: delim.in:17:24: UNSUPP: unsupported escape sequence: \r
+mandoc: delim.in:23:16: WARNING: undefined escape, printing literally: \G
+mandoc: delim.in:51:15: ERROR: incomplete escape sequence: \C'at