Yet another round of improvements to manual font selection.

Unify handling of \f and .ft.
Support \f4 (bold+italic).
Support ".ft BI" and ".ft CW" for terminal output.
Support the .ft request in HTML output.
Reject the bogus fonts \f(C1, \f(C2, \f(C3, and \f(CP.
In regress.pl, only strip leading whitespace in math mode.

9 files changed, 68 insertions, 25 deletions

diff --git a/regress/roff/esc/Makefile b/regress/roff/esc/Makefile
index 74f153d5..1be8b179 100644
--- a/regress/roff/esc/Makefile
+++ b/regress/roff/esc/Makefile
@@ -1,7 +1,8 @@
-# $OpenBSD: Makefile,v 1.11 2015/04/29 18:32:57 schwarze Exp $
+# $OpenBSD: Makefile,v 1.15 2018/12/15 23:33:20 schwarze Exp $
 
 REGRESS_TARGETS	 = one two multi B c c_man e f h l O o p w z
 REGRESS_TARGETS	+= ignore invalid unsupp
+HTML_TARGETS	 = f
 LINT_TARGETS	 = B h l O w ignore invalid unsupp
 
 .include <bsd.regress.mk>
diff --git a/regress/roff/esc/f.in b/regress/roff/esc/f.in
index 7d8f9ec0..3eaca449 100644
--- a/regress/roff/esc/f.in
+++ b/regress/roff/esc/f.in
@@ -1,13 +1,12 @@
-.\" $OpenBSD: f.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
-.Dd $Mdocdate$
-.Dt ESC-F 1
-.Os
-.Sh NAME
-.Nm esc-f
-.Nd the roff escape f sequence: font changes
-.Sh DESCRIPTION
-numbers: \f3bold\f2italic\f1roman
-.br
+.\" $OpenBSD: f.in,v 1.4 2018/12/15 23:33:20 schwarze Exp $
+.TH ESC-F 1 "December 15, 2018"
+.SH NAME
+esc-f \- the roff escape f sequence: font changes
+.SH DESCRIPTION
+.nf
+BEGINTEST
+numbers: \f4bolditalic\f3bold\f2italic\f1roman
 letters: \fBbold\fIitalic\fPback\f(BIbolditalic\fRroman
-.br
-multiletter: \f[B]bold\f[I]italic\f[P]back\f[BI]bolditalic\f[R]roman
+multiletter: \f[B]bold\f[]empty\f[I]italic\f[P]back\f[BI]bolditalic\f[R]roman
+typewriter: \f(CWroman\f(CBbold\f(CRroman\f(CIitalic\fRroman
+ENDTEST
diff --git a/regress/roff/esc/f.out_ascii b/regress/roff/esc/f.out_ascii
index fb8520f8..797dbe86 100644
--- a/regress/roff/esc/f.out_ascii
+++ b/regress/roff/esc/f.out_ascii
@@ -1,11 +1,18 @@
 ESC-F(1)                    General Commands Manual                   ESC-F(1)
 
+
+
 NNAAMMEE
-     eesscc--ff - the roff escape f sequence: font changes
+       esc-f - the roff escape f sequence: font changes
 
 DDEESSCCRRIIPPTTIIOONN
-     numbers: bboolldd_i_t_a_l_i_croman
-     letters: bboolldd_i_t_a_l_i_cbbaacckk_bb_oo_ll_dd_ii_tt_aa_ll_ii_ccroman
-     multiletter: bboolldd_i_t_a_l_i_cbbaacckk_bb_oo_ll_dd_ii_tt_aa_ll_ii_ccroman
+       BEGINTEST
+       numbers: _bb_oo_ll_dd_ii_tt_aa_ll_ii_ccbboolldd_i_t_a_l_i_croman
+       letters: bboolldd_i_t_a_l_i_cbbaacckk_bb_oo_ll_dd_ii_tt_aa_ll_ii_ccroman
+       multiletter: bboollddempty_i_t_a_l_i_cback_bb_oo_ll_dd_ii_tt_aa_ll_ii_ccroman
+       typewriter: romanbboollddroman_i_t_a_l_i_croman
+       ENDTEST
+
+
 
-OpenBSD                          July 4, 2017                          OpenBSD
+OpenBSD                        December 15, 2018                      ESC-F(1)
diff --git a/regress/roff/esc/f.out_html b/regress/roff/esc/f.out_html
new file mode 100644
index 00000000..332e0f00
--- /dev/null
+++ b/regress/roff/esc/f.out_html
@@ -0,0 +1,6 @@
+BEGINTEST
+numbers: <b><i>bolditalic</i></b><b>bold</b><i>italic</i>roman
+letters: <b>bold</b><i>italic</i><b>back</b><b><i>bolditalic</i></b>roman
+multiletter: <b>bold</b>empty<i>italic</i>back<b><i>bolditalic</i></b>roman
+typewriter: <span class="Li">roman</span><b>bold</b><span class="Li">roman</span><i>italic</i>roman
+ENDTEST
diff --git a/regress/roff/ft/Makefile b/regress/roff/ft/Makefile
index 5d2accbb..0eadb05d 100644
--- a/regress/roff/ft/Makefile
+++ b/regress/roff/ft/Makefile
@@ -1,6 +1,7 @@
-# $OpenBSD: Makefile,v 1.1 2014/07/05 12:33:54 schwarze Exp $
+# $OpenBSD: Makefile,v 1.3 2018/12/15 23:33:20 schwarze Exp $
 
 REGRESS_TARGETS	= badargs badargs-mdoc
+HTML_TARGETS	= badargs
 LINT_TARGETS	= badargs badargs-mdoc
 
 SKIP_TMAN	= badargs
diff --git a/regress/roff/ft/badargs.in b/regress/roff/ft/badargs.in
index 82269609..ac3ee72a 100644
--- a/regress/roff/ft/badargs.in
+++ b/regress/roff/ft/badargs.in
@@ -1,9 +1,23 @@
-.\" $OpenBSD: badargs.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
-.TH "FT-BADARGS" 1 "July 5, 2014"
+.\" $OpenBSD: badargs.in,v 1.5 2018/12/16 00:10:03 schwarze Exp $
+.TH "FT-BADARGS" 1 "December 15, 2018"
 .SH NAME
 ft-badargs \(en font request with bad arguments
 .SH DESCRIPTION
+BEGINTEST
+.br
 default font
+.ft I
+italic
+.ft BI
+bold italic
+.ft CR
+typeqriter
+.ft CW
+roman
+.ft CB
+bold
+.ft CI
+italic
 .ft B
 bold
 .ft foo
@@ -14,3 +28,6 @@ italic
 back to bold
 .ft
 back to italic
+.ft R
+.br
+ENDTEST
diff --git a/regress/roff/ft/badargs.out_ascii b/regress/roff/ft/badargs.out_ascii
index 30bfed3c..07c2392a 100644
--- a/regress/roff/ft/badargs.out_ascii
+++ b/regress/roff/ft/badargs.out_ascii
@@ -6,8 +6,11 @@ NNAAMMEE
        ft-badargs - font request with bad arguments
 
 DDEESSCCRRIIPPTTIIOONN
-       default font bboolldd ssttiillll bboolldd _i_t_a_l_i_c bbaacckk ttoo bboolldd _b_a_c_k _t_o _i_t_a_l_i_c
+       BEGINTEST
+       default font _i_t_a_l_i_c _bb_oo_ll_dd _ii_tt_aa_ll_ii_cc typeqriter roman bboolldd _i_t_a_l_i_c bboolldd ssttiillll
+       bboolldd _i_t_a_l_i_c bbaacckk ttoo bboolldd _b_a_c_k _t_o _i_t_a_l_i_c
+       ENDTEST
 
 
 
-OpenBSD                          July 5, 2014                    FT-BADARGS(1)
+OpenBSD                        December 15, 2018                 FT-BADARGS(1)
diff --git a/regress/roff/ft/badargs.out_html b/regress/roff/ft/badargs.out_html
new file mode 100644
index 00000000..8b30ab05
--- /dev/null
+++ b/regress/roff/ft/badargs.out_html
@@ -0,0 +1,9 @@
+BEGINTEST
+<br/>
+default font <i></i><i>italic</i> <b><i></i></b><b><i>bold italic</i></b>
+  <span class="Li"></span><span class="Li">typeqriter</span>
+  <span class="Li"></span> <span class="Li">roman</span> <b></b><b>bold</b>
+  <i></i> <i>italic</i> <b></b><b>bold</b> <b>still bold</b>
+  <i></i><i>italic</i> <i></i><i>back to bold</i> <i></i><i>back to italic</i>
+<br/>
+ENDTEST</div>
diff --git a/regress/roff/ft/badargs.out_lint b/regress/roff/ft/badargs.out_lint
index 36c8c0bf..493aaeb4 100644
--- a/regress/roff/ft/badargs.out_lint
+++ b/regress/roff/ft/badargs.out_lint
@@ -1,2 +1,2 @@
-mandoc: badargs.in:11:7: ERROR: skipping excess arguments: ft ... bogus
-mandoc: badargs.in:9:2: WARNING: unknown font, skipping request: ft foo
+mandoc: badargs.in:25:7: ERROR: skipping excess arguments: ft ... bogus
+mandoc: badargs.in:23:2: WARNING: unknown font, skipping request: ft foo