From fbc87aa03d8f797ab884fc9f06443bd748a82ca1 Mon Sep 17 00:00:00 2001 From: Ingo Schwarze Date: Fri, 10 Aug 2018 04:41:25 +0000 Subject: Implement the roff(7) .nop (no operation) request. Examples of manual pages (ab)using it include groff(7), chem(1), groff_mom(7), and groff_hdtbl(7). --- roff.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'roff.c') diff --git a/roff.c b/roff.c index 86e145e3..fe703f5a 100644 --- a/roff.c +++ b/roff.c @@ -1,4 +1,4 @@ -/* $Id: roff.c,v 1.329 2018/08/01 15:40:17 schwarze Exp $ */ +/* $Id: roff.c,v 1.330 2018/08/10 04:41:25 schwarze Exp $ */ /* * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons * Copyright (c) 2010-2015, 2017, 2018 Ingo Schwarze @@ -197,6 +197,7 @@ static enum rofferr roff_line_ignore(ROFF_ARGS); static void roff_man_alloc1(struct roff_man *); static void roff_man_free1(struct roff_man *); static enum rofferr roff_manyarg(ROFF_ARGS); +static enum rofferr roff_nop(ROFF_ARGS); static enum rofferr roff_nr(ROFF_ARGS); static enum rofferr roff_onearg(ROFF_ARGS); static enum roff_tok roff_parse(struct roff *, char *, int *, @@ -490,7 +491,7 @@ static struct roffmac roffs[TOKEN_NONE] = { { roff_line_ignore, NULL, NULL, 0 }, /* nhychar */ { roff_unsupp, NULL, NULL, 0 }, /* nm */ { roff_unsupp, NULL, NULL, 0 }, /* nn */ - { roff_unsupp, NULL, NULL, 0 }, /* nop */ + { roff_nop, NULL, NULL, 0 }, /* nop */ { roff_nr, NULL, NULL, 0 }, /* nr */ { roff_unsupp, NULL, NULL, 0 }, /* nrf */ { roff_line_ignore, NULL, NULL, 0 }, /* nroff */ @@ -3160,6 +3161,15 @@ roff_eo(ROFF_ARGS) return ROFF_IGN; } +static enum rofferr +roff_nop(ROFF_ARGS) +{ + while (buf->buf[pos] == ' ') + pos++; + *offs = pos; + return ROFF_RERUN; +} + static enum rofferr roff_tr(ROFF_ARGS) { -- cgit v1.2.3