2017-06-08 19:29:07 +00:00
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/* $Id: man_macro.c,v 1.120 2017/05/05 15:17:32 schwarze Exp $ */
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2012-10-18 09:55:16 +00:00
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/*
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* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
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2017-06-08 19:29:07 +00:00
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* Copyright (c) 2012-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
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2014-01-31 19:59:03 +00:00
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* Copyright (c) 2013 Franco Fichtner <franco@lastsummer.de>
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2012-10-18 09:55:16 +00:00
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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2016-01-15 23:08:59 +00:00
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
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2012-10-18 09:55:16 +00:00
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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2016-01-15 23:08:59 +00:00
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
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2012-10-18 09:55:16 +00:00
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "config.h"
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2014-12-02 07:34:06 +00:00
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#include <sys/types.h>
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2012-10-18 09:55:16 +00:00
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#include <assert.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <string.h>
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#include "mandoc.h"
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2016-01-15 23:08:59 +00:00
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#include "roff.h"
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#include "man.h"
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2012-10-18 09:55:16 +00:00
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#include "libmandoc.h"
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2016-01-15 23:08:59 +00:00
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#include "roff_int.h"
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2012-10-18 09:55:16 +00:00
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#include "libman.h"
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2014-12-02 07:34:06 +00:00
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static void blk_close(MACRO_PROT_ARGS);
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static void blk_exp(MACRO_PROT_ARGS);
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static void blk_imp(MACRO_PROT_ARGS);
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static void in_line_eoln(MACRO_PROT_ARGS);
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2016-01-15 23:08:59 +00:00
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static int man_args(struct roff_man *, int,
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2012-10-18 09:55:16 +00:00
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int *, char *, char **);
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2017-06-08 19:29:07 +00:00
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static void rew_scope(struct roff_man *, enum roff_tok);
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2012-10-18 09:55:16 +00:00
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2017-06-08 19:29:07 +00:00
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const struct man_macro __man_macros[MAN_MAX - MAN_TH] = {
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2012-10-18 09:55:16 +00:00
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{ in_line_eoln, MAN_BSCOPE }, /* TH */
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{ blk_imp, MAN_BSCOPE | MAN_SCOPED }, /* SH */
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{ blk_imp, MAN_BSCOPE | MAN_SCOPED }, /* SS */
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2016-01-15 23:08:59 +00:00
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{ blk_imp, MAN_BSCOPE | MAN_SCOPED }, /* TP */
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2012-10-18 09:55:16 +00:00
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{ blk_imp, MAN_BSCOPE }, /* LP */
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{ blk_imp, MAN_BSCOPE }, /* PP */
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{ blk_imp, MAN_BSCOPE }, /* P */
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{ blk_imp, MAN_BSCOPE }, /* IP */
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{ blk_imp, MAN_BSCOPE }, /* HP */
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2014-12-02 07:34:06 +00:00
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{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* SM */
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{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* SB */
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2012-10-18 09:55:16 +00:00
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{ in_line_eoln, 0 }, /* BI */
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{ in_line_eoln, 0 }, /* IB */
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{ in_line_eoln, 0 }, /* BR */
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{ in_line_eoln, 0 }, /* RB */
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2014-12-02 07:34:06 +00:00
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{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* R */
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{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* B */
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{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* I */
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2012-10-18 09:55:16 +00:00
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{ in_line_eoln, 0 }, /* IR */
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{ in_line_eoln, 0 }, /* RI */
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2016-01-15 23:08:59 +00:00
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{ in_line_eoln, MAN_NSCOPED }, /* nf */
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{ in_line_eoln, MAN_NSCOPED }, /* fi */
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2015-03-02 16:45:41 +00:00
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{ blk_close, MAN_BSCOPE }, /* RE */
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2016-01-15 23:08:59 +00:00
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{ blk_exp, MAN_BSCOPE }, /* RS */
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2012-10-18 09:55:16 +00:00
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{ in_line_eoln, 0 }, /* DT */
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{ in_line_eoln, 0 }, /* UC */
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2016-01-15 23:08:59 +00:00
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{ in_line_eoln, MAN_NSCOPED }, /* PD */
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2012-10-18 09:55:16 +00:00
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{ in_line_eoln, 0 }, /* AT */
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{ in_line_eoln, 0 }, /* in */
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{ in_line_eoln, 0 }, /* OP */
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2014-01-31 19:59:03 +00:00
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{ in_line_eoln, MAN_BSCOPE }, /* EX */
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{ in_line_eoln, MAN_BSCOPE }, /* EE */
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2016-01-15 23:08:59 +00:00
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{ blk_exp, MAN_BSCOPE }, /* UR */
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2015-03-02 16:45:41 +00:00
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{ blk_close, MAN_BSCOPE }, /* UE */
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2012-10-18 09:55:16 +00:00
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};
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2017-06-08 19:29:07 +00:00
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const struct man_macro *const man_macros = __man_macros - MAN_TH;
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2012-10-18 09:55:16 +00:00
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2014-12-02 07:34:06 +00:00
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void
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2016-01-15 23:08:59 +00:00
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man_unscope(struct roff_man *man, const struct roff_node *to)
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2012-10-18 09:55:16 +00:00
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{
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2016-01-15 23:08:59 +00:00
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struct roff_node *n;
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2012-10-18 09:55:16 +00:00
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2014-11-22 18:08:25 +00:00
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to = to->parent;
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n = man->last;
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while (n != to) {
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/* Reached the end of the document? */
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2017-01-21 13:01:39 +00:00
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if (to == NULL && ! (n->flags & NODE_VALID)) {
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2014-11-22 18:08:25 +00:00
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if (man->flags & (MAN_BLINE | MAN_ELINE) &&
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man_macros[n->tok].flags & MAN_SCOPED) {
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mandoc_vmsg(MANDOCERR_BLK_LINE,
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man->parse, n->line, n->pos,
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2017-06-08 19:29:07 +00:00
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"EOF breaks %s", roff_name[n->tok]);
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2014-11-22 18:08:25 +00:00
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if (man->flags & MAN_ELINE)
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man->flags &= ~MAN_ELINE;
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else {
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2016-01-15 23:08:59 +00:00
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assert(n->type == ROFFT_HEAD);
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2014-11-22 18:08:25 +00:00
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n = n->parent;
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man->flags &= ~MAN_BLINE;
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}
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man->last = n;
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n = n->parent;
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2016-01-15 23:08:59 +00:00
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roff_node_delete(man, man->last);
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2014-11-22 18:08:25 +00:00
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continue;
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}
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2016-01-15 23:08:59 +00:00
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if (n->type == ROFFT_BLOCK &&
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man_macros[n->tok].fp == blk_exp)
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2014-11-22 18:08:25 +00:00
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mandoc_msg(MANDOCERR_BLK_NOEND,
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man->parse, n->line, n->pos,
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2017-06-08 19:29:07 +00:00
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roff_name[n->tok]);
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2014-11-22 18:08:25 +00:00
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}
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2012-10-18 09:55:16 +00:00
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/*
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2014-11-22 18:08:25 +00:00
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* We might delete the man->last node
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* in the post-validation phase.
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* Save a pointer to the parent such that
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* we know where to continue the iteration.
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2012-10-18 09:55:16 +00:00
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*/
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2014-12-02 07:34:06 +00:00
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2014-11-22 18:08:25 +00:00
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man->last = n;
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n = n->parent;
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2017-01-21 13:01:39 +00:00
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man->last->flags |= NODE_VALID;
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2012-10-18 09:55:16 +00:00
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}
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2014-12-02 07:34:06 +00:00
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/*
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* If we ended up at the parent of the node we were
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* supposed to rewind to, that means the target node
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* got deleted, so add the next node we parse as a child
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* of the parent instead of as a sibling of the target.
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*/
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man->next = (man->last == to) ?
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2016-01-15 23:08:59 +00:00
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ROFF_NEXT_CHILD : ROFF_NEXT_SIBLING;
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2012-10-18 09:55:16 +00:00
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}
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/*
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* Rewinding entails ascending the parse tree until a coherent point,
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* for example, the `SH' macro will close out any intervening `SS'
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* scopes. When a scope is closed, it must be validated and actioned.
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*/
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2014-12-02 07:34:06 +00:00
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static void
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2017-06-08 19:29:07 +00:00
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rew_scope(struct roff_man *man, enum roff_tok tok)
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2012-10-18 09:55:16 +00:00
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{
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2016-01-15 23:08:59 +00:00
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struct roff_node *n;
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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/* Preserve empty paragraphs before RS. */
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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n = man->last;
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if (tok == MAN_RS && n->child == NULL &&
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(n->tok == MAN_P || n->tok == MAN_PP || n->tok == MAN_LP))
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return;
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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for (;;) {
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if (n->type == ROFFT_ROOT)
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return;
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2017-01-21 13:01:39 +00:00
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if (n->flags & NODE_VALID) {
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2016-01-15 23:08:59 +00:00
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n = n->parent;
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continue;
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}
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if (n->type != ROFFT_BLOCK) {
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if (n->parent->type == ROFFT_ROOT) {
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man_unscope(man, n);
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return;
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} else {
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n = n->parent;
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continue;
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}
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}
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if (tok != MAN_SH && (n->tok == MAN_SH ||
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(tok != MAN_SS && (n->tok == MAN_SS ||
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man_macros[n->tok].fp == blk_exp))))
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return;
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man_unscope(man, n);
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n = man->last;
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}
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2012-10-18 09:55:16 +00:00
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}
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/*
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* Close out a generic explicit macro.
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*/
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2014-12-02 07:34:06 +00:00
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void
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2012-10-18 09:55:16 +00:00
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blk_close(MACRO_PROT_ARGS)
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{
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2017-06-08 19:29:07 +00:00
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enum roff_tok ntok;
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2016-01-15 23:08:59 +00:00
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const struct roff_node *nn;
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2015-03-02 16:45:41 +00:00
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char *p;
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int nrew, target;
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2012-10-18 09:55:16 +00:00
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2015-03-02 16:45:41 +00:00
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nrew = 1;
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2012-10-18 09:55:16 +00:00
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switch (tok) {
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2014-11-22 18:08:25 +00:00
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case MAN_RE:
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2012-10-18 09:55:16 +00:00
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ntok = MAN_RS;
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2015-03-02 16:45:41 +00:00
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if ( ! man_args(man, line, pos, buf, &p))
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break;
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for (nn = man->last->parent; nn; nn = nn->parent)
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2016-01-15 23:08:59 +00:00
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if (nn->tok == ntok && nn->type == ROFFT_BLOCK)
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2015-03-02 16:45:41 +00:00
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nrew++;
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target = strtol(p, &p, 10);
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if (*p != '\0')
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mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse,
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line, p - buf, "RE ... %s", p);
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if (target == 0)
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target = 1;
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nrew -= target;
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if (nrew < 1) {
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mandoc_vmsg(MANDOCERR_RE_NOTOPEN, man->parse,
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line, ppos, "RE %d", target);
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return;
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}
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2012-10-18 09:55:16 +00:00
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break;
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2014-11-22 18:08:25 +00:00
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case MAN_UE:
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2014-01-31 19:59:03 +00:00
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ntok = MAN_UR;
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break;
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2012-10-18 09:55:16 +00:00
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default:
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abort();
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}
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2014-01-31 19:59:03 +00:00
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for (nn = man->last->parent; nn; nn = nn->parent)
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2016-01-15 23:08:59 +00:00
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if (nn->tok == ntok && nn->type == ROFFT_BLOCK && ! --nrew)
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2012-10-18 09:55:16 +00:00
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break;
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2014-12-02 07:34:06 +00:00
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if (nn == NULL) {
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2014-11-22 18:08:25 +00:00
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mandoc_msg(MANDOCERR_BLK_NOTOPEN, man->parse,
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2017-06-08 19:29:07 +00:00
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line, ppos, roff_name[tok]);
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2016-01-15 23:08:59 +00:00
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rew_scope(man, MAN_PP);
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2015-03-02 16:45:41 +00:00
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} else {
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line = man->last->line;
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ppos = man->last->pos;
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ntok = man->last->tok;
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2014-11-22 18:08:25 +00:00
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man_unscope(man, nn);
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2015-03-02 16:45:41 +00:00
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/* Move a trailing paragraph behind the block. */
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if (ntok == MAN_LP || ntok == MAN_PP || ntok == MAN_P) {
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*pos = strlen(buf);
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blk_imp(man, ntok, line, ppos, pos, buf);
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}
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}
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2012-10-18 09:55:16 +00:00
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}
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2014-12-02 07:34:06 +00:00
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void
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2012-10-18 09:55:16 +00:00
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blk_exp(MACRO_PROT_ARGS)
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{
|
2016-01-15 23:08:59 +00:00
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struct roff_node *head;
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2012-10-18 09:55:16 +00:00
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char *p;
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2015-03-02 16:45:41 +00:00
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int la;
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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rew_scope(man, tok);
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roff_block_alloc(man, line, ppos, tok);
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head = roff_head_alloc(man, line, ppos, tok);
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2012-10-18 09:55:16 +00:00
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2015-03-02 16:45:41 +00:00
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la = *pos;
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if (man_args(man, line, pos, buf, &p))
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2016-01-15 23:08:59 +00:00
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roff_word_alloc(man, line, la, p);
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2012-10-18 09:55:16 +00:00
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2015-03-02 16:45:41 +00:00
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if (buf[*pos] != '\0')
|
2017-06-08 19:29:07 +00:00
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mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse, line,
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*pos, "%s ... %s", roff_name[tok], buf + *pos);
|
2014-01-31 19:59:03 +00:00
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2015-03-02 16:45:41 +00:00
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man_unscope(man, head);
|
2016-01-15 23:08:59 +00:00
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roff_body_alloc(man, line, ppos, tok);
|
2012-10-18 09:55:16 +00:00
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}
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/*
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2016-01-15 23:08:59 +00:00
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* Parse an implicit-block macro. These contain a ROFFT_HEAD and a
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* ROFFT_BODY contained within a ROFFT_BLOCK. Rules for closing out other
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2012-10-18 09:55:16 +00:00
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* scopes, such as `SH' closing out an `SS', are defined in the rew
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* routines.
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*/
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2014-12-02 07:34:06 +00:00
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void
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2012-10-18 09:55:16 +00:00
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blk_imp(MACRO_PROT_ARGS)
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{
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int la;
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char *p;
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2016-01-15 23:08:59 +00:00
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struct roff_node *n;
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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rew_scope(man, tok);
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n = roff_block_alloc(man, line, ppos, tok);
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if (n->tok == MAN_SH || n->tok == MAN_SS)
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man->flags &= ~MAN_LITERAL;
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n = roff_head_alloc(man, line, ppos, tok);
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2012-10-18 09:55:16 +00:00
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/* Add line arguments. */
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for (;;) {
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la = *pos;
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2014-01-31 19:59:03 +00:00
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if ( ! man_args(man, line, pos, buf, &p))
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2012-10-18 09:55:16 +00:00
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break;
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2016-01-15 23:08:59 +00:00
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roff_word_alloc(man, line, la, p);
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2012-10-18 09:55:16 +00:00
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}
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2016-01-15 23:08:59 +00:00
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/*
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* For macros having optional next-line scope,
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* keep the head open if there were no arguments.
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* For `TP', always keep the head open.
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*/
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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if (man_macros[tok].flags & MAN_SCOPED &&
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(tok == MAN_TP || n == man->last)) {
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man->flags |= MAN_BLINE;
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return;
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2012-10-18 09:55:16 +00:00
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}
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2016-01-15 23:08:59 +00:00
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/* Close out the head and open the body. */
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man_unscope(man, n);
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roff_body_alloc(man, line, ppos, tok);
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2012-10-18 09:55:16 +00:00
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}
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2014-12-02 07:34:06 +00:00
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void
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2012-10-18 09:55:16 +00:00
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in_line_eoln(MACRO_PROT_ARGS)
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{
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int la;
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char *p;
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2016-01-15 23:08:59 +00:00
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struct roff_node *n;
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2012-10-18 09:55:16 +00:00
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|
2016-01-15 23:08:59 +00:00
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roff_elem_alloc(man, line, ppos, tok);
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2014-01-31 19:59:03 +00:00
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n = man->last;
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2012-10-18 09:55:16 +00:00
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for (;;) {
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2017-06-08 19:29:07 +00:00
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if (buf[*pos] != '\0' && (tok == MAN_fi || tok == MAN_nf)) {
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2015-03-02 16:45:41 +00:00
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mandoc_vmsg(MANDOCERR_ARG_SKIP,
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man->parse, line, *pos, "%s %s",
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2017-06-08 19:29:07 +00:00
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roff_name[tok], buf + *pos);
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2015-03-02 16:45:41 +00:00
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break;
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}
|
2017-06-08 19:29:07 +00:00
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if (buf[*pos] != '\0' && man->last != n && tok == MAN_PD) {
|
2015-03-02 16:45:41 +00:00
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mandoc_vmsg(MANDOCERR_ARG_EXCESS,
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man->parse, line, *pos, "%s ... %s",
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2017-06-08 19:29:07 +00:00
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roff_name[tok], buf + *pos);
|
2015-03-02 16:45:41 +00:00
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break;
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}
|
2012-10-18 09:55:16 +00:00
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la = *pos;
|
2014-01-31 19:59:03 +00:00
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if ( ! man_args(man, line, pos, buf, &p))
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2012-10-18 09:55:16 +00:00
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break;
|
2014-12-02 07:34:06 +00:00
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if (man_macros[tok].flags & MAN_JOIN &&
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2016-01-15 23:08:59 +00:00
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man->last->type == ROFFT_TEXT)
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roff_word_append(man, p);
|
2014-12-02 07:34:06 +00:00
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else
|
2016-01-15 23:08:59 +00:00
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roff_word_alloc(man, line, la, p);
|
2012-10-18 09:55:16 +00:00
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}
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|
2014-01-31 19:59:03 +00:00
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|
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/*
|
2017-01-21 13:01:39 +00:00
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* Append NODE_EOS in case the last snipped argument
|
2014-01-31 19:59:03 +00:00
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* ends with a dot, e.g. `.IR syslog (3).'
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*/
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if (n != man->last &&
|
2014-11-22 18:08:25 +00:00
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mandoc_eos(man->last->string, strlen(man->last->string)))
|
2017-01-21 13:01:39 +00:00
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man->last->flags |= NODE_EOS;
|
2014-01-31 19:59:03 +00:00
|
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|
2012-10-18 09:55:16 +00:00
|
|
|
/*
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|
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* If no arguments are specified and this is MAN_SCOPED (i.e.,
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* next-line scoped), then set our mode to indicate that we're
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* waiting for terms to load into our context.
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*/
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|
2014-12-02 07:34:06 +00:00
|
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if (n == man->last && man_macros[tok].flags & MAN_SCOPED) {
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assert( ! (man_macros[tok].flags & MAN_NSCOPED));
|
2014-01-31 19:59:03 +00:00
|
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|
man->flags |= MAN_ELINE;
|
2014-12-02 07:34:06 +00:00
|
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|
return;
|
2012-10-18 09:55:16 +00:00
|
|
|
}
|
|
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|
|
2016-01-15 23:08:59 +00:00
|
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|
assert(man->last->type != ROFFT_ROOT);
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|
man->next = ROFF_NEXT_SIBLING;
|
2014-11-22 18:08:25 +00:00
|
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|
|
2016-01-15 23:08:59 +00:00
|
|
|
/* Rewind our element scope. */
|
2012-10-18 09:55:16 +00:00
|
|
|
|
2014-01-31 19:59:03 +00:00
|
|
|
for ( ; man->last; man->last = man->last->parent) {
|
2016-01-15 23:08:59 +00:00
|
|
|
man_state(man, man->last);
|
2014-01-31 19:59:03 +00:00
|
|
|
if (man->last == n)
|
2012-10-18 09:55:16 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-12-02 07:34:06 +00:00
|
|
|
void
|
2016-01-15 23:08:59 +00:00
|
|
|
man_endparse(struct roff_man *man)
|
2012-10-18 09:55:16 +00:00
|
|
|
{
|
|
|
|
|
2014-12-02 07:34:06 +00:00
|
|
|
man_unscope(man, man->first);
|
2016-01-15 23:08:59 +00:00
|
|
|
man->flags &= ~MAN_LITERAL;
|
2012-10-18 09:55:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2016-01-15 23:08:59 +00:00
|
|
|
man_args(struct roff_man *man, int line, int *pos, char *buf, char **v)
|
2012-10-18 09:55:16 +00:00
|
|
|
{
|
|
|
|
char *start;
|
|
|
|
|
|
|
|
assert(*pos);
|
|
|
|
*v = start = buf + *pos;
|
|
|
|
assert(' ' != *start);
|
|
|
|
|
|
|
|
if ('\0' == *start)
|
2016-01-15 23:08:59 +00:00
|
|
|
return 0;
|
2012-10-18 09:55:16 +00:00
|
|
|
|
2014-01-31 19:59:03 +00:00
|
|
|
*v = mandoc_getarg(man->parse, v, line, pos);
|
2016-01-15 23:08:59 +00:00
|
|
|
return 1;
|
2012-10-18 09:55:16 +00:00
|
|
|
}
|