File: [cvsweb.bsd.lv] / docbook2mdoc / reorg.c (download)
Revision 1.1, Sun Apr 28 17:11:53 2019 UTC (5 years, 1 month ago) by schwarze
Branch: MAIN
Start a reorg module, to edit and move around nodes between parsing
and formatting. This helps because using queue macros is prone to
bugs, but inspecting the resulting trees with a C debugger is quite
hard. Using -T tree is much easier.
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/* $Id: reorg.c,v 1.1 2019/04/28 17:11:53 schwarze Exp $ */
/*
* Copyright (c) 2019 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "node.h"
#include "reorg.h"
/*
* The implementation of the tree reorganizer.
*/
void
ptree_reorg(struct ptree *tree)
{
struct pnode *date, *descr, *name, *root, *vol, *nc;
if ((root = tree->root) == NULL)
return;
/* Collect prologue information. */
if ((date = pnode_takefirst(root, NODE_PUBDATE)) == NULL &&
(date = pnode_takefirst(root, NODE_DATE)) == NULL) {
date = pnode_alloc(NULL);
pnode_alloc_text(date, "$Mdocdate" "$");
}
date->node = NODE_DATE;
date->parent = root;
name = vol = NULL;
if ((nc = pnode_findfirst(root, NODE_REFMETA)) != NULL) {
name = pnode_takefirst(nc, NODE_REFENTRYTITLE);
vol = pnode_takefirst(nc, NODE_MANVOLNUM);
}
if (name == NULL) {
name = pnode_alloc(NULL);
name->node = NODE_REFENTRYTITLE;
name->parent = root;
pnode_alloc_text(name,
pnode_getattr_raw(root, ATTRKEY_ID, "UNKNOWN"));
}
if (vol == NULL) {
vol = pnode_alloc(NULL);
vol->node = NODE_MANVOLNUM;
vol->parent = root;
pnode_alloc_text(vol, "1");
}
/* Insert prologue information at the beginning. */
if (pnode_findfirst(root, NODE_REFNAMEDIV) == NULL &&
((nc = pnode_findfirst(root, NODE_BOOKINFO)) != NULL ||
(nc = pnode_findfirst(root, NODE_REFENTRYINFO)) != NULL) &&
(descr = pnode_takefirst(nc, NODE_TITLE)) != NULL)
TAILQ_INSERT_HEAD(&root->childq, descr, child);
TAILQ_INSERT_HEAD(&root->childq, vol, child);
TAILQ_INSERT_HEAD(&root->childq, name, child);
TAILQ_INSERT_HEAD(&root->childq, date, child);
}