mirror of
https://github.com/netsurf-browser/netsurf
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51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
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/*
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* Copyright 2020 Vincent Sanders <vince@netsurf-browser.org>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file
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* HTML Box tree normalise interface.
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*/
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#ifndef NETSURF_HTML_BOX_NORMALISE_H
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#define NETSURF_HTML_BOX_NORMALISE_H
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/**
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* Ensure the box tree is correctly nested by adding and removing nodes.
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*
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* \param block box of type BLOCK, INLINE_BLOCK, or TABLE_CELL
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* \param root root box of document
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* \param c content of boxes
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* \return true on success, false on memory exhaustion
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*
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* The tree is modified to satisfy the following:
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* \code
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* parent permitted child nodes
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* BLOCK, INLINE_BLOCK BLOCK, INLINE_CONTAINER, TABLE
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* INLINE_CONTAINER INLINE, INLINE_BLOCK, FLOAT_LEFT, FLOAT_RIGHT, BR, TEXT
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* INLINE, TEXT none
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* TABLE at least 1 TABLE_ROW_GROUP
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* TABLE_ROW_GROUP at least 1 TABLE_ROW
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* TABLE_ROW at least 1 TABLE_CELL
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* TABLE_CELL BLOCK, INLINE_CONTAINER, TABLE (same as BLOCK)
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* FLOAT_(LEFT|RIGHT) exactly 1 BLOCK or TABLE
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* \endcode
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*/
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bool box_normalise_block(struct box *block, const struct box *root, struct html_content *c);
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#endif
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