mirror of
https://github.com/jmcnamara/libxlsxwriter
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87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/*
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* libxlsxwriter
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*
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* SPDX-License-Identifier: BSD-2-Clause
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* Copyright 2014-2025, John McNamara, jmcnamara@cpan.org.
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*
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* shared_strings - A libxlsxwriter library for creating Excel XLSX
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* sst files.
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*
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*/
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#ifndef __LXW_SST_H__
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#define __LXW_SST_H__
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#include <string.h>
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#include <stdint.h>
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#include "common.h"
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/* Define a tree.h RB structure for storing shared strings. */
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RB_HEAD(sst_rb_tree, sst_element);
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/* Define a queue.h structure for storing shared strings in insertion order. */
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STAILQ_HEAD(sst_order_list, sst_element);
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/* Wrapper around RB_GENERATE_STATIC from tree.h to avoid unused function
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* warnings and to avoid portability issues with the _unused attribute. */
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#define LXW_RB_GENERATE_ELEMENT(name, type, field, cmp) \
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RB_GENERATE_INSERT_COLOR(name, type, field, static) \
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RB_GENERATE_INSERT(name, type, field, cmp, static) \
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/* Add unused struct to allow adding a semicolon */ \
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struct lxw_rb_generate_element{int unused;}
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/*
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* Elements of the SST table. They contain pointers to allow them to
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* be stored in a RB tree and also pointers to track the insertion order
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* in a separate list.
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*/
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struct sst_element {
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uint32_t index;
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char *string;
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uint8_t is_rich_string;
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STAILQ_ENTRY (sst_element) sst_order_pointers;
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RB_ENTRY (sst_element) sst_tree_pointers;
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};
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/*
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* Struct to represent a sst.
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*/
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typedef struct lxw_sst {
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FILE *file;
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uint32_t string_count;
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uint32_t unique_count;
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struct sst_order_list *order_list;
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struct sst_rb_tree *rb_tree;
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} lxw_sst;
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/* *INDENT-OFF* */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* *INDENT-ON* */
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lxw_sst *lxw_sst_new(void);
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void lxw_sst_free(lxw_sst *sst);
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struct sst_element *lxw_get_sst_index(lxw_sst *sst, const char *string,
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uint8_t is_rich_string);
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void lxw_sst_assemble_xml_file(lxw_sst *self);
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/* Declarations required for unit testing. */
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#ifdef TESTING
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STATIC void _sst_xml_declaration(lxw_sst *self);
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#endif /* TESTING */
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/* *INDENT-OFF* */
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#ifdef __cplusplus
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}
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#endif
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/* *INDENT-ON* */
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#endif /* __LXW_SST_H__ */
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