/* * libxlsxwriter * * Copyright 2014-2022, John McNamara, jmcnamara@cpan.org. See LICENSE.txt. * * shared_strings - A libxlsxwriter library for creating Excel XLSX * sst files. * */ #ifndef __LXW_SST_H__ #define __LXW_SST_H__ #include #include #include "common.h" /* Define a tree.h RB structure for storing shared strings. */ RB_HEAD(sst_rb_tree, sst_element); /* Define a queue.h structure for storing shared strings in insertion order. */ STAILQ_HEAD(sst_order_list, sst_element); /* Wrapper around RB_GENERATE_STATIC from tree.h to avoid unused function * warnings and to avoid portability issues with the _unused attribute. */ #define LXW_RB_GENERATE_ELEMENT(name, type, field, cmp) \ RB_GENERATE_INSERT_COLOR(name, type, field, static) \ RB_GENERATE_INSERT(name, type, field, cmp, static) \ /* Add unused struct to allow adding a semicolon */ \ struct lxw_rb_generate_element{int unused;} /* * Elements of the SST table. They contain pointers to allow them to * be stored in a RB tree and also pointers to track the insertion order * in a separate list. */ struct sst_element { uint32_t index; char *string; uint8_t is_rich_string; STAILQ_ENTRY (sst_element) sst_order_pointers; RB_ENTRY (sst_element) sst_tree_pointers; }; /* * Struct to represent a sst. */ typedef struct lxw_sst { FILE *file; uint32_t string_count; uint32_t unique_count; struct sst_order_list *order_list; struct sst_rb_tree *rb_tree; } lxw_sst; /* *INDENT-OFF* */ #ifdef __cplusplus extern "C" { #endif /* *INDENT-ON* */ lxw_sst *lxw_sst_new(void); void lxw_sst_free(lxw_sst *sst); struct sst_element *lxw_get_sst_index(lxw_sst *sst, const char *string, uint8_t is_rich_string); void lxw_sst_assemble_xml_file(lxw_sst *self); /* Declarations required for unit testing. */ #ifdef TESTING STATIC void _sst_xml_declaration(lxw_sst *self); #endif /* TESTING */ /* *INDENT-OFF* */ #ifdef __cplusplus } #endif /* *INDENT-ON* */ #endif /* __LXW_SST_H__ */