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/*
* An example of using the libxlsxwriter library to write some "rich strings",
* i.e., strings with multiple formats.
*
* Copyright 2014-2026, John McNamara, jmcnamara@cpan.org
*
*/
#include "xlsxwriter.h"
int main() {
lxw_workbook *workbook = workbook_new("rich_strings.xlsx");
lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);
/* Set up some formats to use. */
lxw_format *bold = workbook_add_format(workbook);
format_set_bold(bold);
lxw_format *italic = workbook_add_format(workbook);
format_set_italic(italic);
lxw_format *red = workbook_add_format(workbook);
format_set_font_color(red, LXW_COLOR_RED);
lxw_format *blue = workbook_add_format(workbook);
format_set_font_color(blue, LXW_COLOR_BLUE);
lxw_format *center = workbook_add_format(workbook);
format_set_align(center, LXW_ALIGN_CENTER);
lxw_format *superscript = workbook_add_format(workbook);
format_set_font_script(superscript, LXW_FONT_SUPERSCRIPT);
/* Make the first column wider for clarity. */
worksheet_set_column(worksheet, 0, 0, 30, NULL);
/*
* Create and write some rich strings with multiple formats.
*/
/* Example 1. Some bold and italic in the same string. */
lxw_rich_string_tuple fragment11 = {.format = NULL, .string = "This is " };
lxw_rich_string_tuple fragment12 = {.format = bold, .string = "bold" };
lxw_rich_string_tuple fragment13 = {.format = NULL, .string = " and this is "};
lxw_rich_string_tuple fragment14 = {.format = italic, .string = "italic" };
lxw_rich_string_tuple *rich_string1[] = {&fragment11, &fragment12,
&fragment13, &fragment14, NULL};
worksheet_write_rich_string(worksheet, CELL("A1"), rich_string1, NULL);
/* Example 2. Some red and blue coloring in the same string. */
lxw_rich_string_tuple fragment21 = {.format = NULL, .string = "This is " };
lxw_rich_string_tuple fragment22 = {.format = red, .string = "red" };
lxw_rich_string_tuple fragment23 = {.format = NULL, .string = " and this is "};
lxw_rich_string_tuple fragment24 = {.format = blue, .string = "blue" };
lxw_rich_string_tuple *rich_string2[] = {&fragment21, &fragment22,
&fragment23, &fragment24, NULL};
worksheet_write_rich_string(worksheet, CELL("A3"), rich_string2, NULL);
/* Example 3. A rich string plus cell formatting. */
lxw_rich_string_tuple fragment31 = {.format = NULL, .string = "Some " };
lxw_rich_string_tuple fragment32 = {.format = bold, .string = "bold text"};
lxw_rich_string_tuple fragment33 = {.format = NULL, .string = " centered"};
lxw_rich_string_tuple *rich_string3[] = {&fragment31, &fragment32,
&fragment33, NULL};
/* Note that this example also has a "center" cell format. */
worksheet_write_rich_string(worksheet, CELL("A5"), rich_string3, center);
/* Example 4. A math example with a superscript. */
lxw_rich_string_tuple fragment41 = {.format = italic, .string = "j =k" };
lxw_rich_string_tuple fragment42 = {.format = superscript, .string = "(n-1)"};
lxw_rich_string_tuple *rich_string4[] = {&fragment41, &fragment42, NULL};
worksheet_write_rich_string(worksheet, CELL("A7"), rich_string4, center);
workbook_close(workbook);
return 0;
}
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