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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 13:14:44 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 13:14:44 +0000 |
commit | 30ff6afe596eddafacf22b1a5b2d1a3d6254ea15 (patch) | |
tree | 9b788335f92174baf7ee18f03ca8330b8c19ce2b /libsmartcols/src/symbols.c | |
parent | Initial commit. (diff) | |
download | util-linux-30ff6afe596eddafacf22b1a5b2d1a3d6254ea15.tar.xz util-linux-30ff6afe596eddafacf22b1a5b2d1a3d6254ea15.zip |
Adding upstream version 2.36.1.upstream/2.36.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | libsmartcols/src/symbols.c | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/libsmartcols/src/symbols.c b/libsmartcols/src/symbols.c new file mode 100644 index 0000000..2fadfc7 --- /dev/null +++ b/libsmartcols/src/symbols.c @@ -0,0 +1,293 @@ +/* + * symbols.c - routines for symbol handling + * + * Copyright (C) 2014 Ondrej Oprala <ooprala@redhat.com> + * Copyright (C) 2016 Igor Gnatenko <i.gnatenko.brain@gmail.com> + * + * This file may be redistributed under the terms of the + * GNU Lesser General Public License. + */ + +/** + * SECTION: symbols + * @title: Symbols + * @short_description: can be used to overwrite default output chars (for ascii art) + * + * An API to access and modify data and information per symbol/symbol group. + */ + + +#include <stdlib.h> +#include <unistd.h> +#include <string.h> + +#include "smartcolsP.h" + +/** + * scols_new_symbols: + * + * Returns: a pointer to a newly allocated struct libscols_symbols instance. + */ +struct libscols_symbols *scols_new_symbols(void) +{ + struct libscols_symbols *sy = calloc(1, sizeof(struct libscols_symbols)); + + if (!sy) + return NULL; + sy->refcount = 1; + return sy; +} + +/** + * scols_ref_symbols: + * @sy: a pointer to a struct libscols_symbols instance + * + * Increases the refcount of @sy. + */ +void scols_ref_symbols(struct libscols_symbols *sy) +{ + if (sy) + sy->refcount++; +} + +/** + * scols_unref_symbols: + * @sy: a pointer to a struct libscols_symbols instance + * + * Decreases the refcount of @sy. + */ +void scols_unref_symbols(struct libscols_symbols *sy) +{ + if (sy && --sy->refcount <= 0) { + free(sy->tree_branch); + free(sy->tree_vert); + free(sy->tree_right); + free(sy->group_last_member); + free(sy->group_middle_member); + free(sy->group_first_member); + free(sy->group_vert); + free(sy->group_horz); + free(sy->group_last_child); + free(sy->group_middle_child); + free(sy->title_padding); + free(sy->cell_padding); + free(sy); + } +} + +/** + * scols_symbols_set_branch: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent the branch part of a tree output + * + * Returns: 0, a negative value in case of an error. + */ +int scols_symbols_set_branch(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, tree_branch, str); +} + +/** + * scols_symbols_set_vertical: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent the vertical part of a tree output + * + * Returns: 0, a negative value in case of an error. + */ +int scols_symbols_set_vertical(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, tree_vert, str); +} + +/** + * scols_symbols_set_right: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent the right part of a tree output + * + * Returns: 0, a negative value in case of an error. + */ +int scols_symbols_set_right(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, tree_right, str); +} + +/** + * scols_symbols_set_title_padding: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent the symbols which fill title output + * + * The current implementation uses only the first byte from the padding string. + * A multibyte chars are not supported yet. + * + * Returns: 0, a negative value in case of an error. + * + * Since: 2.28 + */ +int scols_symbols_set_title_padding(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, title_padding, str); +} + +/** + * scols_symbols_set_cell_padding: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent the symbols which fill cells + * + * The padding char has to take up just one cell on the terminal. + * + * Returns: 0, a negative value in case of an error. + * + * Since: 2.29 + */ +int scols_symbols_set_cell_padding(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, cell_padding, str); +} + + +/** + * scols_symbols_set_group_vertical: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent the vertival line + * + * Returns: 0, a negative value in case of an error. + * + * Since: 2.34 + */ +int scols_symbols_set_group_vertical(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, group_vert, str); +} + +/** + * scols_symbols_set_group_horizontal: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent the horizontal line + * + * Returns: 0, a negative value in case of an error. + * + * Since: 2.34 + */ +int scols_symbols_set_group_horizontal(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, group_horz, str); +} + +/** + * scols_symbols_set_group_first_member: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent first member + * + * Returns: 0, a negative value in case of an error. + * + * Since: 2.34 + */ +int scols_symbols_set_group_first_member(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, group_first_member, str); +} + +/** + * scols_symbols_set_group_last_member: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent last member + * + * Returns: 0, a negative value in case of an error. + * + * Since: 2.34 + */ +int scols_symbols_set_group_last_member(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, group_last_member, str); +} + +/** + * scols_symbols_set_group_middle: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent middle member + * + * Returns: 0, a negative value in case of an error. + * + * Since: 2.34 + */ +int scols_symbols_set_group_middle_member(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, group_middle_member, str); +} + +/** + * scols_symbols_set_group_last_child: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent last child + * + * Returns: 0, a negative value in case of an error. + * + * Since: 2.34 + */ +int scols_symbols_set_group_last_child(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, group_last_child, str); +} + +/** + * scols_symbols_set_group_middle_child: + * @sy: a pointer to a struct libscols_symbols instance + * @str: a string which will represent last child + * + * Returns: 0, a negative value in case of an error. + * + * Since: 2.34 + */ +int scols_symbols_set_group_middle_child(struct libscols_symbols *sy, const char *str) +{ + return strdup_to_struct_member(sy, group_middle_child, str); +} + +/** + * scols_copy_symbols: + * @sy: a pointer to a struct libscols_symbols instance + * + * Returns: a newly allocated copy of the @sy symbol group or NULL in case of an error. + */ +struct libscols_symbols *scols_copy_symbols(const struct libscols_symbols *sy) +{ + struct libscols_symbols *ret; + int rc; + + assert(sy); + if (!sy) + return NULL; + + ret = scols_new_symbols(); + if (!ret) + return NULL; + + rc = scols_symbols_set_branch(ret, sy->tree_branch); + if (!rc) + rc = scols_symbols_set_vertical(ret, sy->tree_vert); + if (!rc) + rc = scols_symbols_set_right(ret, sy->tree_right); + if (!rc) + rc = scols_symbols_set_group_vertical(ret, sy->group_vert); + if (!rc) + rc = scols_symbols_set_group_horizontal(ret, sy->group_horz); + if (!rc) + rc = scols_symbols_set_group_first_member(ret, sy->group_first_member); + if (!rc) + rc = scols_symbols_set_group_last_member(ret, sy->group_last_member); + if (!rc) + rc = scols_symbols_set_group_middle_member(ret, sy->group_middle_member); + if (!rc) + rc = scols_symbols_set_group_middle_child(ret, sy->group_middle_child); + if (!rc) + rc = scols_symbols_set_group_last_child(ret, sy->group_last_child); + if (!rc) + rc = scols_symbols_set_title_padding(ret, sy->title_padding); + if (!rc) + rc = scols_symbols_set_cell_padding(ret, sy->cell_padding); + if (!rc) + return ret; + + scols_unref_symbols(ret); + return NULL; +} |