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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/shared/compare-operator.h | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/shared/compare-operator.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/shared/compare-operator.h b/src/shared/compare-operator.h new file mode 100644 index 0000000..900f3e5 --- /dev/null +++ b/src/shared/compare-operator.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include <errno.h> +#include <stdbool.h> + +#define COMPARE_OPERATOR_CHARS "!<=>" +#define COMPARE_OPERATOR_WITH_FNMATCH_CHARS COMPARE_OPERATOR_CHARS "$" + +typedef enum CompareOperator { + /* Listed in order of checking. Note that some comparators are prefixes of others, hence the longest + * should be listed first. */ + + /* Simple string compare operators */ + _COMPARE_OPERATOR_STRING_FIRST, + COMPARE_STRING_EQUAL = _COMPARE_OPERATOR_STRING_FIRST, + COMPARE_STRING_UNEQUAL, + _COMPARE_OPERATOR_STRING_LAST = COMPARE_STRING_UNEQUAL, + + /* fnmatch() compare operators */ + _COMPARE_OPERATOR_FNMATCH_FIRST, + COMPARE_FNMATCH_EQUAL = _COMPARE_OPERATOR_FNMATCH_FIRST, + COMPARE_FNMATCH_UNEQUAL, + _COMPARE_OPERATOR_FNMATCH_LAST = COMPARE_FNMATCH_UNEQUAL, + + /* Order compare operators */ + _COMPARE_OPERATOR_ORDER_FIRST, + COMPARE_LOWER_OR_EQUAL = _COMPARE_OPERATOR_ORDER_FIRST, + COMPARE_GREATER_OR_EQUAL, + COMPARE_LOWER, + COMPARE_GREATER, + COMPARE_EQUAL, + COMPARE_UNEQUAL, + _COMPARE_OPERATOR_ORDER_LAST = COMPARE_UNEQUAL, + + _COMPARE_OPERATOR_MAX, + _COMPARE_OPERATOR_INVALID = -EINVAL, +} CompareOperator; + +static inline bool COMPARE_OPERATOR_IS_STRING(CompareOperator c) { + return c >= _COMPARE_OPERATOR_STRING_FIRST && c <= _COMPARE_OPERATOR_STRING_LAST; +} + +static inline bool COMPARE_OPERATOR_IS_FNMATCH(CompareOperator c) { + return c >= _COMPARE_OPERATOR_FNMATCH_FIRST && c <= _COMPARE_OPERATOR_FNMATCH_LAST; +} + +static inline bool COMPARE_OPERATOR_IS_ORDER(CompareOperator c) { + return c >= _COMPARE_OPERATOR_ORDER_FIRST && c <= _COMPARE_OPERATOR_ORDER_LAST; +} + +typedef enum CompareOperatorParseFlags { + COMPARE_ALLOW_FNMATCH = 1 << 0, + COMPARE_EQUAL_BY_STRING = 1 << 1, + COMPARE_ALLOW_TEXTUAL = 1 << 2, +} CompareOperatorParseFlags; + +CompareOperator parse_compare_operator(const char **s, CompareOperatorParseFlags flags); + +int test_order(int k, CompareOperator op); + +int version_or_fnmatch_compare(CompareOperator op, const char *a, const char *b); |