libsemver/include/semver.h

#include "epoch.h"
#include <stdint.h>

#define u128 __uint128_t

typedef struct {
    uint16_t major;
} __Simple;

typedef struct {
    uint16_t major;
    uint16_t minor;
} __Rapid;

typedef struct {
    uint16_t major;
    uint16_t minor;
    uint16_t patch;
} __SemVer;

typedef struct {
    uint16_t major;
    uint16_t minor;
    uint16_t patch;
    uint16_t build;
} __Extended;

typedef enum {
    Simple,
    Rapid,
    SemVer,
    Extended,
} VersionKindTag;

typedef struct {
    char     hash[7];
    DateTime dt;
} GitRevision;

typedef enum {
    Alpha,
    Beta,
    ReleaseCandidate,
    GitRev,
    PRNone,
} PreReleaseTag;

typedef enum {
    any,
    arm,
    arm64,
    loongson,
    mips32,
    mips64,
    powerepc,
    powerpc64,
    riscv64,
    s390x,
    sparc,
    sparc64,
    x86,
    x86_64,
} Arch;

typedef struct {
    PreReleaseTag    pr_tag;
    union {
        uint16_t     alpha;
        uint16_t     beta;
        uint16_t     rc;
        GitRevision *git;
    };
} PreRelease;

typedef struct {
    VersionKindTag  vk_tag;
    union {
        __Simple    simple;
        __Rapid     rapid;
        __SemVer    semver;
        __Extended  extended;
    }               vk_data;
    PreReleaseTag   pr_tag;
    union {
        uint16_t    alpha;
        uint16_t    beta;
        uint16_t    rc;
        GitRevision *git;
    } pr_data;
    Arch arch;
} Version;

typedef enum {
    CompGreater,
    CompEqual,
    CompLess,
    CompNone,
} Comparison;

u128       u128FromVersion(Version *self);
Comparison compareVersion (Version *self, Version *other);
int        parseVersion   (Version *self, const char *s);
char      *versionToString(Version *self);