libsemver/include/semver.h

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

#define u128 __uint128_t

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    tag;
    union {
        uint16_t     alpha;
        uint16_t     beta;
        uint16_t     rc;
        GitRevision  git;
    };
} PreRelease;

typedef struct {
    VersionKindTag   vk_tag;
    union {
        struct {
            uint16_t major;
        }            simple;
        struct {
            uint16_t major;
            uint16_t minor;
        }            rapid;
        struct {
            uint16_t major;
            uint16_t minor;
            uint16_t patch;
        }            semver;
        struct {
            uint16_t major;
            uint16_t minor;
            uint16_t patch;
            uint16_t build;
        }            extended;
    };
    PreRelease       pr;
    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);