src/version.c

   1 #include "a/version.h"
   2 #undef a_version_check
   3
   4 unsigned int const a_version_major = A_VERSION_MAJOR;
   5 unsigned int const a_version_minor = A_VERSION_MINOR;
   6 unsigned int const a_version_patch = A_VERSION_PATCH;
   7 a_u32 const a_version_tweak = A_VERSION_TWEAK;
   8
   9 int a_version_check(unsigned int major, unsigned int minor, unsigned int patch)
  10 {
  11     a_version inner, outer;
  12     inner.major = a_version_major;
  13     inner.minor = a_version_minor;
  14     inner.third = a_version_patch;
  15     outer.major = major;
  16     outer.minor = minor;
  17     outer.third = patch;
  18     return a_version_cmp(&inner, &outer);
  19 }
  20
  21 int a_version_cmp(a_version const *lhs, a_version const *rhs)
  22 {
  23     if (lhs->major < rhs->major) { return -3; }
  24     if (lhs->major > rhs->major) { return +3; }
  25     if (lhs->minor < rhs->minor) { return -2; }
  26     if (lhs->minor > rhs->minor) { return +2; }
  27     if (lhs->third < rhs->third) { return -1; }
  28     if (lhs->third > rhs->third) { return +1; }
  29     return 0;
  30 }
  31
  32 a_bool a_version_lt(a_version const *lhs, a_version const *rhs)
  33 {
  34     if (lhs->major < rhs->major) { return A_TRUE; }
  35     if (lhs->major > rhs->major) { return A_FALSE; }
  36     if (lhs->minor < rhs->minor) { return A_TRUE; }
  37     if (lhs->minor > rhs->minor) { return A_FALSE; }
  38     if (lhs->third < rhs->third) { return A_TRUE; }
  39     if (lhs->third > rhs->third) { return A_FALSE; }
  40     return A_FALSE;
  41 }
  42
  43 a_bool a_version_gt(a_version const *lhs, a_version const *rhs)
  44 {
  45     if (lhs->major > rhs->major) { return A_TRUE; }
  46     if (lhs->major < rhs->major) { return A_FALSE; }
  47     if (lhs->minor > rhs->minor) { return A_TRUE; }
  48     if (lhs->minor < rhs->minor) { return A_FALSE; }
  49     if (lhs->third > rhs->third) { return A_TRUE; }
  50     if (lhs->third < rhs->third) { return A_FALSE; }
  51     return A_FALSE;
  52 }
  53
  54 a_bool a_version_le(a_version const *lhs, a_version const *rhs)
  55 {
  56     if (lhs->major < rhs->major) { return A_TRUE; }
  57     if (lhs->major > rhs->major) { return A_FALSE; }
  58     if (lhs->minor < rhs->minor) { return A_TRUE; }
  59     if (lhs->minor > rhs->minor) { return A_FALSE; }
  60     if (lhs->third < rhs->third) { return A_TRUE; }
  61     if (lhs->third > rhs->third) { return A_FALSE; }
  62     return A_TRUE;
  63 }
  64
  65 a_bool a_version_ge(a_version const *lhs, a_version const *rhs)
  66 {
  67     if (lhs->major > rhs->major) { return A_TRUE; }
  68     if (lhs->major < rhs->major) { return A_FALSE; }
  69     if (lhs->minor > rhs->minor) { return A_TRUE; }
  70     if (lhs->minor < rhs->minor) { return A_FALSE; }
  71     if (lhs->third > rhs->third) { return A_TRUE; }
  72     if (lhs->third < rhs->third) { return A_FALSE; }
  73     return A_TRUE;
  74 }
  75
  76 a_bool a_version_eq(a_version const *lhs, a_version const *rhs)
  77 {
  78     return (lhs->major == rhs->major) && (lhs->minor == rhs->minor) && (lhs->third == rhs->third);
  79 }
  80
  81 a_bool a_version_ne(a_version const *lhs, a_version const *rhs)
  82 {
  83     return (lhs->major != rhs->major) || (lhs->minor != rhs->minor) || (lhs->third != rhs->third);
  84 }
  85
  86 #include <ctype.h>
  87
  88 static A_INLINE char const *a_version_set_alpha_(a_version *ctx, char const *alpha)
  89 {
  90     unsigned int c = 1;
  91     ctx->alpha[0] = *alpha;
  92     for (++alpha; isalpha(*alpha); ++alpha)
  93     {
  94         if (c < sizeof(ctx->alpha)) { ctx->alpha[c++] = *alpha; }
  95     }
  96     if (*alpha == '.')
  97     {
  98         if (c < sizeof(ctx->alpha)) { ctx->alpha[c++] = *alpha; }
  99         else { ctx->alpha[c - 1] = *alpha; }
 100         ++alpha;
 101     }
 102     while (c < sizeof(ctx->alpha)) { ctx->alpha[c++] = 0; }
 103     return alpha;
 104 }
 105
 106 #include <stdlib.h>
 107
 108 void a_version_set_alpha(a_version *ctx, char const *alpha)
 109 {
 110     if ((*alpha == '.' || *alpha == '-' || *alpha == '+' || isalpha(*alpha)) &&
 111         (isalpha(alpha[1]) || !alpha[1])) { a_version_set_alpha_(ctx, alpha); }
 112 }
 113
 114 unsigned int a_version_parse(a_version *ctx, char const *ver)
 115 {
 116     union
 117     {
 118         char const *s;
 119         char *p;
 120     } u;
 121     u.s = ver;
 122     if (!ver) { return 0; }
 123     ctx->major = (unsigned int)strtoul(u.s, &u.p, 0);
 124     if (u.s[0] == '.' && u.s[1] >= '0' && u.s[1] <= '9') { ++u.s; }
 125     else { goto major; }
 126     ctx->minor = (unsigned int)strtoul(u.s, &u.p, 0);
 127     if (u.s[0] == '.' && u.s[1] >= '0' && u.s[1] <= '9') { ++u.s; }
 128     else { goto minor; }
 129     ctx->third = (unsigned int)strtoul(u.s, &u.p, 0);
 130     if ((u.s[0] == '.' || u.s[0] == '-' || u.s[0] == '+' || isalpha(u.s[0])) &&
 131         (isalnum(u.s[1]) || !u.s[1])) { u.s = a_version_set_alpha_(ctx, u.s); }
 132     else { goto third; }
 133     ctx->extra = (unsigned int)strtoul(u.s, &u.p, 0);
 134     goto extra;
 135 major:
 136     ctx->minor = 0;
 137 minor:
 138     ctx->third = 0;
 139 third:
 140     ctx->extra = 0;
 141 extra:
 142     return (unsigned int)(u.s - ver);
 143 }
 144
 145 #include <stdio.h>
 146 #if defined(_MSC_VER) && (_MSC_VER < 1900)
 147 #define snprintf sprintf_s
 148 #endif /* _MSC_VER */
 149
 150 void a_version_alpha(a_version const *ctx, char alpha[5])
 151 {
 152     unsigned int c;
 153     for (c = 0; ctx->alpha[c] && c < sizeof(ctx->alpha); ++c)
 154     {
 155         alpha[c] = ctx->alpha[c];
 156     }
 157     alpha[c] = 0;
 158 }
 159
 160 unsigned int a_version_tostr(a_version const *ctx, void *pdata, a_size nbyte)
 161 {
 162     int n;
 163     char *p = (char *)pdata;
 164     char alpha[sizeof(ctx->alpha) + 1];
 165     if (ctx->extra || isalpha(ctx->alpha[0]) || isalpha(ctx->alpha[1]))
 166     {
 167         a_version_alpha(ctx, alpha);
 168         n = snprintf(p, nbyte, "%u.%u.%u%s%u",
 169                      ctx->major, ctx->minor, ctx->third, alpha, ctx->extra);
 170     }
 171     else
 172     {
 173         n = snprintf(p, nbyte, "%u.%u.%u",
 174                      ctx->major, ctx->minor, ctx->third);
 175     }
 176     return n > 0 ? (unsigned int)n : 0;
 177 }