neovim/src/nvim/version.c

// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com

/// @file version.c
///
/// Nvim was forked from Vim 7.4.160.
/// Vim originated from Stevie version 3.6 (Fish disk 217) by GRWalter (Fred).

#include <inttypes.h>
#include <assert.h>
#include <limits.h>

#include "nvim/api/private/helpers.h"
#include "nvim/vim.h"
#include "nvim/ascii.h"
#include "nvim/iconv.h"
#include "nvim/version.h"
#include "nvim/charset.h"
#include "nvim/macros.h"
#include "nvim/memline.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/screen.h"
#include "nvim/strings.h"
#include "nvim/lua/executor.h"

// version info generated by the build system
#include "auto/versiondef.h"

// for ":version", ":intro", and "nvim --version"
#ifndef NVIM_VERSION_MEDIUM
#define NVIM_VERSION_MEDIUM "v" STR(NVIM_VERSION_MAJOR)\
"." STR(NVIM_VERSION_MINOR) "." STR(NVIM_VERSION_PATCH)\
NVIM_VERSION_PRERELEASE
#endif
#define NVIM_VERSION_LONG "NVIM " NVIM_VERSION_MEDIUM


char *Version = VIM_VERSION_SHORT;
char *longVersion = NVIM_VERSION_LONG;
char *version_buildtype = "Build type: " NVIM_VERSION_BUILD_TYPE;
char *version_cflags = "Compilation: " NVIM_VERSION_CFLAGS;

#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "version.c.generated.h"
#endif

static char *features[] = {
#ifdef HAVE_ACL
"+acl",
#else
"-acl",
#endif

#if (defined(HAVE_ICONV_H) && defined(USE_ICONV)) || defined(DYNAMIC_ICONV)
# ifdef DYNAMIC_ICONV
"+iconv/dyn",
# else
"+iconv",
# endif
#else
"-iconv",
#endif

#ifdef FEAT_TUI
"+tui",
#else
"-tui",
#endif
NULL
};

// clang-format off
static const int included_patches[] = {
  1849,
  // 1848,
  1847,
  // 1846,
  // 1845,
  // 1844,
  1843,
  // 1842,
  // 1841,
  1840,
  1839,
  // 1838,
  1837,
  1836,
  // 1835,
  1834,
  1833,
  1832,
  1831,
  // 1830,
  1829,
  1828,
  1827,
  1826,
  1825,
  1824,
  // 1823,
  1822,
  // 1821,
  // 1820,
  1819,
  // 1818,
  // 1817,
  1816,
  // 1815,
  // 1814,
  1813,
  // 1812,
  1811,
  // 1810,
  1809,
  1808,
  1807,
  // 1806,
  1805,
  // 1804,
  1803,
  // 1802,
  // 1801,
  1800,
  1799,
  // 1798,
  // 1797,
  // 1796,
  // 1795,
  // 1794,
  // 1793,
  1792,
  1791,
  1790,
  // 1789,
  1788,
  1787,
  // 1786,
  1785,
  // 1784,
  // 1783,
  1782,
  1781,
  // 1780,
  1779,
  1778,
  1777,
  // 1776,
  // 1775,
  // 1774,
  1773,
  // 1772,
  // 1771,
  // 1770,
  // 1769,
  // 1768,
  // 1767,
  1766,
  1765,
  1764,
  1763,
  // 1762,
  // 1761,
  1760,
  // 1759,
  1758,
  1757,
  // 1756,
  1755,
  // 1754,
  // 1753,
  // 1752,
  1751,
  1750,
  1749,
  1748,
  // 1747,
  // 1746,
  // 1745,
  // 1744,
  // 1743,
  // 1742,
  1741,
  // 1740,
  1739,
  // 1738,
  1737,
  1736,
  // 1735,
  1734,
  // 1733,
  // 1732,
  1731,
  1730,
  // 1729,
  // 1728,
  1727,
  // 1726,
  // 1725,
  // 1724,
  // 1723,
  // 1722,
  // 1721,
  // 1720,
  1719,
  // 1718,
  1717,
  // 1716,
  // 1715,
  // 1714,
  // 1713,
  // 1712,
  // 1711,
  1710,
  // 1709,
  1708,
  1707,
  // 1706,
  1705,
  // 1704,
  // 1703,
  // 1702,
  1701,
  1700,
  1699,
  1698,
  // 1697,
  1696,
  // 1695,
  // 1694,
  1693,
  1692,
  // 1691,
  // 1690,
  // 1689,
  // 1688,
  1687,
  1686,
  // 1685,
  // 1684,
  1683,
  1682,
  // 1681,
  // 1680,
  1679,
  1678,
  1677,
  1676,
  1675,
  1674,
  // 1673,
  1672,
  // 1671,
  // 1670,
  // 1669,
  // 1668,
  // 1667,
  // 1666,
  // 1665,
  // 1664,
  1663,
  // 1662,
  1661,
  // 1660,
  1659,
  1658,
  // 1657,
  // 1656,
  // 1655,
  1654,
  // 1653,
  // 1652,
  // 1651,
  1650,
  1649,
  // 1648,
  // 1647,
  1646,
  // 1645,
  // 1644,
  // 1643,
  // 1642,
  // 1641,
  // 1640,
  1639,
  // 1638,
  // 1637,
  // 1636,
  1635,
  1634,
  1633,
  // 1632,
  // 1631,
  1630,
  // 1629,
  // 1628,
  1627,
  1626,
  1625,
  // 1624,
  // 1623,
  1622,
  // 1621,
  1620,
  // 1619,
  1618,
  // 1617,
  // 1616,
  // 1615,
  1614,
  1613,
  // 1612,
  // 1611,
  1610,
  // 1609,
  1608,
  1607,
  1606,
  // 1605,
  // 1604,
  1603,
  1602,
  1601,
  1600,
  // 1599,
  // 1598,
  1597,
  // 1596,
  1595,
  // 1594,
  // 1593,
  // 1592,
  // 1591,
  1590,
  // 1589,
  // 1588,
  // 1587,
  1586,
  1585,
  1584,
  1583,
  // 1582,
  1581,
  1580,
  1579,
  // 1578,
  1577,
  // 1576,
  1575,
  // 1574,
  1573,
  // 1572,
  1571,
  // 1570,
  1569,
  // 1568,
  1567,
  1566,
  1565,
  1564,
  1563,
  // 1562,
  1561,
  1560,
  1559,
  // 1558,
  1557,
  1556,
  1555,
  // 1554,
  1553,
  // 1552,
  // 1551,
  // 1550,
  // 1549,
  1548,
  1547,
  // 1546,
  1545,
  // 1544,
  // 1543,
  // 1542,
  1541,
  // 1540,
  // 1539,
  // 1538,
  // 1537,
  1536,
  // 1535,
  // 1534,
  // 1533,
  1532,
  // 1531,
  1530,
  // 1529,
  1528,
  // 1527,
  // 1526,
  // 1525,
  1524,
  // 1523,
  // 1522,
  // 1521,
  // 1520,
  1519,
  // 1518,
  1517,
  // 1516,
  // 1515,
  1514,
  1513,
  1512,
  // 1511,
  1510,
  1509,
  1508,
  1507,
  1506,
  // 1505,
  1504,
  1503,
  1502,
  1501,
  1500,
  1499,
  1498,
  1497,
  1496,
  // 1495,
  1494,
  1493,
  // 1492,
  // 1491,
  1490,
  1489,
  1488,
  1487,
  1486,
  1485,
  // 1484,
  1483,
  // 1482,
  1481,
  // 1480,
  // 1479,
  1478,
  // 1477,
  // 1476,
  1475,
  1474,
  1473,
  1472,
  1471,
  1470,
  1469,
  1468,
  1467,
  1466,
  1465,
  1464,
  // 1463,
  // 1462,
  // 1461,
  // 1460,
  // 1459,
  1458,
  1457,
  1456,
  // 1455,
  // 1454,
  // 1453,
  // 1452,
  // 1451,
  1450,
  // 1449,
  // 1448,
  1447,
  1446,
  1445,
  1444,
  1443,
  1442,
  1441,
  // 1440,
  1439,
  1438,
  1437,
  // 1436,
  1435,
  1434,
  1433,
  1432,
  1431,
  // 1430,
  // 1429,
  1428,
  1427,
  1426,
  1425,
  1424,
  1423,
  // 1422,
  1421,
  1420,
  1419,
  1418,
  1417,
  1416,
  1415,
  // 1414,
  1413,
  // 1412,
  1411,
  1410,
  1409,
  1408,
  1407,
  1406,
  // 1405,
  1404,
  1403,
  1402,
  1401,
  1400,
  1399,
  1398,
  1397,
  1396,
  1395,
  1394,
  1393,
  1392,
  1391,
  1390,
  1389,
  // 1388,
  1387,
  // 1386,
  1385,
  // 1384,
  1383,
  // 1382,
  // 1381,
  1380,
  1379,
  1378,
  1377,
  // 1376,
  // 1375,
  1374,
  1373,
  1372,
  // 1371,
  1370,
  1369,
  // 1368,
  // 1367,
  // 1366,
  1365,
  1364,
  1363,
  // 1362,
  1361,
  // 1360,
  // 1359,
  // 1358,
  1357,
  // 1356,
  // 1355,
  // 1354,
  1353,
  1352,
  1351,
  1350,
  // 1349,
  1348,
  // 1347,
  // 1346,
  // 1345,
  // 1344,
  1343,
  // 1342,
  // 1341,
  // 1340,
  // 1339,
  1338,
  1337,
  1336,
  // 1335,
  // 1334,
  1333,
  // 1332,
  1331,
  // 1330,
  1329,
  // 1328,
  1327,
  1326,
  1325,
  1324,
  // 1323,
  1322,
  // 1321,
  // 1320,
  // 1319,
  // 1318,
  // 1317,
  // 1316,
  // 1315,
  1314,
  1313,
  // 1312,
  1311,
  1310,
  // 1309,
  1308,
  // 1307,
  1306,
  // 1305,
  1304,
  1303,
  1302,
  1301,
  // 1300,
  1299,
  1298,
  // 1297,
  // 1296,
  // 1295,
  1294,
  // 1293,
  // 1292,
  1291,
  1290,
  1289,
  1288,
  // 1287,
  // 1286,
  1285,
  1284,
  1283,
  1282,
  1281,
  1280,
  1279,
  // 1278,
  // 1277,
  // 1276,
  1275,
  // 1274,
  1273,
  1272,
  1271,
  1270,
  1269,
  1268,
  1267,
  1266,
  1265,
  // 1264,
  1263,
  1262,
  // 1261,
  // 1260,
  // 1259,
  1258,
  1257,
  1256,
  1255,
  1254,
  1253,
  1252,
  1251,
  1250,
  1249,
  1248,
  1247,
  // 1246,
  // 1245,
  // 1244,
  1243,
  1242,
  // 1241,
  // 1240,
  // 1239,
  1238,
  1237,
  // 1236,
  1235,
  1234,
  1233,
  1232,
  1231,
  1230,
  1229,
  1228,
  1227,
  1226,
  1225,
  1224,
  1223,
  1222,
  1221,
  1220,
  1219,
  1218,
  // 1217,
  1216,
  1215,
  1214,
  // 1213,
  1212,
  1211,
  1210,
  1209,
  1208,
  1207,
  1206,
  1205,
  1204,
  // 1203,
  // 1202,
  1201,
  1200,
  1199,
  1198,
  1197,
  1196,
  1195,
  // 1194,
  // 1193,
  1192,
  1191,
  1190,
  1189,
  1188,
  1187,
  1186,
  1185,
  1184,
  1183,
  1182,
  1181,
  1180,
  // 1179,
  1178,
  // 1177,
  // 1176,
  1175,
  // 1174,
  // 1173,
  1172,
  1171,
  // 1170,
  1169,
  1168,
  // 1167,
  1166,
  1165,
  // 1164,
  1163,
  // 1162,
  1161,
  1160,
  1159,
  1158,
  1157,
  1156,
  1155,
  1154,
  1153,
  1152,
  1151,
  1150,
  // 1149,
  1148,
  1147,
  // 1146,
  1145,
  1144,
  1143,
  // 1142,
  1141,
  1140,
  // 1139,
  1138,
  1137,
  1136,
  1135,
  // 1134,
  1133,
  1132,
  // 1131,
  1130,
  // 1129,
  1128,
  // 1127,
  // 1126,
  // 1125,
  1124,
  // 1123,
  1122,
  1121,
  // 1120,
  // 1119,
  1118,
  // 1117,
  // 1116,
  1115,
  1114,
  // 1113,
  1112,
  1111,
  1110,
  // 1109,
  1108,
  1107,
  // 1106,
  1105,
  1104,
  // 1103,
  // 1102,
  // 1101,
  // 1100,
  1099,
  1098,
  // 1097,
  // 1096,
  // 1095,
  1094,
  1093,
  1092,
  1091,
  1090,
  1089,
  1088,
  // 1087,
  1086,
  1085,
  1084,
  // 1083,
  1082,
  // 1081,
  // 1080,
  1079,
  1078,
  1077,
  // 1076,
  // 1075,
  // 1074,
  1073,
  1072,
  1071,
  // 1070,
  1069,
  1068,
  1067,
  1066,
  1065,
  1064,
  1063,
  1062,
  1061,
  // 1060,
  1059,
  // 1058,
  // 1057,
  1056,
  // 1055,
  // 1054,
  // 1053,
  // 1052,
  // 1051,
  1050,
  // 1049,
  1048,
  1047,
  1046,
  1045,
  1044,
  1043,
  1042,
  1041,
  1040,
  // 1039,
  // 1038,
  1037,
  // 1036,
  // 1035,
  // 1034,
  1033,
  1032,
  1031,
  1030,
  1029,
  1028,
  1027,
  1026,
  1025,
  1024,
  1023,
  1022,
  1021,
  1020,
  1019,
  1018,
  1017,
  1016,
  // 1015,
  1014,
  // 1013,
  1012,
  // 1011,
  1010,
  // 1009,
  1008,
  1007,
  1006,
  1005,
  1004,
  1003,
  // 1002,
  1001,
  // 1000,
  999,
  998,
  997,
  996,
  // 995,
  // 994,
  993,
  // 992,
  // 991,
  // 990,
  989,
  988,
  // 987,
  986,
  // 985,
  // 984,
  983,
  // 982,
  // 981,
  980,
  // 979,
  // 978,
  // 977,
  // 976,
  975,
  974,
  // 973,
  972,
  971,
  // 970,
  969,
  // 968,
  967,
  966,
  // 965,
  // 964,
  // 963,
  962,
  961,
  // 960,
  // 959,
  // 958,
  // 957,
  // 956,
  955,
  954,
  // 953,
  952,
  951,
  950,
  949,
  948,
  // 947,
  946,
  945,
  944,
  // 943,
  // 942,
  // 941,
  // 940,
  // 939,
  // 938,
  // 937,
  // 936,
  // 935,
  // 934,
  // 933,
  // 932,
  // 931,
  // 930,
  // 929,
  928,
  // 927,
  // 926,
  925,
  // 924,
  // 923,
  922,
  921,
  // 920,
  919,
  // 918,
  // 917,
  // 916,
  915,
  // 914,
  // 913,
  // 912,
  911,
  // 910,
  // 909,
  // 908,
  907,
  906,
  905,
  904,
  903,
  // 902,
  901,
  900,
  // 899,
  // 898,
  897,
  // 896,
  895,
  894,
  // 893,
  // 892,
  891,
  890,
  889,
  888,
  // 887,
  886,
  // 885,
  // 884,
  883,
  // 882,
  881,
  880,
  879,
  878,
  // 877,
  876,
  875,
  // 874,
  873,
  872,
  871,
  // 870,
  // 869,
  868,
  // 867,
  866,
  865,
  // 864,
  // 863,
  862,
  861,
  860,
  859,
  858,
  857,
  856,
  855,
  854,
  853,
  852,
  851,
  850,
  849,
  848,
  847,
  846,
  845,
  844,
  843,
  842,
  841,
  840,
  839,
  838,
  837,
  836,
  835,
  834,
  833,
  832,
  831,
  830,
  829,
  828,
  827,
  826,
  // 825,
  824,
  823,
  822,
  // 821,
  820,
  819,
  // 818,
  // 817,
  // 816,
  815,
  814,
  813,
  812,
  811,
  810,
  809,
  808,
  807,
  806,
  805,
  804,
  // 803,
  802,
  801,
  800,
  799,
  798,
  797,
  796,
  795,
  794,
  793,
  792,
  791,
  790,
  789,
  788,
  787,
  786,
  785,
  784,
  783,
  782,
  781,
  780,
  779,
  778,
  777,
  776,
  775,
  774,
  773,
  772,
  771,
  770,
  769,
  768,
  767,
  766,
  765,
  764,
  763,
  762,
  761,
  760,
  759,
  758,
  757,
  756,
  755,
  754,
  753,
  752,
  751,
  750,
  749,
  748,
  747,
  746,
  745,
  744,
  743,
  742,
  741,
  740,
  739,
  738,
  737,
  736,
  735,
  734,
  733,
  732,
  731,
  730,
  729,
  728,
  727,
  726,
  725,
  724,
  723,
  722,
  721,
  720,
  719,
  718,
  717,
  716,
  715,
  714,
  713,
  712,
  711,
  710,
  709,
  708,
  707,
  706,
  705,
  704,
  703,
  702,
  701,
  700,
  699,
  698,
  697,
  696,
  695,
  694,
  693,
  692,
  691,
  690,
  689,
  688,
  687,
  686,
  685,
  684,
  683,
  682,
  681,
  680,
  679,
  678,
  677,
  676,
  675,
  674,
  673,
  672,
  671,
  670,
  669,
  668,
  667,
  666,
  665,
  664,
  663,
  662,
  661,
  660,
  659,
  658,
  657,
  656,
  655,
  654,
  653,
  652,
  651,
  650,
  649,
  648,
  647,
  646,
  645,
  644,
  643,
  642,
  641,
  640,
  639,
  638,
  637,
  636,
  635,
  634,
  633,
  632,
  631,
  630,
  629,
  628,
  627,
  626,
  625,
  624,
  623,
  622,
  621,
  620,
  619,
  618,
  617,
  616,
  615,
  614,
  613,
  612,
  611,
  610,
  609,
  608,
  607,
  606,
  605,
  604,
  603,
  602,
  601,
  600,
  599,
  598,
  597,
  596,
  595,
  594,
  593,
  592,
  591,
  590,
  589,
  588,
  587,
  586,
  585,
  584,
  583,
  582,
  581,
  580,
  579,
  578,
  577,
  576,
  575,
  574,
  573,
  572,
  571,
  570,
  569,
  568,
  567,
  566,
  565,
  564,
  563,
  562,
  561,
  560,
  559,
  558,
  557,
  556,
  555,
  554,
  553,
  552,
  551,
  550,
  549,
  548,
  547,
  546,
  545,
  544,
  543,
  542,
  541,
  540,
  539,
  538,
  537,
  536,
  535,
  534,
  533,
  532,
  531,
  530,
  529,
  528,
  527,
  526,
  525,
  524,
  523,
  522,
  521,
  520,
  519,
  518,
  517,
  516,
  515,
  514,
  513,
  512,
  511,
  510,
  509,
  508,
  507,
  506,
  505,
  504,
  503,
  502,
  501,
  500,
  499,
  498,
  497,
  496,
  495,
  494,
  493,
  492,
  491,
  490,
  489,
  488,
  487,
  486,
  485,
  484,
  483,
  482,
  481,
  480,
  479,
  478,
  477,
  476,
  475,
  474,
  473,
  472,
  471,
  470,
  469,
  468,
  467,
  466,
  465,
  464,
  463,
  462,
  461,
  460,
  459,
  458,
  457,
  456,
  455,
  454,
  453,
  452,
  451,
  450,
  449,
  448,
  447,
  446,
  445,
  444,
  443,
  442,
  441,
  440,
  439,
  438,
  437,
  436,
  435,
  434,
  433,
  432,
  431,
  430,
  429,
  428,
  427,
  426,
  425,
  424,
  423,
  422,
  421,
  420,
  419,
  418,
  417,
  416,
  415,
  414,
  413,
  412,
  411,
  410,
  409,
  408,
  407,
  406,
  405,
  404,
  403,
  402,
  401,
  400,
  399,
  398,
  397,
  // 396,
  395,
  394,
  393,
  392,
  391,
  390,
  389,
  388,
  387,
  386,
  385,
  384,
  383,
  382,
  381,
  380,
  379,
  378,
  377,
  376,
  375,
  374,
  373,
  372,
  371,
  370,
  369,
  368,
  367,
  366,
  365,
  364,
  363,
  362,
  361,
  360,
  359,
  358,
  357,
  356,
  355,
  354,
  353,
  352,
  351,
  350,
  349,
  348,
  347,
  346,
  345,
  344,
  343,
  342,
  341,
  340,
  339,
  338,
  337,
  336,
  335,
  334,
  333,
  332,
  331,
  330,
  329,
  328,
  327,
  326,
  325,
  324,
  323,
  322,
  321,
  320,
  319,
  318,
  317,
  316,
  315,
  314,
  313,
  312,
  311,
  310,
  309,
  308,
  307,
  306,
  305,
  304,
  // 303,
  302,
  301,
  300,
  299,
  298,
  297,
  // 296,
  295,
  294,
  293,
  292,
  291,
  290,
  289,
  288,
  287,
  286,
  285,
  284,
  283,
  282,
  281,
  280,
  279,
  278,
  277,
  276,
  275,
  274,
  273,
  272,
  271,
  270,
  269,
  268,
  267,
  266,
  265,
  264,
  263,
  262,
  261,
  260,
  259,
  258,
  257,
  256,
  255,
  254,
  253,
  252,
  251,
  250,
  249,
  248,
  247,
  246,
  245,
  244,
  243,
  242,
  241,
  240,
  239,
  // 238,
  237,
  236,
  235,
  234,
  // 233,
  232,
  // 231,
  230,
  229,
  228,
  227,
  226,
  225,
  224,
  223,
  222,
  221,
  220,
  219,
  218,
  217,
  216,
  215,
  214,
  213,
  212,
  211,
  210,
  209,
  208,
  207,
  206,
  205,
  204,
  203,
  202,
  201,
  200,
  199,
  198,
  197,
  196,
  195,
  194,
  193,
  192,
  191,
  190,
  189,
  188,
  187,
  186,
  185,
  184,
  183,
  182,
  181,
  180,
  179,
  178,
  177,
  176,
  175,
  174,
  173,
  172,
  171,
  170,
  169,
  168,
  167,
  166,
  165,
  164,
  163,
  162,
  161,
  160,
  159,
  158,
  157,
  156,
  155,
  154,
  153,
  152,
  151,
  150,
  149,
  148,
  147,
  146,
  145,
  144,
  143,
  142,
  141,
  140,
  139,
  138,
  137,
  136,
  135,
  134,
  133,
  132,
  131,
  130,
  129,
  128,
  127,
  126,
  125,
  124,
  123,
  122,
  121,
  120,
  119,
  118,
  117,
  116,
  115,
  114,
  113,
  112,
  111,
  110,
  109,
  108,
  107,
  106,
  105,
  104,
  103,
  102,
  101,
  100,
  99,
  98,
  97,
  96,
  95,
  94,
  93,
  92,
  91,
  90,
  89,
  88,
  87,
  86,
  85,
  84,
  83,
  82,
  81,
  80,
  79,
  78,
  77,
  76,
  75,
  74,
  73,
  72,
  71,
  70,
  69,
  68,
  67,
  66,
  65,
  64,
  63,
  62,
  61,
  60,
  59,
  58,
  57,
  56,
  55,
  54,
  53,
  52,
  51,
  50,
  49,
  48,
  47,
  46,
  45,
  44,
  43,
  42,
  41,
  40,
  39,
  38,
  37,
  36,
  35,
  34,
  33,
  32,
  31,
  30,
  29,
  28,
  27,
  26,
  25,
  24,
  23,
  22,
  21,
  20,
  19,
  18,
  17,
  16,
  15,
  14,
  13,
  12,
  11,
  10,
  9,
  8,
  7,
  6,
  5,
  4,
  3,
  2,
  1,
  0,
};
// clang-format on

/// Compares a version string to the current Nvim version.
///
/// @param version Version string like "1.3.42"
///
/// @return true if Nvim is at or above the version.
bool has_nvim_version(const char *const version_str)
  FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
  const char *p = version_str;
  int major = 0;
  int minor = 0;
  int patch = 0;

  if (!ascii_isdigit(*p)) {
    return false;
  }
  major = atoi(p);
  p = strchr(p, '.');  // Find the next dot.

  if (p) {
    p++;  // Advance past the dot.
    if (!ascii_isdigit(*p)) {
      return false;
    }
    minor = atoi(p);
    p = strchr(p, '.');
    if (p) {
      p++;
      if (!ascii_isdigit(*p)) {
        return false;
      }
      patch = atoi(p);
    }
  }

  return (major < NVIM_VERSION_MAJOR
          || (major == NVIM_VERSION_MAJOR
              && (minor < NVIM_VERSION_MINOR
                  || (minor == NVIM_VERSION_MINOR
                      && patch <= NVIM_VERSION_PATCH))));
}

/// Checks whether a Vim patch has been included.
///
/// @param n Patch number.
///
/// @return true if patch `n` has been included.
bool has_vim_patch(int n)
{
  for (int i = 0; included_patches[i] != 0; i++) {
    if (included_patches[i] == n) {
      return true;
    }
  }
  return false;
}

Dictionary version_dict(void) {
  Dictionary d = ARRAY_DICT_INIT;
  PUT(d, "major", INTEGER_OBJ(NVIM_VERSION_MAJOR));
  PUT(d, "minor", INTEGER_OBJ(NVIM_VERSION_MINOR));
  PUT(d, "patch", INTEGER_OBJ(NVIM_VERSION_PATCH));
  PUT(d, "api_level", INTEGER_OBJ(NVIM_API_LEVEL));
  PUT(d, "api_compatible", INTEGER_OBJ(NVIM_API_LEVEL_COMPAT));
  PUT(d, "api_prerelease", BOOLEAN_OBJ(NVIM_API_PRERELEASE));
  return d;
}

void ex_version(exarg_T *eap)
{
  // Ignore a ":version 9.99" command.
  if (*eap->arg == NUL) {
    msg_putchar('\n');
    list_version();
  }
}

/// List all features aligned in columns, dictionary style.
static void list_features(void)
{
  int nfeat = 0;
  int width = 0;

  // Find the length of the longest feature name, use that + 1 as the column
  // width
  int i;
  for (i = 0; features[i] != NULL; ++i) {
    int l = (int)STRLEN(features[i]);

    if (l > width) {
      width = l;
    }
    nfeat++;
  }
  width += 1;

  if (Columns < width) {
    // Not enough screen columns - show one per line
    for (i = 0; features[i] != NULL; ++i) {
      version_msg(features[i]);
      if (msg_col > 0) {
        msg_putchar('\n');
      }
    }
    return;
  }

  // The rightmost column doesn't need a separator.
  // Sacrifice it to fit in one more column if possible.
  int ncol = (int)(Columns + 1) / width;
  int nrow = nfeat / ncol + (nfeat % ncol ? 1 : 0);

  // i counts columns then rows.  idx counts rows then columns.
  for (i = 0; !got_int && i < nrow * ncol; ++i) {
    int idx = (i / ncol) + (i % ncol) * nrow;
    if (idx < nfeat) {
      int last_col = (i + 1) % ncol == 0;
      msg_puts(features[idx]);
      if (last_col) {
        if (msg_col > 0) {
          msg_putchar('\n');
        }
      } else {
        msg_putchar(' ');
      }
    } else {
      if (msg_col > 0) {
        msg_putchar('\n');
      }
    }
  }
  MSG_PUTS("See \":help feature-compile\"\n\n");
}

void list_lua_version(void)
{
  typval_T luaver_tv;
  typval_T arg = { .v_type = VAR_UNKNOWN };  // No args.
  char *luaver_expr = "((jit and jit.version) and jit.version or _VERSION)";
  executor_eval_lua(cstr_as_string(luaver_expr), &arg, &luaver_tv);
  assert(luaver_tv.v_type == VAR_STRING);
  MSG(luaver_tv.vval.v_string);
  xfree(luaver_tv.vval.v_string);
}

void list_version(void)
{
  MSG(longVersion);
  MSG(version_buildtype);
  list_lua_version();
  MSG(version_cflags);

#ifdef HAVE_PATHDEF

  if ((*compiled_user != NUL) || (*compiled_sys != NUL)) {
    MSG_PUTS(_("\nCompiled "));

    if (*compiled_user != NUL) {
      MSG_PUTS(_("by "));
      MSG_PUTS(compiled_user);
    }

    if (*compiled_sys != NUL) {
      MSG_PUTS("@");
      MSG_PUTS(compiled_sys);
    }
  }
#endif  // ifdef HAVE_PATHDEF

  version_msg(_("\n\nFeatures: "));

  list_features();

#ifdef SYS_VIMRC_FILE
  version_msg(_("   system vimrc file: \""));
  version_msg(SYS_VIMRC_FILE);
  version_msg("\"\n");
#endif  // ifdef SYS_VIMRC_FILE
#ifdef HAVE_PATHDEF

  if (*default_vim_dir != NUL) {
    version_msg(_("  fall-back for $VIM: \""));
    version_msg(default_vim_dir);
    version_msg("\"\n");
  }

  if (*default_vimruntime_dir != NUL) {
    version_msg(_(" f-b for $VIMRUNTIME: \""));
    version_msg(default_vimruntime_dir);
    version_msg("\"\n");
  }
#endif  // ifdef HAVE_PATHDEF

  version_msg("\nRun :checkhealth for more info");
}

/// Output a string for the version message.  If it's going to wrap, output a
/// newline, unless the message is too long to fit on the screen anyway.
///
/// @param s
static void version_msg(char *s)
{
  int len = (int)STRLEN(s);

  if (!got_int
      && (len < (int)Columns)
      && (msg_col + len >= (int)Columns)
      && (*s != '\n')) {
    msg_putchar('\n');
  }

  if (!got_int) {
    MSG_PUTS(s);
  }
}


/// Show the intro message when not editing a file.
void maybe_intro_message(void)
{
  if (BUFEMPTY()
      && (curbuf->b_fname == NULL)
      && (firstwin->w_next == NULL)
      && (vim_strchr(p_shm, SHM_INTRO) == NULL)) {
    intro_message(FALSE);
  }
}

/// Give an introductory message about Vim.
/// Only used when starting Vim on an empty file, without a file name.
/// Or with the ":intro" command (for Sven :-).
///
/// @param colon TRUE for ":intro"
void intro_message(int colon)
{
  int i;
  long row;
  long blanklines;
  int sponsor;
  char *p;
  static char *(lines[]) = {
    N_(NVIM_VERSION_LONG),
    "",
    N_("Nvim is open source and freely distributable"),
    N_("https://neovim.io/#chat"),
    "",
    N_("type  :help nvim<Enter>       if you are new! "),
    N_("type  :checkhealth<Enter>     to optimize Nvim"),
    N_("type  :q<Enter>               to exit         "),
    N_("type  :help<Enter>            for help        "),
    "",
    N_("Help poor children in Uganda!"),
    N_("type  :help iccf<Enter>       for information "),
  };

  // blanklines = screen height - # message lines
  size_t lines_size = ARRAY_SIZE(lines);
  assert(lines_size <= LONG_MAX);

  blanklines = Rows - ((long)lines_size - 1l);

  // Don't overwrite a statusline.  Depends on 'cmdheight'.
  if (p_ls > 1) {
    blanklines -= Rows - topframe->fr_height;
  }

  if (blanklines < 0) {
    blanklines = 0;
  }

  // Show the sponsor and register message one out of four times, the Uganda
  // message two out of four times.
  sponsor = (int)time(NULL);
  sponsor = ((sponsor & 2) == 0) - ((sponsor & 4) == 0);

  // start displaying the message lines after half of the blank lines
  row = blanklines / 2;

  if (((row >= 2) && (Columns >= 50)) || colon) {
    for (i = 0; i < (int)ARRAY_SIZE(lines); ++i) {
      p = lines[i];

      if (sponsor != 0) {
        if (strstr(p, "children") != NULL) {
          p = sponsor < 0
              ? N_("Sponsor Vim development!")
              : N_("Become a registered Vim user!");
        } else if (strstr(p, "iccf") != NULL) {
          p = sponsor < 0
              ? N_("type  :help sponsor<Enter>    for information ")
              : N_("type  :help register<Enter>   for information ");
        } else if (strstr(p, "Orphans") != NULL) {
          p = N_("menu  Help->Sponsor/Register  for information    ");
        }
      }

      if (*p != NUL) {
        do_intro_line(row, (char_u *)_(p), 0);
      }
      row++;
    }
  }

  // Make the wait-return message appear just below the text.
  if (colon) {
    assert(row <= INT_MAX);
    msg_row = (int)row;
  }
}

static void do_intro_line(long row, char_u *mesg, int attr)
{
  long col;
  char_u *p;
  int l;
  int clen;

  // Center the message horizontally.
  col = vim_strsize(mesg);

  col = (Columns - col) / 2;

  if (col < 0) {
    col = 0;
  }

  // Split up in parts to highlight <> items differently.
  for (p = mesg; *p != NUL; p += l) {
    clen = 0;

    for (l = 0; p[l] != NUL
         && (l == 0 || (p[l] != '<' && p[l - 1] != '>')); ++l) {
      if (has_mbyte) {
        clen += ptr2cells(p + l);
        l += (*mb_ptr2len)(p + l) - 1;
      } else {
        clen += byte2cells(p[l]);
      }
    }
    assert(row <= INT_MAX && col <= INT_MAX);
    grid_puts_len(&default_grid, p, l, (int)row, (int)col,
                  *p == '<' ? HL_ATTR(HLF_8) : attr);
    col += clen;
  }
}

/// ":intro": clear screen, display intro screen and wait for return.
///
/// @param eap
void ex_intro(exarg_T *eap)
{
  screenclear();
  intro_message(TRUE);
  wait_return(TRUE);
}