Skip to content
This repository
Fetching contributors…

Cannot retrieve contributors at this time

file 2572 lines (2279 sloc) 59.4 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572
/* vi:set ts=8 sts=4 sw=4:
*
* CSCOPE support for Vim added by Andy Kahn <kahn@zk3.dec.com>
* Ported to Win32 by Sergey Khorev <sergey.khorev@gmail.com>
*
* The basic idea/structure of cscope for Vim was borrowed from Nvi. There
* might be a few lines of code that look similar to what Nvi has.
*
* See README.txt for an overview of the Vim source code.
*/

#include "vim.h"

#if defined(FEAT_CSCOPE) || defined(PROTO)

#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#if defined(UNIX)
# include <sys/wait.h>
#endif
#include "if_cscope.h"

static void cs_usage_msg __ARGS((csid_e x));
static int cs_add __ARGS((exarg_T *eap));
static void cs_stat_emsg __ARGS((char *fname));
static int cs_add_common __ARGS((char *, char *, char *));
static int cs_check_for_connections __ARGS((void));
static int cs_check_for_tags __ARGS((void));
static int cs_cnt_connections __ARGS((void));
static void cs_reading_emsg __ARGS((int idx));
static int cs_cnt_matches __ARGS((int idx));
static char * cs_create_cmd __ARGS((char *csoption, char *pattern));
static int cs_create_connection __ARGS((int i));
static void do_cscope_general __ARGS((exarg_T *eap, int make_split));
#ifdef FEAT_QUICKFIX
static void cs_file_results __ARGS((FILE *, int *));
#endif
static void cs_fill_results __ARGS((char *, int , int *, char ***,
char ***, int *));
static int cs_find __ARGS((exarg_T *eap));
static int cs_find_common __ARGS((char *opt, char *pat, int, int, int, char_u *cmdline));
static int cs_help __ARGS((exarg_T *eap));
static void clear_csinfo __ARGS((int i));
static int cs_insert_filelist __ARGS((char *, char *, char *,
struct stat *));
static int cs_kill __ARGS((exarg_T *eap));
static void cs_kill_execute __ARGS((int, char *));
static cscmd_T * cs_lookup_cmd __ARGS((exarg_T *eap));
static char * cs_make_vim_style_matches __ARGS((char *, char *,
char *, char *));
static char * cs_manage_matches __ARGS((char **, char **, int, mcmd_e));
static char * cs_parse_results __ARGS((int cnumber, char *buf, int bufsize, char **context, char **linenumber, char **search));
static char * cs_pathcomponents __ARGS((char *path));
static void cs_print_tags_priv __ARGS((char **, char **, int));
static int cs_read_prompt __ARGS((int));
static void cs_release_csp __ARGS((int, int freefnpp));
static int cs_reset __ARGS((exarg_T *eap));
static char * cs_resolve_file __ARGS((int, char *));
static int cs_show __ARGS((exarg_T *eap));


static csinfo_T * csinfo = NULL;
static int csinfo_size = 0; /* number of items allocated in
csinfo[] */

static int eap_arg_len; /* length of eap->arg, set in
cs_lookup_cmd() */
static cscmd_T cs_cmds[] =
{
    { "add", cs_add,
N_("Add a new database"), "add file|dir [pre-path] [flags]", 0 },
    { "find", cs_find,
N_("Query for a pattern"), "find c|d|e|f|g|i|s|t name", 1 },
    { "help", cs_help,
N_("Show this message"), "help", 0 },
    { "kill", cs_kill,
N_("Kill a connection"), "kill #", 0 },
    { "reset", cs_reset,
N_("Reinit all connections"), "reset", 0 },
    { "show", cs_show,
N_("Show connections"), "show", 0 },
    { NULL, NULL, NULL, NULL, 0 }
};

    static void
cs_usage_msg(x)
    csid_e x;
{
    (void)EMSG2(_("E560: Usage: cs[cope] %s"), cs_cmds[(int)x].usage);
}

#if defined(FEAT_CMDL_COMPL) || defined(PROTO)

static enum
{
    EXP_CSCOPE_SUBCMD, /* expand ":cscope" sub-commands */
    EXP_SCSCOPE_SUBCMD, /* expand ":scscope" sub-commands */
    EXP_CSCOPE_FIND, /* expand ":cscope find" arguments */
    EXP_CSCOPE_KILL /* expand ":cscope kill" arguments */
} expand_what;

/*
* Function given to ExpandGeneric() to obtain the cscope command
* expansion.
*/
    char_u *
get_cscope_name(xp, idx)
    expand_T *xp UNUSED;
    int idx;
{
    int current_idx;
    int i;

    switch (expand_what)
    {
    case EXP_CSCOPE_SUBCMD:
/* Complete with sub-commands of ":cscope":
* add, find, help, kill, reset, show */
return (char_u *)cs_cmds[idx].name;
    case EXP_SCSCOPE_SUBCMD:
/* Complete with sub-commands of ":scscope": same sub-commands as
* ":cscope" but skip commands which don't support split windows */
for (i = 0, current_idx = 0; cs_cmds[i].name != NULL; i++)
if (cs_cmds[i].cansplit)
if (current_idx++ == idx)
break;
return (char_u *)cs_cmds[i].name;
    case EXP_CSCOPE_FIND:
{
const char *query_type[] =
{
"c", "d", "e", "f", "g", "i", "s", "t", NULL
};

/* Complete with query type of ":cscope find {query_type}".
* {query_type} can be letters (c, d, ... t) or numbers (0, 1,
* ..., 8) but only complete with letters, since numbers are
* redundant. */
return (char_u *)query_type[idx];
}
    case EXP_CSCOPE_KILL:
{
static char connection[5];

/* ":cscope kill" accepts connection numbers or partial names of
* the pathname of the cscope database as argument. Only complete
* with connection numbers. -1 can also be used to kill all
* connections. */
for (i = 0, current_idx = 0; i < csinfo_size; i++)
{
if (csinfo[i].fname == NULL)
continue;
if (current_idx++ == idx)
{
vim_snprintf(connection, sizeof(connection), "%d", i);
return (char_u *)connection;
}
}
return (current_idx == idx && idx > 0) ? (char_u *)"-1" : NULL;
}
    default:
return NULL;
    }
}

/*
* Handle command line completion for :cscope command.
*/
    void
set_context_in_cscope_cmd(xp, arg, cmdidx)
    expand_T *xp;
    char_u *arg;
    cmdidx_T cmdidx;
{
    char_u *p;

    /* Default: expand subcommands */
    xp->xp_context = EXPAND_CSCOPE;
    xp->xp_pattern = arg;
    expand_what = (cmdidx == CMD_scscope)
? EXP_SCSCOPE_SUBCMD : EXP_CSCOPE_SUBCMD;

    /* (part of) subcommand already typed */
    if (*arg != NUL)
    {
p = skiptowhite(arg);
if (*p != NUL) /* past first word */
{
xp->xp_pattern = skipwhite(p);
if (*skiptowhite(xp->xp_pattern) != NUL)
xp->xp_context = EXPAND_NOTHING;
else if (STRNICMP(arg, "add", p - arg) == 0)
xp->xp_context = EXPAND_FILES;
else if (STRNICMP(arg, "kill", p - arg) == 0)
expand_what = EXP_CSCOPE_KILL;
else if (STRNICMP(arg, "find", p - arg) == 0)
expand_what = EXP_CSCOPE_FIND;
else
xp->xp_context = EXPAND_NOTHING;
}
    }
}

#endif /* FEAT_CMDL_COMPL */

/*
* PRIVATE: do_cscope_general
*
* Find the command, print help if invalid, and then call the corresponding
* command function.
*/
    static void
do_cscope_general(eap, make_split)
    exarg_T *eap;
    int make_split; /* whether to split window */
{
    cscmd_T *cmdp;

    if ((cmdp = cs_lookup_cmd(eap)) == NULL)
    {
cs_help(eap);
return;
    }

#ifdef FEAT_WINDOWS
    if (make_split)
    {
if (!cmdp->cansplit)
{
(void)MSG_PUTS(_("This cscope command does not support splitting the window.\n"));
return;
}
postponed_split = -1;
postponed_split_flags = cmdmod.split;
postponed_split_tab = cmdmod.tab;
    }
#endif

    cmdp->func(eap);

#ifdef FEAT_WINDOWS
    postponed_split_flags = 0;
    postponed_split_tab = 0;
#endif
}

/*
* PUBLIC: do_cscope
*/
    void
do_cscope(eap)
    exarg_T *eap;
{
    do_cscope_general(eap, FALSE);
}

/*
* PUBLIC: do_scscope
*
* same as do_cscope, but splits window, too.
*/
    void
do_scscope(eap)
    exarg_T *eap;
{
    do_cscope_general(eap, TRUE);
}

/*
* PUBLIC: do_cstag
*
*/
    void
do_cstag(eap)
    exarg_T *eap;
{
    int ret = FALSE;

    if (*eap->arg == NUL)
    {
(void)EMSG(_("E562: Usage: cstag <ident>"));
return;
    }

    switch (p_csto)
    {
    case 0 :
if (cs_check_for_connections())
{
ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE,
FALSE, *eap->cmdlinep);
if (ret == FALSE)
{
cs_free_tags();
if (msg_col)
msg_putchar('\n');

if (cs_check_for_tags())
ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE);
}
}
else if (cs_check_for_tags())
{
ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE);
}
break;
    case 1 :
if (cs_check_for_tags())
{
ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE);
if (ret == FALSE)
{
if (msg_col)
msg_putchar('\n');

if (cs_check_for_connections())
{
ret = cs_find_common("g", (char *)(eap->arg), eap->forceit,
FALSE, FALSE, *eap->cmdlinep);
if (ret == FALSE)
cs_free_tags();
}
}
}
else if (cs_check_for_connections())
{
ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE,
FALSE, *eap->cmdlinep);
if (ret == FALSE)
cs_free_tags();
}
break;
    default :
break;
    }

    if (!ret)
    {
(void)EMSG(_("E257: cstag: tag not found"));
#if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
g_do_tagpreview = 0;
#endif
    }

} /* do_cscope */


/*
* PUBLIC: cs_find
*
* this simulates a vim_fgets(), but for cscope, returns the next line
* from the cscope output. should only be called from find_tags()
*
* returns TRUE if eof, FALSE otherwise
*/
    int
cs_fgets(buf, size)
    char_u *buf;
    int size;
{
    char *p;

    if ((p = cs_manage_matches(NULL, NULL, -1, Get)) == NULL)
return TRUE;
    vim_strncpy(buf, (char_u *)p, size - 1);

    return FALSE;
} /* cs_fgets */


/*
* PUBLIC: cs_free_tags
*
* called only from do_tag(), when popping the tag stack
*/
    void
cs_free_tags()
{
    cs_manage_matches(NULL, NULL, -1, Free);
}


/*
* PUBLIC: cs_print_tags
*
* called from do_tag()
*/
    void
cs_print_tags()
{
    cs_manage_matches(NULL, NULL, -1, Print);
}


/*
* "cscope_connection([{num} , {dbpath} [, {prepend}]])" function
*
* Checks for the existence of a |cscope| connection. If no
* parameters are specified, then the function returns:
*
* 0, if cscope was not available (not compiled in), or if there
* are no cscope connections; or
* 1, if there is at least one cscope connection.
*
* If parameters are specified, then the value of {num}
* determines how existence of a cscope connection is checked:
*
* {num} Description of existence check
* ----- ------------------------------
* 0 Same as no parameters (e.g., "cscope_connection()").
* 1 Ignore {prepend}, and use partial string matches for
* {dbpath}.
* 2 Ignore {prepend}, and use exact string matches for
* {dbpath}.
* 3 Use {prepend}, use partial string matches for both
* {dbpath} and {prepend}.
* 4 Use {prepend}, use exact string matches for both
* {dbpath} and {prepend}.
*
* Note: All string comparisons are case sensitive!
*/
#if defined(FEAT_EVAL) || defined(PROTO)
    int
cs_connection(num, dbpath, ppath)
    int num;
    char_u *dbpath;
    char_u *ppath;
{
    int i;

    if (num < 0 || num > 4 || (num > 0 && !dbpath))
return FALSE;

    for (i = 0; i < csinfo_size; i++)
    {
if (!csinfo[i].fname)
continue;

if (num == 0)
return TRUE;

switch (num)
{
case 1:
if (strstr(csinfo[i].fname, (char *)dbpath))
return TRUE;
break;
case 2:
if (strcmp(csinfo[i].fname, (char *)dbpath) == 0)
return TRUE;
break;
case 3:
if (strstr(csinfo[i].fname, (char *)dbpath)
&& ((!ppath && !csinfo[i].ppath)
|| (ppath
&& csinfo[i].ppath
&& strstr(csinfo[i].ppath, (char *)ppath))))
return TRUE;
break;
case 4:
if ((strcmp(csinfo[i].fname, (char *)dbpath) == 0)
&& ((!ppath && !csinfo[i].ppath)
|| (ppath
&& csinfo[i].ppath
&& (strcmp(csinfo[i].ppath, (char *)ppath) == 0))))
return TRUE;
break;
}
    }

    return FALSE;
} /* cs_connection */
#endif


/*
* PRIVATE functions
****************************************************************************/

/*
* PRIVATE: cs_add
*
* add cscope database or a directory name (to look for cscope.out)
* to the cscope connection list
*
* MAXPATHL 256
*/
    static int
cs_add(eap)
    exarg_T *eap UNUSED;
{
    char *fname, *ppath, *flags = NULL;

    if ((fname = strtok((char *)NULL, (const char *)" ")) == NULL)
    {
cs_usage_msg(Add);
return CSCOPE_FAILURE;
    }
    if ((ppath = strtok((char *)NULL, (const char *)" ")) != NULL)
flags = strtok((char *)NULL, (const char *)" ");

    return cs_add_common(fname, ppath, flags);
}

    static void
cs_stat_emsg(fname)
    char *fname;
{
    char *stat_emsg = _("E563: stat(%s) error: %d");
    char *buf = (char *)alloc((unsigned)strlen(stat_emsg) + MAXPATHL + 10);

    if (buf != NULL)
    {
(void)sprintf(buf, stat_emsg, fname, errno);
(void)EMSG(buf);
vim_free(buf);
    }
    else
(void)EMSG(_("E563: stat error"));
}


/*
* PRIVATE: cs_add_common
*
* the common routine to add a new cscope connection. called by
* cs_add() and cs_reset(). i really don't like to do this, but this
* routine uses a number of goto statements.
*/
    static int
cs_add_common(arg1, arg2, flags)
    char *arg1; /* filename - may contain environment variables */
    char *arg2; /* prepend path - may contain environment variables */
    char *flags;
{
    struct stat statbuf;
    int ret;
    char *fname = NULL;
    char *fname2 = NULL;
    char *ppath = NULL;
    int i;

    /* get the filename (arg1), expand it, and try to stat it */
    if ((fname = (char *)alloc(MAXPATHL + 1)) == NULL)
goto add_err;

    expand_env((char_u *)arg1, (char_u *)fname, MAXPATHL);
    ret = stat(fname, &statbuf);
    if (ret < 0)
    {
staterr:
if (p_csverbose)
cs_stat_emsg(fname);
goto add_err;
    }

    /* get the prepend path (arg2), expand it, and try to stat it */
    if (arg2 != NULL)
    {
struct stat statbuf2;

if ((ppath = (char *)alloc(MAXPATHL + 1)) == NULL)
goto add_err;

expand_env((char_u *)arg2, (char_u *)ppath, MAXPATHL);
ret = stat(ppath, &statbuf2);
if (ret < 0)
goto staterr;
    }

    /* if filename is a directory, append the cscope database name to it */
    if ((statbuf.st_mode & S_IFMT) == S_IFDIR)
    {
fname2 = (char *)alloc((unsigned)(strlen(CSCOPE_DBFILE) + strlen(fname) + 2));
if (fname2 == NULL)
goto add_err;

while (fname[strlen(fname)-1] == '/'
#ifdef WIN32
|| fname[strlen(fname)-1] == '\\'
#endif
)
{
fname[strlen(fname)-1] = '\0';
if (fname[0] == '\0')
break;
}
if (fname[0] == '\0')
(void)sprintf(fname2, "/%s", CSCOPE_DBFILE);
else
(void)sprintf(fname2, "%s/%s", fname, CSCOPE_DBFILE);

ret = stat(fname2, &statbuf);
if (ret < 0)
{
if (p_csverbose)
cs_stat_emsg(fname2);
goto add_err;
}

i = cs_insert_filelist(fname2, ppath, flags, &statbuf);
    }
#if defined(UNIX)
    else if (S_ISREG(statbuf.st_mode) || S_ISLNK(statbuf.st_mode))
#else
/* WIN32 - substitute define S_ISREG from os_unix.h */
    else if (((statbuf.st_mode) & S_IFMT) == S_IFREG)
#endif
    {
i = cs_insert_filelist(fname, ppath, flags, &statbuf);
    }
    else
    {
if (p_csverbose)
(void)EMSG2(
_("E564: %s is not a directory or a valid cscope database"),
fname);
goto add_err;
    }

    if (i != -1)
    {
if (cs_create_connection(i) == CSCOPE_FAILURE
|| cs_read_prompt(i) == CSCOPE_FAILURE)
{
cs_release_csp(i, TRUE);
goto add_err;
}

if (p_csverbose)
{
msg_clr_eos();
(void)smsg_attr(hl_attr(HLF_R),
(char_u *)_("Added cscope database %s"),
csinfo[i].fname);
}
    }

    vim_free(fname);
    vim_free(fname2);
    vim_free(ppath);
    return CSCOPE_SUCCESS;

add_err:
    vim_free(fname2);
    vim_free(fname);
    vim_free(ppath);
    return CSCOPE_FAILURE;
} /* cs_add_common */


    static int
cs_check_for_connections()
{
    return (cs_cnt_connections() > 0);
} /* cs_check_for_connections */


    static int
cs_check_for_tags()
{
    return (p_tags[0] != NUL && curbuf->b_p_tags != NULL);
} /* cs_check_for_tags */


/*
* PRIVATE: cs_cnt_connections
*
* count the number of cscope connections
*/
    static int
cs_cnt_connections()
{
    short i;
    short cnt = 0;

    for (i = 0; i < csinfo_size; i++)
    {
if (csinfo[i].fname != NULL)
cnt++;
    }
    return cnt;
} /* cs_cnt_connections */

    static void
cs_reading_emsg(idx)
    int idx; /* connection index */
{
    EMSGN(_("E262: error reading cscope connection %ld"), idx);
}

#define CSREAD_BUFSIZE 2048
/*
* PRIVATE: cs_cnt_matches
*
* count the number of matches for a given cscope connection.
*/
    static int
cs_cnt_matches(idx)
    int idx;
{
    char *stok;
    char *buf;
    int nlines;

    buf = (char *)alloc(CSREAD_BUFSIZE);
    if (buf == NULL)
return 0;
    for (;;)
    {
if (!fgets(buf, CSREAD_BUFSIZE, csinfo[idx].fr_fp))
{
if (feof(csinfo[idx].fr_fp))
errno = EIO;

cs_reading_emsg(idx);

vim_free(buf);
return -1;
}

/*
* If the database is out of date, or there's some other problem,
* cscope will output error messages before the number-of-lines output.
* Display/discard any output that doesn't match what we want.
* Accept "\S*cscope: X lines", also matches "mlcscope".
*/
if ((stok = strtok(buf, (const char *)" ")) == NULL)
continue;
if (strstr((const char *)stok, "cscope:") == NULL)
continue;

if ((stok = strtok(NULL, (const char *)" ")) == NULL)
continue;
nlines = atoi(stok);
if (nlines < 0)
{
nlines = 0;
break;
}

if ((stok = strtok(NULL, (const char *)" ")) == NULL)
continue;
if (strncmp((const char *)stok, "lines", 5))
continue;

break;
    }

    vim_free(buf);
    return nlines;
} /* cs_cnt_matches */


/*
* PRIVATE: cs_create_cmd
*
* Creates the actual cscope command query from what the user entered.
*/
    static char *
cs_create_cmd(csoption, pattern)
    char *csoption;
    char *pattern;
{
    char *cmd;
    short search;
    char *pat;

    switch (csoption[0])
    {
    case '0' : case 's' :
search = 0;
break;
    case '1' : case 'g' :
search = 1;
break;
    case '2' : case 'd' :
search = 2;
break;
    case '3' : case 'c' :
search = 3;
break;
    case '4' : case 't' :
search = 4;
break;
    case '6' : case 'e' :
search = 6;
break;
    case '7' : case 'f' :
search = 7;
break;
    case '8' : case 'i' :
search = 8;
break;
    default :
(void)EMSG(_("E561: unknown cscope search type"));
cs_usage_msg(Find);
return NULL;
    }

    /* Skip white space before the patter, except for text and pattern search,
* they may want to use the leading white space. */
    pat = pattern;
    if (search != 4 && search != 6)
while vim_iswhite(*pat)
++pat;

    if ((cmd = (char *)alloc((unsigned)(strlen(pat) + 2))) == NULL)
return NULL;

    (void)sprintf(cmd, "%d%s", search, pat);

    return cmd;
} /* cs_create_cmd */


/*
* PRIVATE: cs_create_connection
*
* This piece of code was taken/adapted from nvi. do we need to add
* the BSD license notice?
*/
    static int
cs_create_connection(i)
    int i;
{
#ifdef UNIX
    int to_cs[2], from_cs[2];
#endif
    int len;
    char *prog, *cmd, *ppath = NULL;
#ifdef WIN32
    int fd;
    SECURITY_ATTRIBUTES sa;
    PROCESS_INFORMATION pi;
    STARTUPINFO si;
    BOOL pipe_stdin = FALSE, pipe_stdout = FALSE;
    HANDLE stdin_rd, stdout_rd;
    HANDLE stdout_wr, stdin_wr;
    BOOL created;
# ifdef __BORLANDC__
# define OPEN_OH_ARGTYPE long
# else
# if (_MSC_VER >= 1300)
# define OPEN_OH_ARGTYPE intptr_t
# else
# define OPEN_OH_ARGTYPE long
# endif
# endif
#endif

#if defined(UNIX)
    /*
* Cscope reads from to_cs[0] and writes to from_cs[1]; vi reads from
* from_cs[0] and writes to to_cs[1].
*/
    to_cs[0] = to_cs[1] = from_cs[0] = from_cs[1] = -1;
    if (pipe(to_cs) < 0 || pipe(from_cs) < 0)
    {
(void)EMSG(_("E566: Could not create cscope pipes"));
err_closing:
if (to_cs[0] != -1)
(void)close(to_cs[0]);
if (to_cs[1] != -1)
(void)close(to_cs[1]);
if (from_cs[0] != -1)
(void)close(from_cs[0]);
if (from_cs[1] != -1)
(void)close(from_cs[1]);
return CSCOPE_FAILURE;
    }

    switch (csinfo[i].pid = fork())
    {
    case -1:
(void)EMSG(_("E622: Could not fork for cscope"));
goto err_closing;
    case 0: /* child: run cscope. */
if (dup2(to_cs[0], STDIN_FILENO) == -1)
PERROR("cs_create_connection 1");
if (dup2(from_cs[1], STDOUT_FILENO) == -1)
PERROR("cs_create_connection 2");
if (dup2(from_cs[1], STDERR_FILENO) == -1)
PERROR("cs_create_connection 3");

/* close unused */
(void)close(to_cs[1]);
(void)close(from_cs[0]);
#else
/* WIN32 */
/* Create pipes to communicate with cscope */
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.bInheritHandle = TRUE;
sa.lpSecurityDescriptor = NULL;

if (!(pipe_stdin = CreatePipe(&stdin_rd, &stdin_wr, &sa, 0))
|| !(pipe_stdout = CreatePipe(&stdout_rd, &stdout_wr, &sa, 0)))
{
(void)EMSG(_("E566: Could not create cscope pipes"));
err_closing:
if (pipe_stdin)
{
CloseHandle(stdin_rd);
CloseHandle(stdin_wr);
}
if (pipe_stdout)
{
CloseHandle(stdout_rd);
CloseHandle(stdout_wr);
}
return CSCOPE_FAILURE;
}
#endif
/* expand the cscope exec for env var's */
if ((prog = (char *)alloc(MAXPATHL + 1)) == NULL)
{
#ifdef UNIX
return CSCOPE_FAILURE;
#else
/* WIN32 */
goto err_closing;
#endif
}
expand_env((char_u *)p_csprg, (char_u *)prog, MAXPATHL);

/* alloc space to hold the cscope command */
len = (int)(strlen(prog) + strlen(csinfo[i].fname) + 32);
if (csinfo[i].ppath)
{
/* expand the prepend path for env var's */
if ((ppath = (char *)alloc(MAXPATHL + 1)) == NULL)
{
vim_free(prog);
#ifdef UNIX
return CSCOPE_FAILURE;
#else
/* WIN32 */
goto err_closing;
#endif
}
expand_env((char_u *)csinfo[i].ppath, (char_u *)ppath, MAXPATHL);

len += (int)strlen(ppath);
}

if (csinfo[i].flags)
len += (int)strlen(csinfo[i].flags);

if ((cmd = (char *)alloc(len)) == NULL)
{
vim_free(prog);
vim_free(ppath);
#ifdef UNIX
return CSCOPE_FAILURE;
#else
/* WIN32 */
goto err_closing;
#endif
}

/* run the cscope command; is there execl for non-unix systems? */
#if defined(UNIX)
(void)sprintf(cmd, "exec %s -dl -f %s", prog, csinfo[i].fname);
#else
/* WIN32 */
(void)sprintf(cmd, "%s -dl -f %s", prog, csinfo[i].fname);
#endif
if (csinfo[i].ppath != NULL)
{
(void)strcat(cmd, " -P");
(void)strcat(cmd, csinfo[i].ppath);
}
if (csinfo[i].flags != NULL)
{
(void)strcat(cmd, " ");
(void)strcat(cmd, csinfo[i].flags);
}
# ifdef UNIX
      /* on Win32 we still need prog */
vim_free(prog);
# endif
vim_free(ppath);

#if defined(UNIX)
if (execl("/bin/sh", "sh", "-c", cmd, (char *)NULL) == -1)
PERROR(_("cs_create_connection exec failed"));

exit(127);
/* NOTREACHED */
    default: /* parent. */
/*
* Save the file descriptors for later duplication, and
* reopen as streams.
*/
if ((csinfo[i].to_fp = fdopen(to_cs[1], "w")) == NULL)
PERROR(_("cs_create_connection: fdopen for to_fp failed"));
if ((csinfo[i].fr_fp = fdopen(from_cs[0], "r")) == NULL)
PERROR(_("cs_create_connection: fdopen for fr_fp failed"));

/* close unused */
(void)close(to_cs[0]);
(void)close(from_cs[1]);

break;
    }

#else
    /* WIN32 */
    /* Create a new process to run cscope and use pipes to talk with it */
    GetStartupInfo(&si);
    si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
    si.wShowWindow = SW_HIDE; /* Hide child application window */
    si.hStdOutput = stdout_wr;
    si.hStdError = stdout_wr;
    si.hStdInput = stdin_rd;
    created = CreateProcess(NULL, cmd, NULL, NULL, TRUE, CREATE_NEW_CONSOLE,
NULL, NULL, &si, &pi);
    vim_free(prog);
    vim_free(cmd);

    if (!created)
    {
PERROR(_("cs_create_connection exec failed"));
(void)EMSG(_("E623: Could not spawn cscope process"));
goto err_closing;
    }
    /* else */
    csinfo[i].pid = pi.dwProcessId;
    csinfo[i].hProc = pi.hProcess;
    CloseHandle(pi.hThread);

    /* TODO - tidy up after failure to create files on pipe handles. */
    if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdin_wr,
_O_TEXT|_O_APPEND)) < 0)
|| ((csinfo[i].to_fp = _fdopen(fd, "w")) == NULL))
PERROR(_("cs_create_connection: fdopen for to_fp failed"));
    if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdout_rd,
_O_TEXT|_O_RDONLY)) < 0)
|| ((csinfo[i].fr_fp = _fdopen(fd, "r")) == NULL))
PERROR(_("cs_create_connection: fdopen for fr_fp failed"));

    /* Close handles for file descriptors inherited by the cscope process */
    CloseHandle(stdin_rd);
    CloseHandle(stdout_wr);

#endif /* !UNIX */

    return CSCOPE_SUCCESS;
} /* cs_create_connection */


/*
* PRIVATE: cs_find
*
* query cscope using command line interface. parse the output and use tselect
* to allow choices. like Nvi, creates a pipe to send to/from query/cscope.
*
* returns TRUE if we jump to a tag or abort, FALSE if not.
*/
    static int
cs_find(eap)
    exarg_T *eap;
{
    char *opt, *pat;
    int i;

    if (cs_check_for_connections() == FALSE)
    {
(void)EMSG(_("E567: no cscope connections"));
return FALSE;
    }

    if ((opt = strtok((char *)NULL, (const char *)" ")) == NULL)
    {
cs_usage_msg(Find);
return FALSE;
    }

    pat = opt + strlen(opt) + 1;
    if (pat >= (char *)eap->arg + eap_arg_len)
    {
cs_usage_msg(Find);
return FALSE;
    }

    /*
* Let's replace the NULs written by strtok() with spaces - we need the
* spaces to correctly display the quickfix/location list window's title.
*/
    for (i = 0; i < eap_arg_len; ++i)
if (NUL == eap->arg[i])
eap->arg[i] = ' ';

    return cs_find_common(opt, pat, eap->forceit, TRUE,
eap->cmdidx == CMD_lcscope, *eap->cmdlinep);
} /* cs_find */


/*
* PRIVATE: cs_find_common
*
* common code for cscope find, shared by cs_find() and do_cstag()
*/
    static int
cs_find_common(opt, pat, forceit, verbose, use_ll, cmdline)
    char *opt;
    char *pat;
    int forceit;
    int verbose;
    int use_ll;
    char_u *cmdline;
{
    int i;
    char *cmd;
    int *nummatches;
    int totmatches;
#ifdef FEAT_QUICKFIX
    char cmdletter;
    char *qfpos;

    /* get cmd letter */
    switch (opt[0])
    {
    case '0' :
cmdletter = 's';
break;
    case '1' :
cmdletter = 'g';
break;
    case '2' :
cmdletter = 'd';
break;
    case '3' :
cmdletter = 'c';
break;
    case '4' :
cmdletter = 't';
break;
    case '6' :
cmdletter = 'e';
break;
    case '7' :
cmdletter = 'f';
break;
    case '8' :
cmdletter = 'i';
break;
    default :
cmdletter = opt[0];
    }

    qfpos = (char *)vim_strchr(p_csqf, cmdletter);
    if (qfpos != NULL)
    {
qfpos++;
/* next symbol must be + or - */
if (strchr(CSQF_FLAGS, *qfpos) == NULL)
{
char *nf = _("E469: invalid cscopequickfix flag %c for %c");
char *buf = (char *)alloc((unsigned)strlen(nf));

/* strlen will be enough because we use chars */
if (buf != NULL)
{
sprintf(buf, nf, *qfpos, *(qfpos-1));
(void)EMSG(buf);
vim_free(buf);
}
return FALSE;
}

# ifdef FEAT_AUTOCMD
if (*qfpos != '0')
{
apply_autocmds(EVENT_QUICKFIXCMDPRE, (char_u *)"cscope",
curbuf->b_fname, TRUE, curbuf);
# ifdef FEAT_EVAL
if (did_throw || force_abort)
return FALSE;
# endif
}
# endif
    }
#endif

    /* create the actual command to send to cscope */
    cmd = cs_create_cmd(opt, pat);
    if (cmd == NULL)
return FALSE;

    nummatches = (int *)alloc(sizeof(int)*csinfo_size);
    if (nummatches == NULL)
return FALSE;

    /* send query to all open connections, then count the total number
* of matches so we can alloc matchesp all in one swell foop
*/
    for (i = 0; i < csinfo_size; i++)
nummatches[i] = 0;
    totmatches = 0;
    for (i = 0; i < csinfo_size; i++)
    {
if (csinfo[i].fname == NULL || csinfo[i].to_fp == NULL)
continue;

/* send cmd to cscope */
(void)fprintf(csinfo[i].to_fp, "%s\n", cmd);
(void)fflush(csinfo[i].to_fp);

nummatches[i] = cs_cnt_matches(i);

if (nummatches[i] > -1)
totmatches += nummatches[i];

if (nummatches[i] == 0)
(void)cs_read_prompt(i);
    }
    vim_free(cmd);

    if (totmatches == 0)
    {
char *nf = _("E259: no matches found for cscope query %s of %s");
char *buf;

if (!verbose)
{
vim_free(nummatches);
return FALSE;
}

buf = (char *)alloc((unsigned)(strlen(opt) + strlen(pat) + strlen(nf)));
if (buf == NULL)
(void)EMSG(nf);
else
{
sprintf(buf, nf, opt, pat);
(void)EMSG(buf);
vim_free(buf);
}
vim_free(nummatches);
return FALSE;
    }

#ifdef FEAT_QUICKFIX
    if (qfpos != NULL && *qfpos != '0' && totmatches > 0)
    {
/* fill error list */
FILE *f;
char_u *tmp = vim_tempname('c');
qf_info_T *qi = NULL;
win_T *wp = NULL;

f = mch_fopen((char *)tmp, "w");
if (f == NULL)
EMSG2(_(e_notopen), tmp);
else
{
cs_file_results(f, nummatches);
fclose(f);
if (use_ll) /* Use location list */
wp = curwin;
/* '-' starts a new error list */
if (qf_init(wp, tmp, (char_u *)"%f%*\\t%l%*\\t%m",
*qfpos == '-', cmdline) > 0)
{
# ifdef FEAT_WINDOWS
if (postponed_split != 0)
{
win_split(postponed_split > 0 ? postponed_split : 0,
postponed_split_flags);
RESET_BINDING(curwin);
postponed_split = 0;
}
# endif

# ifdef FEAT_AUTOCMD
apply_autocmds(EVENT_QUICKFIXCMDPOST, (char_u *)"cscope",
curbuf->b_fname, TRUE, curbuf);
# endif
if (use_ll)
/*
* In the location list window, use the displayed location
* list. Otherwise, use the location list for the window.
*/
qi = (bt_quickfix(wp->w_buffer) && wp->w_llist_ref != NULL)
? wp->w_llist_ref : wp->w_llist;
qf_jump(qi, 0, 0, forceit);
}
}
mch_remove(tmp);
vim_free(tmp);
vim_free(nummatches);
return TRUE;
    }
    else
#endif /* FEAT_QUICKFIX */
    {
char **matches = NULL, **contexts = NULL;
int matched = 0;

/* read output */
cs_fill_results((char *)pat, totmatches, nummatches, &matches,
&contexts, &matched);
vim_free(nummatches);
if (matches == NULL)
return FALSE;

(void)cs_manage_matches(matches, contexts, matched, Store);

return do_tag((char_u *)pat, DT_CSCOPE, 0, forceit, verbose);
    }

} /* cs_find_common */

/*
* PRIVATE: cs_help
*
* print help
*/
    static int
cs_help(eap)
    exarg_T *eap UNUSED;
{
    cscmd_T *cmdp = cs_cmds;

    (void)MSG_PUTS(_("cscope commands:\n"));
    while (cmdp->name != NULL)
    {
char *help = _(cmdp->help);
int space_cnt = 30 - vim_strsize((char_u *)help);

/* Use %*s rather than %30s to ensure proper alignment in utf-8 */
if (space_cnt < 0)
space_cnt = 0;
(void)smsg((char_u *)_("%-5s: %s%*s (Usage: %s)"),
cmdp->name,
help, space_cnt, " ",
cmdp->usage);
if (strcmp(cmdp->name, "find") == 0)
MSG_PUTS(_("\n"
" c: Find functions calling this function\n"
" d: Find functions called by this function\n"
" e: Find this egrep pattern\n"
" f: Find this file\n"
" g: Find this definition\n"
" i: Find files #including this file\n"
" s: Find this C symbol\n"
" t: Find assignments to\n"));

cmdp++;
    }

    wait_return(TRUE);
    return 0;
} /* cs_help */


    static void
clear_csinfo(i)
    int i;
{
    csinfo[i].fname = NULL;
    csinfo[i].ppath = NULL;
    csinfo[i].flags = NULL;
#if defined(UNIX)
    csinfo[i].st_dev = (dev_t)0;
    csinfo[i].st_ino = (ino_t)0;
#else
    csinfo[i].nVolume = 0;
    csinfo[i].nIndexHigh = 0;
    csinfo[i].nIndexLow = 0;
#endif
    csinfo[i].pid = 0;
    csinfo[i].fr_fp = NULL;
    csinfo[i].to_fp = NULL;
#if defined(WIN32)
    csinfo[i].hProc = NULL;
#endif
}

#ifndef UNIX
static char *GetWin32Error __ARGS((void));

    static char *
GetWin32Error()
{
    char *msg = NULL;
    FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
NULL, GetLastError(), 0, (LPSTR)&msg, 0, NULL);
    if (msg != NULL)
    {
/* remove trailing \r\n */
char *pcrlf = strstr(msg, "\r\n");
if (pcrlf != NULL)
*pcrlf = '\0';
    }
    return msg;
}
#endif

/*
* PRIVATE: cs_insert_filelist
*
* insert a new cscope database filename into the filelist
*/
    static int
cs_insert_filelist(fname, ppath, flags, sb)
    char *fname;
    char *ppath;
    char *flags;
    struct stat *sb UNUSED;
{
    short i, j;
#ifndef UNIX
    HANDLE hFile;
    BY_HANDLE_FILE_INFORMATION bhfi;

    vim_memset(&bhfi, 0, sizeof(bhfi));
    /* On windows 9x GetFileInformationByHandle doesn't work, so skip it */
    if (!mch_windows95())
    {
hFile = CreateFile(fname, FILE_READ_ATTRIBUTES, 0, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
if (p_csverbose)
{
char *cant_msg = _("E625: cannot open cscope database: %s");
char *winmsg = GetWin32Error();

if (winmsg != NULL)
{
(void)EMSG2(cant_msg, winmsg);
LocalFree(winmsg);
}
else
/* subst filename if can't get error text */
(void)EMSG2(cant_msg, fname);
}
return -1;
}
if (!GetFileInformationByHandle(hFile, &bhfi))
{
CloseHandle(hFile);
if (p_csverbose)
(void)EMSG(_("E626: cannot get cscope database information"));
return -1;
}
CloseHandle(hFile);
    }
#endif

    i = -1; /* can be set to the index of an empty item in csinfo */
    for (j = 0; j < csinfo_size; j++)
    {
if (csinfo[j].fname != NULL
#if defined(UNIX)
&& csinfo[j].st_dev == sb->st_dev && csinfo[j].st_ino == sb->st_ino
#else
/* compare pathnames first */
&& ((fullpathcmp(csinfo[j].fname, fname, FALSE) & FPC_SAME)
/* if not Windows 9x, test index file attributes too */
|| (!mch_windows95()
&& csinfo[j].nVolume == bhfi.dwVolumeSerialNumber
&& csinfo[j].nIndexHigh == bhfi.nFileIndexHigh
&& csinfo[j].nIndexLow == bhfi.nFileIndexLow))
#endif
)
{
if (p_csverbose)
(void)EMSG(_("E568: duplicate cscope database not added"));
return -1;
}

if (csinfo[j].fname == NULL && i == -1)
i = j; /* remember first empty entry */
    }

    if (i == -1)
    {
i = csinfo_size;
if (csinfo_size == 0)
{
/* First time allocation: allocate only 1 connection. It should
* be enough for most users. If more is needed, csinfo will be
* reallocated. */
csinfo_size = 1;
csinfo = (csinfo_T *)alloc_clear(sizeof(csinfo_T));
}
else
{
/* Reallocate space for more connections. */
csinfo_size *= 2;
csinfo = vim_realloc(csinfo, sizeof(csinfo_T)*csinfo_size);
}
if (csinfo == NULL)
return -1;
for (j = csinfo_size/2; j < csinfo_size; j++)
clear_csinfo(j);
    }

    if ((csinfo[i].fname = (char *)alloc((unsigned)strlen(fname)+1)) == NULL)
return -1;

    (void)strcpy(csinfo[i].fname, (const char *)fname);

    if (ppath != NULL)
    {
if ((csinfo[i].ppath = (char *)alloc((unsigned)strlen(ppath) + 1)) == NULL)
{
vim_free(csinfo[i].fname);
csinfo[i].fname = NULL;
return -1;
}
(void)strcpy(csinfo[i].ppath, (const char *)ppath);
    } else
csinfo[i].ppath = NULL;

    if (flags != NULL)
    {
if ((csinfo[i].flags = (char *)alloc((unsigned)strlen(flags) + 1)) == NULL)
{
vim_free(csinfo[i].fname);
vim_free(csinfo[i].ppath);
csinfo[i].fname = NULL;
csinfo[i].ppath = NULL;
return -1;
}
(void)strcpy(csinfo[i].flags, (const char *)flags);
    } else
csinfo[i].flags = NULL;

#if defined(UNIX)
    csinfo[i].st_dev = sb->st_dev;
    csinfo[i].st_ino = sb->st_ino;

#else
    csinfo[i].nVolume = bhfi.dwVolumeSerialNumber;
    csinfo[i].nIndexLow = bhfi.nFileIndexLow;
    csinfo[i].nIndexHigh = bhfi.nFileIndexHigh;
#endif
    return i;
} /* cs_insert_filelist */


/*
* PRIVATE: cs_lookup_cmd
*
* find cscope command in command table
*/
    static cscmd_T *
cs_lookup_cmd(eap)
    exarg_T *eap;
{
    cscmd_T *cmdp;
    char *stok;
    size_t len;

    if (eap->arg == NULL)
return NULL;

    /* Store length of eap->arg before it gets modified by strtok(). */
    eap_arg_len = (int)STRLEN(eap->arg);

    if ((stok = strtok((char *)(eap->arg), (const char *)" ")) == NULL)
return NULL;

    len = strlen(stok);
    for (cmdp = cs_cmds; cmdp->name != NULL; ++cmdp)
    {
if (strncmp((const char *)(stok), cmdp->name, len) == 0)
return (cmdp);
    }
    return NULL;
} /* cs_lookup_cmd */


/*
* PRIVATE: cs_kill
*
* nuke em
*/
    static int
cs_kill(eap)
    exarg_T *eap UNUSED;
{
    char *stok;
    short i;

    if ((stok = strtok((char *)NULL, (const char *)" ")) == NULL)
    {
cs_usage_msg(Kill);
return CSCOPE_FAILURE;
    }

    /* only single digit positive and negative integers are allowed */
    if ((strlen(stok) < 2 && VIM_ISDIGIT((int)(stok[0])))
|| (strlen(stok) < 3 && stok[0] == '-'
&& VIM_ISDIGIT((int)(stok[1]))))
i = atoi(stok);
    else
    {
/* It must be part of a name. We will try to find a match
* within all the names in the csinfo data structure
*/
for (i = 0; i < csinfo_size; i++)
{
if (csinfo[i].fname != NULL && strstr(csinfo[i].fname, stok))
break;
}
    }

    if ((i != -1) && (i >= csinfo_size || i < -1 || csinfo[i].fname == NULL))
    {
if (p_csverbose)
(void)EMSG2(_("E261: cscope connection %s not found"), stok);
    }
    else
    {
if (i == -1)
{
for (i = 0; i < csinfo_size; i++)
{
if (csinfo[i].fname)
cs_kill_execute(i, csinfo[i].fname);
}
}
else
cs_kill_execute(i, stok);
    }

    return 0;
} /* cs_kill */


/*
* PRIVATE: cs_kill_execute
*
* Actually kills a specific cscope connection.
*/
    static void
cs_kill_execute(i, cname)
    int i; /* cscope table index */
    char *cname; /* cscope database name */
{
    if (p_csverbose)
    {
msg_clr_eos();
(void)smsg_attr(hl_attr(HLF_R) | MSG_HIST,
(char_u *)_("cscope connection %s closed"), cname);
    }
    cs_release_csp(i, TRUE);
}


/*
* PRIVATE: cs_make_vim_style_matches
*
* convert the cscope output into into a ctags style entry (as might be found
* in a ctags tags file). there's one catch though: cscope doesn't tell you
* the type of the tag you are looking for. for example, in Darren Hiebert's
* ctags (the one that comes with vim), #define's use a line number to find the
* tag in a file while function definitions use a regexp search pattern.
*
* i'm going to always use the line number because cscope does something
* quirky (and probably other things i don't know about):
*
* if you have "# define" in your source file, which is
* perfectly legal, cscope thinks you have "#define". this
* will result in a failed regexp search. :(
*
* besides, even if this particular case didn't happen, the search pattern
* would still have to be modified to escape all the special regular expression
* characters to comply with ctags formatting.
*/
    static char *
cs_make_vim_style_matches(fname, slno, search, tagstr)
    char *fname;
    char *slno;
    char *search;
    char *tagstr;
{
    /* vim style is ctags:
*
* <tagstr>\t<filename>\t<linenum_or_search>"\t<extra>
*
* but as mentioned above, we'll always use the line number and
* put the search pattern (if one exists) as "extra"
*
* buf is used as part of vim's method of handling tags, and
* (i think) vim frees it when you pop your tags and get replaced
* by new ones on the tag stack.
*/
    char *buf;
    int amt;

    if (search != NULL)
    {
amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + strlen(search)+6);
if ((buf = (char *)alloc(amt)) == NULL)
return NULL;

(void)sprintf(buf, "%s\t%s\t%s;\"\t%s", tagstr, fname, slno, search);
    }
    else
    {
amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + 5);
if ((buf = (char *)alloc(amt)) == NULL)
return NULL;

(void)sprintf(buf, "%s\t%s\t%s;\"", tagstr, fname, slno);
    }

    return buf;
} /* cs_make_vim_style_matches */


/*
* PRIVATE: cs_manage_matches
*
* this is kind of hokey, but i don't see an easy way round this..
*
* Store: keep a ptr to the (malloc'd) memory of matches originally
* generated from cs_find(). the matches are originally lines directly
* from cscope output, but transformed to look like something out of a
* ctags. see cs_make_vim_style_matches for more details.
*
* Get: used only from cs_fgets(), this simulates a vim_fgets() to return
* the next line from the cscope output. it basically keeps track of which
* lines have been "used" and returns the next one.
*
* Free: frees up everything and resets
*
* Print: prints the tags
*/
    static char *
cs_manage_matches(matches, contexts, totmatches, cmd)
    char **matches;
    char **contexts;
    int totmatches;
    mcmd_e cmd;
{
    static char **mp = NULL;
    static char **cp = NULL;
    static int cnt = -1;
    static int next = -1;
    char *p = NULL;

    switch (cmd)
    {
    case Store:
assert(matches != NULL);
assert(totmatches > 0);
if (mp != NULL || cp != NULL)
(void)cs_manage_matches(NULL, NULL, -1, Free);
mp = matches;
cp = contexts;
cnt = totmatches;
next = 0;
break;
    case Get:
if (next >= cnt)
return NULL;

p = mp[next];
next++;
break;
    case Free:
if (mp != NULL)
{
if (cnt > 0)
while (cnt--)
{
vim_free(mp[cnt]);
if (cp != NULL)
vim_free(cp[cnt]);
}
vim_free(mp);
vim_free(cp);
}
mp = NULL;
cp = NULL;
cnt = 0;
next = 0;
break;
    case Print:
cs_print_tags_priv(mp, cp, cnt);
break;
    default: /* should not reach here */
(void)EMSG(_("E570: fatal error in cs_manage_matches"));
return NULL;
    }

    return p;
} /* cs_manage_matches */


/*
* PRIVATE: cs_parse_results
*
* parse cscope output
*/
    static char *
cs_parse_results(cnumber, buf, bufsize, context, linenumber, search)
    int cnumber;
    char *buf;
    int bufsize;
    char **context;
    char **linenumber;
    char **search;
{
    int ch;
    char *p;
    char *name;

    if (fgets(buf, bufsize, csinfo[cnumber].fr_fp) == NULL)
    {
if (feof(csinfo[cnumber].fr_fp))
errno = EIO;

cs_reading_emsg(cnumber);

return NULL;
    }

/* If the line's too long for the buffer, discard it. */
    if ((p = strchr(buf, '\n')) == NULL)
    {
while ((ch = getc(csinfo[cnumber].fr_fp)) != EOF && ch != '\n')
;
return NULL;
    }
    *p = '\0';

    /*
* cscope output is in the following format:
*
* <filename> <context> <line number> <pattern>
*/
    if ((name = strtok((char *)buf, (const char *)" ")) == NULL)
return NULL;
    if ((*context = strtok(NULL, (const char *)" ")) == NULL)
return NULL;
    if ((*linenumber = strtok(NULL, (const char *)" ")) == NULL)
return NULL;
    *search = *linenumber + strlen(*linenumber) + 1; /* +1 to skip \0 */

    /* --- nvi ---
* If the file is older than the cscope database, that is,
* the database was built since the file was last modified,
* or there wasn't a search string, use the line number.
*/
    if (strcmp(*search, "<unknown>") == 0)
*search = NULL;

    name = cs_resolve_file(cnumber, name);
    return name;
}

#ifdef FEAT_QUICKFIX
/*
* PRIVATE: cs_file_results
*
* write cscope find results to file
*/
    static void
cs_file_results(f, nummatches_a)
    FILE *f;
    int *nummatches_a;
{
    int i, j;
    char *buf;
    char *search, *slno;
    char *fullname;
    char *cntx;
    char *context;

    buf = (char *)alloc(CSREAD_BUFSIZE);
    if (buf == NULL)
return;

    for (i = 0; i < csinfo_size; i++)
    {
if (nummatches_a[i] < 1)
continue;

for (j = 0; j < nummatches_a[i]; j++)
{
if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx,
&slno, &search)) == NULL)
continue;

context = (char *)alloc((unsigned)strlen(cntx)+5);
if (context == NULL)
continue;

if (strcmp(cntx, "<global>")==0)
strcpy(context, "<<global>>");
else
sprintf(context, "<<%s>>", cntx);

if (search == NULL)
fprintf(f, "%s\t%s\t%s\n", fullname, slno, context);
else
fprintf(f, "%s\t%s\t%s %s\n", fullname, slno, context, search);

vim_free(context);
vim_free(fullname);
} /* for all matches */

(void)cs_read_prompt(i);

    } /* for all cscope connections */
    vim_free(buf);
}
#endif

/*
* PRIVATE: cs_fill_results
*
* get parsed cscope output and calls cs_make_vim_style_matches to convert
* into ctags format
* When there are no matches sets "*matches_p" to NULL.
*/
    static void
cs_fill_results(tagstr, totmatches, nummatches_a, matches_p, cntxts_p, matched)
    char *tagstr;
    int totmatches;
    int *nummatches_a;
    char ***matches_p;
    char ***cntxts_p;
    int *matched;
{
    int i, j;
    char *buf;
    char *search, *slno;
    int totsofar = 0;
    char **matches = NULL;
    char **cntxts = NULL;
    char *fullname;
    char *cntx;

    assert(totmatches > 0);

    buf = (char *)alloc(CSREAD_BUFSIZE);
    if (buf == NULL)
return;

    if ((matches = (char **)alloc(sizeof(char *) * totmatches)) == NULL)
goto parse_out;
    if ((cntxts = (char **)alloc(sizeof(char *) * totmatches)) == NULL)
goto parse_out;

    for (i = 0; i < csinfo_size; i++)
    {
if (nummatches_a[i] < 1)
continue;

for (j = 0; j < nummatches_a[i]; j++)
{
if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx,
&slno, &search)) == NULL)
continue;

matches[totsofar] = cs_make_vim_style_matches(fullname, slno,
search, tagstr);

vim_free(fullname);

if (strcmp(cntx, "<global>") == 0)
cntxts[totsofar] = NULL;
else
/* note: if vim_strsave returns NULL, then the context
* will be "<global>", which is misleading.
*/
cntxts[totsofar] = (char *)vim_strsave((char_u *)cntx);

if (matches[totsofar] != NULL)
totsofar++;

} /* for all matches */

(void)cs_read_prompt(i);

    } /* for all cscope connections */

parse_out:
    if (totsofar == 0)
    {
/* No matches, free the arrays and return NULL in "*matches_p". */
vim_free(matches);
matches = NULL;
vim_free(cntxts);
cntxts = NULL;
    }
    *matched = totsofar;
    *matches_p = matches;
    *cntxts_p = cntxts;

    vim_free(buf);
} /* cs_fill_results */


/* get the requested path components */
    static char *
cs_pathcomponents(path)
    char *path;
{
    int i;
    char *s;

    if (p_cspc == 0)
return path;

    s = path + strlen(path) - 1;
    for (i = 0; i < p_cspc; ++i)
while (s > path && *--s != '/'
#ifdef WIN32
&& *--s != '\\'
#endif
)
;
    if ((s > path && *s == '/')
#ifdef WIN32
|| (s > path && *s == '\\')
#endif
)
++s;
    return s;
}

/*
* PRIVATE: cs_print_tags_priv
*
* called from cs_manage_matches()
*/
    static void
cs_print_tags_priv(matches, cntxts, num_matches)
    char **matches;
    char **cntxts;
    int num_matches;
{
    char *buf = NULL;
    int bufsize = 0; /* Track available bufsize */
    int newsize = 0;
    char *ptag;
    char *fname, *lno, *extra, *tbuf;
    int i, idx, num;
    char *globalcntx = "GLOBAL";
    char *cntxformat = " <<%s>>";
    char *context;
    char *cstag_msg = _("Cscope tag: %s");
    char *csfmt_str = "%4d %6s ";

    assert (num_matches > 0);

    if ((tbuf = (char *)alloc((unsigned)strlen(matches[0]) + 1)) == NULL)
return;

    strcpy(tbuf, matches[0]);
    ptag = strtok(tbuf, "\t");

    newsize = (int)(strlen(cstag_msg) + strlen(ptag));
    buf = (char *)alloc(newsize);
    if (buf != NULL)
    {
bufsize = newsize;
(void)sprintf(buf, cstag_msg, ptag);
MSG_PUTS_ATTR(buf, hl_attr(HLF_T));
    }

    vim_free(tbuf);

    MSG_PUTS_ATTR(_("\n # line"), hl_attr(HLF_T)); /* strlen is 7 */
    msg_advance(msg_col + 2);
    MSG_PUTS_ATTR(_("filename / context / line\n"), hl_attr(HLF_T));

    num = 1;
    for (i = 0; i < num_matches; i++)
    {
idx = i;

/* if we really wanted to, we could avoid this malloc and strcpy
* by parsing matches[i] on the fly and placing stuff into buf
* directly, but that's too much of a hassle
*/
if ((tbuf = (char *)alloc((unsigned)strlen(matches[idx]) + 1)) == NULL)
continue;
(void)strcpy(tbuf, matches[idx]);

if (strtok(tbuf, (const char *)"\t") == NULL)
continue;
if ((fname = strtok(NULL, (const char *)"\t")) == NULL)
continue;
if ((lno = strtok(NULL, (const char *)"\t")) == NULL)
continue;
extra = strtok(NULL, (const char *)"\t");

lno[strlen(lno)-2] = '\0'; /* ignore ;" at the end */

/* hopefully 'num' (num of matches) will be less than 10^16 */
newsize = (int)(strlen(csfmt_str) + 16 + strlen(lno));
if (bufsize < newsize)
{
buf = (char *)vim_realloc(buf, newsize);
if (buf == NULL)
bufsize = 0;
else
bufsize = newsize;
}
if (buf != NULL)
{
/* csfmt_str = "%4d %6s "; */
(void)sprintf(buf, csfmt_str, num, lno);
MSG_PUTS_ATTR(buf, hl_attr(HLF_CM));
}
MSG_PUTS_LONG_ATTR(cs_pathcomponents(fname), hl_attr(HLF_CM));

/* compute the required space for the context */
if (cntxts[idx] != NULL)
context = cntxts[idx];
else
context = globalcntx;
newsize = (int)(strlen(context) + strlen(cntxformat));

if (bufsize < newsize)
{
buf = (char *)vim_realloc(buf, newsize);
if (buf == NULL)
bufsize = 0;
else
bufsize = newsize;
}
if (buf != NULL)
{
(void)sprintf(buf, cntxformat, context);

/* print the context only if it fits on the same line */
if (msg_col + (int)strlen(buf) >= (int)Columns)
msg_putchar('\n');
msg_advance(12);
MSG_PUTS_LONG(buf);
msg_putchar('\n');
}
if (extra != NULL)
{
msg_advance(13);
MSG_PUTS_LONG(extra);
}

vim_free(tbuf); /* only after printing extra due to strtok use */

if (msg_col)
msg_putchar('\n');

ui_breakcheck();
if (got_int)
{
got_int = FALSE; /* don't print any more matches */
break;
}

num++;
    } /* for all matches */

    vim_free(buf);
} /* cs_print_tags_priv */


/*
* PRIVATE: cs_read_prompt
*
* read a cscope prompt (basically, skip over the ">> ")
*/
    static int
cs_read_prompt(i)
    int i;
{
    int ch;
    char *buf = NULL; /* buffer for possible error message from cscope */
    int bufpos = 0;
    char *cs_emsg;
    int maxlen;
    static char *eprompt = "Press the RETURN key to continue:";
    int epromptlen = (int)strlen(eprompt);
    int n;

    cs_emsg = _("E609: Cscope error: %s");
    /* compute maximum allowed len for Cscope error message */
    maxlen = (int)(IOSIZE - strlen(cs_emsg));

    for (;;)
    {
while ((ch = getc(csinfo[i].fr_fp)) != EOF && ch != CSCOPE_PROMPT[0])
/* if there is room and char is printable */
if (bufpos < maxlen - 1 && vim_isprintc(ch))
{
if (buf == NULL) /* lazy buffer allocation */
buf = (char *)alloc(maxlen);
if (buf != NULL)
{
/* append character to the message */
buf[bufpos++] = ch;
buf[bufpos] = NUL;
if (bufpos >= epromptlen
&& strcmp(&buf[bufpos - epromptlen], eprompt) == 0)
{
/* remove eprompt from buf */
buf[bufpos - epromptlen] = NUL;

/* print message to user */
(void)EMSG2(cs_emsg, buf);

/* send RETURN to cscope */
(void)putc('\n', csinfo[i].to_fp);
(void)fflush(csinfo[i].to_fp);

/* clear buf */
bufpos = 0;
buf[bufpos] = NUL;
}
}
}

for (n = 0; n < (int)strlen(CSCOPE_PROMPT); ++n)
{
if (n > 0)
ch = getc(csinfo[i].fr_fp);
if (ch == EOF)
{
PERROR("cs_read_prompt EOF");
if (buf != NULL && buf[0] != NUL)
(void)EMSG2(cs_emsg, buf);
else if (p_csverbose)
cs_reading_emsg(i); /* don't have additional information */
cs_release_csp(i, TRUE);
vim_free(buf);
return CSCOPE_FAILURE;
}

if (ch != CSCOPE_PROMPT[n])
{
ch = EOF;
break;
}
}

if (ch == EOF)
continue; /* didn't find the prompt */
break; /* did find the prompt */
    }

    vim_free(buf);
    return CSCOPE_SUCCESS;
}

#if defined(UNIX) && defined(SIGALRM)
/*
* Used to catch and ignore SIGALRM below.
*/
    static RETSIGTYPE
sig_handler SIGDEFARG(sigarg)
{
    /* do nothing */
    SIGRETURN;
}
#endif

/*
* PRIVATE: cs_release_csp
*
* Does the actual free'ing for the cs ptr with an optional flag of whether
* or not to free the filename. Called by cs_kill and cs_reset.
*/
    static void
cs_release_csp(i, freefnpp)
    int i;
    int freefnpp;
{
    /*
* Trying to exit normally (not sure whether it is fit to UNIX cscope
*/
    if (csinfo[i].to_fp != NULL)
    {
(void)fputs("q\n", csinfo[i].to_fp);
(void)fflush(csinfo[i].to_fp);
    }
#if defined(UNIX)
    {
int waitpid_errno;
int pstat;
pid_t pid;

# if defined(HAVE_SIGACTION)
struct sigaction sa, old;

/* Use sigaction() to limit the waiting time to two seconds. */
sigemptyset(&sa.sa_mask);
sa.sa_handler = sig_handler;
# ifdef SA_NODEFER
sa.sa_flags = SA_NODEFER;
# else
sa.sa_flags = 0;
# endif
sigaction(SIGALRM, &sa, &old);
alarm(2); /* 2 sec timeout */

/* Block until cscope exits or until timer expires */
pid = waitpid(csinfo[i].pid, &pstat, 0);
waitpid_errno = errno;

/* cancel pending alarm if still there and restore signal */
alarm(0);
sigaction(SIGALRM, &old, NULL);
# else
int waited;

/* Can't use sigaction(), loop for two seconds. First yield the CPU
* to give cscope a chance to exit quickly. */
sleep(0);
for (waited = 0; waited < 40; ++waited)
{
pid = waitpid(csinfo[i].pid, &pstat, WNOHANG);
waitpid_errno = errno;
if (pid != 0)
break; /* break unless the process is still running */
mch_delay(50L, FALSE); /* sleep 50 ms */
}
# endif
/*
* If the cscope process is still running: kill it.
* Safety check: If the PID would be zero here, the entire X session
* would be killed. -1 and 1 are dangerous as well.
*/
if (pid < 0 && csinfo[i].pid > 1)
{
# ifdef ECHILD
int alive = TRUE;

if (waitpid_errno == ECHILD)
{
/*
* When using 'vim -g', vim is forked and cscope process is
* no longer a child process but a sibling. So waitpid()
* fails with errno being ECHILD (No child processes).
* Don't send SIGKILL to cscope immediately but wait
* (polling) for it to exit normally as result of sending
* the "q" command, hence giving it a chance to clean up
* its temporary files.
*/
int waited;

sleep(0);
for (waited = 0; waited < 40; ++waited)
{
/* Check whether cscope process is still alive */
if (kill(csinfo[i].pid, 0) != 0)
{
alive = FALSE; /* cscope process no longer exists */
break;
}
mch_delay(50L, FALSE); /* sleep 50ms */
}
}
if (alive)
# endif
{
kill(csinfo[i].pid, SIGKILL);
(void)waitpid(csinfo[i].pid, &pstat, 0);
}
}
    }
#else /* !UNIX */
    if (csinfo[i].hProc != NULL)
    {
/* Give cscope a chance to exit normally */
if (WaitForSingleObject(csinfo[i].hProc, 1000) == WAIT_TIMEOUT)
TerminateProcess(csinfo[i].hProc, 0);
CloseHandle(csinfo[i].hProc);
    }
#endif

    if (csinfo[i].fr_fp != NULL)
(void)fclose(csinfo[i].fr_fp);
    if (csinfo[i].to_fp != NULL)
(void)fclose(csinfo[i].to_fp);

    if (freefnpp)
    {
vim_free(csinfo[i].fname);
vim_free(csinfo[i].ppath);
vim_free(csinfo[i].flags);
    }

    clear_csinfo(i);
} /* cs_release_csp */


/*
* PRIVATE: cs_reset
*
* calls cs_kill on all cscope connections then reinits
*/
    static int
cs_reset(eap)
    exarg_T *eap UNUSED;
{
    char **dblist = NULL, **pplist = NULL, **fllist = NULL;
    int i;
    char buf[20]; /* for sprintf " (#%d)" */

    if (csinfo_size == 0)
return CSCOPE_SUCCESS;

    /* malloc our db and ppath list */
    dblist = (char **)alloc(csinfo_size * sizeof(char *));
    pplist = (char **)alloc(csinfo_size * sizeof(char *));
    fllist = (char **)alloc(csinfo_size * sizeof(char *));
    if (dblist == NULL || pplist == NULL || fllist == NULL)
    {
vim_free(dblist);
vim_free(pplist);
vim_free(fllist);
return CSCOPE_FAILURE;
    }

    for (i = 0; i < csinfo_size; i++)
    {
dblist[i] = csinfo[i].fname;
pplist[i] = csinfo[i].ppath;
fllist[i] = csinfo[i].flags;
if (csinfo[i].fname != NULL)
cs_release_csp(i, FALSE);
    }

    /* rebuild the cscope connection list */
    for (i = 0; i < csinfo_size; i++)
    {
if (dblist[i] != NULL)
{
cs_add_common(dblist[i], pplist[i], fllist[i]);
if (p_csverbose)
{
/* don't use smsg_attr() because we want to display the
* connection number in the same line as
* "Added cscope database..."
*/
sprintf(buf, " (#%d)", i);
MSG_PUTS_ATTR(buf, hl_attr(HLF_R));
}
}
vim_free(dblist[i]);
vim_free(pplist[i]);
vim_free(fllist[i]);
    }
    vim_free(dblist);
    vim_free(pplist);
    vim_free(fllist);

    if (p_csverbose)
MSG_ATTR(_("All cscope databases reset"), hl_attr(HLF_R) | MSG_HIST);
    return CSCOPE_SUCCESS;
} /* cs_reset */


/*
* PRIVATE: cs_resolve_file
*
* construct the full pathname to a file found in the cscope database.
* (Prepends ppath, if there is one and if it's not already prepended,
* otherwise just uses the name found.)
*
* we need to prepend the prefix because on some cscope's (e.g., the one that
* ships with Solaris 2.6), the output never has the prefix prepended.
* contrast this with my development system (Digital Unix), which does.
*/
    static char *
cs_resolve_file(i, name)
    int i;
    char *name;
{
    char *fullname;
    int len;

    /*
* ppath is freed when we destroy the cscope connection.
* fullname is freed after cs_make_vim_style_matches, after it's been
* copied into the tag buffer used by vim
*/
    len = (int)(strlen(name) + 2);
    if (csinfo[i].ppath != NULL)
len += (int)strlen(csinfo[i].ppath);

    if ((fullname = (char *)alloc(len)) == NULL)
return NULL;

    /*
* note/example: this won't work if the cscope output already starts
* "../.." and the prefix path is also "../..". if something like this
* happens, you are screwed up and need to fix how you're using cscope.
*/
    if (csinfo[i].ppath != NULL &&
(strncmp(name, csinfo[i].ppath, strlen(csinfo[i].ppath)) != 0) &&
(name[0] != '/')
#ifdef WIN32
&& name[0] != '\\' && name[1] != ':'
#endif
)
(void)sprintf(fullname, "%s/%s", csinfo[i].ppath, name);
    else
(void)sprintf(fullname, "%s", name);

    return fullname;
} /* cs_resolve_file */


/*
* PRIVATE: cs_show
*
* show all cscope connections
*/
    static int
cs_show(eap)
    exarg_T *eap UNUSED;
{
    short i;
    if (cs_cnt_connections() == 0)
MSG_PUTS(_("no cscope connections\n"));
    else
    {
MSG_PUTS_ATTR(
_(" # pid database name prepend path\n"),
hl_attr(HLF_T));
for (i = 0; i < csinfo_size; i++)
{
if (csinfo[i].fname == NULL)
continue;

if (csinfo[i].ppath != NULL)
(void)smsg((char_u *)"%2d %-5ld %-34s %-32s",
i, (long)csinfo[i].pid, csinfo[i].fname, csinfo[i].ppath);
else
(void)smsg((char_u *)"%2d %-5ld %-34s <none>",
i, (long)csinfo[i].pid, csinfo[i].fname);
}
    }

    wait_return(TRUE);
    return CSCOPE_SUCCESS;
} /* cs_show */


/*
* PUBLIC: cs_end
*
* Only called when VIM exits to quit any cscope sessions.
*/
    void
cs_end()
{
    int i;

    for (i = 0; i < csinfo_size; i++)
cs_release_csp(i, TRUE);
    vim_free(csinfo);
    csinfo_size = 0;
}

#endif /* FEAT_CSCOPE */

/* the end */
Something went wrong with that request. Please try again.