| 1 | /* main.c */
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| 2 |
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| 3 | /* Author:
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| 4 | * Steve Kirkendall
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| 5 | * 14407 SW Teal Blvd. #C
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| 6 | * Beaverton, OR 97005
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| 7 | * kirkenda@cs.pdx.edu
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| 8 | */
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| 9 |
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| 10 |
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| 11 | /* This file contains the main() function of vi */
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| 12 |
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| 13 | /* HACK! bcc needs to disable use of precompiled headers for this file,
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| 14 | or else command line args will not be passed to elvis */
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| 15 | #if __BORLANDC__
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| 16 | #include "borland.h"
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| 17 | #endif
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| 18 |
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| 19 | #include "config.h"
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| 20 | #include <setjmp.h>
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| 21 | #include "vi.h"
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| 22 |
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| 23 | extern trapint(); /* defined below */
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| 24 | extern char *getenv();
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| 25 | jmp_buf jmpenv;
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| 26 |
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| 27 | #ifndef NO_DIGRAPH
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| 28 | static init_digraphs();
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| 29 | #endif
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| 30 |
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| 31 | /*---------------------------------------------------------------------*/
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| 32 |
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| 33 | #if AMIGA
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| 34 | # include "amiwild.c"
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| 35 | main (argc, argv)
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| 36 | #else
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| 37 | # if VMS
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| 38 | # include "vmswild.c"
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| 39 | main (argc, argv)
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| 40 | # else
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| 41 | void main(argc, argv)
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| 42 | # endif
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| 43 | #endif
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| 44 | int argc;
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| 45 | char *argv[];
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| 46 | {
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| 47 | int i;
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| 48 | char *cmd = (char *)0;
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| 49 | char *err = (char *)0;
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| 50 | char *str;
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| 51 | char *tag = (char *)0;
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| 52 |
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| 53 | /* set mode to MODE_VI or MODE_EX depending on program name */
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| 54 | switch (argv[0][strlen(argv[0]) - 1])
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| 55 | {
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| 56 | case 'x': /* "ex" */
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| 57 | mode = MODE_EX;
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| 58 | break;
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| 59 |
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| 60 | case 'w': /* "view" */
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| 61 | mode = MODE_VI;
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| 62 | *o_readonly = TRUE;
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| 63 | break;
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| 64 | #ifndef NO_EXTENSIONS
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| 65 | case 't': /* "edit" or "input" */
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| 66 | mode = MODE_VI;
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| 67 | *o_inputmode = TRUE;
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| 68 | break;
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| 69 | #endif
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| 70 | default: /* "vi" or "elvis" */
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| 71 | mode = MODE_VI;
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| 72 | }
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| 73 |
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| 74 | #ifndef DEBUG
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| 75 | # ifdef SIGQUIT
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| 76 | /* normally, we ignore SIGQUIT. SIGINT is trapped later */
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| 77 | signal(SIGQUIT, SIG_IGN);
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| 78 | # endif
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| 79 | #endif
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| 80 |
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| 81 | /* temporarily ignore SIGINT */
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| 82 | signal(SIGINT, SIG_IGN);
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| 83 |
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| 84 | /* start curses */
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| 85 | initscr();
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| 86 | cbreak();
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| 87 | noecho();
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| 88 | scrollok(stdscr, TRUE);
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| 89 |
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| 90 | /* arrange for deadly signals to be caught */
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| 91 | # ifdef SIGHUP
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| 92 | signal(SIGHUP, (void(*)()) deathtrap);
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| 93 | # endif
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| 94 | # ifndef DEBUG
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| 95 | # ifdef SIGILL
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| 96 | signal(SIGILL, (void(*)()) deathtrap);
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| 97 | # endif
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| 98 | # ifdef SIGBUS
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| 99 | signal(SIGBUS, (void(*)()) deathtrap);
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| 100 | # endif
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| 101 | # ifdef SIGSEGV
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| 102 | signal(SIGSEGV, (void(*)()) deathtrap);
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| 103 | # endif
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| 104 | # ifdef SIGSYS
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| 105 | signal(SIGSYS, (void(*)()) deathtrap);
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| 106 | # endif
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| 107 | # endif /* !DEBUG */
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| 108 | # ifdef SIGPIPE
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| 109 | signal(SIGPIPE, (void(*)()) deathtrap);
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| 110 | # endif
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| 111 | # ifdef SIGTERM
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| 112 | signal(SIGTERM, (void(*)()) deathtrap);
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| 113 | # endif
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| 114 | # ifdef SIGUSR1
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| 115 | signal(SIGUSR1, (void(*)()) deathtrap);
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| 116 | # endif
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| 117 | # ifdef SIGUSR2
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| 118 | signal(SIGUSR2, (void(*)()) deathtrap);
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| 119 | # endif
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| 120 |
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| 121 | /* initialize the options - must be done after initscr(), so that
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| 122 | * we can alter LINES and COLS if necessary.
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| 123 | */
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| 124 | initopts();
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| 125 |
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| 126 | /* map the arrow keys. The KU,KD,KL,and KR variables correspond to
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| 127 | * the :ku=: (etc.) termcap capabilities. The variables are defined
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| 128 | * as part of the curses package.
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| 129 | */
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| 130 | if (has_KU) mapkey(has_KU, "k", WHEN_VICMD|WHEN_INMV, "<Up>");
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| 131 | if (has_KD) mapkey(has_KD, "j", WHEN_VICMD|WHEN_INMV, "<Down>");
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| 132 | if (has_KL) mapkey(has_KL, "h", WHEN_VICMD|WHEN_INMV, "<Left>");
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| 133 | if (has_KR) mapkey(has_KR, "l", WHEN_VICMD|WHEN_INMV, "<Right>");
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| 134 | if (has_HM) mapkey(has_HM, "^", WHEN_VICMD|WHEN_INMV, "<Home>");
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| 135 | if (has_EN) mapkey(has_EN, "$", WHEN_VICMD|WHEN_INMV, "<End>");
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| 136 | if (has_PU) mapkey(has_PU, "\002", WHEN_VICMD|WHEN_INMV, "<PageUp>");
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| 137 | if (has_PD) mapkey(has_PD, "\006", WHEN_VICMD|WHEN_INMV, "<PageDn>");
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| 138 | if (has_KI) mapkey(has_KI, "i", WHEN_VICMD|WHEN_INMV, "<Insert>");
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| 139 | #if MSDOS
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| 140 | # if RAINBOW
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| 141 | if (!strcmp("rainbow", o_term))
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| 142 | {
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| 143 | mapkey("\033[1~", "/", WHEN_VICMD, "<Find>");
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| 144 | mapkey("\033[3~", "x", WHEN_VICMD|WHEN_INMV, "<Remove>");
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| 145 | mapkey("\033[4~", "v", WHEN_VICMD|WHEN_INMV, "<Select>");
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| 146 | mapkey("\033[17~", ":sh\n", WHEN_VICMD, "<Intrpt>");
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| 147 | mapkey("\033[19~", ":q\n", WHEN_VICMD, "<Cancel>");
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| 148 | mapkey("\033[21~", "ZZ", WHEN_VICMD, "<Exit>");
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| 149 | mapkey("\033[26~", "V", WHEN_VICMD|WHEN_INMV, "<AddlOp>");
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| 150 | mapkey("\033[28~", "\\", WHEN_VICMD|WHEN_INMV, "<Help>");
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| 151 | mapkey("\033[29~", "K", WHEN_VICMD|WHEN_INMV, "<Do>");
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| 152 | }
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| 153 | else
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| 154 | # endif /* RAINBOW */
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| 155 | {
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| 156 | mapkey("#S", "x", WHEN_VICMD|WHEN_INMV, "<Delete>");
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| 157 | mapkey("#s", "B", WHEN_VICMD|WHEN_INMV, "^<Left>");
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| 158 | mapkey("#t", "W", WHEN_VICMD|WHEN_INMV, "^<Right>");
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| 159 | }
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| 160 | #else /* not MSDOS */
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| 161 | # if COHERENT
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| 162 | mapkey("\033[P", "x", WHEN_VICMD|WHEN_INMV, "<Del>");
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| 163 | # else
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| 164 | #if AMIGA
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| 165 | mapkey("\233?~", "\\", WHEN_VICMD|WHEN_INMV, "<Help>");
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| 166 | #endif
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| 167 |
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| 168 | if (ERASEKEY != '\177')
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| 169 | {
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| 170 | mapkey("\177", "x", WHEN_VICMD|WHEN_INMV, "<Del>");
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| 171 | }
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| 172 | # endif
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| 173 | #endif
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| 174 |
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| 175 | #ifndef NO_DIGRAPH
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| 176 | init_digraphs();
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| 177 | #endif /* NO_DIGRAPH */
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| 178 |
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| 179 | /* process any flags */
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| 180 | for (i = 1; i < argc && *argv[i] == '-'; i++)
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| 181 | {
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| 182 | switch (argv[i][1])
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| 183 | {
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| 184 | case 'R': /* readonly */
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| 185 | *o_readonly = TRUE;
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| 186 | break;
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| 187 |
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| 188 | case 'L':
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| 189 | case 'r': /* recover */
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| 190 | msg("Use the `elvrec` program to recover lost files");
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| 191 | endmsgs();
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| 192 | refresh();
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| 193 | endwin();
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| 194 | exit(0);
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| 195 | break;
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| 196 |
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| 197 | case 't': /* tag */
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| 198 | if (argv[i][2])
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| 199 | {
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| 200 | tag = argv[i] + 2;
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| 201 | }
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| 202 | else
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| 203 | {
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| 204 | tag = argv[++i];
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| 205 | }
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| 206 | break;
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| 207 |
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| 208 | case 'v': /* vi mode */
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| 209 | mode = MODE_VI;
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| 210 | break;
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| 211 |
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| 212 | case 'e': /* ex mode */
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| 213 | mode = MODE_EX;
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| 214 | break;
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| 215 | #ifndef NO_EXTENSIONS
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| 216 | case 'i': /* input mode */
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| 217 | *o_inputmode = TRUE;
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| 218 | break;
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| 219 | #endif
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| 220 | #ifndef NO_ERRLIST
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| 221 | case 'm': /* use "errlist" as the errlist */
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| 222 | if (argv[i][2])
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| 223 | {
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| 224 | err = argv[i] + 2;
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| 225 | }
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| 226 | else if (i + 1 < argc)
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| 227 | {
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| 228 | err = argv[++i];
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| 229 | }
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| 230 | else
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| 231 | {
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| 232 | err = "";
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| 233 | }
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| 234 | break;
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| 235 | #endif
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| 236 | #ifndef CRUNCH
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| 237 | case 'c': /* run the following command, later */
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| 238 | if (argv[i][2])
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| 239 | {
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| 240 | cmd = argv[i] + 2;
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| 241 | }
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| 242 | else
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| 243 | {
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| 244 | cmd = argv[++i];
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| 245 | }
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| 246 | break;
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| 247 |
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| 248 | case 'w': /* set the window size */
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| 249 | if (argv[i][2])
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| 250 | {
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| 251 | *o_window = atoi(argv[i] + 2);
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| 252 | wset = TRUE;
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| 253 | }
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| 254 | else
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| 255 | {
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| 256 | *o_window = atoi(argv[++i]);
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| 257 | wset = TRUE;
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| 258 | }
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| 259 | break;
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| 260 | #endif
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| 261 | default:
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| 262 | msg("Ignoring unknown flag \"%s\"", argv[i]);
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| 263 | }
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| 264 | }
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| 265 |
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| 266 | /* if we were given an initial ex command, save it... */
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| 267 | if (i < argc && *argv[i] == '+')
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| 268 | {
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| 269 | if (argv[i][1])
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| 270 | {
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| 271 | cmd = argv[i++] + 1;
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| 272 | }
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| 273 | else
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| 274 | {
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| 275 | cmd = "$"; /* "vi + file" means start at EOF */
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| 276 | i++;
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| 277 | }
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| 278 | }
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| 279 |
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| 280 | /* the remaining args are file names. */
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| 281 | if (i < argc)
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| 282 | {
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| 283 | strcpy(args, argv[i]);
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| 284 | while (++i < argc && strlen(args) + 1 + strlen(argv[i]) < sizeof args)
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| 285 | {
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| 286 | strcat(args, " ");
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| 287 | strcat(args, argv[i]);
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| 288 | }
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| 289 | #if MSDOS || TOS
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| 290 | /* expand wildcard characters, if necessary */
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| 291 | if (strchr(args, '*') || strchr(args, '?'))
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| 292 | {
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| 293 | strcpy(args, wildcard(args));
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| 294 | }
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| 295 | #endif
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| 296 | strcpy(tmpblk.c, args);
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| 297 | cmd_args(MARK_UNSET, MARK_UNSET, CMD_ARGS, TRUE, tmpblk.c);
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| 298 | }
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| 299 | else
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| 300 | {
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| 301 | /* empty args list */
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| 302 | args[0] = '\0';
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| 303 | nargs = 1;
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| 304 | argno = -1;
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| 305 | }
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| 306 |
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| 307 | /* perform the .exrc files and EXINIT environment variable */
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| 308 | #ifdef SYSEXRC
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| 309 | doexrc(SYSEXRC);
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| 310 | #endif
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| 311 | #ifdef HMEXRC
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| 312 | str = getenv("HOME");
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| 313 | if (str && *str)
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| 314 | {
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| 315 | strcpy(tmpblk.c, str);
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| 316 | str = tmpblk.c + strlen(tmpblk.c);
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| 317 | #if !VMS
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| 318 | # if AMIGA /* Don't SLASH a device. "Elvis:.exrc" */
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| 319 | if (str[-1] != COLON && str[-1] != SLASH)
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| 320 | # else
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| 321 | if (str[-1] != SLASH)
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| 322 | # endif
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| 323 | {
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| 324 | *str++ = SLASH;
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| 325 | }
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| 326 | #endif
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| 327 | strcpy(str, HMEXRC);
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| 328 | doexrc(tmpblk.c);
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| 329 | }
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| 330 | #endif
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| 331 | #ifndef CRUNCH
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| 332 | if (*o_exrc)
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| 333 | #endif
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| 334 | {
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| 335 | doexrc(EXRC);
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| 336 | }
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| 337 | #ifdef EXINIT
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| 338 | str = getenv(EXINIT);
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| 339 | if (str)
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| 340 | {
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| 341 | exstring(str, strlen(str), ctrl('V'));
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| 342 | }
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| 343 | #endif
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| 344 |
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| 345 | /* search for a tag (or an error) now, if desired */
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| 346 | blkinit();
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| 347 | if (tag)
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| 348 | {
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| 349 | cmd_tag(MARK_FIRST, MARK_FIRST, CMD_TAG, 0, tag);
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| 350 | }
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| 351 | #ifndef NO_ERRLIST
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| 352 | else if (err)
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| 353 | {
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| 354 | cmd_errlist(MARK_FIRST, MARK_FIRST, CMD_ERRLIST, 0, err);
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| 355 | }
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| 356 | #endif
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| 357 |
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| 358 | /* if no tag/err, or tag failed, then start with first arg */
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| 359 | if (tmpfd < 0)
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| 360 | {
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| 361 | /* start with first arg */
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| 362 | cmd_next(MARK_UNSET, MARK_UNSET, CMD_NEXT, FALSE, "");
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| 363 |
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| 364 | /* pretend to do something, just to force a recoverable
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| 365 | * version of the file out to disk
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| 366 | */
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| 367 | ChangeText
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| 368 | {
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| 369 | }
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| 370 | clrflag(file, MODIFIED);
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| 371 | }
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| 372 |
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| 373 | /* now we do the immediate ex command that we noticed before */
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| 374 | if (cmd)
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| 375 | {
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| 376 | doexcmd(cmd);
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| 377 | }
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| 378 |
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| 379 | /* repeatedly call ex() or vi() (depending on the mode) until the
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| 380 | * mode is set to MODE_QUIT
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| 381 | */
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| 382 | while (mode != MODE_QUIT)
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| 383 | {
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| 384 | if (setjmp(jmpenv))
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| 385 | {
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| 386 | /* Maybe we just aborted a change? */
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| 387 | abortdo();
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| 388 | }
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| 389 | signal(SIGINT, (void(*)()) trapint);
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| 390 |
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| 391 | switch (mode)
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| 392 | {
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| 393 | case MODE_VI:
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| 394 | vi();
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| 395 | break;
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| 396 |
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| 397 | case MODE_EX:
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| 398 | ex();
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| 399 | break;
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| 400 | #ifdef DEBUG
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| 401 | default:
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| 402 | msg("mode = %d?", mode);
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| 403 | mode = MODE_QUIT;
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| 404 | #endif
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| 405 | }
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| 406 | }
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| 407 |
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| 408 | /* free up the cut buffers */
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| 409 | cutend();
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| 410 |
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| 411 | /* end curses */
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| 412 | #ifndef NO_CURSORSHAPE
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| 413 | if (has_CQ)
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| 414 | do_CQ();
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| 415 | #endif
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| 416 | endmsgs();
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| 417 | move(LINES - 1, 0);
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| 418 | clrtoeol();
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| 419 | refresh();
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| 420 | endwin();
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| 421 |
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| 422 | exit(0);
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| 423 | /*NOTREACHED*/
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|---|
| 424 | }
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| 425 |
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| 426 |
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| 427 | /*ARGSUSED*/
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| 428 | int trapint(signo)
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| 429 | int signo;
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| 430 | {
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| 431 | beep();
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| 432 | resume_curses(FALSE);
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| 433 | abortdo();
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| 434 | #if OSK
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| 435 | sigmask(-1);
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| 436 | #endif
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| 437 | #if TURBOC || __GNUC__ || _ANSI
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| 438 | signal(signo, (void (*)())trapint);
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|---|
| 439 | #else
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| 440 | signal(signo, trapint);
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|---|
| 441 | #endif
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| 442 | doingglobal = FALSE;
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| 443 |
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| 444 | longjmp(jmpenv, 1);
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| 445 |
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| 446 | return 0;
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| 447 | }
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| 448 |
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| 449 |
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| 450 |
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| 451 | #ifndef NO_DIGRAPH
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| 452 |
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| 453 | /* This stuff us used to build the default digraphs table. */
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| 454 | static char digtable[][4] =
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| 455 | {
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| 456 | # ifdef CS_IBMPC
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| 457 | "C,\200", "u\"\1", "e'\2", "a^\3",
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| 458 | "a\"\4", "a`\5", "a@\6", "c,\7",
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| 459 | "e^\10", "e\"\211", "e`\12", "i\"\13",
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| 460 | "i^\14", "i`\15", "A\"\16", "A@\17",
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| 461 | "E'\20", "ae\21", "AE\22", "o^\23",
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| 462 | "o\"\24", "o`\25", "u^\26", "u`\27",
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| 463 | "y\"\30", "O\"\31", "U\"\32", "a'\240",
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| 464 | "i'!", "o'\"", "u'#", "n~$",
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| 465 | "N~%", "a-&", "o-'", "~?(",
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| 466 | "~!-", "\"<.", "\">/",
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| 467 | # ifdef CS_SPECIAL
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| 468 | "2/+", "4/,", "^+;", "^q<",
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| 469 | "^c=", "^r>", "^t?", "pp]",
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| 470 | "^^^", "oo_", "*a`", "*ba",
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| 471 | "*pc", "*Sd", "*se", "*uf",
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| 472 | "*tg", "*Ph", "*Ti", "*Oj",
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| 473 | "*dk", "*Hl", "*hm", "*En",
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| 474 | "*No", "eqp", "pmq", "ger",
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| 475 | "les", "*It", "*iu", "*/v",
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| 476 | "*=w", "sq{", "^n|", "^2}",
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| 477 | "^3~", "^_\377",
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| 478 | # endif /* CS_SPECIAL */
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|---|
| 479 | # endif /* CS_IBMPC */
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| 480 | # ifdef CS_LATIN1
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|---|
| 481 | "~!!", "a-*", "\">+", "o-:",
|
|---|
| 482 | "\"<>", "~??",
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| 483 |
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|---|
| 484 | "A`@", "A'A", "A^B", "A~C",
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|---|
| 485 | "A\"D", "A@E", "AEF", "C,G",
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|---|
| 486 | "E`H", "E'I", "E^J", "E\"K",
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|---|
| 487 | "I`L", "I'M", "I^N", "I\"O",
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|---|
| 488 | "-DP", "N~Q", "O`R", "O'S",
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|---|
| 489 | "O^T", "O~U", "O\"V", "O/X",
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|---|
| 490 | "U`Y", "U'Z", "U^[", "U\"\\",
|
|---|
| 491 | "Y'_",
|
|---|
| 492 |
|
|---|
| 493 | "a``", "a'a", "a^b", "a~c",
|
|---|
| 494 | "a\"d", "a@e", "aef", "c,g",
|
|---|
| 495 | "e`h", "e'i", "e^j", "e\"k",
|
|---|
| 496 | "i`l", "i'm", "i^n", "i\"o",
|
|---|
| 497 | "-dp", "n~q", "o`r", "o's",
|
|---|
| 498 | "o^t", "o~u", "o\"v", "o/x",
|
|---|
| 499 | "u`y", "u'z", "u^{", "u\"|",
|
|---|
| 500 | "y'~",
|
|---|
| 501 | # endif /* CS_LATIN1 */
|
|---|
| 502 | ""
|
|---|
| 503 | };
|
|---|
| 504 |
|
|---|
| 505 | static init_digraphs()
|
|---|
| 506 | {
|
|---|
| 507 | int i;
|
|---|
| 508 |
|
|---|
| 509 | for (i = 0; *digtable[i]; i++)
|
|---|
| 510 | {
|
|---|
| 511 | do_digraph(FALSE, digtable[i]);
|
|---|
| 512 | }
|
|---|
| 513 | do_digraph(FALSE, (char *)0);
|
|---|
| 514 | return 0;
|
|---|
| 515 | }
|
|---|
| 516 | #endif /* NO_DIGRAPH */
|
|---|
