projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 658ebcd4 BJ |
1 | #include "ex.h" |
| 2 | #include "ex_re.h" | |
| 3 | #include "ex_vis.h" | |
| 4 | #include "ex_tty.h" | |
| 5 | /* | |
| 6 | * Ex - a text editor | |
| 7 | * Bill Joy UCB June 1977 | |
| 8 | */ | |
| 9 | ||
| 10 | oop() | |
| 11 | { | |
| 12 | #ifndef VISUAL | |
| 13 | ||
| 14 | error("No open in this version"); | |
| 15 | } | |
| 16 | #endif | |
| 17 | #ifdef VISUAL | |
| 18 | char *ic, atube[TUBESIZE + LBSIZE]; | |
| 19 | int lines; | |
| 20 | ||
| 21 | if (!value(OPEN)) | |
| 22 | error("Can't open unless open option is set"); | |
| 23 | if (OS) | |
| 24 | error("Can't open on a terminal which overstrikes (yet)"); | |
| 25 | VCOLUMNS = COLUMNS; | |
| 26 | if (!CA && AM) | |
| 27 | VCOLUMNS--; | |
| 28 | visual = 0; | |
| 29 | setdot(); | |
| 30 | nonzero(); | |
| 31 | skipwh(); | |
| 32 | if (!inglobal) | |
| 33 | saveall(); | |
| 34 | lines = dol - zero; | |
| 35 | if (peekchar() == '/') { | |
| 36 | compile(getchar(), 1); | |
| 37 | savere(&scanre); | |
| 38 | if (execute(0, addr1) == 0) | |
| 39 | error("Fail|Pattern not found on addressed line"); | |
| 40 | ic = loc1; | |
| 41 | if (ic > linebuf && *ic == 0) | |
| 42 | ic--; | |
| 43 | } else { | |
| 44 | getline(*addr1); | |
| 45 | ic = vskipwh(linebuf); | |
| 46 | } | |
| 47 | newline(); | |
| 48 | VLINES = LINES; | |
| 49 | vok(atube); | |
| 50 | Outchar = &vputchar; | |
| 51 | ostart(); | |
| 52 | vch = 0; | |
| 53 | if (CA) { | |
| 54 | if (outcol == -20) | |
| 55 | outcol = 0; | |
| 56 | vup1(); | |
| 57 | } else if (!UPLINE) | |
| 58 | outline = destline = LINES - 1; | |
| 59 | vholdmove = 1; | |
| 60 | dot = addr1; | |
| 61 | for (;;) { | |
| 62 | if (!vholdmove) | |
| 63 | vup1(); | |
| 64 | vholdmove = 0; | |
| 65 | voinit(); | |
| 66 | if (vmain(ic) == -1 || vch != '.') | |
| 67 | break; | |
| 68 | getDOT(); | |
| 69 | ic = vskipwh(linebuf); | |
| 70 | } | |
| 71 | ostop(); | |
| 72 | inopen = 0; | |
| 73 | if (!CA) | |
| 74 | vup1(); | |
| 75 | flusho(); | |
| 76 | setlastchar('\n'); | |
| 77 | setoutt(); | |
| 78 | netchHAD(lines); | |
| 79 | } | |
| 80 | ||
| 81 | vskipwh(cp) | |
| 82 | register char *cp; | |
| 83 | { | |
| 84 | ||
| 85 | while (white(*cp) && cp[1]) | |
| 86 | cp++; | |
| 87 | return (cp); | |
| 88 | } | |
| 89 | ||
| 90 | voinit() | |
| 91 | { | |
| 92 | register int i; | |
| 93 | ||
| 94 | vcnt = 0; | |
| 95 | vcline = 0; | |
| 96 | i = LINES - 1; | |
| 97 | vclrbyte(vtube[i], VCOLUMNS); | |
| 98 | if (CA) { | |
| 99 | i--; | |
| 100 | vclrbyte(vtube[i], VCOLUMNS); | |
| 101 | } | |
| 102 | vopen(dot, i); | |
| 103 | } | |
| 104 | #endif |