projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 5496c33f KB |
1 | /*- |
| 2 | * Copyright (c) 1992 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * Rodney Ruddock of the University of Guelph. | |
| 7 | * | |
| 8 | * %sccs.include.redist.c% | |
| 9 | */ | |
| 10 | ||
| 11 | #ifndef lint | |
| 12 | static char sccsid[] = "@(#)c.c 5.1 (Berkeley) %G%"; | |
| 13 | #endif /* not lint */ | |
| 14 | ||
| 15 | #include "ed.h" | |
| 16 | ||
| 17 | /* | |
| 18 | * This deletes the range of lines specified and then sets up things | |
| 19 | * for the central input routine. | |
| 20 | */ | |
| 21 | ||
| 22 | void | |
| 23 | c(inputt, errnum) | |
| 24 | ||
| 25 | FILE *inputt; | |
| 26 | int *errnum; | |
| 27 | ||
| 28 | { | |
| 29 | ||
| 30 | if (start_default && End_default) | |
| 31 | start = End = current; | |
| 32 | else if (start_default) | |
| 33 | start = End; | |
| 34 | if (start == NULL) | |
| 35 | { | |
| 36 | *errnum = -1; | |
| 37 | return; | |
| 38 | } | |
| 39 | start_default = End_default = 0; | |
| 40 | ||
| 41 | /* first delete the lines */ | |
| 42 | d(inputt, errnum); | |
| 43 | if (*errnum < 0) | |
| 44 | return; | |
| 45 | *errnum = 0; | |
| 46 | ||
| 47 | if ((current != NULL) && (current != bottom)) | |
| 48 | current = current->above; | |
| 49 | if (sigint_flag) | |
| 50 | SIGINT_ACTION; | |
| 51 | add_flag = 1; | |
| 52 | start_default = End_default = 1; | |
| 53 | /* now get the "change" lines */ | |
| 54 | input_lines(inputt, errnum); | |
| 55 | add_flag = 0; | |
| 56 | } /* end-c */ |