1 /*- 2 * Copyright (c) 1992, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 1992, 1993, 1994, 1995, 1996 5 * Keith Bostic. All rights reserved. 6 * 7 * See the LICENSE file for redistribution information. 8 */ 9 10 #include "config.h" 11 12 #ifndef lint 13 static const char sccsid[] = "@(#)ex_map.c 10.9 (Berkeley) 3/6/96"; 14 #endif /* not lint */ 15 16 #include <sys/types.h> 17 #include <sys/queue.h> 18 19 #include <bitstring.h> 20 #include <ctype.h> 21 #include <limits.h> 22 #include <stdio.h> 23 #include <stdlib.h> 24 #include <string.h> 25 26 #include "../common/common.h" 27 28 /* 29 * ex_map -- :map[!] [input] [replacement] 30 * Map a key/string or display mapped keys. 31 * 32 * Historical note: 33 * Historic vi maps were fairly bizarre, and likely to differ in 34 * very subtle and strange ways from this implementation. Two 35 * things worth noting are that vi would often hang or drop core 36 * if the map was strange enough (ex: map X "xy$@x^V), or, simply 37 * not work. One trick worth remembering is that if you put a 38 * mark at the start of the map, e.g. map X mx"xy ...), or if you 39 * put the map in a .exrc file, things would often work much better. 40 * No clue why. 41 * 42 * PUBLIC: int ex_map __P((SCR *, EXCMD *)); 43 */ 44 int 45 ex_map(sp, cmdp) 46 SCR *sp; 47 EXCMD *cmdp; 48 { 49 seq_t stype; 50 CHAR_T *input, *p; 51 52 stype = FL_ISSET(cmdp->iflags, E_C_FORCE) ? SEQ_INPUT : SEQ_COMMAND; 53 54 switch (cmdp->argc) { 55 case 0: 56 if (seq_dump(sp, stype, 1) == 0) 57 msgq(sp, M_INFO, stype == SEQ_INPUT ? 58 "132|No input map entries" : 59 "133|No command map entries"); 60 return (0); 61 case 2: 62 input = cmdp->argv[0]->bp; 63 break; 64 default: 65 abort(); 66 } 67 68 /* 69 * If the mapped string is #[0-9]* (and wasn't quoted) then store the 70 * function key mapping. If the screen specific routine has been set, 71 * call it as well. Note, the SEQ_FUNCMAP type is persistent across 72 * screen types, maybe the next screen type will get it right. 73 */ 74 if (input[0] == '#' && isdigit(input[1])) { 75 for (p = input + 2; isdigit(*p); ++p); 76 if (p[0] != '\0') 77 goto nofunc; 78 79 if (seq_set(sp, NULL, 0, input, cmdp->argv[0]->len, 80 cmdp->argv[1]->bp, cmdp->argv[1]->len, stype, 81 SEQ_FUNCMAP | SEQ_USERDEF)) 82 return (1); 83 return (sp->gp->scr_fmap == NULL ? 0 : 84 sp->gp->scr_fmap(sp, stype, input, cmdp->argv[0]->len, 85 cmdp->argv[1]->bp, cmdp->argv[1]->len)); 86 } 87 88 /* Some single keys may not be remapped in command mode. */ 89 nofunc: if (stype == SEQ_COMMAND && input[1] == '\0') 90 switch (KEY_VAL(sp, input[0])) { 91 case K_COLON: 92 case K_ESCAPE: 93 case K_NL: 94 msgq(sp, M_ERR, 95 "134|The %s character may not be remapped", 96 KEY_NAME(sp, input[0])); 97 return (1); 98 } 99 return (seq_set(sp, NULL, 0, input, cmdp->argv[0]->len, 100 cmdp->argv[1]->bp, cmdp->argv[1]->len, stype, SEQ_USERDEF)); 101 } 102 103 /* 104 * ex_unmap -- (:unmap[!] key) 105 * Unmap a key. 106 * 107 * PUBLIC: int ex_unmap __P((SCR *, EXCMD *)); 108 */ 109 int 110 ex_unmap(sp, cmdp) 111 SCR *sp; 112 EXCMD *cmdp; 113 { 114 if (seq_delete(sp, cmdp->argv[0]->bp, cmdp->argv[0]->len, 115 FL_ISSET(cmdp->iflags, E_C_FORCE) ? SEQ_INPUT : SEQ_COMMAND)) { 116 msgq_str(sp, M_INFO, 117 cmdp->argv[0]->bp, "135|\"%s\" isn't currently mapped"); 118 return (1); 119 } 120 return (0); 121 } 122