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[] = "$Id: ex_map.c,v 10.11 2001/06/25 15:19:17 skimo Exp $"; 14 #endif /* not lint */ 15 16 #include <sys/types.h> 17 #include <sys/queue.h> 18 #include <sys/time.h> 19 20 #include <bitstring.h> 21 #include <ctype.h> 22 #include <limits.h> 23 #include <stdio.h> 24 #include <stdlib.h> 25 #include <string.h> 26 27 #include "../common/common.h" 28 29 /* 30 * ex_map -- :map[!] [input] [replacement] 31 * Map a key/string or display mapped keys. 32 * 33 * Historical note: 34 * Historic vi maps were fairly bizarre, and likely to differ in 35 * very subtle and strange ways from this implementation. Two 36 * things worth noting are that vi would often hang or drop core 37 * if the map was strange enough (ex: map X "xy$@x^V), or, simply 38 * not work. One trick worth remembering is that if you put a 39 * mark at the start of the map, e.g. map X mx"xy ...), or if you 40 * put the map in a .exrc file, things would often work much better. 41 * No clue why. 42 * 43 * PUBLIC: int ex_map(SCR *, EXCMD *); 44 */ 45 int 46 ex_map(SCR *sp, EXCMD *cmdp) 47 { 48 seq_t stype; 49 CHAR_T *input, *p; 50 51 stype = FL_ISSET(cmdp->iflags, E_C_FORCE) ? SEQ_INPUT : SEQ_COMMAND; 52 53 switch (cmdp->argc) { 54 case 0: 55 if (seq_dump(sp, stype, 1) == 0) 56 msgq(sp, M_INFO, stype == SEQ_INPUT ? 57 "132|No input map entries" : 58 "133|No command map entries"); 59 return (0); 60 case 2: 61 input = cmdp->argv[0]->bp; 62 break; 63 default: 64 abort(); 65 } 66 67 /* 68 * If the mapped string is #[0-9]* (and wasn't quoted) then store the 69 * function key mapping. If the screen specific routine has been set, 70 * call it as well. Note, the SEQ_FUNCMAP type is persistent across 71 * screen types, maybe the next screen type will get it right. 72 */ 73 if (input[0] == '#' && isdigit(input[1])) { 74 for (p = input + 2; isdigit(*p); ++p); 75 if (p[0] != '\0') 76 goto nofunc; 77 78 if (seq_set(sp, NULL, 0, input, cmdp->argv[0]->len, 79 cmdp->argv[1]->bp, cmdp->argv[1]->len, stype, 80 SEQ_FUNCMAP | SEQ_USERDEF)) 81 return (1); 82 return (sp->gp->scr_fmap == NULL ? 0 : 83 sp->gp->scr_fmap(sp, stype, input, cmdp->argv[0]->len, 84 cmdp->argv[1]->bp, cmdp->argv[1]->len)); 85 } 86 87 /* Some single keys may not be remapped in command mode. */ 88 nofunc: if (stype == SEQ_COMMAND && input[1] == '\0') 89 switch (KEY_VAL(sp, input[0])) { 90 case K_COLON: 91 case K_ESCAPE: 92 case K_NL: 93 msgq(sp, M_ERR, 94 "134|The %s character may not be remapped", 95 KEY_NAME(sp, input[0])); 96 return (1); 97 } 98 return (seq_set(sp, NULL, 0, input, cmdp->argv[0]->len, 99 cmdp->argv[1]->bp, cmdp->argv[1]->len, stype, SEQ_USERDEF)); 100 } 101 102 /* 103 * ex_unmap -- (:unmap[!] key) 104 * Unmap a key. 105 * 106 * PUBLIC: int ex_unmap(SCR *, EXCMD *); 107 */ 108 int 109 ex_unmap(SCR *sp, EXCMD *cmdp) 110 { 111 if (seq_delete(sp, cmdp->argv[0]->bp, cmdp->argv[0]->len, 112 FL_ISSET(cmdp->iflags, E_C_FORCE) ? SEQ_INPUT : SEQ_COMMAND)) { 113 msgq_wstr(sp, M_INFO, 114 cmdp->argv[0]->bp, "135|\"%s\" isn't currently mapped"); 115 return (1); 116 } 117 return (0); 118 } 119