1 /* $OpenBSD: ex_map.c,v 1.6 2014/11/12 04:28:41 bentley Exp $ */ 2 3 /*- 4 * Copyright (c) 1992, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * Copyright (c) 1992, 1993, 1994, 1995, 1996 7 * Keith Bostic. All rights reserved. 8 * 9 * See the LICENSE file for redistribution information. 10 */ 11 12 #include "config.h" 13 14 #include <sys/types.h> 15 #include <sys/queue.h> 16 17 #include <bitstring.h> 18 #include <ctype.h> 19 #include <limits.h> 20 #include <stdio.h> 21 #include <stdlib.h> 22 #include <string.h> 23 24 #include "../common/common.h" 25 26 /* 27 * ex_map -- :map[!] [input] [replacement] 28 * Map a key/string or display mapped keys. 29 * 30 * Historical note: 31 * Historic vi maps were fairly bizarre, and likely to differ in 32 * very subtle and strange ways from this implementation. Two 33 * things worth noting are that vi would often hang or drop core 34 * if the map was strange enough (ex: map X "xy$@x^V), or, simply 35 * not work. One trick worth remembering is that if you put a 36 * mark at the start of the map, e.g. map X mx"xy ...), or if you 37 * put the map in a .exrc file, things would often work much better. 38 * No clue why. 39 * 40 * PUBLIC: int ex_map(SCR *, EXCMD *); 41 */ 42 int 43 ex_map(SCR *sp, EXCMD *cmdp) 44 { 45 seq_t stype; 46 CHAR_T *input, *p; 47 48 stype = FL_ISSET(cmdp->iflags, E_C_FORCE) ? SEQ_INPUT : SEQ_COMMAND; 49 50 switch (cmdp->argc) { 51 case 0: 52 if (seq_dump(sp, stype, 1) == 0) 53 msgq(sp, M_INFO, stype == SEQ_INPUT ? 54 "132|No input map entries" : 55 "133|No command map entries"); 56 return (0); 57 case 2: 58 input = cmdp->argv[0]->bp; 59 break; 60 default: 61 abort(); 62 } 63 64 /* 65 * If the mapped string is #[0-9]* (and wasn't quoted) then store the 66 * function key mapping. If the screen specific routine has been set, 67 * call it as well. Note, the SEQ_FUNCMAP type is persistent across 68 * screen types, maybe the next screen type will get it right. 69 */ 70 if (input[0] == '#' && isdigit(input[1])) { 71 for (p = input + 2; isdigit(*p); ++p); 72 if (p[0] != '\0') 73 goto nofunc; 74 75 if (seq_set(sp, NULL, 0, input, cmdp->argv[0]->len, 76 cmdp->argv[1]->bp, cmdp->argv[1]->len, stype, 77 SEQ_FUNCMAP | SEQ_USERDEF)) 78 return (1); 79 return (sp->gp->scr_fmap == NULL ? 0 : 80 sp->gp->scr_fmap(sp, stype, input, cmdp->argv[0]->len, 81 cmdp->argv[1]->bp, cmdp->argv[1]->len)); 82 } 83 84 /* Some single keys may not be remapped in command mode. */ 85 nofunc: if (stype == SEQ_COMMAND && input[1] == '\0') 86 switch (KEY_VAL(sp, input[0])) { 87 case K_COLON: 88 case K_ESCAPE: 89 case K_NL: 90 msgq(sp, M_ERR, 91 "134|The %s character may not be remapped", 92 KEY_NAME(sp, input[0])); 93 return (1); 94 } 95 return (seq_set(sp, NULL, 0, input, cmdp->argv[0]->len, 96 cmdp->argv[1]->bp, cmdp->argv[1]->len, stype, SEQ_USERDEF)); 97 } 98 99 /* 100 * ex_unmap -- (:unmap[!] key) 101 * Unmap a key. 102 * 103 * PUBLIC: int ex_unmap(SCR *, EXCMD *); 104 */ 105 int 106 ex_unmap(SCR *sp, EXCMD *cmdp) 107 { 108 if (seq_delete(sp, cmdp->argv[0]->bp, cmdp->argv[0]->len, 109 FL_ISSET(cmdp->iflags, E_C_FORCE) ? SEQ_INPUT : SEQ_COMMAND)) { 110 msgq_str(sp, M_INFO, 111 cmdp->argv[0]->bp, "135|\"%s\" isn't currently mapped"); 112 return (1); 113 } 114 return (0); 115 } 116