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