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_abbrev.c,v 10.10 2001/12/16 18:18:54 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 #include "../vi/vi.h" 29 30 /* 31 * ex_abbr -- :abbreviate [key replacement] 32 * Create an abbreviation or display abbreviations. 33 * 34 * PUBLIC: int ex_abbr __P((SCR *, EXCMD *)); 35 */ 36 int 37 ex_abbr(SCR *sp, EXCMD *cmdp) 38 { 39 CHAR_T *p; 40 size_t len; 41 42 switch (cmdp->argc) { 43 case 0: 44 if (seq_dump(sp, SEQ_ABBREV, 0) == 0) 45 msgq(sp, M_INFO, "105|No abbreviations to display"); 46 return (0); 47 case 2: 48 break; 49 default: 50 abort(); 51 } 52 53 /* 54 * Check for illegal characters. 55 * 56 * !!! 57 * Another fun one, historically. See vi/v_ntext.c:txt_abbrev() for 58 * details. The bottom line is that all abbreviations have to end 59 * with a "word" character, because it's the transition from word to 60 * non-word characters that triggers the test for an abbreviation. In 61 * addition, because of the way the test is done, there can't be any 62 * transitions from word to non-word character (or vice-versa) other 63 * than between the next-to-last and last characters of the string, 64 * and there can't be any <blank> characters. Warn the user. 65 */ 66 if (!inword(cmdp->argv[0]->bp[cmdp->argv[0]->len - 1])) { 67 msgq(sp, M_ERR, 68 "106|Abbreviations must end with a \"word\" character"); 69 return (1); 70 } 71 for (p = cmdp->argv[0]->bp; *p != '\0'; ++p) 72 if (ISBLANK(p[0])) { 73 msgq(sp, M_ERR, 74 "107|Abbreviations may not contain tabs or spaces"); 75 return (1); 76 } 77 if (cmdp->argv[0]->len > 2) 78 for (p = cmdp->argv[0]->bp, 79 len = cmdp->argv[0]->len - 2; len; --len, ++p) 80 if (inword(p[0]) != inword(p[1])) { 81 msgq(sp, M_ERR, 82 "108|Abbreviations may not mix word/non-word characters, except at the end"); 83 return (1); 84 } 85 86 if (seq_set(sp, NULL, 0, cmdp->argv[0]->bp, cmdp->argv[0]->len, 87 cmdp->argv[1]->bp, cmdp->argv[1]->len, SEQ_ABBREV, SEQ_USERDEF)) 88 return (1); 89 90 F_SET(sp->gp, G_ABBREV); 91 return (0); 92 } 93 94 /* 95 * ex_unabbr -- :unabbreviate key 96 * Delete an abbreviation. 97 * 98 * PUBLIC: int ex_unabbr __P((SCR *, EXCMD *)); 99 */ 100 int 101 ex_unabbr(SCR *sp, EXCMD *cmdp) 102 { 103 ARGS *ap; 104 105 ap = cmdp->argv[0]; 106 if (!F_ISSET(sp->gp, G_ABBREV) || 107 seq_delete(sp, ap->bp, ap->len, SEQ_ABBREV)) { 108 msgq_wstr(sp, M_ERR, ap->bp, 109 "109|\"%s\" is not an abbreviation"); 110 return (1); 111 } 112 return (0); 113 } 114