119304Speter/*- 219304Speter * Copyright (c) 1992, 1993, 1994 319304Speter * The Regents of the University of California. All rights reserved. 419304Speter * Copyright (c) 1992, 1993, 1994, 1995, 1996 519304Speter * Keith Bostic. All rights reserved. 619304Speter * 719304Speter * See the LICENSE file for redistribution information. 819304Speter */ 919304Speter 1019304Speter#include "config.h" 1119304Speter 1219304Speter#ifndef lint 13254225Speterstatic const char sccsid[] = "$Id: ex_usage.c,v 10.16 2011/12/21 19:26:48 zy Exp $"; 1419304Speter#endif /* not lint */ 1519304Speter 1619304Speter#include <sys/types.h> 1719304Speter#include <sys/queue.h> 1819304Speter#include <sys/time.h> 1919304Speter 2019304Speter#include <bitstring.h> 2119304Speter#include <ctype.h> 2219304Speter#include <limits.h> 2319304Speter#include <stdio.h> 2419304Speter#include <stdlib.h> 2519304Speter#include <string.h> 2619304Speter 2719304Speter#include "../common/common.h" 2819304Speter#include "../vi/vi.h" 2919304Speter 3019304Speter/* 3119304Speter * ex_help -- :help 3219304Speter * Display help message. 3319304Speter * 34281373Sbapt * PUBLIC: int ex_help(SCR *, EXCMD *); 3519304Speter */ 3619304Speterint 37254225Speterex_help(SCR *sp, EXCMD *cmdp) 3819304Speter{ 3919304Speter (void)ex_puts(sp, 4019304Speter "To see the list of vi commands, enter \":viusage<CR>\"\n"); 4119304Speter (void)ex_puts(sp, 4219304Speter "To see the list of ex commands, enter \":exusage<CR>\"\n"); 4319304Speter (void)ex_puts(sp, 4419304Speter "For an ex command usage statement enter \":exusage [cmd]<CR>\"\n"); 4519304Speter (void)ex_puts(sp, 4619304Speter "For a vi key usage statement enter \":viusage [key]<CR>\"\n"); 4719304Speter (void)ex_puts(sp, "To exit, enter \":q!\"\n"); 4819304Speter return (0); 4919304Speter} 5019304Speter 5119304Speter/* 5219304Speter * ex_usage -- :exusage [cmd] 5319304Speter * Display ex usage strings. 5419304Speter * 55281373Sbapt * PUBLIC: int ex_usage(SCR *, EXCMD *); 5619304Speter */ 5719304Speterint 58254225Speterex_usage(SCR *sp, EXCMD *cmdp) 5919304Speter{ 6019304Speter ARGS *ap; 6119304Speter EXCMDLIST const *cp; 6219304Speter int newscreen; 63254225Speter CHAR_T *name, *p, nb[MAXCMDNAMELEN + 5]; 6419304Speter 6519304Speter switch (cmdp->argc) { 6619304Speter case 1: 6719304Speter ap = cmdp->argv[0]; 68254225Speter if (ISUPPER(ap->bp[0])) { 6919304Speter newscreen = 1; 70254225Speter ap->bp[0] = TOLOWER(ap->bp[0]); 7119304Speter } else 7219304Speter newscreen = 0; 7319304Speter for (cp = cmds; cp->name != NULL && 74254225Speter MEMCMP(ap->bp, cp->name, ap->len); ++cp); 7519304Speter if (cp->name == NULL || 76254225Speter (newscreen && !F_ISSET(cp, E_NEWSCREEN))) { 7719304Speter if (newscreen) 78254225Speter ap->bp[0] = TOUPPER(ap->bp[0]); 79254225Speter (void)ex_printf(sp, "The "WVS" command is unknown\n", 8019304Speter (int)ap->len, ap->bp); 8119304Speter } else { 8219304Speter (void)ex_printf(sp, 8319304Speter "Command: %s\n Usage: %s\n", cp->help, cp->usage); 8419304Speter /* 8519304Speter * !!! 8619304Speter * The "visual" command has two modes, one from ex, 8719304Speter * one from the vi colon line. Don't ask. 8819304Speter */ 8919304Speter if (cp != &cmds[C_VISUAL_EX] && 9019304Speter cp != &cmds[C_VISUAL_VI]) 9119304Speter break; 9219304Speter if (cp == &cmds[C_VISUAL_EX]) 9319304Speter cp = &cmds[C_VISUAL_VI]; 9419304Speter else 9519304Speter cp = &cmds[C_VISUAL_EX]; 9619304Speter (void)ex_printf(sp, 9719304Speter "Command: %s\n Usage: %s\n", cp->help, cp->usage); 9819304Speter } 9919304Speter break; 10019304Speter case 0: 10119304Speter for (cp = cmds; cp->name != NULL && !INTERRUPTED(sp); ++cp) { 10219304Speter /* 10319304Speter * The ^D command has an unprintable name. 10419304Speter * 10519304Speter * XXX 10619304Speter * We display both capital and lower-case versions of 10719304Speter * the appropriate commands -- no need to add in extra 10819304Speter * room, they're all short names. 10919304Speter */ 11019304Speter if (cp == &cmds[C_SCROLL]) 111254225Speter name = L("^D"); 11219304Speter else if (F_ISSET(cp, E_NEWSCREEN)) { 11319304Speter nb[0] = '['; 114254225Speter nb[1] = TOUPPER(cp->name[0]); 11519304Speter nb[2] = cp->name[0]; 11619304Speter nb[3] = ']'; 11719304Speter for (name = cp->name + 1, 11819304Speter p = nb + 4; (*p++ = *name++) != '\0';); 11919304Speter name = nb; 12019304Speter } else 12119304Speter name = cp->name; 12219304Speter (void)ex_printf(sp, 123254225Speter WVS": %s\n", MAXCMDNAMELEN, name, cp->help); 12419304Speter } 12519304Speter break; 12619304Speter default: 12719304Speter abort(); 12819304Speter } 12919304Speter return (0); 13019304Speter} 13119304Speter 13219304Speter/* 13319304Speter * ex_viusage -- :viusage [key] 13419304Speter * Display vi usage strings. 13519304Speter * 136281373Sbapt * PUBLIC: int ex_viusage(SCR *, EXCMD *); 13719304Speter */ 13819304Speterint 139254225Speterex_viusage(SCR *sp, EXCMD *cmdp) 14019304Speter{ 14119304Speter GS *gp; 14219304Speter VIKEYS const *kp; 14319304Speter int key; 14419304Speter 14519304Speter gp = sp->gp; 14619304Speter switch (cmdp->argc) { 14719304Speter case 1: 14819304Speter if (cmdp->argv[0]->len != 1) { 14919304Speter ex_emsg(sp, cmdp->cmd->usage, EXM_USAGE); 15019304Speter return (1); 15119304Speter } 15219304Speter key = cmdp->argv[0]->bp[0]; 15319304Speter if (key > MAXVIKEY) 15419304Speter goto nokey; 15519304Speter 15619304Speter /* Special case: '[' and ']' commands. */ 15719304Speter if ((key == '[' || key == ']') && cmdp->argv[0]->bp[1] != key) 15819304Speter goto nokey; 15919304Speter 16019304Speter /* Special case: ~ command. */ 16119304Speter if (key == '~' && O_ISSET(sp, O_TILDEOP)) 16219304Speter kp = &tmotion; 16319304Speter else 16419304Speter kp = &vikeys[key]; 16519304Speter 16619304Speter if (kp->usage == NULL) 16719304Speternokey: (void)ex_printf(sp, 16819304Speter "The %s key has no current meaning\n", 16919304Speter KEY_NAME(sp, key)); 17019304Speter else 17119304Speter (void)ex_printf(sp, 17219304Speter " Key:%s%s\nUsage: %s\n", 17319304Speter isblank(*kp->help) ? "" : " ", kp->help, kp->usage); 17419304Speter break; 17519304Speter case 0: 17619304Speter for (key = 0; key <= MAXVIKEY && !INTERRUPTED(sp); ++key) { 17719304Speter /* Special case: ~ command. */ 17819304Speter if (key == '~' && O_ISSET(sp, O_TILDEOP)) 17919304Speter kp = &tmotion; 18019304Speter else 18119304Speter kp = &vikeys[key]; 18219304Speter if (kp->help != NULL) 18319304Speter (void)ex_printf(sp, "%s\n", kp->help); 18419304Speter } 18519304Speter break; 18619304Speter default: 18719304Speter abort(); 18819304Speter } 18919304Speter return (0); 19019304Speter} 191