diff options
author | peter <peter@FreeBSD.org> | 1996-11-01 06:45:43 +0000 |
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committer | peter <peter@FreeBSD.org> | 1996-11-01 06:45:43 +0000 |
commit | 59cc89c2c2e686da3bdab2d5cfac4f33462d29fe (patch) | |
tree | 88f923c9c0be2e2a225a9b21716fd582de668b42 /contrib/nvi/common/options.c | |
download | FreeBSD-src-59cc89c2c2e686da3bdab2d5cfac4f33462d29fe.zip FreeBSD-src-59cc89c2c2e686da3bdab2d5cfac4f33462d29fe.tar.gz |
Import of nvi-1.79, minus a few bits that we dont need (eg: postscript
files, curses, db, regex etc that we already have). The other glue will
follow shortly.
Obtained from: Keith Bostic <bostic@bostic.com>
Diffstat (limited to 'contrib/nvi/common/options.c')
-rw-r--r-- | contrib/nvi/common/options.c | 1141 |
1 files changed, 1141 insertions, 0 deletions
diff --git a/contrib/nvi/common/options.c b/contrib/nvi/common/options.c new file mode 100644 index 0000000..973778c --- /dev/null +++ b/contrib/nvi/common/options.c @@ -0,0 +1,1141 @@ +/*- + * Copyright (c) 1991, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1991, 1993, 1994, 1995, 1996 + * Keith Bostic. All rights reserved. + * + * See the LICENSE file for redistribution information. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)options.c 10.51 (Berkeley) 10/14/96"; +#endif /* not lint */ + +#include <sys/types.h> +#include <sys/queue.h> +#include <sys/stat.h> +#include <sys/time.h> + +#include <bitstring.h> +#include <ctype.h> +#include <errno.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "common.h" +#include "../vi/vi.h" +#include "pathnames.h" + +static int opts_abbcmp __P((const void *, const void *)); +static int opts_cmp __P((const void *, const void *)); +static int opts_print __P((SCR *, OPTLIST const *)); + +/* + * O'Reilly noted options and abbreviations are from "Learning the VI Editor", + * Fifth Edition, May 1992. There's no way of knowing what systems they are + * actually from. + * + * HPUX noted options and abbreviations are from "The Ultimate Guide to the + * VI and EX Text Editors", 1990. + */ +OPTLIST const optlist[] = { +/* O_ALTWERASE 4.4BSD */ + {"altwerase", f_altwerase, OPT_0BOOL, 0}, +/* O_AUTOINDENT 4BSD */ + {"autoindent", NULL, OPT_0BOOL, 0}, +/* O_AUTOPRINT 4BSD */ + {"autoprint", NULL, OPT_1BOOL, 0}, +/* O_AUTOWRITE 4BSD */ + {"autowrite", NULL, OPT_0BOOL, 0}, +/* O_BACKUP 4.4BSD */ + {"backup", NULL, OPT_STR, 0}, +/* O_BEAUTIFY 4BSD */ + {"beautify", NULL, OPT_0BOOL, 0}, +/* O_CDPATH 4.4BSD */ + {"cdpath", NULL, OPT_STR, 0}, +/* O_CEDIT 4.4BSD */ + {"cedit", NULL, OPT_STR, 0}, +/* O_COLUMNS 4.4BSD */ + {"columns", f_columns, OPT_NUM, OPT_NOSAVE}, +/* O_COMMENT 4.4BSD */ + {"comment", NULL, OPT_0BOOL, 0}, +/* O_DIRECTORY 4BSD */ + {"directory", NULL, OPT_STR, 0}, +/* O_EDCOMPATIBLE 4BSD */ + {"edcompatible",NULL, OPT_0BOOL, 0}, +/* O_ESCAPETIME 4.4BSD */ + {"escapetime", NULL, OPT_NUM, 0}, +/* O_ERRORBELLS 4BSD */ + {"errorbells", NULL, OPT_0BOOL, 0}, +/* O_EXRC System V (undocumented) */ + {"exrc", NULL, OPT_0BOOL, 0}, +/* O_EXTENDED 4.4BSD */ + {"extended", f_recompile, OPT_0BOOL, 0}, +/* O_FILEC 4.4BSD */ + {"filec", NULL, OPT_STR, 0}, +/* O_FLASH HPUX */ + {"flash", NULL, OPT_1BOOL, 0}, +/* O_HARDTABS 4BSD */ + {"hardtabs", NULL, OPT_NUM, 0}, +/* O_ICLOWER 4.4BSD */ + {"iclower", f_recompile, OPT_0BOOL, 0}, +/* O_IGNORECASE 4BSD */ + {"ignorecase", f_recompile, OPT_0BOOL, 0}, +/* O_KEYTIME 4.4BSD */ + {"keytime", NULL, OPT_NUM, 0}, +/* O_LEFTRIGHT 4.4BSD */ + {"leftright", f_reformat, OPT_0BOOL, 0}, +/* O_LINES 4.4BSD */ + {"lines", f_lines, OPT_NUM, OPT_NOSAVE}, +/* O_LISP 4BSD + * XXX + * When the lisp option is implemented, delete the OPT_NOSAVE flag, + * so that :mkexrc dumps it. + */ + {"lisp", f_lisp, OPT_0BOOL, OPT_NOSAVE}, +/* O_LIST 4BSD */ + {"list", f_reformat, OPT_0BOOL, 0}, +/* O_LOCKFILES 4.4BSD + * XXX + * Locking isn't reliable enough over NFS to require it, in addition, + * it's a serious startup performance problem over some remote links. + */ + {"lock", NULL, OPT_1BOOL, 0}, +/* O_MAGIC 4BSD */ + {"magic", NULL, OPT_1BOOL, 0}, +/* O_MATCHTIME 4.4BSD */ + {"matchtime", NULL, OPT_NUM, 0}, +/* O_MESG 4BSD */ + {"mesg", NULL, OPT_1BOOL, 0}, +/* O_MODELINE 4BSD + * !!! + * This has been documented in historical systems as both "modeline" + * and as "modelines". Regardless of the name, this option represents + * a security problem of mammoth proportions, not to mention a stunning + * example of what your intro CS professor referred to as the perils of + * mixing code and data. Don't add it, or I will kill you. + */ + {"modeline", NULL, OPT_0BOOL, OPT_NOSET}, +/* O_MSGCAT 4.4BSD */ + {"msgcat", f_msgcat, OPT_STR, 0}, +/* O_NOPRINT 4.4BSD */ + {"noprint", f_print, OPT_STR, 0}, +/* O_NUMBER 4BSD */ + {"number", f_reformat, OPT_0BOOL, 0}, +/* O_OCTAL 4.4BSD */ + {"octal", f_print, OPT_0BOOL, 0}, +/* O_OPEN 4BSD */ + {"open", NULL, OPT_1BOOL, 0}, +/* O_OPTIMIZE 4BSD */ + {"optimize", NULL, OPT_1BOOL, 0}, +/* O_PARAGRAPHS 4BSD */ + {"paragraphs", f_paragraph, OPT_STR, 0}, +/* O_PATH 4.4BSD */ + {"path", NULL, OPT_STR, 0}, +/* O_PRINT 4.4BSD */ + {"print", f_print, OPT_STR, 0}, +/* O_PROMPT 4BSD */ + {"prompt", NULL, OPT_1BOOL, 0}, +/* O_READONLY 4BSD (undocumented) */ + {"readonly", f_readonly, OPT_0BOOL, OPT_ALWAYS}, +/* O_RECDIR 4.4BSD */ + {"recdir", NULL, OPT_STR, 0}, +/* O_REDRAW 4BSD */ + {"redraw", NULL, OPT_0BOOL, 0}, +/* O_REMAP 4BSD */ + {"remap", NULL, OPT_1BOOL, 0}, +/* O_REPORT 4BSD */ + {"report", NULL, OPT_NUM, 0}, +/* O_RULER 4.4BSD */ + {"ruler", NULL, OPT_0BOOL, 0}, +/* O_SCROLL 4BSD */ + {"scroll", NULL, OPT_NUM, 0}, +/* O_SEARCHINCR 4.4BSD */ + {"searchincr", NULL, OPT_0BOOL, 0}, +/* O_SECTIONS 4BSD */ + {"sections", f_section, OPT_STR, 0}, +/* O_SECURE 4.4BSD */ + {"secure", NULL, OPT_0BOOL, OPT_NOUNSET}, +/* O_SHELL 4BSD */ + {"shell", NULL, OPT_STR, 0}, +/* O_SHELLMETA 4.4BSD */ + {"shellmeta", NULL, OPT_STR, 0}, +/* O_SHIFTWIDTH 4BSD */ + {"shiftwidth", NULL, OPT_NUM, OPT_NOZERO}, +/* O_SHOWMATCH 4BSD */ + {"showmatch", NULL, OPT_0BOOL, 0}, +/* O_SHOWMODE 4.4BSD */ + {"showmode", NULL, OPT_0BOOL, 0}, +/* O_SIDESCROLL 4.4BSD */ + {"sidescroll", NULL, OPT_NUM, OPT_NOZERO}, +/* O_SLOWOPEN 4BSD */ + {"slowopen", NULL, OPT_0BOOL, 0}, +/* O_SOURCEANY 4BSD (undocumented) + * !!! + * Historic vi, on startup, source'd $HOME/.exrc and ./.exrc, if they + * were owned by the user. The sourceany option was an undocumented + * feature of historic vi which permitted the startup source'ing of + * .exrc files the user didn't own. This is an obvious security problem, + * and we ignore the option. + */ + {"sourceany", NULL, OPT_0BOOL, OPT_NOSET}, +/* O_TABSTOP 4BSD */ + {"tabstop", f_reformat, OPT_NUM, OPT_NOZERO}, +/* O_TAGLENGTH 4BSD */ + {"taglength", NULL, OPT_NUM, 0}, +/* O_TAGS 4BSD */ + {"tags", NULL, OPT_STR, 0}, +/* O_TERM 4BSD + * !!! + * By default, the historic vi always displayed information about two + * options, redraw and term. Term seems sufficient. + */ + {"term", NULL, OPT_STR, OPT_ADISP|OPT_NOSAVE}, +/* O_TERSE 4BSD */ + {"terse", NULL, OPT_0BOOL, 0}, +/* O_TILDEOP 4.4BSD */ + {"tildeop", NULL, OPT_0BOOL, 0}, +/* O_TIMEOUT 4BSD (undocumented) */ + {"timeout", NULL, OPT_1BOOL, 0}, +/* O_TTYWERASE 4.4BSD */ + {"ttywerase", f_ttywerase, OPT_0BOOL, 0}, +/* O_VERBOSE 4.4BSD */ + {"verbose", NULL, OPT_0BOOL, 0}, +/* O_W1200 4BSD */ + {"w1200", f_w1200, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, +/* O_W300 4BSD */ + {"w300", f_w300, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, +/* O_W9600 4BSD */ + {"w9600", f_w9600, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, +/* O_WARN 4BSD */ + {"warn", NULL, OPT_1BOOL, 0}, +/* O_WINDOW 4BSD */ + {"window", f_window, OPT_NUM, 0}, +/* O_WINDOWNAME 4BSD */ + {"windowname", NULL, OPT_0BOOL, 0}, +/* O_WRAPLEN 4.4BSD */ + {"wraplen", NULL, OPT_NUM, 0}, +/* O_WRAPMARGIN 4BSD */ + {"wrapmargin", NULL, OPT_NUM, 0}, +/* O_WRAPSCAN 4BSD */ + {"wrapscan", NULL, OPT_1BOOL, 0}, +/* O_WRITEANY 4BSD */ + {"writeany", NULL, OPT_0BOOL, 0}, + {NULL}, +}; + +typedef struct abbrev { + char *name; + int offset; +} OABBREV; + +static OABBREV const abbrev[] = { + {"ai", O_AUTOINDENT}, /* 4BSD */ + {"ap", O_AUTOPRINT}, /* 4BSD */ + {"aw", O_AUTOWRITE}, /* 4BSD */ + {"bf", O_BEAUTIFY}, /* 4BSD */ + {"co", O_COLUMNS}, /* 4.4BSD */ + {"dir", O_DIRECTORY}, /* 4BSD */ + {"eb", O_ERRORBELLS}, /* 4BSD */ + {"ed", O_EDCOMPATIBLE}, /* 4BSD */ + {"ex", O_EXRC}, /* System V (undocumented) */ + {"ht", O_HARDTABS}, /* 4BSD */ + {"ic", O_IGNORECASE}, /* 4BSD */ + {"li", O_LINES}, /* 4.4BSD */ + {"modelines", O_MODELINE}, /* HPUX */ + {"nu", O_NUMBER}, /* 4BSD */ + {"opt", O_OPTIMIZE}, /* 4BSD */ + {"para", O_PARAGRAPHS}, /* 4BSD */ + {"re", O_REDRAW}, /* O'Reilly */ + {"ro", O_READONLY}, /* 4BSD (undocumented) */ + {"scr", O_SCROLL}, /* 4BSD (undocumented) */ + {"sect", O_SECTIONS}, /* O'Reilly */ + {"sh", O_SHELL}, /* 4BSD */ + {"slow", O_SLOWOPEN}, /* 4BSD */ + {"sm", O_SHOWMATCH}, /* 4BSD */ + {"smd", O_SHOWMODE}, /* 4BSD */ + {"sw", O_SHIFTWIDTH}, /* 4BSD */ + {"tag", O_TAGS}, /* 4BSD (undocumented) */ + {"tl", O_TAGLENGTH}, /* 4BSD */ + {"to", O_TIMEOUT}, /* 4BSD (undocumented) */ + {"ts", O_TABSTOP}, /* 4BSD */ + {"tty", O_TERM}, /* 4BSD (undocumented) */ + {"ttytype", O_TERM}, /* 4BSD (undocumented) */ + {"w", O_WINDOW}, /* O'Reilly */ + {"wa", O_WRITEANY}, /* 4BSD */ + {"wi", O_WINDOW}, /* 4BSD (undocumented) */ + {"wl", O_WRAPLEN}, /* 4.4BSD */ + {"wm", O_WRAPMARGIN}, /* 4BSD */ + {"ws", O_WRAPSCAN}, /* 4BSD */ + {NULL}, +}; + +/* + * opts_init -- + * Initialize some of the options. + * + * PUBLIC: int opts_init __P((SCR *, int *)); + */ +int +opts_init(sp, oargs) + SCR *sp; + int *oargs; +{ + ARGS *argv[2], a, b; + OPTLIST const *op; + u_long v; + int cnt, optindx; + char *s, b1[1024]; + + a.bp = b1; + b.bp = NULL; + a.len = b.len = 0; + argv[0] = &a; + argv[1] = &b; + + /* Set numeric and string default values. */ +#define OI(indx, str) { \ + if (str != b1) /* GCC puts strings in text-space. */ \ + (void)strcpy(b1, str); \ + a.len = strlen(b1); \ + if (opts_set(sp, argv, NULL)) { \ + optindx = indx; \ + goto err; \ + } \ +} + /* + * Indirect global options to global space. Specifically, set up + * terminal, lines, columns first, they're used by other options. + * Note, don't set the flags until we've set up the indirection. + */ + if (o_set(sp, O_TERM, 0, NULL, GO_TERM)) + goto err; + F_SET(&sp->opts[O_TERM], OPT_GLOBAL); + if (o_set(sp, O_LINES, 0, NULL, GO_LINES)) + goto err; + F_SET(&sp->opts[O_LINES], OPT_GLOBAL); + if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS)) + goto err; + F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL); + if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE)) + goto err; + F_SET(&sp->opts[O_SECURE], OPT_GLOBAL); + + /* Initialize string values. */ + (void)snprintf(b1, sizeof(b1), + "cdpath=%s", (s = getenv("CDPATH")) == NULL ? ":" : s); + OI(O_CDPATH, b1); + + /* + * !!! + * Vi historically stored temporary files in /var/tmp. We store them + * in /tmp by default, hoping it's a memory based file system. There + * are two ways to change this -- the user can set either the directory + * option or the TMPDIR environmental variable. + */ + (void)snprintf(b1, sizeof(b1), + "directory=%s", (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s); + OI(O_DIRECTORY, b1); + OI(O_ESCAPETIME, "escapetime=1"); + OI(O_KEYTIME, "keytime=6"); + OI(O_MATCHTIME, "matchtime=7"); + (void)snprintf(b1, sizeof(b1), "msgcat=%s", _PATH_MSGCAT); + OI(O_MSGCAT, b1); + OI(O_REPORT, "report=5"); + OI(O_PARAGRAPHS, "paragraphs=IPLPPPQPP LIpplpipbp"); + (void)snprintf(b1, sizeof(b1), "path=%s", ""); + OI(O_PATH, b1); + (void)snprintf(b1, sizeof(b1), "recdir=%s", _PATH_PRESERVE); + OI(O_RECDIR, b1); + OI(O_SECTIONS, "sections=NHSHH HUnhsh"); + (void)snprintf(b1, sizeof(b1), + "shell=%s", (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s); + OI(O_SHELL, b1); + OI(O_SHELLMETA, "shellmeta=~{[*?$`'\"\\"); + OI(O_SHIFTWIDTH, "shiftwidth=8"); + OI(O_SIDESCROLL, "sidescroll=16"); + OI(O_TABSTOP, "tabstop=8"); + (void)snprintf(b1, sizeof(b1), "tags=%s", _PATH_TAGS); + OI(O_TAGS, b1); + + /* + * XXX + * Initialize O_SCROLL here, after term; initializing term should + * have created a LINES/COLUMNS value. + */ + if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0) + v = 1; + (void)snprintf(b1, sizeof(b1), "scroll=%ld", v); + OI(O_SCROLL, b1); + + /* + * The default window option values are: + * 8 if baud rate <= 600 + * 16 if baud rate <= 1200 + * LINES - 1 if baud rate > 1200 + * + * Note, the windows option code will correct any too-large value + * or when the O_LINES value is 1. + */ + if (sp->gp->scr_baud(sp, &v)) + return (1); + if (v <= 600) + v = 8; + else if (v <= 1200) + v = 16; + else + v = O_VAL(sp, O_LINES) - 1; + (void)snprintf(b1, sizeof(b1), "window=%lu", v); + OI(O_WINDOW, b1); + + /* + * Set boolean default values, and copy all settings into the default + * information. OS_NOFREE is set, we're copying, not replacing. + */ + for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt) + switch (op->type) { + case OPT_0BOOL: + break; + case OPT_1BOOL: + O_SET(sp, cnt); + O_D_SET(sp, cnt); + break; + case OPT_NUM: + o_set(sp, cnt, OS_DEF, NULL, O_VAL(sp, cnt)); + break; + case OPT_STR: + if (O_STR(sp, cnt) != NULL && o_set(sp, cnt, + OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) + goto err; + break; + default: + abort(); + } + + /* + * !!! + * Some options can be initialized by the command name or the + * command-line arguments. They don't set the default values, + * it's historic practice. + */ + for (; *oargs != -1; ++oargs) + OI(*oargs, optlist[*oargs].name); + return (0); +#undef OI + +err: msgq(sp, M_ERR, + "031|Unable to set default %s option", optlist[optindx].name); + return (1); +} + +/* + * opts_set -- + * Change the values of one or more options. + * + * PUBLIC: int opts_set __P((SCR *, ARGS *[], char *)); + */ +int +opts_set(sp, argv, usage) + SCR *sp; + ARGS *argv[]; + char *usage; +{ + enum optdisp disp; + enum nresult nret; + OPTLIST const *op; + OPTION *spo; + u_long value, turnoff; + int ch, equals, nf, nf2, offset, qmark, rval; + char *endp, *name, *p, *sep, *t; + + disp = NO_DISPLAY; + for (rval = 0; argv[0]->len != 0; ++argv) { + /* + * The historic vi dumped the options for each occurrence of + * "all" in the set list. Puhleeze. + */ + if (!strcmp(argv[0]->bp, "all")) { + disp = ALL_DISPLAY; + continue; + } + + /* Find equals sign or question mark. */ + for (sep = NULL, equals = qmark = 0, + p = name = argv[0]->bp; (ch = *p) != '\0'; ++p) + if (ch == '=' || ch == '?') { + if (p == name) { + if (usage != NULL) + msgq(sp, M_ERR, + "032|Usage: %s", usage); + return (1); + } + sep = p; + if (ch == '=') + equals = 1; + else + qmark = 1; + break; + } + + turnoff = 0; + op = NULL; + if (sep != NULL) + *sep++ = '\0'; + + /* Search for the name, then name without any leading "no". */ + if ((op = opts_search(name)) == NULL && + name[0] == 'n' && name[1] == 'o') { + turnoff = 1; + name += 2; + op = opts_search(name); + } + if (op == NULL) { + opts_nomatch(sp, name); + rval = 1; + continue; + } + + /* Find current option values. */ + offset = op - optlist; + spo = sp->opts + offset; + + /* + * !!! + * Historically, the question mark could be a separate + * argument. + */ + if (!equals && !qmark && + argv[1]->len == 1 && argv[1]->bp[0] == '?') { + ++argv; + qmark = 1; + } + + /* Set name, value. */ + switch (op->type) { + case OPT_0BOOL: + case OPT_1BOOL: + /* Some options may not be reset. */ + if (F_ISSET(op, OPT_NOUNSET) && turnoff) { + msgq_str(sp, M_ERR, name, + "291|set: the %s option may not be turned off"); + rval = 1; + break; + } + + /* Some options may not be set. */ + if (F_ISSET(op, OPT_NOSET) && !turnoff) { + msgq_str(sp, M_ERR, name, + "313|set: the %s option may never be turned on"); + rval = 1; + break; + } + + if (equals) { + msgq_str(sp, M_ERR, name, + "034|set: [no]%s option doesn't take a value"); + rval = 1; + break; + } + if (qmark) { + if (!disp) + disp = SELECT_DISPLAY; + F_SET(spo, OPT_SELECTED); + break; + } + + /* + * Do nothing if the value is unchanged, the underlying + * functions can be expensive. + */ + if (!F_ISSET(op, OPT_ALWAYS)) + if (turnoff) { + if (!O_ISSET(sp, offset)) + break; + } else { + if (O_ISSET(sp, offset)) + break; + } + + /* Report to subsystems. */ + if (op->func != NULL && + op->func(sp, spo, NULL, &turnoff) || + ex_optchange(sp, offset, NULL, &turnoff) || + v_optchange(sp, offset, NULL, &turnoff) || + sp->gp->scr_optchange(sp, offset, NULL, &turnoff)) { + rval = 1; + break; + } + + /* Set the value. */ + if (turnoff) + O_CLR(sp, offset); + else + O_SET(sp, offset); + break; + case OPT_NUM: + if (turnoff) { + msgq_str(sp, M_ERR, name, + "035|set: %s option isn't a boolean"); + rval = 1; + break; + } + if (qmark || !equals) { + if (!disp) + disp = SELECT_DISPLAY; + F_SET(spo, OPT_SELECTED); + break; + } + + if (!isdigit(sep[0])) + goto badnum; + if ((nret = + nget_uslong(&value, sep, &endp, 10)) != NUM_OK) { + p = msg_print(sp, name, &nf); + t = msg_print(sp, sep, &nf2); + switch (nret) { + case NUM_ERR: + msgq(sp, M_SYSERR, + "036|set: %s option: %s", p, t); + break; + case NUM_OVER: + msgq(sp, M_ERR, + "037|set: %s option: %s: value overflow", p, t); + break; + case NUM_OK: + case NUM_UNDER: + abort(); + } + if (nf) + FREE_SPACE(sp, p, 0); + if (nf2) + FREE_SPACE(sp, t, 0); + rval = 1; + break; + } + if (*endp && !isblank(*endp)) { +badnum: p = msg_print(sp, name, &nf); + t = msg_print(sp, sep, &nf2); + msgq(sp, M_ERR, + "038|set: %s option: %s is an illegal number", p, t); + if (nf) + FREE_SPACE(sp, p, 0); + if (nf2) + FREE_SPACE(sp, t, 0); + rval = 1; + break; + } + + /* Some options may never be set to zero. */ + if (F_ISSET(op, OPT_NOZERO) && value == 0) { + msgq_str(sp, M_ERR, name, + "314|set: the %s option may never be set to 0"); + rval = 1; + break; + } + + /* + * Do nothing if the value is unchanged, the underlying + * functions can be expensive. + */ + if (!F_ISSET(op, OPT_ALWAYS) && + O_VAL(sp, offset) == value) + break; + + /* Report to subsystems. */ + if (op->func != NULL && + op->func(sp, spo, sep, &value) || + ex_optchange(sp, offset, sep, &value) || + v_optchange(sp, offset, sep, &value) || + sp->gp->scr_optchange(sp, offset, sep, &value)) { + rval = 1; + break; + } + + /* Set the value. */ + if (o_set(sp, offset, 0, NULL, value)) + rval = 1; + break; + case OPT_STR: + if (turnoff) { + msgq_str(sp, M_ERR, name, + "039|set: %s option isn't a boolean"); + rval = 1; + break; + } + if (qmark || !equals) { + if (!disp) + disp = SELECT_DISPLAY; + F_SET(spo, OPT_SELECTED); + break; + } + + /* + * Do nothing if the value is unchanged, the underlying + * functions can be expensive. + */ + if (!F_ISSET(op, OPT_ALWAYS) && + O_STR(sp, offset) != NULL && + !strcmp(O_STR(sp, offset), sep)) + break; + + /* Report to subsystems. */ + if (op->func != NULL && + op->func(sp, spo, sep, NULL) || + ex_optchange(sp, offset, sep, NULL) || + v_optchange(sp, offset, sep, NULL) || + sp->gp->scr_optchange(sp, offset, sep, NULL)) { + rval = 1; + break; + } + + /* Set the value. */ + if (o_set(sp, offset, OS_STRDUP, sep, 0)) + rval = 1; + break; + default: + abort(); + } + } + if (disp != NO_DISPLAY) + opts_dump(sp, disp); + return (rval); +} + +/* + * o_set -- + * Set an option's value. + * + * PUBLIC: int o_set __P((SCR *, int, u_int, char *, u_long)); + */ +int +o_set(sp, opt, flags, str, val) + SCR *sp; + int opt; + u_int flags; + char *str; + u_long val; +{ + OPTION *op; + + /* Set a pointer to the options area. */ + op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ? + &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt]; + + /* Copy the string, if requested. */ + if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) { + msgq(sp, M_SYSERR, NULL); + return (1); + } + + /* Free the previous string, if requested, and set the value. */ + if LF_ISSET(OS_DEF) + if (LF_ISSET(OS_STR | OS_STRDUP)) { + if (!LF_ISSET(OS_NOFREE) && op->o_def.str != NULL) + free(op->o_def.str); + op->o_def.str = str; + } else + op->o_def.val = val; + else + if (LF_ISSET(OS_STR | OS_STRDUP)) { + if (!LF_ISSET(OS_NOFREE) && op->o_cur.str != NULL) + free(op->o_cur.str); + op->o_cur.str = str; + } else + op->o_cur.val = val; + return (0); +} + +/* + * opts_empty -- + * Return 1 if the string option is invalid, 0 if it's OK. + * + * PUBLIC: int opts_empty __P((SCR *, int, int)); + */ +int +opts_empty(sp, off, silent) + SCR *sp; + int off, silent; +{ + char *p; + + if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') { + if (!silent) + msgq_str(sp, M_ERR, optlist[off].name, + "305|No %s edit option specified"); + return (1); + } + return (0); +} + +/* + * opts_dump -- + * List the current values of selected options. + * + * PUBLIC: void opts_dump __P((SCR *, enum optdisp)); + */ +void +opts_dump(sp, type) + SCR *sp; + enum optdisp type; +{ + OPTLIST const *op; + int base, b_num, cnt, col, colwidth, curlen, s_num; + int numcols, numrows, row; + int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT]; + char nbuf[20]; + + /* + * Options are output in two groups -- those that fit in a column and + * those that don't. Output is done on 6 character "tab" boundaries + * for no particular reason. (Since we don't output tab characters, + * we can ignore the terminal's tab settings.) Ignore the user's tab + * setting because we have no idea how reasonable it is. + * + * Find a column width we can live with, testing from 10 columns to 1. + */ + for (numcols = 10; numcols > 1; --numcols) { + colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1); + if (colwidth >= 10) { + colwidth = + (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1); + numcols = sp->cols / colwidth; + break; + } + colwidth = 0; + } + + /* + * Get the set of options to list, entering them into + * the column list or the overflow list. + */ + for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) { + cnt = op - optlist; + + /* If OPT_NDISP set, it's never displayed. */ + if (F_ISSET(op, OPT_NDISP)) + continue; + + switch (type) { + case ALL_DISPLAY: /* Display all. */ + break; + case CHANGED_DISPLAY: /* Display changed. */ + /* If OPT_ADISP set, it's always "changed". */ + if (F_ISSET(op, OPT_ADISP)) + break; + switch (op->type) { + case OPT_0BOOL: + case OPT_1BOOL: + case OPT_NUM: + if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt)) + continue; + break; + case OPT_STR: + if (O_STR(sp, cnt) == O_D_STR(sp, cnt) || + O_D_STR(sp, cnt) != NULL && + !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt))) + continue; + break; + } + break; + case SELECT_DISPLAY: /* Display selected. */ + if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED)) + continue; + break; + default: + case NO_DISPLAY: + abort(); + } + F_CLR(&sp->opts[cnt], OPT_SELECTED); + + curlen = strlen(op->name); + switch (op->type) { + case OPT_0BOOL: + case OPT_1BOOL: + if (!O_ISSET(sp, cnt)) + curlen += 2; + break; + case OPT_NUM: + (void)snprintf(nbuf, + sizeof(nbuf), "%ld", O_VAL(sp, cnt)); + curlen += strlen(nbuf); + break; + case OPT_STR: + if (O_STR(sp, cnt) != NULL) + curlen += strlen(O_STR(sp, cnt)); + curlen += 3; + break; + } + /* Offset by 2 so there's a gap. */ + if (curlen <= colwidth - 2) + s_op[s_num++] = cnt; + else + b_op[b_num++] = cnt; + } + + if (s_num > 0) { + /* Figure out the number of rows. */ + if (s_num > numcols) { + numrows = s_num / numcols; + if (s_num % numcols) + ++numrows; + } else + numrows = 1; + + /* Display the options in sorted order. */ + for (row = 0; row < numrows;) { + for (base = row, col = 0; col < numcols; ++col) { + cnt = opts_print(sp, &optlist[s_op[base]]); + if ((base += numrows) >= s_num) + break; + (void)ex_printf(sp, "%*s", + (int)(colwidth - cnt), ""); + } + if (++row < numrows || b_num) + (void)ex_puts(sp, "\n"); + } + } + + for (row = 0; row < b_num;) { + (void)opts_print(sp, &optlist[b_op[row]]); + if (++row < b_num) + (void)ex_puts(sp, "\n"); + } + (void)ex_puts(sp, "\n"); +} + +/* + * opts_print -- + * Print out an option. + */ +static int +opts_print(sp, op) + SCR *sp; + OPTLIST const *op; +{ + int curlen, offset; + + curlen = 0; + offset = op - optlist; + switch (op->type) { + case OPT_0BOOL: + case OPT_1BOOL: + curlen += ex_printf(sp, + "%s%s", O_ISSET(sp, offset) ? "" : "no", op->name); + break; + case OPT_NUM: + curlen += ex_printf(sp, "%s=%ld", op->name, O_VAL(sp, offset)); + break; + case OPT_STR: + curlen += ex_printf(sp, "%s=\"%s\"", op->name, + O_STR(sp, offset) == NULL ? "" : O_STR(sp, offset)); + break; + } + return (curlen); +} + +/* + * opts_save -- + * Write the current configuration to a file. + * + * PUBLIC: int opts_save __P((SCR *, FILE *)); + */ +int +opts_save(sp, fp) + SCR *sp; + FILE *fp; +{ + OPTLIST const *op; + int ch, cnt; + char *p; + + for (op = optlist; op->name != NULL; ++op) { + if (F_ISSET(op, OPT_NOSAVE)) + continue; + cnt = op - optlist; + switch (op->type) { + case OPT_0BOOL: + case OPT_1BOOL: + if (O_ISSET(sp, cnt)) + (void)fprintf(fp, "set %s\n", op->name); + else + (void)fprintf(fp, "set no%s\n", op->name); + break; + case OPT_NUM: + (void)fprintf(fp, + "set %s=%-3ld\n", op->name, O_VAL(sp, cnt)); + break; + case OPT_STR: + if (O_STR(sp, cnt) == NULL) + break; + (void)fprintf(fp, "set "); + for (p = op->name; (ch = *p) != '\0'; ++p) { + if (isblank(ch) || ch == '\\') + (void)putc('\\', fp); + (void)putc(ch, fp); + } + (void)putc('=', fp); + for (p = O_STR(sp, cnt); (ch = *p) != '\0'; ++p) { + if (isblank(ch) || ch == '\\') + (void)putc('\\', fp); + (void)putc(ch, fp); + } + (void)putc('\n', fp); + break; + } + if (ferror(fp)) { + msgq(sp, M_SYSERR, NULL); + return (1); + } + } + return (0); +} + +/* + * opts_search -- + * Search for an option. + * + * PUBLIC: OPTLIST const *opts_search __P((char *)); + */ +OPTLIST const * +opts_search(name) + char *name; +{ + OPTLIST const *op, *found; + OABBREV atmp, *ap; + OPTLIST otmp; + size_t len; + + /* Check list of abbreviations. */ + atmp.name = name; + if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1, + sizeof(OABBREV), opts_abbcmp)) != NULL) + return (optlist + ap->offset); + + /* Check list of options. */ + otmp.name = name; + if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1, + sizeof(OPTLIST), opts_cmp)) != NULL) + return (op); + + /* + * Check to see if the name is the prefix of one (and only one) + * option. If so, return the option. + */ + len = strlen(name); + for (found = NULL, op = optlist; op->name != NULL; ++op) { + if (op->name[0] < name[0]) + continue; + if (op->name[0] > name[0]) + break; + if (!memcmp(op->name, name, len)) { + if (found != NULL) + return (NULL); + found = op; + } + } + return (found); +} + +/* + * opts_nomatch -- + * Standard nomatch error message for options. + * + * PUBLIC: void opts_nomatch __P((SCR *, char *)); + */ +void +opts_nomatch(sp, name) + SCR *sp; + char *name; +{ + msgq_str(sp, M_ERR, name, + "033|set: no %s option: 'set all' gives all option values"); +} + +static int +opts_abbcmp(a, b) + const void *a, *b; +{ + return(strcmp(((OABBREV *)a)->name, ((OABBREV *)b)->name)); +} + +static int +opts_cmp(a, b) + const void *a, *b; +{ + return(strcmp(((OPTLIST *)a)->name, ((OPTLIST *)b)->name)); +} + +/* + * opts_copy -- + * Copy a screen's OPTION array. + * + * PUBLIC: int opts_copy __P((SCR *, SCR *)); + */ +int +opts_copy(orig, sp) + SCR *orig, *sp; +{ + int cnt, rval; + + /* Copy most everything without change. */ + memcpy(sp->opts, orig->opts, sizeof(orig->opts)); + + /* Copy the string edit options. */ + for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) { + if (optlist[cnt].type != OPT_STR || + F_ISSET(&optlist[cnt], OPT_GLOBAL)) + continue; + /* + * If never set, or already failed, NULL out the entries -- + * have to continue after failure, otherwise would have two + * screens referencing the same memory. + */ + if (rval || O_STR(sp, cnt) == NULL) { + o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0); + o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0); + continue; + } + + /* Copy the current string. */ + if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) { + o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0); + goto nomem; + } + + /* Copy the default string. */ + if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt, + OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) { +nomem: msgq(orig, M_SYSERR, NULL); + rval = 1; + } + } + return (rval); +} + +/* + * opts_free -- + * Free all option strings + * + * PUBLIC: void opts_free __P((SCR *)); + */ +void +opts_free(sp) + SCR *sp; +{ + int cnt; + + for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) { + if (optlist[cnt].type != OPT_STR || + F_ISSET(&optlist[cnt], OPT_GLOBAL)) + continue; + if (O_STR(sp, cnt) != NULL) + free(O_STR(sp, cnt)); + if (O_D_STR(sp, cnt) != NULL) + free(O_D_STR(sp, cnt)); + } +} |