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-rw-r--r--contrib/nvi/common/options.c1141
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));
+ }
+}
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