auto
  +   	ˆl–Ü4ý( ©³( 	Å€fàB¦-ÿÁ„ì¯_†I|¥+ÅÄ ?÷     	// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
 */

#include <sys/types.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <regex.h>

#include <xalloc.h>
#include "lkc.h"

struct symbol symbol_yes = {
	.name = "y",
	.curr = { "y", yes },
	.flags = SYMBOL_CONST|SYMBOL_VALID,
};

struct symbol symbol_mod = {
	.name = "m",
	.curr = { "m", mod },
	.flags = SYMBOL_CONST|SYMBOL_VALID,
};

struct symbol symbol_no = {
	.name = "n",
	.curr = { "n", no },
	.flags = SYMBOL_CONST|SYMBOL_VALID,
};

static struct symbol symbol_empty = {
	.name = "",
	.curr = { "", no },
	.flags = SYMBOL_VALID,
};

struct symbol *modules_sym;
static tristate modules_val;

enum symbol_type sym_get_type(struct symbol *sym)
{
	enum symbol_type type = sym->type;

	if (type == S_TRISTATE) {
		if (sym_is_choice_value(sym) && sym->visible == yes)
			type = S_BOOLEAN;
		else if (modules_val == no)
			type = S_BOOLEAN;
	}
	return type;
}

const char *sym_type_name(enum symbol_type type)
{
	switch (type) {
	case S_BOOLEAN:
		return "bool";
	case S_TRISTATE:
		return "tristate";
	case S_INT:
		return "integer";
	case S_HEX:
		return "hex";
	case S_STRING:
		return "string";
	case S_UNKNOWN:
		return "unknown";
	}
	return "???";
}

struct property *sym_get_choice_prop(struct symbol *sym)
{
	struct property *prop;

	for_all_choices(sym, prop)
		return prop;
	return NULL;
}

static struct property *sym_get_default_prop(struct symbol *sym)
{
	struct property *prop;

	for_all_defaults(sym, prop) {
		prop->visible.tri = expr_calc_value(prop->visible.expr);
		if (prop->visible.tri != no)
			return prop;
	}
	return NULL;
}

struct property *sym_get_range_prop(struct symbol *sym)
{
	struct property *prop;

	for_all_properties(sym, prop, P_RANGE) {
		prop->visible.tri = expr_calc_value(prop->visible.expr);
		if (prop->visible.tri != no)
			return prop;
	}
	return NULL;
}

static long long sym_get_range_val(struct symbol *sym, int base)
{
	sym_calc_value(sym);
	switch (sym->type) {
	case S_INT:
		base = 10;
		break;
	case S_HEX:
		base = 16;
		break;
	default:
		break;
	}
	return strtoll(sym->curr.val, NULL, base);
}

static void sym_validate_range(struct symbol *sym)
{
	struct property *prop;
	int base;
	long long val, val2;
	char str[64];

	switch (sym->type) {
	case S_INT:
		base = 10;
		break;
	case S_HEX:
		base = 16;
		break;
	default:
		return;
	}
	prop = sym_get_range_prop(sym);
	if (!prop)
		return;
	val = strtoll(sym->curr.val, NULL, base);
	val2 = sym_get_range_val(prop->expr->left.sym, base);
	if (val >= val2) {
		val2 = sym_get_range_val(prop->expr->right.sym, base);
		if (val <= val2)
			return;
	}
	if (sym->type == S_INT)
		sprintf(str, "%lld", val2);
	else
		sprintf(str, "0x%llx", val2);
	sym->curr.val = xstrdup(str);
}

static void sym_set_changed(struct symbol *sym)
{
	struct property *prop;

	sym->flags |= SYMBOL_CHANGED;
	for (prop = sym->prop; prop; prop = prop->next) {
		if (prop->menu)
			prop->menu->flags |= MENU_CHANGED;
	}
}

static void sym_set_all_changed(void)
{
	struct symbol *sym;
	int i;

	for_all_symbols(i, sym)
		sym_set_changed(sym);
}

static void sym_calc_visibility(struct symbol *sym)
{
	struct property *prop;
	struct symbol *choice_sym = NULL;
	tristate tri;

	/* any prompt visible? */
	tri = no;

	if (sym_is_choice_value(sym))
		choice_sym = prop_get_symbol(sym_get_choice_prop(sym));

	for_all_prompts(sym, prop) {
		prop->visible.tri = expr_calc_value(prop->visible.expr);
		/*
		 * Tristate choice_values with visibility 'mod' are
		 * not visible if the corresponding choice's value is
		 * 'yes'.
		 */
		if (choice_sym && sym->type == S_TRISTATE &&
		    prop->visible.tri == mod && choice_sym->curr.tri == yes)
			prop->visible.tri = no;

		tri = EXPR_OR(tri, prop->visible.tri);
	}
	if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
		tri = yes;
	if (sym->visible != tri) {
		sym->visible = tri;
		sym_set_changed(sym);
	}
	if (sym_is_choice_value(sym))
		return;
	/* defaulting to "yes" i