CONFIGURATION!
This commit is contained in:
@@ -0,0 +1,874 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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*/
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#include <ctype.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <list.h>
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#include <xalloc.h>
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#include "lkc.h"
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#include "internal.h"
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static const char nohelp_text[] = "There is no help available for this option.";
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struct menu rootmenu = { .type = M_MENU };
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static struct menu **last_entry_ptr;
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/**
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* menu_next - return the next menu entry with depth-first traversal
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* @menu: pointer to the current menu
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* @root: root of the sub-tree to traverse. If NULL is given, the traveral
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* continues until it reaches the end of the entire menu tree.
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* return: the menu to visit next, or NULL when it reaches the end.
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*/
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struct menu *menu_next(struct menu *menu, struct menu *root)
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{
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if (menu->list)
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return menu->list;
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while (menu != root && !menu->next)
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menu = menu->parent;
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if (menu == root)
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return NULL;
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return menu->next;
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}
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void menu_warn(const struct menu *menu, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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fprintf(stderr, "%s:%d:warning: ", menu->filename, menu->lineno);
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vfprintf(stderr, fmt, ap);
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fprintf(stderr, "\n");
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va_end(ap);
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}
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static void prop_warn(const struct property *prop, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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fprintf(stderr, "%s:%d:warning: ", prop->filename, prop->lineno);
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vfprintf(stderr, fmt, ap);
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fprintf(stderr, "\n");
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va_end(ap);
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}
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void _menu_init(void)
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{
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current_entry = current_menu = &rootmenu;
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last_entry_ptr = &rootmenu.list;
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}
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void menu_add_entry(struct symbol *sym, enum menu_type type)
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{
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struct menu *menu;
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menu = xmalloc(sizeof(*menu));
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memset(menu, 0, sizeof(*menu));
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menu->type = type;
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menu->sym = sym;
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menu->parent = current_menu;
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menu->filename = cur_filename;
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menu->lineno = cur_lineno;
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*last_entry_ptr = menu;
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last_entry_ptr = &menu->next;
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current_entry = menu;
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if (sym)
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list_add_tail(&menu->link, &sym->menus);
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}
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struct menu *menu_add_menu(void)
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{
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last_entry_ptr = ¤t_entry->list;
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current_menu = current_entry;
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return current_menu;
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}
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void menu_end_menu(void)
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{
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last_entry_ptr = ¤t_menu->next;
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current_menu = current_menu->parent;
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}
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/*
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* Rewrites 'm' to 'm' && MODULES, so that it evaluates to 'n' when running
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* without modules
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*/
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static struct expr *rewrite_m(struct expr *e)
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{
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if (!e)
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return e;
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switch (e->type) {
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case E_NOT:
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e = expr_alloc_one(E_NOT, rewrite_m(e->left.expr));
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break;
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case E_OR:
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case E_AND:
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e = expr_alloc_two(e->type,
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rewrite_m(e->left.expr),
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rewrite_m(e->right.expr));
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break;
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case E_SYMBOL:
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/* change 'm' into 'm' && MODULES */
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if (e->left.sym == &symbol_mod)
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return expr_alloc_and(e, expr_alloc_symbol(modules_sym));
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break;
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default:
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break;
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}
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return e;
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}
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void menu_add_dep(struct expr *dep, struct expr *cond)
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{
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if (cond) {
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/*
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* We have "depends on X if Y" and we want:
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* Y != n --> X
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* Y == n --> y
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* That simplifies to: (X || (Y == n))
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*/
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dep = expr_alloc_or(dep,
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expr_trans_compare(cond, E_EQUAL, &symbol_no));
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}
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current_entry->dep = expr_alloc_and(current_entry->dep, dep);
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}
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void menu_set_type(int type)
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{
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struct symbol *sym = current_entry->sym;
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if (sym->type == type)
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return;
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if (sym->type == S_UNKNOWN) {
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sym->type = type;
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return;
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}
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menu_warn(current_entry,
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"ignoring type redefinition of '%s' from '%s' to '%s'",
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sym->name ? sym->name : "<choice>",
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sym_type_name(sym->type), sym_type_name(type));
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}
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static struct property *menu_add_prop(enum prop_type type, struct expr *expr,
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struct expr *dep)
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{
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struct property *prop;
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prop = xmalloc(sizeof(*prop));
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memset(prop, 0, sizeof(*prop));
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prop->type = type;
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prop->filename = cur_filename;
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prop->lineno = cur_lineno;
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prop->menu = current_entry;
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prop->expr = expr;
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prop->visible.expr = dep;
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/* append property to the prop list of symbol */
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if (current_entry->sym) {
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struct property **propp;
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for (propp = ¤t_entry->sym->prop;
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*propp;
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propp = &(*propp)->next)
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;
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*propp = prop;
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}
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return prop;
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}
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struct property *menu_add_prompt(enum prop_type type, const char *prompt,
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struct expr *dep)
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{
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struct property *prop = menu_add_prop(type, NULL, dep);
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if (isspace(*prompt)) {
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prop_warn(prop, "leading whitespace ignored");
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while (isspace(*prompt))
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prompt++;
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}
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if (current_entry->prompt)
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prop_warn(prop, "prompt redefined");
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/* Apply all upper menus' visibilities to actual prompts. */
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if (type == P_PROMPT) {
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struct menu *menu = current_entry;
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while ((menu = menu->parent) != NULL) {
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if (!menu->visibility)
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continue;
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prop->visible.expr = expr_alloc_and(prop->visible.expr,
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menu->visibility);
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}
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}
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current_entry->prompt = prop;
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prop->text = prompt;
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return prop;
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}
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void menu_add_visibility(struct expr *expr)
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{
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current_entry->visibility = expr_alloc_and(current_entry->visibility,
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expr);
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}
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void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
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{
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menu_add_prop(type, expr, dep);
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}
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void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
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{
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menu_add_prop(type, expr_alloc_symbol(sym), dep);
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}
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static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
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{
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return sym2->type == S_INT || sym2->type == S_HEX ||
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(sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
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}
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static void sym_check_prop(struct symbol *sym)
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{
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struct property *prop;
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struct symbol *sym2;
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char *use;
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for (prop = sym->prop; prop; prop = prop->next) {
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switch (prop->type) {
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case P_DEFAULT:
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if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
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prop->expr->type != E_SYMBOL)
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prop_warn(prop,
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"default for config symbol '%s'"
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" must be a single symbol", sym->name);
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if (prop->expr->type != E_SYMBOL)
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break;
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sym2 = prop_get_symbol(prop);
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if (sym->type == S_HEX || sym->type == S_INT) {
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if (!menu_validate_number(sym, sym2))
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prop_warn(prop,
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"'%s': number is invalid",
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sym->name);
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}
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if (sym_is_choice(sym)) {
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struct menu *choice = sym_get_choice_menu(sym2);
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if (!choice || choice->sym != sym)
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prop_warn(prop,
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"choice default symbol '%s' is not contained in the choice",
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sym2->name);
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}
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break;
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case P_SELECT:
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case P_IMPLY:
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use = prop->type == P_SELECT ? "select" : "imply";
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sym2 = prop_get_symbol(prop);
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if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
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prop_warn(prop,
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"config symbol '%s' uses %s, but is "
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"not bool or tristate", sym->name, use);
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else if (sym2->type != S_UNKNOWN &&
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sym2->type != S_BOOLEAN &&
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sym2->type != S_TRISTATE)
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prop_warn(prop,
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"'%s' has wrong type. '%s' only "
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"accept arguments of bool and "
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"tristate type", sym2->name, use);
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break;
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case P_RANGE:
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if (sym->type != S_INT && sym->type != S_HEX)
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prop_warn(prop, "range is only allowed "
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"for int or hex symbols");
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if (!menu_validate_number(sym, prop->expr->left.sym) ||
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!menu_validate_number(sym, prop->expr->right.sym))
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prop_warn(prop, "range is invalid");
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break;
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default:
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;
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}
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}
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}
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static void _menu_finalize(struct menu *parent, bool inside_choice)
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{
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struct menu *menu, *last_menu;
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struct symbol *sym;
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struct property *prop;
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struct expr *basedep, *dep, *dep2;
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sym = parent->sym;
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if (parent->list) {
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/*
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* This menu node has children. We (recursively) process them
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* and propagate parent dependencies before moving on.
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*/
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/* For each child menu node... */
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for (menu = parent->list; menu; menu = menu->next) {
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/*
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* Propagate parent dependencies to the child menu
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* node, also rewriting and simplifying expressions
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*/
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basedep = rewrite_m(menu->dep);
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basedep = expr_transform(basedep);
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basedep = expr_alloc_and(parent->dep, basedep);
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basedep = expr_eliminate_dups(basedep);
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menu->dep = basedep;
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if (menu->sym)
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/*
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* Note: For symbols, all prompts are included
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* too in the symbol's own property list
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*/
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prop = menu->sym->prop;
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else
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/*
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* For non-symbol menu nodes, we just need to
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* handle the prompt
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*/
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prop = menu->prompt;
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/* For each property... */
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for (; prop; prop = prop->next) {
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if (prop->menu != menu)
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/*
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* Two possibilities:
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*
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* 1. The property lacks dependencies
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* and so isn't location-specific,
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* e.g. an 'option'
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*
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* 2. The property belongs to a symbol
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* defined in multiple locations and
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* is from some other location. It
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* will be handled there in that
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* case.
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*
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* Skip the property.
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*/
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continue;
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/*
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* Propagate parent dependencies to the
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* property's condition, rewriting and
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* simplifying expressions at the same time
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*/
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dep = rewrite_m(prop->visible.expr);
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dep = expr_transform(dep);
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dep = expr_alloc_and(basedep, dep);
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dep = expr_eliminate_dups(dep);
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prop->visible.expr = dep;
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/*
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* Handle selects and implies, which modify the
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* dependencies of the selected/implied symbol
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*/
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if (prop->type == P_SELECT) {
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struct symbol *es = prop_get_symbol(prop);
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es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
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expr_alloc_and(expr_alloc_symbol(menu->sym), dep));
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} else if (prop->type == P_IMPLY) {
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struct symbol *es = prop_get_symbol(prop);
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es->implied.expr = expr_alloc_or(es->implied.expr,
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expr_alloc_and(expr_alloc_symbol(menu->sym), dep));
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}
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}
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}
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/*
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* Recursively process children in the same fashion before
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* moving on
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*/
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for (menu = parent->list; menu; menu = menu->next)
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_menu_finalize(menu, sym && sym_is_choice(sym));
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} else if (!inside_choice && sym) {
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/*
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* Automatic submenu creation. If sym is a symbol and A, B, C,
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* ... are consecutive items (symbols, menus, ifs, etc.) that
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* all depend on sym, then the following menu structure is
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* created:
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*
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* sym
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* +-A
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* +-B
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* +-C
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* ...
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*
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* This also works recursively, giving the following structure
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* if A is a symbol and B depends on A:
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*
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* sym
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* +-A
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* | +-B
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* +-C
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* ...
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*/
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basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
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basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
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basedep = expr_eliminate_dups(expr_transform(basedep));
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/* Examine consecutive elements after sym */
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last_menu = NULL;
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for (menu = parent->next; menu; menu = menu->next) {
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dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
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if (!expr_contains_symbol(dep, sym))
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/* No dependency, quit */
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break;
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if (expr_depends_symbol(dep, sym))
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/* Absolute dependency, put in submenu */
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goto next;
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/*
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* Also consider it a dependency on sym if our
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* dependencies contain sym and are a "superset" of
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* sym's dependencies, e.g. '(sym || Q) && R' when sym
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* depends on R.
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*
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* Note that 'R' might be from an enclosing menu or if,
|
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* making this a more common case than it might seem.
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*/
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dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
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dep = expr_eliminate_dups(expr_transform(dep));
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dep2 = basedep;
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expr_eliminate_eq(&dep, &dep2);
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if (!expr_is_yes(dep2)) {
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/* Not superset, quit */
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break;
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}
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/* Superset, put in submenu */
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next:
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_menu_finalize(menu, false);
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menu->parent = parent;
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last_menu = menu;
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}
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if (last_menu) {
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parent->list = parent->next;
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parent->next = last_menu->next;
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last_menu->next = NULL;
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}
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sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
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||||
}
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for (menu = parent->list; menu; menu = menu->next) {
|
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/*
|
||||
* This code serves two purposes:
|
||||
*
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||||
* (1) Flattening 'if' blocks, which do not specify a submenu
|
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* and only add dependencies.
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*
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||||
* (Automatic submenu creation might still create a submenu
|
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* from an 'if' before this code runs.)
|
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*
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||||
* (2) "Undoing" any automatic submenus created earlier below
|
||||
* promptless symbols.
|
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*
|
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* Before:
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*
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* A
|
||||
* if ... (or promptless symbol)
|
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* +-B
|
||||
* +-C
|
||||
* D
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||||
*
|
||||
* After:
|
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*
|
||||
* A
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* if ... (or promptless symbol)
|
||||
* B
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* C
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* D
|
||||
*/
|
||||
if (menu->list && (!menu->prompt || !menu->prompt->text)) {
|
||||
for (last_menu = menu->list; ; last_menu = last_menu->next) {
|
||||
last_menu->parent = parent;
|
||||
if (!last_menu->next)
|
||||
break;
|
||||
}
|
||||
last_menu->next = menu->next;
|
||||
menu->next = menu->list;
|
||||
menu->list = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
if (sym && !(sym->flags & SYMBOL_WARNED)) {
|
||||
if (sym->type == S_UNKNOWN)
|
||||
menu_warn(parent, "config symbol defined without type");
|
||||
|
||||
/* Check properties connected to this symbol */
|
||||
sym_check_prop(sym);
|
||||
sym->flags |= SYMBOL_WARNED;
|
||||
}
|
||||
}
|
||||
|
||||
void menu_finalize(void)
|
||||
{
|
||||
_menu_finalize(&rootmenu, false);
|
||||
}
|
||||
|
||||
bool menu_has_prompt(const struct menu *menu)
|
||||
{
|
||||
if (!menu->prompt)
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
/*
|
||||
* Determine if a menu is empty.
|
||||
* A menu is considered empty if it contains no or only
|
||||
* invisible entries.
|
||||
*/
|
||||
bool menu_is_empty(struct menu *menu)
|
||||
{
|
||||
struct menu *child;
|
||||
|
||||
for (child = menu->list; child; child = child->next) {
|
||||
if (menu_is_visible(child))
|
||||
return(false);
|
||||
}
|
||||
return(true);
|
||||
}
|
||||
|
||||
bool menu_is_visible(struct menu *menu)
|
||||
{
|
||||
struct menu *child;
|
||||
struct symbol *sym;
|
||||
tristate visible;
|
||||
|
||||
if (!menu->prompt)
|
||||
return false;
|
||||
|
||||
if (menu->visibility) {
|
||||
if (expr_calc_value(menu->visibility) == no)
|
||||
return false;
|
||||
}
|
||||
|
||||
sym = menu->sym;
|
||||
if (sym) {
|
||||
sym_calc_value(sym);
|
||||
visible = menu->prompt->visible.tri;
|
||||
} else
|
||||
visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
|
||||
|
||||
if (visible != no)
|
||||
return true;
|
||||
|
||||
if (!sym || sym_get_tristate_value(menu->sym) == no)
|
||||
return false;
|
||||
|
||||
for (child = menu->list; child; child = child->next)
|
||||
if (menu_is_visible(child))
|
||||
return true;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
const char *menu_get_prompt(const struct menu *menu)
|
||||
{
|
||||
if (menu->prompt)
|
||||
return menu->prompt->text;
|
||||
else if (menu->sym)
|
||||
return menu->sym->name;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* menu_get_parent_menu - return the parent menu or NULL
|
||||
* @menu: pointer to the menu
|
||||
* return: the parent menu, or NULL if there is no parent.
|
||||
*/
|
||||
struct menu *menu_get_parent_menu(struct menu *menu)
|
||||
{
|
||||
for (menu = menu->parent; menu; menu = menu->parent)
|
||||
if (menu->type == M_MENU)
|
||||
return menu;
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* menu_get_menu_or_parent_menu - return the parent menu or the menu itself
|
||||
* @menu: pointer to the menu
|
||||
* return: the parent menu. If the given argument is already a menu, return
|
||||
* itself.
|
||||
*/
|
||||
struct menu *menu_get_menu_or_parent_menu(struct menu *menu)
|
||||
{
|
||||
enum prop_type type;
|
||||
|
||||
for (; menu != &rootmenu; menu = menu->parent) {
|
||||
type = menu->prompt ? menu->prompt->type : 0;
|
||||
if (type == P_MENU)
|
||||
break;
|
||||
}
|
||||
return menu;
|
||||
}
|
||||
|
||||
static void get_def_str(struct gstr *r, const struct menu *menu)
|
||||
{
|
||||
str_printf(r, "Defined at %s:%d\n",
|
||||
menu->filename, menu->lineno);
|
||||
}
|
||||
|
||||
static void get_dep_str(struct gstr *r, const struct expr *expr,
|
||||
const char *prefix)
|
||||
{
|
||||
if (!expr_is_yes(expr)) {
|
||||
str_append(r, prefix);
|
||||
expr_gstr_print(expr, r);
|
||||
str_append(r, "\n");
|
||||
}
|
||||
}
|
||||
|
||||
int __attribute__((weak)) get_jump_key_char(void)
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
static void get_prompt_str(struct gstr *r, struct property *prop,
|
||||
struct list_head *head)
|
||||
{
|
||||
int i, j;
|
||||
struct menu *submenu[8], *menu, *location = NULL;
|
||||
struct jump_key *jump = NULL;
|
||||
|
||||
str_printf(r, " Prompt: %s\n", prop->text);
|
||||
|
||||
get_dep_str(r, prop->menu->dep, " Depends on: ");
|
||||
/*
|
||||
* Most prompts in Linux have visibility that exactly matches their
|
||||
* dependencies. For these, we print only the dependencies to improve
|
||||
* readability. However, prompts with inline "if" expressions and
|
||||
* prompts with a parent that has a "visible if" expression have
|
||||
* differing dependencies and visibility. In these rare cases, we
|
||||
* print both.
|
||||
*/
|
||||
if (!expr_eq(prop->menu->dep, prop->visible.expr))
|
||||
get_dep_str(r, prop->visible.expr, " Visible if: ");
|
||||
|
||||
menu = prop->menu;
|
||||
for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) {
|
||||
submenu[i++] = menu;
|
||||
if (location == NULL && menu_is_visible(menu))
|
||||
location = menu;
|
||||
}
|
||||
if (head && location) {
|
||||
jump = xmalloc(sizeof(struct jump_key));
|
||||
jump->target = location;
|
||||
list_add_tail(&jump->entries, head);
|
||||
}
|
||||
|
||||
str_printf(r, " Location:\n");
|
||||
for (j = 0; --i >= 0; j++) {
|
||||
int jk = -1;
|
||||
int indent = 2 * j + 4;
|
||||
|
||||
menu = submenu[i];
|
||||
if (jump && menu == location) {
|
||||
jump->offset = strlen(r->s);
|
||||
jk = get_jump_key_char();
|
||||
}
|
||||
|
||||
if (jk >= 0) {
|
||||
str_printf(r, "(%c)", jk);
|
||||
indent -= 3;
|
||||
}
|
||||
|
||||
str_printf(r, "%*c-> %s", indent, ' ', menu_get_prompt(menu));
|
||||
if (menu->sym) {
|
||||
str_printf(r, " (%s [=%s])", menu->sym->name ?
|
||||
menu->sym->name : "<choice>",
|
||||
sym_get_string_value(menu->sym));
|
||||
}
|
||||
str_append(r, "\n");
|
||||
}
|
||||
}
|
||||
|
||||
static void get_symbol_props_str(struct gstr *r, struct symbol *sym,
|
||||
enum prop_type tok, const char *prefix)
|
||||
{
|
||||
bool hit = false;
|
||||
struct property *prop;
|
||||
|
||||
for_all_properties(sym, prop, tok) {
|
||||
if (!hit) {
|
||||
str_append(r, prefix);
|
||||
hit = true;
|
||||
} else
|
||||
str_printf(r, " && ");
|
||||
expr_gstr_print(prop->expr, r);
|
||||
}
|
||||
if (hit)
|
||||
str_append(r, "\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* head is optional and may be NULL
|
||||
*/
|
||||
static void get_symbol_str(struct gstr *r, struct symbol *sym,
|
||||
struct list_head *head)
|
||||
{
|
||||
struct property *prop;
|
||||
struct menu *menu;
|
||||
|
||||
if (sym && sym->name) {
|
||||
str_printf(r, "Symbol: %s [=%s]\n", sym->name,
|
||||
sym_get_string_value(sym));
|
||||
str_printf(r, "Type : %s\n", sym_type_name(sym->type));
|
||||
if (sym->type == S_INT || sym->type == S_HEX) {
|
||||
prop = sym_get_range_prop(sym);
|
||||
if (prop) {
|
||||
str_printf(r, "Range : ");
|
||||
expr_gstr_print(prop->expr, r);
|
||||
str_append(r, "\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Print the definitions with prompts before the ones without */
|
||||
list_for_each_entry(menu, &sym->menus, link) {
|
||||
if (menu->prompt) {
|
||||
get_def_str(r, menu);
|
||||
get_prompt_str(r, menu->prompt, head);
|
||||
}
|
||||
}
|
||||
|
||||
list_for_each_entry(menu, &sym->menus, link) {
|
||||
if (!menu->prompt) {
|
||||
get_def_str(r, menu);
|
||||
get_dep_str(r, menu->dep, " Depends on: ");
|
||||
}
|
||||
}
|
||||
|
||||
get_symbol_props_str(r, sym, P_SELECT, "Selects: ");
|
||||
if (sym->rev_dep.expr) {
|
||||
expr_gstr_print_revdep(sym->rev_dep.expr, r, yes, "Selected by [y]:\n");
|
||||
expr_gstr_print_revdep(sym->rev_dep.expr, r, mod, "Selected by [m]:\n");
|
||||
expr_gstr_print_revdep(sym->rev_dep.expr, r, no, "Selected by [n]:\n");
|
||||
}
|
||||
|
||||
get_symbol_props_str(r, sym, P_IMPLY, "Implies: ");
|
||||
if (sym->implied.expr) {
|
||||
expr_gstr_print_revdep(sym->implied.expr, r, yes, "Implied by [y]:\n");
|
||||
expr_gstr_print_revdep(sym->implied.expr, r, mod, "Implied by [m]:\n");
|
||||
expr_gstr_print_revdep(sym->implied.expr, r, no, "Implied by [n]:\n");
|
||||
}
|
||||
|
||||
str_append(r, "\n\n");
|
||||
}
|
||||
|
||||
struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head)
|
||||
{
|
||||
struct symbol *sym;
|
||||
struct gstr res = str_new();
|
||||
int i;
|
||||
|
||||
for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
|
||||
get_symbol_str(&res, sym, head);
|
||||
if (!i)
|
||||
str_append(&res, "No matches found.\n");
|
||||
return res;
|
||||
}
|
||||
|
||||
|
||||
void menu_get_ext_help(struct menu *menu, struct gstr *help)
|
||||
{
|
||||
struct symbol *sym = menu->sym;
|
||||
const char *help_text = nohelp_text;
|
||||
|
||||
if (menu->help) {
|
||||
if (sym->name)
|
||||
str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
|
||||
help_text = menu->help;
|
||||
}
|
||||
str_printf(help, "%s\n", help_text);
|
||||
if (sym)
|
||||
get_symbol_str(help, sym, NULL);
|
||||
}
|
||||
|
||||
/**
|
||||
* menu_dump - dump all menu entries in a tree-like format
|
||||
*/
|
||||
void menu_dump(void)
|
||||
{
|
||||
struct menu *menu = &rootmenu;
|
||||
unsigned long long bits = 0;
|
||||
int indent = 0;
|
||||
|
||||
while (menu) {
|
||||
|
||||
for (int i = indent - 1; i >= 0; i--) {
|
||||
if (bits & (1ULL << i)) {
|
||||
if (i > 0)
|
||||
printf("| ");
|
||||
else
|
||||
printf("|-- ");
|
||||
} else {
|
||||
if (i > 0)
|
||||
printf(" ");
|
||||
else
|
||||
printf("`-- ");
|
||||
}
|
||||
}
|
||||
|
||||
switch (menu->type) {
|
||||
case M_CHOICE:
|
||||
printf("choice \"%s\"\n", menu->prompt->text);
|
||||
break;
|
||||
case M_COMMENT:
|
||||
printf("comment \"%s\"\n", menu->prompt->text);
|
||||
break;
|
||||
case M_IF:
|
||||
printf("if\n");
|
||||
break;
|
||||
case M_MENU:
|
||||
printf("menu \"%s\"", menu->prompt->text);
|
||||
if (!menu->sym) {
|
||||
printf("\n");
|
||||
break;
|
||||
}
|
||||
printf(" + ");
|
||||
/* fallthrough */
|
||||
case M_NORMAL:
|
||||
printf("symbol %s\n", menu->sym->name);
|
||||
break;
|
||||
}
|
||||
if (menu->list) {
|
||||
bits <<= 1;
|
||||
menu = menu->list;
|
||||
if (menu->next)
|
||||
bits |= 1;
|
||||
else
|
||||
bits &= ~1;
|
||||
indent++;
|
||||
continue;
|
||||
}
|
||||
|
||||
while (menu && !menu->next) {
|
||||
menu = menu->parent;
|
||||
bits >>= 1;
|
||||
indent--;
|
||||
}
|
||||
|
||||
if (menu) {
|
||||
menu = menu->next;
|
||||
if (menu->next)
|
||||
bits |= 1;
|
||||
else
|
||||
bits &= ~1;
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user