mirror of
https://github.com/sheumann/hush.git
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310 lines
7.0 KiB
C
310 lines
7.0 KiB
C
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/*
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* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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* Released under the terms of the GNU GPL v2.0.
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*/
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#include <stdlib.h>
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#include <string.h>
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#define LKC_DIRECT_LINK
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#include "lkc.h"
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struct menu rootmenu;
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struct menu *current_menu, *current_entry;
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static struct menu **last_entry_ptr;
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struct file *file_list;
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struct file *current_file;
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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)
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{
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struct menu *menu;
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menu = malloc(sizeof(*menu));
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memset(menu, 0, sizeof(*menu));
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menu->sym = sym;
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menu->parent = current_menu;
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menu->file = current_file;
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menu->lineno = zconf_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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}
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void menu_end_entry(void)
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{
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}
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void menu_add_menu(void)
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{
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current_menu = current_entry;
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last_entry_ptr = ¤t_entry->list;
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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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void menu_add_dep(struct expr *dep)
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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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fprintf(stderr, "%s:%d: type of '%s' redefined from '%s' to '%s'\n",
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current_entry->file->name, current_entry->lineno,
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sym->name ? sym->name : "<choice>", sym_type_name(sym->type), sym_type_name(type));
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}
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struct property *create_prop(enum prop_type type)
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{
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struct property *prop;
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prop = malloc(sizeof(*prop));
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memset(prop, 0, sizeof(*prop));
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prop->type = type;
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prop->file = current_file;
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prop->lineno = zconf_lineno();
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return prop;
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}
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struct property *menu_add_prop(int token, char *prompt, struct symbol *def, struct expr *dep)
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{
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struct property *prop = create_prop(token);
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struct property **propp;
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prop->sym = current_entry->sym;
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prop->menu = current_entry;
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prop->text = prompt;
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prop->def = def;
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E_EXPR(prop->visible) = dep;
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if (prompt)
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current_entry->prompt = prop;
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/* append property to the prop list of symbol */
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if (prop->sym) {
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for (propp = &prop->sym->prop; *propp; 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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void menu_add_prompt(int token, char *prompt, struct expr *dep)
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{
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current_entry->prompt = menu_add_prop(token, prompt, NULL, dep);
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}
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void menu_add_default(int token, struct symbol *def, struct expr *dep)
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{
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current_entry->prompt = menu_add_prop(token, NULL, def, dep);
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}
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void menu_finalize(struct menu *parent)
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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 *parentdep, *basedep, *dep, *dep2;
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sym = parent->sym;
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if (parent->list) {
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if (sym && sym_is_choice(sym)) {
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/* find the first choice value and find out choice type */
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for (menu = parent->list; menu; menu = menu->next) {
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if (menu->sym) {
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current_entry = parent;
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menu_set_type(menu->sym->type);
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current_entry = menu;
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menu_set_type(sym->type);
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break;
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}
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}
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parentdep = expr_alloc_symbol(sym);
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} else if (parent->prompt)
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parentdep = E_EXPR(parent->prompt->visible);
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else
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parentdep = parent->dep;
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for (menu = parent->list; menu; menu = menu->next) {
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basedep = expr_transform(menu->dep);
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basedep = expr_alloc_and(expr_copy(parentdep), 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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prop = menu->sym->prop;
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else
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prop = menu->prompt;
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for (; prop; prop = prop->next) {
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if (prop->menu != menu)
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continue;
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dep = expr_transform(E_EXPR(prop->visible));
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dep = expr_alloc_and(expr_copy(basedep), dep);
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dep = expr_eliminate_dups(dep);
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if (menu->sym && menu->sym->type != S_TRISTATE)
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dep = expr_trans_bool(dep);
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E_EXPR(prop->visible) = dep;
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}
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}
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for (menu = parent->list; menu; menu = menu->next)
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menu_finalize(menu);
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} else if (sym && parent->prompt) {
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basedep = E_EXPR(parent->prompt->visible);
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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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last_menu = NULL;
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for (menu = parent->next; menu; menu = menu->next) {
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dep = menu->prompt ? E_EXPR(menu->prompt->visible) : menu->dep;
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if (!expr_contains_symbol(dep, sym))
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break;
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if (expr_depends_symbol(dep, sym))
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goto next;
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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 = expr_copy(basedep);
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expr_eliminate_eq(&dep, &dep2);
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expr_free(dep);
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if (!expr_is_yes(dep2)) {
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expr_free(dep2);
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break;
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}
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expr_free(dep2);
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next:
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menu_finalize(menu);
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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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}
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for (menu = parent->list; menu; menu = menu->next) {
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if (sym && sym_is_choice(sym) && menu->sym) {
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menu->sym->flags |= SYMBOL_CHOICEVAL;
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current_entry = menu;
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menu_set_type(sym->type);
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menu_add_prop(P_CHOICE, NULL, parent->sym, NULL);
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prop = sym_get_choice_prop(parent->sym);
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//dep = expr_alloc_one(E_CHOICE, dep);
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//dep->right.sym = menu->sym;
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prop->dep = expr_alloc_one(E_CHOICE, prop->dep);
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prop->dep->right.sym = menu->sym;
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}
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if (menu->list && (!menu->prompt || !menu->prompt->text)) {
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for (last_menu = menu->list; ; last_menu = last_menu->next) {
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last_menu->parent = parent;
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if (!last_menu->next)
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break;
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}
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last_menu->next = menu->next;
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menu->next = menu->list;
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menu->list = NULL;
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}
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}
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}
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bool menu_is_visible(struct menu *menu)
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{
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tristate visible;
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if (!menu->prompt)
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return false;
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if (menu->sym) {
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sym_calc_value(menu->sym);
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visible = E_TRI(menu->prompt->visible);
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} else
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visible = E_CALC(menu->prompt->visible);
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return visible != no;
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}
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const char *menu_get_prompt(struct menu *menu)
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{
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if (menu->prompt)
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return menu->prompt->text;
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else if (menu->sym)
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return menu->sym->name;
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return NULL;
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}
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struct menu *menu_get_root_menu(struct menu *menu)
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{
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return &rootmenu;
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}
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struct menu *menu_get_parent_menu(struct menu *menu)
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{
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enum prop_type type;
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while (menu != &rootmenu) {
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menu = menu->parent;
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type = menu->prompt ? menu->prompt->type : 0;
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if (type == P_MENU || type == P_ROOTMENU)
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break;
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}
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return menu;
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}
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struct file *file_lookup(const char *name)
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{
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struct file *file;
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for (file = file_list; file; file = file->next) {
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if (!strcmp(name, file->name))
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return file;
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}
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file = malloc(sizeof(*file));
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memset(file, 0, sizeof(*file));
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file->name = strdup(name);
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file->next = file_list;
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file_list = file;
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return file;
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}
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int file_write_dep(const char *name)
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{
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struct file *file;
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FILE *out;
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if (!name)
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name = ".config.cmd";
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out = fopen(".config.tmp", "w");
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if (!out)
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return 1;
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fprintf(out, "deps_config := \\\n");
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for (file = file_list; file; file = file->next) {
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if (file->next)
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fprintf(out, "\t%s \\\n", file->name);
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else
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fprintf(out, "\t%s\n", file->name);
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}
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fprintf(out, "\n.config include/config.h: $(deps_config)\n\n$(deps_config):\n");
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fclose(out);
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rename(".config.tmp", name);
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return 0;
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}
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