Commit 6bd5999d authored by Cheng Renquan's avatar Cheng Renquan Committed by Sam Ravnborg

kconfig: add menu_get_ext_help function to display more information

The three functions are moved from mconf.c, then they can be shared in
all menuconfig & gconfig & xconfig & config.

  +void menu_get_ext_help(struct menu *menu, struct gstr *help)
  +static void get_prompt_str(struct gstr *r, struct property *prop)
  +void get_symbol_str(struct gstr *r, struct symbol *sym)
Signed-off-by: default avatarCheng Renquan <crquan@gmail.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent 544e433a
......@@ -17,6 +17,8 @@ P(menu_get_root_menu,struct menu *,(struct menu *menu));
P(menu_get_parent_menu,struct menu *,(struct menu *menu));
P(menu_has_help,bool,(struct menu *menu));
P(menu_get_help,const char *,(struct menu *menu));
P(get_symbol_str,void,(struct gstr *r, struct symbol *sym));
P(menu_get_ext_help,void,(struct menu *menu, struct gstr *help));
/* symbol.c */
P(symbol_hash,struct symbol *,[SYMBOL_HASHSIZE]);
......
......@@ -9,6 +9,9 @@
#define LKC_DIRECT_LINK
#include "lkc.h"
static const char nohelp_text[] = N_(
"There is no help available for this kernel option.\n");
struct menu rootmenu;
static struct menu **last_entry_ptr;
......@@ -451,3 +454,79 @@ const char *menu_get_help(struct menu *menu)
else
return "";
}
static void get_prompt_str(struct gstr *r, struct property *prop)
{
int i, j;
struct menu *submenu[8], *menu;
str_printf(r, _("Prompt: %s\n"), _(prop->text));
str_printf(r, _(" Defined at %s:%d\n"), prop->menu->file->name,
prop->menu->lineno);
if (!expr_is_yes(prop->visible.expr)) {
str_append(r, _(" Depends on: "));
expr_gstr_print(prop->visible.expr, r);
str_append(r, "\n");
}
menu = prop->menu->parent;
for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent)
submenu[i++] = menu;
if (i > 0) {
str_printf(r, _(" Location:\n"));
for (j = 4; --i >= 0; j += 2) {
menu = submenu[i];
str_printf(r, "%*c-> %s", j, ' ', _(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");
}
}
}
void get_symbol_str(struct gstr *r, struct symbol *sym)
{
bool hit;
struct property *prop;
if (sym && sym->name)
str_printf(r, "Symbol: %s [=%s]\n", sym->name,
sym_get_string_value(sym));
for_all_prompts(sym, prop)
get_prompt_str(r, prop);
hit = false;
for_all_properties(sym, prop, P_SELECT) {
if (!hit) {
str_append(r, " Selects: ");
hit = true;
} else
str_printf(r, " && ");
expr_gstr_print(prop->expr, r);
}
if (hit)
str_append(r, "\n");
if (sym->rev_dep.expr) {
str_append(r, _(" Selected by: "));
expr_gstr_print(sym->rev_dep.expr, r);
str_append(r, "\n");
}
str_append(r, "\n\n");
}
void menu_get_ext_help(struct menu *menu, struct gstr *help)
{
struct symbol *sym = menu->sym;
if (menu_has_help(menu)) {
if (sym->name) {
str_printf(help, "CONFIG_%s:\n\n", sym->name);
str_append(help, _(menu_get_help(menu)));
str_append(help, "\n");
}
} else {
str_append(help, nohelp_text);
}
get_symbol_str(help, sym);
}
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