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

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

scripts/kconfig/lkc_proto.h

+2 −0
Original line number Diff line number Diff line
@@ -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]);

scripts/kconfig/menu.c

+79 −0
Original line number Diff line number Diff line
@@ -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);

}