/* $Id: rc.c,v 1.9 2001/11/23 20:50:59 ukai Exp $ */
/* 
 * Initialization file etc.
 */
#include "fm.h"
#include "myctype.h"
#include <stdio.h>
#include <errno.h>
#include "parsetag.h"
#include "local.h"
#include "terms.h"
#include <stdlib.h>

struct param_ptr {
    char *name;
    int type;
    int inputtype;
    void *varptr;
    char *comment;
    struct sel_c *select;
};

struct param_section {
    char *name;
    struct param_ptr *params;
};

struct rc_search_table {
    struct param_ptr *param;
    short uniq_pos;
};

static struct rc_search_table *RC_search_table;
static int RC_table_size;

static int rc_initialized = 0;

#define P_INT      0
#define P_SHORT    1
#define P_CHARINT  2
#define P_CHAR     3
#define P_STRING   4
#if defined(USE_SSL) && defined(USE_SSL_VERIFY)
#define P_SSLPATH  5
#endif
#ifdef USE_COLOR
#define P_COLOR    6
#endif
#ifdef JP_CHARSET
#define P_CODE     7
#endif
#define P_PIXELS   8
#define P_NZINT    9

#if LANG == JA
#define CMT_HELPER	 "外部ビューアの編集"
#define CMT_TABSTOP      "タブ幅"
#define CMT_PIXEL_PER_CHAR      "文字幅 (4.0...32.0)"
#define CMT_PAGERLINE    "ページャとして利用した時に保存される行数"
#define CMT_HISTSIZE     "保持するURL履歴の数"
#define CMT_SAVEHIST     "URL履歴の保存"
#define CMT_KANJICODE    "表示用漢字コード"
#define CMT_FRAME        "フレームの自動表示"
#define CMT_ARGV_IS_URL  "scheme のない引数も URL とみなす"
#define CMT_TSELF        "targetが未指定の場合に_selfを使用する"
#define CMT_DISPLINK     "リンク先の自動表示"
#define CMT_MULTICOL     "ファイル名のマルチカラム表示"
#define CMT_ALT_ENTITY   "エンティティを ASCII の代替表現で表す"
#define CMT_COLOR        "カラー表示"
#define CMT_B_COLOR      "文字の色"
#define CMT_A_COLOR      "アンカーの色"
#define CMT_I_COLOR      "画像リンクの色"
#define CMT_F_COLOR      "フォームの色"
#define CMT_BG_COLOR     "背景の色"
#define CMT_ACTIVE_STYLE "現在選択されているリンクの色を指定する"
#define CMT_C_COLOR	 "現在選択されているリンクの色"
#define CMT_VISITED_ANCHOR	"訪れたことがあるリンクは色を変える"
#define CMT_V_COLOR	 "訪れたことがあるリンクの色"
#define CMT_HTTP_PROXY   "HTTPプロキシ(URLで入力)"
#ifdef USE_GOPHER
#define CMT_GOPHER_PROXY "GOPHERプロキシ(URLで入力)"
#endif				/* USE_GOPHER */
#define CMT_FTP_PROXY    "FTPプロキシ(URLで入力)"
#define CMT_NO_PROXY     "プロキシから除外するドメイン"
#define CMT_NOPROXY_NETADDR	"ネットワークアドレスでプロキシ除外のチェック"
#define CMT_NO_CACHE     "Cache を使わない"
#define CMT_DNS_ORDER	"名前解決の順序"
#define CMT_DROOT        "/ で表されるディレクトリ(document root)"
#define CMT_PDROOT       "/~user で表されるディレクトリ"
#define CMT_CGIBIN       "/cgi-bin で表されるディレクトリ"
#define CMT_CONFIRM_QQ   "q での終了時に確認する"
#ifdef EMACS_LIKE_LINEEDIT
#define CMT_EMACS_LIKE_LINEEDIT	"Emacs風の行編集にする"
#endif
#define CMT_SHOW_NUM     "行番号を表示する"
#define CMT_MIMETYPES    "利用するmime.types"
#define CMT_MAILCAP      "利用するmailcap"
#define CMT_EDITOR       "利用するエディタ"
#define CMT_MAILER       "利用するメーラ"
#define CMT_EXTBRZ       "外部ブラウザ"
#define CMT_EXTBRZ2      "外部ブラウザその2"
#define CMT_EXTBRZ3      "外部ブラウザその3"
#define CMT_FTPPASS      "FTPのパスワード(普通は自分のmail addressを使う)"
#ifdef FTPPASS_HOSTNAMEGEN
#define CMT_FTPPASS_HOSTNAMEGEN	"FTPのパスワードのドメイン名を自動生成する"
#endif
#define CMT_USERAGENT    "User-Agent"
#define CMT_ACCEPTLANG   "受けつける言語(Accept-Language:)"
#define CMT_DOCUMENTCODE "文書の文字コード"
#define CMT_SYSTEMCODE   "システムの文字コード"
#define CMT_WRAP         "折り返し検索"
#define CMT_VIEW_UNSEENOBJECTS "背景画像等へのリンクを作る"
#ifdef __EMX__
#define CMT_BGEXTVIEW	 "外部ビューアを別セッションで動かす"
#else
#define CMT_BGEXTVIEW    "外部ビューアをバックグラウンドで動かす"
#endif
#define CMT_EXT_DIRLIST  "ディレクトリリストに外部コマンドを使う"
#define CMT_DIRLIST_CMD  "ディレクトリリスト用コマンド"
#define CMT_IGNORE_NULL_IMG_ALT "空のIMG ALT属性の時にリンク名を表示する"
#define CMT_IFILE        "各ディレクトリのインデックスファイル"
#define CMT_RETRY_HTTP   "URLに自動的に http:// を補う"
#define CMT_DECODE_CTE   "保存時に Content-Transfer-Encoding をデコードする"
#ifdef USE_MOUSE
#define CMT_MOUSE         "マウスを使う"
#define CMT_REVERSE_MOUSE "マウスのドラッグ動作を逆にする"
#endif				/* USE_MOUSE */
#define CMT_CLEAR_BUF     "表示されていないバッファのメモリを開放する"
#define CMT_NOSENDREFERER "Referer: を送らないようにする"
#define CMT_IGNORE_CASE "サーチ時に大文字小文字の区別をしない"
#define CMT_USE_LESSOPEN "LESSOPENを使用"
#if defined(USE_SSL) && defined(USE_SSL_VERIFY)
#define CMT_SSL_VERIFY_SERVER "SSLのサーバ認証を行う"
#define CMT_SSL_CERT_FILE "SSLのクライアント用PEM形式証明書ファイル"
#define CMT_SSL_KEY_FILE "SSLのクライアント用PEM形式秘密鍵ファイル"
#define CMT_SSL_CA_PATH "SSLの認証局のPEM形式証明書群のあるディレクトリへのパス"
#define CMT_SSL_CA_FILE "SSLの認証局のPEM形式証明書群のファイル"
#endif				/* defined(USE_SSL) &&
				 * defined(USE_SSL_VERIFY) */
#ifdef USE_SSL
#define CMT_SSL_FORBID_METHOD "使わないSSLメソッドのリスト(2: SSLv2, 3: SSLv3, t:TLSv1)"
#endif
#ifdef USE_COOKIE
#define CMT_USECOOKIE "クッキーを使用する"
#define CMT_ACCEPTCOOKIE "クッキーを受け付ける"
#define CMT_ACCEPTBADCOOKIE "問題のあるクッキーでも受け付ける"
#define CMT_COOKIE_REJECT_DOMAINS "クッキーを受け付けないドメイン"
#define CMT_COOKIE_ACCEPT_DOMAINS "クッキーを受け付けるドメイン"
#endif

#define CMT_FOLLOW_REDIRECTION "従うリダイレクトの回数"
#define CMT_META_REFRESH "meta refresh に対応する"

#else				/* LANG != JA */


#define CMT_HELPER	 "External Viewer Setup"
#define CMT_TABSTOP      "Tab width"
#define CMT_PIXEL_PER_CHAR      "# of pixels per character (4.0...32.0)"
#define CMT_PAGERLINE    "# of reserved line when w3m is used as a pager"
#define CMT_HISTSIZE     "# of reserved URL"
#define CMT_SAVEHIST     "Save URL history"
/* #define CMT_KANJICODE    "Display Kanji Code" */
#define CMT_FRAME        "Automatic rendering of frame"
#define CMT_ARGV_IS_URL  "Force argument without scheme to URL"
#define CMT_TSELF        "use _self as default target"
#define CMT_DISPLINK     "Automatic display of link URL"
#define CMT_MULTICOL     "Multi-column output of file names"
#define CMT_ALT_ENTITY   "Use alternate expression with ASCII for entity"
#define CMT_COLOR        "Display with color"
#define CMT_B_COLOR      "Color of normal character"
#define CMT_A_COLOR      "Color of anchor"
#define CMT_I_COLOR      "Color of image link"
#define CMT_F_COLOR      "Color of form"
#define CMT_ACTIVE_STYLE "Use active link color"
#define CMT_C_COLOR	 "Color of currently active link"
#define CMT_VISITED_ANCHOR "Use visited link color"
#define CMT_V_COLOR	 "Color of visited link"
#define CMT_BG_COLOR     "Color of background"
#define CMT_HTTP_PROXY   "URL of HTTP proxy host"
#ifdef USE_GOPHER
#define CMT_GOPHER_PROXY "URL of GOPHER proxy host"
#endif				/* USE_GOPHER */
#define CMT_FTP_PROXY    "URL of FTP proxy host"
#define CMT_NO_PROXY     "Domains for direct access (no proxy)"
#define CMT_NOPROXY_NETADDR	"Check noproxy by network address"
#define CMT_NO_CACHE     "Don't use cache"
#define CMT_DNS_ORDER	"Order of name resolution"
#define CMT_DROOT        "Directory corresponds to / (document root)"
#define CMT_PDROOT       "Directory corresponds to /~user"
#define CMT_CGIBIN       "Directory corresponds to /cgi-bin"
#define CMT_CONFIRM_QQ   "Confirm when quitting with q"
#ifdef EMACS_LIKE_LINEEDIT
#define CMT_EMACS_LIKE_LINEEDIT	"Emacs-style line editing"
#endif
#define CMT_SHOW_NUM     "Show line number"
#define CMT_MIMETYPES    "mime.types files"
#define CMT_MAILCAP      "mailcap files"
#define CMT_EDITOR       "Editor"
#define CMT_MAILER       "Mailer"
#define CMT_EXTBRZ       "External Browser"
#define CMT_EXTBRZ2      "Second External Browser"
#define CMT_EXTBRZ3      "Third External Browser"
#define CMT_FTPPASS      "Password for FTP(use your mail address)"
#ifdef FTPPASS_HOSTNAMEGEN
#define CMT_FTPPASS_HOSTNAMEGEN "generate domain part of password for FTP"
#endif
#define CMT_USERAGENT    "User-Agent"
#define CMT_ACCEPTLANG   "Accept-Language"
/* #define CMT_DOCUMENTCODE "Document Charset" */
/* #define CMT_SYSTEMCODE   "System Kanji Code" */
#define CMT_WRAP         "Wrap search"
#define CMT_VIEW_UNSEENOBJECTS "Display unseenobjects (e.g. bgimage) tag"
#ifdef __EMX__
#define CMT_BGEXTVIEW	 "Another session for an external viewer"
#else
#define CMT_BGEXTVIEW    "Background an external viewer"
#endif
#define CMT_EXT_DIRLIST  "Use external program for directory listing"
#define CMT_DIRLIST_CMD  "Directory listing command"
#define CMT_IGNORE_NULL_IMG_ALT	"Ignore IMG ALT=\"\" (display link name)"
#define CMT_IFILE        "Index file for the directory"
#define CMT_RETRY_HTTP   "Prepend http:// to URL automatically"
#define CMT_DECODE_CTE   "Decode Content-Transfer-Encoding when saving"
#ifdef USE_MOUSE
#define CMT_MOUSE         "Use mouse"
#define CMT_REVERSE_MOUSE "Reverse mouse dragging action"
#endif				/* USE_MOUSE */
#define CMT_CLEAR_BUF     "Free memory of the undisplayed buffers"
#define CMT_NOSENDREFERER "Don't send header `Referer:'"
#define CMT_IGNORE_CASE "Ignore case when search"
#define CMT_USE_LESSOPEN "Use LESSOPEN"
#if defined(USE_SSL) && defined(USE_SSL_VERIFY)
#define CMT_SSL_VERIFY_SERVER "Perform SSL server verification"
#define CMT_SSL_CERT_FILE "PEM encoded certificate file of client"
#define CMT_SSL_KEY_FILE "PEM encoded private key file of client"
#define CMT_SSL_CA_PATH "Path to a directory for PEM encoded certificates of CAs"
#define CMT_SSL_CA_FILE "File consisting of PEM encoded certificates of CAs"
#endif				/* defined(USE_SSL) &&
				 * defined(USE_SSL_VERIFY) */
#ifdef USE_SSL
#define CMT_SSL_FORBID_METHOD "List of forbidden SSL method (2: SSLv2, 3: SSLv3, t:TLSv1)"
#endif
#ifdef USE_COOKIE
#define CMT_USECOOKIE   "Use Cookie"
#define CMT_ACCEPTCOOKIE "Accept Cookie"
#define CMT_ACCEPTBADCOOKIE "Invalid Cookie"
#define CMT_COOKIE_REJECT_DOMAINS "Domains from which should reject cookies"
#define CMT_COOKIE_ACCEPT_DOMAINS "Domains from which should accept cookies"
#endif
#define CMT_FOLLOW_REDIRECTION "Follow this number of redirections"
#define CMT_META_REFRESH "Support meta refresh"
#endif				/* LANG != JA */

#define PI_TEXT    0
#define PI_ONOFF   1
#define PI_SEL_C   2

struct sel_c {
    int value;
    char *cvalue;
    char *text;
};

#ifdef JP_CHARSET
static struct sel_c kcodestr[] =
{
    {CODE_EUC,   "E", STR_EUC},
    {CODE_SJIS,  "S", STR_SJIS},
    {CODE_JIS_j, "j", STR_JIS_j},
    {CODE_JIS_N, "N", STR_JIS_N},
    {CODE_JIS_m, "m", STR_JIS_m},
    {CODE_JIS_n, "n", STR_JIS_n},
    {0, NULL, NULL}
};

static struct sel_c dcodestr[] =
{
    {'\0',           "0", "auto detect"},
    {CODE_EUC,       "E", STR_EUC},
    {CODE_SJIS,      "S", STR_SJIS},
    {CODE_INNER_EUC, "I", STR_INNER_EUC},
    {0, NULL, NULL}
};

static struct sel_c scodestr[] =
{
    {CODE_EUC,       "E", STR_EUC},
    {CODE_SJIS,      "S", STR_SJIS},
    {0, NULL, NULL}
};
#endif				/* JP_CHARSET */

#ifdef USE_COLOR
static struct sel_c colorstr[] =
{
#if LANG == JA
    {0, "black", "黒"},
    {1, "red", "赤"},
    {2, "green", "緑"},
    {3, "yellow", "黄"},
    {4, "blue", "青"},
    {5, "magenta", "紫"},
    {6, "cyan", "空色"},
    {7, "white", "白"},
    {8, "terminal", "端末"},
    {0, NULL, NULL}
#else				/* LANG != JA */
    {0, "black", "black"},
    {1, "red", "red"},
    {2, "green", "green"},
    {3, "yellow", "yellow"},
    {4, "blue", "blue"},
    {5, "magenta", "magenta"},
    {6, "cyan", "cyan"},
    {7, "white", "white"},
    {8, "terminal", "terminal"},
    {0, NULL, NULL}
#endif				/* LANG != JA */
};
#endif				/* USE_COLOR */

#ifdef INET6
static struct sel_c dnsorders[] =
{
    {0, "0", "unspec"},
    {1, "1", "inet inet6"},
    {2, "2", "inet6 inet"},
    {0, NULL, NULL}
};
#endif				/* INET6 */

#ifdef USE_COOKIE
static struct sel_c badcookiestr[] = {
  {0, "0", "discard"},
#if 0
  {1, "1", "accept"},
#endif
  {2, "2", "ask"},
  {0, NULL, NULL}
};
#endif				/* USE_COOKIE */

struct param_ptr params1[] =
{
    {"tabstop", P_NZINT, PI_TEXT, (void *) &Tabstop, CMT_TABSTOP, NULL},
    {"pixel_per_char", P_PIXELS, PI_TEXT, (void *) &pixel_per_char, CMT_PIXEL_PER_CHAR, NULL},
#ifdef JP_CHARSET
    {"kanjicode", P_CODE, PI_SEL_C, (void *) &DisplayCode, CMT_KANJICODE, kcodestr},
    {"document_code", P_CODE, PI_SEL_C, (void *) &DocumentCode, CMT_DOCUMENTCODE, dcodestr},
    {"system_code", P_CODE, PI_SEL_C, (void *) &SystemCode, CMT_SYSTEMCODE, scodestr},
#endif				/* JP_CHARSET */
    {"frame", P_CHARINT, PI_ONOFF, (void *) &RenderFrame, CMT_FRAME, NULL},
    {"target_self", P_CHARINT, PI_ONOFF, (void *) &TargetSelf, CMT_TSELF, NULL},
    {"display_link", P_INT, PI_ONOFF, (void *) &displayLink, CMT_DISPLINK, NULL},
    {"ext_dirlist", P_INT, PI_ONOFF, (void *) &UseExternalDirBuffer, CMT_EXT_DIRLIST, NULL},
    {"dirlist_cmd", P_STRING, PI_TEXT, (void *) &DirBufferCommand, CMT_DIRLIST_CMD, NULL},
    {"multicol", P_INT, PI_ONOFF, (void *) &multicolList, CMT_MULTICOL, NULL},
    {"alt_entity", P_CHARINT, PI_ONOFF, (void *) &UseAltEntity, CMT_ALT_ENTITY, NULL},
    {"ignore_null_img_alt", P_INT, PI_ONOFF, (void *) &ignore_null_img_alt, CMT_IGNORE_NULL_IMG_ALT, NULL},
#ifdef VIEW_UNSEENOBJECTS
    {"view_unseenobject", P_INT, PI_ONOFF, (void *) &view_unseenobject, CMT_VIEW_UNSEENOBJECTS, NULL},
#endif				/* VIEW_UNSEENOBJECTS */
    {"show_lnum", P_INT, PI_ONOFF, (void *) &showLineNum, CMT_SHOW_NUM, NULL},
    {NULL, 0, 0, NULL, NULL, NULL},
};

#ifdef USE_COLOR
struct param_ptr params2[] =
{
    {"color", P_INT, PI_ONOFF, (void *) &useColor, CMT_COLOR, NULL},
    {"basic_color", P_COLOR, PI_SEL_C, (void *) &basic_color, CMT_B_COLOR, colorstr},
    {"anchor_color", P_COLOR, PI_SEL_C, (void *) &anchor_color, CMT_A_COLOR, colorstr},
    {"image_color", P_COLOR, PI_SEL_C, (void *) &image_color, CMT_I_COLOR, colorstr},
    {"form_color", P_COLOR, PI_SEL_C, (void *) &form_color, CMT_F_COLOR, colorstr},
#ifdef USE_BG_COLOR
    {"bg_color", P_COLOR, PI_SEL_C, (void *) &bg_color, CMT_BG_COLOR, colorstr},
#endif				/* USE_BG_COLOR */
    {"active_style", P_INT, PI_ONOFF, (void *) &useActiveColor, CMT_ACTIVE_STYLE, NULL},
    {"active_color", P_COLOR, PI_SEL_C, (void *) &active_color, CMT_C_COLOR, colorstr},
    {"visited_anchor", P_INT, PI_ONOFF, (void *) &useVisitedColor, CMT_VISITED_ANCHOR, NULL},
    {"visited_color", P_COLOR, PI_SEL_C, (void *) &visited_color, CMT_V_COLOR, colorstr},
    {NULL, 0, 0, NULL, NULL, NULL},
};
#endif				/* USE_COLOR */


struct param_ptr params3[] =
{
    {"pagerline", P_NZINT, PI_TEXT, (void *) &PagerMax, CMT_PAGERLINE, NULL},
#ifdef USE_HISTORY
    {"history", P_INT, PI_TEXT, (void *) &URLHistSize, CMT_HISTSIZE, NULL},
    {"save_hist", P_INT, PI_ONOFF, (void *) &SaveURLHist, CMT_SAVEHIST, NULL},
#endif				/* USE_HISTORY */
    {"confirm_qq", P_INT, PI_ONOFF, (void *) &confirm_on_quit, CMT_CONFIRM_QQ, NULL},
#ifdef EMACS_LIKE_LINEEDIT
    {"emacs_like_lineedit", P_INT, PI_ONOFF, (void *) &emacs_like_lineedit, CMT_EMACS_LIKE_LINEEDIT, NULL },
#endif
    {"wrap_search", P_INT, PI_ONOFF, (void *) &WrapDefault, CMT_WRAP, NULL},
    {"ignorecase_search", P_INT, PI_ONOFF, (void *) &IgnoreCase, CMT_IGNORE_CASE, NULL},
#ifdef USE_MOUSE
    {"use_mouse", P_INT, PI_ONOFF, (void *) &use_mouse, CMT_MOUSE, NULL},
    {"reverse_mouse", P_INT, PI_ONOFF, (void *) &reverse_mouse, CMT_REVERSE_MOUSE, NULL},
#endif				/* USE_MOUSE */
    {"clear_buffer", P_INT, PI_ONOFF, (void *) &clear_buffer, CMT_CLEAR_BUF, NULL},
    {"decode_cte", P_CHARINT, PI_ONOFF, (void *) &DecodeCTE, CMT_DECODE_CTE, NULL},
    {NULL, 0, 0, NULL, NULL, NULL},
};

struct param_ptr params4[] =
{
    {"http_proxy", P_STRING, PI_TEXT, (void *) &HTTP_proxy, CMT_HTTP_PROXY, NULL},
#ifdef USE_GOPHER
    {"gopher_proxy", P_STRING, PI_TEXT, (void *) &GOPHER_proxy, CMT_GOPHER_PROXY, NULL},
#endif				/* USE_GOPHER */
    {"ftp_proxy", P_STRING, PI_TEXT, (void *) &FTP_proxy, CMT_FTP_PROXY, NULL},
    {"no_proxy", P_STRING, PI_TEXT, (void *) &NO_proxy, CMT_NO_PROXY, NULL},
    {"noproxy_netaddr", P_INT, PI_ONOFF, (void *) &NOproxy_netaddr, CMT_NOPROXY_NETADDR, NULL},
    {"no_cache", P_CHARINT, PI_ONOFF, (void *) &NoCache, CMT_NO_CACHE, NULL},

    {NULL, 0, 0, NULL, NULL, NULL},
};

struct param_ptr params5[] =
{
    {"document_root", P_STRING, PI_TEXT, (void *) &document_root, CMT_DROOT, NULL},
    {"personal_document_root", P_STRING, PI_TEXT, (void *) &personal_document_root, CMT_PDROOT, NULL},
    {"cgi_bin", P_STRING, PI_TEXT, (void *) &cgi_bin, CMT_CGIBIN, NULL},
{"index_file", P_STRING, PI_TEXT, (void *) &index_file, CMT_IFILE, NULL},
    {NULL, 0, 0, NULL, NULL, NULL},
};

struct param_ptr params6[] =
{
    {"mime_types", P_STRING, PI_TEXT, (void *) &mimetypes_files, CMT_MIMETYPES, NULL},
    {"mailcap", P_STRING, PI_TEXT, (void *) &mailcap_files, CMT_MAILCAP, NULL},
    {"editor", P_STRING, PI_TEXT, (void *) &Editor, CMT_EDITOR, NULL},
    {"mailer", P_STRING, PI_TEXT, (void *) &Mailer, CMT_MAILER, NULL},
{"extbrowser", P_STRING, PI_TEXT, (void *) &ExtBrowser, CMT_EXTBRZ, NULL},
    {"extbrowser2", P_STRING, PI_TEXT, (void *) &ExtBrowser2, CMT_EXTBRZ2, NULL},
    {"extbrowser3", P_STRING, PI_TEXT, (void *) &ExtBrowser3, CMT_EXTBRZ3, NULL},
    {"bgextviewer", P_INT, PI_ONOFF, (void *) &BackgroundExtViewer, CMT_BGEXTVIEW, NULL},
    {"use_lessopen", P_INT, PI_ONOFF, (void *) &use_lessopen, CMT_USE_LESSOPEN, NULL},
    {NULL, 0, 0, NULL, NULL, NULL},
};

#if defined(USE_SSL) && defined(USE_SSL_VERIFY)
struct param_ptr params7[] =
{
    {"ssl_verify_server", P_INT, PI_ONOFF, (void *) &ssl_verify_server, CMT_SSL_VERIFY_SERVER, NULL},
    {"ssl_cert_file", P_SSLPATH, PI_TEXT, (void *) &ssl_cert_file, CMT_SSL_CERT_FILE, NULL},
    {"ssl_key_file", P_SSLPATH, PI_TEXT, (void *) &ssl_key_file, CMT_SSL_KEY_FILE, NULL},
    {"ssl_ca_path", P_SSLPATH, PI_TEXT, (void *) &ssl_ca_path, CMT_SSL_CA_PATH, NULL},
    {"ssl_ca_file", P_SSLPATH, PI_TEXT, (void *) &ssl_ca_file, CMT_SSL_CA_FILE, NULL},
    {NULL, 0, 0, NULL, NULL, NULL},
};
#endif				/* defined(USE_SSL) &&
				 * defined(USE_SSL_VERIFY) */

#ifdef USE_COOKIE
struct param_ptr params8[] =
{
    {"use_cookie", P_INT, PI_ONOFF, (void *) &use_cookie, CMT_USECOOKIE, NULL},
    {"accept_cookie", P_INT, PI_ONOFF, (void *) &accept_cookie, CMT_ACCEPTCOOKIE, NULL},
    {"accept_bad_cookie", P_INT,  PI_SEL_C, (void *) &accept_bad_cookie, CMT_ACCEPTBADCOOKIE, badcookiestr},
    {"cookie_reject_domains", P_STRING, PI_TEXT, (void *) &cookie_reject_domains, CMT_COOKIE_REJECT_DOMAINS, NULL},
    {"cookie_accept_domains", P_STRING, PI_TEXT, (void *) &cookie_accept_domains, CMT_COOKIE_ACCEPT_DOMAINS, NULL},
    {NULL, 0, 0, NULL, NULL, NULL},
};
#endif
struct param_ptr params9[] =
{
    {"ftppasswd", P_STRING, PI_TEXT, (void *) &ftppasswd, CMT_FTPPASS, NULL},
#ifdef FTPPASS_HOSTNAMEGEN
    {"ftppass_hostnamegen", P_INT, PI_ONOFF, (void *) &ftppass_hostnamegen, CMT_FTPPASS_HOSTNAMEGEN, NULL},
#endif
    {"user_agent", P_STRING, PI_TEXT, (void *) &UserAgent, CMT_USERAGENT, NULL},
    {"no_referer", P_INT, PI_ONOFF, (void *) &NoSendReferer, CMT_NOSENDREFERER, NULL},
    {"accept_language", P_STRING, PI_TEXT, (void *) &AcceptLang, CMT_ACCEPTLANG, NULL},
    {"argv_is_url", P_CHARINT, PI_ONOFF, (void *) &ArgvIsURL, CMT_ARGV_IS_URL, NULL},
    {"retry_http", P_INT, PI_ONOFF, (void *) &retryAsHttp, CMT_RETRY_HTTP, NULL},
    {"follow_redirection", P_INT, PI_TEXT, &FollowRedirection, CMT_FOLLOW_REDIRECTION, NULL},
    {"meta_refresh", P_CHARINT, PI_ONOFF, (void *) &MetaRefresh, CMT_META_REFRESH, NULL},
#ifdef USE_SSL
    {"ssl_forbid_method", P_STRING, PI_TEXT, (void *) &ssl_forbid_method, CMT_SSL_FORBID_METHOD, NULL},
#endif				/* USE_SSL */
#ifdef INET6
    {"dns_order", P_INT, PI_SEL_C, (void *) &DNS_order, CMT_DNS_ORDER, dnsorders},
#endif				/* INET6 */
    {NULL, 0, 0, NULL, NULL, NULL},
};

struct param_section sections[] =
{
#if LANG == JA
    {"表示関係", params1},
#ifdef USE_COLOR
    {"表示色", params2},
#endif				/* USE_COLOR */
    {"雑多な設定", params3},
    {"ディレクトリ設定", params5},
    {"外部プログラム", params6},
    {"ネットワークの設定", params9},
    {"プロキシの設定", params4},
#if defined(USE_SSL) && defined(USE_SSL_VERIFY)
    {"SSL認証設定", params7},
#endif				/* defined(USE_SSL) &&
				 * defined(USE_SSL_VERIFY) */
#ifdef USE_COOKIE
    {"クッキーの設定", params8},
#endif
#else				/* LANG != JA */
    {"Display", params1},
#ifdef USE_COLOR
    {"Color Setting", params2},
#endif				/* USE_COLOR */
    {"Miscellaneous Setting", params3},
    {"Directory Setting", params5},
    {"External Programs", params6},
    {"Network Setting", params9},
    {"Proxy Setting", params4},
#if defined(USE_SSL) && defined(USE_SSL_VERIFY)
    {"SSL Verification Setting", params7},
#endif				/* defined(USE_SSL) &&
				 * defined(USE_SSL_VERIFY) */
#ifdef USE_COOKIE
    {"Cookie Setting", params8},
#endif
#endif				/* LANG != JA */
    {NULL, NULL}
};

static Str to_str(struct param_ptr *p);

static int
compare_table(struct rc_search_table *a, struct rc_search_table *b)
{
    return strcmp(a->param->name, b->param->name);
}

void
create_option_search_table()
{
    int i, j, k;
    int diff1, diff2;
    char *p, *q;

    /* count table size */
    RC_table_size = 0;
    for (j = 0; sections[j].name != NULL; j++) {
	i = 0;
	while (sections[j].params[i].name) {
	    i++;
	    RC_table_size++;
	}
    }

    RC_search_table = New_N(struct rc_search_table, RC_table_size);
    k = 0;
    for (j = 0; sections[j].name != NULL; j++) {
	i = 0;
	while (sections[j].params[i].name) {
	    RC_search_table[k].param = &sections[j].params[i];
	    k++;
	    i++;
	}
    }

    qsort(RC_search_table, RC_table_size, sizeof(struct rc_search_table),
	   (int (*)(const void *, const void *)) compare_table);

    diff1 = diff2 = 0;
    for (i = 0; i < RC_table_size - 1; i++) {
	p = RC_search_table[i].param->name;
	q = RC_search_table[i + 1].param->name;
	for (j = 0;
	     p[j] != '\0' &&
	     q[j] != '\0' &&
	     p[j] == q[j];
	     j++);
	diff1 = j;
	if (diff1 > diff2)
	    RC_search_table[i].uniq_pos = diff1 + 1;
	else
	    RC_search_table[i].uniq_pos = diff2 + 1;
	diff2 = diff1;
    }
}

struct param_ptr *
search_param(char *name)
{
    size_t b, e, i;
    int cmp;
    int len = strlen(name);

    for (b = 0, e = RC_table_size - 1; b <= e;) {
	i = (b + e) / 2;
	cmp = strncmp(name, RC_search_table[i].param->name, len);

	if (!cmp) {
	    if (len >= RC_search_table[i].uniq_pos) {
		return RC_search_table[i].param;
	    }
	    else {
		while ((cmp = strcmp(name, RC_search_table[i].param->name)) <= 0)
		    if (!cmp)
			return RC_search_table[i].param;
		    else if (i == 0)
			return NULL;
		    else
			i--;
		/* ambiguous */
		return NULL;
	    }
	}
	else if (cmp < 0) {
	    if (i == 0)
		return NULL;
	    e = i - 1;
	}
	else
	    b = i + 1;
    }
    return NULL;
}

void
show_params(FILE * fp)
{
    int i, j, l;
    char *t;
    char *cmt;

    fputs("\nconfiguration parameters\n", fp);
    for (j = 0; sections[j].name != NULL; j++) {
#ifdef JP_CHARSET
	if (InnerCode != DisplayCode)
	    cmt = conv(sections[j].name, InnerCode, DisplayCode)->ptr;
	else
#endif				/* JP_CHARSET */
	    cmt = sections[j].name;
	fprintf(fp, "  section[%d]: %s\n", j, cmt);
	i = 0;
	while (sections[j].params[i].name) {
	    switch (sections[j].params[i].type) {
	    case P_INT:
	    case P_SHORT:
	    case P_CHARINT:
           case P_NZINT:
		t = (sections[j].params[i].inputtype == PI_ONOFF) ? "bool" : "number";
		break;
	    case P_CHAR:
		t = "char";
		break;
	    case P_STRING:
		t = "string";
		break;
#if defined(USE_SSL) && defined(USE_SSL_VERIFY)
	    case P_SSLPATH:
		t = "path";
		break;
#endif
#ifdef USE_COLOR
	    case P_COLOR:
		t = "color";
		break;
#endif
#ifdef JP_CHARSET
	    case P_CODE:
		t = "E|S|j|N|m|n";
		break;
#endif
	    case P_PIXELS:
		t = "number";
		break;
	    }
#ifdef JP_CHARSET
	    if (InnerCode != DisplayCode)
		cmt = conv(sections[j].params[i].comment,
			   InnerCode,
			   DisplayCode)->ptr;
	    else
#endif				/* JP_CHARSET */
		cmt = sections[j].params[i].comment;
	    l = 30 - (strlen(sections[j].params[i].name) + strlen(t));
	    if (l < 0)
		l = 1;
	    fprintf(fp, "    -o %s=<%s>%*s%s\n",
		    sections[j].params[i].name, t, l, " ", cmt);
	    i++;
	}
    }
}

int
str_to_bool(char *value, int old)
{
    if (value == NULL)
	return 1;
    switch (tolower(*value)) {
    case '0':
    case 'f':			/* false */
    case 'n':			/* no */
    case 'u':			/* undef */
	return 0;
    case 'o':
       if (tolower(value[1]) == 'f')    /* off */
           return 0;
       return 1;        /* on */
    case 't':
       if (tolower(value[1]) == 'o')    /* toggle */
           return ! old;
       return 1;        /* true */
    case '!':
    case 'r':            /* reverse */
    case 'x':            /* exchange */
       return ! old;
    }
    return 1;
}

#ifdef USE_COLOR
static int
str_to_color(char *value)
{
    if (value == NULL)
	return 8;		/* terminal */
    switch (tolower(*value)) {
    case '0':
	return 0;		/* black */
    case '1':
    case 'r':
	return 1;		/* red */
    case '2':
    case 'g':
	return 2;		/* green */
    case '3':
    case 'y':
	return 3;		/* yellow */
    case '4':
	return 4;		/* blue */
    case '5':
    case 'm':
	return 5;		/* magenta */
    case '6':
    case 'c':
	return 6;		/* cyan */
    case '7':
    case 'w':
	return 7;		/* white */
    case '8':
    case 't':
	return 8;		/* terminal */
    case 'b':
	if (!strncasecmp(value, "blu", 3))
	    return 4;		/* blue */
	else
	    return 0;		/* black */
    }
    return 8;			/* terminal */
}
#endif

#ifdef JP_CHARSET
char
str_to_code(char *str)
{
    if (str == NULL)
	return CODE_ASCII;
    switch (*str) {
    case CODE_ASCII:
	return CODE_ASCII;
    case CODE_EUC:
    case 'e':
	return CODE_EUC;
    case CODE_SJIS:
    case 's':
	return CODE_SJIS;
    case CODE_JIS_n:
	return CODE_JIS_n;
    case CODE_JIS_m:
	return CODE_JIS_m;
    case CODE_JIS_N:
	return CODE_JIS_N;
    case CODE_JIS_j:
	return CODE_JIS_j;
    case CODE_JIS_J:
	return CODE_JIS_J;
    case CODE_INNER_EUC:
	return CODE_INNER_EUC;
    }
    return CODE_ASCII;
}

char *
code_to_str(char code)
{
    switch (code) {
    case CODE_ASCII:
	return STR_ASCII;
    case CODE_EUC:
	return STR_EUC;
    case CODE_SJIS:
	return STR_SJIS;
    case CODE_JIS_n:
	return STR_JIS_n;
    case CODE_JIS_m:
	return STR_JIS_m;
    case CODE_JIS_N:
	return STR_JIS_N;
    case CODE_JIS_j:
	return STR_JIS_j;
    case CODE_JIS_J:
	return STR_JIS_J;
    case CODE_INNER_EUC:
	return STR_INNER_EUC;
    }
    return "unknown";
}
#endif

static int
set_param(char *name, char *value)
{
    struct param_ptr *p;
    double ppc;

    if (value == NULL)
	return 0;
    p = search_param(name);
    if (p == NULL)
	return 0;
    switch (p->type) {
    case P_INT:
       if (atoi(value) >= 0)
           *(int *) p->varptr = (p->inputtype == PI_ONOFF)
        ? str_to_bool(value, *(int *) p->varptr) : atoi(value);
       break;
    case P_NZINT:
       if (atoi(value) > 0)
           *(int *) p->varptr = atoi(value);
	break;
    case P_SHORT:
       *(short *) p->varptr = (p->inputtype == PI_ONOFF)
        ? str_to_bool(value, *(short *) p->varptr) : atoi(value);
	break;
    case P_CHARINT:
       *(char *) p->varptr = (p->inputtype == PI_ONOFF)
        ? str_to_bool(value, *(char *) p->varptr) : atoi(value);
	break;
    case P_CHAR:
	*(char *) p->varptr = value[0];
	break;
    case P_STRING:
	*(char **) p->varptr = value;
	break;
#if defined(USE_SSL) && defined(USE_SSL_VERIFY)
    case P_SSLPATH:
	if (value != NULL && value[0] != '\0')
	    *(char **) p->varptr = rcFile(value);
	else
	    *(char **) p->varptr = NULL;
	ssl_path_modified = 1;
	break;
#endif
#ifdef USE_COLOR
    case P_COLOR:
	*(int *) p->varptr = str_to_color(value);
	break;
#endif
#ifdef JP_CHARSET
    case P_CODE:
	*(char *) p->varptr = str_to_code(value);
	break;
#endif
    case P_PIXELS:
	ppc = atof(value);
	if (ppc >= MINIMUM_PIXEL_PER_CHAR &&
	    ppc <= MAXIMUM_PIXEL_PER_CHAR)
	    *(double *) p->varptr = ppc;
	break;
    }
    return 1;
}

int
set_param_option(char *option)
{
    Str tmp = Strnew();
    char *p = option, *q;

    while (*p && !IS_SPACE(*p) && *p != '=')
	Strcat_char(tmp, *p++);
    while (*p && IS_SPACE(*p))
	p++;
    if (*p == '=') {
	p++;
	while (*p && IS_SPACE(*p))
	    p++;
    }
    Strlower(tmp);
    if (set_param(tmp->ptr, p))
	goto option_assigned;
    q = tmp->ptr;
    if (!strncmp(q, "no", 2)) {	/* -o noxxx, -o no-xxx, -o no_xxx */
	q += 2;
	if (*q == '-' || *q == '_')
	    q++;
    }
    else if (tmp->ptr[0] == '-')	/* -o -xxx */
	q++;
    else
	return 0;
    if (set_param(q, "0"))
	goto option_assigned;
    return 0;
 option_assigned:
    return 1;
}

char *
get_param_option(char *name)
{
    struct param_ptr *p;

    p = search_param(name);
    return p ? to_str(p)->ptr : NULL;
}

static void
interpret_rc(FILE * f)
{
    Str line;
    Str tmp;
    char *p;

    for (;;) {
	line = Strfgets(f);
	Strchop(line);
	if (line->length == 0)
	    break;
	Strremovefirstspaces(line);
	if (line->ptr[0] == '#')	/* comment */
	    continue;
	tmp = Strnew();
	p = line->ptr;
	while (*p && !IS_SPACE(*p))
	    Strcat_char(tmp, *p++);
	while (*p && IS_SPACE(*p))
	    p++;
	Strlower(tmp);
	set_param(tmp->ptr, p);
    }
}

void
parse_proxy()
{
    if (non_null(HTTP_proxy))
	parseURL(HTTP_proxy, &HTTP_proxy_parsed, NULL);
#ifdef USE_GOPHER
    if (non_null(GOPHER_proxy))
	parseURL(GOPHER_proxy, &GOPHER_proxy_parsed, NULL);
#endif				/* USE_GOPHER */
    if (non_null(FTP_proxy))
	parseURL(FTP_proxy, &FTP_proxy_parsed, NULL);
    if (non_null(NO_proxy))
	set_no_proxy(NO_proxy);
}

#ifdef USE_COOKIE
void
parse_cookie()
{
    if (non_null(cookie_reject_domains))
	Cookie_reject_domains = make_domain_list(cookie_reject_domains);
    if (non_null(cookie_accept_domains))
	Cookie_accept_domains = make_domain_list(cookie_accept_domains);
}
#endif

#ifdef __EMX__
static int
do_mkdir(const char *dir, long mode)
{
    char *r, abs[_MAX_PATH];
    size_t n;

    _abspath(abs, rc_dir, _MAX_PATH);	/* Translate '\\' to '/' */

    if(!(n=strlen(abs)))
	return -1;

    if(*(r=abs+n-1)=='/')	/* Ignore tailing slash if it is */
	*r = 0;

    return mkdir(abs, mode);
}
#else				/* not __EMX__ */
#define do_mkdir(dir,mode) mkdir(dir,mode)
#endif				/* not __EMX__ */

struct table2 *
loadMimeTypes(char *filename)
{
    FILE *f;
    char *d, *type;
    int i, n;
    Str tmp;
    struct table2 *mtypes;

    f = fopen(expandName(filename), "r");
    if (f == NULL)
	return NULL;
    n = 0;
    while (tmp = Strfgets(f), tmp->length > 0) {
	d = tmp->ptr;
	if (d[0] != '#') {
	    d = strtok(d, " \t\n\r");
	    if (d != NULL) {
		d = strtok(NULL, " \t\n\r");
		for (i = 0; d != NULL; i++)
		    d = strtok(NULL, " \t\n\r");
		n += i;
	    }
	}
    }
    fseek(f, 0, 0);
    mtypes = New_N(struct table2, n + 1);
    i = 0;
    while (tmp = Strfgets(f), tmp->length > 0) {
	d = tmp->ptr;
	if (d[0] == '#')
	    continue;
	type = strtok(d, " \t\n\r");
	if (type == NULL)
	    continue;
	while (1) {
	    d = strtok(NULL, " \t\n\r");
	    if (d == NULL)
		break;
	    mtypes[i].item1 = Strnew_charp(d)->ptr;
	    mtypes[i].item2 = Strnew_charp(type)->ptr;
	    i++;
	}
    }
    mtypes[i].item1 = NULL;
    mtypes[i].item2 = NULL;
    fclose(f);
    return mtypes;
}

void
initMimeTypes()
{
    int i;
    TextListItem *tl;

    if (non_null(mimetypes_files))
	mimetypes_list = make_domain_list(mimetypes_files);
    else
	mimetypes_list = NULL;
    if (mimetypes_list == NULL)
	return;
    UserMimeTypes = New_N(struct table2 *, mimetypes_list->nitem);
    for (i = 0, tl = mimetypes_list->first; tl; i++, tl = tl->next)
	UserMimeTypes[i] = loadMimeTypes(tl->ptr);
}

void
sync_with_option(void)
{
    WrapSearch = WrapDefault;
    parse_proxy();
#ifdef USE_COOKIE
    parse_cookie();
#endif
    initMailcap();
    initMimeTypes();
}
    
void
init_rc(char *config_file)
{
    struct stat st;
    FILE *f;
    char	   *tmpdir;

    if (((tmpdir = getenv("TMP")) == NULL || *tmpdir == '\0')
	&& ((tmpdir = getenv("TEMP")) == NULL || *tmpdir == '\0')
	&& ((tmpdir = getenv("TMPDIR")) == NULL || *tmpdir == '\0'))
	    tmpdir = "/tmp";

    if (rc_initialized)
	return;
    rc_initialized = 1;

    if (stat(rc_dir, &st) < 0) {
	if (errno == ENOENT) {	/* no directory */
	    if (do_mkdir(rc_dir, 0700) < 0) {
		fprintf(stderr, "Can't create config directory (%s)!", rc_dir);
		rc_dir = tmpdir;
		rc_dir_is_tmp = TRUE;
		return;
	    }
	    else {
		stat(rc_dir, &st);
	    }
	}
	else {
	    fprintf(stderr, "Can't open config directory (%s)!", rc_dir);
	    rc_dir = tmpdir;
	    rc_dir_is_tmp = TRUE;
	    return;
	}
    }
    if (!S_ISDIR(st.st_mode)) {
	/* not a directory */
	fprintf(stderr, "%s is not a directory!", rc_dir);
	rc_dir = tmpdir;
	rc_dir_is_tmp = TRUE;
	return;
    }

    /* open config file */
    if ((f = fopen(libFile(W3MCONFIG), "rt")) != NULL) {
	interpret_rc(f);
	fclose(f);
    }
    if (config_file == NULL)
	config_file = rcFile(CONFIG_FILE);
    if ((f = fopen(config_file, "rt")) != NULL) {
	interpret_rc(f);
	fclose(f);
    }
    sync_with_option();
}


static char optionpanel_src1[] =
"<html><head><title>Option Setting Panel</title></head>\
<body><center><b>Option Setting Panel</b><br><b>(w3m version %s)</b></center><p>\n"
"<a href=\"file:///$LIB/" W3MHELPERPANEL_CMDNAME "?mode=panel\">%s</a>\n"
"<form method=internal action=option>";

static Str
to_str(struct param_ptr *p)
{
    switch (p->type) {
    case P_INT:
#ifdef USE_COLOR
    case P_COLOR:
#endif
    case P_NZINT:
	return Sprintf("%d", *(int *) p->varptr);
    case P_SHORT:
	return Sprintf("%d", *(short *) p->varptr);
    case P_CHARINT:
	return Sprintf("%d", *(char *) p->varptr);
    case P_CHAR:
#ifdef JP_CHARSET
    case P_CODE:
#endif
	return Sprintf("%c", *(char *) p->varptr);
    case P_STRING:
#if defined(USE_SSL) && defined(USE_SSL_VERIFY)
    case P_SSLPATH:
#endif
	return Strnew_charp(*(char **) p->varptr);
    case P_PIXELS:
	return Sprintf("%g", *(double *) p->varptr);
    }
    /* not reached */
    return NULL;
}

Buffer *
load_option_panel(void)
{
    Str src = Sprintf(optionpanel_src1, version, CMT_HELPER);
    struct param_ptr *p;
    struct sel_c *s;
    int x, i;
    Str tmp;

    Strcat_charp(src, "<table><tr><td>");
    for (i = 0; sections[i].name != NULL; i++) {
	Strcat_m_charp(src, "<h1>",
		       sections[i].name,
		       "</h1>", NULL);
	p = sections[i].params;
	Strcat_charp(src, "<table width=100% cellpadding=0>");
	while (p->name) {
	    Strcat_m_charp(src, "<tr><td>", p->comment, NULL);
	    Strcat(src, Sprintf("</td><td width=%d>",
		(int)(28 * pixel_per_char)));
	    switch (p->inputtype) {
	    case PI_TEXT:
		Strcat_m_charp(src, "<input type=text name=",
			       p->name,
			       " value=\"",
			       html_quote( to_str(p)->ptr ),
			       "\">", NULL);
		break;
	    case PI_ONOFF:
		x = atoi(to_str(p)->ptr);
		Strcat_m_charp(src, "<input type=radio name=",
			       p->name,
			       " value=1",
			       (x ? " checked" : ""),
			       ">ON&nbsp;&nbsp;<input type=radio name=",
			       p->name,
			       " value=0",
			       (x ? "" : " checked"),
			       ">OFF", NULL);
		break;
	    case PI_SEL_C:
		tmp = to_str(p);
		Strcat_m_charp(src, "<select name=",
			       p->name,
			       ">", NULL);
		for (s = p->select; s->text != NULL; s++) {
		    Strcat_charp(src, "<option value=");
		    Strcat(src, Sprintf("%s\n", s->cvalue));
		    if ((p->type != P_CHAR &&
#ifdef JP_CHARSET
			 p->type != P_CODE &&
#endif
			 s->value == atoi(tmp->ptr)) ||
			((p->type == P_CHAR
#ifdef JP_CHARSET
			  || p->type == P_CODE
#endif
			    ) && (char) (s->value) == *(tmp->ptr)))
			Strcat_charp(src, " selected");
		    Strcat_char(src, '>');
		    Strcat_charp(src, s->text);
		}
		Strcat_charp(src, "</select>");
	    }
	    Strcat_charp(src, "</td></tr>\n");
	    p++;
	}
	Strcat_charp(src, "<tr><td></td><td><p><input type=submit value=\"OK\"></td></tr>");
	Strcat_charp(src, "</table><hr width=50%>");
    }
    Strcat_charp(src, "</table></form></body></html>");
    return loadHTMLString(src);
}

void
panel_set_option(struct parsed_tagarg *arg)
{
    FILE *f = NULL;

    if (rc_dir_is_tmp) {
	disp_message("There's no ~/.w3m directory... config not saved", FALSE);
    }
    else {
	f = fopen(config_file, "wt");
	if (f == NULL) {
	    disp_message("Can't write option!", FALSE);
	}
    }
    while (arg) {
	if (set_param(arg->arg, arg->value)) {
	    if (f)
		fprintf(f, "%s %s\n", arg->arg, arg->value);
	}
	arg = arg->next;
    }
    if (f)
	fclose(f);
    sync_with_option();
    backBf();
}

char *
rcFile(char *base)
{
    if (base &&
	(base[0] == '/' ||
	 (base[0] == '.' && (base[1] == '/' || (base[1] == '.' && base[2] == '/'))) ||
	 (base[0] == '~' && base[1] == '/')))
	return expandName(base);
    else {
	Str file = Strnew_charp(rc_dir);

	if (Strlastchar(file) != '/')
	    Strcat_char(file, '/');
	Strcat_charp(file, base);
	return expandName(file->ptr);
    }
}

char *
libFile(char *base)
{
    Str file = Strnew_charp(w3m_lib_dir());
    Strcat_char(file, '/');
    Strcat_charp(file, base);
    return expandName(file->ptr);
}

char *
helpFile(char *base)
{
    Str file = Strnew_charp(w3m_help_dir());
    Strcat_char(file, '/');
    Strcat_charp(file, base);
    return expandName(file->ptr);
}