rxvt-unicode/src/xdefaults.C

/*--------------------------------*-C-*---------------------------------*
 * File:        xdefaults.C
 *----------------------------------------------------------------------*
 *
 * All portions of code are copyright by their respective author/s.
 * Copyright (c) 1994      Robert Nation <nation@rocket.sanders.lockheed.com>
 *                              - original version
 * Copyright (c) 1997,1998 mj olesen <olesen@me.queensu.ca>
 * Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *----------------------------------------------------------------------*/
/*----------------------------------------------------------------------*
 * get resources from ~/.Xdefaults or ~/.Xresources with the memory-saving
 * default or with XGetDefault() (#define USE_XGETDEFAULT)
 *----------------------------------------------------------------------*/

#include "../config.h"          /* NECESSARY */
#include "rxvt.h"               /* NECESSARY */
#include "version.h"

#include <sys/utsname.h>

#ifdef KEYSYM_RESOURCE
#include "keyboard.h"
#endif

/* #define DEBUG_RESOURCES */

/*{{{ monolithic option/resource structure: */
/*
 * `string' options MUST have a usage argument
 * `switch' and `boolean' options have no argument
 * if there's no desc (ription), it won't appear in rxvt_usage ()
 */

/* INFO () - descriptive information only */
#define INFO(opt, arg, desc)                                    \
    {0, -1, NULL, (opt), (arg), (desc)}

/* STRG () - command-line option, with/without resource */
#define STRG(rsp, kw, opt, arg, desc)                           \
    {0, (rsp), (kw), (opt), (arg), (desc)}

/* RSTRG () - resource/long-option */
#define RSTRG(rsp, kw, arg)                                     \
    {0, (rsp), (kw), NULL, (arg), NULL}

/* BOOL () - regular boolean `-/+' flag */
#define BOOL(rsp, kw, opt, flag, desc)                          \
    { (Opt_Boolean| (flag)), (rsp), (kw), (opt), NULL, (desc)}

/* SWCH () - `-' flag */
#define SWCH(opt, flag, desc)                                   \
    { (flag), -1, NULL, (opt), NULL, (desc)}

/* convenient macros */
#define optList_strlen(i)                                               \
    (optList[i].flag ? 0 : (optList[i].arg ? strlen (optList[i].arg) : 1))
#define optList_isBool(i)                                               \
    (optList[i].flag & Opt_Boolean)
#define optList_isReverse(i)                                            \
    (optList[i].flag & Opt_Reverse)
#define optList_size                                                    \
    (sizeof (optList) / sizeof (optList[0]))

static const struct
  {
    const unsigned long flag;   /* Option flag */
    const int       doff;       /* data offset */
    const char     *kw;         /* keyword */
    const char     *opt;        /* option */
    const char     *arg;        /* argument */
    const char     *desc;       /* description */
  }
optList[] = {
              STRG (Rs_display_name, NULL, "d", NULL, NULL),    /* short form */
              STRG (Rs_display_name, NULL, "display", "string", "X server to contact"),
              STRG (Rs_term_name, "termName", "tn", "string", "value of the TERM environment variable"),
              STRG (Rs_geometry, NULL, "g", NULL, NULL),        /* short form */
              STRG (Rs_geometry, "geometry", "geometry", "geometry", "size (in characters) and position"),
              SWCH ("C", Opt_console, "intercept console messages"),
              SWCH ("iconic", Opt_iconic, "start iconic"),
              SWCH ("ic", Opt_iconic, NULL),    /* short form */
              BOOL (Rs_reverseVideo, "reverseVideo", "rv", Opt_reverseVideo, "reverse video"),
              BOOL (Rs_loginShell, "loginShell", "ls", Opt_loginShell, "login shell"),
              BOOL (Rs_jumpScroll, "jumpScroll", "j", Opt_jumpScroll, "jump scrolling"),
              BOOL (Rs_pastableTabs, "pastableTabs", "ptab", Opt_pastableTabs, "tab characters are pastable"),
#if HAVE_SCROLLBARS
              RSTRG (Rs_scrollstyle, "scrollstyle", "mode"),
              BOOL (Rs_scrollBar, "scrollBar", "sb", Opt_scrollBar, "scrollbar"),
              BOOL (Rs_scrollBar_right, "scrollBar_right", "sr", Opt_scrollBar_right, "scrollbar right"),
              BOOL (Rs_scrollBar_floating, "scrollBar_floating", "st", Opt_scrollBar_floating, "scrollbar without a trough"),
              RSTRG (Rs_scrollBar_align, "scrollBar_align", "mode"),
              STRG (Rs_scrollBar_thickness, "thickness", "sbt", "number", "scrollbar thickness/width in pixels"),
#endif
              BOOL (Rs_scrollTtyOutput, "scrollTtyOutput", NULL, Opt_scrollTtyOutput, NULL),
              BOOL (Rs_scrollTtyOutput, NULL, "si", Opt_Reverse | Opt_scrollTtyOutput, "scroll-on-tty-output inhibit"),
              BOOL (Rs_scrollTtyKeypress, "scrollTtyKeypress", "sk", Opt_scrollTtyKeypress, "scroll-on-keypress"),
              BOOL (Rs_scrollWithBuffer, "scrollWithBuffer", "sw", Opt_scrollWithBuffer, "scroll-with-buffer"),
#if TRANSPARENT
              BOOL (Rs_transparent, "inheritPixmap", "ip", Opt_transparent, "inherit parent pixmap"),
              SWCH ("tr", Opt_transparent, NULL),
# if TINTING
              STRG (Rs_color + Color_tint, "tintColor", "tint", "color", "tint color"),
# endif
#endif
#if OFF_FOCUS_FADING
              STRG (Rs_fade, "fading", "fade", "%", "fade colors x% percent when rxvt-unicode is losing focus"),
              STRG (Rs_color + Color_fade, "fadeColor", "fadecolor", "color", "target color for off-focus fading"),
#endif
#if TINTING
              STRG (Rs_shade, "shading", "sh", "%", "shade background by x% when tinting."),
#endif
              BOOL (Rs_utmpInhibit, "utmpInhibit", "ut", Opt_utmpInhibit, "utmp inhibit"),
#ifndef NO_BELL
              BOOL (Rs_visualBell, "visualBell", "vb", Opt_visualBell, "visual bell"),
# if ! defined(NO_MAPALERT) && defined(MAPALERT_OPTION)
              BOOL (Rs_mapAlert, "mapAlert", NULL, Opt_mapAlert, NULL),
# endif
#endif
#ifdef META8_OPTION
              BOOL (Rs_meta8, "meta8", NULL, Opt_meta8, NULL),
#endif
#ifdef MOUSE_WHEEL
              BOOL (Rs_mouseWheelScrollPage, "mouseWheelScrollPage", NULL, Opt_mouseWheelScrollPage, NULL),
#endif
#if ENABLE_FRILLS
              BOOL (Rs_tripleclickwords, "tripleclickwords", "tcw", Opt_tripleclickwords, "triple click word selection"),
              BOOL (Rs_insecure, "insecure", "insecure", Opt_insecure, "enable possibly insecure escape sequences"),
              BOOL (Rs_cursorUnderline, "cursorUnderline", "uc", Opt_cursorUnderline, "underline cursor"),
#endif
#if CURSOR_BLINK
              BOOL (Rs_cursorBlink, "cursorBlink", "bc", Opt_cursorBlink, "blinking cursor"),
#endif
#ifdef POINTER_BLANK
              BOOL (Rs_pointerBlank, "pointerBlank", "pb", Opt_pointerBlank, "switch off pointer after delay"),
#endif
              STRG (Rs_color + Color_bg, "background", "bg", "color", "background color"),
              STRG (Rs_color + Color_fg, "foreground", "fg", "color", "foreground color"),
              RSTRG (Rs_color + minCOLOR + 0, "color0", "color"),
              RSTRG (Rs_color + minCOLOR + 1, "color1", "color"),
              RSTRG (Rs_color + minCOLOR + 2, "color2", "color"),
              RSTRG (Rs_color + minCOLOR + 3, "color3", "color"),
              RSTRG (Rs_color + minCOLOR + 4, "color4", "color"),
              RSTRG (Rs_color + minCOLOR + 5, "color5", "color"),
              RSTRG (Rs_color + minCOLOR + 6, "color6", "color"),
              RSTRG (Rs_color + minCOLOR + 7, "color7", "color"),
#ifndef NO_BRIGHTCOLOR
              RSTRG (Rs_color + minBrightCOLOR + 0, "color8", "color"),
              RSTRG (Rs_color + minBrightCOLOR + 1, "color9", "color"),
              RSTRG (Rs_color + minBrightCOLOR + 2, "color10", "color"),
              RSTRG (Rs_color + minBrightCOLOR + 3, "color11", "color"),
              RSTRG (Rs_color + minBrightCOLOR + 4, "color12", "color"),
              RSTRG (Rs_color + minBrightCOLOR + 5, "color13", "color"),
              RSTRG (Rs_color + minBrightCOLOR + 6, "color14", "color"),
              RSTRG (Rs_color + minBrightCOLOR + 7, "color15", "color"),
#endif                          /* NO_BRIGHTCOLOR */
#ifndef NO_BOLD_UNDERLINE_REVERSE
              RSTRG (Rs_color + Color_BD, "colorBD", "color"),
              RSTRG (Rs_color + Color_IT, "colorIT", "color"),
              RSTRG (Rs_color + Color_UL, "colorUL", "color"),
              RSTRG (Rs_color + Color_RV, "colorRV", "color"),
#endif                          /* ! NO_BOLD_UNDERLINE_REVERSE */
#if ENABLE_FRILLS
              RSTRG (Rs_color + Color_underline, "underlineColor", "color"),
#endif
#ifdef KEEP_SCROLLCOLOR
              RSTRG (Rs_color + Color_scroll, "scrollColor", "color"),
              RSTRG (Rs_color + Color_trough, "troughColor", "color"),
#endif                          /* KEEP_SCROLLCOLOR */
#ifdef OPTION_HC
              STRG (Rs_color + Color_HC, "highlightColor", "hc", "color", "highlight color"),
#endif
#ifndef NO_CURSORCOLOR
              STRG (Rs_color + Color_cursor, "cursorColor", "cr", "color", "cursor color"),
              /* command-line option = resource name */
              RSTRG (Rs_color + Color_cursor2, "cursorColor2", "color"),
#endif                          /* NO_CURSORCOLOR */
              STRG (Rs_color + Color_pointer_fg, "pointerColor", "pr", "color", "pointer color"),
              STRG (Rs_color + Color_pointer_bg, "pointerColor2", "pr2", "color", "pointer bg color"),
              STRG (Rs_color + Color_border, "borderColor", "bd", "color", "border color"),
#if defined (XPM_BACKGROUND) || (MENUBAR_MAX)
              RSTRG (Rs_path, "path", "search path"),
#endif                          /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */
#ifdef XPM_BACKGROUND
              STRG (Rs_backgroundPixmap, "backgroundPixmap", "pixmap", "file[;geom]", "background pixmap"),
#endif                          /* XPM_BACKGROUND */
#if (MENUBAR_MAX)
              RSTRG (Rs_menu, "menu", "name[;tag]"),
#endif
              /* fonts: command-line option = resource name */
              STRG (Rs_font, "font", "fn", "fontname", "normal text font"),
#if ENABLE_STYLES
              STRG (Rs_boldFont, "boldFont", "fb", "fontname", "bold font"),
              STRG (Rs_italicFont, "italicFont", "fi", "fontname", "italic font"),
              STRG (Rs_boldItalicFont, "boldItalicFont", "fbi", "fontname", "bold italic font"),
#endif
#ifdef USE_XIM
              STRG (Rs_inputMethod, "inputMethod", "im", "name", "name of input method"),
              STRG (Rs_preeditType, "preeditType", "pt", "style", "input style: style = OverTheSpot|OffTheSpot|Root"),
              STRG (Rs_imLocale, "imLocale", "imlocale", "string", "locale to use for input method"),
              STRG (Rs_imFont, "imFont", "imfont", "fontname", "fontset for styles OverTheSpot and OffTheSpot"),
#endif                          /* USE_XIM */
              STRG (Rs_name, NULL, "name", "string", "client instance, icon, and title strings"),
              STRG (Rs_title, "title", "title", "string", "title name for window"),
              STRG (Rs_title, NULL, "T", NULL, NULL),   /* short form */
              STRG (Rs_iconName, "iconName", "n", "string", "icon name for window"),
              STRG (Rs_saveLines, "saveLines", "sl", "number", "number of scrolled lines to save"),
#if ENABLE_XEMBED
              STRG (Rs_embed, NULL, "embed", "windowid", "window id to embed terminal in"),
#endif
#if ENABLE_FRILLS
              STRG (Rs_pty_fd, NULL, "pty-fd", "fileno", "file descriptor of pty to use"),
              BOOL (Rs_hold, "hold", "hold", Opt_hold, "retain window after shell exit"),
              STRG (Rs_ext_bwidth, "externalBorder", "w", "number", "external border in pixels"),
              STRG (Rs_ext_bwidth, NULL, "bw", NULL, NULL),
              STRG (Rs_ext_bwidth, NULL, "borderwidth", NULL, NULL),
              STRG (Rs_int_bwidth, "internalBorder", "b", "number", "internal border in pixels"),
              BOOL (Rs_borderLess, "borderLess", "bl", Opt_borderLess, "borderless window"),
              STRG (Rs_lineSpace, "lineSpace", "lsp", "number", "number of extra pixels between rows"),
#endif
#ifdef POINTER_BLANK
              RSTRG (Rs_pointerBlankDelay, "pointerBlankDelay", "number"),
#endif
#ifndef NO_BACKSPACE_KEY
              RSTRG (Rs_backspace_key, "backspacekey", "string"),
#endif
#ifndef NO_DELETE_KEY
              RSTRG (Rs_delete_key, "deletekey", "string"),
#endif
              RSTRG (Rs_selectstyle, "selectstyle", "mode"),
#ifdef PRINTPIPE
              RSTRG (Rs_print_pipe, "print-pipe", "string"),
#endif
              STRG (Rs_modifier, "modifier", "mod", "modifier", "meta modifier = alt|meta|hyper|super|mod1|...|mod5"),
#ifdef CUTCHAR_RESOURCE
              RSTRG (Rs_cutchars, "cutchars", "string"),
#endif                          /* CUTCHAR_RESOURCE */
              RSTRG (Rs_answerbackstring, "answerbackString", "string"),
#ifndef NO_SECONDARY_SCREEN
              BOOL (Rs_secondaryScreen, "secondaryScreen", "ssc", Opt_secondaryScreen, "enable secondary screen"),
              BOOL (Rs_secondaryScroll, "secondaryScroll", "ssr", Opt_secondaryScroll, "enable secondary screen scroll"),
#endif
#if 0 && TODO
#if !defined(NO_RESOURCES) && defined(USE_XGETDEFAULT)
              INFO ("xrm", "string", "X resource"),
#endif
#endif
              INFO ("e", "command arg ...", "command to execute")
            };

#undef INFO
#undef STRG
#undef RSTRG
#undef SWCH
#undef BOOL
/*}}} */

static const char releasestring[] = "rxvt-unicode (" RXVTNAME ") v" VERSION " - released: " DATE "\n";
static const char optionsstring[] = "options: "
#if XFT
                                    "xft,"
#endif
#if ENABLE_STYLES
                                    "styles,"
#endif
#if ENABLE_COMBINING
                                    "combining,"
#endif
#if TEXT_BLINK
                                    "blink,"
#endif
#if ISO_14755
                                    "iso14755,"
#endif
#if UNICODE_3
                                    "unicode3,"
#endif
                                    "encodings=eu+vn"
#if ENCODING_JP
                                    "+jp"
#endif
#if ENCODING_JP_EXT
                                    "+jp-ext"
#endif
#if ENCODING_KR
                                    "+kr"
#endif
#if ENCODING_ZH
                                    "+zh"
#endif
#if ENCODING_ZH_EXT
                                    "+zh-ext"
#endif
                                    ","
#if OFF_FOCUS_FADING
                                    "fade,"
#endif
#if defined(XPM_BACKGROUND)
                                    "XPM,"
#endif
#if defined(TRANSPARENT)
                                    "transparent,"
#endif
#if TINTING
                                    "tint,"
#endif
#if defined(UTMP_SUPPORT)
                                    "utmp,"
#endif
#if defined(MENUBAR)
                                    "menubar,"
#endif
#if defined(USE_XIM)
                                    "XIM,"
#endif
                                    "scrollbars="
#if !defined(HAVE_SCROLLBARS)
                                    "NONE"
#else
# if defined(PLAIN_SCROLLBAR)
                                    "plain"
#  if defined(RXVT_SCROLLBAR) || defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR)
                                    "+"
#  endif
# endif
# if defined(RXVT_SCROLLBAR)
                                    "rxvt"
#  if defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR)
                                    "+"
#  endif
# endif
# if defined(NEXT_SCROLLBAR)
                                    "NeXT"
#  if defined(XTERM_SCROLLBAR)
                                    "+"
#  endif
# endif
# if defined(XTERM_SCROLLBAR)
                                    "xterm"
# endif
#endif
                                    ","
#if defined(NO_BACKSPACE_KEY)
                                    "no_backspace,"
#endif
#if defined(NO_DELETE_KEY)
                                    "no_delete,"
#endif
#if EIGHT_BIT_CONTROLS
                                    "8bitctrls,"
#endif
#if !defined(NO_STRINGS)
                                    "strings,"
#endif
#if defined(ENABLE_FRILLS)
                                    "frills,"
#endif
#if defined(PREFER_24BIT)
                                    "24bit,"
#endif
#if defined(SELECTION_SCROLLING)
                                    "selectionscrolling,"
#endif
#if MOUSE_WHEEL
                                    "wheel,"
#endif
#if MOUSE_SLIP_WHEELING
                                    "slipwheel,"
#endif
#if defined(SMART_RESIZE)
                                    "smart-resize,"
#endif
#if defined(CURSOR_BLINK)
                                    "cursorBlink,"
#endif
#if defined(POINTER_BLANK)
                                    "pointerBlank,"
#endif
#if defined(NO_RESOURCES)
                                    "NoResources"
#else
# if defined(USE_XGETDEFAULT)
                                    "XGetDefaults"
# else
                                    ".Xdefaults"
# endif
#endif
                                    "\nUsage: ";                /* Usage */

#define INDENT 18

/*{{{ usage: */
/*----------------------------------------------------------------------*/
static void
rxvt_usage (int type)
{
  unsigned int i, col;

  rxvt_log ("%s%s%s", releasestring, optionsstring, RESNAME);

  switch (type)
    {
      case 0:                   /* brief listing */
        rxvt_log (" [-help] [--help]\n");

        for (col = 1, i = 0; i < optList_size; i++)
          if (optList[i].desc != NULL)
            {
              int             len = 0;

              if (!optList_isBool (i))
                {
                  len = optList_strlen (i);
                  if (len > 0)
                    len++;      /* account for space */
                }
#ifdef DEBUG_STRICT
              assert (optList[i].opt != NULL);
#endif
              len += 4 + strlen (optList[i].opt) + (optList_isBool (i) ? 2: 0);
              col += len;
              if (col > 79)
                {       /* assume regular width */
                  rxvt_log ("\n");
                  col = 1 + len;
                }

              rxvt_log (" [-%s%s", (optList_isBool (i) ? "/+" : ""), optList[i].opt);
              if (optList_strlen (i))
                rxvt_log (" %s]", optList[i].arg);
              else
                rxvt_log ("]");
            }
        break;

      case 1:                   /* full command-line listing */
        rxvt_log (" [options] [-e command args]\n\nwhere options include:\n");

        for (i = 0; i < optList_size; i++)
          if (optList[i].desc != NULL)
            {
#ifdef DEBUG_STRICT
              assert (optList[i].opt != NULL);
#endif
              rxvt_log ("  %s%s %-*s%s%s\n",
                         (optList_isBool (i) ? "-/+" : "-"), optList[i].opt,
                         (INDENT - strlen (optList[i].opt)
                          + (optList_isBool (i) ? 0 : 2)),
                         (optList[i].arg ? optList[i].arg : ""),
                         (optList_isBool (i) ? "turn on/off " : ""),
                         optList[i].desc);
            }
        rxvt_log ("\n  --help to list long-options");
        break;

      case 2:                   /* full resource listing */
        rxvt_log (" [options] [-e command args]\n\n"
                   "where resources (long-options) include:\n");

        for (i = 0; i < optList_size; i++)
          if (optList[i].kw != NULL)
            rxvt_log ("  %s: %*s%s\n",
                    optList[i].kw,
                    (INDENT - strlen (optList[i].kw)), "", /* XXX */
                    (optList_isBool (i) ? "boolean" : optList[i].arg));
#ifdef KEYSYM_RESOURCE
        rxvt_log ("  " "keysym.sym" ": %*s%s\n",
                (INDENT - sizeof ("keysym.sym") + 1), "", /* XXX */
                "keysym");
#endif
        rxvt_log ("\n  -help to list options");
        break;
    }

  rxvt_log ("\n\n");
  rxvt_exit_failure ();
  /* NOTREACHED */
}

/*}}} */

/*{{{ get command-line options before getting resources */
void
rxvt_term::get_options (int argc, const char *const *argv)
{
  int             i, bad_option = 0;
  static const char On[3] = "ON", Off[4] = "OFF";

  for (i = 1; i < argc; i++)
    {
      unsigned int entry, longopt = 0;
      const char *flag, *opt;

      opt = argv[i];
#ifdef DEBUG_RESOURCES
      fprintf (stderr, "argv[%d] = %s: ", i, opt);
#endif
      if (*opt == '-')
        {
          flag = On;
          if (*++opt == '-')
            longopt = *opt++;   /* long option */
        }
      else if (*opt == '+')
        {
          flag = Off;
          if (*++opt == '+')
            longopt = *opt++;   /* long option */
        }
      else
        {
          bad_option = 1;
          rxvt_warn ("\"%s\": malformed option.\n", opt);
          continue;
        }

      if (!strcmp (opt, "help"))
        rxvt_usage (longopt ? 2 : 1);
      if (!strcmp (opt, "h"))
        rxvt_usage (0);

      /* feature: always try to match long-options */
      for (entry = 0; entry < optList_size; entry++)
        if ((optList[entry].kw && !strcmp (opt, optList[entry].kw))
            || (!longopt
                && optList[entry].opt && !strcmp (opt, optList[entry].opt)))
          break;

      if (entry < optList_size)
        {
          if (optList_isReverse (entry))
            flag = flag == On ? Off : On;

          if (optList_strlen (entry))
            {
              /*
               * special cases are handled in main.c:main () to allow
               * X resources to set these values before we settle for
               * default values
               */

              if (optList[entry].doff != -1)
                rs[optList[entry].doff] = flag == On && argv[i+1]
                                          ? argv[++i] : 0;
            }
          else
            {           /* boolean value */
#ifdef DEBUG_RESOURCES
              fprintf (stderr, "boolean (%s,%s) = %s\n",
                      optList[entry].opt, optList[entry].kw, flag);
#endif
              if (flag == On)
                options |= optList[entry].flag;
              else
                options &= ~optList[entry].flag;

              if (optList[entry].doff != -1)
                rs[optList[entry].doff] = flag;
            }
        }
      else
#ifdef KEYSYM_RESOURCE
        /* if (!strncmp (opt, "keysym.", sizeof ("keysym.") - 1)) */
        if (rxvt_Str_match (opt, "keysym."))
          {
            const char *str = argv[++i];

            if (str != NULL)
              parse_keysym (opt + sizeof ("keysym.") - 1, str);
          }
        else
#endif
          {
            bad_option = 1;
            rxvt_warn ("\"%s\": unknown or malformed option.\n", opt);
          }
    }

  if (bad_option)
    rxvt_usage (0);
}

/*}}} */

#ifndef NO_RESOURCES
/*----------------------------------------------------------------------*/

# ifdef KEYSYM_RESOURCE
/*
 * Define key from XrmEnumerateDatabase.
 *   quarks will be something like
 *      "rxvt" "keysym" "0xFF01"
 *   value will be a string
 */
/* ARGSUSED */
int
rxvt_define_key (XrmDatabase *database __attribute__((unused)),
                 XrmBindingList bindings __attribute__((unused)),
                 XrmQuarkList quarks,
                 XrmRepresentation *type __attribute__((unused)),
                 XrmValue *value,
                 XPointer closure __attribute__((unused)))
{
  int last;

  for (last = 0; quarks[last] != NULLQUARK; last++)     /* look for last quark in list */
    ;

  last--;
  GET_R->parse_keysym (XrmQuarkToString (quarks[last]), (char *)value->addr);//D//TODO
  return False;
}

/*
 * look for something like this (XK_Delete)
 * rxvt*keysym.0xFFFF: "\177"
 *
 * arg will be
 *      NULL for ~/.Xdefaults and
 *      non-NULL for command-line options (need to allocate)
 */
#define NEWARGLIM       500     /* `reasonable' size */

struct keysym_vocabulary_t
{
  const char    *name;
  unsigned short len;
  unsigned short value;
};
keysym_vocabulary_t keysym_vocabulary[] =
{
  { "ISOLevel3", 9, Level3Mask    },
  { "AppKeypad", 9, AppKeypadMask },
  { "Control",   7, ControlMask   },
  { "NumLock",   7, NumLockMask   },
  { "Shift",     5, ShiftMask     },
  { "Meta",      4, MetaMask      },
  { "Lock",      4, LockMask      },
  { "Mod1",      4, Mod1Mask      },
  { "Mod2",      4, Mod2Mask      },
  { "Mod3",      4, Mod3Mask      },
  { "Mod4",      4, Mod4Mask      },
  { "Mod5",      4, Mod5Mask      },
  { "I",         1, Level3Mask    },
  { "K",         1, AppKeypadMask },
  { "C",         1, ControlMask   },
  { "N",         1, NumLockMask   },
  { "S",         1, ShiftMask     },
  { "M",         1, MetaMask      },
  { "A",         1, MetaMask      },
  { "L",         1, LockMask      },
  { "1",         1, Mod1Mask      },
  { "2",         1, Mod2Mask      },
  { "3",         1, Mod3Mask      },
  { "4",         1, Mod4Mask      },
  { "5",         1, Mod5Mask      },
};

int
rxvt_term::parse_keysym (const char *str, const char *arg)
{
  int n, sym;
  unsigned int state = 0;
  const char *pmodend = NULL;
  char *newarg = NULL;
  char newargstr[NEWARGLIM];

  if (arg == NULL)
    {
      if ((n = rxvt_Str_match (str, "keysym.")) == 0)
        return 0;

      str += n;         /* skip `keysym.' */
      if ((pmodend = strchr (str, ':')) < str)
        return -1;
    }
  else
    pmodend = str + strlen(str);

  for (--pmodend; str < pmodend; --pmodend)
    if (*pmodend == '-')
      break;

  while (str < pmodend)
    {
      unsigned int i;

      for (i=0; i < sizeof (keysym_vocabulary) / sizeof (keysym_vocabulary_t); ++i)
        {
          if (strncmp (str, keysym_vocabulary [i].name, keysym_vocabulary [i].len) == 0)
            {
              state |= keysym_vocabulary[i].value;
              str += keysym_vocabulary[i].len;
              break;
            }
        }

      if (i >= sizeof (keysym_vocabulary) / sizeof (keysym_vocabulary_t))
        return -1;

      if (*str == '-')
        ++str;
    }

  /* some scanf () have trouble with a 0x prefix */
  if (str[0] == '0' && toupper (str[1]) == 'X')
    {
      str += 2;

      if (arg)
        {
          if (sscanf (str, (strchr (str, ':') ? "%x:" : "%x"), &sym) != 1)
            return -1;
        }
      else
        {
          if (sscanf (str, "%x:", &sym) != 1)
            return -1;

          /* cue to ':', it's there since sscanf () worked */
          strncpy (newargstr, strchr (str, ':') + 1, NEWARGLIM - 1);
          newargstr[NEWARGLIM - 1] = '\0';
          newarg = newargstr;
        }
    }
  else
    {
      /*
       * convert keysym name to keysym number
       */
      strncpy (newargstr, str, NEWARGLIM - 1);
      newargstr[NEWARGLIM - 1] = '\0';

      if (arg == NULL)
        {
          if ((newarg = strchr (newargstr, ':')) == NULL)
            return -1;

          *newarg++ = '\0';     /* terminate keysym name */
        }

      if ((sym = XStringToKeysym (newargstr)) == None)
        return -1;
    }

  if (newarg == NULL)
    {
      strncpy (newargstr, arg, NEWARGLIM - 1);
      newargstr[NEWARGLIM - 1] = '\0';
      newarg = newargstr;
    }

  rxvt_Str_trim (newarg);
  if (*newarg == '\0' || (n = rxvt_Str_escaped (newarg)) == 0)
    return -1;

  keyboard->register_user_translation (sym, state, newarg);
  return 1;
}

# endif                         /* KEYSYM_RESOURCE */

# ifndef USE_XGETDEFAULT
/*{{{ rxvt_get_xdefaults () */
/*
 * the matching algorithm used for memory-save fake resources
 */
void
rxvt_term::get_xdefaults (FILE *stream, const char *name)
{
  unsigned int len;
  char *str, buffer[256];

  if (stream == NULL)
    return;

  len = strlen (name);
  while ((str = fgets (buffer, sizeof (buffer), stream)) != NULL)
    {
      unsigned int entry, n;

      while (*str && isspace (*str))
        str++;          /* leading whitespace */

      if ((str[len] != '*' && str[len] != '.')
          || (len && strncmp (str, name, len)))
        continue;
      str += (len + 1); /* skip `name*' or `name.' */

# ifdef KEYSYM_RESOURCE
      if (!parse_keysym (str, NULL))
# endif                         /* KEYSYM_RESOURCE */
        for (entry = 0; entry < optList_size; entry++)
          {
            const char *kw = optList[entry].kw;

            if (kw == NULL)
              continue;

            n = strlen (kw);
            if (str[n] == ':' && rxvt_Str_match (str, kw))
              {
                /* skip `keyword:' */
                str += n + 1;
                rxvt_Str_trim (str);
                n = strlen (str);

                if (n && rs[optList[entry].doff] == NULL)
                  {
                    /* not already set */
                    int s;
                    char *p = 0;

                    for (int o = 0;;)
                      {
                        p = (char *)rxvt_realloc (p, o + n + 1);
                        memcpy (p + o, str, n);
                        o += n;
                        p[o] = 0;

                        if (o == 0 || p[o - 1] != '\\') // continuation line
                          break;

                        o--; // eat "\"

                        if ((str = fgets (buffer, sizeof (buffer), stream)) == NULL)
                          break;

                        rxvt_Str_trim (str);
                        n = strlen (str);
                      }

                    rs[optList[entry].doff] = p;
                    allocated.push_back (p);

                    if (optList_isBool (entry))
                      {
                        s = strcasecmp (str, "true") == 0
                            || strcasecmp (str, "yes") == 0
                            || strcasecmp (str, "on") == 0
                            || strcmp (str, "1") == 0;

                        if (optList_isReverse (entry))
                          s = !s;

                        if (s)
                          options |= optList[entry].flag;
                        else
                          options &= ~optList[entry].flag;
                      }
                  }

                break;
              }
          }
    }

  rewind (stream);
}

/*}}} */
# endif                         /* ! USE_XGETDEFAULT */
#endif                          /* NO_RESOURCES */

/*{{{ read the resources files */
/*
 * using XGetDefault () or the hand-rolled replacement
 */
/* ARGSUSED */
void
rxvt_term::extract_resources ()
{
  dDisp;

#ifndef NO_RESOURCES

  char *homedir = (char *)getenv ("HOME");
  char fname[1024];

# if defined XAPPLOADDIR
#  if defined(HAVE_XSETLOCALE) || defined(HAVE_SETLOCALE)
  /* Compute the path of the possibly available localized Rxvt file */
  char localepath[1024];

  if (locale)
    snprintf (localepath, sizeof (localepath), XAPPLOADDIRLOCALE "/" RESCLASS, locale);
  else
    localepath[0] = 0;
#  endif
# endif

# ifdef USE_XGETDEFAULT
  /*
   * get resources using the X library function
   */
  int entry;

#  ifdef XrmEnumOneLevel
  char *displayResource, *xe;
  XrmName name_prefix[3];
  XrmClass class_prefix[3];
  XrmDatabase database, rdb1;

  XrmInitialize ();
  database = NULL;

  // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20

  // 6. System wide per application default file.
  /* Add in Rxvt file */
#   if defined(HAVE_XSETLOCALE) || defined(HAVE_SETLOCALE)
  if (*localepath
      && ((rdb1 = XrmGetFileDatabase (localepath))
          || (rdb1 = XrmGetFileDatabase (XAPPLOADDIR "/" RESCLASS))))
#   endif
    XrmMergeDatabases (rdb1, &database);

  /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
  if ((xe = (char *)getenv ("XAPPLRESDIR")))
    {
      snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS);

      if ((rdb1 = XrmGetFileDatabase (fname)))
        XrmMergeDatabases (rdb1, &database);
    }

  // 5. User's per application default file.
  // none

  // 4. User's defaults file.
  /* Get any Xserver defaults */
  displayResource = XResourceManagerString (disp);
  if (displayResource != NULL)
    {
      if ((rdb1 = XrmGetStringDatabase (displayResource)))
        XrmMergeDatabases (rdb1, &database);
    }
  else if (homedir)
    {
      snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);

      if ((rdb1 = XrmGetFileDatabase (fname)))
        XrmMergeDatabases (rdb1, &database);
    }

  /* Get screen specific resources */
  displayResource = XScreenResourceString (ScreenOfDisplay (disp, display->screen));
  if (displayResource != NULL)
    {
      if ((rdb1 = XrmGetStringDatabase (displayResource)))
        /* Merge with screen-independent resources */
        XrmMergeDatabases (rdb1, &database);

      XFree (displayResource);
    }

  // 3. User's per host defaults file
  /* Add in XENVIRONMENT file */
  if ((xe = (char *)getenv ("XENVIRONMENT"))
      && (rdb1 = XrmGetFileDatabase (xe)))
    XrmMergeDatabases (rdb1, &database);
  else if (homedir)
    {
      struct utsname un;

      if (!uname (&un))
        {
          snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename);

          if ((rdb1 = XrmGetFileDatabase (fname)))
            XrmMergeDatabases (rdb1, &database);
        }
    }

  XrmSetDatabase (disp, database);
#  endif

  /*
   * Query resources for options that affect us
   */
  for (entry = 0; entry < optList_size; entry++)
    {
      int s;
      char *p, *p0;
      const char *kw = optList[entry].kw;

      if (kw == NULL || rs[optList[entry].doff] != NULL)
        continue;               /* previously set */

      p = XGetDefault (disp, rs[Rs_name], kw);
      p0 = XGetDefault (disp, "!INVALIDPROGRAMMENAMEDONTMATCH!", kw);
      if (p == NULL || (p0 && strcmp (p, p0) == 0))
        {
          p = XGetDefault (disp, RESCLASS, kw);
#ifdef RESFALLBACK
          if (p == NULL || (p0 && strcmp (p, p0) == 0))
            p = XGetDefault (disp, RESFALLBACK, kw);
#endif
        }

      if (p == NULL && p0)
        p = p0;

      if (p)
        {
          rs[optList[entry].doff] = p;

          if (optList_isBool (entry))
            {
              s = strcasecmp (p, "TRUE") == 0
                  || strcasecmp (p, "YES") == 0
                  || strcasecmp (p, "ON") == 0
                  || strcasecmp (p, "1") == 0;

              if (optList_isReverse (entry))
                s = !s;

              if (s)
                options |= optList[entry].flag;
              else
                options &= ~optList[entry].flag;
            }
        }
    }

  /*
   * [R5 or later]: enumerate the resource database
   */
#  ifdef KEYSYM_RESOURCE
  name_prefix[0] = XrmStringToName (rs[Rs_name]);
  name_prefix[1] = XrmStringToName ("keysym");
  name_prefix[2] = NULLQUARK;
  class_prefix[0] = XrmStringToName (RESCLASS);
  class_prefix[1] = XrmStringToName ("Keysym");
  class_prefix[2] = NULLQUARK;
  /* XXX: Need to check sizeof (rxvt_t) == sizeof (XPointer) */
  XrmEnumerateDatabase (XrmGetDatabase (disp), name_prefix, class_prefix,
                        XrmEnumOneLevel, rxvt_define_key, NULL);
#   ifdef RESFALLBACK
  name_prefix[0] = XrmStringToName (RESFALLBACK);
  name_prefix[1] = XrmStringToName ("keysym");
  class_prefix[0] = XrmStringToName (RESFALLBACK);
  class_prefix[1] = XrmStringToName ("Keysym");
  /* XXX: Need to check sizeof (rxvt_t) == sizeof (XPointer) */
  XrmEnumerateDatabase (XrmGetDatabase (disp), name_prefix, class_prefix,
                        XrmEnumOneLevel, rxvt_define_key, NULL);
#   endif
#  endif

# else                          /* USE_XGETDEFAULT */
  /* get resources the hard way, but save lots of memory */
  FILE *fd = NULL;

  if (homedir)
    {
      static const char *const xnames[2] = { ".Xdefaults", ".Xresources" };

      for (int i = 0; i < (sizeof (xnames) / sizeof (xnames [0])); i++)
        {
          snprintf (fname, sizeof (fname), "%s/%s", homedir, xnames [i]);

          if ((fd = fopen (fname, "r")) != NULL)
            break;
        }
    }
  /*
  * The normal order to match resources is the following:
  * @ global resources (partial match, ~/.Xdefaults)
  * @ application file resources (XAPPLOADDIR/Rxvt)
  * @ class resources (~/.Xdefaults)
  * @ private resources (~/.Xdefaults)
  *
  * However, for the hand-rolled resources, the matching algorithm
  * checks if a resource string value has already been allocated
  * and won't overwrite it with (in this case) a less specific
  * resource value.
  *
  * This avoids multiple allocation.  Also, when we've called this
  * routine command-line string options have already been applied so we
  * needn't to allocate for those resources.
  *
  * So, search in resources from most to least specific.
  *
  * Also, use a special sub-class so that we can use either or both of
  * "XTerm" and "Rxvt" as class names.
  */

  get_xdefaults (fd, rs[Rs_name]);
  get_xdefaults (fd, RESCLASS);
#  ifdef RESFALLBACK
  get_xdefaults (fd, RESFALLBACK);
#  endif

#  if defined(XAPPLOADDIR) && defined(USE_XAPPLOADDIR)
  {
    FILE *ad = NULL;

#   if defined(HAVE_XSETLOCALE) || defined(HAVE_SETLOCALE)
    if (!*localepath || (ad = fopen (localepath, "r")) == NULL)
#   endif
      ad = fopen (XAPPLOADDIR "/" RESCLASS, "r");
    if (ad != NULL)
      {
        get_xdefaults (ad, RESCLASS);
        get_xdefaults (ad, "");
        fclose (ad);
      }
  }
#  endif                        /* XAPPLOADDIR */

  get_xdefaults (fd, "");       /* partial match */
  if (fd != NULL)
    fclose (fd);
# endif                         /* USE_XGETDEFAULT */

#endif                          /* NO_RESOURCES */
}

/*}}} */
/*----------------------- end-of-file (C source) -----------------------*/
Revision:	1.62
Committed:	Thu Dec 22 16:44:10 2005 UTC (20 years, 9 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-6_0, rel-6_1
Changes since 1.61:	+1 -0 lines
Log Message:	* empty log message *