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menu.c

/* $XConsortium: menu.c,v 1.60 91/06/25 19:49:28 gildea Exp $ */
/*
Copyright 1989 Massachusetts Institute of Technology

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation, and that the name of M.I.T. not be used in advertising or
publicity pertaining to distribution of the software without specific,
written prior permission.  M.I.T. makes no representations about the
suitability of this software for any purpose.  It is provided "as is"
without express or implied warranty.
*/

#include "ptyx.h"
#include "data.h"
#include "menu.h"
#include <X11/StringDefs.h>
#include <X11/Shell.h>
#include <X11/Xmu/CharSet.h>
#include <X11/Xaw/SimpleMenu.h>
#include <X11/Xaw/SmeBSB.h>
#include <X11/Xaw/SmeLine.h>
#include <stdio.h>
#include <signal.h>

extern void FindFontSelection();
extern void ScrollBarOn();
extern void ScrollBarOff();
extern void Bell();
extern void Redraw();

Arg menuArgs[2] = {{ XtNleftBitmap, (XtArgVal) 0 },
               { XtNsensitive, (XtArgVal) 0 }};

extern void HideCursor();
extern void FlushScroll();
extern void ReverseVideo();
extern void ScrollBarDrawThumb();

void do_hangup();

static void do_securekbd(), do_allowsends(), do_visualbell(),
#ifdef ALLOWLOGFILEONOFF
      do_logging(),
#endif
    do_redraw(), do_suspend(), do_continue(), do_interrupt(), 
    do_terminate(), do_kill(), do_quit(), do_scrollbar(), do_jumpscroll(),
    do_reversevideo(), do_autowrap(), do_reversewrap(), do_autolinefeed(),
    do_appcursor(), do_appkeypad(), do_scrollkey(), do_scrollttyoutput(),
    do_allow132(), do_cursesemul(), do_marginbell(),
    do_softreset(), do_hardreset(), do_clearsavedlines(),
    do_vtfont();


/*
 * The order entries MUST match the values given in menu.h
 */
MenuEntry mainMenuEntries[] = {
    { "securekbd",      do_securekbd, NULL },         /*  0 */
    { "allowsends",     do_allowsends, NULL },        /*  1 */
#ifdef ALLOWLOGFILEONOFF
    { "logging",  do_logging, NULL },           /*  2 */
#endif
    { "redraw",         do_redraw, NULL },            /*  3 */
    { "line1",          NULL, NULL },                 /*  4 */
    { "suspend",  do_suspend, NULL },           /*  5 */
    { "continue", do_continue, NULL },          /*  6 */
    { "interrupt",      do_interrupt, NULL },         /*  7 */
    { "hangup",         do_hangup, NULL },            /*  8 */
    { "terminate",      do_terminate, NULL },         /*  9 */
    { "kill",           do_kill, NULL },        /* 10 */
    { "line2",          NULL, NULL },                 /* 11 */
    { "quit",           do_quit, NULL }};       /* 12 */

MenuEntry vtMenuEntries[] = {
    { "scrollbar",      do_scrollbar, NULL },         /*  0 */
    { "jumpscroll",     do_jumpscroll, NULL },        /*  1 */
    { "reversevideo",   do_reversevideo, NULL },      /*  2 */
    { "autowrap", do_autowrap, NULL },          /*  3 */
    { "reversewrap",    do_reversewrap, NULL },       /*  4 */
    { "autolinefeed",   do_autolinefeed, NULL },      /*  5 */
    { "appcursor",      do_appcursor, NULL },         /*  6 */
    { "appkeypad",      do_appkeypad, NULL },         /*  7 */
    { "scrollkey",      do_scrollkey, NULL },         /*  8 */
    { "scrollttyoutput",do_scrollttyoutput, NULL },   /*  9 */
    { "allow132", do_allow132, NULL },          /* 10 */
    { "cursesemul",     do_cursesemul, NULL },        /* 11 */
    { "visualbell",     do_visualbell, NULL },        /* 12 */
    { "marginbell",     do_marginbell, NULL },        /* 13 */
    { "line1",          NULL, NULL },                 /* 15 */
    { "softreset",      do_softreset, NULL },         /* 16 */
    { "hardreset",      do_hardreset, NULL },         /* 17 */
    { "clearsavedlines",do_clearsavedlines, NULL }};  /* 18 */

MenuEntry fontMenuEntries[] = {
    { "fontdefault",    do_vtfont, NULL },            /*  0 */
    { "font1",          do_vtfont, NULL },            /*  1 */
    { "font2",          do_vtfont, NULL },            /*  2 */
    { "font3",          do_vtfont, NULL },            /*  3 */
    { "font4",          do_vtfont, NULL },            /*  4 */
    { "font5",          do_vtfont, NULL },            /*  5 */
    { "font6",          do_vtfont, NULL },            /*  6 */
    { "fontescape",     do_vtfont, NULL },            /*  7 */
    { "fontsel",  do_vtfont, NULL }};           /*  8 */
    /* this should match NMENUFONTS in ptyx.h */

static Widget create_menu();
extern Widget toplevel;


/*
 * we really want to do these dynamically
 */
#define check_width 9
#define check_height 8
static unsigned char check_bits[] = {
   0x00, 0x01, 0x80, 0x01, 0xc0, 0x00, 0x60, 0x00,
   0x31, 0x00, 0x1b, 0x00, 0x0e, 0x00, 0x04, 0x00
};


/*
 * public interfaces
 */

/* ARGSUSED */
static Bool domenu (w, event, params, param_count)
    Widget w;
    XEvent *event;              /* unused */
    String *params;             /* mainMenu, vtMenu */
    Cardinal *param_count;      /* 0 or 1 */
{
    TScreen *screen = &term->screen;

    if (*param_count != 1) {
      XBell (XtDisplay(w), 0);
      return False;
    }

    switch (params[0][0]) {
      case 'm':
      if (!screen->mainMenu) {
          screen->mainMenu = create_menu (term, toplevel, "mainMenu",
                                  mainMenuEntries,
                                  XtNumber(mainMenuEntries));
          update_securekbd();
          update_allowsends();
#ifdef ALLOWLOGFILEONOFF
          update_logging();
#endif
#ifndef SIGTSTP
          set_sensitivity (screen->mainMenu,
                       mainMenuEntries[mainMenu_suspend].widget, FALSE);
#endif
#ifndef SIGCONT
          set_sensitivity (screen->mainMenu, 
                       mainMenuEntries[mainMenu_continue].widget, FALSE);
#endif
      }
      break;

      case 'v':
      if (!screen->vtMenu) {
          screen->vtMenu = create_menu (term, toplevel, "vtMenu",
                                vtMenuEntries,
                                XtNumber(vtMenuEntries));
          /* and turn off the alternate screen entry */
          set_altscreen_sensitivity (FALSE);
          update_scrollbar();
          update_jumpscroll();
          update_reversevideo();
          update_autowrap();
          update_reversewrap();
          update_autolinefeed();
          update_appcursor();
          update_appkeypad();
          update_scrollkey();
          update_scrollttyoutput();
          update_allow132();
          update_cursesemul();
          update_visualbell();
          update_marginbell();
      }
      break;

      case 'f':
      if (!screen->fontMenu) {
          screen->fontMenu = create_menu (term, toplevel, "fontMenu",
                                  fontMenuEntries,
                                  NMENUFONTS);  
          set_menu_font (True);
          set_sensitivity (screen->fontMenu,
                       fontMenuEntries[fontMenu_fontescape].widget,
                       (screen->menu_font_names[fontMenu_fontescape]
                        ? TRUE : FALSE));
      }
      FindFontSelection (NULL, True);
      set_sensitivity (screen->fontMenu,
                   fontMenuEntries[fontMenu_fontsel].widget,
                   (screen->menu_font_names[fontMenu_fontsel]
                    ? TRUE : FALSE));
      break;

      case 't':
      break;

      default:
      XBell (XtDisplay(w), 0);
      return False;
    }

    return True;
}

void HandleCreateMenu (w, event, params, param_count)
    Widget w;
    XEvent *event;              /* unused */
    String *params;             /* mainMenu, vtMenu */
    Cardinal *param_count;      /* 0 or 1 */
{
    (void) domenu (w, event, params, param_count);
}

void HandlePopupMenu (w, event, params, param_count)
    Widget w;
    XEvent *event;              /* unused */
    String *params;             /* mainMenu, vtMenu */
    Cardinal *param_count;      /* 0 or 1 */
{
    if (domenu (w, event, params, param_count)) {
      XtCallActionProc (w, "XawPositionSimpleMenu", event, params, 1);
      XtCallActionProc (w, "MenuPopup", event, params, 1);
    }
}


/*
 * private interfaces - keep out!
 */

/*
 * create_menu - create a popup shell and stuff the menu into it.
 */

static Widget create_menu (xtw, toplevelw, name, entries, nentries)
    XtermWidget xtw;
    Widget toplevelw;
    char *name;
    struct _MenuEntry *entries;
    int nentries;
{
    Widget m;
    TScreen *screen = &xtw->screen;
    static XtCallbackRec cb[2] = { { NULL, NULL }, { NULL, NULL }};
    static Arg arg = { XtNcallback, (XtArgVal) cb };

    if (screen->menu_item_bitmap == None) {
      screen->menu_item_bitmap =
        XCreateBitmapFromData (XtDisplay(xtw),
                         RootWindowOfScreen(XtScreen(xtw)),
                         (char *)check_bits, check_width, check_height);
    }

    m = XtCreatePopupShell (name, simpleMenuWidgetClass, toplevelw, NULL, 0);

    for (; nentries > 0; nentries--, entries++) {
      cb[0].callback = (XtCallbackProc) entries->function;
      cb[0].closure = (caddr_t) entries->name;
      entries->widget = XtCreateManagedWidget (entries->name, 
                                     (entries->function ?
                                      smeBSBObjectClass :
                                      smeLineObjectClass), m,
                                     &arg, (Cardinal) 1);
    }

    /* do not realize at this point */
    return m;
}

/* ARGSUSED */
static void handle_send_signal (gw, sig)
    Widget gw;
    int sig;
{
    register TScreen *screen = &term->screen;

    if (screen->pid > 1) kill_process_group (screen->pid, sig);
}


/*
 * action routines
 */

/* ARGSUSED */
void DoSecureKeyboard (time)
    Time time;
{
    do_securekbd (term->screen.mainMenu, NULL, NULL);
}

static void do_securekbd (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;
    Time time = CurrentTime;        /* XXX - wrong */

    if (screen->grabbedKbd) {
      XUngrabKeyboard (screen->display, time);
      ReverseVideo (term);
      screen->grabbedKbd = FALSE;
    } else {
      if (XGrabKeyboard (screen->display, term->core.parent->core.window,
                     True, GrabModeAsync, GrabModeAsync, time)
          != GrabSuccess) {
          XBell (screen->display, 100);
      } else {
          ReverseVideo (term);
          screen->grabbedKbd = TRUE;
      }
    }
    update_securekbd();
}


static void do_allowsends (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;

    screen->allowSendEvents = !screen->allowSendEvents;
    update_allowsends ();
}

static void do_visualbell (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;

    screen->visualbell = !screen->visualbell;
    update_visualbell();
}

#ifdef ALLOWLOGFILEONOFF
static void do_logging (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;

    if (screen->logging) {
      CloseLog (screen);
    } else {
      StartLog (screen);
    }
    /* update_logging done by CloseLog and StartLog */
}
#endif


static void do_redraw (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    Redraw ();
}


/*
 * The following cases use the pid instead of the process group so that we
 * don't get hosed by programs that change their process group
 */


/* ARGSUSED */
static void do_suspend (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
#ifdef SIGTSTP
    handle_send_signal (gw, SIGTSTP);
#endif
}

/* ARGSUSED */
static void do_continue (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
#ifdef SIGCONT
    handle_send_signal (gw, SIGCONT);
#endif
}

/* ARGSUSED */
static void do_interrupt (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    handle_send_signal (gw, SIGINT);
}

/* ARGSUSED */
void do_hangup (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    handle_send_signal (gw, SIGHUP);
}

/* ARGSUSED */
static void do_terminate (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    handle_send_signal (gw, SIGTERM);
}

/* ARGSUSED */
static void do_kill (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    handle_send_signal (gw, SIGKILL);
}

static void do_quit (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    Cleanup (0);
}



/*
 * vt menu callbacks
 */

static void do_scrollbar (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;

    if (screen->scrollbar) {
      ScrollBarOff (screen);
    } else {
      ScrollBarOn (term, FALSE, FALSE);
    }
    update_scrollbar();
}


static void do_jumpscroll (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;

    term->flags ^= SMOOTHSCROLL;
    if (term->flags & SMOOTHSCROLL) {
      screen->jumpscroll = FALSE;
      if (screen->scroll_amt) FlushScroll(screen);
    } else {
      screen->jumpscroll = TRUE;
    }
    update_jumpscroll();
}


static void do_reversevideo (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    term->flags ^= REVERSE_VIDEO;
    ReverseVideo (term);
    /* update_reversevideo done in ReverseVideo */
}


static void do_autowrap (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    term->flags ^= WRAPAROUND;
    update_autowrap();
}


static void do_reversewrap (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    term->flags ^= REVERSEWRAP;
    update_reversewrap();
}


static void do_autolinefeed (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    term->flags ^= LINEFEED;
    update_autolinefeed();
}


static void do_appcursor (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    term->keyboard.flags ^= CURSOR_APL;
    update_appcursor();
}


static void do_appkeypad (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    term->keyboard.flags ^= KYPD_APL;
    update_appkeypad();
}


static void do_scrollkey (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;

    screen->scrollkey = !screen->scrollkey;
    update_scrollkey();
}


static void do_scrollttyoutput (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;

    screen->scrollttyoutput = !screen->scrollttyoutput;
    update_scrollttyoutput();
}


static void do_allow132 (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;

    screen->c132 = !screen->c132;
    update_allow132();
}


static void do_cursesemul (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;

    screen->curses = !screen->curses;
    update_cursesemul();
}


static void do_marginbell (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;

    if (!(screen->marginbell = !screen->marginbell)) screen->bellarmed = -1;
    update_marginbell();
}


static void do_softreset (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    VTReset (FALSE);
}


static void do_hardreset (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    VTReset (TRUE);
}


static void do_clearsavedlines (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    register TScreen *screen = &term->screen;

    screen->savedlines = 0;
    ScrollBarDrawThumb(screen->scrollWidget);
    VTReset (TRUE); 
}


/*
 * vtfont menu
 */

static void do_vtfont (gw, closure, data)
    Widget gw;
    caddr_t closure, data;
{
    char *entryname = (char *) closure;
    int i;

    for (i = 0; i < NMENUFONTS; i++) {
      if (strcmp (entryname, fontMenuEntries[i].name) == 0) {
          SetVTFont (i, True, NULL, NULL);
          return;
      }
    }
    Bell();
}


/*
 * public handler routines
 */

static void handle_toggle (proc, var, params, nparams, w, closure, data)
    void (*proc)();
    int var;
    String *params;
    Cardinal nparams;
    Widget w;
    caddr_t closure, data;
{
    int dir = -2;

    switch (nparams) {
      case 0:
      dir = -1;
      break;
      case 1:
      if (XmuCompareISOLatin1 (params[0], "on") == 0) dir = 1;
      else if (XmuCompareISOLatin1 (params[0], "off") == 0) dir = 0;
      else if (XmuCompareISOLatin1 (params[0], "toggle") == 0) dir = -1;
      break;
    }

    switch (dir) {
      case -2:
      Bell();
      break;

      case -1:
      (*proc) (w, closure, data);
      break;

      case 0:
      if (var) (*proc) (w, closure, data);
      else Bell();
      break;

      case 1:
      if (!var) (*proc) (w, closure, data);
      else Bell();
      break;
    }
    return;
}

void HandleAllowSends(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_allowsends, (int) term->screen.allowSendEvents,
               params, *param_count, w, NULL, NULL);
}

void HandleSetVisualBell(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_visualbell, (int) term->screen.visualbell,
               params, *param_count, w, NULL, NULL);
}

#ifdef ALLOWLOGFILEONOFF
void HandleLogging(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_logging, (int) term->screen.logging,
               params, *param_count, w, NULL, NULL);
}
#endif

/* ARGSUSED */
void HandleRedraw(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    do_redraw(w, NULL, NULL);
}

/* ARGSUSED */
void HandleSendSignal(w, event, params, param_count)
    Widget w;
    XEvent *event;            /* unused */
    String *params;
    Cardinal *param_count;
{
    static struct sigtab {
      char *name;
      int sig;
    } signals[] = {
#ifdef SIGTSTP
      { "suspend",      SIGTSTP },
      { "tstp",   SIGTSTP },
#endif
#ifdef SIGCONT
      { "cont",   SIGCONT },
#endif
      { "int",    SIGINT },
      { "hup",    SIGHUP },
      { "quit",   SIGQUIT },
      { "alrm",   SIGALRM },
      { "alarm",  SIGALRM },
      { "term",   SIGTERM },
      { "kill",   SIGKILL },
      { NULL, 0 },
    };

    if (*param_count == 1) {
      struct sigtab *st;

      for (st = signals; st->name; st++) {
          if (XmuCompareISOLatin1 (st->name, params[0]) == 0) {
            handle_send_signal (w, st->sig);
            return;
          }
      }
      /* one could allow numeric values, but that would be a security hole */
    }

    Bell();
}

/* ARGSUSED */
void HandleQuit(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    do_quit(w, NULL, NULL);
}

void HandleScrollbar(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_scrollbar, (int) term->screen.scrollbar,
               params, *param_count, w, NULL, NULL);
}

void HandleJumpscroll(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_jumpscroll, (int) term->screen.jumpscroll,
               params, *param_count, w, NULL, NULL);
}

void HandleReverseVideo(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_reversevideo, (int) (term->flags & REVERSE_VIDEO),
               params, *param_count, w, NULL, NULL);
}

void HandleAutoWrap(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_autowrap, (int) (term->flags & WRAPAROUND),
               params, *param_count, w, NULL, NULL);
}

void HandleReverseWrap(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_reversewrap, (int) (term->flags & REVERSEWRAP),
               params, *param_count, w, NULL, NULL);
}

void HandleAutoLineFeed(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_autolinefeed, (int) (term->flags & LINEFEED),
               params, *param_count, w, NULL, NULL);
}

void HandleAppCursor(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_appcursor, (int) (term->keyboard.flags & CURSOR_APL),
               params, *param_count, w, NULL, NULL);
}

void HandleAppKeypad(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_appkeypad, (int) (term->keyboard.flags & KYPD_APL),
               params, *param_count, w, NULL, NULL);
}

void HandleScrollKey(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_scrollkey, (int) term->screen.scrollkey,
               params, *param_count, w, NULL, NULL);
}

void HandleScrollTtyOutput(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_scrollttyoutput, (int) term->screen.scrollttyoutput,
               params, *param_count, w, NULL, NULL);
}

void HandleAllow132(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_allow132, (int) term->screen.c132,
               params, *param_count, w, NULL, NULL);
}

void HandleCursesEmul(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_cursesemul, (int) term->screen.curses,
               params, *param_count, w, NULL, NULL);
}

void HandleMarginBell(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    handle_toggle (do_marginbell, (int) term->screen.marginbell,
               params, *param_count, w, NULL, NULL);
}

/* ARGSUSED */
void HandleSoftReset(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    do_softreset(w, NULL, NULL);
}

/* ARGSUSED */
void HandleHardReset(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    do_hardreset(w, NULL, NULL);
}

/* ARGSUSED */
void HandleClearSavedLines(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    do_clearsavedlines(w, NULL, NULL);
}

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