--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmu.c	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,563 @@
+/* This file contains compatibility routines for systems without Xmu.
+ * You would be better served by installing Xmu on your machine or
+ * yelling at your vendor to ship it.
+ */
+
+/* XEmacs changes: rindex -> strrchr */
+
+/* Synched up with: Not in FSF. */
+
+#include <config.h>
+
+#ifndef HAVE_XMU
+/*
+ * Copyright 1989 Massachusetts Institute of Technology
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, 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.
+ *
+ * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <X11/cursorfont.h>
+#include <X11/Xos.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Intrinsic.h>
+
+/* for XmuCopyISOLatin1Lowered */
+#define XK_LATIN1
+#include <X11/keysymdef.h>
+#undef XK_LATIN1
+
+#if (XtSpecificationRelease >= 5)
+/*
+ * Don't know why, but this works with X11R5, not X11R4.
+ * Anyway, _XExtension is defined in Xlib.h in X11R4, so we do not need
+ * Xlibint in that case...
+ */
+#include <X11/Xlibint.h>
+#endif
+#include <X11/Xproto.h>
+#include <stdio.h>
+#include <ctype.h>
+
+
+int XmuCursorNameToIndex (const char *name)
+{
+    static const struct _CursorName {
+	const char	*name;
+	unsigned int	shape;
+    } cursor_names[] = {
+			{"x_cursor",		XC_X_cursor},
+			{"arrow",		XC_arrow},
+			{"based_arrow_down",	XC_based_arrow_down},
+			{"based_arrow_up",	XC_based_arrow_up},
+			{"boat",		XC_boat},
+			{"bogosity",		XC_bogosity},
+			{"bottom_left_corner",	XC_bottom_left_corner},
+			{"bottom_right_corner",	XC_bottom_right_corner},
+			{"bottom_side",		XC_bottom_side},
+			{"bottom_tee",		XC_bottom_tee},
+			{"box_spiral",		XC_box_spiral},
+			{"center_ptr",		XC_center_ptr},
+			{"circle",		XC_circle},
+			{"clock",		XC_clock},
+			{"coffee_mug",		XC_coffee_mug},
+			{"cross",		XC_cross},
+			{"cross_reverse",	XC_cross_reverse},
+			{"crosshair",		XC_crosshair},
+			{"diamond_cross",	XC_diamond_cross},
+			{"dot",			XC_dot},
+			{"dotbox",		XC_dotbox},
+			{"double_arrow",	XC_double_arrow},
+			{"draft_large",		XC_draft_large},
+			{"draft_small",		XC_draft_small},
+			{"draped_box",		XC_draped_box},
+			{"exchange",		XC_exchange},
+			{"fleur",		XC_fleur},
+			{"gobbler",		XC_gobbler},
+			{"gumby",		XC_gumby},
+			{"hand1",		XC_hand1},
+			{"hand2",		XC_hand2},
+			{"heart",		XC_heart},
+			{"icon",		XC_icon},
+			{"iron_cross",		XC_iron_cross},
+			{"left_ptr",		XC_left_ptr},
+			{"left_side",		XC_left_side},
+			{"left_tee",		XC_left_tee},
+			{"leftbutton",		XC_leftbutton},
+			{"ll_angle",		XC_ll_angle},
+			{"lr_angle",		XC_lr_angle},
+			{"man",			XC_man},
+			{"middlebutton",	XC_middlebutton},
+			{"mouse",		XC_mouse},
+			{"pencil",		XC_pencil},
+			{"pirate",		XC_pirate},
+			{"plus",		XC_plus},
+			{"question_arrow",	XC_question_arrow},
+			{"right_ptr",		XC_right_ptr},
+			{"right_side",		XC_right_side},
+			{"right_tee",		XC_right_tee},
+			{"rightbutton",		XC_rightbutton},
+			{"rtl_logo",		XC_rtl_logo},
+			{"sailboat",		XC_sailboat},
+			{"sb_down_arrow",	XC_sb_down_arrow},
+			{"sb_h_double_arrow",	XC_sb_h_double_arrow},
+			{"sb_left_arrow",	XC_sb_left_arrow},
+			{"sb_right_arrow",	XC_sb_right_arrow},
+			{"sb_up_arrow",		XC_sb_up_arrow},
+			{"sb_v_double_arrow",	XC_sb_v_double_arrow},
+			{"shuttle",		XC_shuttle},
+			{"sizing",		XC_sizing},
+			{"spider",		XC_spider},
+			{"spraycan",		XC_spraycan},
+			{"star",		XC_star},
+			{"target",		XC_target},
+			{"tcross",		XC_tcross},
+			{"top_left_arrow",	XC_top_left_arrow},
+			{"top_left_corner",	XC_top_left_corner},
+			{"top_right_corner",	XC_top_right_corner},
+			{"top_side",		XC_top_side},
+			{"top_tee",		XC_top_tee},
+			{"trek",		XC_trek},
+			{"ul_angle",		XC_ul_angle},
+			{"umbrella",		XC_umbrella},
+			{"ur_angle",		XC_ur_angle},
+			{"watch",		XC_watch},
+			{"xterm",		XC_xterm},
+    };
+    const struct _CursorName *table;
+    int i;
+    char tmp[40];
+    
+    if (strlen (name) >= sizeof tmp) return -1;
+    for (i=0; i<strlen(name); i++) 
+        if (isupper((unsigned char) name[i]))
+            tmp[i] = tolower((unsigned char) name[i]);
+        else
+            tmp[i] = name[i];
+    tmp[i] = 0;
+
+    for (i=0, table=cursor_names; i < XtNumber(cursor_names); i++, table++ ) {
+	if (strcmp(tmp, table->name) == 0) return table->shape;
+    }
+
+    return -1;
+}
+
+
+/*
+ * Based on an optimized version provided by Jim Becker, Auguest 5, 1988.
+ */
+
+
+#define MAX_SIZE 255
+
+/* shared data for the image read/parse logic */
+static short hexTable[256];		/* conversion value */
+static Bool initialized = False;	/* easier to fill in at run time */
+
+
+/*
+ *	Table index for the hex values. Initialized once, first time.
+ *	Used for translation value or delimiter significance lookup.
+ */
+static void initHexTable()
+{
+    /*
+     * We build the table at run time for several reasons:
+     *
+     *     1.  portable to non-ASCII machines.
+     *     2.  still reentrant since we set the init flag after setting table.
+     *     3.  easier to extend.
+     *     4.  less prone to bugs.
+     */
+    hexTable['0'] = 0;	hexTable['1'] = 1;
+    hexTable['2'] = 2;	hexTable['3'] = 3;
+    hexTable['4'] = 4;	hexTable['5'] = 5;
+    hexTable['6'] = 6;	hexTable['7'] = 7;
+    hexTable['8'] = 8;	hexTable['9'] = 9;
+    hexTable['A'] = 10;	hexTable['B'] = 11;
+    hexTable['C'] = 12;	hexTable['D'] = 13;
+    hexTable['E'] = 14;	hexTable['F'] = 15;
+    hexTable['a'] = 10;	hexTable['b'] = 11;
+    hexTable['c'] = 12;	hexTable['d'] = 13;
+    hexTable['e'] = 14;	hexTable['f'] = 15;
+
+    /* delimiters of significance are flagged w/ negative value */
+    hexTable[' '] = -1;	hexTable[','] = -1;
+    hexTable['}'] = -1;	hexTable['\n'] = -1;
+    hexTable['\t'] = -1;
+	
+    initialized = True;
+}
+
+/*
+ *	read next hex value in the input stream, return -1 if EOF
+ */
+static int NextInt (fstream)
+    FILE *fstream;
+{
+    int	ch;
+    int	value = 0;
+    int gotone = 0;
+    int done = 0;
+    
+    /* loop, accumulate hex value until find delimiter  */
+    /* skip any initial delimiters found in read stream */
+
+    while (!done) {
+	ch = getc(fstream);
+	if (ch == EOF) {
+	    value	= -1;
+	    done++;
+	} else {
+	    /* trim high bits, check type and accumulate */
+	    ch &= 0xff;
+	    if (isascii(ch) && isxdigit(ch)) {
+		value = (value << 4) + hexTable[ch];
+		gotone++;
+	    } else if ((hexTable[ch]) < 0 && gotone)
+	      done++;
+	}
+    }
+    return value;
+}
+
+
+/*
+ * The data returned by the following routine is always in left-most byte
+ * first and left-most bit first.  If it doesn't return BitmapSuccess then
+ * its arguments won't have been touched.  This routine should look as much
+ * like the Xlib routine XReadBitmapfile as possible.
+ */
+int XmuReadBitmapData (fstream, width, height, datap, x_hot, y_hot)
+    FILE *fstream;			/* handle on file  */
+    unsigned int *width, *height;	/* RETURNED */
+    unsigned char **datap;		/* RETURNED */
+    int *x_hot, *y_hot;			/* RETURNED */
+{
+    unsigned char *data = NULL;		/* working variable */
+    char line[MAX_SIZE];		/* input line from file */
+    int size;				/* number of bytes of data */
+    char name_and_type[MAX_SIZE];	/* an input line */
+    char *type;				/* for parsing */
+    int value;				/* from an input line */
+    int version10p;			/* boolean, old format */
+    int padding;			/* to handle alignment */
+    int bytes_per_line;			/* per scanline of data */
+    unsigned int ww = 0;		/* width */
+    unsigned int hh = 0;		/* height */
+    int hx = -1;			/* x hotspot */
+    int hy = -1;			/* y hotspot */
+
+#ifndef Xmalloc
+#define Xmalloc(size) malloc(size)
+#endif
+
+    /* first time initialization */
+    if (initialized == False) initHexTable();
+
+    /* error cleanup and return macro	*/
+#define	RETURN(code) { if (data) free (data); return code; }
+
+    while (fgets(line, MAX_SIZE, fstream)) {
+	if (strlen(line) == MAX_SIZE-1) {
+	    RETURN (BitmapFileInvalid);
+	}
+	if (sscanf(line,"#define %s %d",name_and_type,&value) == 2) {
+	    if (!(type = strrchr(name_and_type, '_')))
+	      type = name_and_type;
+	    else
+	      type++;
+
+	    if (!strcmp("width", type))
+	      ww = (unsigned int) value;
+	    if (!strcmp("height", type))
+	      hh = (unsigned int) value;
+	    if (!strcmp("hot", type)) {
+		if (type-- == name_and_type || type-- == name_and_type)
+		  continue;
+		if (!strcmp("x_hot", type))
+		  hx = value;
+		if (!strcmp("y_hot", type))
+		  hy = value;
+	    }
+	    continue;
+	}
+    
+	if (sscanf(line, "static short %s = {", name_and_type) == 1)
+	  version10p = 1;
+	else if (sscanf(line,"static unsigned char %s = {",name_and_type) == 1)
+	  version10p = 0;
+	else if (sscanf(line, "static char %s = {", name_and_type) == 1)
+	  version10p = 0;
+	else
+	  continue;
+
+	if (!(type = strrchr(name_and_type, '_')))
+	  type = name_and_type;
+	else
+	  type++;
+
+	if (strcmp("bits[]", type))
+	  continue;
+    
+	if (!ww || !hh)
+	  RETURN (BitmapFileInvalid);
+
+	if ((ww % 16) && ((ww % 16) < 9) && version10p)
+	  padding = 1;
+	else
+	  padding = 0;
+
+	bytes_per_line = (ww+7)/8 + padding;
+
+	size = bytes_per_line * hh;
+	data = (unsigned char *) Xmalloc ((unsigned int) size);
+	if (!data) 
+	  RETURN (BitmapNoMemory);
+
+	if (version10p) {
+	    unsigned char *ptr;
+	    int bytes;
+
+	    for (bytes=0, ptr=data; bytes<size; (bytes += 2)) {
+		if ((value = NextInt(fstream)) < 0)
+		  RETURN (BitmapFileInvalid);
+		*(ptr++) = value;
+		if (!padding || ((bytes+2) % bytes_per_line))
+		  *(ptr++) = value >> 8;
+	    }
+	} else {
+	    unsigned char *ptr;
+	    int bytes;
+
+	    for (bytes=0, ptr=data; bytes<size; bytes++, ptr++) {
+		if ((value = NextInt(fstream)) < 0) 
+		  RETURN (BitmapFileInvalid);
+		*ptr=value;
+	    }
+	}
+	break;
+    }					/* end while */
+
+    if (data == NULL) {
+	RETURN (BitmapFileInvalid);
+    }
+
+    *datap = data;
+    data = NULL;
+    *width = ww;
+    *height = hh;
+    if (x_hot) *x_hot = hx;
+    if (y_hot) *y_hot = hy;
+
+    RETURN (BitmapSuccess);
+}
+
+
+#if NeedFunctionPrototypes
+int XmuReadBitmapDataFromFile (const char *filename, unsigned int *width, 
+			       unsigned int *height, unsigned char **datap,
+			       int *x_hot, int *y_hot)
+#else
+int XmuReadBitmapDataFromFile (filename, width, height, datap, x_hot, y_hot)
+    char *filename;
+    unsigned int *width, *height;	/* RETURNED */
+    unsigned char **datap;		/* RETURNED */
+    int *x_hot, *y_hot;			/* RETURNED */
+#endif
+{
+    FILE *fstream;
+    int status;
+
+    if ((fstream = fopen (filename, "r")) == NULL) {
+	return BitmapOpenFailed;
+    }
+    status = XmuReadBitmapData (fstream, width, height, datap, x_hot, y_hot);
+    fclose (fstream);
+    return status;
+}
+
+/*
+ * XmuPrintDefaultErrorMessage - print a nice error that looks like the usual 
+ * message.  Returns 1 if the caller should consider exitting else 0.
+ */
+int XmuPrintDefaultErrorMessage (dpy, event, fp)
+    Display *dpy;
+    XErrorEvent *event;
+    FILE *fp;
+{
+    char buffer[BUFSIZ];
+    char mesg[BUFSIZ];
+    char number[32];
+    char *mtype = "XlibMessage";
+    _XExtension *ext = (_XExtension *)NULL;
+    XGetErrorText(dpy, event->error_code, buffer, BUFSIZ);
+    XGetErrorDatabaseText(dpy, mtype, "XError", "X Error", mesg, BUFSIZ);
+    (void) fprintf(fp, "%s:  %s\n  ", mesg, buffer);
+    XGetErrorDatabaseText(dpy, mtype, "MajorCode", "Request Major code %d", 
+	mesg, BUFSIZ);
+    (void) fprintf(fp, mesg, event->request_code);
+    if (event->request_code < 128) {
+	sprintf(number, "%d", event->request_code);
+	XGetErrorDatabaseText(dpy, "XRequest", number, "", buffer, BUFSIZ);
+    } else {
+	/* XXX this is non-portable */
+	for (ext = dpy->ext_procs;
+	     ext && (ext->codes.major_opcode != event->request_code);
+	     ext = ext->next)
+	  ;
+	if (ext)
+	    strcpy(buffer, ext->name);
+	else
+	    buffer[0] = '\0';
+    }
+    (void) fprintf(fp, " (%s)", buffer);
+    fputs("\n  ", fp);
+#if (XtSpecificationRelease >= 5)
+    if (event->request_code >= 128) {
+	XGetErrorDatabaseText(dpy, mtype, "MinorCode", "Request Minor code %d",
+			      mesg, BUFSIZ);
+	(void) fprintf(fp, mesg, event->minor_code);
+	if (ext) {
+	    sprintf(mesg, "%s.%d", ext->name, event->minor_code);
+	    XGetErrorDatabaseText(dpy, "XRequest", mesg, "", buffer, BUFSIZ);
+	    (void) fprintf(fp, " (%s)", buffer);
+	}
+	fputs("\n  ", fp);
+    }
+    if (event->error_code >= 128) {
+	/* let extensions try to print the values */
+	/* XXX this is non-portable code */
+	for (ext = dpy->ext_procs; ext; ext = ext->next) {
+	    if (ext->error_values)
+		(*ext->error_values)(dpy, event, fp);
+	}
+	/* the rest is a fallback, providing a simple default */
+	/* kludge, try to find the extension that caused it */
+	buffer[0] = '\0';
+	for (ext = dpy->ext_procs; ext; ext = ext->next) {
+	    if (ext->error_string) 
+		(*ext->error_string)(dpy, event->error_code, &ext->codes,
+				     buffer, BUFSIZ);
+	    if (buffer[0])
+		break;
+	}    
+	if (buffer[0])
+	    sprintf(buffer, "%s.%d", ext->name,
+		    event->error_code - ext->codes.first_error);
+	else
+	    strcpy(buffer, "Value");
+	XGetErrorDatabaseText(dpy, mtype, buffer, "", mesg, BUFSIZ);
+	if (*mesg) {
+	    (void) fprintf(fp, mesg, event->resourceid);
+	    fputs("\n  ", fp);
+	}
+    } else if ((event->error_code == BadWindow) ||
+	       (event->error_code == BadPixmap) ||
+	       (event->error_code == BadCursor) ||
+	       (event->error_code == BadFont) ||
+	       (event->error_code == BadDrawable) ||
+	       (event->error_code == BadColor) ||
+	       (event->error_code == BadGC) ||
+	       (event->error_code == BadIDChoice) ||
+	       (event->error_code == BadValue) ||
+	       (event->error_code == BadAtom)) {
+	if (event->error_code == BadValue)
+	    XGetErrorDatabaseText(dpy, mtype, "Value", "Value 0x%x",
+				  mesg, BUFSIZ);
+	else if (event->error_code == BadAtom)
+	    XGetErrorDatabaseText(dpy, mtype, "AtomID", "AtomID 0x%x",
+				  mesg, BUFSIZ);
+	else
+	    XGetErrorDatabaseText(dpy, mtype, "ResourceID", "ResourceID 0x%x",
+				  mesg, BUFSIZ);
+	(void) fprintf(fp, mesg, event->resourceid);
+	fputs("\n  ", fp);
+    }
+#elif (XtSpecificationRelease == 4)
+    XGetErrorDatabaseText(dpy, mtype, "MinorCode", "Request Minor code %d",
+			  mesg, BUFSIZ);
+    (void) fprintf(fp, mesg, event->minor_code);
+    fputs("\n  ", fp);
+    if (ext) {
+      sprintf(mesg, "%s.%d", ext->name, event->minor_code);
+      XGetErrorDatabaseText(dpy, "XRequest", mesg, "", buffer, BUFSIZ);
+      (void) fprintf(fp, " (%s)", buffer);
+    }
+    XGetErrorDatabaseText(dpy, mtype, "ResourceID", "ResourceID 0x%x",
+			  mesg, BUFSIZ);
+    (void) fprintf(fp, mesg, event->resourceid);
+    fputs("\n  ", fp);
+#else
+ERROR! Unsupported release of X11
+#endif
+    XGetErrorDatabaseText(dpy, mtype, "ErrorSerial", "Error Serial #%d", 
+	mesg, BUFSIZ);
+    (void) fprintf(fp, mesg, event->serial);
+    fputs("\n  ", fp);
+    XGetErrorDatabaseText(dpy, mtype, "CurrentSerial", "Current Serial #%d",
+	mesg, BUFSIZ);
+    (void) fprintf(fp, mesg, NextRequest(dpy)-1);
+    fputs("\n", fp);
+    if (event->error_code == BadImplementation) return 0;
+    return 1;
+}
+
+
+/*
+ * XmuSimpleErrorHandler - ignore errors for XQueryTree, XGetWindowAttributes,
+ * and XGetGeometry; print a message for everything else.  In all case, do
+ * not exit.
+ */
+int XmuSimpleErrorHandler (dpy, errorp)
+    Display *dpy;
+    XErrorEvent *errorp;
+{
+    switch (errorp->request_code) {
+      case X_QueryTree:
+      case X_GetWindowAttributes:
+        if (errorp->error_code == BadWindow) return 0;
+	break;
+      case X_GetGeometry:
+	if (errorp->error_code == BadDrawable) return 0;
+	break;
+    }
+    /* got a "real" X error */
+    return XmuPrintDefaultErrorMessage (dpy, errorp, stderr);
+}	
+
+void XmuCopyISOLatin1Lowered(char *dst, char *src)
+{
+    unsigned char *dest, *source;
+
+    for (dest = (unsigned char *)dst, source = (unsigned char *)src;
+         *source;
+         source++, dest++)
+    {
+        if ((*source >= XK_A) && (*source <= XK_Z))
+            *dest = *source + (XK_a - XK_A);
+        else if ((*source >= XK_Agrave) && (*source <= XK_Odiaeresis))
+            *dest = *source + (XK_agrave - XK_Agrave);
+        else if ((*source >= XK_Ooblique) && (*source <= XK_Thorn))
+            *dest = *source + (XK_oslash - XK_Ooblique);
+        else
+            *dest = *source;
+    }
+    *dest = '\0';
+}
+#endif /* !HAVE_XMU */