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xlsfonts.c

/*
 * $Xorg: xlsfonts.c,v 1.4 2001/02/09 02:05:54 xorgcvs Exp $
 *
 * 
Copyright 1989, 1998  The Open Group

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.

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.
 * */
/* $XFree86: xc/programs/xlsfonts/xlsfonts.c,v 1.9 2003/09/08 14:25:33 eich Exp $ */

#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xos.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#ifdef BUILD_PRINTSUPPORT
#include <X11/XprintUtil/xprintutil.h>
#endif /* BUILD_PRINTSUPPORT */
#include "dsimple.h"

#define N_START INT_MAX  /* Maximum # of fonts to start with (should
                          * always be be > 10000 as modern OSes like 
                          * Solaris 8 already have more than 9000 XLFD
                          * fonts available) */

#define L_SHORT    0
#define L_MEDIUM   1
#define L_LONG     2
#define L_VERYLONG 3

static int  max_output_line_width     = 79;
static int  output_line_padding       = 3;
static int  columns                   = 0;

static Bool sort_output               = True;
static Bool open_instead_of_list      = False;
static int  long_list                 = L_SHORT;
static int  nnames                    = N_START;
static int  font_cnt                  = 0;
static int  min_max;

typedef struct {
  char           *name;
  XFontStruct    *info;
#ifdef BUILD_PRINTSUPPORT
  char           *listfonts_modes;
#endif /* BUILD_PRINTSUPPORT */
} FontList;

static FontList *font_list = NULL;

/* Local prototypes */
#ifdef BUILD_PRINTSUPPORT
static Bool IsListfontsModesChangeSupported(char *mode);
static int  SetListfontsModes(const char *attrname, Bool enableattr);
#endif /* BUILD_PRINTSUPPORT */
static void get_list(char *pattern);
static int  compare(const void *arg1, const void *arg2);
static void show_fonts(void);
static void copy_number(char **pp1, char**pp2, int n1, int n2);
static int  IgnoreError(Display *disp, XErrorEvent *event);
static void PrintProperty(XFontProp *prop);
static void ComputeFontType(XFontStruct *fs);
static void print_character_metrics(register XFontStruct *info);
static void do_query_font (Display *dpy, char *name);

void usage(void)
{
    fprintf (stderr, "usage:  %s [-options] [-fn pattern]\n", program_name);
    fprintf (stderr, "where options include:\n");
    fprintf (stderr, "    -l[l[l]]                 give long info about each font\n");
    fprintf (stderr, "    -m                       give character min and max bounds\n");
    fprintf (stderr, "    -C                       force columns\n");
    fprintf (stderr, "    -1                       force single column\n");
    fprintf (stderr, "    -u                       keep output unsorted\n");
#ifdef BUILD_PRINTSUPPORT
    fprintf (stderr, "    -r resolution            set print resolution\n");
    fprintf (stderr, "    -b                       list printer builtin fonts\n");
    fprintf (stderr, "    -B                       do not list printer builtin fonts\n");
    fprintf (stderr, "    -g                       list glyph fonts\n");
    fprintf (stderr, "    -G                       do not list glyph fonts\n");
    fprintf (stderr, "    -x mode                  enable listfont mode\n");
    fprintf (stderr, "    -X mode                  disable listfont mode\n");
#endif /* BUILD_PRINTSUPPORT */
    fprintf (stderr, "    -o                       use OpenFont/QueryFont instead of ListFonts\n");
    fprintf (stderr, "    -w width                 maximum width for multiple columns\n");
    fprintf (stderr, "    -n columns               number of columns if multi column\n");
    fprintf (stderr, "    -display displayname     X server to contact\n");
    fprintf (stderr, "    -d displayname           (alias for -display displayname)\n");
#ifdef BUILD_PRINTSUPPORT
    fprintf (stderr, "    -printer printername     printer to use\n");
    fprintf (stderr, "    -p printername           (alias for -p printername)\n");
#endif /* BUILD_PRINTSUPPORT */
    fprintf (stderr, "\n");
    Close_Display();
    exit(EXIT_FAILURE);
}

int main(int argc, char **argv)
{
    int argcnt = 0, i;
    char *mode;

    INIT_NAME;

    /* Handle command line arguments, open display */
    Setup_Display_And_Screen(&argc, argv);

#ifdef BUILD_PRINTSUPPORT
    if (printer_output) {
        /* XListFonts*()/XLoadFont*() honor xp-listfonts-modes only 
         * if there is an context _SET_ for this display */
        XpSetContext(dpy, pcontext);
    }
#endif /* BUILD_PRINTSUPPORT */

    for (argv++, argc--; argc; argv++, argc--) {
        if (argv[0][0] == '-') {
            if (argcnt > 0) usage ();
            for (i=1; argv[0][i]; i++)
                switch(argv[0][i]) {
                case 'l':
                    long_list++;
                    break;
                case 'm':
                    min_max++;
                    break;
                case 'C':
                    columns = 0;
                    break;
                case '1':
                    columns = 1;
                    break;
                case 'f': /* "-fn" */
                    if (--argc <= 0) usage ();
                    if (argv[0][i+1] != 'n') usage ();
                    argcnt++;
                    argv++;
                    get_list(argv[0]);
                    goto next;
                case 'w':
                    if (--argc <= 0) usage ();
                    argv++;
                    max_output_line_width = atoi(argv[0]);
                    goto next;
                case 'n':
                    if (--argc <= 0) usage ();
                    argv++;
                    columns = atoi(argv[0]);
                    goto next;
                case 'o':
                    open_instead_of_list = True;
                    break;
                case 'u':
                    sort_output = False;
                    break;
#ifdef BUILD_PRINTSUPPORT
                case 'r':
                {
                    const char        *resname;
                    XpuResolutionList  rlist;
                    int                num_rlist;
                    XpuResolutionRec  *res;

                    if (--argc <= 0) usage ();
                    argv++;
                    resname = argv[0];
                    
                    if (!printer_output)
                        Fatal_Error("Option '%c' only supported for printers.", argv[0][i]);
                    rlist = XpuGetResolutionList(dpy, pcontext, &num_rlist);
                    if (!rlist)
                        Fatal_Error("Could not get list of supported resolutions (Server configuration error ?).");
                    res = XpuFindResolutionByName(rlist, num_rlist, resname);
                    if (!res)
                        Fatal_Error("Could not find resolution '%s'.", resname);
                    XpuSetDocResolution(dpy, pcontext, res);
                    XpuFreeResolutionList(rlist);
                }
                    goto next;
                case 'b':
                    mode = "xp-list-internal-printer-fonts";
                    if (!printer_output)
                        Fatal_Error("Option '%c' only supported for printers.", argv[0][i]);
                    if (!IsListfontsModesChangeSupported(mode))
                        Fatal_Error("Printer does not support changing '%s'.", mode);
                    SetListfontsModes(mode, True);
                    break;
                case 'B':
                    mode = "xp-list-internal-printer-fonts";
                    if (!printer_output)
                        Fatal_Error("Option '%c' only supported for printers.", argv[0][i]);
                    if (!IsListfontsModesChangeSupported(mode))
                        Fatal_Error("Printer does not support changing '%s'.", mode);
                    SetListfontsModes(mode, False);
                    break;
                case 'g':
                    mode = "xp-list-glyph-fonts";
                    if (!printer_output)
                        Fatal_Error("Option '%c' only supported for printers.", argv[0][i]);
                    if (!IsListfontsModesChangeSupported(mode))
                        Fatal_Error("Printer does not support changing '%s'.", mode);
                    SetListfontsModes(mode, True);
                    break;
                case 'G':
                    mode = "xp-list-glyph-fonts";
                    if (!printer_output)
                        Fatal_Error("Option '%c' only supported for printers.", argv[0][i]);
                    if (!IsListfontsModesChangeSupported(mode))
                        Fatal_Error("Printer does not support changing '%s'.", mode);
                    SetListfontsModes(mode, False);
                    break;
                case 'x':
                    if (--argc <= 0) usage ();
                    argv++;
                    mode = argv[0];
                    if (!printer_output)
                        Fatal_Error("Option '%c' only supported for printers.", argv[0][i-1]);
                    if (!IsListfontsModesChangeSupported(mode))
                        Fatal_Error("Printer does not support changing '%s'.", mode);
                    SetListfontsModes(mode, True);
                    goto next;
                case 'X':
                    if (--argc <= 0) usage ();
                    argv++;
                    mode = argv[0];
                    if (!printer_output)
                        Fatal_Error("Option '%c' only supported for printers.", argv[0][i-1]);
                    if (!IsListfontsModesChangeSupported(mode))
                        Fatal_Error("Printer does not support changing '%s'.", mode);
                    SetListfontsModes(mode, False);
                    goto next;
#endif /* BUILD_PRINTSUPPORT */
                default:
                    usage();
                    break;
                }
            if (i == 1)
                usage();
        } else {
            argcnt++;
            get_list(argv[0]);
        }
      next: ;
    }

    if (argcnt == 0)
        get_list("*");

    show_fonts();
    
    Close_Display();
    return EXIT_SUCCESS;
}

#ifdef BUILD_PRINTSUPPORT
/* This should be moved to XprintUtils */
static 
Bool IsListfontsModesChangeSupported(char *mode)
{
    char *value;
    Bool  isSupported;
    
    value = XpGetOneAttribute(dpy, pcontext, XPPrinterAttr, "xp-listfonts-modes-supported"); 
    if (!value)
        return False;
      
    isSupported = (strstr(value, mode) != NULL)?(True):(False);
    XFree(value);
      
    return isSupported;
}

/* XXX: This should be moved to XprintUtils (and should have a Document/Page-level
 * option and should verify that the matching leven supports xp-listfonts-modes
 * changes)*/
static
int SetListfontsModes(const char *attrname, Bool enableattr)
{
  char *value,
       *newvalue;
  
  value = XpGetOneAttribute(dpy, pcontext, XPDocAttr, "xp-listfonts-modes");
  if (!value)
      value = strdup("");

  /* Set attribute */
  if (enableattr)
  {
      /* Return success if |attrname| is already set */
      if (strstr(value, attrname) != NULL)
      {
          XFree(value);
          return 1; /* success */
      }

      newvalue = malloc(strlen(value) + strlen(attrname) + 2);
      if (!newvalue)
      {
          XFree(value);
          Fatal_Error("SetListfontsModes: No memory.");
      }

      sprintf(newvalue, "%s %s", value, attrname);
      XpuSetOneAttribute(dpy, pcontext, XPDocAttr, "*xp-listfonts-modes", newvalue, XPAttrMerge);

      free(newvalue);
      XFree(value);
      return 1; /* success */
  }
  else
  {
      char *s, /* copy string "source" */
           *d; /* copy string "destination" */

      /* Return success if |attrname| not set */
      d = strstr(value, attrname);
      if (d == NULL)
      {
          XFree(value);
          return 1; /* success */
      }

      /* strip |attrname| from |value| */
      s = d+strlen(attrname);
      while( (*d++ = *s++) != '\0' )
          ;

      XpuSetOneAttribute(dpy, pcontext, XPDocAttr, "*xp-listfonts-modes", value, XPAttrMerge);

      XFree(value);
      return 1; /* success */
  } 
}
#endif /* BUILD_PRINTSUPPORT */

static
void get_list(char *pattern)
{
    int           available = nnames+1,
                  i;
    char        **fonts;
    XFontStruct  *info;

    /* Get list of fonts matching pattern */
    for (;;) {
        if (open_instead_of_list) {
            info = XLoadQueryFont (dpy, pattern);

            if (info) {
                fonts = &pattern;
                available = 1;
                XUnloadFont (dpy, info->fid);
            } else {
                fonts = NULL;
            }
            break;
        }
            
        if (long_list == L_MEDIUM)
            fonts = XListFontsWithInfo(dpy, pattern, nnames, &available, &info);
        else
            fonts = XListFonts(dpy, pattern, nnames, &available);
        if (fonts == NULL || available < nnames)
            break;
        if (long_list == L_MEDIUM)
            XFreeFontInfo(fonts, info, available);
        else
            XFreeFontNames(fonts);
        nnames = available * 2;
    }

    if (fonts == NULL) {
        fprintf(stderr, "%s: pattern \"%s\" unmatched\n",
                program_name, pattern);
        return;
    }

    font_list = (FontList *)Realloc((char *)font_list,
            (font_cnt + available) * sizeof(FontList));
    for (i=0; i<available; i++) {
        font_list[font_cnt].name = fonts[i];
        if (long_list == L_MEDIUM)
            font_list[font_cnt].info = info + i;
        else
            font_list[font_cnt].info = NULL;

#ifdef BUILD_PRINTSUPPORT
        if (printer_output) {
            char *listfonts_modes;

            listfonts_modes = XpGetOneAttribute(dpy, pcontext, XPDocAttr, "xp-listfonts-modes");

            /* Save status of xp-listfonts-modes */
            font_list[font_cnt].listfonts_modes = strdup(listfonts_modes?listfonts_modes:"");

            if (listfonts_modes)
                XFree(listfonts_modes);
        }
        else
        {
            font_list[font_cnt].listfonts_modes = NULL;
        }
#endif /* BUILD_PRINTSUPPORT */
        
        font_cnt++;
    }
}

static
int compare(const void *arg1, const void *arg2)
{
    const FontList *f1 = arg1;
    const FontList *f2 = arg2;
    const char *p1 = f1->name;
    const char *p2 = f2->name;

    while (*p1 && *p2 && *p1 == *p2)
            p1++, p2++;
    return(*p1 - *p2);
}

static
void show_fonts(void)
{
    int i;

    if (font_cnt == 0)
        return;

    /* first sort the output */
    if (sort_output) qsort(font_list, font_cnt, sizeof(FontList), compare);

    if (long_list > L_MEDIUM) {
        for (i = 0; i < font_cnt; i++) {
#ifdef BUILD_PRINTSUPPORT
            if (printer_output) {
                /* Restore saved xp-listfonts-modes status */
                XpuSetOneAttribute(dpy, pcontext, XPDocAttr, "*xp-listfonts-modes", font_list[i].listfonts_modes, XPAttrMerge);
            }
#endif /* BUILD_PRINTSUPPORT */

            do_query_font (dpy, font_list[i].name);
        }
        return;
    }

    if (long_list == L_MEDIUM) {
        XFontStruct *pfi;
        char        *string;

        printf("DIR  ");
        printf("MIN  ");
        printf("MAX ");
        printf("EXIST ");
        printf("DFLT ");
        printf("PROP ");
        printf("ASC ");
        printf("DESC ");
        printf("NAME");
        printf("\n");
        for (i=0; i<font_cnt; i++) {
            pfi = font_list[i].info;
            if (!pfi) {
                fprintf(stderr, "%s:  no font information for font \"%s\".\n",
                        program_name, 
                        font_list[i].name ? 
                        font_list[i].name : "");
                continue;
            }
            switch(pfi->direction) {
                case FontLeftToRight: string = "-->"; break;
                case FontRightToLeft: string = "<--"; break;
                default:              string = "???"; break;
            }
            printf("%-4s", string);
            if (pfi->min_byte1 == 0 &&
                pfi->max_byte1 == 0) {
                printf(" %3d ", pfi->min_char_or_byte2);
                printf(" %3d ", pfi->max_char_or_byte2);
            } else {
                printf("*%3d ", pfi->min_byte1);
                printf("*%3d ", pfi->max_byte1);
            }
            printf("%5s ", pfi->all_chars_exist ? "all" : "some");
            printf("%4d ", pfi->default_char);
            printf("%4d ", pfi->n_properties);
            printf("%3d ", pfi->ascent);
            printf("%4d ", pfi->descent);
            printf("%s\n", font_list[i].name);
            if (min_max) {
                char  min[ BUFSIZ ],
                      max[ BUFSIZ ];
                char *pmax = max,
                     *pmin = min;

                strcpy(pmin, "     min(l,r,w,a,d) = (");
                strcpy(pmax, "     max(l,r,w,a,d) = (");
                pmin += strlen(pmin);
                pmax += strlen(pmax);

                copy_number(&pmin, &pmax,
                            pfi->min_bounds.lbearing,
                            pfi->max_bounds.lbearing);
                *pmin++ = *pmax++ = ',';
                copy_number(&pmin, &pmax,
                            pfi->min_bounds.rbearing,
                            pfi->max_bounds.rbearing);
                *pmin++ = *pmax++ = ',';
                copy_number(&pmin, &pmax,
                            pfi->min_bounds.width,
                            pfi->max_bounds.width);
                *pmin++ = *pmax++ = ',';
                copy_number(&pmin, &pmax,
                            pfi->min_bounds.ascent,
                            pfi->max_bounds.ascent);
                *pmin++ = *pmax++ = ',';
                copy_number(&pmin, &pmax,
                            pfi->min_bounds.descent,
                            pfi->max_bounds.descent);
                *pmin++ = *pmax++ = ')';
                *pmin = *pmax = '\0';
                printf("%s\n", min);
                printf("%s\n", max);
            }
        }
        return;
    }

    if ((columns == 0 && isatty(1)) || columns > 1) {
        int width,
            max_width = 0,
            lines_per_column,
            j,
            index;

        for (i=0; i<font_cnt; i++) {
            width = strlen(font_list[i].name);
            if (width > max_width)
                max_width = width;
        }
        if (max_width == 0)
            Fatal_Error("all %d fontnames listed are zero length", font_cnt);

        if (columns == 0) {
            if ((max_width * 2) + output_line_padding >
                max_output_line_width) {
                columns = 1;
            } else {
                max_width += output_line_padding;
                columns = ((max_output_line_width +
                            output_line_padding) / max_width);
            }
        } else {
            max_width += output_line_padding;
        }
        if (columns <= 1) goto single_column;

        if (font_cnt < columns)
            columns = font_cnt;
        lines_per_column = (font_cnt + columns - 1) / columns;

        for (i=0; i<lines_per_column; i++) {
            for (j=0; j<columns; j++) {
                index = j * lines_per_column + i;
                if (index >= font_cnt)
                    break;
                if (j+1 == columns)
                    printf("%s", font_list[ index ].name);
                else
                    printf("%-*s",
                           max_width, 
                           font_list[ index ].name);
            }
            printf("\n");
        }
        return;
    }

  single_column:
    for (i=0; i<font_cnt; i++)
        printf("%s\n", font_list[i].name);
}

static
void copy_number(char **pp1, char**pp2, int n1, int n2)
{
    char *p1 = *pp1;
    char *p2 = *pp2;
    int   w;

    sprintf(p1, "%d", n1);
    sprintf(p2, "%d", n2);
    w = MAX(strlen(p1), strlen(p2));
    sprintf(p1, "%*d", w, n1);
    sprintf(p2, "%*d", w, n2);
    p1 += strlen(p1);
    p2 += strlen(p2);
    *pp1 = p1;
    *pp2 = p2;
}



/* ARGSUSED */
static
int IgnoreError(Display *disp, XErrorEvent *event)
{
    return 0;
}

static char *bounds_metrics_title =
                      "width left  right  asc  desc   attr   keysym\n";
static char *char_metrics_fmt = 
"\t0x%02x%02x (%u)\t%4d  %4d  %4d  %4d  %4d  0x%04x  %s\n";
static char *bounds_metrics_fmt =
"\t%3s\t\t%4d  %4d  %4d  %4d  %4d  0x%04x\n";


#define PrintBounds(_what,_ptr) \
{   register XCharStruct *p = (_ptr); \
    printf (bounds_metrics_fmt, (_what), p->width, p->lbearing, \
          p->rbearing, p->ascent, p->descent, p->attributes); }


static char* stringValued [] = { /* values are atoms */
    /* font name components (see section 3.2 of the XLFD) */
    "FOUNDRY",
    "FAMILY_NAME",
    "WEIGHT_NAME",
    "SLANT",
    "SETWIDTH_NAME",
    "ADD_STYLE_NAME",
    "SPACING",
    "CHARSET_REGISTRY",
    "CHARSET_ENCODING",

    /* other standard X font properties (see section 3.2 of the XLFD) */
    "FONT",
    "FACE_NAME",
    "FULL_NAME",              /* deprecated */
    "COPYRIGHT",
    "NOTICE",
    "FONT_TYPE",
    "FONT_VERSION",
    "RASTERIZER_NAME",
    "RASTERIZER_VERSION",

    /* other registered font properties (see the X.org Registry, sec. 15) */
    
#ifdef BUILD_PRINTSUPPORT   
    /* Used by Xprint's Postscript and PDF DDX */
    "_ADOBE_POSTSCRIPT_FONTNAME",
    
    /* Used by Xprint's PCL DDXs */
    "PCL_FONT_NAME",
#endif /* BUILD_PRINTSUPPORT */

    /* unregistered font properties */
    "CHARSET_COLLECTIONS",
    "CLASSIFICATION",
    "DEVICE_FONT_NAME",
    "FONTNAME_REGISTRY",
    "MONOSPACED",
    "QUALITY",
    "RELATIVE_SET",
    "STYLE",
     NULL
    };

static
void PrintProperty(XFontProp *prop)
{
    char *atom, *value;
    char nosuch[40];
    int i;
    XErrorHandler oldhandler = XSetErrorHandler(IgnoreError);

    atom = XGetAtomName(dpy, prop->name);
    if (!atom) {
        atom = nosuch;
        nosuch[0] = '\0';
        (void)sprintf (atom, "No such atom = %ld", prop->name);
    }
    printf ("      %s", atom);

    /* Pad out to a column width of 22, but ensure there is always at
       least one space between property name & value. */
    for (i = strlen(atom); i < 21; i++) putchar (' ');
    putchar(' ');

    for (i = 0; ; i++) {
        if (stringValued[i] == NULL) {
            printf ("%ld\n", prop->card32);
            break;
        }
        if (strcmp(stringValued[i], atom) == 0) {
            value = XGetAtomName(dpy, prop->card32);
            if (value == NULL)
                printf ("%ld (expected string value)\n", prop->card32);
            else {
                printf ("%s\n", value);
                XFree (value);
            }
            break;
        }
    } 
    if (atom != nosuch) XFree (atom);
    XSetErrorHandler (oldhandler);
}


static void
ComputeFontType(XFontStruct *fs)
{
    int i;
    Bool char_cell = True;
    char *reason = NULL;
    XCharStruct *cs;
    Atom awatom = XInternAtom (dpy, "AVERAGE_WIDTH", False);

    printf ("  font type:\t\t");
    if (fs->min_bounds.width != fs->max_bounds.width) {
        printf ("Proportional (min and max widths not equal)\n");
        return;
    }

    if (awatom) {
        for (i = 0; i < fs->n_properties; i++) {
            if (fs->properties[i].name == awatom &&
                (fs->max_bounds.width * 10) != fs->properties[i].card32) {
                char_cell = False;
                reason = "font width not equal to AVERAGE_WIDTH";
                break;
            }
        }
    }

    if (fs->per_char) {
        for (i = fs->min_char_or_byte2, cs = fs->per_char;
             i <= fs->max_char_or_byte2; i++, cs++) {
            if (cs->width == 0) continue;
            if (cs->width != fs->max_bounds.width) {
                /* this shouldn't happen since we checked above */
                printf ("Proportional (characters not all the same width)\n");
                return;
            }
            if (char_cell) {
                if (cs->width < 0) {
                    if (!(cs->width <= cs->lbearing &&
                          cs->lbearing <= cs->rbearing &&
                          cs->rbearing <= 0)) {
                        char_cell = False;
                        reason = "ink outside bounding box";
                    }
                } else {
                    if (!(0 <= cs->lbearing &&
                          cs->lbearing <= cs->rbearing &&
                          cs->rbearing <= cs->width)) {
                        char_cell = False;
                        reason = "ink outside bounding box";
                    }
                }
                if (!(cs->ascent <= fs->ascent &&
                      cs->descent <= fs->descent)) {
                    char_cell  = False;
                    reason = "characters not all same ascent or descent";
                }
            }
        }
    }

    printf ("%s", char_cell ? "Character Cell" : "Monospaced");
    if (reason) printf (" (%s)", reason);
    printf ("\n");
        
    return;
}


static void
print_character_metrics(register XFontStruct *info)
{
    register XCharStruct *pc = info->per_char;
    register int i, j;
    unsigned n, saven;

    printf ("  character metrics:\n");
    saven = ((info->min_byte1 << 8) | info->min_char_or_byte2);
    for (j = info->min_byte1; j <= info->max_byte1; j++) {
        n = saven;
        for (i = info->min_char_or_byte2; i <= info->max_char_or_byte2; i++) {
            char *s = XKeysymToString ((KeySym) n);
            printf (char_metrics_fmt, j, i, n, pc->width, pc->lbearing,
                    pc->rbearing, pc->ascent, pc->descent, pc->attributes,
                    s ? s : ".");
            pc++;
            n++;
        }
        saven += 256;
    }
}

static
void do_query_font (Display *dpy, char *name)
{
    register int i;
    register XFontStruct *info = XLoadQueryFont (dpy, name);

    if (!info) {
        fprintf (stderr, "%s:  unable to get info about font \"%s\"\n",
                 program_name, name);
        return;
    }
    printf ("name:  %s\n", name ? name : "(nil)");
    printf ("  direction:\t\t%s\n", ((info->direction == FontLeftToRight)
                                     ? "left to right" : "right to left"));
    printf ("  indexing:\t\t%s\n", 
            ((info->min_byte1 == 0 && info->max_byte1 == 0) ? "linear" :
             "matrix"));
    printf ("  rows:\t\t\t0x%02x thru 0x%02x (%d thru %d)\n",
            info->min_byte1, info->max_byte1,
            info->min_byte1, info->max_byte1);
    printf ("  columns:\t\t0x%02x thru 0x%02x (%d thru %d)\n",
            info->min_char_or_byte2, info->max_char_or_byte2,
            info->min_char_or_byte2, info->max_char_or_byte2);
    printf ("  all chars exist:\t%s\n",
        (info->all_chars_exist) ? "yes" : "no");
    printf ("  default char:\t\t0x%04x (%d)\n",
            info->default_char, info->default_char);
    printf ("  ascent:\t\t%d\n", info->ascent);
    printf ("  descent:\t\t%d\n", info->descent);
    ComputeFontType (info);
    printf ("  bounds:\t\t%s", bounds_metrics_title);
    PrintBounds ("min", &info->min_bounds);
    PrintBounds ("max", &info->max_bounds);
    if (info->per_char && long_list >= L_VERYLONG) 
        print_character_metrics (info);
    printf ("  properties:\t\t%d\n", info->n_properties);
    for (i = 0; i < info->n_properties; i++)
        PrintProperty (&info->properties[i]);
    printf ("\n");

    XFreeFontInfo (NULL, info, 1);
}



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