unipagecount.c File Reference

unipagecount - Count the number of glyphs defined in each page of 256 code points More...

#include <stdio.h>
#include <stdlib.h>

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Macros
#define	MAXBUF   256
	Maximum input line size - 1.

Functions
int	main (int argc, char *argv[])
	The main function.
void	mkftable (unsigned plane, int pagecount[256], int links)
	Create an HTML table linked to PNG images.

Detailed Description

unipagecount - Count the number of glyphs defined in each page of 256 code points

Author

Paul Hardy, unifoundry <at> unifoundry.com, December 2007

Copyright

Copyright (C) 2007, 2008, 2013, 2014 Paul Hardy

This program counts the number of glyphs that are defined in each "page" of 256 code points, and prints the counts in an 8 x 8 grid. Input is from stdin. Output is to stdout.

The background color of each cell in a 16-by-16 grid of 256 code points is shaded to indicate percentage coverage. Red indicates 0% coverage, green represents 100% coverage, and colors in between pure red and pure green indicate partial coverage on a scale.

Each code point range number can be a hyperlink to a PNG file for that 256-code point range's corresponding bitmap glyph image.

Synopsis:

      unipagecount < font_file.hex > count.txt
      unipagecount -phex_page_num < font_file.hex  -- just 256 points
      unipagecount -h < font_file.hex              -- HTML table
      unipagecount -P1 -h < font.hex > count.html  -- Plane 1, HTML out
      unipagecount -l < font_file.hex              -- linked HTML table

Definition in file unipagecount.c.

Macro Definition Documentation

MAXBUF

#define MAXBUF   256

Maximum input line size - 1.

Definition at line 59 of file unipagecount.c.

Function Documentation

main()

int main	(	int	argc,
		char *	argv[]
	)

The main function.

Parameters

[in]	argc	The count of command line arguments.
[in]	argv	Pointer to array of command line arguments.

Returns

This program exits with status 0.

Definition at line 70 of file unipagecount.c.

{
 
   char inbuf[MAXBUF]; /* Max 256 characters in an input line */
   int i, j;  /* loop variables */
   unsigned plane=0; /* Unicode plane number, 0 to 0x16 */
   unsigned page;  /* unicode page (256 bytes wide) */
   unsigned unichar; /* unicode character */
   int pagecount[256] = {256 * 0};
   int onepage=0; /* set to one if printing character grid for one page */
   int pageno=0; /* page number selected if only examining one page */
   int html=0;   /* =0: print plain text; =1: print HTML */
   int links=0;  /* =1: print HTML links; =0: don't print links */
 
   /* make (print) flipped HTML table */
   void mkftable (unsigned plane, int pagecount[256], int links);
 
   size_t strlen();
 
   if (argc > 1 && argv[1][0] == '-') {  /* Parse option */
      plane = 0;
      for (i = 1; i < argc; i++) {
         switch (argv[i][1]) {
            case 'p':  /* specified -p<hexpage> -- use given page number */
               sscanf (&argv[1][2], "%x", &pageno);
               if (pageno >= 0 && pageno <= 255) onepage = 1;
               break;
            case 'h':  /* print HTML table instead of text table */
               html = 1;
               break;
            case 'l':  /* print hyperlinks in HTML table */
               links = 1;
               html = 1;
               break;
            case 'P':  /* Plane number specified */
               plane = atoi(&argv[1][2]);
               break;
         }
      }
   }
   /*
      Initialize pagecount to account for noncharacters.
   */
   if (!onepage && plane==0) {
      pagecount[0xfd] = 32;  /* for U+FDD0..U+FDEF */
   }
   pagecount[0xff] = 2;   /* for U+nnFFFE, U+nnFFFF */
   /*
      Read one line at a time from input.  The format is:
 
         <hexpos>:<hexbitmap>
 
      where <hexpos> is the hexadecimal Unicode character position
      in the range 00..FF and <hexbitmap> is the sequence of hexadecimal
      digits of the character, laid out in a grid from left to right,
      top to bottom.  The character is assumed to be 16 rows of variable
      width.
   */
   while (fgets (inbuf, MAXBUF-1, stdin) != NULL) {
      sscanf (inbuf, "%X", &unichar);
      page = unichar >> 8;
      if (onepage) { /* only increment counter if this is page we want */
         if (page == pageno) { /* character is in the page we want */
            pagecount[unichar & 0xff]++; /* mark character as covered */
         }
      }
      else { /* counting all characters in all pages */
         if (plane == 0) {
            /* Don't add in noncharacters (U+FDD0..U+FDEF, U+FFFE, U+FFFF) */
            if (unichar < 0xfdd0 || (unichar > 0xfdef && unichar < 0xfffe))
               pagecount[page]++;
         }
         else {
            if ((page >> 8) == plane) { /* code point is in desired plane */
               pagecount[page & 0xFF]++;
            }
         }
      }
   }
   if (html) {
      mkftable (plane, pagecount, links);
   }
   else {  /* Otherwise, print plain text table */
      if (plane > 0) fprintf (stdout, "  ");
      fprintf (stdout,
         "     0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F\n");
      for (i=0; i<0x10; i++) {
         fprintf (stdout,"%02X%X ", plane, i); /* row header */
         for (j=0; j<0x10; j++) {
            if (onepage) {
               if (pagecount[i*16+j])
                  fprintf (stdout," *  ");
               else
                  fprintf (stdout," .  ");
            }
            else {
               fprintf (stdout, "%3X ", pagecount[i*16+j]);
            }
         }
         fprintf (stdout,"\n");
      }
   
   }
   exit (0);
}

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mkftable()

void mkftable	(	unsigned	plane,
		int	pagecount[256],
		int	links
	)

Create an HTML table linked to PNG images.

This function creates an HTML table to show PNG files in a 16 by 16 grid. The background color of each "page" of 256 code points is shaded from red (for 0% coverage) to green (for 100% coverage).

Parameters

[in]	plane	The Unicode plane, 0..17.
[in]	pagecount	Array with count of glyphs in each 256 code point range.
[in]	links	1 = generate hyperlinks, 0 = do not generate hyperlinks.

Definition at line 190 of file unipagecount.c.

{
   int i, j;
   int count;
   unsigned bgcolor;
   
   printf ("<html>\n");
   printf ("<body>\n");
   printf ("<table border=\"3\" align=\"center\">\n");
   printf ("  <tr><th colspan=\"16\" bgcolor=\"#ffcc80\">");
   printf ("GNU Unifont Glyphs<br>with Page Coverage for Plane %d<br>(Green=100%%, Red=0%%)</th></tr>\n", plane);
   for (i = 0x0; i <= 0xF; i++) {
      printf ("  <tr>\n");
      for (j = 0x0; j <= 0xF; j++) {
         count = pagecount[ (i << 4) | j ];
         
         /* print link in cell if links == 1 */
         if (plane != 0 || (i < 0xd || (i == 0xd && j < 0x8) || (i == 0xf && j > 0x8))) {
            /* background color is light green if completely done */
            if (count == 0x100) bgcolor = 0xccffcc;
            /* otherwise background is a shade of yellow to orange to red */
            else bgcolor = 0xff0000 | (count << 8) | (count >> 1);
            printf ("    <td bgcolor=\"#%06X\">", bgcolor);
            if (plane == 0)
               printf ("<a href=\"png/plane%02X/uni%02X%X%X.png\">%X%X</a>", plane, plane, i, j, i, j);
            else
               printf ("<a href=\"png/plane%02X/uni%02X%X%X.png\">%02X%X%X</a>", plane, plane, i, j, plane, i, j);
            printf ("</td>\n");
         }
         else if (i == 0xd) {
            if (j == 0x8) {
               printf ("    <td align=\"center\" colspan=\"8\" bgcolor=\"#cccccc\">");
               printf ("<b>Surrogate Pairs</b>");
               printf ("</td>\n");
            }  /* otherwise don't print anything more columns in this row */
         }
         else if (i == 0xe) {
            if (j == 0x0) {
               printf ("    <td align=\"center\" colspan=\"16\" bgcolor=\"#cccccc\">");
               printf ("<b>Private Use Area</b>");
               printf ("</td>\n");
            }  /* otherwise don't print any more columns in this row */
         }
         else if (i == 0xf) {
            if (j == 0x0) {
               printf ("    <td align=\"center\" colspan=\"9\" bgcolor=\"#cccccc\">");
               printf ("<b>Private Use Area</b>");
               printf ("</td>\n");
            }
         }
      }
      printf ("  </tr>\n");
   }
   printf ("</table>\n");
   printf ("</body>\n");
   printf ("</html>\n");
 
   return;
}

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