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. More...
void | mkftable (unsigned plane, int pagecount[256], int links)
| Create an HTML table linked to PNG images. More...

## 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.

## 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 67 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 */
void mkftable(); /* make (print) flipped HTML table */
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 185 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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MAXBUF
#define MAXBUF
Maximum input line size - 1.
Definition: unipagecount.c:56
mkftable
void mkftable(unsigned plane, int pagecount[256], int links)
Create an HTML table linked to PNG images.
Definition: unipagecount.c:185