GNU Unifont  15.1.01
Pan-Unicode font with complete Unicode Plane 0 coverage and partial coverage of higher planes
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

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]argcThe count of command line arguments.
[in]argvPointer to array of command line arguments.
Returns
This program exits with status 0.

Definition at line 67 of file unipagecount.c.

68 {
69 
70  char inbuf[MAXBUF]; /* Max 256 characters in an input line */
71  int i, j; /* loop variables */
72  unsigned plane=0; /* Unicode plane number, 0 to 0x16 */
73  unsigned page; /* unicode page (256 bytes wide) */
74  unsigned unichar; /* unicode character */
75  int pagecount[256] = {256 * 0};
76  int onepage=0; /* set to one if printing character grid for one page */
77  int pageno=0; /* page number selected if only examining one page */
78  int html=0; /* =0: print plain text; =1: print HTML */
79  int links=0; /* =1: print HTML links; =0: don't print links */
80  void mkftable(); /* make (print) flipped HTML table */
81 
82  size_t strlen();
83 
84  if (argc > 1 && argv[1][0] == '-') { /* Parse option */
85  plane = 0;
86  for (i = 1; i < argc; i++) {
87  switch (argv[i][1]) {
88  case 'p': /* specified -p<hexpage> -- use given page number */
89  sscanf (&argv[1][2], "%x", &pageno);
90  if (pageno >= 0 && pageno <= 255) onepage = 1;
91  break;
92  case 'h': /* print HTML table instead of text table */
93  html = 1;
94  break;
95  case 'l': /* print hyperlinks in HTML table */
96  links = 1;
97  html = 1;
98  break;
99  case 'P': /* Plane number specified */
100  plane = atoi(&argv[1][2]);
101  break;
102  }
103  }
104  }
105  /*
106  Initialize pagecount to account for noncharacters.
107  */
108  if (!onepage && plane==0) {
109  pagecount[0xfd] = 32; /* for U+FDD0..U+FDEF */
110  }
111  pagecount[0xff] = 2; /* for U+nnFFFE, U+nnFFFF */
112  /*
113  Read one line at a time from input. The format is:
114 
115  <hexpos>:<hexbitmap>
116 
117  where <hexpos> is the hexadecimal Unicode character position
118  in the range 00..FF and <hexbitmap> is the sequence of hexadecimal
119  digits of the character, laid out in a grid from left to right,
120  top to bottom. The character is assumed to be 16 rows of variable
121  width.
122  */
123  while (fgets (inbuf, MAXBUF-1, stdin) != NULL) {
124  sscanf (inbuf, "%X", &unichar);
125  page = unichar >> 8;
126  if (onepage) { /* only increment counter if this is page we want */
127  if (page == pageno) { /* character is in the page we want */
128  pagecount[unichar & 0xff]++; /* mark character as covered */
129  }
130  }
131  else { /* counting all characters in all pages */
132  if (plane == 0) {
133  /* Don't add in noncharacters (U+FDD0..U+FDEF, U+FFFE, U+FFFF) */
134  if (unichar < 0xfdd0 || (unichar > 0xfdef && unichar < 0xfffe))
135  pagecount[page]++;
136  }
137  else {
138  if ((page >> 8) == plane) { /* code point is in desired plane */
139  pagecount[page & 0xFF]++;
140  }
141  }
142  }
143  }
144  if (html) {
145  mkftable (plane, pagecount, links);
146  }
147  else { /* Otherwise, print plain text table */
148  if (plane > 0) fprintf (stdout, " ");
149  fprintf (stdout,
150  " 0 1 2 3 4 5 6 7 8 9 A B C D E F\n");
151  for (i=0; i<0x10; i++) {
152  fprintf (stdout,"%02X%X ", plane, i); /* row header */
153  for (j=0; j<0x10; j++) {
154  if (onepage) {
155  if (pagecount[i*16+j])
156  fprintf (stdout," * ");
157  else
158  fprintf (stdout," . ");
159  }
160  else {
161  fprintf (stdout, "%3X ", pagecount[i*16+j]);
162  }
163  }
164  fprintf (stdout,"\n");
165  }
166 
167  }
168  exit (0);
169 }
void mkftable(unsigned plane, int pagecount[256], int links)
Create an HTML table linked to PNG images.
Definition: unipagecount.c:185
#define MAXBUF
Maximum input line size - 1.
Definition: unipagecount.c:56
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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]planeThe Unicode plane, 0..17.
[in]pagecountArray with count of glyphs in each 256 code point range.
[in]links1 = generate hyperlinks, 0 = do not generate hyperlinks.

Definition at line 185 of file unipagecount.c.

186 {
187  int i, j;
188  int count;
189  unsigned bgcolor;
190 
191  printf ("<html>\n");
192  printf ("<body>\n");
193  printf ("<table border=\"3\" align=\"center\">\n");
194  printf (" <tr><th colspan=\"16\" bgcolor=\"#ffcc80\">");
195  printf ("GNU Unifont Glyphs<br>with Page Coverage for Plane %d<br>(Green=100%%, Red=0%%)</th></tr>\n", plane);
196  for (i = 0x0; i <= 0xF; i++) {
197  printf (" <tr>\n");
198  for (j = 0x0; j <= 0xF; j++) {
199  count = pagecount[ (i << 4) | j ];
200 
201  /* print link in cell if links == 1 */
202  if (plane != 0 || (i < 0xd || (i == 0xd && j < 0x8) || (i == 0xf && j > 0x8))) {
203  /* background color is light green if completely done */
204  if (count == 0x100) bgcolor = 0xccffcc;
205  /* otherwise background is a shade of yellow to orange to red */
206  else bgcolor = 0xff0000 | (count << 8) | (count >> 1);
207  printf (" <td bgcolor=\"#%06X\">", bgcolor);
208  if (plane == 0)
209  printf ("<a href=\"png/plane%02X/uni%02X%X%X.png\">%X%X</a>", plane, plane, i, j, i, j);
210  else
211  printf ("<a href=\"png/plane%02X/uni%02X%X%X.png\">%02X%X%X</a>", plane, plane, i, j, plane, i, j);
212  printf ("</td>\n");
213  }
214  else if (i == 0xd) {
215  if (j == 0x8) {
216  printf (" <td align=\"center\" colspan=\"8\" bgcolor=\"#cccccc\">");
217  printf ("<b>Surrogate Pairs</b>");
218  printf ("</td>\n");
219  } /* otherwise don't print anything more columns in this row */
220  }
221  else if (i == 0xe) {
222  if (j == 0x0) {
223  printf (" <td align=\"center\" colspan=\"16\" bgcolor=\"#cccccc\">");
224  printf ("<b>Private Use Area</b>");
225  printf ("</td>\n");
226  } /* otherwise don't print any more columns in this row */
227  }
228  else if (i == 0xf) {
229  if (j == 0x0) {
230  printf (" <td align=\"center\" colspan=\"9\" bgcolor=\"#cccccc\">");
231  printf ("<b>Private Use Area</b>");
232  printf ("</td>\n");
233  }
234  }
235  }
236  printf (" </tr>\n");
237  }
238  printf ("</table>\n");
239  printf ("</body>\n");
240  printf ("</html>\n");
241 
242  return;
243 }
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