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/* cmapclean.c -- parse a CMap file and write it back out */
#include <stdio.h>
#include <string.h>
#include "mupdf/pdf.h"
struct cidrange {
unsigned int lo, hi, v;
};
static int cmpcidrange(const void *va, const void *vb)
{
unsigned int a = ((const struct cidrange *)va)->lo;
unsigned int b = ((const struct cidrange *)vb)->lo;
return a < b ? -1 : a > b ? 1 : 0;
}
static void pc(unsigned int c)
{
if (c <= 0xff) printf("<%02x>", c);
else if (c <= 0xffff) printf("<%04x>", c);
else if (c <= 0xffffff) printf("<%06x>", c);
else printf("<%010x>", c);
}
int
main(int argc, char **argv)
{
fz_context *ctx;
fz_stream *fi;
pdf_cmap *cmap;
int k, m, n, i;
struct cidrange *r;
if (argc != 2)
{
fprintf(stderr, "usage: cmapclean input.cmap\n");
return 1;
}
ctx = fz_new_context(NULL, NULL, FZ_STORE_UNLIMITED);
if (!ctx)
{
fprintf(stderr, "cannot initialise context\n");
return 1;
}
fi = fz_open_file(ctx, argv[1]);
cmap = pdf_load_cmap(ctx, fi);
fz_drop_stream(ctx, fi);
printf("begincmap\n");
printf("/CMapName /%s def\n", cmap->cmap_name);
printf("/WMode %d def\n", cmap->wmode);
if (cmap->usecmap_name[0])
printf("/%s usecmap\n", cmap->usecmap_name);
if (cmap->codespace_len)
{
printf("begincodespacerange\n");
for (k = 0; k < cmap->codespace_len; k++)
{
if (cmap->codespace[k].n == 1)
printf("<%02x> <%02x>\n", cmap->codespace[k].low, cmap->codespace[k].high);
else if (cmap->codespace[k].n == 2)
printf("<%04x> <%04x>\n", cmap->codespace[k].low, cmap->codespace[k].high);
else if (cmap->codespace[k].n == 3)
printf("<%06x> <%06x>\n", cmap->codespace[k].low, cmap->codespace[k].high);
else if (cmap->codespace[k].n == 4)
printf("<%08x> <%08x>\n", cmap->codespace[k].low, cmap->codespace[k].high);
else
printf("<%x> <%x>\n", cmap->codespace[k].low, cmap->codespace[k].high);
}
printf("endcodespacerange\n");
}
n = cmap->rlen + cmap->xlen;
r = fz_malloc(ctx, n * sizeof *r);
i = 0;
for (k = 0; k < cmap->rlen; k++) {
r[i].lo = cmap->ranges[k].low;
r[i].hi = cmap->ranges[k].high;
r[i].v = cmap->ranges[k].out;
++i;
}
for (k = 0; k < cmap->xlen; k++) {
r[i].lo = cmap->xranges[k].low;
r[i].hi = cmap->xranges[k].high;
r[i].v = cmap->xranges[k].out;
++i;
}
qsort(r, n, sizeof *r, cmpcidrange);
if (n)
{
printf("begincidchar\n");
for (i = 0; i < n; ++i)
{
for (k = r[i].lo, m = r[i].v; k <= r[i].hi; ++k, ++m)
{
pc(k);
printf("%u\n", m);
}
}
printf("endcidchar\n");
}
#if 0
if (cmap->mlen > 0)
{
printf("beginbfchar\n");
for (k = 0; k < cmap->mlen; k++)
{
pc(cmap->mranges[k].low);
printf("<");
for (m = 0; m < cmap->mranges[k].len; ++m)
printf("%04x", cmap->mranges[k].out[m]);
printf(">\n");
}
printf("endbfchar\n");
}
#endif
printf("endcmap\n");
fz_drop_context(ctx);
return 0;
}
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