63 lines
1.1 KiB
C
63 lines
1.1 KiB
C
#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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int
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main (int argc, char *argv[])
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{
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int n;
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char *line = NULL;
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size_t len = 0;
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for (n = 1; n < argc; ++n)
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{
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FILE *fp = fopen (argv[n], "r");
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if (fp == NULL)
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continue;
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while (! feof (fp))
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{
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ssize_t cnt = getline (&line, &len, fp);
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char *runp;
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if (cnt <= 0)
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break;
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runp = line;
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do
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{
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if (runp[0] == '<' && runp[1] == 'U' && isxdigit (runp[2])
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&& isxdigit (runp[3]) && isxdigit (runp[4])
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&& isxdigit (runp[5]) && runp[6] == '>')
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{
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unsigned int val = strtoul (runp + 2, NULL, 16);
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putchar ('<');
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if (val < 128)
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putchar (val);
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else if (val < 0x800)
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{
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putchar (0xc0 | (val >> 6));
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putchar (0x80 | (val & 0x3f));
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}
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else
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{
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putchar (0xe0 | (val >> 12));
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putchar (0x80 | ((val >> 6) & 0x3f));
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putchar (0x80 | (val & 0x3f));
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}
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putchar ('>');
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runp += 7;
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}
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else
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putchar (*runp++);
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}
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while (runp < &line[cnt]);
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}
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fclose (fp);
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}
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return 0;
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}
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