80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
#include "test-tool.h"
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static const char *utf8_replace_character = "�";
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/*
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* Encodes (possibly incorrect) UTF-8 on <stdin> to <stdout>, to be embedded
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* in an XML file.
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*/
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int cmd__xml_encode(int argc, const char **argv)
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{
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unsigned char buf[1024], tmp[4], *tmp2 = NULL;
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ssize_t cur = 0, len = 1, remaining = 0;
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unsigned char ch;
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for (;;) {
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if (++cur == len) {
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len = xread(0, buf, sizeof(buf));
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if (!len)
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return 0;
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if (len < 0)
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die_errno("Could not read <stdin>");
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cur = 0;
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}
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ch = buf[cur];
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if (tmp2) {
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if ((ch & 0xc0) != 0x80) {
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fputs(utf8_replace_character, stdout);
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tmp2 = NULL;
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cur--;
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continue;
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}
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*tmp2 = ch;
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tmp2++;
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if (--remaining == 0) {
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fwrite(tmp, tmp2 - tmp, 1, stdout);
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tmp2 = NULL;
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}
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continue;
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}
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if (!(ch & 0x80)) {
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/* 0xxxxxxx */
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if (ch == '&')
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fputs("&", stdout);
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else if (ch == '\'')
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fputs("'", stdout);
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else if (ch == '"')
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fputs(""", stdout);
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else if (ch == '<')
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fputs("<", stdout);
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else if (ch == '>')
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fputs(">", stdout);
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else if (ch >= 0x20)
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fputc(ch, stdout);
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else if (ch == 0x09 || ch == 0x0a || ch == 0x0d)
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fprintf(stdout, "&#x%02x;", ch);
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else
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fputs(utf8_replace_character, stdout);
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} else if ((ch & 0xe0) == 0xc0) {
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/* 110XXXXx 10xxxxxx */
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tmp[0] = ch;
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remaining = 1;
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tmp2 = tmp + 1;
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} else if ((ch & 0xf0) == 0xe0) {
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/* 1110XXXX 10Xxxxxx 10xxxxxx */
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tmp[0] = ch;
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remaining = 2;
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tmp2 = tmp + 1;
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} else if ((ch & 0xf8) == 0xf0) {
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/* 11110XXX 10XXxxxx 10xxxxxx 10xxxxxx */
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tmp[0] = ch;
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remaining = 3;
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tmp2 = tmp + 1;
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} else
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fputs(utf8_replace_character, stdout);
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}
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return 0;
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}
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