mirror of
https://gitlab.gnome.org/GNOME/libxml2.git
synced 2025-03-27 18:50:07 +03:00
encoding: Rework UTF-16 conversion functions
Optimize UTF-16 conversion functions. Avoid misaligned memory access. Don't rely on 'sizeof(short) == 2'. Check for XML_ENC_ERR_SPACE. Add some tests for UTF-16 conversion.
This commit is contained in:
Nick Wellnhofer
parent
bb8e81c788
commit
57e37dff4e
755
encoding.c
755
encoding.c
@ -277,451 +277,6 @@ static int
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xmlCharEncUconv(void *vctxt, const char *name, xmlCharEncConverter *conv);
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#endif
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/************************************************************************
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* *
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* Conversions To/From UTF8 encoding *
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* *
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************************************************************************/
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/*
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* UTF16LEToUTF8:
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* @out: a pointer to an array of bytes to store the result
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* @outlen: the length of @out
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* @inb: a pointer to an array of UTF-16LE passwd as a byte array
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* @inlenb: the length of @in in UTF-16LE chars
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*
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* Take a block of UTF-16LE ushorts in and try to convert it to an UTF-8
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* block of chars out. This function assumes the endian property
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* is the same between the native type of this machine and the
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* inputed one.
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*
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* Returns the number of bytes written or an XML_ENC_ERR code.
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*
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* The value of *inlen after return is the number of octets consumed
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* if the return value is positive, else unpredictable.
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*/
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static int
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UTF16LEToUTF8(unsigned char* out, int *outlen,
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const unsigned char* inb, int *inlenb)
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{
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unsigned char* outstart = out;
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const unsigned char* processed = inb;
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unsigned char* outend;
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unsigned short* in = (unsigned short *) (void *) inb;
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unsigned short* inend;
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unsigned int c, d, inlen;
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unsigned char *tmp;
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int bits;
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if (*outlen == 0) {
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*inlenb = 0;
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return(0);
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}
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outend = out + *outlen;
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if ((*inlenb % 2) == 1)
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(*inlenb)--;
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inlen = *inlenb / 2;
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inend = in + inlen;
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while ((in < inend) && (out - outstart + 5 < *outlen)) {
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if (xmlLittleEndian) {
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c= *in++;
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} else {
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tmp = (unsigned char *) in;
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c = *tmp++;
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c = c | (*tmp << 8);
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in++;
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}
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if ((c & 0xFC00) == 0xD800) { /* surrogates */
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if (in >= inend) { /* handle split mutli-byte characters */
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break;
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}
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if (xmlLittleEndian) {
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d = *in++;
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} else {
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tmp = (unsigned char *) in;
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d = *tmp++;
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d = d | (*tmp << 8);
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in++;
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}
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if ((d & 0xFC00) == 0xDC00) {
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c &= 0x03FF;
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c <<= 10;
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c |= d & 0x03FF;
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c += 0x10000;
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}
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else {
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*outlen = out - outstart;
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*inlenb = processed - inb;
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return(XML_ENC_ERR_INPUT);
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}
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}
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/* assertion: c is a single UTF-4 value */
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if (out >= outend)
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break;
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if (c < 0x80) { *out++= c; bits= -6; }
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else if (c < 0x800) { *out++= ((c >> 6) & 0x1F) | 0xC0; bits= 0; }
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else if (c < 0x10000) { *out++= ((c >> 12) & 0x0F) | 0xE0; bits= 6; }
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else { *out++= ((c >> 18) & 0x07) | 0xF0; bits= 12; }
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for ( ; bits >= 0; bits-= 6) {
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if (out >= outend)
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break;
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*out++= ((c >> bits) & 0x3F) | 0x80;
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}
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processed = (const unsigned char*) in;
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}
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*outlen = out - outstart;
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*inlenb = processed - inb;
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return(*outlen);
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}
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#ifdef LIBXML_OUTPUT_ENABLED
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/**
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* UTF8ToUTF16LE:
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* @outb: a pointer to an array of bytes to store the result
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* @outlen: the length of @outb
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* @in: a pointer to an array of UTF-8 chars
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* @inlen: the length of @in
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*
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* Take a block of UTF-8 chars in and try to convert it to an UTF-16LE
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* block of chars out.
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*
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* Returns the number of bytes written or an XML_ENC_ERR code.
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*/
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static int
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UTF8ToUTF16LE(unsigned char* outb, int *outlen,
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const unsigned char* in, int *inlen)
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{
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unsigned short* out = (unsigned short *) (void *) outb;
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const unsigned char* processed = in;
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const unsigned char *const instart = in;
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unsigned short* outstart= out;
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unsigned short* outend;
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const unsigned char* inend;
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unsigned int c, d;
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int trailing;
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unsigned char *tmp;
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unsigned short tmp1, tmp2;
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/* UTF16LE encoding has no BOM */
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if ((out == NULL) || (outlen == NULL) || (inlen == NULL))
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return(XML_ENC_ERR_INTERNAL);
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if (in == NULL) {
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*outlen = 0;
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*inlen = 0;
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return(0);
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}
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inend= in + *inlen;
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outend = out + (*outlen / 2);
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while (in < inend) {
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d= *in++;
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if (d < 0x80) { c= d; trailing= 0; }
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else if (d < 0xC0) {
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/* trailing byte in leading position */
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*outlen = (out - outstart) * 2;
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*inlen = processed - instart;
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return(XML_ENC_ERR_INPUT);
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} else if (d < 0xE0) { c= d & 0x1F; trailing= 1; }
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else if (d < 0xF0) { c= d & 0x0F; trailing= 2; }
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else if (d < 0xF8) { c= d & 0x07; trailing= 3; }
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else {
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/* no chance for this in UTF-16 */
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*outlen = (out - outstart) * 2;
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*inlen = processed - instart;
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return(XML_ENC_ERR_INPUT);
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}
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if (inend - in < trailing) {
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break;
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}
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for ( ; trailing; trailing--) {
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if ((in >= inend) || (((d= *in++) & 0xC0) != 0x80))
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break;
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c <<= 6;
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c |= d & 0x3F;
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}
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/* assertion: c is a single UTF-4 value */
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if (c < 0x10000) {
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if (out >= outend)
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break;
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if (xmlLittleEndian) {
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*out++ = c;
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} else {
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tmp = (unsigned char *) out;
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*tmp = (unsigned char) c; /* Explicit truncation */
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*(tmp + 1) = c >> 8 ;
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out++;
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}
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}
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else if (c < 0x110000) {
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if (out+1 >= outend)
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break;
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c -= 0x10000;
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if (xmlLittleEndian) {
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*out++ = 0xD800 | (c >> 10);
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*out++ = 0xDC00 | (c & 0x03FF);
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} else {
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tmp1 = 0xD800 | (c >> 10);
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tmp = (unsigned char *) out;
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*tmp = (unsigned char) tmp1; /* Explicit truncation */
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*(tmp + 1) = tmp1 >> 8;
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out++;
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tmp2 = 0xDC00 | (c & 0x03FF);
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tmp = (unsigned char *) out;
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*tmp = (unsigned char) tmp2; /* Explicit truncation */
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*(tmp + 1) = tmp2 >> 8;
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out++;
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}
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}
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else
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break;
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processed = in;
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}
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*outlen = (out - outstart) * 2;
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*inlen = processed - instart;
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return(*outlen);
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}
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/**
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* UTF8ToUTF16:
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* @outb: a pointer to an array of bytes to store the result
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* @outlen: the length of @outb
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* @in: a pointer to an array of UTF-8 chars
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* @inlen: the length of @in
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*
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* Take a block of UTF-8 chars in and try to convert it to an UTF-16
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* block of chars out.
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*
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* Returns the number of bytes written or an XML_ENC_ERR code.
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*/
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static int
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UTF8ToUTF16(unsigned char* outb, int *outlen,
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const unsigned char* in, int *inlen)
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{
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if (in == NULL) {
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/*
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* initialization, add the Byte Order Mark for UTF-16LE
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*/
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if (*outlen >= 2) {
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outb[0] = 0xFF;
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outb[1] = 0xFE;
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*outlen = 2;
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*inlen = 0;
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return(2);
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}
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*outlen = 0;
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*inlen = 0;
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return(0);
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}
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return (UTF8ToUTF16LE(outb, outlen, in, inlen));
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}
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#endif /* LIBXML_OUTPUT_ENABLED */
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/**
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* UTF16BEToUTF8:
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* @out: a pointer to an array of bytes to store the result
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* @outlen: the length of @out
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* @inb: a pointer to an array of UTF-16 passed as a byte array
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* @inlenb: the length of @in in UTF-16 chars
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*
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* Take a block of UTF-16 ushorts in and try to convert it to an UTF-8
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* block of chars out. This function assumes the endian property
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* is the same between the native type of this machine and the
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* inputed one.
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*
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* Returns the number of bytes written or an XML_ENC_ERR code.
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*
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* The value of *inlen after return is the number of octets consumed
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* if the return value is positive, else unpredictable.
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*/
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static int
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UTF16BEToUTF8(unsigned char* out, int *outlen,
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const unsigned char* inb, int *inlenb)
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{
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unsigned char* outstart = out;
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const unsigned char* processed = inb;
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unsigned char* outend;
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unsigned short* in = (unsigned short *) (void *) inb;
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unsigned short* inend;
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unsigned int c, d, inlen;
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unsigned char *tmp;
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int bits;
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if (*outlen == 0) {
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*inlenb = 0;
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return(0);
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}
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outend = out + *outlen;
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if ((*inlenb % 2) == 1)
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(*inlenb)--;
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inlen = *inlenb / 2;
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inend= in + inlen;
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while ((in < inend) && (out - outstart + 5 < *outlen)) {
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if (xmlLittleEndian) {
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tmp = (unsigned char *) in;
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c = *tmp++;
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c = (c << 8) | *tmp;
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in++;
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} else {
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c= *in++;
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}
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if ((c & 0xFC00) == 0xD800) { /* surrogates */
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if (in >= inend) { /* handle split mutli-byte characters */
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break;
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}
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if (xmlLittleEndian) {
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tmp = (unsigned char *) in;
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d = *tmp++;
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d = (d << 8) | *tmp;
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in++;
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} else {
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d= *in++;
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}
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if ((d & 0xFC00) == 0xDC00) {
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c &= 0x03FF;
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c <<= 10;
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c |= d & 0x03FF;
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c += 0x10000;
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}
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else {
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*outlen = out - outstart;
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*inlenb = processed - inb;
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return(XML_ENC_ERR_INPUT);
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}
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}
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/* assertion: c is a single UTF-4 value */
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if (out >= outend)
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break;
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if (c < 0x80) { *out++= c; bits= -6; }
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else if (c < 0x800) { *out++= ((c >> 6) & 0x1F) | 0xC0; bits= 0; }
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else if (c < 0x10000) { *out++= ((c >> 12) & 0x0F) | 0xE0; bits= 6; }
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else { *out++= ((c >> 18) & 0x07) | 0xF0; bits= 12; }
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for ( ; bits >= 0; bits-= 6) {
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if (out >= outend)
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break;
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*out++= ((c >> bits) & 0x3F) | 0x80;
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}
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processed = (const unsigned char*) in;
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}
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*outlen = out - outstart;
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*inlenb = processed - inb;
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return(*outlen);
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}
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#ifdef LIBXML_OUTPUT_ENABLED
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/**
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* UTF8ToUTF16BE:
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* @outb: a pointer to an array of bytes to store the result
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* @outlen: the length of @outb
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* @in: a pointer to an array of UTF-8 chars
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* @inlen: the length of @in
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*
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* Take a block of UTF-8 chars in and try to convert it to an UTF-16BE
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* block of chars out.
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*
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* Returns the number of bytes written or an XML_ENC_ERR code.
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*/
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static int
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UTF8ToUTF16BE(unsigned char* outb, int *outlen,
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const unsigned char* in, int *inlen)
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{
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unsigned short* out = (unsigned short *) (void *) outb;
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const unsigned char* processed = in;
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const unsigned char *const instart = in;
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unsigned short* outstart= out;
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unsigned short* outend;
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const unsigned char* inend;
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unsigned int c, d;
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int trailing;
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unsigned char *tmp;
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unsigned short tmp1, tmp2;
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/* UTF-16BE has no BOM */
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if ((outb == NULL) || (outlen == NULL) || (inlen == NULL))
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return(XML_ENC_ERR_INTERNAL);
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if (in == NULL) {
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*outlen = 0;
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*inlen = 0;
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return(0);
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}
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inend= in + *inlen;
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outend = out + (*outlen / 2);
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while (in < inend) {
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d= *in++;
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if (d < 0x80) { c= d; trailing= 0; }
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else if (d < 0xC0) {
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/* trailing byte in leading position */
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*outlen = out - outstart;
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*inlen = processed - instart;
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return(XML_ENC_ERR_INPUT);
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} else if (d < 0xE0) { c= d & 0x1F; trailing= 1; }
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else if (d < 0xF0) { c= d & 0x0F; trailing= 2; }
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else if (d < 0xF8) { c= d & 0x07; trailing= 3; }
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else {
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/* no chance for this in UTF-16 */
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*outlen = out - outstart;
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*inlen = processed - instart;
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return(XML_ENC_ERR_INPUT);
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}
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if (inend - in < trailing) {
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break;
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}
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for ( ; trailing; trailing--) {
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if ((in >= inend) || (((d= *in++) & 0xC0) != 0x80)) break;
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c <<= 6;
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c |= d & 0x3F;
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}
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/* assertion: c is a single UTF-4 value */
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if (c < 0x10000) {
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if (out >= outend) break;
|
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if (xmlLittleEndian) {
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tmp = (unsigned char *) out;
|
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*tmp = c >> 8;
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*(tmp + 1) = (unsigned char) c; /* Explicit truncation */
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out++;
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} else {
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*out++ = c;
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}
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}
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else if (c < 0x110000) {
|
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if (out+1 >= outend) break;
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c -= 0x10000;
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if (xmlLittleEndian) {
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tmp1 = 0xD800 | (c >> 10);
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tmp = (unsigned char *) out;
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*tmp = tmp1 >> 8;
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*(tmp + 1) = (unsigned char) tmp1; /* Explicit truncation */
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out++;
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tmp2 = 0xDC00 | (c & 0x03FF);
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tmp = (unsigned char *) out;
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*tmp = tmp2 >> 8;
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*(tmp + 1) = (unsigned char) tmp2; /* Explicit truncation */
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out++;
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} else {
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*out++ = 0xD800 | (c >> 10);
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*out++ = 0xDC00 | (c & 0x03FF);
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}
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}
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else
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break;
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processed = in;
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}
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*outlen = (out - outstart) * 2;
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*inlen = processed - instart;
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return(*outlen);
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}
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#endif /* LIBXML_OUTPUT_ENABLED */
|
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|
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/************************************************************************
|
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* *
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* Generic encoding handling routines *
|
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@ -2556,6 +2111,316 @@ done:
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}
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#endif /* LIBXML_OUTPUT_ENABLED */
|
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|
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static int
|
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UTF16LEToUTF8(unsigned char *out, int *outlen,
|
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const unsigned char *in, int *inlen)
|
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{
|
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const unsigned char *instart = in;
|
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const unsigned char *inend = in + (*inlen & ~1);
|
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unsigned char *outstart = out;
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unsigned char *outend = out + *outlen;
|
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unsigned c, d;
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int ret = XML_ENC_ERR_SPACE;
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|
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while (in < inend) {
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c = in[0] | (in[1] << 8);
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|
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if (c < 0x80) {
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if (out >= outend)
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goto done;
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out[0] = c;
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in += 2;
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out += 1;
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} else if (c < 0x800) {
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if (outend - out < 2)
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goto done;
|
||||
out[0] = (c >> 6) | 0xC0;
|
||||
out[1] = (c & 0x3F) | 0x80;
|
||||
in += 2;
|
||||
out += 2;
|
||||
} else if ((c & 0xF800) != 0xD800) {
|
||||
if (outend - out < 3)
|
||||
goto done;
|
||||
out[0] = (c >> 12) | 0xE0;
|
||||
out[1] = ((c >> 6) & 0x3F) | 0x80;
|
||||
out[2] = (c & 0x3F) | 0x80;
|
||||
in += 2;
|
||||
out += 3;
|
||||
} else {
|
||||
/* Surrogate pair */
|
||||
if ((c & 0xFC00) != 0xD800) {
|
||||
ret = XML_ENC_ERR_INPUT;
|
||||
goto done;
|
||||
}
|
||||
if (inend - in < 4)
|
||||
break;
|
||||
d = in[2] | (in[3] << 8);
|
||||
if ((d & 0xFC00) != 0xDC00) {
|
||||
ret = XML_ENC_ERR_INPUT;
|
||||
goto done;
|
||||
}
|
||||
if (outend - out < 4)
|
||||
goto done;
|
||||
c = (c << 10) + d - ((0xD800 << 10) + 0xDC00 - 0x10000);
|
||||
out[0] = (c >> 18) | 0xF0;
|
||||
out[1] = ((c >> 12) & 0x3F) | 0x80;
|
||||
out[2] = ((c >> 6) & 0x3F) | 0x80;
|
||||
out[3] = (c & 0x3F) | 0x80;
|
||||
in += 4;
|
||||
out += 4;
|
||||
}
|
||||
}
|
||||
|
||||
ret = out - outstart;
|
||||
|
||||
done:
|
||||
*outlen = out - outstart;
|
||||
*inlen = in - instart;
|
||||
return(ret);
|
||||
}
|
||||
|
||||
#ifdef LIBXML_OUTPUT_ENABLED
|
||||
static int
|
||||
UTF8ToUTF16LE(unsigned char *out, int *outlen,
|
||||
const unsigned char *in, int *inlen)
|
||||
{
|
||||
const unsigned char *instart = in;
|
||||
const unsigned char *inend;
|
||||
unsigned char *outstart = out;
|
||||
unsigned char *outend;
|
||||
unsigned c, d;
|
||||
int ret = XML_ENC_ERR_SPACE;
|
||||
|
||||
/* UTF16LE encoding has no BOM */
|
||||
if ((out == NULL) || (outlen == NULL) || (inlen == NULL))
|
||||
return(XML_ENC_ERR_INTERNAL);
|
||||
if (in == NULL) {
|
||||
*outlen = 0;
|
||||
*inlen = 0;
|
||||
return(0);
|
||||
}
|
||||
inend = in + *inlen;
|
||||
outend = out + (*outlen & ~1);
|
||||
while (in < inend) {
|
||||
if (out >= outend)
|
||||
goto done;
|
||||
|
||||
c = in[0];
|
||||
|
||||
if (c < 0x80) {
|
||||
out[0] = c;
|
||||
out[1] = 0;
|
||||
in += 1;
|
||||
out += 2;
|
||||
} else if (c < 0xE0) {
|
||||
if (inend - in < 2)
|
||||
break;
|
||||
c = ((c & 0x1F) << 6) | (in[1] & 0x3F);
|
||||
out[0] = c & 0xFF;
|
||||
out[1] = c >> 8;
|
||||
in += 2;
|
||||
out += 2;
|
||||
} else if (c < 0xF0) {
|
||||
if (inend - in < 3)
|
||||
break;
|
||||
c = ((c & 0x0F) << 12) | ((in[1] & 0x3F) << 6) | (in[2] & 0x3F);
|
||||
out[0] = c & 0xFF;
|
||||
out[1] = c >> 8;
|
||||
in += 3;
|
||||
out += 2;
|
||||
} else { /* c >= 0xF0 */
|
||||
if (inend - in < 4)
|
||||
break;
|
||||
if (outend - out < 4)
|
||||
goto done;
|
||||
c = ((c & 0x0F) << 18) | ((in[1] & 0x3F) << 12) |
|
||||
((in[2] & 0x3F) << 6) | (in[3] & 0x3F);
|
||||
c -= 0x10000;
|
||||
d = (c & 0x03FF) | 0xDC00;
|
||||
c = (c >> 10) | 0xD800;
|
||||
out[0] = c & 0xFF;
|
||||
out[1] = c >> 8;
|
||||
out[2] = d & 0xFF;
|
||||
out[3] = d >> 8;
|
||||
in += 4;
|
||||
out += 4;
|
||||
}
|
||||
}
|
||||
|
||||
ret = out - outstart;
|
||||
|
||||
done:
|
||||
*outlen = out - outstart;
|
||||
*inlen = in - instart;
|
||||
return(ret);
|
||||
}
|
||||
|
||||
static int
|
||||
UTF8ToUTF16(unsigned char* outb, int *outlen,
|
||||
const unsigned char* in, int *inlen)
|
||||
{
|
||||
if (in == NULL) {
|
||||
/*
|
||||
* initialization, add the Byte Order Mark for UTF-16LE
|
||||
*/
|
||||
if (*outlen >= 2) {
|
||||
outb[0] = 0xFF;
|
||||
outb[1] = 0xFE;
|
||||
*outlen = 2;
|
||||
*inlen = 0;
|
||||
return(2);
|
||||
}
|
||||
*outlen = 0;
|
||||
*inlen = 0;
|
||||
return(0);
|
||||
}
|
||||
return (UTF8ToUTF16LE(outb, outlen, in, inlen));
|
||||
}
|
||||
#endif /* LIBXML_OUTPUT_ENABLED */
|
||||
|
||||
static int
|
||||
UTF16BEToUTF8(unsigned char *out, int *outlen,
|
||||
const unsigned char *in, int *inlen)
|
||||
{
|
||||
const unsigned char *instart = in;
|
||||
const unsigned char *inend = in + (*inlen & ~1);
|
||||
unsigned char *outstart = out;
|
||||
unsigned char *outend = out + *outlen;
|
||||
unsigned c, d;
|
||||
int ret = XML_ENC_ERR_SPACE;
|
||||
|
||||
while (in < inend) {
|
||||
c = (in[0] << 8) | in[1];
|
||||
|
||||
if (c < 0x80) {
|
||||
if (out >= outend)
|
||||
goto done;
|
||||
out[0] = c;
|
||||
in += 2;
|
||||
out += 1;
|
||||
} else if (c < 0x800) {
|
||||
if (outend - out < 2)
|
||||
goto done;
|
||||
out[0] = (c >> 6) | 0xC0;
|
||||
out[1] = (c & 0x3F) | 0x80;
|
||||
in += 2;
|
||||
out += 2;
|
||||
} else if ((c & 0xF800) != 0xD800) {
|
||||
if (outend - out < 3)
|
||||
goto done;
|
||||
out[0] = (c >> 12) | 0xE0;
|
||||
out[1] = ((c >> 6) & 0x3F) | 0x80;
|
||||
out[2] = (c & 0x3F) | 0x80;
|
||||
in += 2;
|
||||
out += 3;
|
||||
} else {
|
||||
/* Surrogate pair */
|
||||
if ((c & 0xFC00) != 0xD800) {
|
||||
ret = XML_ENC_ERR_INPUT;
|
||||
goto done;
|
||||
}
|
||||
if (inend - in < 4)
|
||||
break;
|
||||
d = (in[2] << 8) | in[3];
|
||||
if ((d & 0xFC00) != 0xDC00) {
|
||||
ret = XML_ENC_ERR_INPUT;
|
||||
goto done;
|
||||
}
|
||||
if (outend - out < 4)
|
||||
goto done;
|
||||
c = (c << 10) + d - ((0xD800 << 10) + 0xDC00 - 0x10000);
|
||||
out[0] = (c >> 18) | 0xF0;
|
||||
out[1] = ((c >> 12) & 0x3F) | 0x80;
|
||||
out[2] = ((c >> 6) & 0x3F) | 0x80;
|
||||
out[3] = (c & 0x3F) | 0x80;
|
||||
in += 4;
|
||||
out += 4;
|
||||
}
|
||||
}
|
||||
|
||||
ret = out - outstart;
|
||||
|
||||
done:
|
||||
*outlen = out - outstart;
|
||||
*inlen = in - instart;
|
||||
return(ret);
|
||||
}
|
||||
|
||||
#ifdef LIBXML_OUTPUT_ENABLED
|
||||
static int
|
||||
UTF8ToUTF16BE(unsigned char *out, int *outlen,
|
||||
const unsigned char *in, int *inlen)
|
||||
{
|
||||
const unsigned char *instart = in;
|
||||
const unsigned char *inend;
|
||||
unsigned char *outstart = out;
|
||||
unsigned char *outend;
|
||||
unsigned c, d;
|
||||
int ret = XML_ENC_ERR_SPACE;
|
||||
|
||||
/* UTF-16BE has no BOM */
|
||||
if ((out == NULL) || (outlen == NULL) || (inlen == NULL)) return(-1);
|
||||
if (in == NULL) {
|
||||
*outlen = 0;
|
||||
*inlen = 0;
|
||||
return(0);
|
||||
}
|
||||
inend = in + *inlen;
|
||||
outend = out + (*outlen & ~1);
|
||||
while (in < inend) {
|
||||
if (out >= outend)
|
||||
goto done;
|
||||
c = in[0];
|
||||
|
||||
if (c < 0x80) {
|
||||
out[0] = 0;
|
||||
out[1] = c;
|
||||
in += 1;
|
||||
out += 2;
|
||||
} else if (c < 0xE0) {
|
||||
if (inend - in < 2)
|
||||
break;
|
||||
c = ((c & 0x1F) << 6) | (in[1] & 0x3F);
|
||||
out[0] = c >> 8;
|
||||
out[1] = c & 0xFF;
|
||||
in += 2;
|
||||
out += 2;
|
||||
} else if (c < 0xF0) {
|
||||
if (inend - in < 3)
|
||||
break;
|
||||
c = ((c & 0x0F) << 12) | ((in[1] & 0x3F) << 6) | (in[2] & 0x3F);
|
||||
out[0] = c >> 8;
|
||||
out[1] = c & 0xFF;
|
||||
in += 3;
|
||||
out += 2;
|
||||
} else { /* c >= 0xF0 */
|
||||
if (inend - in < 4)
|
||||
break;
|
||||
if (outend - out < 4)
|
||||
goto done;
|
||||
c = ((c & 0x0F) << 18) | ((in[1] & 0x3F) << 12) |
|
||||
((in[2] & 0x3F) << 6) | (in[3] & 0x3F);
|
||||
c -= 0x10000;
|
||||
d = (c & 0x03FF) | 0xDC00;
|
||||
c = (c >> 10) | 0xD800;
|
||||
out[0] = c >> 8;
|
||||
out[1] = c & 0xFF;
|
||||
out[2] = d >> 8;
|
||||
out[3] = d & 0xFF;
|
||||
in += 4;
|
||||
out += 4;
|
||||
}
|
||||
}
|
||||
|
||||
ret = out - outstart;
|
||||
|
||||
done:
|
||||
*outlen = out - outstart;
|
||||
*inlen = in - instart;
|
||||
return(ret);
|
||||
}
|
||||
#endif /* LIBXML_OUTPUT_ENABLED */
|
||||
|
||||
#if !defined(LIBXML_ICONV_ENABLED) && !defined(LIBXML_ICU_ENABLED)
|
||||
#ifdef LIBXML_ISO8859X_ENABLED
|
||||
|
||||
|
||||
105
testchar.c
105
testchar.c
@ -880,8 +880,110 @@ error:
|
||||
|
||||
#endif
|
||||
|
||||
int main(void) {
|
||||
static void
|
||||
bufDump(const char *prefix, const xmlChar *content, int len) {
|
||||
int i;
|
||||
|
||||
fprintf(stderr, "%s", prefix);
|
||||
for (i = 0; i < len; i++) {
|
||||
fprintf(stderr, " %02X", content[i]);
|
||||
}
|
||||
fprintf(stderr, "\n");
|
||||
}
|
||||
|
||||
static int
|
||||
bufCompare(xmlBufferPtr got, const xmlChar *expectContent, int expectLen) {
|
||||
const xmlChar *gotContent = xmlBufferContent(got);
|
||||
int gotLen = xmlBufferLength(got);
|
||||
|
||||
if ((gotLen == expectLen) &&
|
||||
(memcmp(gotContent, expectContent, gotLen) == 0))
|
||||
return(0);
|
||||
|
||||
bufDump("got: ", gotContent, gotLen);
|
||||
bufDump("expected:", expectContent, expectLen);
|
||||
|
||||
return(-1);
|
||||
}
|
||||
|
||||
static int
|
||||
testEncHandler(xmlCharEncodingHandlerPtr handler, const xmlChar *dec,
|
||||
int decSize, const xmlChar *enc, int encSize) {
|
||||
xmlBufferPtr encBuf = xmlBufferCreate();
|
||||
xmlBufferPtr decBuf = xmlBufferCreate();
|
||||
int ret = 0;
|
||||
|
||||
xmlBufferAdd(encBuf, enc, encSize);
|
||||
xmlCharEncInFunc(handler, decBuf, encBuf);
|
||||
if (bufCompare(decBuf, dec, decSize) != 0) {
|
||||
fprintf(stderr, "Decoding %s failed\n", handler->name);
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
#ifdef LIBXML_OUTPUT_ENABLED
|
||||
xmlBufferEmpty(decBuf);
|
||||
xmlBufferAdd(decBuf, dec, decSize);
|
||||
xmlCharEncOutFunc(handler, encBuf, decBuf);
|
||||
if (bufCompare(encBuf, enc, encSize) != 0) {
|
||||
fprintf(stderr, "Encoding %s failed\n", handler->name);
|
||||
ret = -1;
|
||||
}
|
||||
#endif
|
||||
|
||||
xmlBufferFree(decBuf);
|
||||
xmlBufferFree(encBuf);
|
||||
return(ret);
|
||||
}
|
||||
|
||||
static int
|
||||
testUTF16(void) {
|
||||
static const xmlChar utf8[] =
|
||||
"\x01"
|
||||
"\x7F"
|
||||
"\xC2\x80"
|
||||
"\xDF\xBF"
|
||||
"\xE0\xA0\x80"
|
||||
"\xEF\xBF\xBF"
|
||||
"\xF0\x90\x80\x80"
|
||||
"\xF4\x8F\xBF\xBF";
|
||||
static const xmlChar utf16LE[] =
|
||||
"\x01\x00"
|
||||
"\x7F\x00"
|
||||
"\x80\x00"
|
||||
"\xFF\x07"
|
||||
"\x00\x08"
|
||||
"\xFF\xFF"
|
||||
"\x00\xD8\x00\xDC"
|
||||
"\xFF\xDB\xFF\xDF";
|
||||
static const xmlChar utf16BE[] =
|
||||
"\x00\x01"
|
||||
"\x00\x7F"
|
||||
"\x00\x80"
|
||||
"\x07\xFF"
|
||||
"\x08\x00"
|
||||
"\xFF\xFF"
|
||||
"\xD8\x00\xDC\x00"
|
||||
"\xDB\xFF\xDF\xFF";
|
||||
|
||||
xmlCharEncodingHandlerPtr handler16LE, handler16BE;
|
||||
int ret = 0;
|
||||
|
||||
handler16LE = xmlFindCharEncodingHandler("UTF-16LE");
|
||||
handler16BE = xmlFindCharEncodingHandler("UTF-16BE");
|
||||
|
||||
if (testEncHandler(handler16LE,
|
||||
utf8, sizeof(utf8) - 1,
|
||||
utf16LE, sizeof(utf16LE) - 1) != 0)
|
||||
ret = -1;
|
||||
if (testEncHandler(handler16BE,
|
||||
utf8, sizeof(utf8) - 1,
|
||||
utf16BE, sizeof(utf16BE) - 1) != 0)
|
||||
ret = -1;
|
||||
|
||||
return(ret);
|
||||
}
|
||||
|
||||
int main(void) {
|
||||
int ret = 0;
|
||||
|
||||
/*
|
||||
@ -907,6 +1009,7 @@ int main(void) {
|
||||
ret += testUserEncodingPush();
|
||||
ret += testUTF8Chunks();
|
||||
#endif
|
||||
ret += testUTF16();
|
||||
|
||||
/*
|
||||
* Cleanup function for the XML library.
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user