ENH: Initial import of expat

1 files changed, 98 insertions, 0 deletions

diff --git a/Utilities/cmexpat/xmltok_ns.c b/Utilities/cmexpat/xmltok_ns.c
new file mode 100644
index 0000000..fa78adf
--- /dev/null
+++ b/Utilities/cmexpat/xmltok_ns.c
@@ -0,0 +1,98 @@
+const ENCODING *NS(XmlGetUtf8InternalEncoding)(void)
+{
+  return &ns(internal_utf8_encoding).enc;
+}
+
+const ENCODING *NS(XmlGetUtf16InternalEncoding)(void)
+{
+#if XML_BYTE_ORDER == 12
+  return &ns(internal_little2_encoding).enc;
+#elif XML_BYTE_ORDER == 21
+  return &ns(internal_big2_encoding).enc;
+#else
+  const short n = 1;
+  return *(const char *)&n ? &ns(internal_little2_encoding).enc : &ns(internal_big2_encoding).enc;
+#endif
+}
+
+static
+const ENCODING *NS(encodings)[] = {
+  &ns(latin1_encoding).enc,
+  &ns(ascii_encoding).enc,
+  &ns(utf8_encoding).enc,
+  &ns(big2_encoding).enc,
+  &ns(big2_encoding).enc,
+  &ns(little2_encoding).enc,
+  &ns(utf8_encoding).enc /* NO_ENC */
+};
+
+static
+int NS(initScanProlog)(const ENCODING *enc, const char *ptr, const char *end,
+                       const char **nextTokPtr)
+{
+  return initScan(NS(encodings), (const INIT_ENCODING *)enc, XML_PROLOG_STATE, ptr, end, nextTokPtr);
+}
+
+static
+int NS(initScanContent)(const ENCODING *enc, const char *ptr, const char *end,
+                       const char **nextTokPtr)
+{
+  return initScan(NS(encodings), (const INIT_ENCODING *)enc, XML_CONTENT_STATE, ptr, end, nextTokPtr);
+}
+
+int NS(XmlInitEncoding)(INIT_ENCODING *p, const ENCODING **encPtr, const char *name)
+{
+  int i = getEncodingIndex(name);
+  if (i == UNKNOWN_ENC)
+    return 0;
+  SET_INIT_ENC_INDEX(p, i);
+  p->initEnc.scanners[XML_PROLOG_STATE] = NS(initScanProlog);
+  p->initEnc.scanners[XML_CONTENT_STATE] = NS(initScanContent);
+  p->initEnc.updatePosition = initUpdatePosition;
+  p->encPtr = encPtr;
+  *encPtr = &(p->initEnc);
+  return 1;
+}
+
+static
+const ENCODING *NS(findEncoding)(const ENCODING *enc, const char *ptr, const char *end)
+{
+#define ENCODING_MAX 128
+  char buf[ENCODING_MAX];
+  char *p = buf;
+  int i;
+  XmlUtf8Convert(enc, &ptr, end, &p, p + ENCODING_MAX - 1);
+  if (ptr != end)
+    return 0;
+  *p = 0;
+  if (streqci(buf, KW_UTF_16) && enc->minBytesPerChar == 2)
+    return enc;
+  i = getEncodingIndex(buf);
+  if (i == UNKNOWN_ENC)
+    return 0;
+  return NS(encodings)[i];
+}
+
+int NS(XmlParseXmlDecl)(int isGeneralTextEntity,
+                        const ENCODING *enc,
+                        const char *ptr,
+                        const char *end,
+                        const char **badPtr,
+                        const char **versionPtr,
+                        const char **versionEndPtr,
+                        const char **encodingName,
+                        const ENCODING **encoding,
+                        int *standalone)
+{
+  return doParseXmlDecl(NS(findEncoding),
+                        isGeneralTextEntity,
+                        enc,
+                        ptr,
+                        end,
+                        badPtr,
+                        versionPtr,
+                        versionEndPtr,
+                        encodingName,
+                        encoding,
+                        standalone);
+}