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-rw-r--r--xmlsave.c1967
1 files changed, 1967 insertions, 0 deletions
diff --git a/xmlsave.c b/xmlsave.c
new file mode 100644
index 0000000..2f8afcf
--- /dev/null
+++ b/xmlsave.c
@@ -0,0 +1,1967 @@
+/*
+ * xmlsave.c: Implemetation of the document serializer
+ *
+ * See Copyright for the status of this software.
+ *
+ * daniel@veillard.com
+ */
+
+#define IN_LIBXML
+#include "libxml.h"
+
+#include <string.h>
+#include <libxml/xmlmemory.h>
+#include <libxml/parserInternals.h>
+#include <libxml/tree.h>
+#include <libxml/xmlsave.h>
+#ifdef LIBXML_HTML_ENABLED
+#include <libxml/HTMLtree.h>
+
+/************************************************************************
+ * *
+ * XHTML detection *
+ * *
+ ************************************************************************/
+#define XHTML_STRICT_PUBLIC_ID BAD_CAST \
+ "-//W3C//DTD XHTML 1.0 Strict//EN"
+#define XHTML_STRICT_SYSTEM_ID BAD_CAST \
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"
+#define XHTML_FRAME_PUBLIC_ID BAD_CAST \
+ "-//W3C//DTD XHTML 1.0 Frameset//EN"
+#define XHTML_FRAME_SYSTEM_ID BAD_CAST \
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd"
+#define XHTML_TRANS_PUBLIC_ID BAD_CAST \
+ "-//W3C//DTD XHTML 1.0 Transitional//EN"
+#define XHTML_TRANS_SYSTEM_ID BAD_CAST \
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
+
+#define XHTML_NS_NAME BAD_CAST "http://www.w3.org/1999/xhtml"
+/**
+ * xmlIsXHTML:
+ * @systemID: the system identifier
+ * @publicID: the public identifier
+ *
+ * Try to find if the document correspond to an XHTML DTD
+ *
+ * Returns 1 if true, 0 if not and -1 in case of error
+ */
+int
+xmlIsXHTML(const xmlChar *systemID, const xmlChar *publicID) {
+ if ((systemID == NULL) && (publicID == NULL))
+ return(-1);
+ if (publicID != NULL) {
+ if (xmlStrEqual(publicID, XHTML_STRICT_PUBLIC_ID)) return(1);
+ if (xmlStrEqual(publicID, XHTML_FRAME_PUBLIC_ID)) return(1);
+ if (xmlStrEqual(publicID, XHTML_TRANS_PUBLIC_ID)) return(1);
+ }
+ if (systemID != NULL) {
+ if (xmlStrEqual(systemID, XHTML_STRICT_SYSTEM_ID)) return(1);
+ if (xmlStrEqual(systemID, XHTML_FRAME_SYSTEM_ID)) return(1);
+ if (xmlStrEqual(systemID, XHTML_TRANS_SYSTEM_ID)) return(1);
+ }
+ return(0);
+}
+#endif /* LIBXML_HTML_ENABLED */
+
+
+#ifdef LIBXML_OUTPUT_ENABLED
+
+#define TODO \
+ xmlGenericError(xmlGenericErrorContext, \
+ "Unimplemented block at %s:%d\n", \
+ __FILE__, __LINE__);
+
+struct _xmlSaveCtxt {
+ void *_private;
+ int type;
+ int fd;
+ const xmlChar *filename;
+ const xmlChar *encoding;
+ xmlCharEncodingHandlerPtr handler;
+ xmlOutputBufferPtr buf;
+ xmlDocPtr doc;
+ int options;
+ int level;
+ int format;
+};
+
+/************************************************************************
+ * *
+ * Output error handlers *
+ * *
+ ************************************************************************/
+/**
+ * xmlSaveErrMemory:
+ * @extra: extra informations
+ *
+ * Handle an out of memory condition
+ */
+static void
+xmlSaveErrMemory(const char *extra)
+{
+ __xmlSimpleError(XML_FROM_OUTPUT, XML_ERR_NO_MEMORY, NULL, NULL, extra);
+}
+
+/**
+ * xmlSaveErr:
+ * @code: the error number
+ * @node: the location of the error.
+ * @extra: extra informations
+ *
+ * Handle an out of memory condition
+ */
+static void
+xmlSaveErr(int code, xmlNodePtr node, const char *extra)
+{
+ const char *msg = NULL;
+
+ switch(code) {
+ case XML_SAVE_NOT_UTF8:
+ msg = "string is not in UTF-8";
+ break;
+ case XML_SAVE_CHAR_INVALID:
+ msg = "invalid character value";
+ break;
+ case XML_SAVE_UNKNOWN_ENCODING:
+ msg = "unknown encoding %s";
+ break;
+ case XML_SAVE_NO_DOCTYPE:
+ msg = "document has no DOCTYPE";
+ break;
+ default:
+ msg = "unexpected error number";
+ }
+ __xmlSimpleError(XML_FROM_OUTPUT, code, node, msg, extra);
+}
+
+/************************************************************************
+ * *
+ * Allocation and deallocation *
+ * *
+ ************************************************************************/
+
+/**
+ * xmlFreeSaveCtxt:
+ *
+ * Free a saving context, destroying the ouptut in any remaining buffer
+ */
+static void
+xmlFreeSaveCtxt(xmlSaveCtxtPtr ctxt)
+{
+ if (ctxt == NULL) return;
+ if (ctxt->encoding != NULL)
+ xmlFree((char *) ctxt->encoding);
+ xmlFree(ctxt);
+}
+
+/**
+ * xmlNewSaveCtxt:
+ *
+ * Create a new saving context
+ *
+ * Returns the new structure or NULL in case of error
+ */
+static xmlSaveCtxtPtr
+xmlNewSaveCtxt(const char *encoding, int options)
+{
+ xmlSaveCtxtPtr ret;
+
+ ret = (xmlSaveCtxtPtr) xmlMalloc(sizeof(xmlSaveCtxt));
+ if (ret == NULL) {
+ xmlSaveErrMemory("creating saving context");
+ return ( NULL );
+ }
+ memset(ret, 0, sizeof(xmlSaveCtxt));
+ ret->options = options;
+ if (encoding != NULL) {
+ ret->handler = xmlFindCharEncodingHandler(encoding);
+ if (ret->handler == NULL) {
+ xmlSaveErr(XML_SAVE_UNKNOWN_ENCODING, NULL, encoding);
+ xmlFreeSaveCtxt(ret);
+ return(NULL);
+ }
+ ret->encoding = xmlStrdup((const xmlChar *)encoding);
+ }
+ return(ret);
+}
+
+/************************************************************************
+ * *
+ * Dumping XML tree content to a simple buffer *
+ * *
+ ************************************************************************/
+/**
+ * xmlAttrSerializeContent:
+ * @buf: the XML buffer output
+ * @doc: the document
+ * @attr: the attribute pointer
+ *
+ * Serialize the attribute in the buffer
+ */
+static void
+xmlAttrSerializeContent(xmlBufferPtr buf, xmlDocPtr doc, xmlAttrPtr attr)
+{
+ xmlNodePtr children;
+
+ children = attr->children;
+ while (children != NULL) {
+ switch (children->type) {
+ case XML_TEXT_NODE:
+ xmlAttrSerializeTxtContent(buf, doc, attr, children->content);
+ break;
+ case XML_ENTITY_REF_NODE:
+ xmlBufferAdd(buf, BAD_CAST "&", 1);
+ xmlBufferAdd(buf, children->name,
+ xmlStrlen(children->name));
+ xmlBufferAdd(buf, BAD_CAST ";", 1);
+ break;
+ default:
+ /* should not happen unless we have a badly built tree */
+ break;
+ }
+ children = children->next;
+ }
+}
+
+/************************************************************************
+ * *
+ * Dumping XML tree content to an I/O output buffer *
+ * *
+ ************************************************************************/
+
+#ifdef LIBXML_HTML_ENABLED
+static void
+xhtmlNodeDumpOutput(xmlSaveCtxtPtr ctxt, xmlNodePtr cur);
+#endif
+static void xmlNodeListDumpOutput(xmlSaveCtxtPtr ctxt, xmlNodePtr cur);
+static void xmlNodeDumpOutputInternal(xmlSaveCtxtPtr ctxt, xmlNodePtr cur);
+void xmlNsListDumpOutput(xmlOutputBufferPtr buf, xmlNsPtr cur);
+
+/**
+ * xmlNsDumpOutput:
+ * @buf: the XML buffer output
+ * @cur: a namespace
+ *
+ * Dump a local Namespace definition.
+ * Should be called in the context of attributes dumps.
+ */
+static void
+xmlNsDumpOutput(xmlOutputBufferPtr buf, xmlNsPtr cur) {
+ if (cur == NULL) return;
+ if ((cur->type == XML_LOCAL_NAMESPACE) && (cur->href != NULL)) {
+ if (xmlStrEqual(cur->prefix, BAD_CAST "xml"))
+ return;
+
+ /* Within the context of an element attributes */
+ if (cur->prefix != NULL) {
+ xmlOutputBufferWriteString(buf, " xmlns:");
+ xmlOutputBufferWriteString(buf, (const char *)cur->prefix);
+ } else
+ xmlOutputBufferWriteString(buf, " xmlns");
+ xmlOutputBufferWriteString(buf, "=");
+ xmlBufferWriteQuotedString(buf->buffer, cur->href);
+ }
+}
+
+/**
+ * xmlNsListDumpOutput:
+ * @buf: the XML buffer output
+ * @cur: the first namespace
+ *
+ * Dump a list of local Namespace definitions.
+ * Should be called in the context of attributes dumps.
+ */
+void
+xmlNsListDumpOutput(xmlOutputBufferPtr buf, xmlNsPtr cur) {
+ while (cur != NULL) {
+ xmlNsDumpOutput(buf, cur);
+ cur = cur->next;
+ }
+}
+
+/**
+ * xmlDtdDumpOutput:
+ * @buf: the XML buffer output
+ * @dtd: the pointer to the DTD
+ *
+ * Dump the XML document DTD, if any.
+ */
+static void
+xmlDtdDumpOutput(xmlSaveCtxtPtr ctxt, xmlDtdPtr dtd) {
+ xmlOutputBufferPtr buf;
+ int format, level;
+ xmlDocPtr doc;
+
+ if (dtd == NULL) return;
+ if ((ctxt == NULL) || (ctxt->buf == NULL))
+ return;
+ buf = ctxt->buf;
+ xmlOutputBufferWriteString(buf, "<!DOCTYPE ");
+ xmlOutputBufferWriteString(buf, (const char *)dtd->name);
+ if (dtd->ExternalID != NULL) {
+ xmlOutputBufferWriteString(buf, " PUBLIC ");
+ xmlBufferWriteQuotedString(buf->buffer, dtd->ExternalID);
+ xmlOutputBufferWriteString(buf, " ");
+ xmlBufferWriteQuotedString(buf->buffer, dtd->SystemID);
+ } else if (dtd->SystemID != NULL) {
+ xmlOutputBufferWriteString(buf, " SYSTEM ");
+ xmlBufferWriteQuotedString(buf->buffer, dtd->SystemID);
+ }
+ if ((dtd->entities == NULL) && (dtd->elements == NULL) &&
+ (dtd->attributes == NULL) && (dtd->notations == NULL) &&
+ (dtd->pentities == NULL)) {
+ xmlOutputBufferWriteString(buf, ">");
+ return;
+ }
+ xmlOutputBufferWriteString(buf, " [\n");
+ format = ctxt->format;
+ level = ctxt->level;
+ doc = ctxt->doc;
+ ctxt->format = 0;
+ ctxt->level = -1;
+ ctxt->doc = dtd->doc;
+ xmlNodeListDumpOutput(ctxt, dtd->children);
+ ctxt->format = format;
+ ctxt->level = level;
+ ctxt->doc = doc;
+ xmlOutputBufferWriteString(buf, "]>");
+}
+
+/**
+ * xmlAttrDumpOutput:
+ * @buf: the XML buffer output
+ * @cur: the attribute pointer
+ *
+ * Dump an XML attribute
+ */
+static void
+xmlAttrDumpOutput(xmlSaveCtxtPtr ctxt, xmlAttrPtr cur) {
+ xmlOutputBufferPtr buf;
+ if (cur == NULL) return;
+ buf = ctxt->buf;
+ xmlOutputBufferWriteString(buf, " ");
+ if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
+ xmlOutputBufferWriteString(buf, (const char *)cur->ns->prefix);
+ xmlOutputBufferWriteString(buf, ":");
+ }
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ xmlOutputBufferWriteString(buf, "=\"");
+ xmlAttrSerializeContent(buf->buffer, ctxt->doc, cur);
+ xmlOutputBufferWriteString(buf, "\"");
+}
+
+/**
+ * xmlAttrListDumpOutput:
+ * @buf: the XML buffer output
+ * @doc: the document
+ * @cur: the first attribute pointer
+ * @encoding: an optional encoding string
+ *
+ * Dump a list of XML attributes
+ */
+static void
+xmlAttrListDumpOutput(xmlSaveCtxtPtr ctxt, xmlAttrPtr cur) {
+ if (cur == NULL) return;
+ while (cur != NULL) {
+ xmlAttrDumpOutput(ctxt, cur);
+ cur = cur->next;
+ }
+}
+
+
+
+/**
+ * xmlNodeListDumpOutput:
+ * @cur: the first node
+ *
+ * Dump an XML node list, recursive behaviour, children are printed too.
+ */
+static void
+xmlNodeListDumpOutput(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+ int i;
+ xmlOutputBufferPtr buf;
+
+ if (cur == NULL) return;
+ buf = ctxt->buf;
+ while (cur != NULL) {
+ if ((ctxt->format) && (xmlIndentTreeOutput) &&
+ (cur->type == XML_ELEMENT_NODE))
+ for (i = 0;i < ctxt->level;i++)
+ xmlOutputBufferWriteString(buf, xmlTreeIndentString);
+ xmlNodeDumpOutputInternal(ctxt, cur);
+ if (ctxt->format) {
+ xmlOutputBufferWriteString(buf, "\n");
+ }
+ cur = cur->next;
+ }
+}
+
+/**
+ * xmlNodeDumpOutputInternal:
+ * @cur: the current node
+ *
+ * Dump an XML node, recursive behaviour, children are printed too.
+ */
+static void
+xmlNodeDumpOutputInternal(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+ int i, format;
+ xmlNodePtr tmp;
+ xmlChar *start, *end;
+ xmlOutputBufferPtr buf;
+
+ if (cur == NULL) return;
+ buf = ctxt->buf;
+ if (cur->type == XML_XINCLUDE_START)
+ return;
+ if (cur->type == XML_XINCLUDE_END)
+ return;
+ if (cur->type == XML_DTD_NODE) {
+ xmlDtdDumpOutput(ctxt, (xmlDtdPtr) cur);
+ return;
+ }
+ if (cur->type == XML_DOCUMENT_FRAG_NODE) {
+ xmlNodeListDumpOutput(ctxt, cur->children);
+ return;
+ }
+ if (cur->type == XML_ELEMENT_DECL) {
+ xmlDumpElementDecl(buf->buffer, (xmlElementPtr) cur);
+ return;
+ }
+ if (cur->type == XML_ATTRIBUTE_DECL) {
+ xmlDumpAttributeDecl(buf->buffer, (xmlAttributePtr) cur);
+ return;
+ }
+ if (cur->type == XML_ENTITY_DECL) {
+ xmlDumpEntityDecl(buf->buffer, (xmlEntityPtr) cur);
+ return;
+ }
+ if (cur->type == XML_TEXT_NODE) {
+ if (cur->content != NULL) {
+ if ((cur->name == xmlStringText) ||
+ (cur->name != xmlStringTextNoenc)) {
+ xmlChar *buffer;
+
+ if (ctxt->encoding == NULL)
+ buffer = xmlEncodeEntitiesReentrant(ctxt->doc,
+ cur->content);
+ else
+ buffer = xmlEncodeSpecialChars(ctxt->doc, cur->content);
+ if (buffer != NULL) {
+ xmlOutputBufferWriteString(buf, (const char *)buffer);
+ xmlFree(buffer);
+ }
+ } else {
+ /*
+ * Disable escaping, needed for XSLT
+ */
+ xmlOutputBufferWriteString(buf, (const char *) cur->content);
+ }
+ }
+
+ return;
+ }
+ if (cur->type == XML_PI_NODE) {
+ if (cur->content != NULL) {
+ xmlOutputBufferWriteString(buf, "<?");
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ if (cur->content != NULL) {
+ xmlOutputBufferWriteString(buf, " ");
+ xmlOutputBufferWriteString(buf, (const char *)cur->content);
+ }
+ xmlOutputBufferWriteString(buf, "?>");
+ } else {
+ xmlOutputBufferWriteString(buf, "<?");
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ xmlOutputBufferWriteString(buf, "?>");
+ }
+ return;
+ }
+ if (cur->type == XML_COMMENT_NODE) {
+ if (cur->content != NULL) {
+ xmlOutputBufferWriteString(buf, "<!--");
+ xmlOutputBufferWriteString(buf, (const char *)cur->content);
+ xmlOutputBufferWriteString(buf, "-->");
+ }
+ return;
+ }
+ if (cur->type == XML_ENTITY_REF_NODE) {
+ xmlOutputBufferWriteString(buf, "&");
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ xmlOutputBufferWriteString(buf, ";");
+ return;
+ }
+ if (cur->type == XML_CDATA_SECTION_NODE) {
+ start = end = cur->content;
+ while (*end != '\0') {
+ if ((*end == ']') && (*(end + 1) == ']') && (*(end + 2) == '>')) {
+ end = end + 2;
+ xmlOutputBufferWriteString(buf, "<![CDATA[");
+ xmlOutputBufferWrite(buf, end - start, (const char *)start);
+ xmlOutputBufferWriteString(buf, "]]>");
+ start = end;
+ }
+ end++;
+ }
+ if (start != end) {
+ xmlOutputBufferWriteString(buf, "<![CDATA[");
+ xmlOutputBufferWriteString(buf, (const char *)start);
+ xmlOutputBufferWriteString(buf, "]]>");
+ }
+ return;
+ }
+ if (cur->type == XML_ATTRIBUTE_NODE) {
+ xmlAttrDumpOutput(ctxt, (xmlAttrPtr) cur);
+ return;
+ }
+ if (cur->type == XML_NAMESPACE_DECL) {
+ xmlNsDumpOutput(buf, (xmlNsPtr) cur);
+ return;
+ }
+
+ format = ctxt->format;
+ if (format == 1) {
+ tmp = cur->children;
+ while (tmp != NULL) {
+ if ((tmp->type == XML_TEXT_NODE) ||
+ (tmp->type == XML_CDATA_SECTION_NODE) ||
+ (tmp->type == XML_ENTITY_REF_NODE)) {
+ ctxt->format = 0;
+ break;
+ }
+ tmp = tmp->next;
+ }
+ }
+ xmlOutputBufferWriteString(buf, "<");
+ if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
+ xmlOutputBufferWriteString(buf, (const char *)cur->ns->prefix);
+ xmlOutputBufferWriteString(buf, ":");
+ }
+
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ if (cur->nsDef)
+ xmlNsListDumpOutput(buf, cur->nsDef);
+ if (cur->properties != NULL)
+ xmlAttrListDumpOutput(ctxt, cur->properties);
+
+ if (((cur->type == XML_ELEMENT_NODE) || (cur->content == NULL)) &&
+ (cur->children == NULL) && (!xmlSaveNoEmptyTags)) {
+ xmlOutputBufferWriteString(buf, "/>");
+ ctxt->format = format;
+ return;
+ }
+ xmlOutputBufferWriteString(buf, ">");
+ if ((cur->type != XML_ELEMENT_NODE) && (cur->content != NULL)) {
+ xmlChar *buffer;
+
+ if (ctxt->encoding == NULL)
+ buffer = xmlEncodeEntitiesReentrant(ctxt->doc, cur->content);
+ else
+ buffer = xmlEncodeSpecialChars(ctxt->doc, cur->content);
+ if (buffer != NULL) {
+ xmlOutputBufferWriteString(buf, (const char *)buffer);
+ xmlFree(buffer);
+ }
+ }
+ if (cur->children != NULL) {
+ if (ctxt->format) xmlOutputBufferWriteString(buf, "\n");
+ if (ctxt->level >= 0) ctxt->level++;
+ xmlNodeListDumpOutput(ctxt, cur->children);
+ if (ctxt->level > 0) ctxt->level--;
+ if ((xmlIndentTreeOutput) && (ctxt->format))
+ for (i = 0;i < ctxt->level;i++)
+ xmlOutputBufferWriteString(buf, xmlTreeIndentString);
+ }
+ xmlOutputBufferWriteString(buf, "</");
+ if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
+ xmlOutputBufferWriteString(buf, (const char *)cur->ns->prefix);
+ xmlOutputBufferWriteString(buf, ":");
+ }
+
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ xmlOutputBufferWriteString(buf, ">");
+ ctxt->format = format;
+}
+
+/**
+ * xmlDocContentDumpOutput:
+ * @cur: the document
+ *
+ * Dump an XML document.
+ */
+static void
+xmlDocContentDumpOutput(xmlSaveCtxtPtr ctxt, xmlDocPtr cur) {
+#ifdef LIBXML_HTML_ENABLED
+ xmlDtdPtr dtd;
+ int is_xhtml = 0;
+#endif
+ const xmlChar *oldenc = cur->encoding;
+ const xmlChar *encoding = ctxt->encoding;
+ xmlOutputBufferPtr buf;
+
+ xmlInitParser();
+
+ if (ctxt->encoding != NULL)
+ cur->encoding = BAD_CAST ctxt->encoding;
+
+ buf = ctxt->buf;
+ xmlOutputBufferWriteString(buf, "<?xml version=");
+ if (cur->version != NULL)
+ xmlBufferWriteQuotedString(buf->buffer, cur->version);
+ else
+ xmlOutputBufferWriteString(buf, "\"1.0\"");
+ if (ctxt->encoding == NULL) {
+ if (cur->encoding != NULL)
+ encoding = cur->encoding;
+ else if (cur->charset != XML_CHAR_ENCODING_UTF8)
+ encoding = (const xmlChar *)
+ xmlGetCharEncodingName((xmlCharEncoding) cur->charset);
+ }
+ if (encoding != NULL) {
+ xmlOutputBufferWriteString(buf, " encoding=");
+ xmlBufferWriteQuotedString(buf->buffer, (xmlChar *) encoding);
+ }
+ switch (cur->standalone) {
+ case 0:
+ xmlOutputBufferWriteString(buf, " standalone=\"no\"");
+ break;
+ case 1:
+ xmlOutputBufferWriteString(buf, " standalone=\"yes\"");
+ break;
+ }
+ xmlOutputBufferWriteString(buf, "?>\n");
+
+#ifdef LIBXML_HTML_ENABLED
+ dtd = xmlGetIntSubset(cur);
+ if (dtd != NULL) {
+ is_xhtml = xmlIsXHTML(dtd->SystemID, dtd->ExternalID);
+ if (is_xhtml < 0) is_xhtml = 0;
+ }
+ if (is_xhtml) {
+ if (encoding != NULL)
+ htmlSetMetaEncoding(cur, (const xmlChar *) ctxt->encoding);
+ else
+ htmlSetMetaEncoding(cur, BAD_CAST "UTF-8");
+ }
+#endif
+ if (cur->children != NULL) {
+ xmlNodePtr child = cur->children;
+
+ while (child != NULL) {
+ ctxt->level = 0;
+#ifdef LIBXML_HTML_ENABLED
+ if (is_xhtml)
+ xhtmlNodeDumpOutput(ctxt, child);
+ else
+#endif
+ xmlNodeDumpOutputInternal(ctxt, child);
+ xmlOutputBufferWriteString(buf, "\n");
+ child = child->next;
+ }
+ }
+ if (ctxt->encoding != NULL)
+ cur->encoding = oldenc;
+}
+
+#ifdef LIBXML_HTML_ENABLED
+/************************************************************************
+ * *
+ * Functions specific to XHTML serialization *
+ * *
+ ************************************************************************/
+
+/**
+ * xhtmlIsEmpty:
+ * @node: the node
+ *
+ * Check if a node is an empty xhtml node
+ *
+ * Returns 1 if the node is an empty node, 0 if not and -1 in case of error
+ */
+static int
+xhtmlIsEmpty(xmlNodePtr node) {
+ if (node == NULL)
+ return(-1);
+ if (node->type != XML_ELEMENT_NODE)
+ return(0);
+ if ((node->ns != NULL) && (!xmlStrEqual(node->ns->href, XHTML_NS_NAME)))
+ return(0);
+ if (node->children != NULL)
+ return(0);
+ switch (node->name[0]) {
+ case 'a':
+ if (xmlStrEqual(node->name, BAD_CAST "area"))
+ return(1);
+ return(0);
+ case 'b':
+ if (xmlStrEqual(node->name, BAD_CAST "br"))
+ return(1);
+ if (xmlStrEqual(node->name, BAD_CAST "base"))
+ return(1);
+ if (xmlStrEqual(node->name, BAD_CAST "basefont"))
+ return(1);
+ return(0);
+ case 'c':
+ if (xmlStrEqual(node->name, BAD_CAST "col"))
+ return(1);
+ return(0);
+ case 'f':
+ if (xmlStrEqual(node->name, BAD_CAST "frame"))
+ return(1);
+ return(0);
+ case 'h':
+ if (xmlStrEqual(node->name, BAD_CAST "hr"))
+ return(1);
+ return(0);
+ case 'i':
+ if (xmlStrEqual(node->name, BAD_CAST "img"))
+ return(1);
+ if (xmlStrEqual(node->name, BAD_CAST "input"))
+ return(1);
+ if (xmlStrEqual(node->name, BAD_CAST "isindex"))
+ return(1);
+ return(0);
+ case 'l':
+ if (xmlStrEqual(node->name, BAD_CAST "link"))
+ return(1);
+ return(0);
+ case 'm':
+ if (xmlStrEqual(node->name, BAD_CAST "meta"))
+ return(1);
+ return(0);
+ case 'p':
+ if (xmlStrEqual(node->name, BAD_CAST "param"))
+ return(1);
+ return(0);
+ }
+ return(0);
+}
+
+/**
+ * xhtmlAttrListDumpOutput:
+ * @cur: the first attribute pointer
+ *
+ * Dump a list of XML attributes
+ */
+static void
+xhtmlAttrListDumpOutput(xmlSaveCtxtPtr ctxt, xmlAttrPtr cur) {
+ xmlAttrPtr xml_lang = NULL;
+ xmlAttrPtr lang = NULL;
+ xmlAttrPtr name = NULL;
+ xmlAttrPtr id = NULL;
+ xmlNodePtr parent;
+ xmlOutputBufferPtr buf;
+
+ if (cur == NULL) return;
+ buf = ctxt->buf;
+ parent = cur->parent;
+ while (cur != NULL) {
+ if ((cur->ns == NULL) && (xmlStrEqual(cur->name, BAD_CAST "id")))
+ id = cur;
+ else
+ if ((cur->ns == NULL) && (xmlStrEqual(cur->name, BAD_CAST "name")))
+ name = cur;
+ else
+ if ((cur->ns == NULL) && (xmlStrEqual(cur->name, BAD_CAST "lang")))
+ lang = cur;
+ else
+ if ((cur->ns != NULL) && (xmlStrEqual(cur->name, BAD_CAST "lang")) &&
+ (xmlStrEqual(cur->ns->prefix, BAD_CAST "xml")))
+ xml_lang = cur;
+ else if ((cur->ns == NULL) &&
+ ((cur->children == NULL) ||
+ (cur->children->content == NULL) ||
+ (cur->children->content[0] == 0)) &&
+ (htmlIsBooleanAttr(cur->name))) {
+ if (cur->children != NULL)
+ xmlFreeNode(cur->children);
+ cur->children = xmlNewText(cur->name);
+ if (cur->children != NULL)
+ cur->children->parent = (xmlNodePtr) cur;
+ }
+ xmlAttrDumpOutput(ctxt, cur);
+ cur = cur->next;
+ }
+ /*
+ * C.8
+ */
+ if ((name != NULL) && (id == NULL)) {
+ if ((parent != NULL) && (parent->name != NULL) &&
+ ((xmlStrEqual(parent->name, BAD_CAST "a")) ||
+ (xmlStrEqual(parent->name, BAD_CAST "p")) ||
+ (xmlStrEqual(parent->name, BAD_CAST "div")) ||
+ (xmlStrEqual(parent->name, BAD_CAST "img")) ||
+ (xmlStrEqual(parent->name, BAD_CAST "map")) ||
+ (xmlStrEqual(parent->name, BAD_CAST "applet")) ||
+ (xmlStrEqual(parent->name, BAD_CAST "form")) ||
+ (xmlStrEqual(parent->name, BAD_CAST "frame")) ||
+ (xmlStrEqual(parent->name, BAD_CAST "iframe")))) {
+ xmlOutputBufferWriteString(buf, " id=\"");
+ xmlAttrSerializeContent(buf->buffer, ctxt->doc, name);
+ xmlOutputBufferWriteString(buf, "\"");
+ }
+ }
+ /*
+ * C.7.
+ */
+ if ((lang != NULL) && (xml_lang == NULL)) {
+ xmlOutputBufferWriteString(buf, " xml:lang=\"");
+ xmlAttrSerializeContent(buf->buffer, ctxt->doc, lang);
+ xmlOutputBufferWriteString(buf, "\"");
+ } else
+ if ((xml_lang != NULL) && (lang == NULL)) {
+ xmlOutputBufferWriteString(buf, " lang=\"");
+ xmlAttrSerializeContent(buf->buffer, ctxt->doc, xml_lang);
+ xmlOutputBufferWriteString(buf, "\"");
+ }
+}
+
+/**
+ * xhtmlNodeListDumpOutput:
+ * @buf: the XML buffer output
+ * @doc: the XHTML document
+ * @cur: the first node
+ * @level: the imbrication level for indenting
+ * @format: is formatting allowed
+ * @encoding: an optional encoding string
+ *
+ * Dump an XML node list, recursive behaviour, children are printed too.
+ * Note that @format = 1 provide node indenting only if xmlIndentTreeOutput = 1
+ * or xmlKeepBlanksDefault(0) was called
+ */
+static void
+xhtmlNodeListDumpOutput(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+ int i;
+ xmlOutputBufferPtr buf;
+
+ if (cur == NULL) return;
+ buf = ctxt->buf;
+ while (cur != NULL) {
+ if ((ctxt->format) && (xmlIndentTreeOutput) &&
+ (cur->type == XML_ELEMENT_NODE))
+ for (i = 0;i < ctxt->level;i++)
+ xmlOutputBufferWriteString(buf, xmlTreeIndentString);
+ xhtmlNodeDumpOutput(ctxt, cur);
+ if (ctxt->format) {
+ xmlOutputBufferWriteString(buf, "\n");
+ }
+ cur = cur->next;
+ }
+}
+
+/**
+ * xhtmlNodeDumpOutput:
+ * @buf: the XML buffer output
+ * @doc: the XHTML document
+ * @cur: the current node
+ * @level: the imbrication level for indenting
+ * @format: is formatting allowed
+ * @encoding: an optional encoding string
+ *
+ * Dump an XHTML node, recursive behaviour, children are printed too.
+ */
+static void
+xhtmlNodeDumpOutput(xmlSaveCtxtPtr ctxt, xmlNodePtr cur) {
+ int i, format;
+ xmlNodePtr tmp;
+ xmlChar *start, *end;
+ xmlOutputBufferPtr buf;
+
+ if (cur == NULL) return;
+ if (cur->type == XML_XINCLUDE_START)
+ return;
+ if (cur->type == XML_XINCLUDE_END)
+ return;
+ if (cur->type == XML_DTD_NODE) {
+ xmlDtdDumpOutput(ctxt, (xmlDtdPtr) cur);
+ return;
+ }
+ buf = ctxt->buf;
+ if (cur->type == XML_ELEMENT_DECL) {
+ xmlDumpElementDecl(buf->buffer, (xmlElementPtr) cur);
+ return;
+ }
+ if (cur->type == XML_ATTRIBUTE_DECL) {
+ xmlDumpAttributeDecl(buf->buffer, (xmlAttributePtr) cur);
+ return;
+ }
+ if (cur->type == XML_ENTITY_DECL) {
+ xmlDumpEntityDecl(buf->buffer, (xmlEntityPtr) cur);
+ return;
+ }
+ if (cur->type == XML_TEXT_NODE) {
+ if (cur->content != NULL) {
+ if ((cur->name == xmlStringText) ||
+ (cur->name != xmlStringTextNoenc)) {
+ xmlChar *buffer;
+
+ if (ctxt->encoding == NULL)
+ buffer = xmlEncodeEntitiesReentrant(ctxt->doc,
+ cur->content);
+ else
+ buffer = xmlEncodeSpecialChars(ctxt->doc, cur->content);
+ if (buffer != NULL) {
+ xmlOutputBufferWriteString(buf, (const char *)buffer);
+ xmlFree(buffer);
+ }
+ } else {
+ /*
+ * Disable escaping, needed for XSLT
+ */
+ xmlOutputBufferWriteString(buf, (const char *) cur->content);
+ }
+ }
+
+ return;
+ }
+ if (cur->type == XML_PI_NODE) {
+ if (cur->content != NULL) {
+ xmlOutputBufferWriteString(buf, "<?");
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ if (cur->content != NULL) {
+ xmlOutputBufferWriteString(buf, " ");
+ xmlOutputBufferWriteString(buf, (const char *)cur->content);
+ }
+ xmlOutputBufferWriteString(buf, "?>");
+ } else {
+ xmlOutputBufferWriteString(buf, "<?");
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ xmlOutputBufferWriteString(buf, "?>");
+ }
+ return;
+ }
+ if (cur->type == XML_COMMENT_NODE) {
+ if (cur->content != NULL) {
+ xmlOutputBufferWriteString(buf, "<!--");
+ xmlOutputBufferWriteString(buf, (const char *)cur->content);
+ xmlOutputBufferWriteString(buf, "-->");
+ }
+ return;
+ }
+ if (cur->type == XML_ENTITY_REF_NODE) {
+ xmlOutputBufferWriteString(buf, "&");
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ xmlOutputBufferWriteString(buf, ";");
+ return;
+ }
+ if (cur->type == XML_CDATA_SECTION_NODE) {
+ start = end = cur->content;
+ while (*end != '\0') {
+ if (*end == ']' && *(end + 1) == ']' && *(end + 2) == '>') {
+ end = end + 2;
+ xmlOutputBufferWriteString(buf, "<![CDATA[");
+ xmlOutputBufferWrite(buf, end - start, (const char *)start);
+ xmlOutputBufferWriteString(buf, "]]>");
+ start = end;
+ }
+ end++;
+ }
+ if (start != end) {
+ xmlOutputBufferWriteString(buf, "<![CDATA[");
+ xmlOutputBufferWriteString(buf, (const char *)start);
+ xmlOutputBufferWriteString(buf, "]]>");
+ }
+ return;
+ }
+
+ format = ctxt->format;
+ if (format == 1) {
+ tmp = cur->children;
+ while (tmp != NULL) {
+ if ((tmp->type == XML_TEXT_NODE) ||
+ (tmp->type == XML_ENTITY_REF_NODE)) {
+ format = 0;
+ break;
+ }
+ tmp = tmp->next;
+ }
+ }
+ xmlOutputBufferWriteString(buf, "<");
+ if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
+ xmlOutputBufferWriteString(buf, (const char *)cur->ns->prefix);
+ xmlOutputBufferWriteString(buf, ":");
+ }
+
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ if (cur->nsDef)
+ xmlNsListDumpOutput(buf, cur->nsDef);
+ if ((xmlStrEqual(cur->name, BAD_CAST "html") &&
+ (cur->ns == NULL) && (cur->nsDef == NULL))) {
+ /*
+ * 3.1.1. Strictly Conforming Documents A.3.1.1 3/
+ */
+ xmlOutputBufferWriteString(buf,
+ " xmlns=\"http://www.w3.org/1999/xhtml\"");
+ }
+ if (cur->properties != NULL)
+ xhtmlAttrListDumpOutput(ctxt, cur->properties);
+
+ if ((cur->type == XML_ELEMENT_NODE) && (cur->children == NULL)) {
+ if (((cur->ns == NULL) || (cur->ns->prefix == NULL)) &&
+ (xhtmlIsEmpty(cur) == 1)) {
+ /*
+ * C.2. Empty Elements
+ */
+ xmlOutputBufferWriteString(buf, " />");
+ } else {
+ /*
+ * C.3. Element Minimization and Empty Element Content
+ */
+ xmlOutputBufferWriteString(buf, "></");
+ if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
+ xmlOutputBufferWriteString(buf, (const char *)cur->ns->prefix);
+ xmlOutputBufferWriteString(buf, ":");
+ }
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ xmlOutputBufferWriteString(buf, ">");
+ }
+ return;
+ }
+ xmlOutputBufferWriteString(buf, ">");
+ if ((cur->type != XML_ELEMENT_NODE) && (cur->content != NULL)) {
+ xmlChar *buffer;
+
+ if (ctxt->encoding == NULL)
+ buffer = xmlEncodeEntitiesReentrant(ctxt->doc, cur->content);
+ else
+ buffer = xmlEncodeSpecialChars(ctxt->doc, cur->content);
+ if (buffer != NULL) {
+ xmlOutputBufferWriteString(buf, (const char *)buffer);
+ xmlFree(buffer);
+ }
+ }
+
+ /*
+ * 4.8. Script and Style elements
+ */
+ if ((cur->type == XML_ELEMENT_NODE) &&
+ ((xmlStrEqual(cur->name, BAD_CAST "script")) ||
+ (xmlStrEqual(cur->name, BAD_CAST "style"))) &&
+ ((cur->ns == NULL) ||
+ (xmlStrEqual(cur->ns->href, XHTML_NS_NAME)))) {
+ xmlNodePtr child = cur->children;
+
+ while (child != NULL) {
+ if ((child->type == XML_TEXT_NODE) ||
+ (child->type == XML_CDATA_SECTION_NODE)) {
+ /*
+ * Apparently CDATA escaping for style just break on IE,
+ * mozilla and galeon, so ...
+ */
+ if (xmlStrEqual(cur->name, BAD_CAST "style") &&
+ (xmlStrchr(child->content, '<') == NULL) &&
+ (xmlStrchr(child->content, '>') == NULL) &&
+ (xmlStrchr(child->content, '&') == NULL)) {
+ int level = ctxt->level;
+ int indent = ctxt->format;
+
+ ctxt->level = 0;
+ ctxt->format = 0;
+ xhtmlNodeDumpOutput(ctxt, child);
+ ctxt->level = level;
+ ctxt->format = indent;
+ } else {
+ start = end = child->content;
+ while (*end != '\0') {
+ if (*end == ']' &&
+ *(end + 1) == ']' &&
+ *(end + 2) == '>') {
+ end = end + 2;
+ xmlOutputBufferWriteString(buf, "<![CDATA[");
+ xmlOutputBufferWrite(buf, end - start,
+ (const char *)start);
+ xmlOutputBufferWriteString(buf, "]]>");
+ start = end;
+ }
+ end++;
+ }
+ if (start != end) {
+ xmlOutputBufferWriteString(buf, "<![CDATA[");
+ xmlOutputBufferWriteString(buf, (const char *)start);
+ xmlOutputBufferWriteString(buf, "]]>");
+ }
+ }
+ } else {
+ int level = ctxt->level;
+ int indent = ctxt->format;
+
+ ctxt->level = 0;
+ ctxt->format = 0;
+ xhtmlNodeDumpOutput(ctxt, child);
+ ctxt->level = level;
+ ctxt->format = indent;
+ }
+ child = child->next;
+ }
+ } else if (cur->children != NULL) {
+ if (format) xmlOutputBufferWriteString(buf, "\n");
+ if (ctxt->level >= 0) ctxt->level++;
+ xhtmlNodeListDumpOutput(ctxt, cur->children);
+ if (ctxt->level > 0) ctxt->level--;
+ if ((xmlIndentTreeOutput) && (format))
+ for (i = 0;i < ctxt->level;i++)
+ xmlOutputBufferWriteString(buf, xmlTreeIndentString);
+ }
+ xmlOutputBufferWriteString(buf, "</");
+ if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
+ xmlOutputBufferWriteString(buf, (const char *)cur->ns->prefix);
+ xmlOutputBufferWriteString(buf, ":");
+ }
+
+ xmlOutputBufferWriteString(buf, (const char *)cur->name);
+ xmlOutputBufferWriteString(buf, ">");
+}
+#endif
+
+/************************************************************************
+ * *
+ * Public entry points *
+ * *
+ ************************************************************************/
+
+/**
+ * xmlSaveToFd:
+ * @fd: a file descriptor number
+ * @encoding: the encoding name to use or NULL
+ * @options: a set of xmlSaveOptions
+ *
+ * Create a document saving context serializing to a file descriptor
+ * with the encoding and the options given.
+ *
+ * Returns a new serialization context or NULL in case of error.
+ */
+xmlSaveCtxtPtr
+xmlSaveToFd(int fd, const char *encoding, int options)
+{
+ xmlSaveCtxtPtr ret;
+
+ ret = xmlNewSaveCtxt(encoding, options);
+ if (ret == NULL) return(NULL);
+ ret->buf = xmlOutputBufferCreateFd(fd, ret->handler);
+ if (ret->buf == NULL) {
+ xmlFreeSaveCtxt(ret);
+ return(NULL);
+ }
+ return(ret);
+}
+
+/**
+ * xmlSaveToFilename:
+ * @filename: a file name or an URL
+ * @encoding: the encoding name to use or NULL
+ * @options: a set of xmlSaveOptions
+ *
+ * Create a document saving context serializing to a filename or possibly
+ * to an URL (but this is less reliable) with the encoding and the options
+ * given.
+ *
+ * Returns a new serialization context or NULL in case of error.
+ */
+xmlSaveCtxtPtr
+xmlSaveToFilename(const char *filename, const char *encoding, int options)
+{
+ xmlSaveCtxtPtr ret;
+ int compression = 0; /* TODO handle compression option */
+
+ ret = xmlNewSaveCtxt(encoding, options);
+ if (ret == NULL) return(NULL);
+ ret->buf = xmlOutputBufferCreateFilename(filename, ret->handler,
+ compression);
+ if (ret->buf == NULL) {
+ xmlFreeSaveCtxt(ret);
+ return(NULL);
+ }
+ return(ret);
+}
+
+#if 0
+/**
+ * xmlSaveToBuffer:
+ * @buffer: a buffer
+ * @encoding: the encoding name to use or NULL
+ * @options: a set of xmlSaveOptions
+ *
+ * Create a document saving context serializing to a buffer
+ * with the encoding and the options given
+ *
+ * Returns a new serialization context or NULL in case of error.
+ */
+xmlSaveCtxtPtr
+xmlSaveToBuffer(xmlBufferPtr buffer, const char *encoding, int options)
+{
+ TODO
+ return(NULL);
+}
+#endif
+
+/**
+ * xmlSaveToIO:
+ * @iowrite: an I/O write function
+ * @ioclose: an I/O close function
+ * @ioctx: an I/O handler
+ * @encoding: the encoding name to use or NULL
+ * @options: a set of xmlSaveOptions
+ *
+ * Create a document saving context serializing to a file descriptor
+ * with the encoding and the options given
+ *
+ * Returns a new serialization context or NULL in case of error.
+ */
+xmlSaveCtxtPtr
+xmlSaveToIO(xmlOutputWriteCallback iowrite,
+ xmlOutputCloseCallback ioclose,
+ void *ioctx, const char *encoding, int options)
+{
+ xmlSaveCtxtPtr ret;
+
+ ret = xmlNewSaveCtxt(encoding, options);
+ if (ret == NULL) return(NULL);
+ ret->buf = xmlOutputBufferCreateIO(iowrite, ioclose, ioctx, ret->handler);
+ if (ret->buf == NULL) {
+ xmlFreeSaveCtxt(ret);
+ return(NULL);
+ }
+ return(ret);
+}
+
+/**
+ * xmlSaveDoc:
+ * @ctxt: a document saving context
+ * @doc: a document
+ *
+ * Save a full document to a saving context
+ *
+ * Returns the number of byte written or -1 in case of error
+ */
+long
+xmlSaveDoc(xmlSaveCtxtPtr ctxt, xmlDocPtr doc)
+{
+ long ret = 0;
+
+ xmlDocContentDumpOutput(ctxt, doc);
+ TODO /* compute ret */
+ return(ret);
+}
+
+/**
+ * xmlSaveTree:
+ * @ctxt: a document saving context
+ * @node: a document
+ *
+ * Save a subtree starting at the node parameter to a saving context
+ *
+ * Returns the number of byte written or -1 in case of error
+ */
+long
+xmlSaveTree(xmlSaveCtxtPtr ctxt, xmlNodePtr node)
+{
+ long ret = 0;
+
+ xmlNodeDumpOutputInternal(ctxt, node);
+ TODO /* compute ret */
+ return(ret);
+}
+
+/**
+ * xmlSaveFlush:
+ * @ctxt: a document saving context
+ *
+ * Flush a document saving context, i.e. make sure that all bytes have
+ * been output.
+ *
+ * Returns the number of byte written or -1 in case of error.
+ */
+int
+xmlSaveFlush(xmlSaveCtxtPtr ctxt)
+{
+ if (ctxt == NULL) return(-1);
+ if (ctxt->buf == NULL) return(-1);
+ return(xmlOutputBufferFlush(ctxt->buf));
+}
+
+/**
+ * xmlSaveClose:
+ * @ctxt: a document saving context
+ *
+ * Close a document saving context, i.e. make sure that all bytes have
+ * been output and free the associated data.
+ *
+ * Returns the number of byte written or -1 in case of error.
+ */
+int
+xmlSaveClose(xmlSaveCtxtPtr ctxt)
+{
+ int ret;
+
+ if (ctxt == NULL) return(-1);
+ ret = xmlSaveFlush(ctxt);
+ xmlFreeSaveCtxt(ctxt);
+ return(ret);
+}
+
+/************************************************************************
+ * *
+ * Public entry points based on buffers *
+ * *
+ ************************************************************************/
+/**
+ * xmlAttrSerializeTxtContent:
+ * @buf: the XML buffer output
+ * @doc: the document
+ * @attr: the attribute node
+ * @string: the text content
+ *
+ * Serialize text attribute values to an xml simple buffer
+ */
+void
+xmlAttrSerializeTxtContent(xmlBufferPtr buf, xmlDocPtr doc,
+ xmlAttrPtr attr, const xmlChar *string) {
+ xmlChar *base, *cur;
+
+ if (string == NULL) return;
+ base = cur = (xmlChar *)string;
+ while (*cur != 0) {
+ if (*cur == '\n') {
+ if (base != cur)
+ xmlBufferAdd(buf, base, cur - base);
+ xmlBufferAdd(buf, BAD_CAST "&#10;", 5);
+ cur++;
+ base = cur;
+ } else if (*cur == '\r') {
+ if (base != cur)
+ xmlBufferAdd(buf, base, cur - base);
+ xmlBufferAdd(buf, BAD_CAST "&#13;", 5);
+ cur++;
+ base = cur;
+ } else if (*cur == '\t') {
+ if (base != cur)
+ xmlBufferAdd(buf, base, cur - base);
+ xmlBufferAdd(buf, BAD_CAST "&#9;", 4);
+ cur++;
+ base = cur;
+ } else if (*cur == '"') {
+ if (base != cur)
+ xmlBufferAdd(buf, base, cur - base);
+ xmlBufferAdd(buf, BAD_CAST "&quot;", 6);
+ cur++;
+ base = cur;
+ } else if (*cur == '<') {
+ if (base != cur)
+ xmlBufferAdd(buf, base, cur - base);
+ xmlBufferAdd(buf, BAD_CAST "&lt;", 4);
+ cur++;
+ base = cur;
+ } else if (*cur == '>') {
+ if (base != cur)
+ xmlBufferAdd(buf, base, cur - base);
+ xmlBufferAdd(buf, BAD_CAST "&gt;", 4);
+ cur++;
+ base = cur;
+ } else if (*cur == '&') {
+ if (base != cur)
+ xmlBufferAdd(buf, base, cur - base);
+ xmlBufferAdd(buf, BAD_CAST "&amp;", 5);
+ cur++;
+ base = cur;
+ } else if ((*cur >= 0x80) && ((doc == NULL) ||
+ (doc->encoding == NULL))) {
+ /*
+ * We assume we have UTF-8 content.
+ */
+ char tmp[10];
+ int val = 0, l = 1;
+
+ if (base != cur)
+ xmlBufferAdd(buf, base, cur - base);
+ if (*cur < 0xC0) {
+ xmlSaveErr(XML_SAVE_NOT_UTF8, (xmlNodePtr) attr, NULL);
+ if (doc != NULL)
+ doc->encoding = xmlStrdup(BAD_CAST "ISO-8859-1");
+ snprintf(tmp, sizeof(tmp), "&#%d;", *cur);
+ tmp[sizeof(tmp) - 1] = 0;
+ xmlBufferAdd(buf, (xmlChar *) tmp, -1);
+ cur++;
+ base = cur;
+ continue;
+ } else if (*cur < 0xE0) {
+ val = (cur[0]) & 0x1F;
+ val <<= 6;
+ val |= (cur[1]) & 0x3F;
+ l = 2;
+ } else if (*cur < 0xF0) {
+ val = (cur[0]) & 0x0F;
+ val <<= 6;
+ val |= (cur[1]) & 0x3F;
+ val <<= 6;
+ val |= (cur[2]) & 0x3F;
+ l = 3;
+ } else if (*cur < 0xF8) {
+ val = (cur[0]) & 0x07;
+ val <<= 6;
+ val |= (cur[1]) & 0x3F;
+ val <<= 6;
+ val |= (cur[2]) & 0x3F;
+ val <<= 6;
+ val |= (cur[3]) & 0x3F;
+ l = 4;
+ }
+ if ((l == 1) || (!IS_CHAR(val))) {
+ xmlSaveErr(XML_SAVE_CHAR_INVALID, (xmlNodePtr) attr, NULL);
+ if (doc != NULL)
+ doc->encoding = xmlStrdup(BAD_CAST "ISO-8859-1");
+ snprintf(tmp, sizeof(tmp), "&#%d;", *cur);
+ tmp[sizeof(tmp) - 1] = 0;
+ xmlBufferAdd(buf, (xmlChar *) tmp, -1);
+ cur++;
+ base = cur;
+ continue;
+ }
+ /*
+ * We could do multiple things here. Just save
+ * as a char ref
+ */
+ snprintf(tmp, sizeof(tmp), "&#x%X;", val);
+ tmp[sizeof(tmp) - 1] = 0;
+ xmlBufferAdd(buf, (xmlChar *) tmp, -1);
+ cur += l;
+ base = cur;
+ } else {
+ cur++;
+ }
+ }
+ if (base != cur)
+ xmlBufferAdd(buf, base, cur - base);
+}
+
+/**
+ * xmlNodeDump:
+ * @buf: the XML buffer output
+ * @doc: the document
+ * @cur: the current node
+ * @level: the imbrication level for indenting
+ * @format: is formatting allowed
+ *
+ * Dump an XML node, recursive behaviour,children are printed too.
+ * Note that @format = 1 provide node indenting only if xmlIndentTreeOutput = 1
+ * or xmlKeepBlanksDefault(0) was called
+ *
+ * Returns the number of bytes written to the buffer or -1 in case of error
+ */
+int
+xmlNodeDump(xmlBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur, int level,
+ int format)
+{
+ unsigned int use;
+ int ret;
+ xmlOutputBufferPtr outbuf;
+
+ xmlInitParser();
+
+ if (cur == NULL) {
+#ifdef DEBUG_TREE
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlNodeDump : node == NULL\n");
+#endif
+ return (-1);
+ }
+ if (buf == NULL) {
+#ifdef DEBUG_TREE
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlNodeDump : buf == NULL\n");
+#endif
+ return (-1);
+ }
+ outbuf = (xmlOutputBufferPtr) xmlMalloc(sizeof(xmlOutputBuffer));
+ if (outbuf == NULL) {
+ xmlSaveErrMemory("creating buffer");
+ return (-1);
+ }
+ memset(outbuf, 0, (size_t) sizeof(xmlOutputBuffer));
+ outbuf->buffer = buf;
+ outbuf->encoder = NULL;
+ outbuf->writecallback = NULL;
+ outbuf->closecallback = NULL;
+ outbuf->context = NULL;
+ outbuf->written = 0;
+
+ use = buf->use;
+ xmlNodeDumpOutput(outbuf, doc, cur, level, format, NULL);
+ xmlFree(outbuf);
+ ret = buf->use - use;
+ return (ret);
+}
+
+/**
+ * xmlElemDump:
+ * @f: the FILE * for the output
+ * @doc: the document
+ * @cur: the current node
+ *
+ * Dump an XML/HTML node, recursive behaviour, children are printed too.
+ */
+void
+xmlElemDump(FILE * f, xmlDocPtr doc, xmlNodePtr cur)
+{
+ xmlOutputBufferPtr outbuf;
+
+ xmlInitParser();
+
+ if (cur == NULL) {
+#ifdef DEBUG_TREE
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlElemDump : cur == NULL\n");
+#endif
+ return;
+ }
+#ifdef DEBUG_TREE
+ if (doc == NULL) {
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlElemDump : doc == NULL\n");
+ }
+#endif
+
+ outbuf = xmlOutputBufferCreateFile(f, NULL);
+ if (outbuf == NULL)
+ return;
+ if ((doc != NULL) && (doc->type == XML_HTML_DOCUMENT_NODE)) {
+#ifdef LIBXML_HTML_ENABLED
+ htmlNodeDumpOutput(outbuf, doc, cur, NULL);
+#else
+ xmlSaveErr(XML_ERR_INTERNAL_ERROR, cur, "HTML support not compiled in\n");
+#endif /* LIBXML_HTML_ENABLED */
+ } else
+ xmlNodeDumpOutput(outbuf, doc, cur, 0, 1, NULL);
+ xmlOutputBufferClose(outbuf);
+}
+
+/************************************************************************
+ * *
+ * Saving functions front-ends *
+ * *
+ ************************************************************************/
+
+/**
+ * xmlNodeDumpOutput:
+ * @buf: the XML buffer output
+ * @doc: the document
+ * @cur: the current node
+ * @level: the imbrication level for indenting
+ * @format: is formatting allowed
+ * @encoding: an optional encoding string
+ *
+ * Dump an XML node, recursive behaviour, children are printed too.
+ * Note that @format = 1 provide node indenting only if xmlIndentTreeOutput = 1
+ * or xmlKeepBlanksDefault(0) was called
+ */
+void
+xmlNodeDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur,
+ int level, int format, const char *encoding)
+{
+ xmlSaveCtxt ctxt;
+#ifdef LIBXML_HTML_ENABLED
+ xmlDtdPtr dtd;
+ int is_xhtml = 0;
+#endif
+
+ xmlInitParser();
+
+ memset(&ctxt, 0, sizeof(ctxt));
+ ctxt.doc = doc;
+ ctxt.buf = buf;
+ ctxt.level = level;
+ ctxt.format = format;
+ ctxt.encoding = (const xmlChar *) encoding;
+
+#ifdef LIBXML_HTML_ENABLED
+ dtd = xmlGetIntSubset(doc);
+ if (dtd != NULL) {
+ is_xhtml = xmlIsXHTML(dtd->SystemID, dtd->ExternalID);
+ if (is_xhtml < 0)
+ is_xhtml = 0;
+ if ((is_xhtml) && (cur->parent == (xmlNodePtr) doc) &&
+ (cur->type == XML_ELEMENT_NODE) &&
+ (xmlStrEqual(cur->name, BAD_CAST "html"))) {
+ if (encoding != NULL)
+ htmlSetMetaEncoding((htmlDocPtr) doc,
+ (const xmlChar *) encoding);
+ else
+ htmlSetMetaEncoding((htmlDocPtr) doc, BAD_CAST "UTF-8");
+ }
+ }
+
+ if (is_xhtml)
+ xhtmlNodeDumpOutput(&ctxt, cur);
+ else
+#endif
+ xmlNodeDumpOutputInternal(&ctxt, cur);
+}
+
+/**
+ * xmlDocDumpFormatMemoryEnc:
+ * @out_doc: Document to generate XML text from
+ * @doc_txt_ptr: Memory pointer for allocated XML text
+ * @doc_txt_len: Length of the generated XML text
+ * @txt_encoding: Character encoding to use when generating XML text
+ * @format: should formatting spaces been added
+ *
+ * Dump the current DOM tree into memory using the character encoding specified
+ * by the caller. Note it is up to the caller of this function to free the
+ * allocated memory with xmlFree().
+ * Note that @format = 1 provide node indenting only if xmlIndentTreeOutput = 1
+ * or xmlKeepBlanksDefault(0) was called
+ */
+
+void
+xmlDocDumpFormatMemoryEnc(xmlDocPtr out_doc, xmlChar **doc_txt_ptr,
+ int * doc_txt_len, const char * txt_encoding,
+ int format) {
+ xmlSaveCtxt ctxt;
+ int dummy = 0;
+ xmlOutputBufferPtr out_buff = NULL;
+ xmlCharEncodingHandlerPtr conv_hdlr = NULL;
+
+ if (doc_txt_len == NULL) {
+ doc_txt_len = &dummy; /* Continue, caller just won't get length */
+ }
+
+ if (doc_txt_ptr == NULL) {
+ *doc_txt_len = 0;
+ return;
+ }
+
+ *doc_txt_ptr = NULL;
+ *doc_txt_len = 0;
+
+ if (out_doc == NULL) {
+ /* No document, no output */
+ return;
+ }
+
+ /*
+ * Validate the encoding value, if provided.
+ * This logic is copied from xmlSaveFileEnc.
+ */
+
+ if (txt_encoding == NULL)
+ txt_encoding = (const char *) out_doc->encoding;
+ if (txt_encoding != NULL) {
+ conv_hdlr = xmlFindCharEncodingHandler(txt_encoding);
+ if ( conv_hdlr == NULL ) {
+ xmlSaveErr(XML_SAVE_UNKNOWN_ENCODING, (xmlNodePtr) out_doc,
+ txt_encoding);
+ return;
+ }
+ }
+
+ if ((out_buff = xmlAllocOutputBuffer(conv_hdlr)) == NULL ) {
+ xmlSaveErrMemory("creating buffer");
+ return;
+ }
+
+ memset(&ctxt, 0, sizeof(ctxt));
+ ctxt.doc = out_doc;
+ ctxt.buf = out_buff;
+ ctxt.level = 0;
+ ctxt.format = format;
+ ctxt.encoding = (const xmlChar *) txt_encoding;
+ xmlDocContentDumpOutput(&ctxt, out_doc);
+ xmlOutputBufferFlush(out_buff);
+ if (out_buff->conv != NULL) {
+ *doc_txt_len = out_buff->conv->use;
+ *doc_txt_ptr = xmlStrndup(out_buff->conv->content, *doc_txt_len);
+ } else {
+ *doc_txt_len = out_buff->buffer->use;
+ *doc_txt_ptr = xmlStrndup(out_buff->buffer->content, *doc_txt_len);
+ }
+ (void)xmlOutputBufferClose(out_buff);
+
+ if ((*doc_txt_ptr == NULL) && (*doc_txt_len > 0)) {
+ *doc_txt_len = 0;
+ xmlSaveErrMemory("creating output");
+ }
+
+ return;
+}
+
+/**
+ * xmlDocDumpMemory:
+ * @cur: the document
+ * @mem: OUT: the memory pointer
+ * @size: OUT: the memory length
+ *
+ * Dump an XML document in memory and return the #xmlChar * and it's size
+ * in bytes. It's up to the caller to free the memory with xmlFree().
+ * The resulting byte array is zero terminated, though the last 0 is not
+ * included in the returned size.
+ */
+void
+xmlDocDumpMemory(xmlDocPtr cur, xmlChar**mem, int *size) {
+ xmlDocDumpFormatMemoryEnc(cur, mem, size, NULL, 0);
+}
+
+/**
+ * xmlDocDumpFormatMemory:
+ * @cur: the document
+ * @mem: OUT: the memory pointer
+ * @size: OUT: the memory length
+ * @format: should formatting spaces been added
+ *
+ *
+ * Dump an XML document in memory and return the #xmlChar * and it's size.
+ * It's up to the caller to free the memory with xmlFree().
+ * Note that @format = 1 provide node indenting only if xmlIndentTreeOutput = 1
+ * or xmlKeepBlanksDefault(0) was called
+ */
+void
+xmlDocDumpFormatMemory(xmlDocPtr cur, xmlChar**mem, int *size, int format) {
+ xmlDocDumpFormatMemoryEnc(cur, mem, size, NULL, format);
+}
+
+/**
+ * xmlDocDumpMemoryEnc:
+ * @out_doc: Document to generate XML text from
+ * @doc_txt_ptr: Memory pointer for allocated XML text
+ * @doc_txt_len: Length of the generated XML text
+ * @txt_encoding: Character encoding to use when generating XML text
+ *
+ * Dump the current DOM tree into memory using the character encoding specified
+ * by the caller. Note it is up to the caller of this function to free the
+ * allocated memory with xmlFree().
+ */
+
+void
+xmlDocDumpMemoryEnc(xmlDocPtr out_doc, xmlChar **doc_txt_ptr,
+ int * doc_txt_len, const char * txt_encoding) {
+ xmlDocDumpFormatMemoryEnc(out_doc, doc_txt_ptr, doc_txt_len,
+ txt_encoding, 0);
+}
+
+/**
+ * xmlDocFormatDump:
+ * @f: the FILE*
+ * @cur: the document
+ * @format: should formatting spaces been added
+ *
+ * Dump an XML document to an open FILE.
+ *
+ * returns: the number of bytes written or -1 in case of failure.
+ * Note that @format = 1 provide node indenting only if xmlIndentTreeOutput = 1
+ * or xmlKeepBlanksDefault(0) was called
+ */
+int
+xmlDocFormatDump(FILE *f, xmlDocPtr cur, int format) {
+ xmlSaveCtxt ctxt;
+ xmlOutputBufferPtr buf;
+ const char * encoding;
+ xmlCharEncodingHandlerPtr handler = NULL;
+ int ret;
+
+ if (cur == NULL) {
+#ifdef DEBUG_TREE
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlDocDump : document == NULL\n");
+#endif
+ return(-1);
+ }
+ encoding = (const char *) cur->encoding;
+
+ if (encoding != NULL) {
+ handler = xmlFindCharEncodingHandler(encoding);
+ if (handler == NULL) {
+ xmlFree((char *) cur->encoding);
+ cur->encoding = NULL;
+ }
+ }
+ buf = xmlOutputBufferCreateFile(f, handler);
+ if (buf == NULL) return(-1);
+ memset(&ctxt, 0, sizeof(ctxt));
+ ctxt.doc = cur;
+ ctxt.buf = buf;
+ ctxt.level = 0;
+ ctxt.format = format;
+ ctxt.encoding = (const xmlChar *) encoding;
+ xmlDocContentDumpOutput(&ctxt, cur);
+
+ ret = xmlOutputBufferClose(buf);
+ return(ret);
+}
+
+/**
+ * xmlDocDump:
+ * @f: the FILE*
+ * @cur: the document
+ *
+ * Dump an XML document to an open FILE.
+ *
+ * returns: the number of bytes written or -1 in case of failure.
+ */
+int
+xmlDocDump(FILE *f, xmlDocPtr cur) {
+ return(xmlDocFormatDump (f, cur, 0));
+}
+
+/**
+ * xmlSaveFileTo:
+ * @buf: an output I/O buffer
+ * @cur: the document
+ * @encoding: the encoding if any assuming the I/O layer handles the trancoding
+ *
+ * Dump an XML document to an I/O buffer.
+ *
+ * returns: the number of bytes written or -1 in case of failure.
+ */
+int
+xmlSaveFileTo(xmlOutputBufferPtr buf, xmlDocPtr cur, const char *encoding) {
+ xmlSaveCtxt ctxt;
+ int ret;
+
+ if (buf == NULL) return(0);
+ memset(&ctxt, 0, sizeof(ctxt));
+ ctxt.doc = cur;
+ ctxt.buf = buf;
+ ctxt.level = 0;
+ ctxt.format = 0;
+ ctxt.encoding = (const xmlChar *) encoding;
+ xmlDocContentDumpOutput(&ctxt, cur);
+ ret = xmlOutputBufferClose(buf);
+ return(ret);
+}
+
+/**
+ * xmlSaveFormatFileTo:
+ * @buf: an output I/O buffer
+ * @cur: the document
+ * @encoding: the encoding if any assuming the I/O layer handles the trancoding
+ * @format: should formatting spaces been added
+ *
+ * Dump an XML document to an I/O buffer.
+ * NOTE: the I/O buffer is closed as part of the call.
+ *
+ * returns: the number of bytes written or -1 in case of failure.
+ */
+int
+xmlSaveFormatFileTo(xmlOutputBufferPtr buf, xmlDocPtr cur,
+ const char *encoding, int format)
+{
+ xmlSaveCtxt ctxt;
+ int ret;
+
+ if (buf == NULL)
+ return (0);
+ memset(&ctxt, 0, sizeof(ctxt));
+ ctxt.doc = cur;
+ ctxt.buf = buf;
+ ctxt.level = 0;
+ ctxt.format = format;
+ ctxt.encoding = (const xmlChar *) encoding;
+ xmlDocContentDumpOutput(&ctxt, cur);
+ ret = xmlOutputBufferClose(buf);
+ return (ret);
+}
+
+/**
+ * xmlSaveFormatFileEnc:
+ * @filename: the filename or URL to output
+ * @cur: the document being saved
+ * @encoding: the name of the encoding to use or NULL.
+ * @format: should formatting spaces be added.
+ *
+ * Dump an XML document to a file or an URL.
+ *
+ * Returns the number of bytes written or -1 in case of error.
+ * Note that @format = 1 provide node indenting only if xmlIndentTreeOutput = 1
+ * or xmlKeepBlanksDefault(0) was called
+ */
+int
+xmlSaveFormatFileEnc( const char * filename, xmlDocPtr cur,
+ const char * encoding, int format ) {
+ xmlSaveCtxt ctxt;
+ xmlOutputBufferPtr buf;
+ xmlCharEncodingHandlerPtr handler = NULL;
+ int ret;
+
+ if (cur == NULL)
+ return(-1);
+
+ if (encoding == NULL)
+ encoding = (const char *) cur->encoding;
+
+ if (encoding != NULL) {
+
+ handler = xmlFindCharEncodingHandler(encoding);
+ if (handler == NULL)
+ return(-1);
+ }
+
+#ifdef HAVE_ZLIB_H
+ if (cur->compression < 0) cur->compression = xmlGetCompressMode();
+#endif
+ /*
+ * save the content to a temp buffer.
+ */
+ buf = xmlOutputBufferCreateFilename(filename, handler, cur->compression);
+ if (buf == NULL) return(-1);
+ memset(&ctxt, 0, sizeof(ctxt));
+ ctxt.doc = cur;
+ ctxt.buf = buf;
+ ctxt.level = 0;
+ ctxt.format = format;
+ ctxt.encoding = (const xmlChar *) encoding;
+
+ xmlDocContentDumpOutput(&ctxt, cur);
+
+ ret = xmlOutputBufferClose(buf);
+ return(ret);
+}
+
+
+/**
+ * xmlSaveFileEnc:
+ * @filename: the filename (or URL)
+ * @cur: the document
+ * @encoding: the name of an encoding (or NULL)
+ *
+ * Dump an XML document, converting it to the given encoding
+ *
+ * returns: the number of bytes written or -1 in case of failure.
+ */
+int
+xmlSaveFileEnc(const char *filename, xmlDocPtr cur, const char *encoding) {
+ return ( xmlSaveFormatFileEnc( filename, cur, encoding, 0 ) );
+}
+
+/**
+ * xmlSaveFormatFile:
+ * @filename: the filename (or URL)
+ * @cur: the document
+ * @format: should formatting spaces been added
+ *
+ * Dump an XML document to a file. Will use compression if
+ * compiled in and enabled. If @filename is "-" the stdout file is
+ * used. If @format is set then the document will be indented on output.
+ * Note that @format = 1 provide node indenting only if xmlIndentTreeOutput = 1
+ * or xmlKeepBlanksDefault(0) was called
+ *
+ * returns: the number of bytes written or -1 in case of failure.
+ */
+int
+xmlSaveFormatFile(const char *filename, xmlDocPtr cur, int format) {
+ return ( xmlSaveFormatFileEnc( filename, cur, NULL, format ) );
+}
+
+/**
+ * xmlSaveFile:
+ * @filename: the filename (or URL)
+ * @cur: the document
+ *
+ * Dump an XML document to a file. Will use compression if
+ * compiled in and enabled. If @filename is "-" the stdout file is
+ * used.
+ * returns: the number of bytes written or -1 in case of failure.
+ */
+int
+xmlSaveFile(const char *filename, xmlDocPtr cur) {
+ return(xmlSaveFormatFileEnc(filename, cur, NULL, 0));
+}
+
+#endif /* LIBXML_OUTPUT_ENABLED */
+
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-28 05:29:16 +0000