Add third_party to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@19 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 901 insertions, 0 deletions

diff --git a/third_party/libxml/dict.c b/third_party/libxml/dict.c
new file mode 100644
index 0000000..3b4054f
--- /dev/null
+++ b/third_party/libxml/dict.c
@@ -0,0 +1,901 @@
+/*
+ * dict.c: dictionary of reusable strings, just used to avoid allocation
+ *         and freeing operations.
+ *
+ * Copyright (C) 2003 Daniel Veillard.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE AUTHORS AND
+ * CONTRIBUTORS ACCEPT NO RESPONSIBILITY IN ANY CONCEIVABLE MANNER.
+ *
+ * Author: daniel@veillard.com
+ */
+
+#define IN_LIBXML
+#include "libxml.h"
+
+#include <string.h>
+#include <libxml/tree.h>
+#include <libxml/dict.h>
+#include <libxml/xmlmemory.h>
+#include <libxml/xmlerror.h>
+#include <libxml/globals.h>
+
+#define MAX_HASH_LEN 4
+#define MIN_DICT_SIZE 128
+#define MAX_DICT_HASH 8 * 2048
+
+/* #define ALLOW_REMOVAL */
+/* #define DEBUG_GROW */
+
+/*
+ * An entry in the dictionnary
+ */
+typedef struct _xmlDictEntry xmlDictEntry;
+typedef xmlDictEntry *xmlDictEntryPtr;
+struct _xmlDictEntry {
+    struct _xmlDictEntry *next;
+    const xmlChar *name;
+    int len;
+    int valid;
+};
+
+typedef struct _xmlDictStrings xmlDictStrings;
+typedef xmlDictStrings *xmlDictStringsPtr;
+struct _xmlDictStrings {
+    xmlDictStringsPtr next;
+    xmlChar *free;
+    xmlChar *end;
+    int size;
+    int nbStrings;
+    xmlChar array[1];
+};
+/*
+ * The entire dictionnary
+ */
+struct _xmlDict {
+    int ref_counter;
+    xmlRMutexPtr mutex;
+
+    struct _xmlDictEntry *dict;
+    int size;
+    int nbElems;
+    xmlDictStringsPtr strings;
+
+    struct _xmlDict *subdict;
+};
+
+/*
+ * A mutex for modifying the reference counter for shared
+ * dictionaries.
+ */
+static xmlRMutexPtr xmlDictMutex = NULL;
+
+/*
+ * Whether the dictionary mutex was initialized.
+ */
+static int xmlDictInitialized = 0;
+
+/**
+ * xmlInitializeDict:
+ *
+ * Do the dictionary mutex initialization.
+ * this function is not thread safe, initialization should
+ * preferably be done once at startup
+ */
+static int xmlInitializeDict(void) {
+    if (xmlDictInitialized)
+        return(1);
+
+    if ((xmlDictMutex = xmlNewRMutex()) == NULL)
+        return(0);
+
+    xmlDictInitialized = 1;
+    return(1);
+}
+
+/**
+ * xmlDictCleanup:
+ *
+ * Free the dictionary mutex.
+ */
+void
+xmlDictCleanup(void) {
+    if (!xmlDictInitialized)
+        return;
+
+    xmlFreeRMutex(xmlDictMutex);
+
+    xmlDictInitialized = 0;
+}
+
+/*
+ * xmlDictAddString:
+ * @dict: the dictionnary
+ * @name: the name of the userdata
+ * @len: the length of the name, if -1 it is recomputed
+ *
+ * Add the string to the array[s]
+ *
+ * Returns the pointer of the local string, or NULL in case of error.
+ */
+static const xmlChar *
+xmlDictAddString(xmlDictPtr dict, const xmlChar *name, int namelen) {
+    xmlDictStringsPtr pool;
+    const xmlChar *ret;
+    int size = 0; /* + sizeof(_xmlDictStrings) == 1024 */
+
+    pool = dict->strings;
+    while (pool != NULL) {
+	if (pool->end - pool->free > namelen)
+	    goto found_pool;
+	if (pool->size > size) size = pool->size;
+	pool = pool->next;
+    }
+    /*
+     * Not found, need to allocate
+     */
+    if (pool == NULL) {
+        if (size == 0) size = 1000;
+	else size *= 4; /* exponential growth */
+        if (size < 4 * namelen) 
+	    size = 4 * namelen; /* just in case ! */
+	pool = (xmlDictStringsPtr) xmlMalloc(sizeof(xmlDictStrings) + size);
+	if (pool == NULL)
+	    return(NULL);
+	pool->size = size;
+	pool->nbStrings = 0;
+	pool->free = &pool->array[0];
+	pool->end = &pool->array[size];
+	pool->next = dict->strings;
+	dict->strings = pool;
+    }
+found_pool:
+    ret = pool->free;
+    memcpy(pool->free, name, namelen);
+    pool->free += namelen;
+    *(pool->free++) = 0;
+    return(ret);
+}
+
+/*
+ * xmlDictAddQString:
+ * @dict: the dictionnary
+ * @prefix: the prefix of the userdata
+ * @name: the name of the userdata
+ * @len: the length of the name, if -1 it is recomputed
+ *
+ * Add the QName to the array[s]
+ *
+ * Returns the pointer of the local string, or NULL in case of error.
+ */
+static const xmlChar *
+xmlDictAddQString(xmlDictPtr dict, const xmlChar *prefix,
+                 const xmlChar *name, int namelen)
+{
+    xmlDictStringsPtr pool;
+    const xmlChar *ret;
+    int size = 0; /* + sizeof(_xmlDictStrings) == 1024 */
+    int plen;
+
+    if (prefix == NULL) return(xmlDictAddString(dict, name, namelen));
+    plen = xmlStrlen(prefix);
+
+    pool = dict->strings;
+    while (pool != NULL) {
+	if (pool->end - pool->free > namelen)
+	    goto found_pool;
+	if (pool->size > size) size = pool->size;
+	pool = pool->next;
+    }
+    /*
+     * Not found, need to allocate
+     */
+    if (pool == NULL) {
+        if (size == 0) size = 1000;
+	else size *= 4; /* exponential growth */
+        if (size < 4 * namelen) 
+	    size = 4 * namelen; /* just in case ! */
+	pool = (xmlDictStringsPtr) xmlMalloc(sizeof(xmlDictStrings) + size);
+	if (pool == NULL)
+	    return(NULL);
+	pool->size = size;
+	pool->nbStrings = 0;
+	pool->free = &pool->array[0];
+	pool->end = &pool->array[size];
+	pool->next = dict->strings;
+	dict->strings = pool;
+    }
+found_pool:
+    ret = pool->free;
+    memcpy(pool->free, prefix, plen);
+    pool->free += plen;
+    *(pool->free++) = ':';
+    namelen -= plen + 1;
+    memcpy(pool->free, name, namelen);
+    pool->free += namelen;
+    *(pool->free++) = 0;
+    return(ret);
+}
+
+/*
+ * xmlDictComputeKey:
+ * Calculate the hash key
+ */
+static unsigned long
+xmlDictComputeKey(const xmlChar *name, int namelen) {
+    unsigned long value = 0L;
+    
+    if (name == NULL) return(0);
+    value = *name;
+    value <<= 5;
+    if (namelen > 10) {
+        value += name[namelen - 1];
+        namelen = 10;
+    }
+    switch (namelen) {
+        case 10: value += name[9];
+        case 9: value += name[8];
+        case 8: value += name[7];
+        case 7: value += name[6];
+        case 6: value += name[5];
+        case 5: value += name[4];
+        case 4: value += name[3];
+        case 3: value += name[2];
+        case 2: value += name[1];
+        default: break;
+    }
+    return(value);
+}
+
+/*
+ * xmlDictComputeQKey:
+ * Calculate the hash key
+ */
+static unsigned long
+xmlDictComputeQKey(const xmlChar *prefix, const xmlChar *name, int len)
+{
+    unsigned long value = 0L;
+    int plen;
+    
+    if (prefix == NULL)
+        return(xmlDictComputeKey(name, len));
+
+    plen = xmlStrlen(prefix);
+    if (plen == 0)
+	value += 30 * (unsigned long) ':';
+    else
+	value += 30 * (*prefix);
+    
+    if (len > 10) {
+        value += name[len - (plen + 1 + 1)];
+        len = 10;
+	if (plen > 10)
+	    plen = 10;
+    }
+    switch (plen) {
+        case 10: value += prefix[9];
+        case 9: value += prefix[8];
+        case 8: value += prefix[7];
+        case 7: value += prefix[6];
+        case 6: value += prefix[5];
+        case 5: value += prefix[4];
+        case 4: value += prefix[3];
+        case 3: value += prefix[2];
+        case 2: value += prefix[1];
+        case 1: value += prefix[0];
+        default: break;
+    }
+    len -= plen;
+    if (len > 0) {
+        value += (unsigned long) ':';
+	len--;
+    }
+    switch (len) {
+        case 10: value += name[9];
+        case 9: value += name[8];
+        case 8: value += name[7];
+        case 7: value += name[6];
+        case 6: value += name[5];
+        case 5: value += name[4];
+        case 4: value += name[3];
+        case 3: value += name[2];
+        case 2: value += name[1];
+        case 1: value += name[0];
+        default: break;
+    }
+    return(value);
+}
+
+/**
+ * xmlDictCreate:
+ *
+ * Create a new dictionary
+ *
+ * Returns the newly created dictionnary, or NULL if an error occured.
+ */
+xmlDictPtr
+xmlDictCreate(void) {
+    xmlDictPtr dict;
+
+    if (!xmlDictInitialized)
+        if (!xmlInitializeDict())
+            return(NULL);
+ 
+    dict = xmlMalloc(sizeof(xmlDict));
+    if (dict) {
+        dict->ref_counter = 1;
+
+        dict->size = MIN_DICT_SIZE;
+	dict->nbElems = 0;
+        dict->dict = xmlMalloc(MIN_DICT_SIZE * sizeof(xmlDictEntry));
+	dict->strings = NULL;
+	dict->subdict = NULL;
+        if (dict->dict) {
+            if ((dict->mutex = xmlNewRMutex()) != NULL) {
+                memset(dict->dict, 0, MIN_DICT_SIZE * sizeof(xmlDictEntry));
+                return(dict);
+            }
+            xmlFree(dict->dict);
+        }
+        xmlFree(dict);
+    }
+    return(NULL);
+}
+
+/**
+ * xmlDictCreateSub:
+ * @sub: an existing dictionnary
+ *
+ * Create a new dictionary, inheriting strings from the read-only
+ * dictionnary @sub. On lookup, strings are first searched in the
+ * new dictionnary, then in @sub, and if not found are created in the
+ * new dictionnary.
+ *
+ * Returns the newly created dictionnary, or NULL if an error occured.
+ */
+xmlDictPtr
+xmlDictCreateSub(xmlDictPtr sub) {
+    xmlDictPtr dict = xmlDictCreate();
+  
+    if ((dict != NULL) && (sub != NULL)) {
+        dict->subdict = sub;
+	xmlDictReference(dict->subdict);
+    }
+    return(dict);
+}
+
+/**
+ * xmlDictReference:
+ * @dict: the dictionnary
+ *
+ * Increment the reference counter of a dictionary
+ *
+ * Returns 0 in case of success and -1 in case of error
+ */
+int
+xmlDictReference(xmlDictPtr dict) {
+    if (!xmlDictInitialized)
+        if (!xmlInitializeDict())
+            return(-1);
+
+    if (dict == NULL) return -1;
+    xmlRMutexLock(xmlDictMutex);
+    dict->ref_counter++;
+    xmlRMutexUnlock(xmlDictMutex);
+    return(0);
+}
+
+/**
+ * xmlDictGrow:
+ * @dict: the dictionnary
+ * @size: the new size of the dictionnary
+ *
+ * resize the dictionnary
+ *
+ * Returns 0 in case of success, -1 in case of failure
+ */
+static int
+xmlDictGrow(xmlDictPtr dict, int size) {
+    unsigned long key;
+    int oldsize, i;
+    xmlDictEntryPtr iter, next;
+    struct _xmlDictEntry *olddict;
+#ifdef DEBUG_GROW
+    unsigned long nbElem = 0;
+#endif
+  
+    if (dict == NULL)
+	return(-1);
+    if (size < 8)
+        return(-1);
+    if (size > 8 * 2048)
+	return(-1);
+
+    oldsize = dict->size;
+    olddict = dict->dict;
+    if (olddict == NULL)
+        return(-1);
+  
+    dict->dict = xmlMalloc(size * sizeof(xmlDictEntry));
+    if (dict->dict == NULL) {
+	dict->dict = olddict;
+	return(-1);
+    }
+    memset(dict->dict, 0, size * sizeof(xmlDictEntry));
+    dict->size = size;
+
+    /*	If the two loops are merged, there would be situations where
+	a new entry needs to allocated and data copied into it from 
+	the main dict. So instead, we run through the array twice, first
+	copying all the elements in the main array (where we can't get
+	conflicts) and then the rest, so we only free (and don't allocate)
+    */
+    for (i = 0; i < oldsize; i++) {
+	if (olddict[i].valid == 0) 
+	    continue;
+	key = xmlDictComputeKey(olddict[i].name, olddict[i].len) % dict->size;
+	memcpy(&(dict->dict[key]), &(olddict[i]), sizeof(xmlDictEntry));
+	dict->dict[key].next = NULL;
+#ifdef DEBUG_GROW
+	nbElem++;
+#endif
+    }
+
+    for (i = 0; i < oldsize; i++) {
+	iter = olddict[i].next;
+	while (iter) {
+	    next = iter->next;
+
+	    /*
+	     * put back the entry in the new dict
+	     */
+
+	    key = xmlDictComputeKey(iter->name, iter->len) % dict->size;
+	    if (dict->dict[key].valid == 0) {
+		memcpy(&(dict->dict[key]), iter, sizeof(xmlDictEntry));
+		dict->dict[key].next = NULL;
+		dict->dict[key].valid = 1;
+		xmlFree(iter);
+	    } else {
+	    	iter->next = dict->dict[key].next;
+	    	dict->dict[key].next = iter;
+	    }
+
+#ifdef DEBUG_GROW
+	    nbElem++;
+#endif
+
+	    iter = next;
+	}
+    }
+
+    xmlFree(olddict);
+
+#ifdef DEBUG_GROW
+    xmlGenericError(xmlGenericErrorContext,
+	    "xmlDictGrow : from %d to %d, %d elems\n", oldsize, size, nbElem);
+#endif
+
+    return(0);
+}
+
+/**
+ * xmlDictFree:
+ * @dict: the dictionnary
+ *
+ * Free the hash @dict and its contents. The userdata is
+ * deallocated with @f if provided.
+ */
+void
+xmlDictFree(xmlDictPtr dict) {
+    int i;
+    xmlDictEntryPtr iter;
+    xmlDictEntryPtr next;
+    int inside_dict = 0;
+    xmlDictStringsPtr pool, nextp;
+
+    if (dict == NULL)
+	return;
+
+    if (!xmlDictInitialized)
+        if (!xmlInitializeDict())
+            return;
+
+    /* decrement the counter, it may be shared by a parser and docs */
+    xmlRMutexLock(xmlDictMutex);
+    dict->ref_counter--;
+    if (dict->ref_counter > 0) {
+        xmlRMutexUnlock(xmlDictMutex);
+        return;
+    }
+
+    xmlRMutexUnlock(xmlDictMutex);
+
+    if (dict->subdict != NULL) {
+        xmlDictFree(dict->subdict);
+    }
+
+    if (dict->dict) {
+	for(i = 0; ((i < dict->size) && (dict->nbElems > 0)); i++) {
+	    iter = &(dict->dict[i]);
+	    if (iter->valid == 0)
+		continue;
+	    inside_dict = 1;
+	    while (iter) {
+		next = iter->next;
+		if (!inside_dict)
+		    xmlFree(iter);
+		dict->nbElems--;
+		inside_dict = 0;
+		iter = next;
+	    }
+	    inside_dict = 0;
+	}
+	xmlFree(dict->dict);
+    }
+    pool = dict->strings;
+    while (pool != NULL) {
+        nextp = pool->next;
+	xmlFree(pool);
+	pool = nextp;
+    }
+    xmlFreeRMutex(dict->mutex);
+    xmlFree(dict);
+}
+
+/**
+ * xmlDictLookup:
+ * @dict: the dictionnary
+ * @name: the name of the userdata
+ * @len: the length of the name, if -1 it is recomputed
+ *
+ * Add the @name to the dictionnary @dict if not present.
+ *
+ * Returns the internal copy of the name or NULL in case of internal error
+ */
+const xmlChar *
+xmlDictLookup(xmlDictPtr dict, const xmlChar *name, int len) {
+    unsigned long key, okey, nbi = 0;
+    xmlDictEntryPtr entry;
+    xmlDictEntryPtr insert;
+    const xmlChar *ret;
+
+    if ((dict == NULL) || (name == NULL))
+	return(NULL);
+
+    if (len < 0)
+        len = xmlStrlen(name);
+
+    /*
+     * Check for duplicate and insertion location.
+     */
+    okey = xmlDictComputeKey(name, len);
+    key = okey % dict->size;
+    if (dict->dict[key].valid == 0) {
+	insert = NULL;
+    } else {
+	for (insert = &(dict->dict[key]); insert->next != NULL;
+	     insert = insert->next) {
+#ifdef __GNUC__
+	    if (insert->len == len) {
+		if (!memcmp(insert->name, name, len))
+		    return(insert->name);
+	    }
+#else
+	    if ((insert->len == len) &&
+	        (!xmlStrncmp(insert->name, name, len)))
+		return(insert->name);
+#endif
+	    nbi++;
+	}
+#ifdef __GNUC__
+	if (insert->len == len) {
+	    if (!memcmp(insert->name, name, len))
+		return(insert->name);
+	}
+#else
+	if ((insert->len == len) &&
+	    (!xmlStrncmp(insert->name, name, len)))
+	    return(insert->name);
+#endif
+    }
+
+    if (dict->subdict) {
+	key = okey % dict->subdict->size;
+	if (dict->subdict->dict[key].valid != 0) {
+	    xmlDictEntryPtr tmp;
+
+	    for (tmp = &(dict->subdict->dict[key]); tmp->next != NULL;
+		 tmp = tmp->next) {
+#ifdef __GNUC__
+		if (tmp->len == len) {
+		    if (!memcmp(tmp->name, name, len))
+			return(tmp->name);
+		}
+#else
+		if ((tmp->len == len) &&
+		    (!xmlStrncmp(tmp->name, name, len)))
+		    return(tmp->name);
+#endif
+		nbi++;
+	    }
+#ifdef __GNUC__
+	    if (tmp->len == len) {
+		if (!memcmp(tmp->name, name, len))
+		    return(tmp->name);
+	    }
+#else
+	    if ((tmp->len == len) &&
+		(!xmlStrncmp(tmp->name, name, len)))
+		return(tmp->name);
+#endif
+	}
+	key = okey % dict->size;
+    }
+
+    ret = xmlDictAddString(dict, name, len);
+    if (ret == NULL)
+        return(NULL);
+    if (insert == NULL) {
+	entry = &(dict->dict[key]);
+    } else {
+	entry = xmlMalloc(sizeof(xmlDictEntry));
+	if (entry == NULL)
+	     return(NULL);
+    }
+    entry->name = ret;
+    entry->len = len;
+    entry->next = NULL;
+    entry->valid = 1;
+
+
+    if (insert != NULL) 
+	insert->next = entry;
+
+    dict->nbElems++;
+
+    if ((nbi > MAX_HASH_LEN) &&
+        (dict->size <= ((MAX_DICT_HASH / 2) / MAX_HASH_LEN)))
+	xmlDictGrow(dict, MAX_HASH_LEN * 2 * dict->size);
+    /* Note that entry may have been freed at this point by xmlDictGrow */
+
+    return(ret);
+}
+
+/**
+ * xmlDictExists:
+ * @dict: the dictionnary
+ * @name: the name of the userdata
+ * @len: the length of the name, if -1 it is recomputed
+ *
+ * Check if the @name exists in the dictionnary @dict.
+ *
+ * Returns the internal copy of the name or NULL if not found.
+ */
+const xmlChar *
+xmlDictExists(xmlDictPtr dict, const xmlChar *name, int len) {
+    unsigned long key, okey, nbi = 0;
+    xmlDictEntryPtr insert;
+
+    if ((dict == NULL) || (name == NULL))
+	return(NULL);
+
+    if (len < 0)
+        len = xmlStrlen(name);
+
+    /*
+     * Check for duplicate and insertion location.
+     */
+    okey = xmlDictComputeKey(name, len);
+    key = okey % dict->size;
+    if (dict->dict[key].valid == 0) {
+	insert = NULL;
+    } else {
+	for (insert = &(dict->dict[key]); insert->next != NULL;
+	     insert = insert->next) {
+#ifdef __GNUC__
+	    if (insert->len == len) {
+		if (!memcmp(insert->name, name, len))
+		    return(insert->name);
+	    }
+#else
+	    if ((insert->len == len) &&
+	        (!xmlStrncmp(insert->name, name, len)))
+		return(insert->name);
+#endif
+	    nbi++;
+	}
+#ifdef __GNUC__
+	if (insert->len == len) {
+	    if (!memcmp(insert->name, name, len))
+		return(insert->name);
+	}
+#else
+	if ((insert->len == len) &&
+	    (!xmlStrncmp(insert->name, name, len)))
+	    return(insert->name);
+#endif
+    }
+
+    if (dict->subdict) {
+	key = okey % dict->subdict->size;
+	if (dict->subdict->dict[key].valid != 0) {
+	    xmlDictEntryPtr tmp;
+
+	    for (tmp = &(dict->subdict->dict[key]); tmp->next != NULL;
+		 tmp = tmp->next) {
+#ifdef __GNUC__
+		if (tmp->len == len) {
+		    if (!memcmp(tmp->name, name, len))
+			return(tmp->name);
+		}
+#else
+		if ((tmp->len == len) &&
+		    (!xmlStrncmp(tmp->name, name, len)))
+		    return(tmp->name);
+#endif
+		nbi++;
+	    }
+#ifdef __GNUC__
+	    if (tmp->len == len) {
+		if (!memcmp(tmp->name, name, len))
+		    return(tmp->name);
+	    }
+#else
+	    if ((tmp->len == len) &&
+		(!xmlStrncmp(tmp->name, name, len)))
+		return(tmp->name);
+#endif
+	}
+	key = okey % dict->size;
+    }
+
+    /* not found */
+    return(NULL);
+}
+
+/**
+ * xmlDictQLookup:
+ * @dict: the dictionnary
+ * @prefix: the prefix 
+ * @name: the name
+ *
+ * Add the QName @prefix:@name to the hash @dict if not present.
+ *
+ * Returns the internal copy of the QName or NULL in case of internal error
+ */
+const xmlChar *
+xmlDictQLookup(xmlDictPtr dict, const xmlChar *prefix, const xmlChar *name) {
+    unsigned long okey, key, nbi = 0;
+    xmlDictEntryPtr entry;
+    xmlDictEntryPtr insert;
+    const xmlChar *ret;
+    int len;
+
+    if ((dict == NULL) || (name == NULL))
+	return(NULL);
+
+    len = xmlStrlen(name);
+    if (prefix != NULL)
+        len += 1 + xmlStrlen(prefix);
+
+    /*
+     * Check for duplicate and insertion location.
+     */
+    okey = xmlDictComputeQKey(prefix, name, len);
+    key = okey % dict->size;
+    if (dict->dict[key].valid == 0) {
+	insert = NULL;
+    } else {
+	for (insert = &(dict->dict[key]); insert->next != NULL;
+	     insert = insert->next) {
+	    if ((insert->len == len) &&
+	        (xmlStrQEqual(prefix, name, insert->name)))
+		return(insert->name);
+	    nbi++;
+	}
+	if ((insert->len == len) &&
+	    (xmlStrQEqual(prefix, name, insert->name)))
+	    return(insert->name);
+    }
+
+    if (dict->subdict) {
+	key = okey % dict->subdict->size;
+	if (dict->subdict->dict[key].valid != 0) {
+	    xmlDictEntryPtr tmp;
+	    for (tmp = &(dict->subdict->dict[key]); tmp->next != NULL;
+		 tmp = tmp->next) {
+		if ((tmp->len == len) &&
+		    (xmlStrQEqual(prefix, name, tmp->name)))
+		    return(tmp->name);
+		nbi++;
+	    }
+	    if ((tmp->len == len) &&
+		(xmlStrQEqual(prefix, name, tmp->name)))
+		return(tmp->name);
+	}
+	key = okey % dict->size;
+    }
+
+    ret = xmlDictAddQString(dict, prefix, name, len);
+    if (ret == NULL)
+        return(NULL);
+    if (insert == NULL) {
+	entry = &(dict->dict[key]);
+    } else {
+	entry = xmlMalloc(sizeof(xmlDictEntry));
+	if (entry == NULL)
+	     return(NULL);
+    }
+    entry->name = ret;
+    entry->len = len;
+    entry->next = NULL;
+    entry->valid = 1;
+
+    if (insert != NULL) 
+	insert->next = entry;
+
+    dict->nbElems++;
+
+    if ((nbi > MAX_HASH_LEN) &&
+        (dict->size <= ((MAX_DICT_HASH / 2) / MAX_HASH_LEN)))
+	xmlDictGrow(dict, MAX_HASH_LEN * 2 * dict->size);
+    /* Note that entry may have been freed at this point by xmlDictGrow */
+
+    return(ret);
+}
+
+/**
+ * xmlDictOwns:
+ * @dict: the dictionnary
+ * @str: the string
+ *
+ * check if a string is owned by the disctionary
+ *
+ * Returns 1 if true, 0 if false and -1 in case of error
+ * -1 in case of error
+ */
+int
+xmlDictOwns(xmlDictPtr dict, const xmlChar *str) {
+    xmlDictStringsPtr pool;
+
+    if ((dict == NULL) || (str == NULL))
+	return(-1);
+    pool = dict->strings;
+    while (pool != NULL) {
+        if ((str >= &pool->array[0]) && (str <= pool->free))
+	    return(1);
+	pool = pool->next;
+    }
+    if (dict->subdict)
+        return(xmlDictOwns(dict->subdict, str));
+    return(0);
+}
+
+/**
+ * xmlDictSize:
+ * @dict: the dictionnary
+ *
+ * Query the number of elements installed in the hash @dict.
+ *
+ * Returns the number of elements in the dictionnary or
+ * -1 in case of error
+ */
+int
+xmlDictSize(xmlDictPtr dict) {
+    if (dict == NULL)
+	return(-1);
+    if (dict->subdict)
+        return(dict->nbElems + dict->subdict->nbElems);
+    return(dict->nbElems);
+}
+
+
+#define bottom_dict
+#include "elfgcchack.h"