summaryrefslogtreecommitdiff
path: root/bundle/libxml/entities.c
diff options
context:
space:
mode:
Diffstat (limited to 'bundle/libxml/entities.c')
-rw-r--r--bundle/libxml/entities.c1006
1 files changed, 1006 insertions, 0 deletions
diff --git a/bundle/libxml/entities.c b/bundle/libxml/entities.c
new file mode 100644
index 0000000000..dbdf9ebf32
--- /dev/null
+++ b/bundle/libxml/entities.c
@@ -0,0 +1,1006 @@
+/*
+ * entities.c : implementation for the XML entities handling
+ *
+ * See Copyright for the status of this software.
+ *
+ * daniel@veillard.com
+ */
+
+#define IN_LIBXML
+#include "libxml.h"
+
+#include <string.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <libxml/xmlmemory.h>
+#include <libxml/hash.h>
+#include <libxml/entities.h>
+#include <libxml/parser.h>
+#include <libxml/xmlerror.h>
+#include <libxml/globals.h>
+
+/*
+ * The XML predefined entities.
+ */
+
+struct xmlPredefinedEntityValue {
+ const char *name;
+ const char *value;
+};
+static struct xmlPredefinedEntityValue xmlPredefinedEntityValues[] = {
+ { "lt", "<" },
+ { "gt", ">" },
+ { "apos", "'" },
+ { "quot", "\"" },
+ { "amp", "&" }
+};
+
+/*
+ * TODO: This is GROSS, allocation of a 256 entry hash for
+ * a fixed number of 4 elements !
+ */
+static xmlHashTablePtr xmlPredefinedEntities = NULL;
+
+/*
+ * xmlFreeEntity : clean-up an entity record.
+ */
+static void xmlFreeEntity(xmlEntityPtr entity) {
+ if (entity == NULL) return;
+
+ if ((entity->children) &&
+ (entity == (xmlEntityPtr) entity->children->parent))
+ xmlFreeNodeList(entity->children);
+ if (entity->name != NULL)
+ xmlFree((char *) entity->name);
+ if (entity->ExternalID != NULL)
+ xmlFree((char *) entity->ExternalID);
+ if (entity->SystemID != NULL)
+ xmlFree((char *) entity->SystemID);
+ if (entity->URI != NULL)
+ xmlFree((char *) entity->URI);
+ if (entity->content != NULL)
+ xmlFree((char *) entity->content);
+ if (entity->orig != NULL)
+ xmlFree((char *) entity->orig);
+ xmlFree(entity);
+}
+
+/*
+ * xmlAddEntity : register a new entity for an entities table.
+ */
+static xmlEntityPtr
+xmlAddEntity(xmlDtdPtr dtd, const xmlChar *name, int type,
+ const xmlChar *ExternalID, const xmlChar *SystemID,
+ const xmlChar *content) {
+ xmlEntitiesTablePtr table = NULL;
+ xmlEntityPtr ret;
+
+ if (name == NULL)
+ return(NULL);
+ switch (type) {
+ case XML_INTERNAL_GENERAL_ENTITY:
+ case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
+ case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
+ if (dtd->entities == NULL)
+ dtd->entities = xmlHashCreate(0);
+ table = dtd->entities;
+ break;
+ case XML_INTERNAL_PARAMETER_ENTITY:
+ case XML_EXTERNAL_PARAMETER_ENTITY:
+ if (dtd->pentities == NULL)
+ dtd->pentities = xmlHashCreate(0);
+ table = dtd->pentities;
+ break;
+ case XML_INTERNAL_PREDEFINED_ENTITY:
+ if (xmlPredefinedEntities == NULL)
+ xmlPredefinedEntities = xmlHashCreate(8);
+ table = xmlPredefinedEntities;
+ }
+ if (table == NULL)
+ return(NULL);
+ ret = (xmlEntityPtr) xmlMalloc(sizeof(xmlEntity));
+ if (ret == NULL) {
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlAddEntity: out of memory\n");
+ return(NULL);
+ }
+ memset(ret, 0, sizeof(xmlEntity));
+ ret->type = XML_ENTITY_DECL;
+
+ /*
+ * fill the structure.
+ */
+ ret->name = xmlStrdup(name);
+ ret->etype = (xmlEntityType) type;
+ if (ExternalID != NULL)
+ ret->ExternalID = xmlStrdup(ExternalID);
+ if (SystemID != NULL)
+ ret->SystemID = xmlStrdup(SystemID);
+ if (content != NULL) {
+ ret->length = xmlStrlen(content);
+ ret->content = xmlStrndup(content, ret->length);
+ } else {
+ ret->length = 0;
+ ret->content = NULL;
+ }
+ ret->URI = NULL; /* to be computed by the layer knowing
+ the defining entity */
+ ret->orig = NULL;
+
+ if (xmlHashAddEntry(table, name, ret)) {
+ /*
+ * entity was already defined at another level.
+ */
+ xmlFreeEntity(ret);
+ return(NULL);
+ }
+ return(ret);
+}
+
+/**
+ * xmlInitializePredefinedEntities:
+ *
+ * Set up the predefined entities.
+ */
+void xmlInitializePredefinedEntities(void) {
+ unsigned int i;
+ xmlChar name[50];
+ xmlChar value[50];
+ const char *in;
+ xmlChar *out;
+
+ if (xmlPredefinedEntities != NULL) return;
+
+ xmlPredefinedEntities = xmlCreateEntitiesTable();
+ for (i = 0;i < sizeof(xmlPredefinedEntityValues) /
+ sizeof(xmlPredefinedEntityValues[0]);i++) {
+ in = xmlPredefinedEntityValues[i].name;
+ out = &name[0];
+ for (;(*out++ = (xmlChar) *in);)in++;
+ in = xmlPredefinedEntityValues[i].value;
+ out = &value[0];
+ for (;(*out++ = (xmlChar) *in);)in++;
+
+ xmlAddEntity(NULL, (const xmlChar *) &name[0],
+ XML_INTERNAL_PREDEFINED_ENTITY, NULL, NULL,
+ &value[0]);
+ }
+}
+
+/**
+ * xmlCleanupPredefinedEntities:
+ *
+ * Cleanup up the predefined entities table.
+ */
+void xmlCleanupPredefinedEntities(void) {
+ if (xmlPredefinedEntities == NULL) return;
+
+ xmlFreeEntitiesTable(xmlPredefinedEntities);
+ xmlPredefinedEntities = NULL;
+}
+
+/**
+ * xmlGetPredefinedEntity:
+ * @name: the entity name
+ *
+ * Check whether this name is an predefined entity.
+ *
+ * Returns NULL if not, otherwise the entity
+ */
+xmlEntityPtr
+xmlGetPredefinedEntity(const xmlChar *name) {
+ if (xmlPredefinedEntities == NULL)
+ xmlInitializePredefinedEntities();
+ return((xmlEntityPtr) xmlHashLookup(xmlPredefinedEntities, name));
+}
+
+/**
+ * xmlAddDtdEntity:
+ * @doc: the document
+ * @name: the entity name
+ * @type: the entity type XML_xxx_yyy_ENTITY
+ * @ExternalID: the entity external ID if available
+ * @SystemID: the entity system ID if available
+ * @content: the entity content
+ *
+ * Register a new entity for this document DTD external subset.
+ *
+ * Returns a pointer to the entity or NULL in case of error
+ */
+xmlEntityPtr
+xmlAddDtdEntity(xmlDocPtr doc, const xmlChar *name, int type,
+ const xmlChar *ExternalID, const xmlChar *SystemID,
+ const xmlChar *content) {
+ xmlEntityPtr ret;
+ xmlDtdPtr dtd;
+
+ if (doc == NULL) {
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlAddDtdEntity: doc == NULL !\n");
+ return(NULL);
+ }
+ if (doc->extSubset == NULL) {
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlAddDtdEntity: document without external subset !\n");
+ return(NULL);
+ }
+ dtd = doc->extSubset;
+ ret = xmlAddEntity(dtd, name, type, ExternalID, SystemID, content);
+ if (ret == NULL) return(NULL);
+
+ /*
+ * Link it to the DTD
+ */
+ ret->parent = dtd;
+ ret->doc = dtd->doc;
+ if (dtd->last == NULL) {
+ dtd->children = dtd->last = (xmlNodePtr) ret;
+ } else {
+ dtd->last->next = (xmlNodePtr) ret;
+ ret->prev = dtd->last;
+ dtd->last = (xmlNodePtr) ret;
+ }
+ return(ret);
+}
+
+/**
+ * xmlAddDocEntity:
+ * @doc: the document
+ * @name: the entity name
+ * @type: the entity type XML_xxx_yyy_ENTITY
+ * @ExternalID: the entity external ID if available
+ * @SystemID: the entity system ID if available
+ * @content: the entity content
+ *
+ * Register a new entity for this document.
+ *
+ * Returns a pointer to the entity or NULL in case of error
+ */
+xmlEntityPtr
+xmlAddDocEntity(xmlDocPtr doc, const xmlChar *name, int type,
+ const xmlChar *ExternalID, const xmlChar *SystemID,
+ const xmlChar *content) {
+ xmlEntityPtr ret;
+ xmlDtdPtr dtd;
+
+ if (doc == NULL) {
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlAddDocEntity: document is NULL !\n");
+ return(NULL);
+ }
+ if (doc->intSubset == NULL) {
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlAddDocEntity: document without internal subset !\n");
+ return(NULL);
+ }
+ dtd = doc->intSubset;
+ ret = xmlAddEntity(dtd, name, type, ExternalID, SystemID, content);
+ if (ret == NULL) return(NULL);
+
+ /*
+ * Link it to the DTD
+ */
+ ret->parent = dtd;
+ ret->doc = dtd->doc;
+ if (dtd->last == NULL) {
+ dtd->children = dtd->last = (xmlNodePtr) ret;
+ } else {
+ dtd->last->next = (xmlNodePtr) ret;
+ ret->prev = dtd->last;
+ dtd->last = (xmlNodePtr) ret;
+ }
+ return(ret);
+}
+
+/**
+ * xmlGetEntityFromTable:
+ * @table: an entity table
+ * @name: the entity name
+ * @parameter: look for parameter entities
+ *
+ * Do an entity lookup in the table.
+ * returns the corresponding parameter entity, if found.
+ *
+ * Returns A pointer to the entity structure or NULL if not found.
+ */
+static xmlEntityPtr
+xmlGetEntityFromTable(xmlEntitiesTablePtr table, const xmlChar *name) {
+ return((xmlEntityPtr) xmlHashLookup(table, name));
+}
+
+/**
+ * xmlGetParameterEntity:
+ * @doc: the document referencing the entity
+ * @name: the entity name
+ *
+ * Do an entity lookup in the internal and external subsets and
+ * returns the corresponding parameter entity, if found.
+ *
+ * Returns A pointer to the entity structure or NULL if not found.
+ */
+xmlEntityPtr
+xmlGetParameterEntity(xmlDocPtr doc, const xmlChar *name) {
+ xmlEntitiesTablePtr table;
+ xmlEntityPtr ret;
+
+ if (doc == NULL)
+ return(NULL);
+ if ((doc->intSubset != NULL) && (doc->intSubset->pentities != NULL)) {
+ table = (xmlEntitiesTablePtr) doc->intSubset->pentities;
+ ret = xmlGetEntityFromTable(table, name);
+ if (ret != NULL)
+ return(ret);
+ }
+ if ((doc->extSubset != NULL) && (doc->extSubset->pentities != NULL)) {
+ table = (xmlEntitiesTablePtr) doc->extSubset->pentities;
+ return(xmlGetEntityFromTable(table, name));
+ }
+ return(NULL);
+}
+
+/**
+ * xmlGetDtdEntity:
+ * @doc: the document referencing the entity
+ * @name: the entity name
+ *
+ * Do an entity lookup in the DTD entity hash table and
+ * returns the corresponding entity, if found.
+ * Note: the first argument is the document node, not the DTD node.
+ *
+ * Returns A pointer to the entity structure or NULL if not found.
+ */
+xmlEntityPtr
+xmlGetDtdEntity(xmlDocPtr doc, const xmlChar *name) {
+ xmlEntitiesTablePtr table;
+
+ if (doc == NULL)
+ return(NULL);
+ if ((doc->extSubset != NULL) && (doc->extSubset->entities != NULL)) {
+ table = (xmlEntitiesTablePtr) doc->extSubset->entities;
+ return(xmlGetEntityFromTable(table, name));
+ }
+ return(NULL);
+}
+
+/**
+ * xmlGetDocEntity:
+ * @doc: the document referencing the entity
+ * @name: the entity name
+ *
+ * Do an entity lookup in the document entity hash table and
+ * returns the corresponding entity, otherwise a lookup is done
+ * in the predefined entities too.
+ *
+ * Returns A pointer to the entity structure or NULL if not found.
+ */
+xmlEntityPtr
+xmlGetDocEntity(xmlDocPtr doc, const xmlChar *name) {
+ xmlEntityPtr cur;
+ xmlEntitiesTablePtr table;
+
+ if (doc != NULL) {
+ if ((doc->intSubset != NULL) && (doc->intSubset->entities != NULL)) {
+ table = (xmlEntitiesTablePtr) doc->intSubset->entities;
+ cur = xmlGetEntityFromTable(table, name);
+ if (cur != NULL)
+ return(cur);
+ }
+ if (doc->standalone != 1) {
+ if ((doc->extSubset != NULL) &&
+ (doc->extSubset->entities != NULL)) {
+ table = (xmlEntitiesTablePtr) doc->extSubset->entities;
+ cur = xmlGetEntityFromTable(table, name);
+ if (cur != NULL)
+ return(cur);
+ }
+ }
+ }
+ if (xmlPredefinedEntities == NULL)
+ xmlInitializePredefinedEntities();
+ table = xmlPredefinedEntities;
+ return(xmlGetEntityFromTable(table, name));
+}
+
+/*
+ * [2] Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD]
+ * | [#x10000-#x10FFFF]
+ * any Unicode character, excluding the surrogate blocks, FFFE, and FFFF.
+ */
+#define IS_CHAR(c) \
+ (((c) == 0x09) || ((c) == 0x0a) || ((c) == 0x0d) || \
+ (((c) >= 0x20) && ((c) != 0xFFFE) && ((c) != 0xFFFF)))
+
+/*
+ * A buffer used for converting entities to their equivalent and back.
+ */
+static int static_buffer_size = 0;
+static xmlChar *static_buffer = NULL;
+
+static int growBuffer(void) {
+ static_buffer_size *= 2;
+ static_buffer = (xmlChar *) xmlRealloc(static_buffer,
+ static_buffer_size * sizeof(xmlChar));
+ if (static_buffer == NULL) {
+ xmlGenericError(xmlGenericErrorContext, "malloc failed\n");
+ return(-1);
+ }
+ return(0);
+}
+
+
+/**
+ * xmlEncodeEntities:
+ * @doc: the document containing the string
+ * @input: A string to convert to XML.
+ *
+ * Do a global encoding of a string, replacing the predefined entities
+ * and non ASCII values with their entities and CharRef counterparts.
+ *
+ * TODO: remove xmlEncodeEntities, once we are not afraid of breaking binary
+ * compatibility
+ *
+ * People must migrate their code to xmlEncodeEntitiesReentrant !
+ * This routine will issue a warning when encountered.
+ *
+ * Returns A newly allocated string with the substitution done.
+ */
+const xmlChar *
+xmlEncodeEntities(xmlDocPtr doc, const xmlChar *input) {
+ const xmlChar *cur = input;
+ xmlChar *out = static_buffer;
+ static int warning = 1;
+ int html = 0;
+
+
+ if (warning) {
+ xmlGenericError(xmlGenericErrorContext,
+ "Deprecated API xmlEncodeEntities() used\n");
+ xmlGenericError(xmlGenericErrorContext,
+ " change code to use xmlEncodeEntitiesReentrant()\n");
+ warning = 0;
+ }
+
+ if (input == NULL) return(NULL);
+ if (doc != NULL)
+ html = (doc->type == XML_HTML_DOCUMENT_NODE);
+
+ if (static_buffer == NULL) {
+ static_buffer_size = 1000;
+ static_buffer = (xmlChar *)
+ xmlMalloc(static_buffer_size * sizeof(xmlChar));
+ if (static_buffer == NULL) {
+ xmlGenericError(xmlGenericErrorContext, "malloc failed\n");
+ return(NULL);
+ }
+ out = static_buffer;
+ }
+ while (*cur != '\0') {
+ if (out - static_buffer > static_buffer_size - 100) {
+ int indx = out - static_buffer;
+
+ growBuffer();
+ out = &static_buffer[indx];
+ }
+
+ /*
+ * By default one have to encode at least '<', '>', '"' and '&' !
+ */
+ if (*cur == '<') {
+ *out++ = '&';
+ *out++ = 'l';
+ *out++ = 't';
+ *out++ = ';';
+ } else if (*cur == '>') {
+ *out++ = '&';
+ *out++ = 'g';
+ *out++ = 't';
+ *out++ = ';';
+ } else if (*cur == '&') {
+ *out++ = '&';
+ *out++ = 'a';
+ *out++ = 'm';
+ *out++ = 'p';
+ *out++ = ';';
+ } else if (*cur == '"') {
+ *out++ = '&';
+ *out++ = 'q';
+ *out++ = 'u';
+ *out++ = 'o';
+ *out++ = 't';
+ *out++ = ';';
+ } else if ((*cur == '\'') && (!html)) {
+ *out++ = '&';
+ *out++ = 'a';
+ *out++ = 'p';
+ *out++ = 'o';
+ *out++ = 's';
+ *out++ = ';';
+ } else if (((*cur >= 0x20) && (*cur < 0x80)) ||
+ (*cur == '\n') || (*cur == '\r') || (*cur == '\t')) {
+ /*
+ * default case, just copy !
+ */
+ *out++ = *cur;
+#ifndef USE_UTF_8
+ } else if ((sizeof(xmlChar) == 1) && (*cur >= 0x80)) {
+ char buf[10], *ptr;
+
+ snprintf(buf, sizeof(buf), "&#%d;", *cur);
+ buf[sizeof(buf) - 1] = 0;
+ ptr = buf;
+ while (*ptr != 0) *out++ = *ptr++;
+#endif
+ } else if (IS_CHAR(*cur)) {
+ char buf[10], *ptr;
+
+ snprintf(buf, sizeof(buf), "&#%d;", *cur);
+ buf[sizeof(buf) - 1] = 0;
+ ptr = buf;
+ while (*ptr != 0) *out++ = *ptr++;
+ }
+#if 0
+ else {
+ /*
+ * default case, this is not a valid char !
+ * Skip it...
+ */
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlEncodeEntities: invalid char %d\n", (int) *cur);
+ }
+#endif
+ cur++;
+ }
+ *out++ = 0;
+ return(static_buffer);
+}
+
+/*
+ * Macro used to grow the current buffer.
+ */
+#define growBufferReentrant() { \
+ buffer_size *= 2; \
+ buffer = (xmlChar *) \
+ xmlRealloc(buffer, buffer_size * sizeof(xmlChar)); \
+ if (buffer == NULL) { \
+ xmlGenericError(xmlGenericErrorContext, "realloc failed\n"); \
+ return(NULL); \
+ } \
+}
+
+
+/**
+ * xmlEncodeEntitiesReentrant:
+ * @doc: the document containing the string
+ * @input: A string to convert to XML.
+ *
+ * Do a global encoding of a string, replacing the predefined entities
+ * and non ASCII values with their entities and CharRef counterparts.
+ * Contrary to xmlEncodeEntities, this routine is reentrant, and result
+ * must be deallocated.
+ *
+ * Returns A newly allocated string with the substitution done.
+ */
+xmlChar *
+xmlEncodeEntitiesReentrant(xmlDocPtr doc, const xmlChar *input) {
+ const xmlChar *cur = input;
+ xmlChar *buffer = NULL;
+ xmlChar *out = NULL;
+ int buffer_size = 0;
+ int html = 0;
+
+ if (input == NULL) return(NULL);
+ if (doc != NULL)
+ html = (doc->type == XML_HTML_DOCUMENT_NODE);
+
+ /*
+ * allocate an translation buffer.
+ */
+ buffer_size = 1000;
+ buffer = (xmlChar *) xmlMalloc(buffer_size * sizeof(xmlChar));
+ if (buffer == NULL) {
+ xmlGenericError(xmlGenericErrorContext, "malloc failed\n");
+ return(NULL);
+ }
+ out = buffer;
+
+ while (*cur != '\0') {
+ if (out - buffer > buffer_size - 100) {
+ int indx = out - buffer;
+
+ growBufferReentrant();
+ out = &buffer[indx];
+ }
+
+ /*
+ * By default one have to encode at least '<', '>', '"' and '&' !
+ */
+ if (*cur == '<') {
+ *out++ = '&';
+ *out++ = 'l';
+ *out++ = 't';
+ *out++ = ';';
+ } else if (*cur == '>') {
+ *out++ = '&';
+ *out++ = 'g';
+ *out++ = 't';
+ *out++ = ';';
+ } else if (*cur == '&') {
+ *out++ = '&';
+ *out++ = 'a';
+ *out++ = 'm';
+ *out++ = 'p';
+ *out++ = ';';
+ } else if (*cur == '"') {
+ *out++ = '&';
+ *out++ = 'q';
+ *out++ = 'u';
+ *out++ = 'o';
+ *out++ = 't';
+ *out++ = ';';
+#if 0
+ } else if ((*cur == '\'') && (!html)) {
+ *out++ = '&';
+ *out++ = 'a';
+ *out++ = 'p';
+ *out++ = 'o';
+ *out++ = 's';
+ *out++ = ';';
+#endif
+ } else if (((*cur >= 0x20) && (*cur < 0x80)) ||
+ (*cur == '\n') || (*cur == '\r') || (*cur == '\t')) {
+ /*
+ * default case, just copy !
+ */
+ *out++ = *cur;
+ } else if (*cur >= 0x80) {
+ if (((doc != NULL) && (doc->encoding != NULL)) || (html)) {
+ /*
+ * Bjørn Reese <br@sseusa.com> provided the patch
+ xmlChar xc;
+ xc = (*cur & 0x3F) << 6;
+ if (cur[1] != 0) {
+ xc += *(++cur) & 0x3F;
+ *out++ = xc;
+ } else
+ */
+ *out++ = *cur;
+ } else {
+ /*
+ * We assume we have UTF-8 input.
+ */
+ char buf[10], *ptr;
+ int val = 0, l = 1;
+
+ if (*cur < 0xC0) {
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlEncodeEntitiesReentrant : input not UTF-8\n");
+ if (doc != NULL)
+ doc->encoding = xmlStrdup(BAD_CAST "ISO-8859-1");
+ snprintf(buf, sizeof(buf), "&#%d;", *cur);
+ buf[sizeof(buf) - 1] = 0;
+ ptr = buf;
+ while (*ptr != 0) *out++ = *ptr++;
+ 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))) {
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlEncodeEntitiesReentrant : char out of range\n");
+ if (doc != NULL)
+ doc->encoding = xmlStrdup(BAD_CAST "ISO-8859-1");
+ snprintf(buf, sizeof(buf), "&#%d;", *cur);
+ buf[sizeof(buf) - 1] = 0;
+ ptr = buf;
+ while (*ptr != 0) *out++ = *ptr++;
+ cur++;
+ continue;
+ }
+ /*
+ * We could do multiple things here. Just save as a char ref
+ */
+ if (html)
+ snprintf(buf, sizeof(buf), "&#%d;", val);
+ else
+ snprintf(buf, sizeof(buf), "&#x%X;", val);
+ buf[sizeof(buf) - 1] = 0;
+ ptr = buf;
+ while (*ptr != 0) *out++ = *ptr++;
+ cur += l;
+ continue;
+ }
+ } else if (IS_CHAR(*cur)) {
+ char buf[10], *ptr;
+
+ snprintf(buf, sizeof(buf), "&#%d;", *cur);
+ buf[sizeof(buf) - 1] = 0;
+ ptr = buf;
+ while (*ptr != 0) *out++ = *ptr++;
+ }
+#if 0
+ else {
+ /*
+ * default case, this is not a valid char !
+ * Skip it...
+ */
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlEncodeEntities: invalid char %d\n", (int) *cur);
+ }
+#endif
+ cur++;
+ }
+ *out++ = 0;
+ return(buffer);
+}
+
+/**
+ * xmlEncodeSpecialChars:
+ * @doc: the document containing the string
+ * @input: A string to convert to XML.
+ *
+ * Do a global encoding of a string, replacing the predefined entities
+ * this routine is reentrant, and result must be deallocated.
+ *
+ * Returns A newly allocated string with the substitution done.
+ */
+xmlChar *
+xmlEncodeSpecialChars(xmlDocPtr doc, const xmlChar *input) {
+ const xmlChar *cur = input;
+ xmlChar *buffer = NULL;
+ xmlChar *out = NULL;
+ int buffer_size = 0;
+ int html = 0;
+
+ if (input == NULL) return(NULL);
+ if (doc != NULL)
+ html = (doc->type == XML_HTML_DOCUMENT_NODE);
+
+ /*
+ * allocate an translation buffer.
+ */
+ buffer_size = 1000;
+ buffer = (xmlChar *) xmlMalloc(buffer_size * sizeof(xmlChar));
+ if (buffer == NULL) {
+ xmlGenericError(xmlGenericErrorContext, "malloc failed\n");
+ return(NULL);
+ }
+ out = buffer;
+
+ while (*cur != '\0') {
+ if (out - buffer > buffer_size - 10) {
+ int indx = out - buffer;
+
+ growBufferReentrant();
+ out = &buffer[indx];
+ }
+
+ /*
+ * By default one have to encode at least '<', '>', '"' and '&' !
+ */
+ if (*cur == '<') {
+ *out++ = '&';
+ *out++ = 'l';
+ *out++ = 't';
+ *out++ = ';';
+ } else if (*cur == '>') {
+ *out++ = '&';
+ *out++ = 'g';
+ *out++ = 't';
+ *out++ = ';';
+ } else if (*cur == '&') {
+ *out++ = '&';
+ *out++ = 'a';
+ *out++ = 'm';
+ *out++ = 'p';
+ *out++ = ';';
+ } else if (*cur == '"') {
+ *out++ = '&';
+ *out++ = 'q';
+ *out++ = 'u';
+ *out++ = 'o';
+ *out++ = 't';
+ *out++ = ';';
+ } else {
+ /*
+ * Works because on UTF-8, all extended sequences cannot
+ * result in bytes in the ASCII range.
+ */
+ *out++ = *cur;
+ }
+ cur++;
+ }
+ *out++ = 0;
+ return(buffer);
+}
+
+/**
+ * xmlCreateEntitiesTable:
+ *
+ * create and initialize an empty entities hash table.
+ *
+ * Returns the xmlEntitiesTablePtr just created or NULL in case of error.
+ */
+xmlEntitiesTablePtr
+xmlCreateEntitiesTable(void) {
+ return((xmlEntitiesTablePtr) xmlHashCreate(0));
+}
+
+/**
+ * xmlFreeEntitiesTable:
+ * @table: An entity table
+ *
+ * Deallocate the memory used by an entities hash table.
+ */
+void
+xmlFreeEntitiesTable(xmlEntitiesTablePtr table) {
+ xmlHashFree(table, (xmlHashDeallocator) xmlFreeEntity);
+}
+
+/**
+ * xmlCopyEntity:
+ * @ent: An entity
+ *
+ * Build a copy of an entity
+ *
+ * Returns the new xmlEntitiesPtr or NULL in case of error.
+ */
+static xmlEntityPtr
+xmlCopyEntity(xmlEntityPtr ent) {
+ xmlEntityPtr cur;
+
+ cur = (xmlEntityPtr) xmlMalloc(sizeof(xmlEntity));
+ if (cur == NULL) {
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlCopyEntity: out of memory !\n");
+ return(NULL);
+ }
+ memset(cur, 0, sizeof(xmlEntity));
+ cur->type = XML_ENTITY_DECL;
+
+ cur->etype = ent->etype;
+ if (ent->name != NULL)
+ cur->name = xmlStrdup(ent->name);
+ if (ent->ExternalID != NULL)
+ cur->ExternalID = xmlStrdup(ent->ExternalID);
+ if (ent->SystemID != NULL)
+ cur->SystemID = xmlStrdup(ent->SystemID);
+ if (ent->content != NULL)
+ cur->content = xmlStrdup(ent->content);
+ if (ent->orig != NULL)
+ cur->orig = xmlStrdup(ent->orig);
+ if (ent->URI != NULL)
+ cur->URI = xmlStrdup(ent->URI);
+ return(cur);
+}
+
+/**
+ * xmlCopyEntitiesTable:
+ * @table: An entity table
+ *
+ * Build a copy of an entity table.
+ *
+ * Returns the new xmlEntitiesTablePtr or NULL in case of error.
+ */
+xmlEntitiesTablePtr
+xmlCopyEntitiesTable(xmlEntitiesTablePtr table) {
+ return(xmlHashCopy(table, (xmlHashCopier) xmlCopyEntity));
+}
+
+/**
+ * xmlDumpEntityDecl:
+ * @buf: An XML buffer.
+ * @ent: An entity table
+ *
+ * This will dump the content of the entity table as an XML DTD definition
+ */
+void
+xmlDumpEntityDecl(xmlBufferPtr buf, xmlEntityPtr ent) {
+ switch (ent->etype) {
+ case XML_INTERNAL_GENERAL_ENTITY:
+ xmlBufferWriteChar(buf, "<!ENTITY ");
+ xmlBufferWriteCHAR(buf, ent->name);
+ xmlBufferWriteChar(buf, " ");
+ if (ent->orig != NULL)
+ xmlBufferWriteQuotedString(buf, ent->orig);
+ else
+ xmlBufferWriteQuotedString(buf, ent->content);
+ xmlBufferWriteChar(buf, ">\n");
+ break;
+ case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
+ xmlBufferWriteChar(buf, "<!ENTITY ");
+ xmlBufferWriteCHAR(buf, ent->name);
+ if (ent->ExternalID != NULL) {
+ xmlBufferWriteChar(buf, " PUBLIC ");
+ xmlBufferWriteQuotedString(buf, ent->ExternalID);
+ xmlBufferWriteChar(buf, " ");
+ xmlBufferWriteQuotedString(buf, ent->SystemID);
+ } else {
+ xmlBufferWriteChar(buf, " SYSTEM ");
+ xmlBufferWriteQuotedString(buf, ent->SystemID);
+ }
+ xmlBufferWriteChar(buf, ">\n");
+ break;
+ case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
+ xmlBufferWriteChar(buf, "<!ENTITY ");
+ xmlBufferWriteCHAR(buf, ent->name);
+ if (ent->ExternalID != NULL) {
+ xmlBufferWriteChar(buf, " PUBLIC ");
+ xmlBufferWriteQuotedString(buf, ent->ExternalID);
+ xmlBufferWriteChar(buf, " ");
+ xmlBufferWriteQuotedString(buf, ent->SystemID);
+ } else {
+ xmlBufferWriteChar(buf, " SYSTEM ");
+ xmlBufferWriteQuotedString(buf, ent->SystemID);
+ }
+ if (ent->content != NULL) { /* Should be true ! */
+ xmlBufferWriteChar(buf, " NDATA ");
+ if (ent->orig != NULL)
+ xmlBufferWriteCHAR(buf, ent->orig);
+ else
+ xmlBufferWriteCHAR(buf, ent->content);
+ }
+ xmlBufferWriteChar(buf, ">\n");
+ break;
+ case XML_INTERNAL_PARAMETER_ENTITY:
+ xmlBufferWriteChar(buf, "<!ENTITY % ");
+ xmlBufferWriteCHAR(buf, ent->name);
+ xmlBufferWriteChar(buf, " ");
+ if (ent->orig == NULL)
+ xmlBufferWriteQuotedString(buf, ent->content);
+ else
+ xmlBufferWriteQuotedString(buf, ent->orig);
+ xmlBufferWriteChar(buf, ">\n");
+ break;
+ case XML_EXTERNAL_PARAMETER_ENTITY:
+ xmlBufferWriteChar(buf, "<!ENTITY % ");
+ xmlBufferWriteCHAR(buf, ent->name);
+ if (ent->ExternalID != NULL) {
+ xmlBufferWriteChar(buf, " PUBLIC ");
+ xmlBufferWriteQuotedString(buf, ent->ExternalID);
+ xmlBufferWriteChar(buf, " ");
+ xmlBufferWriteQuotedString(buf, ent->SystemID);
+ } else {
+ xmlBufferWriteChar(buf, " SYSTEM ");
+ xmlBufferWriteQuotedString(buf, ent->SystemID);
+ }
+ xmlBufferWriteChar(buf, ">\n");
+ break;
+ default:
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlDumpEntitiesDecl: internal: unknown type %d\n",
+ ent->etype);
+ }
+}
+
+/**
+ * xmlDumpEntitiesTable:
+ * @buf: An XML buffer.
+ * @table: An entity table
+ *
+ * This will dump the content of the entity table as an XML DTD definition
+ */
+void
+xmlDumpEntitiesTable(xmlBufferPtr buf, xmlEntitiesTablePtr table) {
+ xmlHashScan(table, (xmlHashScanner)xmlDumpEntityDecl, buf);
+}
View Lorry Controller Status