relaxng.c.svn-base

这是一个用于解析xml文件的类库。使用这个类库

 * Handle a redefinition of attribute error
 */
static void
xmlRngPErrMemory(xmlRelaxNGParserCtxtPtr ctxt, const char *extra)
{
    xmlStructuredErrorFunc schannel = NULL;
    xmlGenericErrorFunc channel = NULL;
    void *data = NULL;

    if (ctxt != NULL) {
        channel = ctxt->error;
        data = ctxt->userData;
        ctxt->nbErrors++;
        schannel = ctxt->serror;
    }
    if (extra)
        __xmlRaiseError(schannel, channel, data,
                        NULL, NULL, XML_FROM_RELAXNGP,
                        XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra,
                        NULL, NULL, 0, 0,
                        "Memory allocation failed : %s\n", extra);
    else
        __xmlRaiseError(schannel, channel, data,
                        NULL, NULL, XML_FROM_RELAXNGP,
                        XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL,
                        NULL, NULL, 0, 0, "Memory allocation failed\n");
}

/**
 * xmlRngVErrMemory:
 * @ctxt:  a Relax-NG validation context
 * @extra:  extra informations
 *
 * Handle a redefinition of attribute error
 */
static void
xmlRngVErrMemory(xmlRelaxNGValidCtxtPtr ctxt, const char *extra)
{
    xmlStructuredErrorFunc schannel = NULL;
    xmlGenericErrorFunc channel = NULL;
    void *data = NULL;

    if (ctxt != NULL) {
        channel = ctxt->error;
        data = ctxt->userData;
        ctxt->nbErrors++;
        schannel = ctxt->serror;
    }
    if (extra)
        __xmlRaiseError(schannel, channel, data,
                        NULL, NULL, XML_FROM_RELAXNGV,
                        XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra,
                        NULL, NULL, 0, 0,
                        "Memory allocation failed : %s\n", extra);
    else
        __xmlRaiseError(schannel, channel, data,
                        NULL, NULL, XML_FROM_RELAXNGV,
                        XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL,
                        NULL, NULL, 0, 0, "Memory allocation failed\n");
}

/**
 * xmlRngPErr:
 * @ctxt:  a Relax-NG parser context
 * @node:  the node raising the error
 * @error:  the error code
 * @msg:  message
 * @str1:  extra info
 * @str2:  extra info
 *
 * Handle a Relax NG Parsing error
 */
static void
xmlRngPErr(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node, int error,
           const char *msg, const xmlChar * str1, const xmlChar * str2)
{
    xmlStructuredErrorFunc schannel = NULL;
    xmlGenericErrorFunc channel = NULL;
    void *data = NULL;

    if (ctxt != NULL) {
        channel = ctxt->error;
        data = ctxt->userData;
        ctxt->nbErrors++;
        schannel = ctxt->serror;
    }
    __xmlRaiseError(schannel, channel, data,
                    NULL, node, XML_FROM_RELAXNGP,
                    error, XML_ERR_ERROR, NULL, 0,
                    (const char *) str1, (const char *) str2, NULL, 0, 0,
                    msg, str1, str2);
}

/**
 * xmlRngVErr:
 * @ctxt:  a Relax-NG validation context
 * @node:  the node raising the error
 * @error:  the error code
 * @msg:  message
 * @str1:  extra info
 * @str2:  extra info
 *
 * Handle a Relax NG Validation error
 */
static void
xmlRngVErr(xmlRelaxNGValidCtxtPtr ctxt, xmlNodePtr node, int error,
           const char *msg, const xmlChar * str1, const xmlChar * str2)
{
    xmlStructuredErrorFunc schannel = NULL;
    xmlGenericErrorFunc channel = NULL;
    void *data = NULL;

    if (ctxt != NULL) {
        channel = ctxt->error;
        data = ctxt->userData;
        ctxt->nbErrors++;
        schannel = ctxt->serror;
    }
    __xmlRaiseError(schannel, channel, data,
                    NULL, node, XML_FROM_RELAXNGV,
                    error, XML_ERR_ERROR, NULL, 0,
                    (const char *) str1, (const char *) str2, NULL, 0, 0,
                    msg, str1, str2);
}

/************************************************************************
 * 									*
 * 		Preliminary type checking interfaces			*
 * 									*
 ************************************************************************/

/**
 * xmlRelaxNGTypeHave:
 * @data:  data needed for the library
 * @type:  the type name
 * @value:  the value to check
 *
 * Function provided by a type library to check if a type is exported
 *
 * Returns 1 if yes, 0 if no and -1 in case of error.
 */
typedef int (*xmlRelaxNGTypeHave) (void *data, const xmlChar * type);

/**
 * xmlRelaxNGTypeCheck:
 * @data:  data needed for the library
 * @type:  the type name
 * @value:  the value to check
 * @result:  place to store the result if needed
 *
 * Function provided by a type library to check if a value match a type
 *
 * Returns 1 if yes, 0 if no and -1 in case of error.
 */
typedef int (*xmlRelaxNGTypeCheck) (void *data, const xmlChar * type,
                                    const xmlChar * value, void **result,
                                    xmlNodePtr node);

/**
 * xmlRelaxNGFacetCheck:
 * @data:  data needed for the library
 * @type:  the type name
 * @facet:  the facet name
 * @val:  the facet value
 * @strval:  the string value
 * @value:  the value to check
 *
 * Function provided by a type library to check a value facet
 *
 * Returns 1 if yes, 0 if no and -1 in case of error.
 */
typedef int (*xmlRelaxNGFacetCheck) (void *data, const xmlChar * type,
                                     const xmlChar * facet,
                                     const xmlChar * val,
                                     const xmlChar * strval, void *value);

/**
 * xmlRelaxNGTypeFree:
 * @data:  data needed for the library
 * @result:  the value to free
 *
 * Function provided by a type library to free a returned result
 */
typedef void (*xmlRelaxNGTypeFree) (void *data, void *result);

/**
 * xmlRelaxNGTypeCompare:
 * @data:  data needed for the library
 * @type:  the type name
 * @value1:  the first value
 * @value2:  the second value
 *
 * Function provided by a type library to compare two values accordingly
 * to a type.
 *
 * Returns 1 if yes, 0 if no and -1 in case of error.
 */
typedef int (*xmlRelaxNGTypeCompare) (void *data, const xmlChar * type,
                                      const xmlChar * value1,
                                      xmlNodePtr ctxt1,
                                      void *comp1,
                                      const xmlChar * value2,
                                      xmlNodePtr ctxt2);
typedef struct _xmlRelaxNGTypeLibrary xmlRelaxNGTypeLibrary;
typedef xmlRelaxNGTypeLibrary *xmlRelaxNGTypeLibraryPtr;
struct _xmlRelaxNGTypeLibrary {
    const xmlChar *namespace;   /* the datatypeLibrary value */
    void *data;                 /* data needed for the library */
    xmlRelaxNGTypeHave have;    /* the export function */
    xmlRelaxNGTypeCheck check;  /* the checking function */
    xmlRelaxNGTypeCompare comp; /* the compare function */
    xmlRelaxNGFacetCheck facet; /* the facet check function */
    xmlRelaxNGTypeFree freef;   /* the freeing function */
};

/************************************************************************
 * 									*
 * 			Allocation functions				*
 * 									*
 ************************************************************************/
static void xmlRelaxNGFreeGrammar(xmlRelaxNGGrammarPtr grammar);
static void xmlRelaxNGFreeDefine(xmlRelaxNGDefinePtr define);
static void xmlRelaxNGNormExtSpace(xmlChar * value);
static void xmlRelaxNGFreeInnerSchema(xmlRelaxNGPtr schema);
static int xmlRelaxNGEqualValidState(xmlRelaxNGValidCtxtPtr ctxt
                                     ATTRIBUTE_UNUSED,
                                     xmlRelaxNGValidStatePtr state1,
                                     xmlRelaxNGValidStatePtr state2);
static void xmlRelaxNGFreeValidState(xmlRelaxNGValidCtxtPtr ctxt,
                                     xmlRelaxNGValidStatePtr state);

/**
 * xmlRelaxNGFreeDocument:
 * @docu:  a document structure
 *
 * Deallocate a RelaxNG document structure.
 */
static void
xmlRelaxNGFreeDocument(xmlRelaxNGDocumentPtr docu)
{
    if (docu == NULL)
        return;

    if (docu->href != NULL)
        xmlFree(docu->href);
    if (docu->doc != NULL)
        xmlFreeDoc(docu->doc);
    if (docu->schema != NULL)
        xmlRelaxNGFreeInnerSchema(docu->schema);
    xmlFree(docu);
}

/**
 * xmlRelaxNGFreeDocumentList:
 * @docu:  a list of  document structure
 *
 * Deallocate a RelaxNG document structures.
 */
static void
xmlRelaxNGFreeDocumentList(xmlRelaxNGDocumentPtr docu)
{
    xmlRelaxNGDocumentPtr next;

    while (docu != NULL) {
        next = docu->next;
        xmlRelaxNGFreeDocument(docu);
        docu = next;
    }
}

/**
 * xmlRelaxNGFreeInclude:
 * @incl:  a include structure
 *
 * Deallocate a RelaxNG include structure.
 */
static void
xmlRelaxNGFreeInclude(xmlRelaxNGIncludePtr incl)
{
    if (incl == NULL)
        return;

    if (incl->href != NULL)
        xmlFree(incl->href);
    if (incl->doc != NULL)
        xmlFreeDoc(incl->doc);
    if (incl->schema != NULL)
        xmlRelaxNGFree(incl->schema);
    xmlFree(incl);
}

/**
 * xmlRelaxNGFreeIncludeList:
 * @incl:  a include structure list
 *
 * Deallocate a RelaxNG include structure.
 */
static void
xmlRelaxNGFreeIncludeList(xmlRelaxNGIncludePtr incl)
{
    xmlRelaxNGIncludePtr next;

    while (incl != NULL) {
        next = incl->next;
        xmlRelaxNGFreeInclude(incl);
        incl = next;
    }
}

/**
 * xmlRelaxNGNewRelaxNG:
 * @ctxt:  a Relax-NG validation context (optional)
 *
 * Allocate a new RelaxNG structure.
 *
 * Returns the newly allocated structure or NULL in case or error
 */
static xmlRelaxNGPtr
xmlRelaxNGNewRelaxNG(xmlRelaxNGParserCtxtPtr ctxt)
{
    xmlRelaxNGPtr ret;

    ret = (xmlRelaxNGPtr) xmlMalloc(sizeof(xmlRelaxNG));
    if (ret == NULL) {
        xmlRngPErrMemory(ctxt, NULL);
        return (NULL);
    }
    memset(ret, 0, sizeof(xmlRelaxNG));

    return (ret);
}

/**
 * xmlRelaxNGFreeInnerSchema:
 * @schema:  a schema structure
 *
 * Deallocate a RelaxNG schema structure.
 */
static void
xmlRelaxNGFreeInnerSchema(xmlRelaxNGPtr schema)
{
    if (schema == NULL)
        return;

    if (schema->doc != NULL)
        xmlFreeDoc(schema->doc);
    if (schema->defTab != NULL) {
        int i;

        for (i = 0; i < schema->defNr; i++)
            xmlRelaxNGFreeDefine(schema->defTab[i]);
        xmlFree(schema->defTab);
    }

    xmlFree(schema);
}

/**
 * xmlRelaxNGFree:
 * @schema:  a schema structure
 *
 * Deallocate a RelaxNG structure.
 */
void
xmlRelaxNGFree(xmlRelaxNGPtr schema)
{
    if (schema == NULL)
        return;

    if (schema->topgrammar != NULL)
        xmlRelaxNGFreeGrammar(schema->topgrammar);
    if (schema->doc != NULL)
        xmlFreeDoc(schema->doc);
    if (schema->documents != NULL)
        xmlRelaxNGFreeDocumentList(schema->documents);
    if (schema->includes != NULL)
        xmlRelaxNGFreeIncludeList(schema->includes);
    if (schema->defTab != NULL) {
        int i;

        for (i = 0; i < schema->defNr; i++)
            xmlRelaxNGFreeDefine(schema->defTab[i]);
        xmlFree(schema->defTab);
    }

    xmlFree(schema);
}

/**
 * xmlRelaxNGNewGrammar:
 * @ctxt:  a Relax-NG validation context (optional)
 *
 * Allocate a new RelaxNG grammar.
 *
 * Returns the newly allocated structure or NULL in case or error
 */
static xmlRelaxNGGrammarPtr
xmlRelaxNGNewGrammar(xmlRelaxNGParserCtxtPtr ctxt)
{
    xmlRelaxNGGrammarPtr ret;

    ret = (xmlRelaxNGGrammarPtr) xmlMalloc(sizeof(xmlRelaxNGGrammar));
    if (ret == NULL) {
        xmlRngPErrMemory(ctxt, NULL);
        return (NULL);
    }
    memset(ret, 0, sizeof(xmlRelaxNGGrammar));

    return (ret);
}

/**
 * xmlRelaxNGFreeGrammar:
 * @grammar:  a grammar structure
 *
 * Deallocate a RelaxNG grammar structure.
 */
static void
xmlRelaxNGFreeGrammar(xmlRelaxNGGrammarPtr grammar)
{
    if (grammar == NULL)
        return;

    if (grammar->children != NULL) {
        xmlRelaxNGFreeGrammar(grammar->children);
    }