attributes.h File Reference

#include <libxml/tree.h>
#include "xsltexports.h"

Include dependency graph for attributes.h:

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Functions
XSLTPUBFUN void XSLTCALL	xsltParseStylesheetAttributeSet (xsltStylesheetPtr style, xmlNodePtr cur)
XSLTPUBFUN void XSLTCALL	xsltFreeAttributeSetsHashes (xsltStylesheetPtr style)
XSLTPUBFUN void XSLTCALL	xsltApplyAttributeSet (xsltTransformContextPtr ctxt, xmlNodePtr node, xmlNodePtr inst, const xmlChar *attributes)
XSLTPUBFUN void XSLTCALL	xsltResolveStylesheetAttributeSet (xsltStylesheetPtr style)

Function Documentation

xsltApplyAttributeSet()

XSLTPUBFUN void XSLTCALL xsltApplyAttributeSet	(	xsltTransformContextPtr	ctxt,
		xmlNodePtr	node,
		xmlNodePtr	inst,
		const xmlChar *	attrSets
	)

xsltApplyAttributeSet: @ctxt: the XSLT stylesheet @node: the node in the source tree. @inst: the attribute node "xsl:use-attribute-sets" @attrSets: the list of QNames of the attribute-sets to be applied

Apply the xsl:use-attribute-sets. If @attrSets is NULL, then @inst will be used to exctract this value. If both, @attrSets and @inst, are NULL, then this will do nothing.

Definition at line 1086 of file attributes.c.

{
    const xmlChar *ncname = NULL;
    const xmlChar *prefix = NULL;
    const xmlChar *curstr, *endstr;
    xsltAttrSetPtr set;
    xsltStylesheetPtr style;
 
    if (attrSets == NULL) {
    if (inst == NULL)
        return;
    else {
        /*
        * Extract the value from @inst.
        */
        if (inst->type == XML_ATTRIBUTE_NODE) {
        if ( ((xmlAttrPtr) inst)->children != NULL)
            attrSets = ((xmlAttrPtr) inst)->children->content;
 
        }
        if (attrSets == NULL) {
        /*
        * TODO: Return an error?
        */
        return;
        }
    }
    }
    /*
    * Parse/apply the list of QNames.
    */
    curstr = attrSets;
    while (*curstr != 0) {
        while (IS_BLANK(*curstr))
            curstr++;
        if (*curstr == 0)
            break;
        endstr = curstr;
        while ((*endstr != 0) && (!IS_BLANK(*endstr)))
            endstr++;
        curstr = xmlDictLookup(ctxt->dict, curstr, endstr - curstr);
        if (curstr) {
            xmlNsPtr ns;
            const xmlChar *nsUri = NULL;
 
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
            xsltGenericDebug(xsltGenericDebugContext,
                             "apply attribute set %s\n", curstr);
#endif
 
            if (xmlValidateQName(curstr, 0)) {
                xsltTransformError(ctxt, NULL, inst,
                    "The name '%s' in use-attribute-sets is not a valid "
                    "QName.\n", curstr);
                return;
            }
 
            ncname = xsltSplitQName(ctxt->dict, curstr, &prefix);
            if (prefix != NULL) {
            ns = xmlSearchNs(inst->doc, inst, prefix);
                if (ns == NULL) {
                    xsltTransformError(ctxt, NULL, inst,
                        "use-attribute-set : No namespace found for QName "
                        "'%s:%s'\n", prefix, ncname);
                    return;
                }
                nsUri = ns->href;
            }
 
            style = ctxt->style;
 
#ifdef WITH_DEBUGGER
            if ((style != NULL) &&
        (style->attributeSets != NULL) &&
        (ctxt->debugStatus != XSLT_DEBUG_NONE))
        {
                set = xmlHashLookup2(style->attributeSets, ncname, nsUri);
                if ((set != NULL) && (set->attrs != NULL) &&
                    (set->attrs->attr != NULL))
                    xslHandleDebugger(set->attrs->attr->parent, node, NULL,
            ctxt);
            }
#endif
        /*
        * Lookup the referenced attribute-set. All attribute sets were
            * moved to the top stylesheet so there's no need to iterate
            * imported stylesheets
        */
            set = xmlHashLookup2(style->attributeSets, ncname, nsUri);
            if (set != NULL) {
                xsltAttrElemPtr cur = set->attrs;
                while (cur != NULL) {
                    if (cur->attr != NULL) {
                        xsltAttribute(ctxt, node, cur->attr,
                            cur->attr->psvi);
                    }
                    cur = cur->next;
                }
            }
        }
        curstr = endstr;
    }
}

Referenced by xsltAttrListTemplateProcess(), xsltCopy(), and xsltElement().

xsltFreeAttributeSetsHashes()

XSLTPUBFUN void XSLTCALL xsltFreeAttributeSetsHashes

(

xsltStylesheetPtr

style

)

xsltFreeAttributeSetsHashes: @style: an XSLT stylesheet

Free up the memory used by attribute sets

Definition at line 1205 of file attributes.c.

                                                     {
    if (style->attributeSets != NULL)
    xmlHashFree((xmlHashTablePtr) style->attributeSets,
            xsltFreeAttributeSetsEntry);
    style->attributeSets = NULL;
}

Referenced by xsltFreeStylesheet().

xsltParseStylesheetAttributeSet()

XSLTPUBFUN void XSLTCALL xsltParseStylesheetAttributeSet	(	xsltStylesheetPtr	style,
		xmlNodePtr	cur
	)

xsltParseStylesheetAttributeSet: @style: the XSLT stylesheet @cur: the "attribute-set" element

parse an XSLT stylesheet attribute-set element

Definition at line 348 of file attributes.c.

                                                                         {
    const xmlChar *ncname;
    const xmlChar *prefix;
    const xmlChar *nsUri = NULL;
    xmlChar *value;
    xmlNodePtr child;
    xsltAttrSetPtr set;
 
    if ((cur == NULL) || (style == NULL) || (cur->type != XML_ELEMENT_NODE))
    return;
 
    value = xmlGetNsProp(cur, (const xmlChar *)"name", NULL);
    if ((value == NULL) || (*value == 0)) {
    xsltGenericError(xsltGenericErrorContext,
         "xsl:attribute-set : name is missing\n");
        if (value)
        xmlFree(value);
    return;
    }
 
    if (xmlValidateQName(value, 0)) {
        xsltTransformError(NULL, style, cur,
            "xsl:attribute-set : The name '%s' is not a valid QName.\n",
            value);
        style->errors++;
        xmlFree(value);
        return;
    }
 
    ncname = xsltSplitQName(style->dict, value, &prefix);
    xmlFree(value);
    value = NULL;
    if (prefix != NULL) {
        xmlNsPtr ns = xmlSearchNs(style->doc, cur, prefix);
        if (ns == NULL) {
            xsltTransformError(NULL, style, cur,
                "xsl:attribute-set : No namespace found for QName '%s:%s'\n",
                prefix, ncname);
            style->errors++;
            return;
        }
        nsUri = ns->href;
    }
 
    if (style->attributeSets == NULL) {
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
    xsltGenericDebug(xsltGenericDebugContext,
        "creating attribute set table\n");
#endif
    style->attributeSets = xmlHashCreate(10);
    }
    if (style->attributeSets == NULL)
    return;
 
    set = xmlHashLookup2(style->attributeSets, ncname, nsUri);
    if (set == NULL) {
        set = xsltNewAttrSet();
        if (set == NULL)
            return;
        xmlHashAddEntry2(style->attributeSets, ncname, nsUri, set);
    }
 
    /*
    * Parse the content. Only xsl:attribute elements are allowed.
    */
    child = cur->children;
    while (child != NULL) {
    /*
    * Report invalid nodes.
    */
    if ((child->type != XML_ELEMENT_NODE) ||
        (child->ns == NULL) ||
        (! IS_XSLT_ELEM(child)))
    {
        if (child->type == XML_ELEMENT_NODE)
        xsltTransformError(NULL, style, child,
            "xsl:attribute-set : unexpected child %s\n",
                         child->name);
        else
        xsltTransformError(NULL, style, child,
            "xsl:attribute-set : child of unexpected type\n");
    } else if (!IS_XSLT_NAME(child, "attribute")) {
        xsltTransformError(NULL, style, child,
        "xsl:attribute-set : unexpected child xsl:%s\n",
        child->name);
    } else {
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
        xsltGenericDebug(xsltGenericDebugContext,
        "add attribute to list %s\n", ncname);
#endif
            xsltStylePreCompute(style, child);
            if (child->children != NULL) {
#ifdef XSLT_REFACTORED
                xsltParseSequenceConstructor(XSLT_CCTXT(style),
                                             child->children);
#else
                xsltParseTemplateContent(style, child);
#endif
            }
            if (child->psvi == NULL) {
                xsltTransformError(NULL, style, child,
                    "xsl:attribute-set : internal error, attribute %s not "
                    "compiled\n", child->name);
            }
            else {
            set->attrs = xsltAddAttrElemList(set->attrs, child);
            }
    }
 
    child = child->next;
    }
 
    /*
    * Process attribute "use-attribute-sets".
    */
    value = xmlGetNsProp(cur, BAD_CAST "use-attribute-sets", NULL);
    if (value != NULL) {
    const xmlChar *curval, *endval;
    curval = value;
    while (*curval != 0) {
        while (IS_BLANK(*curval)) curval++;
        if (*curval == 0)
        break;
        endval = curval;
        while ((*endval != 0) && (!IS_BLANK(*endval))) endval++;
        curval = xmlDictLookup(style->dict, curval, endval - curval);
        if (curval) {
        const xmlChar *ncname2 = NULL;
        const xmlChar *prefix2 = NULL;
                const xmlChar *nsUri2 = NULL;
 
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
        xsltGenericDebug(xsltGenericDebugContext,
            "xsl:attribute-set : %s adds use %s\n", ncname, curval);
#endif
 
                if (xmlValidateQName(curval, 0)) {
                    xsltTransformError(NULL, style, cur,
                        "xsl:attribute-set : The name '%s' in "
                        "use-attribute-sets is not a valid QName.\n", curval);
                    style->errors++;
                    xmlFree(value);
                    return;
                }
 
        ncname2 = xsltSplitQName(style->dict, curval, &prefix2);
                if (prefix2 != NULL) {
                    xmlNsPtr ns2 = xmlSearchNs(style->doc, cur, prefix2);
                    if (ns2 == NULL) {
                        xsltTransformError(NULL, style, cur,
                            "xsl:attribute-set : No namespace found for QName "
                            "'%s:%s' in use-attribute-sets\n",
                            prefix2, ncname2);
                        style->errors++;
                        xmlFree(value);
                        return;
                    }
                    nsUri2 = ns2->href;
                }
                set->useAttrSets = xsltAddUseAttrSetList(set->useAttrSets,
                                                         ncname2, nsUri2);
        }
        curval = endval;
    }
    xmlFree(value);
    value = NULL;
    }
 
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
    xsltGenericDebug(xsltGenericDebugContext,
    "updated attribute list %s\n", ncname);
#endif
}

Referenced by xsltParseStylesheetTop().

xsltResolveStylesheetAttributeSet()

XSLTPUBFUN void XSLTCALL xsltResolveStylesheetAttributeSet

(

xsltStylesheetPtr

style

)

xsltResolveStylesheetAttributeSet: @style: the XSLT stylesheet

resolve the references between attribute sets.

Definition at line 670 of file attributes.c.

                                                           {
    xsltStylesheetPtr cur;
    xsltAttrSetContext asctx;
 
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
    xsltGenericDebug(xsltGenericDebugContext,
        "Resolving attribute sets references\n");
#endif
    asctx.topStyle = style;
    cur = style;
    while (cur != NULL) {
    if (cur->attributeSets != NULL) {
        if (style->attributeSets == NULL) {
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
        xsltGenericDebug(xsltGenericDebugContext,
            "creating attribute set table\n");
#endif
        style->attributeSets = xmlHashCreate(10);
        }
            asctx.style = cur;
        xmlHashScanFull(cur->attributeSets, xsltResolveSASCallback,
                            &asctx);
 
            if (cur != style) {
                /*
                 * the attribute lists have either been migrated to style
                 * or freed directly in xsltResolveSASCallback()
                 */
                xmlHashFree(cur->attributeSets, NULL);
                cur->attributeSets = NULL;
            }
    }
    cur = xsltNextImport(cur);
    }
}

Referenced by xsltParseStylesheetUser().