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virxml: Add virXMLPropTristateBool
Convenience function to return the value of a yes / no XML attribute. Signed-off-by: Tim Wiederhake <twiederh@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
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@ -3550,6 +3550,7 @@ virXMLParseHelper;
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virXMLPickShellSafeComment;
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virXMLPickShellSafeComment;
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virXMLPropString;
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virXMLPropString;
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virXMLPropStringLimit;
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virXMLPropStringLimit;
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virXMLPropTristateBool;
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virXMLSaveFile;
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virXMLSaveFile;
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virXMLValidateAgainstSchema;
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virXMLValidateAgainstSchema;
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virXMLValidatorFree;
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virXMLValidatorFree;
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@ -558,6 +558,50 @@ virXMLNodeContentString(xmlNodePtr node)
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}
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}
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/**
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* virXMLPropTristateBool:
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* @node: XML dom node pointer
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* @name: Name of the property (attribute) to get
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* @flags: Bitwise or of virXMLPropFlags
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* @result: The returned value
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*
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* Convenience function to return value of a yes / no attribute.
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*
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* Returns 1 in case of success in which case @result is set,
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* or 0 if the attribute is not present,
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* or -1 and reports an error on failure.
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*/
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int
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virXMLPropTristateBool(xmlNodePtr node,
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const char* name,
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virXMLPropFlags flags,
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virTristateBool *result)
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{
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g_autofree char *tmp = NULL;
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int val;
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if (!(tmp = virXMLPropString(node, name))) {
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if (!(flags & VIR_XML_PROP_REQUIRED))
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return 0;
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virReportError(VIR_ERR_XML_ERROR,
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_("Missing required attribute '%s' in element '%s'"),
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name, node->name);
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return -1;
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}
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if ((val = virTristateBoolTypeFromString(tmp)) <= 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("Invalid value for attribute '%s' in element '%s': '%s'. Expected 'yes' or 'no'"),
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name, node->name, tmp);
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return -1;
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}
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*result = val;
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return 1;
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}
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/**
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/**
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* virXPathBoolean:
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* virXPathBoolean:
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* @xpath: the XPath string to evaluate
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* @xpath: the XPath string to evaluate
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@ -28,10 +28,18 @@
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#include <libxml/relaxng.h>
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#include <libxml/relaxng.h>
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#include "virbuffer.h"
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#include "virbuffer.h"
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#include "virenum.h"
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xmlXPathContextPtr virXMLXPathContextNew(xmlDocPtr xml)
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xmlXPathContextPtr virXMLXPathContextNew(xmlDocPtr xml)
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G_GNUC_WARN_UNUSED_RESULT;
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G_GNUC_WARN_UNUSED_RESULT;
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typedef enum {
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VIR_XML_PROP_OPTIONAL = 0, /* Attribute may be absent */
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VIR_XML_PROP_REQUIRED = 1 << 0, /* Attribute may not be absent */
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} virXMLPropFlags;
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int
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int
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virXPathBoolean(const char *xpath,
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virXPathBoolean(const char *xpath,
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xmlXPathContextPtr ctxt);
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xmlXPathContextPtr ctxt);
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@ -95,6 +103,13 @@ virXMLPropStringLimit(xmlNodePtr node,
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char *
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char *
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virXMLNodeContentString(xmlNodePtr node);
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virXMLNodeContentString(xmlNodePtr node);
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int
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virXMLPropTristateBool(xmlNodePtr node,
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const char *name,
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virXMLPropFlags flags,
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virTristateBool *result)
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ATTRIBUTE_NONNULL(0) ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(3);
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/* Internal function; prefer the macros below. */
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/* Internal function; prefer the macros below. */
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xmlDocPtr
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xmlDocPtr
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virXMLParseHelper(int domcode,
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virXMLParseHelper(int domcode,
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