clib

package
v0.0.0-...-3dcec2c Latest Latest
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 Go to latest Published: Apr 22, 2019 License: MIT Imports: 10 Imported by: 6

Documentation

Overview

Package clib holds all of the dirty C interaction for go-libxml2.

Although this package is visible to the outside world, the API in this package is in NO WAY guaranteed to be stable. This package was initially meant to be placed in an internal package so that the API was not available to the outside world.

The only reason this is visible is so that the REALLY advanced users can abuse the quasi-direct-C-API to overcome shortcomings of the "public" API, if any (and of course, you WILL send me a pull request later... won't you?)

Please DO NOT rely on this API and expect that it will keep backcompat. When the need arises, it WILL be changed, and if you are not ready for it, your code WILL break in horrible horrible ways. You have been warned.

Index

Constants

View Source 
const (
	MaxEncodingLength        = 256
	MaxAttributeNameLength   = 1024
	MaxElementNameLength     = 1024
	MaxNamespaceURILength    = 4096
	MaxValueBufferSize       = 4096
	MaxXPathExpressionLength = 4096
)

Variables

View Source 
var (
	ErrAttributeNotFound      = errors.New("attribute not found")
	ErrAttributeNameTooLong   = errors.New("attribute name too long")
	ErrElementNameTooLong     = errors.New("element name too long")
	ErrNamespaceURITooLong    = errors.New("namespace uri too long")
	ErrValueTooLong           = errors.New("value too long")
	ErrXPathExpressionTooLong = errors.New("xpath expression too long")
	// ErrInvalidAttribute is returned when the Attribute struct (probably
	// the pointer to the underlying C struct is not valid)
	ErrInvalidAttribute = errors.New("invalid attribute")
	ErrInvalidArgument  = errors.New("invalid argument")
	// ErrInvalidDocument is returned when the Document struct (probably
	// the pointer to the underlying C struct is not valid)
	ErrInvalidDocument = errors.New("invalid document")
	// ErrInvalidParser is returned when the Parser struct (probably
	// the pointer to the underlying C struct is not valid)
	ErrInvalidParser = errors.New("invalid parser")
	// ErrInvalidNamespace is returned when the Namespace struct (probably
	// the pointer to the underlying C struct is not valid)
	ErrInvalidNamespace = errors.New("invalid namespace")
	// ErrInvalidNode is returned when the Node struct (probably
	// the pointer to the underlying C struct is not valid)
	ErrInvalidNode     = errors.New("invalid node")
	ErrInvalidNodeName = errors.New("invalid node name")
	// ErrInvalidXPathContext is returned when the XPathContext struct (probably
	// the pointer to the underlying C struct is not valid)
	ErrInvalidXPathContext = errors.New("invalid xpath context")
	// ErrInvalidXPathExpression is returned when the XPathExpression struct (probably
	// the pointer to the underlying C struct is not valid)
	ErrInvalidXPathExpression = errors.New("invalid xpath expression")
	// ErrInvalidXPathObject is returned when the XPathObject struct (probably
	// the pointer to the underlying C struct is not valid)
	ErrInvalidXPathObject = errors.New("invalid xpath object")
	// ErrInvalidSchema is returned when the Schema struct (probably
	// the pointer to the underlying C struct is not valid)
	ErrInvalidSchema                 = errors.New("invalid schema")
	ErrNodeNotFound                  = errors.New("node not found")
	ErrXPathEmptyResult              = errors.New("empty xpath result")
	ErrXPathCompileFailure           = errors.New("xpath compilation failed")
	ErrXPathNamespaceRegisterFailure = errors.New("cannot register namespace")
)

Functions

func HTMLReadDoc 

func HTMLReadDoc(content, url, encoding string, opts int) (uintptr, error)

func ReportErrors 

func ReportErrors(b bool)

ReportErrors *globally* changes the behavior of reporting errors. By default libxml2 spews out lots of data to stderr. When you call this function with a `false` value, all those messages are surpressed. When you call this function a `true` value, the default behavior is restored

func SplitPrefixLocal 

func SplitPrefixLocal(s string) (string, string)

func XMLAddChild 

func XMLAddChild(n PtrSource, child PtrSource) error

func XMLAppendText 

func XMLAppendText(n PtrSource, s string) error

func XMLC14NDocDumpMemory 

func XMLC14NDocDumpMemory(d PtrSource, mode int, withComments bool) (string, error)

func XMLChildNodes 

func XMLChildNodes(n PtrSource) ([]uintptr, error)

func XMLCreateAttributeNS 

func XMLCreateAttributeNS(doc PtrSource, uri, k, v string) (uintptr, error)

func XMLCreateDocument 

func XMLCreateDocument(version, encoding string) uintptr

func XMLCreateElement 

func XMLCreateElement(d PtrSource, name string) (uintptr, error)

func XMLCreateElementNS 

func XMLCreateElementNS(doc PtrSource, nsuri, name string) (uintptr, error)

func XMLCreateMemoryParserCtxt 

func XMLCreateMemoryParserCtxt(s string, o int) (uintptr, error)

func XMLCtxtReadMemory 

func XMLCtxtReadMemory(ctx PtrSource, file string, baseURL string, encoding string, options int) (uintptr, error)

func XMLDocCopyNode 

func XMLDocCopyNode(n PtrSource, d PtrSource, extended int) (uintptr, error)

func XMLDocumentElement 

func XMLDocumentElement(doc PtrSource) (uintptr, error)

func XMLDocumentEncoding 

func XMLDocumentEncoding(doc PtrSource) string

func XMLDocumentStandalone 

func XMLDocumentStandalone(doc PtrSource) int

func XMLDocumentString 

func XMLDocumentString(doc PtrSource, encoding string, format bool) string

func XMLDocumentURI 

func XMLDocumentURI(doc PtrSource) string

func XMLDocumentVersion 

func XMLDocumentVersion(doc PtrSource) string

func XMLElementAttributes 

func XMLElementAttributes(n PtrSource) ([]uintptr, error)

func XMLElementGetAttributeNode 

func XMLElementGetAttributeNode(n PtrSource, name string) (uintptr, error)

func XMLElementNamespaces 

func XMLElementNamespaces(n PtrSource) ([]uintptr, error)

func XMLEncodeEntitiesReentrant 

func XMLEncodeEntitiesReentrant(docptr *C.xmlDoc, s string) (*C.xmlChar, error)

func XMLEvalXPath 

func XMLEvalXPath(x PtrSource, expr PtrSource) (uintptr, error)

func XMLFirstChild 

func XMLFirstChild(n PtrSource) (uintptr, error)

func XMLFreeDoc 

func XMLFreeDoc(doc PtrSource) error

func XMLFreeNode 

func XMLFreeNode(n PtrSource) error

func XMLFreeParserCtxt 

func XMLFreeParserCtxt(ctx PtrSource) error

func XMLFreeProp 

func XMLFreeProp(attr PtrSource) error

func XMLHasChildNodes 

func XMLHasChildNodes(n PtrSource) bool

func XMLLastChild 

func XMLLastChild(n PtrSource) (uintptr, error)

func XMLLocalName 

func XMLLocalName(n PtrSource) string

func XMLLookupNamespacePrefix 

func XMLLookupNamespacePrefix(n PtrSource, href string) (string, error)

func XMLLookupNamespaceURI 

func XMLLookupNamespaceURI(n PtrSource, prefix string) (string, error)

func XMLNamespaceFree 

func XMLNamespaceFree(n PtrSource)

func XMLNamespaceHref 

func XMLNamespaceHref(n PtrSource) string

func XMLNamespacePrefix 

func XMLNamespacePrefix(n PtrSource) string

func XMLNamespaceURI 

func XMLNamespaceURI(n PtrSource) string

func XMLNewCDataBlock 

func XMLNewCDataBlock(doc PtrSource, txt string) (uintptr, error)

func XMLNewComment 

func XMLNewComment(txt string) (uintptr, error)

func XMLNewDocNode 

func XMLNewDocNode(doc PtrSource, ns PtrSource, local, content string) (uintptr, error)

func XMLNewDocProp 

func XMLNewDocProp(doc PtrSource, k, v string) (uintptr, error)

func XMLNewNode 

func XMLNewNode(ns PtrSource, name string) (uintptr, error)

func XMLNewNs 

func XMLNewNs(n PtrSource, nsuri, prefix string) (uintptr, error)

func XMLNewText 

func XMLNewText(txt string) (uintptr, error)

func XMLNextSibling 

func XMLNextSibling(n PtrSource) (uintptr, error)

func XMLNodeName 

func XMLNodeName(n PtrSource) (string, error)

func XMLNodeSetBase 

func XMLNodeSetBase(doc PtrSource, s string)

func XMLNodeValue 

func XMLNodeValue(n PtrSource) (string, error)

func XMLOwnerDocument 

func XMLOwnerDocument(n PtrSource) (uintptr, error)

func XMLParentNode 

func XMLParentNode(n PtrSource) (uintptr, error)

func XMLParseDocument 

func XMLParseDocument(ctx PtrSource) error

func XMLParseInNodeContext 

func XMLParseInNodeContext(n PtrSource, data string, o int) (uintptr, error)

func XMLPrefix 

func XMLPrefix(n PtrSource) string

func XMLPreviousSibling 

func XMLPreviousSibling(n PtrSource) (uintptr, error)

func XMLRemoveChild 

func XMLRemoveChild(n PtrSource, t PtrSource) error

func XMLSchemaFree 

func XMLSchemaFree(s PtrSource) error

func XMLSchemaParse 

func XMLSchemaParse(buf []byte) (uintptr, error)

func XMLSchemaParseFromFile 

func XMLSchemaParseFromFile(path string) (uintptr, error)

func XMLSchemaValidateDocument 

func XMLSchemaValidateDocument(schema PtrSource, document PtrSource) []error

func XMLSearchNs 

func XMLSearchNs(doc PtrSource, n PtrSource, prefix string) (uintptr, error)

func XMLSearchNsByHref 

func XMLSearchNsByHref(doc PtrSource, n PtrSource, uri string) (uintptr, error)

func XMLSetDocumentElement 

func XMLSetDocumentElement(doc PtrSource, n PtrSource) error

func XMLSetDocumentEncoding 

func XMLSetDocumentEncoding(doc PtrSource, e string)

func XMLSetDocumentStandalone 

func XMLSetDocumentStandalone(doc PtrSource, v int)

func XMLSetDocumentVersion 

func XMLSetDocumentVersion(doc PtrSource, v string)

func XMLSetNodeName 

func XMLSetNodeName(n PtrSource, name string) error

func XMLSetNodeValue 

func XMLSetNodeValue(n PtrSource, value string) error

func XMLSetNs 

func XMLSetNs(n PtrSource, ns PtrSource) error

func XMLSetProp 

func XMLSetProp(n PtrSource, name, value string) error

func XMLSetTreeDoc 

func XMLSetTreeDoc(n PtrSource, d PtrSource) error

func XMLTextContent 

func XMLTextContent(n PtrSource) string

func XMLTextData 

func XMLTextData(n PtrSource) string

func XMLToString 

func XMLToString(n PtrSource, format int, docencoding bool) string

func XMLUnsetNsProp 

func XMLUnsetNsProp(n PtrSource, ns PtrSource, name string) error

func XMLUnsetProp 

func XMLUnsetProp(n PtrSource, name string) error

func XMLXPathCompile 

func XMLXPathCompile(s string) (uintptr, error)

func XMLXPathContextSetContextNode 

func XMLXPathContextSetContextNode(x PtrSource, n PtrSource) error

func XMLXPathFreeCompExpr 

func XMLXPathFreeCompExpr(x PtrSource) error

func XMLXPathFreeContext 

func XMLXPathFreeContext(x PtrSource) error

func XMLXPathFreeObject 

func XMLXPathFreeObject(x PtrSource)

func XMLXPathNSLookup 

func XMLXPathNSLookup(x PtrSource, prefix string) (string, error)

func XMLXPathNewContext 

func XMLXPathNewContext(n PtrSource) (uintptr, error)

func XMLXPathObjectBool 

func XMLXPathObjectBool(x PtrSource) bool

func XMLXPathObjectFloat64 

func XMLXPathObjectFloat64(x PtrSource) float64

func XMLXPathObjectNodeList 

func XMLXPathObjectNodeList(x PtrSource) ([]uintptr, error)

func XMLXPathObjectNodeListLen 

func XMLXPathObjectNodeListLen(x PtrSource) int

func XMLXPathRegisterNS 

func XMLXPathRegisterNS(x PtrSource, prefix, nsuri string) error

Types

type C14NMode 

type C14NMode int

C14NMode represents the C14N mode supported by libxml2

type ErrNamespaceNotFound 

type ErrNamespaceNotFound struct {
	Target string
}

func (ErrNamespaceNotFound) Error 

func (e ErrNamespaceNotFound) Error() string

type PtrSource 

type PtrSource interface {
	Pointer() uintptr
}

PtrSource is the single interface that connects the rest of libxml2 package with this pacakge. The clib packages does not really care what sort of object you pass to these low-level functions, as long as the arguments fulfill this interface.

Obviously this causes problems if you pass the an Element node where a Document node is expected, but it is the caller's responsibility to align the argument list.

type XMLNodeType 

type XMLNodeType int

XMLNodeType identifies the type of the underlying C struct 

const (
	ElementNode XMLNodeType = iota + 1
	AttributeNode
	TextNode
	CDataSectionNode
	EntityRefNode
	EntityNode
	PiNode
	CommentNode
	DocumentNode
	DocumentTypeNode
	DocumentFragNode
	NotationNode
	HTMLDocumentNode
	DTDNode
	ElementDecl
	AttributeDecl
	EntityDecl
	NamespaceDecl
	XIncludeStart
	XIncludeEnd
	DocbDocumentNode
)

func XMLGetNodeType 

func XMLGetNodeType(n PtrSource) XMLNodeType

func XMLGetNodeTypeRaw 

func XMLGetNodeTypeRaw(n uintptr) XMLNodeType

func (XMLNodeType) String 

func (i XMLNodeType) String() string

String returns the string representation of this XMLNodeType

type XPathObjectType 

type XPathObjectType int
const (
	XPathUndefinedType XPathObjectType = iota
	XPathNodeSetType
	XPathBooleanType
	XPathNumberType
	XPathStringType
	XPathPointType
	XPathRangeType
	XPathLocationSetType
	XPathUsersType
	XPathXSLTTreeType
)

func XMLXPathObjectType 

func XMLXPathObjectType(x PtrSource) XPathObjectType

func (XPathObjectType) String 

func (i XPathObjectType) String() string

String returns the stringified version of XPathObjectType

Source Files

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