ConstructingParser

Companion object ConstructingParser

class ConstructingParser extends ConstructingHandler with ExternalSources with MarkupParser

An xml parser. parses XML and invokes callback methods of a MarkupHandler. Don't forget to call next.ch on a freshly instantiated parser in order to initialize it. If you get the parser from the object method, initialization is already done for you.

object parseFromURL {
  def main(args: Array[String]) {
    val url = args(0)
    val src = scala.io.Source.fromURL(url)
    val cpa = scala.xml.parsing.ConstructingParser.fromSource(src, false) // fromSource initializes automatically
    val doc = cpa.document()

    // let's see what it is
    val ppr = new scala.xml.PrettyPrinter(80, 5)
    val ele = doc.docElem
    println("finished parsing")
    val out = ppr.format(ele)
    println(out)
  }
}

Linear Supertypes

MarkupParser, MarkupParserCommon, TokenTests, ExternalSources, ConstructingHandler, MarkupHandler, AnyRef, Any

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By Inheritance

Inherited

ConstructingParser
MarkupParser
MarkupParserCommon
TokenTests
ExternalSources
ConstructingHandler
MarkupHandler
AnyRef
Any

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Visibility

Public
Protected

Instance Constructors

new ConstructingParser(input: Source, preserveWS: Boolean)

Type Members

type AttributesType = (MetaData, NamespaceBinding)
Definition Classes
MarkupParser → MarkupParserCommon
type ElementType = NodeSeq
Definition Classes
MarkupParser → MarkupParserCommon
type InputType = Source
Definition Classes
MarkupParser → MarkupParserCommon
type NamespaceType = NamespaceBinding
Definition Classes
MarkupParser → MarkupParserCommon
type PositionType = Int
Definition Classes
MarkupParser → MarkupParserCommon

Value Members

final def !=(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def ##(): Int
Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean
Definition Classes
AnyRef → Any
def appendText(pos: Int, ts: NodeBuffer, txt: String): Unit
Definition Classes
MarkupParser
final def asInstanceOf[T0]: T0
Definition Classes
Any
def attListDecl(name: String, attList: List[AttrDecl]): Unit
Definition Classes
MarkupHandler
def attrDecl(): Unit
```
<! attlist := ATTLIST
```
Definition Classes
MarkupParser
val cbuf: collection.mutable.StringBuilder
character buffer, for names
character buffer, for names
Attributes
protected
Definition Classes
MarkupParser
def ch: Char
The library and compiler parsers had the interesting distinction of different behavior for nextch (a function for which there are a total of two plausible behaviors, so we know the design space was fully explored.) One of them returned the value of nextch before the increment and one of them the new value.
The library and compiler parsers had the interesting distinction of different behavior for nextch (a function for which there are a total of two plausible behaviors, so we know the design space was fully explored.) One of them returned the value of nextch before the increment and one of them the new value. So to unify code we have to at least temporarily abstract over the nextchs.
Definition Classes
MarkupParser → MarkupParserCommon
def ch_returning_nextch: Char
Attributes
protected
Definition Classes
MarkupParser → MarkupParserCommon
def checkPubID(s: String): Boolean
Definition Classes
TokenTests
def checkSysID(s: String): Boolean
Definition Classes
TokenTests
def clone(): AnyRef
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
def comment(pos: Int, txt: String): Comment
callback method invoked by MarkupParser after parsing comment.
callback method invoked by MarkupParser after parsing comment.
Definition Classes
ConstructingHandler → MarkupHandler
def content(pscope: NamespaceBinding): NodeSeq
```
content1 ::=  '<' content1 | '&' charref ...
```
Definition Classes
MarkupParser
def content1(pscope: NamespaceBinding, ts: NodeBuffer): Unit
```
'<' content1 ::=  ...
```
Definition Classes
MarkupParser
val curInput: Source
Attributes
protected
Definition Classes
MarkupParser
var decls: List[Decl]
Definition Classes
MarkupHandler
val doc: Document
Attributes
protected
Definition Classes
MarkupParser

def document(): Document

[22]     prolog      ::= XMLDecl? Misc* (doctypedecl Misc*)?
[23]     XMLDecl     ::= ' VersionInfo EncodingDecl? SDDecl? S? '?>'
[24]     VersionInfo ::= S 'version' Eq ("'" VersionNum "'" | '"' VersionNum '"')
[25]     Eq          ::= S? '=' S?
[26]     VersionNum  ::= '1.0'
[27]     Misc        ::= Comment | PI | S

Definition Classes: MarkupParser

val dtd: DTD
Definition Classes
MarkupParser
def elem(pos: Int, pre: String, label: String, attrs: MetaData, pscope: NamespaceBinding, empty: Boolean, nodes: NodeSeq): NodeSeq
callback method invoked by MarkupParser after parsing an element, between the elemStart and elemEnd callbacks
callback method invoked by MarkupParser after parsing an element, between the elemStart and elemEnd callbacks
pos
the position in the source file
pre
the prefix
label
the local name
attrs
the attributes (metadata)
empty
true if the element was previously empty; false otherwise.
Definition Classes
ConstructingHandler → MarkupHandler
def elemDecl(n: String, cmstr: String): Unit
Definition Classes
MarkupHandler
def elemEnd(pos: Int, pre: String, label: String): Unit
callback method invoked by MarkupParser after end-tag of element.
callback method invoked by MarkupParser after end-tag of element.
pos
the position in the source file
pre
the prefix
label
the local name
Definition Classes
MarkupHandler
def elemStart(pos: Int, pre: String, label: String, attrs: MetaData, scope: NamespaceBinding): Unit
callback method invoked by MarkupParser after start-tag of element.
callback method invoked by MarkupParser after start-tag of element.
pos
the position in the sourcefile
pre
the prefix
label
the local name
attrs
the attributes (metadata)
Definition Classes
MarkupHandler
def element(pscope: NamespaceBinding): NodeSeq
Definition Classes
MarkupParser

def element1(pscope: NamespaceBinding): NodeSeq

'<' element ::= xmlTag1 '>'  { xmlExpr | '{' simpleExpr '}' } ETag
             | xmlTag1 '/' '>'

Definition Classes: MarkupParser

def elementDecl(): Unit
<! element := ELEMENT
<! element := ELEMENT
Definition Classes
MarkupParser
def endDTD(n: String): Unit
Definition Classes
MarkupHandler
var ent: Map[String, EntityDecl]
Definition Classes
MarkupHandler
def entityDecl(): Unit
```
<! element := ELEMENT
```
Definition Classes
MarkupParser
def entityRef(pos: Int, n: String): EntityRef
callback method invoked by MarkupParser after parsing entity ref.
callback method invoked by MarkupParser after parsing entity ref.
Definition Classes
ConstructingHandler → MarkupHandler
To do
expanding entity references
def eof: Boolean
Definition Classes
MarkupParser → MarkupParserCommon
final def eq(arg0: AnyRef): Boolean
Definition Classes
AnyRef
def equals(arg0: AnyRef): Boolean
Definition Classes
AnyRef → Any
def errorAndResult[T](msg: String, x: T): T
Attributes
protected
Definition Classes
MarkupParserCommon
def errorNoEnd(tag: String): Nothing
Definition Classes
MarkupParser → MarkupParserCommon
val extIndex: Int
Definition Classes
MarkupParser
def extSubset(): Unit
Definition Classes
MarkupParser

def externalID(): ExternalID

externalID ::= SYSTEM S syslit
               PUBLIC S pubid S syslit

Definition Classes: MarkupParser

def externalSource(systemId: String): Source
Definition Classes
ExternalSources
final def getClass(): Class[_ <: AnyRef]
Definition Classes
AnyRef → Any
Annotations
@native() @HotSpotIntrinsicCandidate()
def hashCode(): Int
Definition Classes
AnyRef → Any
Annotations
@native() @HotSpotIntrinsicCandidate()
def initialize: ConstructingParser.this.type
As the current code requires you to call nextch once manually after construction, this method formalizes that suboptimal reality.
As the current code requires you to call nextch once manually after construction, this method formalizes that suboptimal reality.
Definition Classes
MarkupParser
val inpStack: List[Source]
stack of inputs
stack of inputs
Definition Classes
MarkupParser
val input: Source
Definition Classes
ConstructingParser → MarkupParser
def intSubset(): Unit
"rec-xml/#ExtSubset" pe references may not occur within markup declarations
"rec-xml/#ExtSubset" pe references may not occur within markup declarations
Definition Classes
MarkupParser
def isAlpha(c: Char): Boolean
These are 99% sure to be redundant but refactoring on the safe side.
These are 99% sure to be redundant but refactoring on the safe side.
Definition Classes
TokenTests
def isAlphaDigit(c: Char): Boolean
Definition Classes
TokenTests
final def isInstanceOf[T0]: Boolean
Definition Classes
Any
def isName(s: String): Boolean
```
Name ::= ( Letter | '_' ) (NameChar)*
```
See [5] of XML 1.0 specification.
Definition Classes
TokenTests
def isNameChar(ch: Char): Boolean
```
NameChar ::= Letter | Digit | '.' | '-' | '_' | ':' | #xB7
           | CombiningChar | Extender
```
See [4] and [4a] of Appendix B of XML 1.0 specification.
Definition Classes
TokenTests
def isNameStart(ch: Char): Boolean
```
NameStart ::= ( Letter | '_' | ':' )
```
where Letter means in one of the Unicode general categories { Ll, Lu, Lo, Lt, Nl }.
We do not allow a name to start with :. See [4] and Appendix B of XML 1.0 specification
Definition Classes
TokenTests
def isPubIDChar(ch: Char): Boolean
Definition Classes
TokenTests
final def isSpace(cs: collection.Seq[Char]): Boolean
```
(#x20 | #x9 | #xD | #xA)+
```
Definition Classes
TokenTests
final def isSpace(ch: Char): Boolean
```
(#x20 | #x9 | #xD | #xA)
```
Definition Classes
TokenTests
def isValidIANAEncoding(ianaEncoding: collection.Seq[Char]): Boolean
Returns true if the encoding name is a valid IANA encoding.
Returns true if the encoding name is a valid IANA encoding. This method does not verify that there is a decoder available for this encoding, only that the characters are valid for an IANA encoding name.
ianaEncoding
The IANA encoding name.
Definition Classes
TokenTests
val isValidating: Boolean
returns true is this markup handler is validating
returns true is this markup handler is validating
Definition Classes
MarkupHandler
val lastChRead: Char
Definition Classes
MarkupParser
def lookahead(): BufferedIterator[Char]
Create a lookahead reader which does not influence the input
Create a lookahead reader which does not influence the input
Definition Classes
MarkupParser → MarkupParserCommon
def lookupElemDecl(Label: String): ElemDecl
Definition Classes
MarkupHandler
def markupDecl(): Unit
Definition Classes
MarkupParser
def markupDecl1(): Any
Definition Classes
MarkupParser
def mkAttributes(name: String, pscope: NamespaceBinding): AttributesType
Definition Classes
MarkupParser → MarkupParserCommon
def mkProcInstr(position: Int, name: String, text: String): ElementType
Definition Classes
MarkupParser → MarkupParserCommon
final def ne(arg0: AnyRef): Boolean
Definition Classes
AnyRef
val nextChNeeded: Boolean
holds the next character
holds the next character
Definition Classes
MarkupParser
def nextch(): Unit
this method tells ch to get the next character when next called
this method tells ch to get the next character when next called
Definition Classes
MarkupParser → MarkupParserCommon
def notationDecl(): Unit
```
'N' notationDecl ::= "OTATION"
```
Definition Classes
MarkupParser
def notationDecl(notat: String, extID: ExternalID): Unit
Definition Classes
MarkupHandler
final def notify(): Unit
Definition Classes
AnyRef
Annotations
@native() @HotSpotIntrinsicCandidate()
final def notifyAll(): Unit
Definition Classes
AnyRef
Annotations
@native() @HotSpotIntrinsicCandidate()
def parameterEntityDecl(name: String, edef: EntityDef): Unit
Definition Classes
MarkupHandler
def parseDTD(): Unit
parses document type declaration and assigns it to instance variable dtd.
parses document type declaration and assigns it to instance variable dtd.
```
<! parseDTD ::= DOCTYPE name ... >
```
Definition Classes
MarkupParser
def parsedEntityDecl(name: String, edef: EntityDef): Unit
Definition Classes
MarkupHandler
def peReference(name: String): Unit
Definition Classes
MarkupHandler
def pop(): Unit
Definition Classes
MarkupParser
val pos: Int
holds the position in the source file
holds the position in the source file
Definition Classes
MarkupParser
val preserveWS: Boolean
if true, does not remove surplus whitespace
if true, does not remove surplus whitespace
Definition Classes
ConstructingParser → MarkupParser → ConstructingHandler
def procInstr(pos: Int, target: String, txt: String): ProcInstr
callback method invoked by MarkupParser after parsing PI.
callback method invoked by MarkupParser after parsing PI.
Definition Classes
ConstructingHandler → MarkupHandler
def prolog(): (Option[String], Option[String], Option[Boolean])
```
<? prolog ::= xml S?
// this is a bit more lenient than necessary...
```
Definition Classes
MarkupParser

def pubidLiteral(): String

[12]       PubidLiteral ::=        '"' PubidChar* '"' | "'" (PubidChar - "'")* "'"

Definition Classes: MarkupParser

def push(entityName: String): Unit
Definition Classes
MarkupParser
def pushExternal(systemId: String): Unit
Definition Classes
MarkupParser
def putChar(c: Char): collection.mutable.StringBuilder
append Unicode character to name buffer
append Unicode character to name buffer
Attributes
protected
Definition Classes
MarkupParser
val reachedEof: Boolean
Definition Classes
MarkupParser
def replacementText(entityName: String): Source
Definition Classes
MarkupHandler
def reportSyntaxError(str: String): Unit
Definition Classes
MarkupParser → MarkupParserCommon
def reportSyntaxError(pos: Int, str: String): Unit
Definition Classes
MarkupParser → MarkupParserCommon
def reportValidationError(pos: Int, str: String): Unit
Definition Classes
MarkupParser
def returning[T](x: T)(f: (T) => Unit): T
Apply a function and return the passed value
Apply a function and return the passed value
Definition Classes
MarkupParserCommon
def saving[A, B](getter: A, setter: (A) => Unit)(body: => B): B
Execute body with a variable saved and restored after execution
Execute body with a variable saved and restored after execution
Definition Classes
MarkupParserCommon
final def synchronized[T0](arg0: => T0): T0
Definition Classes
AnyRef
def systemLiteral(): String
attribute value, terminated by either ' or ".
attribute value, terminated by either ' or ". value may not contain <.
```
AttValue     ::= `'` { _ } `'`
               | `"` { _ } `"`
```
Definition Classes
MarkupParser
def text(pos: Int, txt: String): Text
callback method invoked by MarkupParser after parsing text.
callback method invoked by MarkupParser after parsing text.
Definition Classes
ConstructingHandler → MarkupHandler
def textDecl(): (Option[String], Option[String])
prolog, but without standalone
prolog, but without standalone
Definition Classes
MarkupParser
val tmppos: Int
holds temporary values of pos
holds temporary values of pos
Definition Classes
MarkupParser → MarkupParserCommon
def toString(): String
Definition Classes
AnyRef → Any
def truncatedError(msg: String): Nothing
Definition Classes
MarkupParser → MarkupParserCommon
def unparsedEntityDecl(name: String, extID: ExternalID, notat: String): Unit
Definition Classes
MarkupHandler
def unreachable: Nothing
Attributes
protected
Definition Classes
MarkupParserCommon
final def wait(arg0: Long, arg1: Int): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException]) @native()
final def wait(): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
def xAttributeValue(): String
Definition Classes
MarkupParserCommon
def xAttributeValue(endCh: Char): String
attribute value, terminated by either ' or ".
attribute value, terminated by either ' or ". value may not contain <.
endCh
either ' or "
Definition Classes
MarkupParserCommon
def xAttributes(pscope: NamespaceBinding): (MetaData, NamespaceBinding)
parse attribute and create namespace scope, metadata
parse attribute and create namespace scope, metadata
```
[41] Attributes    ::= { S Name Eq AttValue }
```
Definition Classes
MarkupParser

def xCharData: NodeSeq

'<! CharData ::= [CDATA[ ( {char} - {char}"]]>"{char} ) ']]>'

see [15]

Definition Classes: MarkupParser

def xCharRef: String
Definition Classes
MarkupParserCommon
def xCharRef(it: Iterator[Char]): String
Definition Classes
MarkupParserCommon
def xCharRef(ch: () => Char, nextch: () => Unit): String
CharRef ::= "&#" '0'..'9' {'0'..'9'} ";" | "&#x" '0'..'9'|'A'..'F'|'a'..'f' { hexdigit } ";"
CharRef ::= "&#" '0'..'9' {'0'..'9'} ";" | "&#x" '0'..'9'|'A'..'F'|'a'..'f' { hexdigit } ";"
see [66]
Definition Classes
MarkupParserCommon
def xComment: NodeSeq
```
 Comment ::= ''

see [15]
```
Definition Classes
MarkupParser
def xEQ(): Unit
scan [S] '=' [S]
scan [S] '=' [S]
Definition Classes
MarkupParserCommon
def xEndTag(startName: String): Unit
[42] '<' xmlEndTag ::= '<' '/' Name S? '>'
[42] '<' xmlEndTag ::= '<' '/' Name S? '>'
Definition Classes
MarkupParserCommon
def xEntityValue(): String
entity value, terminated by either ' or ".
entity value, terminated by either ' or ". value may not contain <.
```
AttValue     ::= `'` { _  } `'`
               | `"` { _ } `"`
```
Definition Classes
MarkupParser
def xHandleError(that: Char, msg: String): Unit
Definition Classes
MarkupParser → MarkupParserCommon
def xName: String
actually, Name ::= (Letter | '_' | ':') (NameChar)* but starting with ':' cannot happen Name ::= (Letter | '_') (NameChar)*
actually, Name ::= (Letter | '_' | ':') (NameChar)* but starting with ':' cannot happen Name ::= (Letter | '_') (NameChar)*
see [5] of XML 1.0 specification
pre-condition: ch != ':' // assured by definition of XMLSTART token post-condition: name does neither start, nor end in ':'
Definition Classes
MarkupParserCommon
def xProcInstr: ElementType
'<?' ProcInstr ::= Name [S ({Char} - ({Char}'>?' {Char})]'?>'
'<?' ProcInstr ::= Name [S ({Char} - ({Char}'>?' {Char})]'?>'
see [15]
Definition Classes
MarkupParserCommon
def xSpace(): Unit
scan [3] S ::= (#x20 | #x9 | #xD | #xA)+
scan [3] S ::= (#x20 | #x9 | #xD | #xA)+
Definition Classes
MarkupParserCommon
def xSpaceOpt(): Unit
skip optional space S?
skip optional space S?
Definition Classes
MarkupParserCommon
def xTag(pscope: NamespaceType): (String, AttributesType)
parse a start or empty tag.
parse a start or empty tag. [40] STag ::= '<' Name { S Attribute } [S] [44] EmptyElemTag ::= '<' Name { S Attribute } [S]
Attributes
protected
Definition Classes
MarkupParserCommon
def xTakeUntil[T](handler: (PositionType, String) => T, positioner: () => PositionType, until: String): T
Take characters from input stream until given String "until" is seen.
Take characters from input stream until given String "until" is seen. Once seen, the accumulated characters are passed along with the current Position to the supplied handler function.
Attributes
protected
Definition Classes
MarkupParserCommon
def xToken(that: collection.Seq[Char]): Unit
Definition Classes
MarkupParserCommon
def xToken(that: Char): Unit
Definition Classes
MarkupParserCommon
def xmlProcInstr(): MetaData
```
<? prolog ::= xml S ... ?>
```
Definition Classes
MarkupParser

Deprecated Value Members

def finalize(): Unit
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.Throwable]) @Deprecated @deprecated
Deprecated
(Since version ) see corresponding Javadoc for more information.
def log(msg: String): Unit
Definition Classes
MarkupHandler
Annotations
@deprecated
Deprecated
(Since version 2.11) This method and its usages will be removed. Use a debugger to debug code.

Packages

ConstructingParser

Companion object ConstructingParser

class ConstructingParser extends ConstructingHandler with ExternalSources with MarkupParser

Instance Constructors

Type Members

Value Members

Deprecated Value Members

Inherited from MarkupParser

Inherited from MarkupParserCommon

Inherited from TokenTests

Inherited from ExternalSources

Inherited from ConstructingHandler

Inherited from MarkupHandler

Inherited from AnyRef

Inherited from Any

Ungrouped

Packages

ConstructingParser

Companion object ConstructingParser

class ConstructingParser extends ConstructingHandler with ExternalSources with MarkupParser

Instance Constructors

Type Members

Value Members

Deprecated Value Members

Inherited from MarkupParser

Inherited from MarkupParserCommon

Inherited from TokenTests

Inherited from ExternalSources

Inherited from ConstructingHandler

Inherited from MarkupHandler

Inherited from AnyRef

Inherited from Any

Ungrouped

ConstructingParser