Package eu.bandm.tools.d2d2.base

Class Dtd2Def.Phase1

java.lang.Object

eu.bandm.tools.dtm.DTM.MATCH_ONLY_00

eu.bandm.tools.dtm.DTM.SinglePathVisitor

eu.bandm.tools.d2d2.base.Dtd2Def.Phase1

Enclosing class:

Dtd2Def

protected class Dtd2Def.Phase1
extends DTM.SinglePathVisitor

Main translation phase which visits all DTD element definitions and generates their d2d tag expression according to their dtd content model and attribute list.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	Dtd2Def.Phase1.AttConverter	Translates d2d attribute definitions to d2d expressions on references.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) Location<XMLDocumentIdentifier>	elloc	Location of the currently visited element.
protected Expression	expr	Visitor result register of the last generated expression.

Fields inherited from class eu.bandm.tools.dtm.DTM.MATCH_ONLY_00

_visitor_debug_stream, partial

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Phase1()

Method Summary

Modifier and Type	Method	Description
protected void	action(DTM.Choice x)	Translate an alternative of DTD contents into an alternative of d2d expressions.
protected void	action(DTM.Element el)	Generate the d2d definition element and its contents expressions.
protected void	action(DTM.Mixed x)	Translate a "mixed" dtd content model into a d2d "starred alternative" expression.
protected void	action(DTM.Sequence x)	Translate a sequence of DTD contents into a sequence of d2d expressions.
protected void	action(DTM.Singleton x)	Translate a singleton content particle into the d2d singleton reference.
protected @Opt Definition	globalDefForAtt(String name, DTM.Attribute attdef)	Construct a common d2d tag element definition for a given attribute.
protected Definition	makeAttribute(SourceItem context, String name, DTM.Attribute att)	Create a new d2d-definition for a dtd attribute value.
protected Expression	makeRef(DTM.ElementRef eref)	Make a d2d reference for a dtm reference.
protected void	modify(DTM.CP cp)	Apply the dtd-level modifier to the current expression.

Methods inherited from class eu.bandm.tools.dtm.DTM.SinglePathVisitor

action, action, action, action, action, action, action, action, action, action, action, action, action, action, action, action, action, action, action, action, action, action, action, action, follow_alts, follow_attrs, follow_elems, follow_elems, follow_elems, follow_instructions

Methods inherited from class eu.bandm.tools.dtm.DTM.MATCH_ONLY_00

action, action, action, compile, followAll_alts, followAll_attrs, followAll_elems, followAll_elems, followAll_elems, followAll_instructions, foreignObject, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, match, nomatch

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

elloc

Location<XMLDocumentIdentifier> elloc

Location of the currently visited element. DTD expressions do not have their own location value in the current umod. Therefore se the one on "<!ELEMENT.." level for error messages.

expr

protected Expression expr

Visitor result register of the last generated expression.

Constructor Details

Phase1

protected Phase1()

Method Details

action

protected void action(DTM.Element el)

Generate the d2d definition element and its contents expressions.

Overrides:

action in class DTM.SinglePathVisitor

makeRef

protected Expression makeRef(DTM.ElementRef eref)

Make a d2d reference for a dtm reference. Enter only the name and the original source text location. The definition is not yet entered = the reference stays "unresolved".

modify

protected void modify(DTM.CP cp)

Apply the dtd-level modifier to the current expression.

action

protected void action(DTM.Singleton x)

Translate a singleton content particle into the d2d singleton reference.

Overrides:

action in class DTM.SinglePathVisitor

action

protected void action(DTM.Sequence x)

Translate a sequence of DTD contents into a sequence of d2d expressions.

Overrides:

action in class DTM.SinglePathVisitor

action

protected void action(DTM.Choice x)

Translate an alternative of DTD contents into an alternative of d2d expressions.

Overrides:

action in class DTM.SinglePathVisitor

action

protected void action(DTM.Mixed x)

Translate a "mixed" dtd content model into a d2d "starred alternative" expression.

Overrides:

action in class DTM.SinglePathVisitor

makeAttribute

protected Definition makeAttribute(SourceItem context,
 String name,
 DTM.Attribute att)

Create a new d2d-definition for a dtd attribute value. Give it "trimmed" storage type.

Parameters:

context - either the global att dummy element container, or an element d2d definition

name - the name of the new d2d definition, possibly mangled, because it must work LL(1)-disambuig as an input tag.

att - the original dtd definition; defines the xml output tag and the location.

globalDefForAtt

@Opt
protected @Opt Definition globalDefForAtt(String name,
 DTM.Attribute attdef)

Construct a common d2d tag element definition for a given attribute. Note that currently dtd-attribute "types" are not analyzed. there is only the type "text". Therefore all attributes with the same name and generating the same xml-tag (= not accidentally the same name due to mangling), and wich are not fixed (fixed attributes are not translated at all, anyhow), are equivalent and can be mapped to ONE(1) global d2d XRegExp.

Parameters:

name - the name of the new d2d definition. It is the original local name plus possibly some prefix for dis-ambiguation!

Returns:

the new definition, or null iff name already in use for a different xml tag. Then the caller can decide to realize the att as a LOCAL definition (or re-try after mangling).