Object-oriented processing of markup

• US 7,844,956 B2
• Filed: 11/23/2005
• Issued: 11/30/2010
• Est. Priority Date: 11/24/2004
• Status: Expired due to Fees

• Current Assignee: Alan S. Rojer
• Original Assignee: Alan S. Rojer
• Inventors: Rojer, Alan S.
• Primary Examiner(s): DAO, THUY CHAN
• Application Number:
  US11/286,914
• Publication Number:
  US 20060129971A1
• Time in Patent Office: 1,833 Days
• Field of Search: None
• US Class Current: 717/136
• CPC Class Codes: G06F 16/84 Mapping; Conversion
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]

Abstract

An application-specific client for object-oriented processing of markup includes a model object and a plurality of element objects. The model object is configured to respond to client requests including construct-element, accept-root-element, and accept-root-text. The element objects are configured to respond to client requests including accept-attribute, accept-element, and accept-text. Responses to requests contain application-specific processing as necessary. A driver generates client requests in response to processing of XML markup. An RSS client processes markup describing syndicated web content to HTML markup.

Claims

1. A computer-implemented method, executed by a central processing unit (CPU), for application-specific object-oriented processing of a markup by a model instance associated with a class Model and a plurality of element instances, each of said plurality of element instances associated with a class Element, said class Model is configured to process instances of said class Element, comprising the steps of:

responding to a construct-element request, said construct-element request is a member function of said class Model, dispatched to said model instance, in which a tag name is provided, said tag name corresponding to a tagged element from said markup, constructing a new element instance, one of said plurality of element instances, according to application-specific requirements as determined according to said tag name, performing application-specific processing as required, and returning said constructed new element instance;

responding to an accept-attribute request, said accept-attribute request is a member function of said class Element, dispatched to one of said plurality of element instances, in which an attribute is provided, said attribute corresponding to a markup attribute of a tagged element from said markup, and performing application-specific processing as required;

responding to an accept-element request, said accept-element request is a member function of said class Element, dispatched to one of said plurality of element instances, in which a child element instances, one of said plurality of element instances, is provided, and performing application-specific processing as required; and

responding to an accept-root-element request, said accept-root-element request is a member function of said class Model, dispatched to said model instance, in which a root element instance, one of said plurality of element instances, is provided, and performing application-specific processing as required.

2. The computer-implemented method of claim 1, further comprising the step of:

responding to a configure request, said configure request is a member function of said class Element, dispatched to one of said plurality of element instances, said configure request indicating that no further is for said accept-attribute request will be dispatched to the one of said plurality of element instances, and performing application-specific processing as required.

3. The computer-implemented method of claim 1, further comprising the step of:

responding to a commit request, said commit request is a member function of said class Element, dispatched to one of said plurality of element instances, said commit request indicating that no further is for said accept-element request will be dispatched to the one of said plurality of element instances, and performing application-specific processing as required.

4. The computer-implemented method of claim 1, further comprising the step of:

responding to an accept-text request, said accept-text request is a member function of said class Element, dispatched to one of said plurality of element instances, in which an instance of textual content from said markup is provided, and performing application-specific processing as required.

5. The computer-implemented method of claim 1, further comprising the step of:

responding to an accept-root-text request, said accept-root-text request is a member function of said class Model, dispatched to said model instance, in which an instance of textual content from said markup is provided, and performing application-specific processing as required.

6. A computer-implemented method, executed by a central processing unit (CPU), for processing markup to dispatch object-oriented is to a model instance associated with a Model class, and a plurality of element instances, each of said element instances associated with an Element class, said class Model is configured to process instances of said class Element, comprising the steps of:

detecting a tagged element of said markup, said tagged element including a tag name, dispatching to said model instance a construct-element request, said construct-element request is a member function of said Model class, in which said tag name is provided, and from which a newly-constructed element instance is returned, and associating said newly-constructed element instance with said tagged element of said markup;

detecting an attribute of another tagged element of said markup, determining an associated element instance, one of said plurality of element instances, said associated element instance previously associated with said another tagged element, and dispatching to said associated element instance an accept-attribute request, said accept-attribute request is a member function of said Element class, in which said markup attribute is provided;

detecting a child tagged element of said markup and a corresponding parent tagged element of said markup, determining a child element instance, one of said plurality of element instances, said child element instance previously associated with said child tagged element, determining a parent element instance, one of said plurality of element instances, said parent element instance previously associated with said parent tagged element, dispatching to said parent tagged element an accept-element request, said accept-attribute request is a member function of said Element class, in which said child element instance is provided; and

detecting a root-level tagged element of said markup, determining an associated element instance, one of said plurality of element instances, said associated element instance previously associated with said tagged element, and dispatching to said model instance an accept-root-element request, said accept-root-element is a member function of said Model class, in which said associated element instance is provided.

7. The computer-implemented method of claim 6, further comprising the step of:

detecting the absence of additional attributes of a tagged element of said markup, determining an associated element instance, one of said plurality of element instances, said associated element instance previously associated with said tagged element, and dispatching to said associated element instance a configure request, said configure request is a member function of said Element class.

8. The computer-implemented method of claim 6, further comprising the step of:

detecting a tagged element of said markup, determining an associated element instance, one of said plurality of element instances, said associated element instance previously associated with said tagged element, and dispatching to said associated element instance a commit request, said commit request is a member function of said Element class.

9. The computer-implemented method of claim 6, further comprising the step of:

detecting an instance of textual content from the body of a tagged element, determining an associated element instance, one of said plurality of element instances, said associated element instance previously associated with said tagged element, and dispatching to said associated element instance an accept-text request, said accept-text request is a member function of said Element class, in which said instance of textual content is provided.

10. The computer-implemented method of claim 6, further comprising the step of:

detecting an instance of root textual content, and dispatching to said model instance an accept-root-text request, said accept-root-text request is a member function of said Model class, in which said instance of textual content is provided.

11. A non-transitory computer-readable medium encoded with a computer program for application-specific object-oriented processing of a markup, said computer program comprising:

a model instance associated with a class Model;

a plurality of element instances, each of said plurality of element instances associated with a class Element, said class Model is configured to process instances of said class Element;

wherein

said model instance is configured to respond to a construct-element request, said construct-element request is a member function of said class Model, in which a tag name is provided, said tag name corresponding to a tagged element from said markup, to construct a new element instance, one of said plurality of element instances, according to application-specific requirements as determined according to said tag name, to perform application-specific processing as required, and to return said constructed new element instance;

each of said plurality of element instances is configured to respond to an accept-attribute request, said accept-attribute request is a member function of said class Element, in which an attribute is provided, said attribute corresponding to a markup attribute of a tagged element from said markup, and to perform application-specific processing as required;

each of said plurality of element instances is further configured to respond to an accept-element request, said accept-element request is a member function of said class Element, in which a child element instance, one of said plurality of element instances, is provided, and to perform application-specific processing as required; and

said model instance is further configured to respond to an accept-root-element request, said accept-root-element request is a member function of said class Model, in which a root element instance, one of said plurality of element instances, is provided, and to perform application-specific processing as required.

12. The non-transitory computer-readable medium encoded with a computer program of claim 11, wherein:

each of said plurality of element instances is further configured to respond to a configure request, said configure request is a member function of said class Element, and said configure request indicating that no further is for said accept- attribute request will be dispatched to each of said plurality of element instances, and to perform application-specific processing as required.

13. The non-transitory computer-readable medium encoded with a computer program of claim 11, wherein:

each of said plurality of element instances is further configured to respond to a commit request, said commit request is a member function of said class Element, and said commit request indicating that no further is for said accept-element request will be dispatched to each of said plurality of element instances, and to perform application-specific processing as required.

14. The non-transitory computer-readable medium encoded with a computer program of claim 11, wherein:

each of said plurality of element instances is further configured to respond to an accept-text request, said accept-text request is a member function of said class Element, in which an instance of textual content from said markup is provided, and to perform application-specific processing as required.

15. The non-transitory computer-readable medium encoded with a computer program of claim 11, wherein:

said model instance is further configured to respond to an accept-root-text request, said accept-root-text request is a member function of said class Model, in which an instance of textual content from said markup is provided, and to perform application-specific processing as required.