RICH TEXT HANDLING FOR A WEB APPLICATION

• US 20130305141A1
• Filed: 07/15/2013
• Published: 11/14/2013
• Est. Priority Date: 06/26/2003
• Status: Active Grant

• Current Assignee: Kyndryl Incorporated (Kyndryl Holdings, Inc.)
• Original Assignee: International Business Machines Corporation
• Inventors: Wason, James R.
• Granted Patent: US 9,330,078 B2
• Time in Patent Office: Days
• US Class Current: 715/234
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]
• CPC Class Codes: G06F 40/157 using dictionaries or tables
• CPC Class Codes: G06F 40/166 Editing, e.g. inserting or deleting
• CPC Class Codes: G06F 40/232 Orthographic correction, e.g. spell checking or vowelisation
• CPC Class Codes: G06F 40/242 Dictionaries
• CPC Class Codes: Y10S 707/99942 Manipulating data structure, e.g. compression, compaction, compilation

Abstract

A method and apparatus for representing and controlling documents including rich text for Web based applications and browsers is provided so that editing of rich text can be facilitated within the browsers. The rich text is represented in a memory structure so that various formats may be flexible maintained. Text, images, tables, links and the like are represented in the memory structure, which may be maintained in databases for eventual editing. A controller class and subsidiary classes represent the rich text and provide methods to convert html to the memory structure and back, representing the rich text in a relational database, retrieving the rich text from a relational database, and presenting the rich text for editing. A spell checking facility for the rich text is included.

Claims

1. A method of representing and managing documents having rich text for use by applications, the method comprising:

representing rich text in a memory structure representation;

providing one or more classes for use by the applications to create the memory structure representation, the one or more classes including a rich text list class to create a rich text list node and to manage one or more rich text nodes and a rich text class to create the one or more rich text nodes each representing a unit of the rich text, wherein the rich text is edited as plain text using an applet;

providing well-formed segments of text to the one or more current rich text nodes from a rich text list node to initialize the current rich text nodes for representing rich text in a document;

transforming the text from memory format into string representations, wherein the transforming comprises converting the rich text into extensible markup language (XML) and using a compressed format where various attributes of the rich text nodes are captured along with a text value for each of the rich text nodes; and

displaying the transformed text in a document.

2. The method of claim 1, wherein:

the applet is linked to a hyper-text markup language (HTML) window;

the applet processes HTML and creates a rich text list to convert rich text structure back to the HTML; and

the applet processes the HTML, creates the rich text structure and locates an image tag when the image tag is associated with a table.

3. The method of claim 2, wherein the applet is used to provide an image or link tag with a file name or URL that is overloaded with additional parameters by the applet intercepting a feature of the browser.

4. The method of claim 2, wherein the applet searches for an image tag with a file name of table.

5. The method of claim 1, wherein:

the applet has a text area that represents a cursor position and a start of selected text and an end of the selected text within the text;

the applet determines, within the text area, which parts of the text and which particular rich text node are selected; and

the applet selects the table and the applet updates a table node in the rich text structure.

6. The method of claim 1, wherein:

the rich text list class is provided by an aggregate editor;

the aggregate editor manipulates and edits a data body and recognizes rich text types; and

the aggregate editor uses a toDb2 method to convert the string into memory representation.

7. The method of claim 6, wherein the text is provided in an output string to the aggregate editor that includes a one byte separator.

8. The method of claim 1, wherein the transforming the text memory format into string representations further comprises:

storing one of the rich text as a string in a relational database; and

formatting the string by converting the one of the rich text into hyper-text markup language (HTML) for storage.

9. The method of claim 8, further comprising:

creating rich text memory structure from the HTML, wherein the creating comprises, as a function in the rich text list, to make the HTML recognizable by the rich text nodes, wherein the rich text list creates nodes for table structures within the HTML.

10. A method of representing and managing documents having rich text for use by applications, the method comprising:

representing rich text in a memory structure representation;

providing one or more classes for use by the applications to create the memory structure representation, the one or more classes including a rich text list class to create a rich text list node and to manage one or more rich text nodes and a rich text class to create the one or more rich text nodes each representing a unit of the rich text;

providing well-formed segments of text to the one or more current rich text nodes from a rich text list node to initialize the current rich text nodes for representing rich text in a document; and

transforming the text from memory format into string representations, wherein the transforming comprising converting the rich text into extensible markup language (XML) and using a compressed format where various attributes of the rich text nodes are captured along with a text value for each of the rich text nodes.

11. The method of claim 10, wherein the rich text node is rendered to plain text and the plain text is written to an output string along with a one byte separator.

12. The method of claim 11, wherein the rich text node is at least one of:

an image node that reports itself in plain text representations as an image link; and

an anchor point of a table node that reports itself as a table, wherein content of the table comprises of titles and data cells which are rich text nodes that provides for editing the table by editing its plain text representation.

13. The method of claim 10, further comprising a hidden applet that intercepts generated HTML and creates rich text structure from the HTML and searches for an image tag associated with a table file name.

14. The method of claim 10, further comprising invoking a JavaScript function that brings up a new HTML panel, which provides for processing a file or URL as an image, attachment, or link.

15. The method of claim 14, further comprising providing for keys in the HTML panel, which are used to edit current text and which are added as hidden input fields.