초록 ▼

A method and system for preserving attributes of objects within a file that was created in a different environment from that in which the file is opened, enabling the attributes to be maintained after the file is saved. For example, an HTML document created with a text editor includes elements such

A method and system for preserving attributes of objects within a file that was created in a different environment from that in which the file is opened, enabling the attributes to be maintained after the file is saved. For example, an HTML document created with a text editor includes elements such as plain text and HTML tags, with which attributes such as whitespace, line breaks, and indent level are associated. When such a document is opened in an HTML editor implementing the present invention, the attributes of these elements are preserved. Even when changes to these elements occur, to the extent possible, the method provides for determining attributes of related elements that were in the document as originally opened in the HTML editor, so that these attributes can be applied to corresponding objects that are added to the document or in regard to changes that are made by the user. The preservation of persistent object attributes is also applicable to other types of software applications such as language development systems and word processing programs. This invention thus insures, for example, that functions developed in newer versions of a program, although not recognized in an earlier version, persist when a file is opened in the earlier version and then saved.

대표청구항 ▼

1. A method for preserving attributes of a persistent object stream in a file that includes at least one object when the file is opened in a different environment than that in which the file was originally created, comprising the steps of:(a) creating a copy of attributes associated with each object

1. A method for preserving attributes of a persistent object stream in a file that includes at least one object when the file is opened in a different environment than that in which the file was originally created, comprising the steps of:(a) creating a copy of attributes associated with each object when opening the file in the different environment, said copy including attributes that are unknown to said different environment; (b) ignoring any of said attributes associated with each object that are unknown to the different environment; and (c) when writing the file, merging known attributes associated with each object that are changed in the different environment, with the copy of the attributes associated with the object, including any attributes that are unknown.