Language-sensitive whitespace adjustment in a software engineering tool

• US 7,117,479 B2
• Filed: 10/01/2001
• Issued: 10/03/2006
• Est. Priority Date: 10/01/2001
• Status: Active Grant

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Van De Vanter, Michael L.
• Primary Examiner(s): Khatri, Anil
• Application Number:
  US09/968,932
• Publication Number:
  US 20030066058A1
• Time in Patent Office: 1,828 Days
• Field of Search: 717114-117, 717124-129, 717/118, 717140-143
• US Class Current: 717/114
• CPC Class Codes: G06F 8/33 Intelligent editors

Abstract

An editor or software engineering tool may be configured to render whitespace between adjacent tokens, wherein the amount of whitespace between any two adjacent tokens is determined according to language-specific style rules and scaled in accordance with display considerations. In some realizations, the operative scaling is selected or defined by a user according to the user'"'"'s visual preferences. In some realizations, the operative scaling relates to requirements or constraints of an automated layout mechanism. For example, a particular scaling may be calculated to adjust line length in conformance with a desired margin alignment or to optimize layout when long lines are automatically wrapped (or folded) in some automatic way.

Claims

1. A software engineering tool that recognizes language tokens and computes for display whitespace amounts between adjacent instances thereof according to language-specific style rules, the software engineering tool further providing, for at least a grouping of those language tokens displayed, dynamic adjustment of the computed whitespace amounts in accordance with an operative scaling factor therefor.

2. The software engineering tool of claim 1,

wherein the dynamic adjustment is performed in response to selection of the operative scaling factor by a user of the software engineering tool.

3. The software engineering tool of claim 1,

wherein the dynamic adjustment is performed under control of an automated layout mechanism.

4. The software engineering tool of claim 1, wherein the operative scaling factor includes one or more of:

a linear scaling of the whitespace amounts; and

a non-linear scaling of the whitespace amounts.

5. The software engineering tool of claim 1, wherein the operative scaling factor is selectable in one of:

continuous units; and

discrete units.

6. The software engineering tool of claim 1,

wherein the operative scaling factor is selected to conform display of the grouping of language tokens to one or more dimensions of a particular view thereof.

7. The software engineering tool of claim 1, wherein the grouping of language tokens for which the dynamic adjustment is provided is one of:

a line thereof;

plural lines thereof;

all lines of a particular view thereof; and

only particular lines of the particular view thereof.

8. The software engineering tool of claim 1, configured as one or more of:

an editor;

a source level debugger;

a class viewer;

a profiler; and

an integrated development environment.

9. The software engineering tool of claim 1, embodied as software encoded in one or more computer readable media and executable on a processor.

10. The software tool of claim 1, wherein the language-specific style rules include style rules in accordance with lexical type of language tokens.

11. A method of presenting textual content that includes a sequence of tokens recognizable in accordance with a predefined language model, the method comprising:

calculating whitespace amounts for visual presentation between adjacent pairs of recognized tokens, wherein the calculated whitespace amount for visual presentation between a first pair of the tokens differs from that between a second pair of the tokens, each in accordance with language-specific style rules; and

for at least a subset of the token sequence, applying an operative scaling factor in the calculating of respective ones of the whitespace amounts.

12. The method of claim 11,

recognizing the tokens based on the predefined language model;

and

performing the calculation of respective whitespace amounts based on a property of one or more adjacent ones of the recognized tokens.

13. The method of claim 12,

wherein the property includes a token-type-specific leftward or rightward white space amount.

14. The method of claim 11,

displaying the visual presentation, including the scaled whitespace amounts, as editable textual content.

15. The method of claim 11,

rendering the visual presentation, including the scaled whitespace amounts, as viewable textual content.

16. The method of claim 11,

wherein the operative scaling factor is selected by a user of a software engineering tool that implements the method.

17. The method of claim 11, further comprising:

displaying or rendering the visual presentation,

wherein the operative sealing factor is selected under control of an automated layout mechanism.

18. The method of claim 11,

wherein the operative scaling factor is linear.

19. The method of claim 11,

wherein the operative scaling factor provides non-linear scaling of the whitespace amounts.