Enabling multiple code generators in a translator-based embedded scripting system

• US 6,339,839 B1
• Filed: 11/12/1998
• Issued: 01/15/2002
• Est. Priority Date: 11/12/1998
• Status: Expired due to Term

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Wang, Andy I-Shin
• Primary Examiner(s): Powell, Mark R.
• Assistant Examiner(s): Khatri, Anil
• Application Number:
  US09/191,255
• Time in Patent Office: 1,160 Days
• Field of Search: 717/5, 717/6, 717/7, 703/23, 704/1, 704/4, 704/8, 707/513, 707/203, 716/1
• US Class Current: 717/146
• CPC Class Codes: G06F 8/423 Preprocessors
• CPC Class Codes: G06F 8/425 Lexical analysis
• CPC Class Codes: G06F 8/51 Source to source
• CPC Class Codes: Y10S 707/99953 Recoverability
• CPC Class Codes: Y10S 707/99954 Version management

Abstract

A translator-based embedded scripting environment includes multiple translators executed by one or more computers. An original input source is split into a plurality of intermediate sources for processing by a plurality of translators executed by one or more computers. One or more of the corresponding intermediate sources includes a class definition that contains one or more methods. Another one of the corresponding intermediate sources includes logic to instantiate the class definition as an object and logic to invoke the one or more of the methods of the object in order to maintain a sequence of execution specified in the original input source. Placeholders are used within the class definition during the translations to identify locations of file input/output operations that write data to an output destination.

Claims

1. A translator-based embedded scripting environment, comprising:

(a) one or more computers; and

(b) a plurality of translators, executed by one or more of the computers, for processing their respective corresponding intermediate sources derived from an original input source, wherein one or more of the corresponding intermediate sources includes a class definition that encompasses logic of the original input source and another one of the corresponding intermediate sources includes logic to instantiate the class definition as an object in order to maintain a sequence of execution specified in the original input source.

2. The translator-based embedded scripting environment of claim 1, wherein one of the intermediate sources derived from an original input source contains one or more placeholders.

3. The translator-based embedded scripting environment of claim 2, wherein the original input source consisting of HTML text and JavaScript statements.

4. The translator-based embedded scripting environment of claim 3, wherein the placeholders identify the HTML text in the original input source.

5. The translator-based embedded scripting environment of claim 4, wherein the placeholders comprise one or more script comments.

6. The translator-based embedded scripting environment of claim 4, wherein the script comments identify a location of the HTML text within the original input source.

7. The translator-based embedded scripting environment of claim 3, wherein the placeholders are translated into file input/operations.

8. The translator-based embedded scripting environment of claim 7, wherein the file input/output operations write the HTML text to an output destination.

9. The translator-based embedded scripting environment of claim 1, wherein the respective corresponding intermediate sources comprise programming statements selected from a group consisting of HTML, JavaScript, and Java.

10. The translator-based embedded scripting environment of claim 9, wherein one of the translators translates the original input source into Java statements.

11. The translator-based embedded scripting environment of claim 9, wherein one of the translators translates the original input source into JavaScript statements with placeholders indicating HTML text.

12. The translator-based embedded scripting environment of claim 11, wherein the placeholders identify a location of the HTML text in the original input source.

13. The translator-based embedded scripting environment of claim 12, wherein one of the translators translates the JavaScript statements into a Java class definition and one or more methods within the Java class definition.

14. The translator-based embedded scripting environment of claim 13, wherein one of the translators translates the placeholders into file input/output operations within the Java class definition.

15. The translator-based embedded scripting environment of claim 14, wherein the file input/output operations write the HTML text to an output destination.

16. A method of processing scripts in a translator-based embedded scripting environment, comprising the steps of:

(a) processing an original input source to create respective corresponding intermediate sources for a plurality of translators executed by one or more computers, wherein one or more of the corresponding intermediate sources includes a class definition that encompasses logic of the original input source and another one of the corresponding intermediate sources includes logic to instantiate the class definition as an object in order to maintain a sequence of execution specified in the original input source; and

(b) executing the intermediate source files in one or more of the computers.

17. The method of claim 16, wherein one of the intermediate sources derived from an original input source contains one or more placeholders.

18. The method of claim 17, wherein the original input source comprises HTML text and JavaScript statements.

19. The method of claim 18, wherein the placeholders identify the HTML text in the original input source.

20. The method of claim 19, wherein the placeholders comprise one or more script comments.

21. The method of claim 19, wherein the script comments identify a location of the HTML text within the original input source.

22. The method of claim 18, wherein the placeholders are translated into file input/operations.

23. The method of claim 22, wherein the file input/output operations write the HTML text to an output destination.

24. The method of claim 16, wherein the respective corresponding intermediate sources comprise programming statements selected from a group consisting of HTML, JavaScript, and Java.

25. The method of claim 24, wherein one of the translators translates the original input source into Java statements.

26. The method of claim 24, wherein one of the translators translates the original input source into JavaScript statements with placeholders indicating HTML text.

27. The method of claim 26, wherein the placeholders identify a location of the HTML text in the original input source.

28. The method of claim 27, wherein one of the translators translates the JavaScript statements into a Java class definition and one or more methods within the Java class definition.

29. The method of claim 28, wherein one of the translators translates the placeholders into file input/output operations within the Java class definition.

30. The method of claim 29, wherein the file input/output operations write the HTML text to an output destination.

31. An article of manufacture embodying logic for performing a method of processing scripts in a translator-based embedded scripting environment, the method comprising the steps of.

(a) processing an original input source to create respective corresponding intermediate sources for a plurality of translators executed by one or more computers, wherein one or more of the corresponding intermediate sources includes a class definition that encompasses logic of the original input source and another one of the corresponding intermediate sources includes logic to instantiate the class definition as an object in order to maintain a sequence of execution specified in the original input source;

and

(b) executing the intermediate source files in one or more of the computers.

32. The method of claim 31, wherein one of the intermediate sources derived from an original input source contains one or more placeholders.

33. The method of claim 32, wherein the original input source consisting of HTML text and JavaScript statements.

34. The method of claim 33, wherein the placeholders identify the HTML text in the original input source.

35. The method of claim 34, wherein the placeholders comprise one or more script comments.

36. The method of claim 34, wherein the script comments identify a location of the HTML text within the original input source.

37. The method of claim 33, wherein the placeholders are translated into file input/operations.

38. The method of claim 37, wherein the file input/output operations write the HTML text to an output destination.

39. The method of claim 31, wherein the respective corresponding intermediate sources comprise programming statements selected from a group consisting of HTML, JavaScript, and Java.

40. The method of claim 39, wherein one of the translators translates the original input source into Java statements.

41. The method of claim 39, wherein one of the translators translates the original input source into JavaScript statements with placeholders indicating HTML text.

42. The method of claim 41, wherein the placeholders identify a location of the HTML text in the original input source.

43. The method of claim 42, wherein one of the translators translates the JavaScript statements into a Java class definition and one or more methods within the Java class definition.

44. The method of claim 43, wherein one of the translators translates the placeholders into file input/output operations within the Java class definition.

45. The method of claim 44, wherein the file input/output operations write the HTML text to an output destination.