Method and apparatus for converting long file names to short file names

• US 5,765,169 A
• Filed: 09/30/1996
• Issued: 06/09/1998
• Est. Priority Date: 09/30/1996
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Conner, Christopher John
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): Min, Donald
• Application Number:
  US08/723,181
• Time in Patent Office: 617 Days
• Field of Search: 707/1, 707/200, 707/101
• US Class Current: 1/1
• CPC Class Codes: G06F 16/10 File systems; File servers
• CPC Class Codes: Y10S 707/99931 Database or file accessing
• CPC Class Codes: Y10S 707/99942 Manipulating data structure, e.g. compression, compaction, compilation

Abstract

A method and apparatus for converting long file names to short file names having an eight character prefix and a three character extension. The long file name is examined and separated into a prefix portion and suffix/extension portion. The prefix and suffix portions of the file name are then converted to short file names using the following steps working from right to left: 1) remove lower case vowels; 2) remove lower case consonants; 3) remove upper case vowels; 4) remove upper case consonants; 5) remove single digit numbers; 6) and remove special characters. When the prefix and suffix have been reduced to the desired number of characters, the two portion are concatenated to form a shorten file name.

Claims

1. A method, implemented in a computer, for converting a long file name into a short file name, comprising:

providing said long file name in said computer for conversion into said short file name;

determining a desired size for said short file name;

converting said long file name to said short file name by the sequential applications of the following steps;

removing lower case vowels until said desired size is reached,

removing lower case consonants until said desired size is reached;

removing upper case vowels until said desired size is reached;

removing upper case consonants until said desired size is reached;

removing single digit numbers until said desired size is reached; and

removing special characters until said desired size is reached.

2. The method of claim 1 wherein the providing step further comprises:

detecting a separator mark in said long file name; and

separating said long file name into a prefix portion and a suffix portion.

3. The method of claim 2 wherein said determining step further comprises:

selecting said desired size that is different for said prefix and suffix portions.

4. The method of claim 1 wherein said removing step further comprises:

working from right to left to remove the characters from said long file name.

5. The method of claim 1 wherein said converting step further comprises:

concatenating said suffix and prefix with said separator mark when said desired size have been reached.

6. An apparatus for converting a long file name into a short file name, comprising:

means for providing said long file name in said computer for conversion into said short file name;

means for determining a desired size for said short file name;

means for converting said long file name to said short file name by the sequential applications of the following steps;

means for removing lower case vowels until said desired size is reached, means for removing lower case consonants until said desired size is reached;

means for removing upper case vowels until said desired size is reached;

means for removing upper case consonants until said desired size is reached;

means for removing single digit numbers until said desired size is reached; and

means for removing special characters until said desired size is reached.

7. The apparatus of claim 6 wherein the means for providing further comprises:

means for detecting a separator mark in said long file name; and

means for separating said long file name into a prefix portion and a suffix portion.

8. The apparatus of claim 6 wherein the means for determining further comprises:

means for selecting said desired size that is different for said prefix and suffix portions.

9. The apparatus of claim 6 wherein the means for removing further comprises:

means for working from right to left to remove the characters from said long file name.

10. The apparatus of claim 6 wherein said means for converting further comprises:

means for concatenating said suffix and prefix with said separator mark when said desired size have been reached.

11. A computer program product having a computer readable medium having computer program logic recorded thereon for converting a long file name into a short file name, comprising:

computer readable means for providing said long file name in said computer for conversion into said short file name;

computer readable means for determining a desired size for said short file name;

computer readable means for converting said long file name to said short file name by the sequential applications of the following computer readable means;

computer readable means for removing lower case vowels until said desired size is reached,

computer readable means for removing lower case consonants until said desired size is reached;

computer readable means for removing upper case vowels until said desired size is reached;

computer readable means for removing upper case consonants until said desired size is reached;

computer readable means for removing single digit numbers until said desired size is reached; and

computer readable means for removing special characters until said desired size is reached.

12. The computer program product of claim 11 wherein said computer readable medium means for providing further comprises:

computer readable means for detecting a separator mark in said long file name; and

computer readable means for separating said long file name into a prefix portion and a suffix portion.

13. The computer program product of claim 11 wherein said computer readable medium means for determining further comprises:

computer readable means for selecting said desired size that is different for said prefix and suffix portions.

14. The computer program product of claim 11 wherein the computer readable means for removing further comprises:

computer readable means for working from right to left to remove the characters from said long file name.

15. The apparatus of claim 11 wherein said computer readable means for converting further comprises:

computer readable means for concatenating said suffix and prefix with said separator mark when said desired size have been reached.