Class: Change (private in Diff

• Inheritance
• Description
• Instance protocol
  • accessing
  • enumerating
  • instance creation

Inheritance:

   Object
   |
   +--Link
      |
      +--Diff::Change

Package:

stx:libtool

Category:

Collections-Sequenceable-Diff

Owner:

Diff

Description:

The result of comparison is an edit script: a chain of change objects.
Each change represents one place where some lines are deleted
and some are inserted.

LINE0 and LINE1 are the first affected lines in the two files (origin 0).
DELETED is the number of lines deleted here from file 0.
INSERTED is the number of lines inserted here in file 1.

If DELETED is 0 then LINE0 is the number of the line before
which the insertion was done; vice versa for INSERTED and LINE1.

Instance protocol:

 deleted

Line number of 1st deleted line.

 inserted

# lines of file 0 changed here.

 line0

Line number of 1st deleted line.

 line1

Line number of 1st inserted line.

 do: aBlock

 newLine0: aLine0 line1: aLine1 deleted: aDeleted inserted: aInserted next: nextChange

Cons an additional entry onto the front of an edit script OLD.
LINE0 and LINE1 are the first affected lines in the two files (origin 0).
DELETED is the number of lines deleted here from file 0.
INSERTED is the number of lines inserted here in file 1.

If DELETED is 0 then LINE0 is the number of the line before
which the insertion was done; vice versa for INSERTED and LINE1.