Documentation

Overview

    Package diff implements a linewise diff algorithm.

    Index

    Examples

    Constants

    This section is empty.

    Variables

    This section is empty.

    Functions

    func Diff

    func Diff(A, B string) string

      Diff returns a string containing a line-by-line unified diff of the linewise changes required to make A into B. Each line is prefixed with '+', '-', or ' ' to indicate if it should be added, removed, or is correct respectively.

      Example
      Output:
      
      -:wq
       We the People of the United States, in Order to form a more perfect Union,
       establish Justice, insure domestic Tranquility, provide for the common defence,
      -and secure the Blessings of Liberty to ourselves
      +promote the general Welfare, and secure the Blessings of Liberty to ourselves
       and our Posterity, do ordain and establish this Constitution for the United
       States of America.
      

      Types

      type Chunk

      type Chunk struct {
      	Added   []string
      	Deleted []string
      	Equal   []string
      }

        Chunk represents a piece of the diff. A chunk will not have both added and deleted lines. Equal lines are always after any added or deleted lines. A Chunk may or may not have any lines in it, especially for the first or last chunk in a computation.

        func DiffChunks

        func DiffChunks(a, b []string) []Chunk

          DiffChunks uses an O(D(N+M)) shortest-edit-script algorithm to compute the edits required from A to B and returns the edit chunks.

          Source Files