mirror of
https://github.com/cheat/cheat.git
synced 2024-09-28 22:41:32 +02:00
80c91cbdee
Integrate `go-git` into the application, and use it to `git clone` cheatsheets when the installer runs. Previously, the installer required that `git` be installed on the system `PATH`, so this change has to big advantages: 1. It removes that system dependency on `git` 2. It paves the way for implementing the `--update` command Additionally, `cheat` now performs a `--depth=1` clone when installing cheatsheets, which should at least somewhat improve installation times (especially on slow network connections).
134 lines
6.1 KiB
Go
134 lines
6.1 KiB
Go
// Copyright (c) 2015, Emir Pasic. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package containers
|
|
|
|
// IteratorWithIndex is stateful iterator for ordered containers whose values can be fetched by an index.
|
|
type IteratorWithIndex interface {
|
|
// Next moves the iterator to the next element and returns true if there was a next element in the container.
|
|
// If Next() returns true, then next element's index and value can be retrieved by Index() and Value().
|
|
// If Next() was called for the first time, then it will point the iterator to the first element if it exists.
|
|
// Modifies the state of the iterator.
|
|
Next() bool
|
|
|
|
// Value returns the current element's value.
|
|
// Does not modify the state of the iterator.
|
|
Value() interface{}
|
|
|
|
// Index returns the current element's index.
|
|
// Does not modify the state of the iterator.
|
|
Index() int
|
|
|
|
// Begin resets the iterator to its initial state (one-before-first)
|
|
// Call Next() to fetch the first element if any.
|
|
Begin()
|
|
|
|
// First moves the iterator to the first element and returns true if there was a first element in the container.
|
|
// If First() returns true, then first element's index and value can be retrieved by Index() and Value().
|
|
// Modifies the state of the iterator.
|
|
First() bool
|
|
|
|
// NextTo moves the iterator to the next element from current position that satisfies the condition given by the
|
|
// passed function, and returns true if there was a next element in the container.
|
|
// If NextTo() returns true, then next element's index and value can be retrieved by Index() and Value().
|
|
// Modifies the state of the iterator.
|
|
NextTo(func(index int, value interface{}) bool) bool
|
|
}
|
|
|
|
// IteratorWithKey is a stateful iterator for ordered containers whose elements are key value pairs.
|
|
type IteratorWithKey interface {
|
|
// Next moves the iterator to the next element and returns true if there was a next element in the container.
|
|
// If Next() returns true, then next element's key and value can be retrieved by Key() and Value().
|
|
// If Next() was called for the first time, then it will point the iterator to the first element if it exists.
|
|
// Modifies the state of the iterator.
|
|
Next() bool
|
|
|
|
// Value returns the current element's value.
|
|
// Does not modify the state of the iterator.
|
|
Value() interface{}
|
|
|
|
// Key returns the current element's key.
|
|
// Does not modify the state of the iterator.
|
|
Key() interface{}
|
|
|
|
// Begin resets the iterator to its initial state (one-before-first)
|
|
// Call Next() to fetch the first element if any.
|
|
Begin()
|
|
|
|
// First moves the iterator to the first element and returns true if there was a first element in the container.
|
|
// If First() returns true, then first element's key and value can be retrieved by Key() and Value().
|
|
// Modifies the state of the iterator.
|
|
First() bool
|
|
|
|
// NextTo moves the iterator to the next element from current position that satisfies the condition given by the
|
|
// passed function, and returns true if there was a next element in the container.
|
|
// If NextTo() returns true, then next element's key and value can be retrieved by Key() and Value().
|
|
// Modifies the state of the iterator.
|
|
NextTo(func(key interface{}, value interface{}) bool) bool
|
|
}
|
|
|
|
// ReverseIteratorWithIndex is stateful iterator for ordered containers whose values can be fetched by an index.
|
|
//
|
|
// Essentially it is the same as IteratorWithIndex, but provides additional:
|
|
//
|
|
// Prev() function to enable traversal in reverse
|
|
//
|
|
// Last() function to move the iterator to the last element.
|
|
//
|
|
// End() function to move the iterator past the last element (one-past-the-end).
|
|
type ReverseIteratorWithIndex interface {
|
|
// Prev moves the iterator to the previous element and returns true if there was a previous element in the container.
|
|
// If Prev() returns true, then previous element's index and value can be retrieved by Index() and Value().
|
|
// Modifies the state of the iterator.
|
|
Prev() bool
|
|
|
|
// End moves the iterator past the last element (one-past-the-end).
|
|
// Call Prev() to fetch the last element if any.
|
|
End()
|
|
|
|
// Last moves the iterator to the last element and returns true if there was a last element in the container.
|
|
// If Last() returns true, then last element's index and value can be retrieved by Index() and Value().
|
|
// Modifies the state of the iterator.
|
|
Last() bool
|
|
|
|
// PrevTo moves the iterator to the previous element from current position that satisfies the condition given by the
|
|
// passed function, and returns true if there was a next element in the container.
|
|
// If PrevTo() returns true, then next element's index and value can be retrieved by Index() and Value().
|
|
// Modifies the state of the iterator.
|
|
PrevTo(func(index int, value interface{}) bool) bool
|
|
|
|
IteratorWithIndex
|
|
}
|
|
|
|
// ReverseIteratorWithKey is a stateful iterator for ordered containers whose elements are key value pairs.
|
|
//
|
|
// Essentially it is the same as IteratorWithKey, but provides additional:
|
|
//
|
|
// Prev() function to enable traversal in reverse
|
|
//
|
|
// Last() function to move the iterator to the last element.
|
|
type ReverseIteratorWithKey interface {
|
|
// Prev moves the iterator to the previous element and returns true if there was a previous element in the container.
|
|
// If Prev() returns true, then previous element's key and value can be retrieved by Key() and Value().
|
|
// Modifies the state of the iterator.
|
|
Prev() bool
|
|
|
|
// End moves the iterator past the last element (one-past-the-end).
|
|
// Call Prev() to fetch the last element if any.
|
|
End()
|
|
|
|
// Last moves the iterator to the last element and returns true if there was a last element in the container.
|
|
// If Last() returns true, then last element's key and value can be retrieved by Key() and Value().
|
|
// Modifies the state of the iterator.
|
|
Last() bool
|
|
|
|
// PrevTo moves the iterator to the previous element from current position that satisfies the condition given by the
|
|
// passed function, and returns true if there was a next element in the container.
|
|
// If PrevTo() returns true, then next element's key and value can be retrieved by Key() and Value().
|
|
// Modifies the state of the iterator.
|
|
PrevTo(func(key interface{}, value interface{}) bool) bool
|
|
|
|
IteratorWithKey
|
|
}
|