Documentation
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Index ¶
- func CountLines(file string) (int, error)
- func DupReadCloser(reader io.ReadCloser) (io.ReadCloser, io.ReadCloser)
- func NopCloser(w io.Writer) io.WriteCloser
- func ReadBytes(reader io.Reader, buf []byte) error
- func ReadText(filename string) (string, error)
- func ReadTextLines(filename string, opts ...TextReadOption) ([]string, error)
- func RedirectInOut() (restore func(), err error)
- type BufferPool
- type TextLineScanner
- type TextReadOption
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func CountLines ¶
CountLines returns the number of lines in file.
func DupReadCloser ¶
func DupReadCloser(reader io.ReadCloser) (io.ReadCloser, io.ReadCloser)
DupReadCloser 返回两个io.ReadCloser 需要先读取第一个io.ReadCloser的内容，因为只有读过的内容才会被写入到第二个io.ReadCloser中
func NopCloser ¶
func NopCloser(w io.Writer) io.WriteCloser
NopCloser returns a io.WriteCloser that does nothing on calling Close.
func ReadTextLines ¶
func ReadTextLines(filename string, opts ...TextReadOption) ([]string, error)
ReadTextLines 从指定filename中读取文本行
func RedirectInOut ¶
func RedirectInOut() (restore func(), err error)
RedirectInOut redirects stdin to r, stdout to w, and callers need to call restore afterwards.
Types ¶
type BufferPool ¶
type BufferPool struct {
// contains filtered or unexported fields
}
A BufferPool is a pool to buffer bytes.Buffer objects.
func NewBufferPool ¶
func NewBufferPool(capability int) *BufferPool
NewBufferPool returns a BufferPool.
func (*BufferPool) Get ¶
func (bp *BufferPool) Get() *bytes.Buffer
Get returns a bytes.Buffer object from bp.
type TextLineScanner ¶
type TextLineScanner struct {
// contains filtered or unexported fields
}
A TextLineScanner is a scanner that can scan lines from given reader.
func NewTextLineScanner ¶
func NewTextLineScanner(reader io.Reader) *TextLineScanner
NewTextLineScanner returns a TextLineScanner with given reader.
func (*TextLineScanner) Line ¶
func (scanner *TextLineScanner) Line() (string, error)
Line returns the next available line.
func (*TextLineScanner) Scan ¶
func (scanner *TextLineScanner) Scan() bool
Scan checks if scanner has more lines to read.
type TextReadOption ¶
type TextReadOption func(*textReadOptions)
TextReadOption 用于自定义textReadOptions对象
func OmitWithPrefix ¶
func OmitWithPrefix(prefix string) TextReadOption
OmitWithPrefix 让ReadTextLines函数在收集文本行的时候忽略含有prefix前缀的文本行
Source Files