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Documentation

Index

• Constants
• func Grep(pattern GrepPattern, opts ...any) gloo.Command[[]byte, []byte]
• type GrepPattern

Constants

const (
	GrepIgnoreCase   grepIgnoreCaseFlag = true
	GrepNoIgnoreCase grepIgnoreCaseFlag = false
)

const (
	GrepInvert   grepInvertFlag = true
	GrepNoInvert grepInvertFlag = false
)

const (
	GrepWholeLine   grepWholeLineFlag = true
	GrepNoWholeLine grepWholeLineFlag = false
)

const (
	GrepExtended   grepExtendedFlag = true
	GrepNoExtended grepExtendedFlag = false
)

const (
	GrepWord   grepWordFlag = true
	GrepNoWord grepWordFlag = false
)

const (
	GrepLineNumbers   grepLineNumbersFlag = true
	GrepNoLineNumbers grepLineNumbersFlag = false
)

const (
	GrepCount   grepCountFlag = true
	GrepNoCount grepCountFlag = false
)

const ErrInvalidPattern errs.Const = "invalid pattern"

ErrInvalidPattern wraps a regular expression that fails to compile (-E/-w).

Functions

func Grep

func Grep(pattern GrepPattern, opts ...any) gloo.Command[[]byte, []byte]

Grep returns a Command that filters lines matching pattern. pattern is a required positional argument; the remaining options select the match mode.

Flags:

• GrepIgnoreCase (-i): case-insensitive matching
• GrepInvert (-v): emit non-matching lines
• GrepWholeLine (-x): match only when the whole line equals the pattern
• GrepExtended (-E): interpret the pattern as an extended regular expression
• GrepWord (-w): match only at word boundaries
• GrepLineNumbers (-n): prefix each emitted line with its line number
• GrepCount (-c): emit the count of matching lines instead of the lines

Types

type GrepPattern

type GrepPattern string

GrepPattern is the pattern grep matches each line against: a literal substring by default, or a regular expression under -E/-w.