46 lines
806 B
Go
46 lines
806 B
Go
// For more tutorials: https://bp.learngoprogramming.com
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//
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// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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package pipe
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import (
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"bufio"
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"io"
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)
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// TextLog parses text based log lines.
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type TextLog struct {
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reader io.Reader
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}
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// NewTextLog creates a text parser.
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func NewTextLog(r io.Reader) *TextLog {
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return &TextLog{reader: r}
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}
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// Each yields records from a text log.
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func (p *TextLog) Each(yield func(Record) error) error {
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defer readClose(p.reader)
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// Use the same record for unmarshaling.
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var r Record
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in := bufio.NewScanner(p.reader)
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for in.Scan() {
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if err := r.UnmarshalText(in.Bytes()); err != nil {
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return err
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}
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if err := yield(r); err != nil {
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return err
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}
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}
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return in.Err()
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}
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