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text.go
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text.go
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package log
import (
"fmt"
"strings"
"time"
)
func (l *Logger) textFormatter(keyvals ...interface{}) {
for i := 0; i < len(keyvals); i += 2 {
switch keyvals[i] {
case TimestampKey:
if t, ok := keyvals[i+1].(time.Time); ok {
ts := t.Format(l.timeFormat)
if !l.notStyles {
ts = TimestampStyle.Render(ts)
}
l.b.WriteString(ts)
l.b.WriteByte(' ')
}
case LevelKey:
if level, ok := keyvals[i+1].(Level); ok {
lvl := strings.ToUpper(level.String())
if !l.notStyles {
lvl = levelStyle(level).String()
}
l.b.WriteString(lvl)
l.b.WriteByte(' ')
}
case CallerKey:
if caller, ok := keyvals[i+1].(string); ok {
caller = fmt.Sprintf("<%s>", caller)
caller = CallerStyle.Render(caller)
l.b.WriteString(caller)
l.b.WriteByte(' ')
}
case MessageKey:
if msg := keyvals[i+1]; msg != nil {
m := fmt.Sprint(msg)
l.b.WriteString(m)
}
}
}
// Add a newline in log message.
l.b.WriteByte('\n')
}