42 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			42 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Go
		
	
	
	
| // Copyright 2022 The Gitea Authors. All rights reserved.
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| // SPDX-License-Identifier: MIT
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| 
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| package i18n
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| 
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| import (
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| 	"fmt"
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| 	"reflect"
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| )
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| 
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| // Format formats provided arguments for a given translated message
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| func Format(format string, args ...any) (msg string, err error) {
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| 	if len(args) == 0 {
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| 		return format, nil
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| 	}
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| 
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| 	fmtArgs := make([]any, 0, len(args))
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| 	for _, arg := range args {
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| 		val := reflect.ValueOf(arg)
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| 		if val.Kind() == reflect.Slice {
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| 			// Previously, we would accept Tr(lang, key, a, [b, c], d, [e, f]) as Sprintf(msg, a, b, c, d, e, f)
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| 			// but this is an unstable behavior.
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| 			//
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| 			// So we restrict the accepted arguments to either:
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| 			//
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| 			// 1. Tr(lang, key, [slice-items]) as Sprintf(msg, items...)
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| 			// 2. Tr(lang, key, args...) as Sprintf(msg, args...)
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| 			if len(args) == 1 {
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| 				for i := 0; i < val.Len(); i++ {
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| 					fmtArgs = append(fmtArgs, val.Index(i).Interface())
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| 				}
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| 			} else {
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| 				err = ErrUncertainArguments
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| 				break
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| 			}
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| 		} else {
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| 			fmtArgs = append(fmtArgs, arg)
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| 		}
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| 	}
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| 	return fmt.Sprintf(format, fmtArgs...), err
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| }
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