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Pull Request — master (#160)
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util-text-encoding.ts ➔ encodingFromStringOrByte   A

↳ Parent: src/util-text-encoding.ts

Complexity

Conditions 3

Size

Total Lines 16
Code Lines 13

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
eloc 13
dl 0
loc 16
rs 9.75
c 0
b 0
f 0
cc 3
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import iconv = require('iconv-lite')
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import { isString } from "./util"
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export function stringToEncodedBuffer(

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    value: string,

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    encodingByte: string | number

            


            
                                                                                                            
                            
            
                                    
            
            

                
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) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    return iconv.encode(

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        value,

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        encodingFromStringOrByte(encodingByte)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    )

            


            
                                                                                                            
                            
            
                                    
            
            

                
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}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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export function bufferToDecodedString(

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    buffer: Buffer,

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    encodingByte: string | number

            


            
                                                                                                            
                            
            
                                    
            
            

                
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) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    return iconv.decode(

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        buffer,

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        encodingFromStringOrByte(encodingByte)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    ).replace(/\0/g, '')

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}

            


            
                                                                        
                            
            
                                    
            
            

                
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function encodingFromStringOrByte(encoding: string | number) {

            


            
                                                                        
                            
            
                                    
            
            

                
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    const ENCODINGS = [

            


            
                                                                        
                            
            
                                    
            
            

                
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        'ISO-8859-1', 'UTF-16', 'UTF-16BE', 'UTF-8'

            


            
                                                                        
                            
            
                                    
            
            

                
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    ]

            


            
                                                                        
                            
            
                                    
            
            

                
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    if (isString(encoding) && ENCODINGS.includes(encoding)) {

            


            
                                                                        
                            
            
                                    
            
            

                
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        return encoding

            


            
                                                                        
                            
            
                                    
            
            

                
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    }

            


            
                                                                        
                            
            
                                    
            
            

                
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    if (

            


            
                                                                        
                            
            
                                    
            
            

                
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        typeof encoding === "number" &&

            


            
                                                                        
                            
            
                                    
            
            

                
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        encoding >= 0 && encoding < ENCODINGS.length

            


            
                                                                        
                            
            
                                    
            
            

                
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    ) {

            


            
                                                                        
                            
            
                                    
            
            

                
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        return ENCODINGS[encoding]

            


            
                                                                        
                            
            
                                    
            
            

                
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    }

            


            
                                                                        
                            
            
                                    
            
            

                
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    return ENCODINGS[0]

            


            
                                                                                                            
                            
            
                                    
            
            

                
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}

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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