Swift translate string to special Data buffer
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I am having trouble figuring out how to translate a string (named str) into a Data buffer (named strData) that can be decoded using this particular process: strData.reduce("", {$0 + String(format: "%02X", $1)})
import Foundation
let str = "Hello world"
let strData: Data = str.data(using: .utf8)! // Wrong. What here?
let decoded = strData.reduce("", {$0 + String(format: "%02X", $1)})
print(decoded == str)
The print statement should print true.
This is Testable here.
Thank you.
swift
edited Nov 5 at 3:48
Joel
1,4425719
asked Nov 5 at 3:35
ajf-
1001
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ajf- is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
up vote
-2
down vote
favorite
I am having trouble figuring out how to translate a string (named str) into a Data buffer (named strData) that can be decoded using this particular process: strData.reduce("", {$0 + String(format: "%02X", $1)})
import Foundation
let str = "Hello world"
let strData: Data = str.data(using: .utf8)! // Wrong. What here?
let decoded = strData.reduce("", {$0 + String(format: "%02X", $1)})
print(decoded == str)
The print statement should print true.
This is Testable here.
Thank you.
swift
edited Nov 5 at 3:48
Joel
1,4425719
asked Nov 5 at 3:35
ajf-
1001
New contributor
ajf- is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
decodedis obviously a bunch of hex characters, which never equals "Hello world". What do you actually want to compare?
– Ricky Mo
Nov 5 at 3:40
I need to feed a known string value to a function that uses this particular.reducein order to retrieve it. The library assumes the data will be fed using a Data buffer, so I need to convert my string into it.
– ajf-
Nov 5 at 3:44
That.reducemethod always generate a hex string representation of the data, which will never equal to the original string.
– Ricky Mo
Nov 5 at 3:48
Assuming the original string is a hex representation, then, would this be possible? or would the decoded value not equal the original hex value?
– ajf-
Nov 5 at 3:50
If the original string is a hex representation, you can easily find some hex to data method to turn it intoData, like this https://stackoverflow.com/a/26503955/10317684
– Ricky Mo
Nov 5 at 3:55
add a comment |
up vote
-2
down vote
favorite
up vote
-2
down vote
favorite
I am having trouble figuring out how to translate a string (named str) into a Data buffer (named strData) that can be decoded using this particular process: strData.reduce("", {$0 + String(format: "%02X", $1)})
import Foundation
let str = "Hello world"
let strData: Data = str.data(using: .utf8)! // Wrong. What here?
let decoded = strData.reduce("", {$0 + String(format: "%02X", $1)})
print(decoded == str)
The print statement should print true.
This is Testable here.
Thank you.
swift
edited Nov 5 at 3:48
Joel
1,4425719
asked Nov 5 at 3:35
ajf-
1001
New contributor
ajf- is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am having trouble figuring out how to translate a string (named str) into a Data buffer (named strData) that can be decoded using this particular process: strData.reduce("", {$0 + String(format: "%02X", $1)})
import Foundation
let str = "Hello world"
let strData: Data = str.data(using: .utf8)! // Wrong. What here?
let decoded = strData.reduce("", {$0 + String(format: "%02X", $1)})
print(decoded == str)
The print statement should print true.
This is Testable here.
Thank you.
swift
swift
edited Nov 5 at 3:48
Joel
1,4425719
asked Nov 5 at 3:35
ajf-
1001
New contributor
ajf- is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited Nov 5 at 3:48
Joel
1,4425719
asked Nov 5 at 3:35
ajf-
1001
New contributor
ajf- is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited Nov 5 at 3:48
Joel
1,4425719
edited Nov 5 at 3:48
Joel
1,4425719
edited Nov 5 at 3:48
Joel
1,4425719
1,4425719
asked Nov 5 at 3:35
ajf-
1001
New contributor
ajf- is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Nov 5 at 3:35
ajf-
1001
asked Nov 5 at 3:35
ajf-
1001
1001
New contributor
ajf- is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
ajf- is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
ajf- is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
decodedis obviously a bunch of hex characters, which never equals "Hello world". What do you actually want to compare?
– Ricky Mo
Nov 5 at 3:40
I need to feed a known string value to a function that uses this particular.reducein order to retrieve it. The library assumes the data will be fed using a Data buffer, so I need to convert my string into it.
– ajf-
Nov 5 at 3:44
That.reducemethod always generate a hex string representation of the data, which will never equal to the original string.
– Ricky Mo
Nov 5 at 3:48
Assuming the original string is a hex representation, then, would this be possible? or would the decoded value not equal the original hex value?
– ajf-
Nov 5 at 3:50
If the original string is a hex representation, you can easily find some hex to data method to turn it intoData, like this https://stackoverflow.com/a/26503955/10317684
– Ricky Mo
Nov 5 at 3:55
add a comment |
decodedis obviously a bunch of hex characters, which never equals "Hello world". What do you actually want to compare?
– Ricky Mo
Nov 5 at 3:40
I need to feed a known string value to a function that uses this particular.reducein order to retrieve it. The library assumes the data will be fed using a Data buffer, so I need to convert my string into it.
– ajf-
Nov 5 at 3:44
That.reducemethod always generate a hex string representation of the data, which will never equal to the original string.
– Ricky Mo
Nov 5 at 3:48
Assuming the original string is a hex representation, then, would this be possible? or would the decoded value not equal the original hex value?
– ajf-
Nov 5 at 3:50
If the original string is a hex representation, you can easily find some hex to data method to turn it intoData, like this https://stackoverflow.com/a/26503955/10317684
– Ricky Mo
Nov 5 at 3:55
decoded is obviously a bunch of hex characters, which never equals "Hello world". What do you actually want to compare?– Ricky Mo
Nov 5 at 3:40
decoded is obviously a bunch of hex characters, which never equals "Hello world". What do you actually want to compare?– Ricky Mo
Nov 5 at 3:40
I need to feed a known string value to a function that uses this particular
.reduce in order to retrieve it. The library assumes the data will be fed using a Data buffer, so I need to convert my string into it.– ajf-
Nov 5 at 3:44
I need to feed a known string value to a function that uses this particular
.reduce in order to retrieve it. The library assumes the data will be fed using a Data buffer, so I need to convert my string into it.– ajf-
Nov 5 at 3:44
That
.reduce method always generate a hex string representation of the data, which will never equal to the original string.– Ricky Mo
Nov 5 at 3:48
That
.reduce method always generate a hex string representation of the data, which will never equal to the original string.– Ricky Mo
Nov 5 at 3:48
Assuming the original string is a hex representation, then, would this be possible? or would the decoded value not equal the original hex value?
– ajf-
Nov 5 at 3:50
Assuming the original string is a hex representation, then, would this be possible? or would the decoded value not equal the original hex value?
– ajf-
Nov 5 at 3:50
If the original string is a hex representation, you can easily find some hex to data method to turn it into
Data, like this https://stackoverflow.com/a/26503955/10317684– Ricky Mo
Nov 5 at 3:55
If the original string is a hex representation, you can easily find some hex to data method to turn it into
Data, like this https://stackoverflow.com/a/26503955/10317684– Ricky Mo
Nov 5 at 3:55
add a comment |
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decodedis obviously a bunch of hex characters, which never equals "Hello world". What do you actually want to compare?– Ricky Mo
Nov 5 at 3:40
I need to feed a known string value to a function that uses this particular
.reducein order to retrieve it. The library assumes the data will be fed using a Data buffer, so I need to convert my string into it.– ajf-
Nov 5 at 3:44
That
.reducemethod always generate a hex string representation of the data, which will never equal to the original string.– Ricky Mo
Nov 5 at 3:48
Assuming the original string is a hex representation, then, would this be possible? or would the decoded value not equal the original hex value?
– ajf-
Nov 5 at 3:50
If the original string is a hex representation, you can easily find some hex to data method to turn it into
Data, like this https://stackoverflow.com/a/26503955/10317684– Ricky Mo
Nov 5 at 3:55