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Translating Python to Rust: reading a Salesforce ID from a string
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$begingroup$
As a first project in Rust, I'm translating an existing, working piece of Python code. This code's purpose is to convert a 15-character Salesforce Id (which is guaranteed to be ASCII, exactly 15 bytes of base-62 data) to its 18-character equivalent, which includes a 3-character suffix to discriminate between values differing from one another only in case.
The Rust code works. I am looking for guidance on how to improve its idiomaticity in Rust, particularly around processing this type of data. It's a String conceptually, but doesn't need the overhead of UTF-8 handling, and is likely to be read from (e.g.) CSV files or Web services that do return UTF-8 encoded data.
I also suspect that the way I handle the "accumulator" values suffix and base_two is not proper Rust and welcome education there.
Python
class SalesforceId(object):
def __init__(self, idstr):
if isinstance(idstr, SalesforceId):
self.id = idstr.id
else:
idstr = idstr.strip()
if len(idstr) == 15:
suffix = ''
for i in range(0, 3):
baseTwo = 0
for j in range (0, 5):
character = idstr[i*5+j]
if character >= 'A' and character <= 'Z':
baseTwo += 1 << j
suffix += 'ABCDEFGHIJKLMNOPQRSTUVWXYZ012345'[baseTwo]
self.id = idstr + suffix
elif len(idstr) == 18:
self.id = idstr
else:
raise ValueError('Salesforce Ids must be 15 or 18 characters.')
Rust
#[derive(Debug)]
struct SalesforceId(String);
impl SalesforceId {
fn from_string(s: &str) -> SalesforceId {
let b = s.as_bytes();
match b.len() {
18 => { SalesforceId(s.to_string()) }
15 => {
let mut suffix: [u8; 3] = [b'A', b'A', b'A'];
for i in 0..3 {
let mut base_two = 0;
for j in 0..5 {
let character = b[i*5+j];
if character >= b'A' && character <= b'Z' {
base_two += 1 << j;
}
}
suffix[i] = b'A' + base_two
}
SalesforceId(format!("{}{}", s, std::str::from_utf8(&suffix).unwrap()))
}
_ => panic!("invalid Salesforce Id")
}
}
}
fn main() {
println!("{:?}", SalesforceId::from_string("0063600000aqQ1h"));
}
beginner rust base64
edited 3 mins ago
200_success
130k16153419
asked 19 mins ago
David ReedDavid Reed
1062
New contributor
David Reed is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
As a first project in Rust, I'm translating an existing, working piece of Python code. This code's purpose is to convert a 15-character Salesforce Id (which is guaranteed to be ASCII, exactly 15 bytes of base-62 data) to its 18-character equivalent, which includes a 3-character suffix to discriminate between values differing from one another only in case.
The Rust code works. I am looking for guidance on how to improve its idiomaticity in Rust, particularly around processing this type of data. It's a String conceptually, but doesn't need the overhead of UTF-8 handling, and is likely to be read from (e.g.) CSV files or Web services that do return UTF-8 encoded data.
I also suspect that the way I handle the "accumulator" values suffix and base_two is not proper Rust and welcome education there.
Python
class SalesforceId(object):
def __init__(self, idstr):
if isinstance(idstr, SalesforceId):
self.id = idstr.id
else:
idstr = idstr.strip()
if len(idstr) == 15:
suffix = ''
for i in range(0, 3):
baseTwo = 0
for j in range (0, 5):
character = idstr[i*5+j]
if character >= 'A' and character <= 'Z':
baseTwo += 1 << j
suffix += 'ABCDEFGHIJKLMNOPQRSTUVWXYZ012345'[baseTwo]
self.id = idstr + suffix
elif len(idstr) == 18:
self.id = idstr
else:
raise ValueError('Salesforce Ids must be 15 or 18 characters.')
Rust
#[derive(Debug)]
struct SalesforceId(String);
impl SalesforceId {
fn from_string(s: &str) -> SalesforceId {
let b = s.as_bytes();
match b.len() {
18 => { SalesforceId(s.to_string()) }
15 => {
let mut suffix: [u8; 3] = [b'A', b'A', b'A'];
for i in 0..3 {
let mut base_two = 0;
for j in 0..5 {
let character = b[i*5+j];
if character >= b'A' && character <= b'Z' {
base_two += 1 << j;
}
}
suffix[i] = b'A' + base_two
}
SalesforceId(format!("{}{}", s, std::str::from_utf8(&suffix).unwrap()))
}
_ => panic!("invalid Salesforce Id")
}
}
}
fn main() {
println!("{:?}", SalesforceId::from_string("0063600000aqQ1h"));
}
beginner rust base64
edited 3 mins ago
200_success
130k16153419
asked 19 mins ago
David ReedDavid Reed
1062
New contributor
David Reed is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
As a first project in Rust, I'm translating an existing, working piece of Python code. This code's purpose is to convert a 15-character Salesforce Id (which is guaranteed to be ASCII, exactly 15 bytes of base-62 data) to its 18-character equivalent, which includes a 3-character suffix to discriminate between values differing from one another only in case.
The Rust code works. I am looking for guidance on how to improve its idiomaticity in Rust, particularly around processing this type of data. It's a String conceptually, but doesn't need the overhead of UTF-8 handling, and is likely to be read from (e.g.) CSV files or Web services that do return UTF-8 encoded data.
I also suspect that the way I handle the "accumulator" values suffix and base_two is not proper Rust and welcome education there.
Python
class SalesforceId(object):
def __init__(self, idstr):
if isinstance(idstr, SalesforceId):
self.id = idstr.id
else:
idstr = idstr.strip()
if len(idstr) == 15:
suffix = ''
for i in range(0, 3):
baseTwo = 0
for j in range (0, 5):
character = idstr[i*5+j]
if character >= 'A' and character <= 'Z':
baseTwo += 1 << j
suffix += 'ABCDEFGHIJKLMNOPQRSTUVWXYZ012345'[baseTwo]
self.id = idstr + suffix
elif len(idstr) == 18:
self.id = idstr
else:
raise ValueError('Salesforce Ids must be 15 or 18 characters.')
Rust
#[derive(Debug)]
struct SalesforceId(String);
impl SalesforceId {
fn from_string(s: &str) -> SalesforceId {
let b = s.as_bytes();
match b.len() {
18 => { SalesforceId(s.to_string()) }
15 => {
let mut suffix: [u8; 3] = [b'A', b'A', b'A'];
for i in 0..3 {
let mut base_two = 0;
for j in 0..5 {
let character = b[i*5+j];
if character >= b'A' && character <= b'Z' {
base_two += 1 << j;
}
}
suffix[i] = b'A' + base_two
}
SalesforceId(format!("{}{}", s, std::str::from_utf8(&suffix).unwrap()))
}
_ => panic!("invalid Salesforce Id")
}
}
}
fn main() {
println!("{:?}", SalesforceId::from_string("0063600000aqQ1h"));
}
beginner rust base64
edited 3 mins ago
200_success
130k16153419
asked 19 mins ago
David ReedDavid Reed
1062
New contributor
David Reed is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
As a first project in Rust, I'm translating an existing, working piece of Python code. This code's purpose is to convert a 15-character Salesforce Id (which is guaranteed to be ASCII, exactly 15 bytes of base-62 data) to its 18-character equivalent, which includes a 3-character suffix to discriminate between values differing from one another only in case.
The Rust code works. I am looking for guidance on how to improve its idiomaticity in Rust, particularly around processing this type of data. It's a String conceptually, but doesn't need the overhead of UTF-8 handling, and is likely to be read from (e.g.) CSV files or Web services that do return UTF-8 encoded data.
I also suspect that the way I handle the "accumulator" values suffix and base_two is not proper Rust and welcome education there.
Python
class SalesforceId(object):
def __init__(self, idstr):
if isinstance(idstr, SalesforceId):
self.id = idstr.id
else:
idstr = idstr.strip()
if len(idstr) == 15:
suffix = ''
for i in range(0, 3):
baseTwo = 0
for j in range (0, 5):
character = idstr[i*5+j]
if character >= 'A' and character <= 'Z':
baseTwo += 1 << j
suffix += 'ABCDEFGHIJKLMNOPQRSTUVWXYZ012345'[baseTwo]
self.id = idstr + suffix
elif len(idstr) == 18:
self.id = idstr
else:
raise ValueError('Salesforce Ids must be 15 or 18 characters.')
Rust
#[derive(Debug)]
struct SalesforceId(String);
impl SalesforceId {
fn from_string(s: &str) -> SalesforceId {
let b = s.as_bytes();
match b.len() {
18 => { SalesforceId(s.to_string()) }
15 => {
let mut suffix: [u8; 3] = [b'A', b'A', b'A'];
for i in 0..3 {
let mut base_two = 0;
for j in 0..5 {
let character = b[i*5+j];
if character >= b'A' && character <= b'Z' {
base_two += 1 << j;
}
}
suffix[i] = b'A' + base_two
}
SalesforceId(format!("{}{}", s, std::str::from_utf8(&suffix).unwrap()))
}
_ => panic!("invalid Salesforce Id")
}
}
}
fn main() {
println!("{:?}", SalesforceId::from_string("0063600000aqQ1h"));
}
beginner rust base64
beginner rust base64
edited 3 mins ago
200_success
130k16153419
asked 19 mins ago
David ReedDavid Reed
1062
New contributor
David Reed is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 3 mins ago
200_success
130k16153419
asked 19 mins ago
David ReedDavid Reed
1062
New contributor
David Reed is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 3 mins ago
200_success
130k16153419
edited 3 mins ago
200_success
130k16153419
edited 3 mins ago
200_success
130k16153419
130k16153419
asked 19 mins ago
David ReedDavid Reed
1062
New contributor
David Reed is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 19 mins ago
David ReedDavid Reed
1062
asked 19 mins ago
David ReedDavid Reed
1062
1062
New contributor
David Reed is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
David Reed is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
David Reed is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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