codesnips

parsing

python 
from defusedxml.ElementTree import fromstring

payload = request.data.decode('utf-8')
root = fromstring(payload)
invoice_number = root.findtext('invoice_number')

XXE safe XML parsing with external entity resolution disabled

xxe xml parsing
by Kai Nakamura 1 tab
rust 
use std::collections::HashMap;

#[derive(Debug, PartialEq)]
pub enum LogLevel {
    Info,
    Warn,

Streaming Log File Aggregation With Buffered Line Iteration in Rust

rust streaming file-io
by codesnips 3 tabs
swift 
import Foundation

// MARK: - Basic Codable
struct User: Codable {
    let id: Int
    let username: String

JSON encoding and decoding with Codable

swift codable json
by Sofia Martinez 1 tab
rust 
use nom::{
    bytes::complete::tag,
    character::complete::digit1,
    IResult,
};

nom for parser combinators and zero-copy parsing

rust parsing nom
by Marcus Chen 1 tab
python 
from dataclasses import dataclass


class ConfigError(Exception):
    pass

Typed Argparse Subcommands with Dataclasses and Handler Dispatch

argparse cli dataclasses
by codesnips 3 tabs
rust 
use serde::{Deserialize, Deserializer};

#[derive(Debug, Deserialize)]
pub struct ListFilter {
    #[serde(default)]
    pub status: Status,

Parse URL Query Strings into a Typed Filter Struct with Defaults in Rust

rust serde query-string
by codesnips 3 tabs
rust 
use std::error::Error;
use std::fmt;
use std::io;
use std::num::ParseIntError;

#[derive(Debug)]

Custom Error Enum With From Conversions for the ? Operator in Rust

rust error-handling traits
by codesnips 3 tabs
python 
import re

text = 'INC-102301 resolved on 2026-04-06 after payment failure for order ORD-99182.'

patterns = {
    'incident_id': r'INC-[0-9]{6}',

Regular expressions for extracting structured entities from raw text

regex text-processing parsing
by Dr. Elena Vasquez 1 tab