Struct Formatify 

pub struct Formatify;

Formatify: Main struct for dynamic string formatting.

This struct is part of the formatify library, offering tools to parse strings with placeholders and replace them with values from a HashMap. It handles various placeholder formats and alignment options, suitable for adaptive text representation in diverse applications. Key functionalities include replacing placeholders, measuring string lengths with placeholders, and extracting placeholder keys.

Usage

Import the necessary modules and use Formatify for string formatting tasks:

use formatify::{Formatify, PlaceholderFormatter};
use std::collections::HashMap;

Features

1. Placeholder Replacement: Replace placeholders in strings with values from a HashMap.
2. Length Measurement: Measure lengths of strings and placeholders.
3. Placeholder Extraction: Extract placeholder keys from a string.

Examples

Replacing Placeholders

let mut key_value: HashMap<&str, String> = HashMap::new();
key_value.insert("name", "Alice".into());
let formatter = Formatify::new();
let formatted_string = formatter.replace_placeholders(&key_value, "Hello, %(name)!");
assert_eq!(formatted_string, "Hello, Alice!");

Measuring Lengths

let mut key_value: HashMap<&str, String> = HashMap::new();
key_value.insert("name", "Alice".into());
let formatter = Formatify::new();
let lengths = formatter.measure_lengths(&key_value, "Hello, %(name)! This is a test.");
assert_eq!(lengths, vec![29, 5]); // Total length with "Alice" as the placeholder, length of "Alice"

Extracting Placeholder Keys

let formatter = Formatify::new();
let placeholder_keys = formatter.extract_placeholder_keys("Hello, %(name)! Today is %(day).");
assert_eq!(placeholder_keys, vec!["name", "day"]);

Implementations

impl Formatify

pub fn new() -> Self

Trait Implementations

impl Default for Formatify

fn default() -> Self

Returns the “default value” for a type.

impl PlaceholderFormatter for Formatify

fn replace_placeholders( &self, key_value: &HashMap<&str, String>, inp: &str, ) -> String

Replaces placeholders in the input string with corresponding values from a HashMap.

fn measure_lengths( &self, key_value: &HashMap<&str, String>, inp: &str, ) -> Vec<usize>

Measures the length of the entire string and the lengths of valid placeholders within it.

fn extract_placeholder_keys(&self, inp: &str) -> Vec<String>

Extracts and lists all placeholder keys from a given string.