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mod picker_struct;
extern crate regex;
use picker_struct::{EmojiData, EMOJI_DATA};
use regex::{escape, Regex};
pub use picker_struct::*;
pub enum Language {
En,
Es,
Ger,
Fr,
Zh,
Ja,
}
pub struct EmojiUtil {
pub current_emojis: Option<Vec<&'static EmojiData>>,
pub search_string: Option<String>,
pub language: Language,
}
impl EmojiUtil {
pub fn new(lang: Language) -> EmojiUtil {
EmojiUtil {
current_emojis: Some(EMOJI_DATA.iter().collect()),
search_string: None,
language: lang,
}
}
pub fn search(&mut self, search_string: String) {
self.current_emojis = emoji_search(search_string, &self.language)
}
pub fn clear_search(&mut self) {
self.search_string = None;
self.current_emojis = Some(EMOJI_DATA.iter().collect())
}
pub fn set_language(&mut self, language: Language) {
self.language = language;
}
}
fn emoji_search(search_string: String, lang: &Language) -> Option<Vec<&'static EmojiData>> {
if let Ok(re) = Regex::new(&escape(&search_string)) {
Some(
EMOJI_DATA
.iter()
.enumerate()
.filter(|(_, datum)| datum.tags.iter().any(|tag| re.is_match(tag)))
.map(|(i, _)| translate(i, lang))
.collect(),
)
} else {
None
}
}
fn translate(index: usize, lang: &Language) -> &'static EmojiData {
match lang {
_ => &EMOJI_DATA[index],
}
}
#[cfg(test)]
mod tests {
use super::*;
use std::fmt::{Debug, Formatter, Result};
impl PartialEq for EmojiData {
fn eq(&self, other: &Self) -> bool {
self.emoji == other.emoji
}
}
impl Debug for EmojiData {
fn fmt(&self, f: &mut Formatter<'_>) -> Result {
write!(f, "({})", self.emoji)
}
}
#[test]
fn emoji_search_test() {
let mut eu = EmojiUtil::new(Language::En);
eu.search(String::from("thumb"));
assert_eq!(
Some(vec![
&EmojiData {
emoji: "👍",
tags: &[],
skintone_modifier: false,
},
&EmojiData {
emoji: "👎",
tags: &[],
skintone_modifier: false,
}
]),
eu.current_emojis
);
}
#[test]
fn clear_search() {
let mut eu = EmojiUtil::new(Language::En);
let orig_clone = eu.current_emojis.clone();
eu.search(String::from("thumb"));
assert_eq!(
Some(vec![
&EmojiData {
emoji: "👍",
tags: &[],
skintone_modifier: false,
},
&EmojiData {
emoji: "👎",
tags: &[],
skintone_modifier: false,
}
]),
eu.current_emojis
);
eu.clear_search();
assert_eq!(orig_clone, eu.current_emojis);
}
}