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//! A set of helper traits
pub use self::digit::Digit;
pub use self::html::HTML;
/// Convert i32 to specific digits string.
mod digit {
/// Abstract Digit trait, fill the empty space to specific length.
pub trait Digit<T> {
fn digit(self, d: T) -> String;
}
impl Digit<i32> for i32 {
fn digit(self, d: i32) -> String {
let mut s = self.to_string();
let space = " ".repeat((d as usize) - s.len());
s.push_str(&space);
s
}
}
impl Digit<i32> for String {
fn digit(self, d: i32) -> String {
let mut s = self.clone();
let space = " ".repeat((d as usize) - self.len());
s.push_str(&space);
s
}
}
impl Digit<i32> for &'static str {
fn digit(self, d: i32) -> String {
let mut s = self.to_string();
let space = " ".repeat((d as usize) - self.len());
s.push_str(&space);
s
}
}
}
/// Render html to command-line
mod html {
// use crate::Error;
use colored::Colorize;
pub enum Token {
Plain(String),
Bold(String),
Eof(String)
}
/// html render plugin
pub trait HTML {
fn ser(&self) -> Vec<Token>;
fn render(&self) -> String;
}
impl HTML for String {
fn ser(&self) -> Vec<Token> {
// empty tags
let mut tks = self.to_string();
// converting symbols
tks = tks.replace(r#"<"#, "<");
tks = tks.replace(r#">"#, ">");
tks = tks.replace(r#"&"#, "&");
tks = tks.replace(r#"""#, "\"");
tks = tks.replace(r#" "#, " ");
let res: Vec<Token>;
// styled
{
let mut ptr = 0;
let mut output = vec![];
let mut bold = false;
for (i, e) in tks.chars().enumerate() {
match e {
'<' => {
match bold {
true => {
output.push(Token::Bold(tks[ptr..i].to_string()));
bold = false;
}
false => output.push(
Token::Plain(tks[ptr..i].to_string())
),
}
ptr = i;
},
'>' => {
match &tks[i-1..i] {
"-" => continue,
_ => match &tks[(ptr + 1)..i] {
"b" | "strong" => bold = true,
_ => {},
},
}
ptr = i + 1;
},
_ => {},
}
};
output.push(Token::Eof(tks[ptr..tks.len()].to_string()));
res = output;
}
res
}
fn render(&self) -> String {
let ts = self.ser();
let mut tks: Vec<String> = vec![];
for i in ts {
match i {
Token::Plain(s) => tks.push(s.normal().to_string()),
Token::Bold(s) => {
if s.contains("Example") {
let mut br = "-".repeat(50).dimmed().to_string();
br.push_str("\n\n");
tks.push(br);
} else if s.contains("Note") {
let mut br = "* ".repeat(25).dimmed().to_string();
br.push_str("\n\n");
tks.push(br);
}
tks.push(s.bold().to_string());
}
Token::Eof(s) => tks.push(s.normal().to_string()),
}
}
tks.join("")
}
}
}