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improve announce example

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This commit is contained in:
Vinzenz Schroeter 2024-10-13 13:40:26 +02:00
parent dbbe631741
commit f7fddda8f1
1 changed files with 16 additions and 10 deletions
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26
crates/servicepoint/examples/announce.rs
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@ -6,16 +6,26 @@ use servicepoint::{CharGrid, Command, Connection, Cp437Grid, Origin};
#[derive(Parser, Debug)]
struct Cli {
#[arg(short, long, default_value = "localhost:2342")]
#[arg(
short,
long,
default_value = "localhost:2342",
help = "Address of the display"
)]
destination: String,
#[arg(short, long, num_args = 1.., value_delimiter = '\n')]
#[arg(short, long, num_args = 1.., value_delimiter = '\n',
help = "Text to send - specify multiple times for multiple lines")]
text: Vec<String>,
#[arg(short, long, default_value_t = true)]
#[arg(
short,
long,
default_value_t = true,
help = "Clear screen before sending text"
)]
clear: bool,
}
/// example: `cargo run -- --text "Hallo,
/// CCCB"`
/// example: `cargo run -- --text "Hallo" --text "CCCB"`
fn main() {
let mut cli = Cli::parse();
if cli.text.is_empty() {
@ -31,11 +41,7 @@ fn main() {
.expect("sending clear failed");
}
let text = cli.text.iter().fold(String::new(), move |str, line| {
let is_first = str.is_empty();
str + if is_first { "" } else { "\n" } + line
});
let text = cli.text.join("\n");
let grid = CharGrid::from(&*text);
let cp437_grid = Cp437Grid::from(&grid);