1 files changed, 57 insertions, 0 deletions
diff --git a/examples/read_conf.rs b/examples/read_conf.rs
new file mode 100644
index 0000000..c2d4044
--- /dev/null
+++ b/examples/read_conf.rs
@@ -0,0 +1,57 @@
+use pom_parser::Configuration;
+use std::process::ExitCode;
+
+fn try_main() -> Result<(), Box<dyn std::error::Error>> {
+	// Try editing examples/conf.pom and see how the output changes!
+	let conf = Configuration::load_path("examples/conf.pom")?;
+	// get looks up a key in a configuration file.
+	// it returns Some(value) if the key is set to value,
+	// and None otherwise.
+	println!(
+		"indenting with {}",
+		conf.get("indentation-type")
+			.ok_or("you must pick an indentation-type!")?
+	);
+	// get_int_or_default parses a key as an integer.
+	// It returns an Err if the key is set to something that’s not a valid integer.
+	println!("tab width is {}", conf.get_int_or_default("tab-size", 8)?);
+	// get_bool_or_default parses a key as a boolean.
+	// no, off, false all count as false, and yes, on, true count as true.
+	println!(
+		"show line numbers: {}",
+		conf.get_bool_or_default("show-line-numbers", false)?
+	);
+	// lists are comma-separated. they can use \, to escape literal commas.
+	println!("C++ extensions: {:?}", conf.get_list("file-extensions.Cpp"));
+
+	println!("===plug-ins===");
+	// extract out a section of a configuration
+	let plug_ins = conf.section("plug-in");
+	for plug_in in plug_ins.keys() {
+		// extract out just this plug-in's section
+		let plug_in_cfg = plug_ins.section(plug_in);
+		println!(
+			"{plug_in} is {}",
+			if plug_in_cfg.get_bool_or_default("enabled", true)? {
+				"enabled"
+			} else {
+				"disabled"
+			}
+		);
+		println!(
+			"{plug_in} plug-in path: {:?}",
+			plug_in_cfg
+				.get("path")
+				.ok_or_else(|| format!("no path set for plug-in {plug_in}!"))?
+		);
+	}
+	Ok(())
+}
+
+fn main() -> ExitCode {
+	if let Err(e) = try_main() {
+		eprintln!("Error: {e}");
+		return ExitCode::FAILURE;
+	}
+	ExitCode::SUCCESS
+}