From b00c498b1f3d889b15465ed6336f4dc6a7f784e9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Linus=20F=C3=A4rnstrand?= <linus@mullvad.net>
Date: Fri, 27 Sep 2024 14:35:44 +0200
Subject: [PATCH] Add --print-unicode-blocks and --verbose

Allows the user to discover all supported unicode blocks
---
 src/main.rs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/src/main.rs b/src/main.rs
index 5d98787..89bf231 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -111,6 +111,15 @@ impl RuleDispatcher {
 struct Args {
     /// One or more files or directories to scan. Directories are scanned recursively.
     paths: Vec<PathBuf>,
+
+    /// Print the names of all the Unicode blocks that this tool recognizes, then exits.
+    /// Enable verbose output to also print the code point ranges for each block.
+    #[arg(long)]
+    print_unicode_blocks: bool,
+
+    /// Enable more verbose output.
+    #[arg(short, long)]
+    verbose: bool,
 }
 
 fn main() -> anyhow::Result<()> {
@@ -118,6 +127,19 @@ fn main() -> anyhow::Result<()> {
 
     let args = Args::parse();
 
+    if args.print_unicode_blocks {
+        for (&name, range) in &unicode_blocks::UNICODE_BLOCKS {
+            print!("{name}");
+            if args.verbose {
+                let range_start = u32::from(*range.start());
+                let range_end = u32::from(*range.end());
+                print!(": U+{range_start}..U+{range_end}");
+            }
+            println!();
+        }
+        return Ok(());
+    }
+
     let default_config = get_default_config();
     let mut dispatcher = RuleDispatcher {
         user_config: None,