Add copyright header

build/rust_build.rs

@@ -1,75 +1,18 @@
+// Copyright (C) 2009 The Libphonenumber Authors
+// Copyright (C) 2025 The Kashin Vladislav (Rust adaptation author)
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
 
-/** TODO: uncomment, move to macros and refactor
-/**
- * This file represents content of https://github.com/google/libphonenumber/tree/master/tools/cpp
- */
-
-
-use thiserror::Error;
-
-#[derive(Debug, Error)]
-enum BuildError {
-    #[error("IO error occurred: {0}")]
-    IO(#[from] std::io::Error),
-
-    #[error("Line {line_num} is too long (max is {max_len} bytes)")]
-    LineTooLong { line_num: usize, max_len: usize },
-
-    #[error("Failed to parse prefix '{prefix}': {source}")]
-    PrefixParseError {
-        prefix: String,
-        #[source]
-        source: ParseIntError,
-    },
-}
-
-fn parse_prefixes(path: &str, prefixes: &mut BTreeMap<i32, String>) -> Result<(), BuildError> {
-    prefixes.clear();
-
-    let input = File::open(path)?; 
-    const MAX_LINE_LENGTH: usize = 2 * 1024;
-    
-    let mut reader = BufReader::new(input);
-    let mut line_buffer = String::with_capacity(MAX_LINE_LENGTH);
-    let mut line_number = 0;
-
-    loop {
-        line_number += 1;
-        line_buffer.clear();
-
-        let bytes_read = reader.read_line(&mut line_buffer)?;
-        if bytes_read == 0 {
-            break;
-        }
-
-        if !line_buffer.ends_with('\n') {
-             return Err(BuildError::LineTooLong {
-                line_num: line_number,
-                max_len: MAX_LINE_LENGTH,
-            });
-        }
-        
-        let line = line_buffer.trim();
-        if line.is_empty() || line.starts_with('#') {
-            continue;
-        }
-
-        if let Some((prefix_str, desc)) = line.split_once('|') {
-            if prefix_str.is_empty() {
-                continue;
-            }
-            let prefix_code = prefix_str.parse().map_err(|e| BuildError::PrefixParseError {
-                prefix: prefix_str.to_string(),
-                source: e,
-            })?;
-            prefixes.insert(prefix_code, desc.to_string());
-        }
-    }
-
-    Ok(())
-}
-
-*/
 
 fn main() {
     protobuf_codegen::Codegen::new()