From c955f92af9b9b0186059fc0f5621093bf76eb9b7 Mon Sep 17 00:00:00 2001
From: Bakyt Niiazaliev <bakyt.worker@gmail.com>
Date: Sun, 6 Jul 2025 01:37:11 +0700
Subject: [PATCH] feat: add find_ascii_non_printable function to identify
 non-printable ASCII characters

---
 python/httpx/_httpx/__init__.pyi | 1 +
 src/urlparse.rs                  | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/python/httpx/_httpx/__init__.pyi b/python/httpx/_httpx/__init__.pyi
index ed9400d2..d5cb0d01 100644
--- a/python/httpx/_httpx/__init__.pyi
+++ b/python/httpx/_httpx/__init__.pyi
@@ -174,3 +174,4 @@ def quote(string: str, safe: str) -> str:
     """
 
 def unquote(value: str) -> str: ...
+def find_ascii_non_printable(s: str) -> typing.Optional[int]: ...
diff --git a/src/urlparse.rs b/src/urlparse.rs
index 4e6181c3..96720870 100644
--- a/src/urlparse.rs
+++ b/src/urlparse.rs
@@ -71,6 +71,12 @@ pub fn quote(string: &str, safe: &str) -> String {
     result
 }
 
+#[pyfunction]
+pub fn find_ascii_non_printable(s: &str) -> Option<usize> {
+    s.chars()
+        .position(|c| c.is_ascii() && !c.is_ascii_graphic() && c != ' ')
+}
+
 pub(crate) trait PercentEncoded {
     fn percent_encoded(&self, safe: &str) -> String;
 }