1 files changed, 91 insertions, 0 deletions
diff --git a/vendor/iri-string/src/parser/validate/path.rs b/vendor/iri-string/src/parser/validate/path.rs
new file mode 100644
index 00000000..1b09c84b
--- /dev/null
+++ b/vendor/iri-string/src/parser/validate/path.rs
@@ -0,0 +1,91 @@
+//! Parsers for path.
+
+use crate::parser::char;
+use crate::parser::str::{find_split2_hole, satisfy_chars_with_pct_encoded};
+use crate::spec::Spec;
+use crate::validate::Error;
+
+/// Returns `Ok(_)` if the string matches `path-abempty` or `ipath-abempty`.
+pub(super) fn validate_path_abempty<S: Spec>(i: &str) -> Result<(), Error> {
+    if i.is_empty() {
+        return Ok(());
+    }
+    let i = match i.strip_prefix('/') {
+        Some(rest) => rest,
+        None => return Err(Error::new()),
+    };
+    let is_valid = satisfy_chars_with_pct_encoded(
+        i,
+        char::is_ascii_pchar_slash,
+        S::is_nonascii_char_unreserved,
+    );
+    if is_valid {
+        Ok(())
+    } else {
+        Err(Error::new())
+    }
+}
+
+/// Returns `Ok(_)` if the string matches `hier-part` or `ihier-part` modulo
+/// `"//" authority path-abempty`.
+pub(super) fn validate_path_absolute_authority_absent<S: Spec>(i: &str) -> Result<(), Error> {
+    if i.is_empty() {
+        // `path-empty`.
+        return Ok(());
+    }
+    if i.starts_with("//") {
+        unreachable!("this case should be handled by the caller");
+    }
+    let is_valid = satisfy_chars_with_pct_encoded(
+        i,
+        char::is_ascii_pchar_slash,
+        S::is_nonascii_char_unreserved,
+    );
+    if is_valid {
+        Ok(())
+    } else {
+        Err(Error::new())
+    }
+}
+
+/// Returns `Ok(_)` if the string matches `relative-part` or `irelative-part` modulo
+/// `"//" authority path-abempty`.
+pub(super) fn validate_path_relative_authority_absent<S: Spec>(i: &str) -> Result<(), Error> {
+    if i.starts_with("//") {
+        unreachable!("this case should be handled by the caller");
+    }
+    let is_valid = match find_split2_hole(i, b'/', b':') {
+        Some((_, b'/', _)) | None => satisfy_chars_with_pct_encoded(
+            i,
+            char::is_ascii_pchar_slash,
+            S::is_nonascii_char_unreserved,
+        ),
+        Some((_, c, _)) => {
+            debug_assert_eq!(c, b':');
+            // `foo:bar`-style. This does not match `path-noscheme`.
+            return Err(Error::new());
+        }
+    };
+    if is_valid {
+        Ok(())
+    } else {
+        Err(Error::new())
+    }
+}
+
+/// Returns `Ok(_)` if the string matches `path`/`ipath` rules.
+pub(crate) fn validate_path<S: Spec>(i: &str) -> Result<(), Error> {
+    if i.starts_with("//") {
+        return Err(Error::new());
+    }
+    let is_valid = satisfy_chars_with_pct_encoded(
+        i,
+        char::is_ascii_pchar_slash,
+        S::is_nonascii_char_unreserved,
+    );
+    if is_valid {
+        Ok(())
+    } else {
+        Err(Error::new())
+    }
+}