summaryrefslogtreecommitdiff
path: root/vendor/urlencoding/src/enc.rs
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/urlencoding/src/enc.rs')
-rw-r--r--vendor/urlencoding/src/enc.rs139
1 files changed, 0 insertions, 139 deletions
diff --git a/vendor/urlencoding/src/enc.rs b/vendor/urlencoding/src/enc.rs
deleted file mode 100644
index b345c74c..00000000
--- a/vendor/urlencoding/src/enc.rs
+++ /dev/null
@@ -1,139 +0,0 @@
-use std::borrow::Cow;
-use std::fmt;
-use std::io;
-use std::str;
-
-/// Wrapper type that implements `Display`. Encodes on the fly, without allocating.
-/// Percent-encodes every byte except alphanumerics and `-`, `_`, `.`, `~`. Assumes UTF-8 encoding.
-///
-/// ```rust
-/// use urlencoding::Encoded;
-/// format!("{}", Encoded("hello!"));
-/// ```
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, Ord, PartialOrd)]
-#[repr(transparent)]
-pub struct Encoded<Str>(pub Str);
-
-impl<Str: AsRef<[u8]>> Encoded<Str> {
- /// Long way of writing `Encoded(data)`
- ///
- /// Takes any string-like type or a slice of bytes, either owned or borrowed.
- #[inline(always)]
- pub fn new(string: Str) -> Self {
- Self(string)
- }
-
- #[inline(always)]
- pub fn to_str(&self) -> Cow<str> {
- encode_binary(self.0.as_ref())
- }
-
- /// Perform urlencoding to a string
- #[inline]
- #[allow(clippy::inherent_to_string_shadow_display)]
- pub fn to_string(&self) -> String {
- self.to_str().into_owned()
- }
-
- /// Perform urlencoding into a writer
- #[inline]
- pub fn write<W: io::Write>(&self, writer: &mut W) -> io::Result<()> {
- encode_into(self.0.as_ref(), false, |s| writer.write_all(s.as_bytes()))?;
- Ok(())
- }
-
- /// Perform urlencoding into a string
- #[inline]
- pub fn append_to(&self, string: &mut String) {
- append_string(self.0.as_ref(), string, false);
- }
-}
-
-impl<'a> Encoded<&'a str> {
- /// Same as new, but hints a more specific type, so you can avoid errors about `AsRef<[u8]>` not implemented
- /// on references-to-references.
- #[inline(always)]
- pub fn str(string: &'a str) -> Self {
- Self(string)
- }
-}
-
-impl<String: AsRef<[u8]>> fmt::Display for Encoded<String> {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- encode_into(self.0.as_ref(), false, |s| f.write_str(s))?;
- Ok(())
- }
-}
-
-/// Percent-encodes every byte except alphanumerics and `-`, `_`, `.`, `~`. Assumes UTF-8 encoding.
-///
-/// Call `.into_owned()` if you need a `String`
-#[inline(always)]
-pub fn encode(data: &str) -> Cow<str> {
- encode_binary(data.as_bytes())
-}
-
-/// Percent-encodes every byte except alphanumerics and `-`, `_`, `.`, `~`.
-#[inline]
-pub fn encode_binary(data: &[u8]) -> Cow<str> {
- // add maybe extra capacity, but try not to exceed allocator's bucket size
- let mut escaped = String::with_capacity(data.len() | 15);
- let unmodified = append_string(data, &mut escaped, true);
- if unmodified {
- return Cow::Borrowed(unsafe {
- // encode_into has checked it's ASCII
- str::from_utf8_unchecked(data)
- });
- }
- Cow::Owned(escaped)
-}
-
-fn append_string(data: &[u8], escaped: &mut String, may_skip: bool) -> bool {
- encode_into(data, may_skip, |s| {
- escaped.push_str(s);
- Ok::<_, std::convert::Infallible>(())
- }).unwrap()
-}
-
-fn encode_into<E>(mut data: &[u8], may_skip_write: bool, mut push_str: impl FnMut(&str) -> Result<(), E>) -> Result<bool, E> {
- let mut pushed = false;
- loop {
- // Fast path to skip over safe chars at the beginning of the remaining string
- let ascii_len = data.iter()
- .take_while(|&&c| matches!(c, b'0'..=b'9' | b'A'..=b'Z' | b'a'..=b'z' | b'-' | b'.' | b'_' | b'~')).count();
-
- let (safe, rest) = if ascii_len >= data.len() {
- if !pushed && may_skip_write {
- return Ok(true);
- }
- (data, &[][..]) // redundatnt to optimize out a panic in split_at
- } else {
- data.split_at(ascii_len)
- };
- pushed = true;
- if !safe.is_empty() {
- push_str(unsafe { str::from_utf8_unchecked(safe) })?;
- }
- if rest.is_empty() {
- break;
- }
-
- match rest.split_first() {
- Some((byte, rest)) => {
- let enc = &[b'%', to_hex_digit(byte >> 4), to_hex_digit(byte & 15)];
- push_str(unsafe { str::from_utf8_unchecked(enc) })?;
- data = rest;
- }
- None => break,
- };
- }
- Ok(false)
-}
-
-#[inline]
-fn to_hex_digit(digit: u8) -> u8 {
- match digit {
- 0..=9 => b'0' + digit,
- 10..=255 => b'A' - 10 + digit,
- }
-}