1 files changed, 100 insertions, 0 deletions
diff --git a/vendor/minifier/src/json/string.rs b/vendor/minifier/src/json/string.rs
new file mode 100644
index 000000000..071bf0012
--- /dev/null
+++ b/vendor/minifier/src/json/string.rs
@@ -0,0 +1,100 @@
+// Take a look at the license at the top of the repository in the LICENSE file.
+
+use crate::json::json_minifier::JsonMinifier;
+
+use std::fmt;
+use std::str::Chars;
+
+#[derive(Clone)]
+pub struct JsonMultiFilter<'a, P: Clone> {
+    minifier: JsonMinifier,
+    iter: Chars<'a>,
+    predicate: P,
+    initialized: bool,
+    item1: Option<<Chars<'a> as Iterator>::Item>,
+}
+
+impl<'a, P: Clone> JsonMultiFilter<'a, P> {
+    #[inline]
+    pub fn new(iter: Chars<'a>, predicate: P) -> Self {
+        JsonMultiFilter {
+            minifier: JsonMinifier::default(),
+            iter,
+            predicate,
+            initialized: false,
+            item1: None,
+        }
+    }
+}
+
+impl<'a, P: Clone> fmt::Debug for JsonMultiFilter<'a, P> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_struct("Filter")
+            .field("minifier", &self.minifier)
+            .field("iter", &self.iter)
+            .field("initialized", &self.initialized)
+            .finish()
+    }
+}
+
+impl<'a, P: Clone> Iterator for JsonMultiFilter<'a, P>
+where
+    P: FnMut(
+        &mut JsonMinifier,
+        &<Chars<'a> as Iterator>::Item,
+        Option<&<Chars<'a> as Iterator>::Item>,
+    ) -> bool,
+{
+    type Item = <Chars<'a> as Iterator>::Item;
+
+    #[inline]
+    fn next(&mut self) -> Option<<Chars<'a> as Iterator>::Item> {
+        if !self.initialized {
+            self.item1 = self.iter.next();
+            self.initialized = true;
+        }
+
+        while let Some(item) = self.item1.take() {
+            self.item1 = self.iter.next();
+            if (self.predicate)(&mut self.minifier, &item, self.item1.as_ref()) {
+                return Some(item);
+            }
+        }
+        None
+    }
+}
+
+impl<'a, P> JsonMultiFilter<'a, P>
+where
+    P: FnMut(
+            &mut JsonMinifier,
+            &<Chars<'a> as Iterator>::Item,
+            Option<&<Chars<'a> as Iterator>::Item>,
+        ) -> bool
+        + Clone,
+{
+    pub(super) fn write<W: std::io::Write>(self, mut w: W) -> std::io::Result<()> {
+        for token in self {
+            write!(w, "{}", token)?;
+        }
+        Ok(())
+    }
+}
+
+impl<'a, P> fmt::Display for JsonMultiFilter<'a, P>
+where
+    P: FnMut(
+            &mut JsonMinifier,
+            &<Chars<'a> as Iterator>::Item,
+            Option<&<Chars<'a> as Iterator>::Item>,
+        ) -> bool
+        + Clone,
+{
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let s = (*self).clone();
+        for token in s {
+            write!(f, "{}", token)?;
+        }
+        Ok(())
+    }
+}