1 files changed, 50 insertions, 0 deletions
diff --git a/vendor/minifier/src/json/json_minifier.rs b/vendor/minifier/src/json/json_minifier.rs
new file mode 100644
index 000000000..ad9fae2ce
--- /dev/null
+++ b/vendor/minifier/src/json/json_minifier.rs
@@ -0,0 +1,50 @@
+// Take a look at the license at the top of the repository in the LICENSE file.
+
+#[derive(Debug, Clone)]
+pub struct JsonMinifier {
+    pub is_string: bool,
+    pub escaped_quotation: u8,
+}
+
+impl Default for JsonMinifier {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl JsonMinifier {
+    pub fn new() -> Self {
+        JsonMinifier {
+            is_string: false,
+            escaped_quotation: 0,
+        }
+    }
+}
+
+#[inline]
+pub fn keep_element(minifier: &mut JsonMinifier, item1: &char, item2: Option<&char>) -> bool {
+    let remove_element =
+        item1.is_ascii_control() || is_whitespace_outside_string(minifier, item1, item2);
+    !remove_element
+}
+
+#[inline]
+fn is_whitespace_outside_string(
+    minifier: &mut JsonMinifier,
+    item1: &char,
+    item2: Option<&char>,
+) -> bool {
+    if !minifier.is_string && item1.eq(&'"') {
+        minifier.is_string = true;
+    } else if minifier.is_string {
+        if item1.eq(&'\\') && item2.eq(&Some(&'"')) {
+            minifier.escaped_quotation = 4;
+        }
+        if minifier.escaped_quotation > 0 {
+            minifier.escaped_quotation -= 1;
+        } else if item1.eq(&'"') {
+            minifier.is_string = false;
+        }
+    }
+    !minifier.is_string && item1.is_whitespace()
+}