1 files changed, 54 insertions, 0 deletions
diff --git a/markdown_it/rules_inline/entity.py b/markdown_it/rules_inline/entity.py
new file mode 100644
index 0000000..883a966
--- /dev/null
+++ b/markdown_it/rules_inline/entity.py
@@ -0,0 +1,54 @@
+# Process html entity - &#123;, &#xAF;, &quot;, ...
+import re
+
+from ..common.entities import entities
+from ..common.utils import fromCodePoint, isValidEntityCode
+from .state_inline import StateInline
+
+DIGITAL_RE = re.compile(r"^&#((?:x[a-f0-9]{1,6}|[0-9]{1,7}));", re.IGNORECASE)
+NAMED_RE = re.compile(r"^&([a-z][a-z0-9]{1,31});", re.IGNORECASE)
+
+
+def entity(state: StateInline, silent: bool):
+
+    pos = state.pos
+    maximum = state.posMax
+
+    if state.srcCharCode[pos] != 0x26:  # /* & */
+        return False
+
+    if (pos + 1) < maximum:
+        ch = state.srcCharCode[pos + 1]
+
+        if ch == 0x23:  # /* # */
+            match = DIGITAL_RE.search(state.src[pos:])
+            if match:
+                if not silent:
+                    match1 = match.group(1)
+                    code = (
+                        int(match1[1:], 16)
+                        if match1[0].lower() == "x"
+                        else int(match1, 10)
+                    )
+                    state.pending += (
+                        fromCodePoint(code)
+                        if isValidEntityCode(code)
+                        else fromCodePoint(0xFFFD)
+                    )
+
+                state.pos += len(match.group(0))
+                return True
+
+        else:
+            match = NAMED_RE.search(state.src[pos:])
+            if match:
+                if match.group(1) in entities:
+                    if not silent:
+                        state.pending += entities[match.group(1)]
+                    state.pos += len(match.group(0))
+                    return True
+
+    if not silent:
+        state.pending += "&"
+    state.pos += 1
+    return True