From c471187d11cf83b79d2ffbcce898786499485c44 Mon Sep 17 00:00:00 2001
From: Vik Paruchuri <vik.paruchuri@gmail.com>
Date: Fri, 3 Jan 2025 15:59:57 -0500
Subject: [PATCH] Fix error with delimiters

---
 marker/schema/blocks/equation.py | 15 ++++++++++++++-
 marker/settings.py               |  1 -
 pyproject.toml                   |  2 +-
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/marker/schema/blocks/equation.py b/marker/schema/blocks/equation.py
index 49affcfe..3881814b 100644
--- a/marker/schema/blocks/equation.py
+++ b/marker/schema/blocks/equation.py
@@ -11,7 +11,17 @@ class Equation(Block):
     def assemble_html(self, child_blocks, parent_structure=None):
         if self.latex:
             html_out = f"<p block-type='{self.block_type}'>"
-            for el in self.parse_latex(html.escape(self.latex)):
+
+            try:
+                latex = self.parse_latex(html.escape(self.latex))
+            except ValueError as e:
+                # If we have mismatched delimiters, we'll treat it as a single block
+                # Strip the $'s from the latex
+                latex = [
+                    {"class": "block", "content": self.latex.replace("$", "")}
+                ]
+
+            for el in latex:
                 if el["class"] == "block":
                     html_out += f'<math display="block">{el["content"]}</math>'
                 elif el["class"] == "inline":
@@ -26,6 +36,9 @@ def assemble_html(self, child_blocks, parent_structure=None):
 
     @staticmethod
     def parse_latex(text: str):
+        if text.count("$") % 2 != 0:
+            raise ValueError("Mismatched delimiters in LaTeX")
+
         DELIMITERS = [
             ("$$", "block"),
             ("$", "inline")
diff --git a/marker/settings.py b/marker/settings.py
index 41d54536..0a3a0ef7 100644
--- a/marker/settings.py
+++ b/marker/settings.py
@@ -23,7 +23,6 @@ class Settings(BaseSettings):
 
     # General models
     TORCH_DEVICE: Optional[str] = None  # Note: MPS device does not work for text detection, and will default to CPU
-    GOOGLE_API_KEY: Optional[str] = None
 
     @computed_field
     @property
diff --git a/pyproject.toml b/pyproject.toml
index 20b622e3..07f1682f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "marker-pdf"
-version = "1.2.2"
+version = "1.2.3"
 description = "Convert PDF to markdown with high speed and accuracy."
 authors = ["Vik Paruchuri <github@vikas.sh>"]
 readme = "README.md"