Escape some newlines in question extraction

copienator/utils.py

@@ -142,7 +142,7 @@ import subprocess
 from .configuration import LATEX_AFTER, LATEX_BEFORE
 
 
-def compile_to_pdf(text, output_pdf_path):
+def compile_to_pdf(text, output_pdf_path, *, strict=False):
     """Wraps text in standalone header/footer templates and compiles it to PDF."""
     latex_template = f"{LATEX_BEFORE}{text}{LATEX_AFTER}"
 
@@ -166,6 +166,7 @@ def compile_to_pdf(text, output_pdf_path):
                 stdout=subprocess.PIPE,
                 stderr=subprocess.STDOUT,
                 text=True,
+                encoding="utf-8", errors="replace",
                 check=False
             )
             if "minted" in text:
@@ -175,6 +176,7 @@ def compile_to_pdf(text, output_pdf_path):
                     stdout=subprocess.PIPE,
                     stderr=subprocess.STDOUT,
                     text=True,
+                    encoding="utf-8", errors="replace",
                     check=False)
 
             generated_pdf = os.path.join(temp_dir, pdf_filename)
@@ -183,17 +185,21 @@ def compile_to_pdf(text, output_pdf_path):
                 shutil.move(generated_pdf, output_pdf_path)
 
             if result.returncode != 0:
-                error_lines = [
-                    line.strip() for line in result.stdout.splitlines()
-                    if line.lstrip().startswith("!")
-                ]
-                detail = f": {error_lines[0]}" if error_lines else ""
+                lines = result.stdout.splitlines()
+                first = next((i for i, line in enumerate(lines) if line.lstrip().startswith("!")), None)
+                detail = "\n" + "\n".join(lines[first:first + 5]) if first is not None else ""
                 pdf_status = "a PDF was generated" if pdf_generated else "no PDF was generated"
                 print(
                     f"Warning: LaTeX compilation reported errors for {output_pdf_path} "
                     f"(exit code {result.returncode}; {pdf_status}){detail}"
                 )
+                if strict:
+                    raise RuntimeError(f"LaTeX failed for {output_pdf_path}{detail}")
             elif not pdf_generated:
                 print(f"Warning: LaTeX compilation produced no PDF for {output_pdf_path}")
+                if strict:
+                    raise RuntimeError(f"No PDF generated for {output_pdf_path}")
         except Exception as e:
+            if strict:
+                raise
             print(f"Compilation error for {output_pdf_path}: {e}")