Some comments

scripts/gen_i18n.py

@@ -289,7 +289,7 @@ def find_used_string_keys(
                         escaped = False
                         continue
                     if quote_char is None:
-                        if ch == '"' or ch == "'":
+                        if ch in ['"', "'"]:
                             quote_char = ch
                             continue
                         if ch == "/" and idx + 1 < len(line) and line[idx + 1] == "/":
@@ -413,11 +413,7 @@ def format_cpp_string_literal(segments: List[str], indent: str = "    ") -> List
                     last_space = idx
 
                 # Handle escapes to step correctly
-                if current[idx] == "\\":
-                    idx += 2
-                else:
-                    idx += 1
-
+                idx += 2 if current[idx] == "\\" else 1
             # If we found a space, split after it
             if last_space != -1:
                 # Include the space in the first line
@@ -479,17 +475,19 @@ def generate_keys_header(
     ]
 
     for code in languages:
-        lines.append(f"extern const char STRINGS_{code}_DATA[];")
-        lines.append(f"extern const uint16_t OFFSETS_{code}[];")
-
+        lines.extend(
+            (
+                f"extern const char STRINGS_{code}_DATA[];",
+                f"extern const uint16_t OFFSETS_{code}[];",
+            )
+        )
     lines.append("}  // namespace i18n_strings")
     lines.append("")
 
     # Language enum
     lines.append("// Language enum")
     lines.append("enum class Language : uint8_t {")
-    for i, lang in enumerate(languages):
-        lines.append(f"  {lang} = {i},")
+    lines.extend(f"  {lang} = {i}," for i, lang in enumerate(languages))
     lines.append("  _COUNT")
     lines.append("};")
     lines.append("")
@@ -529,9 +527,11 @@ def generate_keys_header(
     lines.append("inline LangStrings getLanguageStrings(Language lang) {")
     lines.append("  switch (lang) {")
     for code in languages:
-        lines.append(f"    case Language::{code}:")
-        lines.append(
-            f"      return {{i18n_strings::STRINGS_{code}_DATA, i18n_strings::OFFSETS_{code}}};"
+        lines.extend(
+            (
+                f"    case Language::{code}:",
+                f"      return {{i18n_strings::STRINGS_{code}_DATA, i18n_strings::OFFSETS_{code}}};",
+            )
         )
     first_code = languages[0]
     lines.append("    default:")
@@ -559,8 +559,10 @@ def generate_keys_header(
     )
     sorted_indices = [english_idx] + rest
     lines.append("// Sorted language indices by code (auto-generated by gen_i18n.py)")
-    for rank, idx in enumerate(sorted_indices):
-        lines.append(f"//   {rank:>2}: {languages[idx]:<4} {language_names[idx]}")
+    lines.extend(
+        f"//   {rank:>2}: {languages[idx]:<4} {language_names[idx]}"
+        for rank, idx in enumerate(sorted_indices)
+    )
     lines.append(
         "constexpr uint8_t SORTED_LANGUAGE_INDICES[] = {"
         f"{', '.join(str(i) for i in sorted_indices)}"
@@ -594,11 +596,13 @@ def generate_strings_header(
     ]
 
     for code in languages:
-        lines.append(f"extern const char STRINGS_{code}_DATA[];")
-        lines.append(f"extern const uint16_t OFFSETS_{code}[];")
-
-    lines.append("")
-    lines.append("}  // namespace i18n_strings")
+        lines.extend(
+            (
+                f"extern const char STRINGS_{code}_DATA[];",
+                f"extern const uint16_t OFFSETS_{code}[];",
+            )
+        )
+    lines.extend(("", "}  // namespace i18n_strings"))
     _write_file(output_path, lines, verbose)
 
 
@@ -618,11 +622,10 @@ def generate_strings_cpp(
         "",
         "#include <cstddef>",
         "",
+        "// Language codes",
+        "const char* const LANGUAGE_CODES[] = {",
     ]
 
-    # LANGUAGE_NAMES array
-    lines.append("// Language codes")
-    lines.append("const char* const LANGUAGE_CODES[] = {")
     for code in languages:
         _append_string_entry(lines, code)
     lines.append("};")
@@ -686,13 +689,13 @@ def generate_strings_cpp(
     # Compile-time size checks
     lines.append("// Compile-time validation of array sizes")
     for code in languages:
-        lines.append(
-            f"static_assert(sizeof(i18n_strings::OFFSETS_{code}) "
-            f"/ sizeof(i18n_strings::OFFSETS_{code}[0]) =="
+        lines.extend(
+            (
+                f"static_assert(sizeof(i18n_strings::OFFSETS_{code}) / sizeof(i18n_strings::OFFSETS_{code}[0]) ==",
+                "                  static_cast<size_t>(StrId::_COUNT),",
+                f'              "OFFSETS_{code} size mismatch");',
+            )
         )
-        lines.append("                  static_cast<size_t>(StrId::_COUNT),")
-        lines.append(f'              "OFFSETS_{code} size mismatch");')
-
     _write_file(output_path, lines, verbose)
 
 

scripts/generate_test_epub.py

@@ -27,17 +27,17 @@ def get_font(size=20):
     import sys
 
     candidates = []
-    if sys.platform == "win32":
+    if sys.platform == "darwin":
+        candidates = [
+            "/System/Library/Fonts/Helvetica.ttc",
+            "/Library/Fonts/Arial.ttf",
+        ]
+    elif sys.platform == "win32":
         windir = os.environ.get("WINDIR", "C:\\Windows")
         candidates = [
             os.path.join(windir, "Fonts", "arial.ttf"),
             os.path.join(windir, "Fonts", "calibri.ttf"),
         ]
-    elif sys.platform == "darwin":
-        candidates = [
-            "/System/Library/Fonts/Helvetica.ttc",
-            "/Library/Fonts/Arial.ttf",
-        ]
     else:
         candidates = [
             "/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf",