fix typos and remove unused variables across codebase

src/pyxpdf/globalconfig.pxi

@@ -4,7 +4,7 @@ from pyxpdf.includes.UnicodeMap cimport UnicodeMap
 # NOTE: This class should be always a singleton
 # only one object of this class should exist i.e 
 # global variable `Config`
-# This is beacuse xpdf `GlobalParams` class's destructor
+# This is because xpdf `GlobalParams` class's destructor
 # frees global builtin font tables. So more that one
 # `_GlobalParamsConfig` class will lead to double free
 # or corruption error.
@@ -15,7 +15,7 @@ cdef class _GlobalParamsConfig:
         public object __doc__
 
     cdef _set_defaults(self):
-        # only call after initialising self._global
+        # only call after initializing self._global
         # default text encoding 
         self._global.setTextEncoding("UTF-8")
 
@@ -159,16 +159,11 @@ cdef class _GlobalParamsConfig:
 
     @text_eol.setter
     def text_eol(self, eol):
-        cdef EndOfLineKind c_eol
-        if eol == "unix":
-            c_eol = EndOfLineKind.eolUnix
-        elif eol == "dos":
-            c_eol = EndOfLineKind.eolDOS
-        elif eol == 'mac':
-            c_eol = EndOfLineKind.eolMac
+        # cdef EndOfLineKind c_eol
+        if eol.lower() in (u'unix', u'mac', u'dos'):
+            self._global.setTextEOL(_chars(eol))
         else:
             raise XPDFConfigError(f"Invalid EOL type - {eol}.")
-        self._global.setTextEOL(_chars(eol))
 
 
     @property

src/pyxpdf/imageoutput.pxi

@@ -39,7 +39,7 @@ DEF BITMAP_RESOLUTION = 150
 #FIXME: buggy as hell, text does not render properly.
 cdef bytearray splash_bitmap_to_1bpc_1comp(SplashBitmap *bitmap):
     cdef:
-        int idx, x, y, i
+        int idx, y, i
         int height = bitmap.getHeight()
         int width = bitmap.getWidth()
         SplashBitmapRowSize row_size = bitmap.getRowSize()
@@ -49,7 +49,7 @@ cdef bytearray splash_bitmap_to_1bpc_1comp(SplashBitmap *bitmap):
 
     for y in range(height):
         i = 0
-        for x in range(0, width, 8):
+        for _ in range(0, width, 8):
             p = &data[y * row_size + i]
             idx = y * row_size + i
             img[idx] = p[0]
@@ -376,13 +376,11 @@ cdef class RawImageOutput(PDFOutputDevice):
                                                    double scale_y) except NULL:
         cdef:
             int rotation = 0
-            int total_pages = self.doc.doc.getNumPages()
             double page_h = 0
             double page_w = 0
             double tmp
             double res_x = self.resolution_x
             double res_y = self.resolution_y
-            SplashBitmap* bitmap
 
         if self.use_cropbox:
             page_h = self.doc.doc.getPageCropHeight(page_no + 1)
@@ -604,6 +602,8 @@ cdef class PDFImage:
             mode = "L"
         elif c_img.bitmapColorMode == SplashColorMode.splashModeRGB8:
             mode = "RGB"
+        else:
+            raise XPDFInternalError(f"Unsupported Bitmap SplashColorMode.")
         buff = splash_bitmap_to_buffer(bmap, mode)
         img.image = pillow_image_from_buffer(mode, bmap.getHeight(), bmap.getWidth(), buff)
 

src/pyxpdf/xpdf.pyx

@@ -101,6 +101,6 @@ include "textoutput.pxi"
 # Python Objects based on SplashOutputDev.pxd
 include "imageoutput.pxi"
 
-# Pythonn Objects based on PDFDoc.pxd ,Page.pxd
+# Python Objects based on PDFDoc.pxd ,Page.pxd
 include "document.pxi"