Fix typos

Author: urban-adeininger

NEWS

@@ -142,7 +142,7 @@ dvisvgm-3.0 (2022-10-16)
   newly implemented library for embedding TTF/WOFF data into the SVG files
 - added option --embed-bitmaps to embed bitmaps into the generated SVG files
   instead of referencing the external files
-- exteded option --tmpdir to optionally suppress the creation of uniquely
+- extended option --tmpdir to optionally suppress the creation of uniquely
   named subfolders
 - added filters :even and :odd to option --page to limit the given page ranges
   to even and odd page numbers respectively
@@ -286,7 +286,7 @@ dvisvgm-2.8 (2019-10-25)
 - added support for Ghostscript 9.50
 - added support for elliptical arc segments in graphics paths
 - added support for CMap operator 'begincidchar' (patch by Akira Kakuto)
-- added suport for experimental 128-bit XXH3 hashes
+- added support for experimental 128-bit XXH3 hashes
 - extended optimizer module 'simplify-transform' to incorporate translation and
   scaling components into positional and size attributes
 - replaced CRC32 checksums used in cache files with XXH32 hashes
@@ -421,7 +421,7 @@ dvisvgm-2.3.5 (2018-03-23)
 - fixed warning printed when using Ghostscript 9.23
 
 dvisvgm-2.3.4 (2018-03-14)
-- fixed error message printed when addding a single '-' on the command-line
+- fixed error message printed when adding a single '-' on the command-line
 - added missing data file that lead to failing tests (GH bug #87)
 - updated brotli library to version 1.0.3
 - some code refactorings

doc/dvisvgm.txt.in

@@ -628,7 +628,7 @@ If this option is given, dvisvgm does not expect a DVI but a PDF input file, and
 it to SVG. Similar to the conversion of DVI files, only the first page is processed by default.
 Option *--page* can be used to select different pages, page ranges, and/or page sequences.
 +
-If a Ghostcript version < 10.01.0 is found, dvisvgm uses Ghostscript to process the PDF file. In
+If a Ghostscript version < 10.01.0 is found, dvisvgm uses Ghostscript to process the PDF file. In
 this case, the conversion is realized by creating a single 'pdffile' special command which is
 forwarded to dvisvgm's PostScript special handler. Therefore, this option is only available if
 dvisvgm was built with PostScript support enabled, and requires Ghostscript to be accessible.
@@ -882,7 +882,7 @@ Character sequence *{?nl}* expands to a newline character. Finally, construction
 enable the evaluation of mathematical expressions which may consist of basic arithmetic operations including
 modulo. As above, the variables 'x' and 'y' represent the current coordinates.
 Invalid operations, like divisions by zero, lead to an error message on the console.
-Example: +{?(-10*(x+2y)-5)}+ is a valid expresssion and expands to the corresponding numeric string.
+Example: +{?(-10*(x+2y)-5)}+ is a valid expression and expands to the corresponding numeric string.
 
 *dvisvgm:rawdef* 'text':::
 This command is similar to *dvisvgm:raw*, but puts the XML nodes into the <defs> section of the SVG document
@@ -1028,7 +1028,7 @@ https://ctan.org/pkg/pdftex[pdfTeX user manual].
 The famous DVI driver https://www.tug.org/texinfohtml/dvips.html['dvips'] introduced its own set of specials
 in order to embed PostScript code into DVI files, which greatly improves the capabilities of DVI documents.
 One aim of dvisvgm is to completely evaluate all PostScript fragments and to convert as many of them as possible
-to SVG. In contrast to dvips, dvisvgm uses floating point arithmetics to compute the precise position of each
+to SVG. In contrast to dvips, dvisvgm uses floating point arithmetic to compute the precise position of each
 graphic element, i.e. it doesn't round the coordinates. Therefore, the relative locations of the graphic elements
 may slightly differ from those computed by dvips.
 +

src/BgColorSpecialHandler.cpp

@@ -47,7 +47,7 @@ bool BgColorSpecialHandler::process (const string&, istream&, SpecialActions&) {
 
 
 void BgColorSpecialHandler::dviBeginPage (unsigned pageno, SpecialActions &actions) {
-	// Ensure that the background color of the preceeding page is set as the
+	// Ensure that the background color of the preceding page is set as the
 	// default background color of the current page because this special affects
 	// the current and all subsequent pages until the next change.
 	// See the documentation of the color package, section 3.5.

src/DVIToSVG.cpp

@@ -401,7 +401,7 @@ static vector<string> extract_prefixes (const char *ignorelist) {
  *  the corresponding prefixes can be given separated by non alpha-numeric characters,
  *  e.g. "color, ps, em" or "color: ps em" etc.
  *  A single "*" in the ignore list disables all specials.
- *  @param[in] ignorelist list of hanlder names to ignore
+ *  @param[in] ignorelist list of handler names to ignore
  *  @param[in] pswarning if true, shows warning about disabled PS support
  *  @return the SpecialManager that handles special statements */
 void DVIToSVG::setProcessSpecials (const char *ignorelist, bool pswarning) {

src/Doxyfile

@@ -1121,7 +1121,7 @@ HTML_STYLESHEET        =
 # defined cascading style sheet that is included after the standard style sheets
 # created by doxygen. Using this option one can overrule certain style aspects.
 # This is preferred over using HTML_STYLESHEET since it does not replace the
-# standard style sheet and is therefor more robust against future updates.
+# standard style sheet and is therefore more robust against future updates.
 # Doxygen will copy the style sheet file to the output directory. For an example
 # see the documentation.
 # This tag requires that the tag GENERATE_HTML is set to YES.
@@ -2005,7 +2005,7 @@ PREDEFINED             =
 EXPAND_AS_DEFINED      = 
 
 # If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
-# remove all refrences to function-like macros that are alone on a line, have an
+# remove all references to function-like macros that are alone on a line, have an
 # all uppercase name, and do not end with a semicolon. Such function macros are
 # typically used for boiler-plate code, and will confuse the parser if not
 # removed.

src/Font.cpp

@@ -43,7 +43,7 @@ uint32_t Font::unicode (uint32_t c) const {
 }
 
 
-/** Returns the encoding object of this font which is asigned in a map file.
+/** Returns the encoding object of this font which is assigned in a map file.
  *  If there's no encoding assigned, the function returns 0. */
 const FontEncoding* Font::encoding () const {
 	if (const FontMap::Entry *entry = fontMapEntry())
@@ -200,7 +200,7 @@ bool PhysicalFont::isCIDFont () const {
 }
 
 
-/** Retrieve the IDs of all charachter maps available in the font file.
+/** Retrieve the IDs of all character maps available in the font file.
  *  @param[out] charMapIDs IDs of the found character maps
  *  @return number of found character maps */
 int PhysicalFont::collectCharMapIDs (std::vector<CharMapID> &charMapIDs) const {

src/Font.hpp

@@ -192,7 +192,7 @@ class TFMFont : public virtual Font {
 	private:
 		mutable std::unique_ptr<FontMetrics> _metrics;
 		std::string _fontname;
-		uint32_t _checksum; ///< cheksum to be compared with TFM checksum
+		uint32_t _checksum; ///< checksum to be compared with TFM checksum
 		double _dsize;    ///< design size in PS point units
 		double _ssize;    ///< scaled size in PS point units
 };

src/FontStyle.hpp

@@ -25,7 +25,7 @@ struct FontStyle {
 	FontStyle () =default;
 	FontStyle (float b, float e, float s) : bold(b), extend(e), slant(s) {}
 	double bold=0;   ///< stroke width in pt used to draw the glyph outlines
-	double extend=1; ///< factor to strech/shrink the glyphs horizontally
+	double extend=1; ///< factor to stretch/shrink the glyphs horizontally
 	double slant=0;  ///< horizontal slanting/skewing value (= tan(phi))
 };
 

src/InputReader.cpp

@@ -371,7 +371,7 @@ string InputReader::getLine () {
 
 /** Parses a sequence of key-value pairs of the form KEY=VALUE or KEY="VALUE".
  *  If parameter 'requireValues' is false, attributes may also consist of a key only.
- *  @param[out] attr the scanned atributes
+ *  @param[out] attr the scanned attributes
  *  @param[in] requireValues true if all attributes require a value
  *  @param[in] quotechars recognized quote characters used to enclose the attribute values
  *  @return number of attributes scanned */

src/PDFParser.cpp

@@ -308,7 +308,7 @@ static PDFObjectRef parse_object_ref (vector<PDFObject> &objects) {
 }
 
 
-/** Replaces all occurences of "#XX" (XX are two hex digits) with the corresponding character. */
+/** Replaces all occurrences of "#XX" (XX are two hex digits) with the corresponding character. */
 static string& subst_numeric_chars (string &str) {
 	for (auto pos=str.find('#'); pos != string::npos; pos=str.find('#', pos+1)) {
 		if (pos > str.length()-3)