Fix misc. typos in documentation and source comments

Found via `codespell`

Author: luzpaz

cgal/export_nef.cpp

@@ -17,7 +17,7 @@
 #pragma pop_macro("NDEBUG")
 
 using namespace CGALUtils;
-namespace fs=boost::fileystem;
+namespace fs=boost::filesystem;
 
 #define STL_FACET_NUMBYTES 4*3*4+2
 // as there is no 'float32_t' standard, we assume the systems 'float'

cmake/Modules/FindHarfBuzz.cmake

@@ -27,8 +27,8 @@
 # Try to find Harfbuzz include and library directories.
 #
 # After successful discovery, this will set for inclusion where needed:
-# HARFBUZZ_INCLUDE_DIRS - containg the HarfBuzz headers
-# HARFBUZZ_LIBRARIES - containg the HarfBuzz library
+# HARFBUZZ_INCLUDE_DIRS - containing the HarfBuzz headers
+# HARFBUZZ_LIBRARIES - containing the HarfBuzz library
 
 find_package(PkgConfig REQUIRED QUIET)
 

cmake/Modules/FindQt5QScintilla.cmake

@@ -6,7 +6,7 @@
 #  QT5QSCINTILLA_INCLUDE_DIR - where to find qsciscintilla.h
 #  QT5QSCINTILLA_INCLUDE_DIRS - qscintilla includes
 #  QT5QSCINTILLA_LIBRARY - where to find the QScintilla library
-#  QT5QSCINTILLA_LIBRARIES - aditional libraries
+#  QT5QSCINTILLA_LIBRARIES - additional libraries
 #  QT5QSCINTILLA_MAJOR_VERSION - major version
 #  QT5QSCINTILLA_MINOR_VERSION - minor version
 #  QT5QSCINTILLA_PATCH_VERSION - patch version

doc/TODO.txt

@@ -157,8 +157,8 @@ o Built-in modules
 o Advanced Transformations
   - Add statement for intersections in cartesian product of childs
 o Function-Module-Interface
-  - Pass a module instanciation to a function (e.g. for a volume() function)
-  - Pass a function to a module instanciation (e.g. for dynamic extrusion paths)
+  - Pass a module instantiation to a function (e.g. for a volume() function)
+  - Pass a function to a module instantiation (e.g. for dynamic extrusion paths)
 o Language Frontend
   - Allow local variables and functions everywhere (not only on module level)
   - Rethink for vs. intersection_for vs. group. Should for loops

doc/translation.txt

@@ -72,7 +72,7 @@ There is no need to add a context preemptively, please wait until a specific
 need arises.
 
 Please note that message context should follow some constrains:
-   - message context comes at some perfomance penalty
+   - message context comes at some performance penalty
    - Keep the context name short
    - try to pick a context name that is unlikely to change
      (changing the context name requires the translates to update the translation)

examples/Advanced/animation.scad

@@ -1,6 +1,6 @@
 // animation.scad - Demo of animation usage
 
-// The animation funtionality is based simply on a variable $t
+// The animation functionality is based simply on a variable $t
 // that is changed automatically by OpenSCAD while repeatedly
 // showing the model.
 // To activate animation, select "View->Animation" from the

examples/Parametric/candleStand.scad

@@ -16,7 +16,7 @@ count=7; //[3:14]
 centerCandle=true;
 
 /* [ Candle Holder ]*/
-//Lenght of candle holder
+//Length of candle holder
 candleSize=7;
 
 //Width of candle holder

fonts-osx/conf.d/README

@@ -9,7 +9,7 @@ enabled/disabled by adjusting the symlinks.
 The files are loaded in numeric order, the structure of the configuration
 has led to the following conventions in usage:
 
- Files begining with:	Contain:
+ Files beginning with:	Contain:
 
  00 through 09		Font directories
  10 through 19		system rendering defaults (AA, etc)

openscad.pro

@@ -139,7 +139,7 @@ netbsd* {
 !isEmpty(OPENSCAD_LIBDIR) {
   unix:!macx {
     QMAKE_LFLAGS = -Wl,-R$$OPENSCAD_LIBDIR/lib $$QMAKE_LFLAGS
-    # need /lib64 beause GLEW installs itself there on 64 bit machines
+    # need /lib64 because GLEW installs itself there on 64 bit machines
     QMAKE_LFLAGS = -Wl,-R$$OPENSCAD_LIBDIR/lib64 $$QMAKE_LFLAGS
   }
 }

releases/2019.02.md

@@ -37,5 +37,5 @@
     * Duplicate passed argument
     * Children passed to module not accepting children
     * Reference to inknown $special_variables
-    * Duplicate assigment
+    * Duplicate assignment
 * New translations: Ukrainian, Polish

scripts/LogicLib.nsh

@@ -124,7 +124,7 @@
     !ifndef _${Type}
       !error "Cannot use _Pop${Type} without a preceding _Push${Type}"
     !endif
-    !ifdef ${_${Type}}Prev${Type}                         ; If a previous statment was active then restore it
+    !ifdef ${_${Type}}Prev${Type}                         ; If a previous statement was active then restore it
       !define _Cur${Type} ${_${Type}}
       !undef _${Type}
       !define _${Type} ${${_Cur${Type}}Prev${Type}}

scripts/check-dependencies.sh

@@ -250,7 +250,7 @@ qscintilla2_sysver()
   debug using qtincdir: $qtincdir
   debug using qscipath: $qscipath
   if [ ! -e $qscipath ]; then
-    debug qscipath doesnt exist. giving up on version.
+    debug qscipath doesn't exist. giving up on version.
     return
   fi
 

scripts/chrpath_linux.c

@@ -182,11 +182,11 @@ figure out enough to find and change the rpath string.  That was fun!
 
 This program assumes (unlike your original program) that there is only
 one DT_RPATH tag in the dynamic section as even with multiple '-Wl,-rpath,'
-commands in the link this seems to occur (they all get concatonated into
+commands in the link this seems to occur (they all get concatenated into
 a : separated path).
 
 Thanks for your help.  If you want to use this on non-x86 you have to change
-the occurances of LSB back to MSB:)
+the occurrences of LSB back to MSB:)
 
 Peeter
 --

scripts/macosx-sanity-check.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 #
-# This is be used to verify that all the dependant libraries of a  Mac OS X executable 
+# This is used to verify that all the dependant libraries of a Mac OS X executable
 # are present and that they are backwards compatible with at least 10.9.
 # Run with an executable as parameter
 # Will return 0 if the executable an all libraries are OK
@@ -145,7 +145,7 @@ def validate_lib(lib):
     lc_rpath = m.group(2)
     if DEBUG: print('Runpath search path: ' + lc_rpath)
 
-    # processed is a dict {libname : [parents]} - each parent is dependant on libname
+    # processed is a dict {libname : [parents]} - each parent is dependent on libname
     processed = {}
     pending = [executable]
     processed[executable] = []

scripts/release-common.sh

@@ -157,7 +157,7 @@ case $OS in
         if [ "`command -v makensis`" ]; then
             MAKENSIS=makensis
         elif [ "`command -v i686-pc-mingw32-makensis`" ]; then
-            # we cant find systems nsis so look for the MXE's version.
+            # we can't find systems nsis so look for the MXE's version.
             # MXE has its own makensis, but its only available under
             # 32-bit MXE. note that the cross-version in theory works
             # the same as the linux version so we can use them, in
@@ -232,7 +232,7 @@ case $OS in
         touch -t 200012121010 parser_yacc.h parser_yacc.cpp lexer_lex.cpp
     ;;
     UNIX_CROSS_WIN)
-        # kludge to enable paralell make
+        # kludge to enable parallel make
         touch -t 200012121010 $OPENSCADDIR/src/parser_yacc.h
         touch -t 200012121010 $OPENSCADDIR/src/parser_yacc.cpp
         touch -t 200012121010 $OPENSCADDIR/src/parser_yacc.hpp
@@ -252,14 +252,14 @@ case $OS in
             make $TARGET -j$NUMCPU
         fi
         if [ ! -e $TARGET/openscad.exe ]; then
-            echo "cant find $TARGET/openscad.exe. build failed. stopping."
+            echo "can't find $TARGET/openscad.exe. build failed. stopping."
             exit
         fi
         # make console pipe-able openscad.com - see winconsole.pro for info
         qmake ../winconsole/winconsole.pro
         make
         if [ ! -e $TARGET/openscad.com ]; then
-            echo "cant find $TARGET/openscad.com. build failed. stopping."
+            echo "can't find $TARGET/openscad.com. build failed. stopping."
             exit
         fi
         cd $OPENSCADDIR

scripts/setenv-unibuild.sh

@@ -58,7 +58,7 @@ setenv_netbsd()
 {
  setenv_common
  echo --- netbsd build situation is complex. it comes with gcc4.5
- echo --- which is incompatable with updated CGAL. 
+ echo --- which is incompatible with updated CGAL. 
  echo --- you may need to hack with newer gcc to make it work
  QMAKESPEC=netbsd-g++
  QTDIR=/usr/pkg/qt4

scripts/uni-build-dependencies.sh

@@ -753,7 +753,7 @@ if [ "`command -v dirname`" ]; then
   cd $RUNDIR
 else
   if [ ! -f openscad.pro ]; then
-    echo "Must be run from the OpenSCAD source root directory (dont have 'dirname')"
+    echo "Must be run from the OpenSCAD source root directory (don't have 'dirname')"
     exit 1
   else
     OPENSCAD_SCRIPTDIR=$PWD

src/FileModule.cc

@@ -183,8 +183,8 @@ AbstractNode *FileModule::instantiateWithFileContext(FileContext *ctx, const Mod
 }
 
 //please preferably use getFilename
-//if you compare filenames (which is the origin of this methode),
-//please call getFilename first and use this methode only as a fallback
+//if you compare filenames (which is the origin of this method),
+//please call getFilename first and use this method only as a fallback
 const std::string FileModule::getFullpath() const {
 	if(fs::path(this->filename).is_absolute()){
 		return this->filename;

src/GLView.cc

@@ -671,7 +671,7 @@ void GLView::decodeMarkerValue(double i, double l, int size_div_sm)
 				{polarity*((i+((char_num)*dig_wk))+(dig_w/2)),dig_buf,0}};
 
 			// convert the char into lines appropriate for the axis being used
-			// psuedo 7 segment vertices are:
+			// pseudo 7 segment vertices are:
 			// A--B
 			// |  |
 			// C--D

src/OffscreenContextGLX.cc

@@ -119,7 +119,7 @@ static int XCreateWindow_error(Display *dpy, XErrorEvent *event)
    "failed to create drawable" errors, and Mesa "WARNING: Application calling 
    GLX 1.3 function when GLX 1.3 is not supported! This is an application bug!"
 
-   This function will alter ctx.openGLContext and ctx.xwindow if successfull
+   This function will alter ctx.openGLContext and ctx.xwindow if successful
  */
 bool create_glx_dummy_window(OffscreenContext &ctx)
 {
@@ -252,7 +252,7 @@ bool save_framebuffer(OffscreenContext *ctx, std::ostream &output)
 #pragma GCC diagnostic ignored "-Waddress"
 bool create_glx_dummy_context(OffscreenContext &ctx)
 {
-	// This will alter ctx.openGLContext and ctx.xdisplay and ctx.xwindow if successfull
+	// This will alter ctx.openGLContext and ctx.xdisplay and ctx.xwindow if successful
 	int major;
 	int minor;
 	auto result = false;

src/OffscreenContextWGL.cc

@@ -95,7 +95,7 @@ LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
 bool create_wgl_dummy_context(OffscreenContext &ctx)
 {
   // this function alters ctx->window and ctx->openGLContext 
-  //  and ctx->dev_context if successfull
+  //  and ctx->dev_context if successful
 
   // create window
 
@@ -202,7 +202,7 @@ OffscreenContext *create_offscreen_context(int w, int h)
 
   // Before an FBO can be setup, a WGL context must be created. 
   // This call alters ctx->window and ctx->openGLContext 
-  //  and ctx->dev_context if successfull
+  //  and ctx->dev_context if successful
   if (!create_wgl_dummy_context( *ctx )) {
     return nullptr;
   }

src/PlatformUtils.h

@@ -74,7 +74,7 @@ namespace PlatformUtils {
 		 * to not leak too detail data about the system but still enough
 		 * to give some indication for troubleshooting on server side.
 		 *
-		 * @return the short system infor
+		 * @return the short system info
 		 */
 		const std::string user_agent();
 

src/boosty.h

@@ -9,7 +9,7 @@
  versions of boost found on popular versions of linux, circa early 2012.
 
  design
-  the boost filsystem changed around 1.46-1.48. we do a large #ifdef
+  the boost filesystem changed around 1.46-1.48. we do a large #ifdef
   based on boost version that wraps various functions appropriately.
   in a few years, this file should be deleted as unnecessary.
 

src/cgalutils-project.cc

@@ -200,7 +200,7 @@ namespace CGALUtils {
 				try {
 					PRINTD("Trying alternative intersection using very large thin box: ");
 					std::vector<CGAL_Point_3> pts;
-					// dont use z of 0. there are bugs in CGAL.
+					// don't use z of 0. there are bugs in CGAL.
 					double inf = 1e8;
 					double eps = 0.001;
 					CGAL_Point_3 minpt(-inf, -inf, -eps);

src/cgalutils-tess-old.cc

@@ -37,7 +37,7 @@ polygons because they all require input polygons to pass the
 triangles.
 
 There is also the question of which underlying number type to use. Some 
-of the CGAL functions simply dont guarantee good results with a type 
+of the CGAL functions simply don't guarantee good results with a type 
 like double. Although much the math here is somewhat simple, like 
 line-line intersection, and involves only simple algebra, the 
 approximations required when using floating-point types can cause the 
@@ -134,7 +134,7 @@ polygon mirror-image and vice versa.
 
 Now, there is a second curious fact that helps us here. In 3d, we are 
 using the plane equation of ax+by+cz+d=0, where a,b,c determine its 
-direction. If you notice, there are actually mutiple sets of numbers 
+direction. If you notice, there are actually multiple sets of numbers 
 a:b:c that will describe the exact same plane. For example the 'ground' 
 plane, called the XYplane, where z is everywhere 0, has the equation 
 0x+0y+1z+0=0, simplifying to a solution for x,y,z of z=0 and x,y = any 

src/clipper-utils.cc

@@ -242,7 +242,7 @@ namespace ClipperUtils {
 			fill_minkowski_insides(lhs, rhs, minkowski_terms);
 			fill_minkowski_insides(rhs, lhs, minkowski_terms);
 
-			// This union operation must be performed at each interation since the minkowski_terms
+			// This union operation must be performed at each iteration since the minkowski_terms
 			// now contain lots of small quads
 			c.Clear();
 			c.AddPaths(minkowski_terms, ClipperLib::ptSubject, true);

src/context.cc

@@ -187,10 +187,10 @@ bool Context::has_local_variable(const std::string &name) const
  * noinline prevents compiler optimization, as we here specifically
  * optimize for stack usage during normal operating, not runtime during
  * error handling.
- * 
+ *
  * @param what what is ignored
  * @param name name of the ignored object
- * @param loc location of the function/modul call
+ * @param loc location of the function/module call
  * @param docPath document path of the root file, used to calculate the relative path
  */
 static void NOINLINE print_ignore_warning(const char *what, const char *name, const Location &loc, const char *docPath){

src/control.cc

@@ -118,7 +118,7 @@ void ControlModule::for_eval(AbstractNode &node, const ModuleInstantiation &inst
 const EvalContext* ControlModule::getLastModuleCtx(const EvalContext *evalctx)
 {
 	// Find the last custom module invocation, which will contain
-	// an eval context with the children of the module invokation
+	// an eval context with the children of the module invocation
 	const Context *tmpc = evalctx;
 	while (tmpc->getParent()) {
 		const ModuleContext *modulectx = dynamic_cast<const ModuleContext*>(tmpc->getParent());
@@ -186,7 +186,7 @@ AbstractNode *ControlModule::instantiate(const Context* ctx, const ModuleInstant
 		}
 
 		// Find the last custom module invocation, which will contain
-		// an eval context with the children of the module invokation
+		// an eval context with the children of the module invocation
 		const EvalContext *modulectx = getLastModuleCtx(evalctx);
 		if (modulectx==nullptr) {
 			return nullptr;

src/input/AxisConfigWidget.cc

@@ -51,7 +51,7 @@ void AxisConfigWidget::AxesChanged(int nr, double val) const{
 
 	//QProgressBar generates the shown string from the format string.
 	//By setting a format string without a place holder,
-	//we can set arbitrary text, like a custom formated double.
+	//we can set arbitrary text, like a custom formatted double.
 	//(Note: QProgressBar internally works on int, so has no formating for double values)
 	//(Note: The text of a QProgressBar can not be set directly)
 	QString s =  QString::number(val, 'f', 2 );

src/parameter/ParameterWidget.cc

@@ -174,8 +174,8 @@ void ParameterWidget::readFile(QString scadFile)
 }
 
 //Write the json file if the parameter sets are not empty.
-//This prevents creating unneccesary json filess.
-//This methode also updates the UI state (change indicator, file name, ...)
+//This prevents creating unnecessary json filess.
+//This method also updates the UI state (change indicator, file name, ...)
 void ParameterWidget::writeFileIfNotEmpty(QString scadFile)
 {
 	setFile(scadFile);

src/parameter/parameterset.cpp

@@ -73,7 +73,7 @@ void ParameterSet::addParameterSet(const std::string setName, const pt::ptree &
 }
 
 /*!
-	Returns true if the file was succesfully read
+	Returns true if the file was successfully read
 */
 bool ParameterSet::readParameterSet(const std::string &filename)
 {

src/parser.y

@@ -221,15 +221,15 @@ assignment:
                         const auto uncPathCurr = boostfs_uncomplete(currFile, mainFilePath.parent_path());
                         const auto uncPathPrev = boostfs_uncomplete(prevFile, mainFilePath.parent_path());
                         if(fileEnded){
-                            //assigments via commandline
+                            //assignments via commandline
                         }else if(prevFile==mainFile && currFile == mainFile){
-                            //both assigments in the mainFile
+                            //both assignments in the mainFile
                             PRINTB("WARNING: %s was assigned on line %i but was overwritten on line %i",
                                     assignment.name%
                                     assignment.location().firstLine()%
                                     LOC(@$).firstLine());
                         }else if(uncPathCurr == uncPathPrev){
-                            //assigment overwritten within the same file
+                            //assignment overwritten within the same file
                             //the line number being equal happens, when a file is included multiple times
                             if(assignment.location().firstLine() != LOC(@$).firstLine()){
                                 PRINTB("WARNING: %s was assigned on line %i of %s but was overwritten on line %i",
@@ -239,7 +239,7 @@ assignment:
                                         LOC(@$).firstLine());
                             }
                         }else if(prevFile==mainFile && currFile != mainFile){
-                            //assigment from the mainFile overwritten by an include
+                            //assignment from the mainFile overwritten by an include
                             PRINTB("WARNING: %s was assigned on line %i of %s but was overwritten on line %i of %s",
                                     assignment.name%
                                     assignment.location().firstLine()%