Fix spelling

18 files changed, 27 insertions, 27 deletions

diff --git a/benchmark/bm_ao_render.rb b/benchmark/bm_ao_render.rb
index dc4388c7d..9381c85b6 100644
--- a/benchmark/bm_ao_render.rb
+++ b/benchmark/bm_ao_render.rb
@@ -260,7 +260,7 @@ class Scene
       w.times do |x|
         rad = Vec.new(0.0, 0.0, 0.0)
 
-        # Subsmpling
+        # Subsampling
         nsubsamples.times do |v|
           nsubsamples.times do |u|
             cnt = cnt + 1
diff --git a/build_config/default.rb b/build_config/default.rb
index 54c51c44f..04bc60540 100644
--- a/build_config/default.rb
+++ b/build_config/default.rb
@@ -76,7 +76,7 @@ MRuby::Build.new do |conf|
   #   exts.library = '.a'
   # end
 
-  # file separetor
+  # file separator
   # conf.file_separator = '/'
 
   # Turn on `enable_debug` for better debugging
diff --git a/build_config/host-shared.rb b/build_config/host-shared.rb
index 4225d7f4f..6b19b3640 100644
--- a/build_config/host-shared.rb
+++ b/build_config/host-shared.rb
@@ -26,7 +26,7 @@ MRuby::Build.new do |conf|
      exts.library = '.so'
   end
 
-  # file separetor
+  # file separator
   # conf.file_separator = '/'
 
   # Turn on `enable_debug` for better debugging
diff --git a/doc/guides/compile.md b/doc/guides/compile.md
index f09050f9d..6fa8a761b 100644
--- a/doc/guides/compile.md
+++ b/doc/guides/compile.md
@@ -13,7 +13,7 @@ To compile mruby out of the source code you need the following tools:
 * Ruby 2.0 or later (e.g. `ruby` or `jruby`)
 
 Note that `bison` bundled with MacOS is too old to compile `mruby`.
-Try `brew install bison` and follow the instuction shown to update
+Try `brew install bison` and follow the instruction shown to update
 the `$PATH` to compile `mruby`. We also encourage to upgrade `ruby`
 on MacOS in similar manner.
 
@@ -29,7 +29,7 @@ inside of the mruby source root. To generate and execute the test tools call
 `rake test`. To clean all build files call `rake clean`. To see full command
 line on build, call `rake -v`.
 
-You can specify your owne configration file by the `MRUBY_CONFIG` environment
+You can specify your owne configuration file by the `MRUBY_CONFIG` environment
 variable (you can use `CONFIG` for shorthand for `MRUBY_CONFIG`). If the path
 doesn't exist, *build_config/${MRUBY_CONFIG}.rb* is used. The default
 configuration is defined in the `build_config/default.rb` file.
diff --git a/doc/guides/mrbgems.md b/doc/guides/mrbgems.md
index f05fd1f08..7120901ee 100644
--- a/doc/guides/mrbgems.md
+++ b/doc/guides/mrbgems.md
@@ -59,7 +59,7 @@ NOTE: `:bitbucket` option supports only git. Hg is unsupported in this version.
 
 There are instances when you wish to add a collection of mrbgems into mruby at
 once, or be able to substitute mrbgems based on configuration, without having to
-add each gem to your build configration file.  A packaged collection of mrbgems
+add each gem to your build configuration file.  A packaged collection of mrbgems
 is called a GemBox.  A GemBox is a file that contains a list of mrbgems to load
 into mruby, in the same format as if you were adding them to the build config
 via `config.gem`, but wrapped in an `MRuby::GemBox` object.  GemBoxes are
@@ -78,7 +78,7 @@ must be saved with a *.gembox* extension inside the *mrbgems* directory to to be
 picked up by mruby.
 
 To use this example GemBox, we save it as `custom.gembox` inside the *mrbgems*
-directory in mruby, and add the following to your build configration file inside
+directory in mruby, and add the following to your build configuration file inside
 the build block:
 ```ruby
 conf.gembox 'custom'
diff --git a/doc/mruby3.md b/doc/mruby3.md
index ae1a9b38e..75839705c 100644
--- a/doc/mruby3.md
+++ b/doc/mruby3.md
@@ -13,7 +13,7 @@ directory. For examples:
 * `boxing`: compiles all three boxing options
 * `clang-asan`: compiles with `clang`'s Address Sanitizer
 
-You can specify the build configration file with the
+You can specify the build configuration file with the
 `MRUBY_CONFIG` environment variable (or `CONFIG` in short).
 If the value specified by `MRUBY_CONFIG` is not the path to
 the configuration file, `build_config/${MRUBY_CONFIG}.rb` is
@@ -68,7 +68,7 @@ Some configuration macro names are changed for consistency (use `MRB_USE_XXX`
 ## `MRB_NO_BOXING`
 
 Uses `struct` to represent `mrb_value`. Consumes more memory
-but easier to inveticate the internal and to debug. It used
+but easier to investigate the internal and to debug. It used
 to be default `mrb_value` representation. Now the default is
 `MRB_WORD_BOXING`.
 
@@ -137,7 +137,7 @@ Instructions for old exception handling
 * `OP_EPUSH`
 * `OP_EPOP`
 
-No more operand extention
+No more operand extension
 
 * `OP_EXT1`
 * `OP_EXT2`
diff --git a/include/mruby/array.h b/include/mruby/array.h
index 34011d537..0b0137d5f 100644
--- a/include/mruby/array.h
+++ b/include/mruby/array.h
@@ -296,7 +296,7 @@ MRB_API mrb_value mrb_ary_clear(mrb_state *mrb, mrb_value self);
  *
  * @param mrb The mruby state reference.
  * @param ary The target array
- * @param sep The separater, can be NULL
+ * @param sep The separator, can be NULL
  */
 MRB_API mrb_value mrb_ary_join(mrb_state *mrb, mrb_value ary, mrb_value sep);
 
diff --git a/include/mruby/khash.h b/include/mruby/khash.h
index 4884ba73c..1fb6eecbb 100644
--- a/include/mruby/khash.h
+++ b/include/mruby/khash.h
@@ -91,7 +91,7 @@ kh_fill_flags(uint8_t *p, uint8_t c, size_t len)
    khval_t: value data type
    kh_is_map: (0: hash set / 1: hash map)
    __hash_func: hash function
-   __hash_equal: hash comparation function
+   __hash_equal: hash comparison function
 */
 #define KHASH_DEFINE(name, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) \
   mrb_noreturn void mrb_raise_nomemory(mrb_state *mrb);                 \
diff --git a/include/mruby/string.h b/include/mruby/string.h
index d53f09e96..288f0fda0 100644
--- a/include/mruby/string.h
+++ b/include/mruby/string.h
@@ -345,9 +345,9 @@ MRB_API mrb_value mrb_str_new_capa(mrb_state *mrb, size_t capa);
 MRB_API const char *mrb_string_cstr(mrb_state *mrb, mrb_value str);
 /* NULL terminated C string from mrb_value; `str` will be updated */
 MRB_API const char *mrb_string_value_cstr(mrb_state *mrb, mrb_value *str);
-/* obslete: use RSTRING_PTR() */
+/* obsolete: use RSTRING_PTR() */
 MRB_API const char *mrb_string_value_ptr(mrb_state *mrb, mrb_value str);
-/* obslete: use RSTRING_LEN() */
+/* obsolete: use RSTRING_LEN() */
 MRB_API mrb_int mrb_string_value_len(mrb_state *mrb, mrb_value str);
 
 /**
@@ -433,7 +433,7 @@ MRB_API int mrb_str_cmp(mrb_state *mrb, mrb_value str1, mrb_value str2);
  * - Returned string does not contain any NUL characters (but terminator).
  * - It raises an ArgumentError exception if Ruby string contains
  *   NUL characters.
- * - Retured string will be freed automatically on next GC.
+ * - Returned string will be freed automatically on next GC.
  * - Caller can modify returned string without affecting Ruby string
  *   (e.g. it can be used for mkstemp(3)).
  *
diff --git a/mrbgems/mruby-bin-debugger/bintest/print.rb b/mrbgems/mruby-bin-debugger/bintest/print.rb
index 74f17d8de..4a4339f5a 100644
--- a/mrbgems/mruby-bin-debugger/bintest/print.rb
+++ b/mrbgems/mruby-bin-debugger/bintest/print.rb
@@ -67,7 +67,7 @@ assert('mruby-bin-debugger(print) invalid arguments') do
   BinTest_MrubyBinDebugger.test(src, tc)
 end
 
-assert('mruby-bin-debugger(print) nomal') do
+assert('mruby-bin-debugger(print) normal') do
   # ruby source
   src = <<"SRC"
 foo = 'foo'
@@ -99,7 +99,7 @@ assert('mruby-bin-debugger(print) error') do
   BinTest_MrubyBinDebugger.test(src, tc)
 end
 
-# Kernel#instance_eval(string) does't work multiple statements.
+# Kernel#instance_eval(string) doesn't work multiple statements.
 =begin
 assert('mruby-bin-debugger(print) multiple statements') do
   # ruby source
@@ -234,7 +234,7 @@ SRC
   BinTest_MrubyBinDebugger.test(src, tc)
 end
 
-assert('mruby-bin-debugger(print) same name:local variabe') do
+assert('mruby-bin-debugger(print) same name:local variable') do
   # ruby source (bp is break point)
   src = <<"SRC"
 lv = 'top'
diff --git a/mrbgems/mruby-method/README.md b/mrbgems/mruby-method/README.md
index 89f90bed8..5cb0b342a 100644
--- a/mrbgems/mruby-method/README.md
+++ b/mrbgems/mruby-method/README.md
@@ -1,7 +1,7 @@
 mruby-method
 ===
 
-A implementetion of class **Method** and **UnboundMethod** for mruby
+A implementation of class **Method** and **UnboundMethod** for mruby
 
 ```ruby
 p Enumerable.instance_method(:find_all).source_location
diff --git a/mrbgems/mruby-sprintf/src/sprintf.c b/mrbgems/mruby-sprintf/src/sprintf.c
index b10db8547..97e821c2f 100644
--- a/mrbgems/mruby-sprintf/src/sprintf.c
+++ b/mrbgems/mruby-sprintf/src/sprintf.c
@@ -506,7 +506,7 @@ get_hash(mrb_state *mrb, mrb_value *hash, mrb_int argc, const mrb_value *argv)
  *  For more complex formatting, Ruby supports a reference by name.
  *  %<name>s style uses format style, but %{name} style doesn't.
  *
- *  Exapmles:
+ *  Examples:
  *    sprintf("%<foo>d : %<bar>f", { :foo => 1, :bar => 2 })
  *      #=> 1 : 2.000000
  *    sprintf("%{foo}f", { :foo => 1 })
diff --git a/mrbgems/mruby-struct/mrblib/struct.rb b/mrbgems/mruby-struct/mrblib/struct.rb
index 21cbb47ed..b398409c3 100644
--- a/mrbgems/mruby-struct/mrblib/struct.rb
+++ b/mrbgems/mruby-struct/mrblib/struct.rb
@@ -20,7 +20,7 @@ if Object.const_defined?(:Struct)
 
     ##
     # Calls the given block for each element of +self+
-    # and pass the name and value of the respectiev
+    # and pass the name and value of the respective
     # element.
     #
     # ISO 15.2.18.4.5
diff --git a/src/gc.c b/src/gc.c
index fb3a7bd16..83454fa5c 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -45,7 +45,7 @@
 
   == Two White Types
 
-  There're two white color types in a flip-flop fashion: White-A and White-B,
+  There are two white color types in a flip-flop fashion: White-A and White-B,
   which respectively represent the Current White color (the newly allocated
   objects in the current GC cycle) and the Sweep Target White color (the
   dead objects to be swept).
diff --git a/src/string.c b/src/string.c
index cf71914b3..4d09c7eab 100644
--- a/src/string.c
+++ b/src/string.c
@@ -2997,7 +2997,7 @@ mrb_float_read(const char *string, char **endPtr)
     int c;
     int exp = 0;                /* Exponent read from "EX" field. */
     int fracExp = 0;            /* Exponent that derives from the fractional
-                                 * part.  Under normal circumstatnces, it is
+                                 * part.  Under normal circumstances, it is
                                  * the negative of the number of digits in F.
                                  * However, if I is very long, the last digits
                                  * of I get dropped (otherwise a long I with a
diff --git a/src/vm.c b/src/vm.c
index b56e960a2..76bd541c3 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1840,11 +1840,11 @@ RETRY_TRY_BLOCK:
         if (mlen < m2) {
           stack_clear(&regs[len-m2+mlen+1], m2-mlen);
         }
-        /* initalize rest arguments with empty Array */
+        /* initialize rest arguments with empty Array */
         if (r) {
           regs[m1+o+1] = mrb_ary_new_capa(mrb, 0);
         }
-        /* skip initailizer of passed arguments */
+        /* skip initializer of passed arguments */
         if (o > 0 && argc-kargs > m1+m2)
           pc += (argc - kargs - m1 - m2)*3;
       }
diff --git a/test/t/array.rb b/test/t/array.rb
index b3952e5a5..1e224a034 100644
--- a/test/t/array.rb
+++ b/test/t/array.rb
@@ -5,7 +5,7 @@ assert('Array', '15.2.12') do
   assert_equal(Class, Array.class)
 end
 
-assert('Array inclueded modules', '15.2.12.3') do
+assert('Array included modules', '15.2.12.3') do
   assert_true(Array.include?(Enumerable))
 end
 
diff --git a/test/t/module.rb b/test/t/module.rb
index 2957dec52..07d550804 100644
--- a/test/t/module.rb
+++ b/test/t/module.rb
@@ -674,7 +674,7 @@ end
     c1 = labeled_class("C1")
     c2 = labeled_class("C2", c1) {prepend m}
     c1.class_eval {prepend m}
-    assert_equal([m, c2, m, c1], c2.ancestors[0, 4], "should accesisble prepended module in superclass")
+    assert_equal([m, c2, m, c1], c2.ancestors[0, 4], "should accessible prepended module in superclass")
   end
 
   # requires #assert_separately