Fix some spelling errors - mostly in comments & documentation.

I did not touch the Changelog file and any third party stuff.

additonal -> additional (1)
apppend -> append (2)
constuctor -> constructor (2)
contect -> context (2)
dobulequote -> doublequote (1)
elemnts -> elements (1)
exakt -> exact (2)
exluded -> exclude (1)
explicitely -> explicitly (2)
narcissic -> narcissistic (1)
ocurred -> occurred (1)
occuring -> occurring (2)
preceeds -> preceded (1)
ot -> to (2)
wehther -> whether (2)

doc/examples/json_pointer__operator_add.cpp

@@ -9,7 +9,7 @@ int main()
     json::json_pointer ptr("/foo");
     std::cout << ptr << '\n';
 
-    // apppend a JSON Pointer
+    // append a JSON Pointer
     ptr /= json::json_pointer("/bar/baz");
     std::cout << ptr << '\n';
 

doc/examples/json_pointer__operator_add_binary.cpp

@@ -8,7 +8,7 @@ int main()
     // create a JSON pointer
     json::json_pointer ptr("/foo");
 
-    // apppend a JSON Pointer
+    // append a JSON Pointer
     std::cout << ptr / json::json_pointer("/bar/baz") << '\n';
 
     // append a string

include/nlohmann/detail/conversions/to_chars.hpp

@@ -330,7 +330,7 @@ inline cached_power get_cached_power_for_binary_exponent(int e)
     //      ==> 2^(q - 1 + alpha) <= c * 2^(e + q)
     //      ==> 2^(alpha - e - 1) <= c
     //
-    // If c were an exakt power of ten, i.e. c = 10^k, one may determine k as
+    // If c were an exact power of ten, i.e. c = 10^k, one may determine k as
     //
     //      k = ceil( log_10( 2^(alpha - e - 1) ) )
     //        = ceil( (alpha - e - 1) * log_10(2) )

include/nlohmann/detail/input/binary_reader.hpp

@@ -1929,7 +1929,7 @@ class binary_reader
     /*!
     @param[in] format   the current format
     @param[in] detail   a detailed error message
-    @param[in] context  further contect information
+    @param[in] context  further context information
     @return a message string to use in the parse_error exceptions
     */
     std::string exception_message(const input_format_t format,

include/nlohmann/detail/iterators/iter_impl.hpp

@@ -121,8 +121,8 @@ class iter_impl
     /*!
     @brief const copy constructor
     @param[in] other const iterator to copy from
-    @note This copy constuctor had to be defined explicitely to circumvent a bug
-          occuring on msvc v19.0 compiler (VS 2015) debug build. For more
+    @note This copy constructor had to be defined explicitly to circumvent a bug
+          occurring on msvc v19.0 compiler (VS 2015) debug build. For more
           information refer to: https://github.com/nlohmann/json/issues/1608
     */
     iter_impl(const iter_impl<const BasicJsonType>& other) noexcept

include/nlohmann/detail/json_pointer.hpp

@@ -126,7 +126,7 @@ class json_pointer
     /*!
     @brief append an array index at the end of this JSON pointer
 
-    @param[in] array_index  array index ot append
+    @param[in] array_index  array index to append
     @return JSON pointer with @a array_index appended
 
     @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add}

include/nlohmann/json.hpp

@@ -4019,7 +4019,7 @@ class basic_json
     /*!
     @brief check the existence of an element in a JSON object given a JSON pointer
 
-    Check wehther the given JSON pointer @a ptr can be resolved in the current
+    Check whether the given JSON pointer @a ptr can be resolved in the current
     JSON value.
 
     @note This method can be executed on any JSON value type.

single_include/nlohmann/json.hpp

@@ -7056,7 +7056,7 @@ class binary_reader
     /*!
     @param[in] format   the current format
     @param[in] detail   a detailed error message
-    @param[in] context  further contect information
+    @param[in] context  further context information
     @return a message string to use in the parse_error exceptions
     */
     std::string exception_message(const input_format_t format,
@@ -9414,8 +9414,8 @@ class iter_impl
     /*!
     @brief const copy constructor
     @param[in] other const iterator to copy from
-    @note This copy constuctor had to be defined explicitely to circumvent a bug
-          occuring on msvc v19.0 compiler (VS 2015) debug build. For more
+    @note This copy constructor had to be defined explicitly to circumvent a bug
+          occurring on msvc v19.0 compiler (VS 2015) debug build. For more
           information refer to: https://github.com/nlohmann/json/issues/1608
     */
     iter_impl(const iter_impl<const BasicJsonType>& other) noexcept
@@ -10187,7 +10187,7 @@ class json_pointer
     /*!
     @brief append an array index at the end of this JSON pointer
 
-    @param[in] array_index  array index ot append
+    @param[in] array_index  array index to append
     @return JSON pointer with @a array_index appended
 
     @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add}
@@ -12966,7 +12966,7 @@ inline cached_power get_cached_power_for_binary_exponent(int e)
     //      ==> 2^(q - 1 + alpha) <= c * 2^(e + q)
     //      ==> 2^(alpha - e - 1) <= c
     //
-    // If c were an exakt power of ten, i.e. c = 10^k, one may determine k as
+    // If c were an exact power of ten, i.e. c = 10^k, one may determine k as
     //
     //      k = ceil( log_10( 2^(alpha - e - 1) ) )
     //        = ceil( (alpha - e - 1) * log_10(2) )
@@ -18549,7 +18549,7 @@ class basic_json
     /*!
     @brief check the existence of an element in a JSON object given a JSON pointer
 
-    Check wehther the given JSON pointer @a ptr can be resolved in the current
+    Check whether the given JSON pointer @a ptr can be resolved in the current
     JSON value.
 
     @note This method can be executed on any JSON value type.

test/src/unit-cbor.cpp

@@ -1287,7 +1287,7 @@ TEST_CASE("CBOR")
         }
     }
 
-    SECTION("additonal deserialization")
+    SECTION("additional deserialization")
     {
         SECTION("0x7b (string)")
         {

test/src/unit-class_parser.cpp

@@ -210,7 +210,7 @@ json parser_helper(const std::string& s)
     json j;
     json::parser(nlohmann::detail::input_adapter(s)).parse(true, j);
 
-    // if this line was reached, no exception ocurred
+    // if this line was reached, no exception occurred
     // -> check if result is the same without exceptions
     json j_nothrow;
     CHECK_NOTHROW(json::parser(nlohmann::detail::input_adapter(s), nullptr, false).parse(true, j_nothrow));

test/src/unit-msgpack.cpp

@@ -1359,7 +1359,7 @@ TEST_CASE("MessagePack roundtrips" * doctest::skip())
 {
     SECTION("input from msgpack-python")
     {
-        // most of these are exluded due to differences in key order (not a real problem)
+        // most of these are excluded due to differences in key order (not a real problem)
         auto exclude_packed = std::set<std::string>
         {
             "test/data/json.org/1.json",

test/src/unit-regression.cpp

@@ -164,7 +164,7 @@ TEST_CASE("regression tests")
 {
     SECTION("issue #60 - Double quotation mark is not parsed correctly")
     {
-        SECTION("escape_dobulequote")
+        SECTION("escape_doublequote")
         {
             auto s = "[\"\\\"foo\\\"\"]";
             json j = json::parse(s);

test/src/unit-udt.cpp

@@ -238,7 +238,7 @@ void from_json(const nlohmann::json& j, contact_book& cb)
 TEST_CASE("basic usage" * doctest::test_suite("udt"))
 {
 
-    // a bit narcissic maybe :) ?
+    // a bit narcissistic maybe :) ?
     const udt::age a
     {
         23

test/src/unit-unicode.cpp

@@ -1152,7 +1152,7 @@ TEST_CASE("Unicode" * doctest::skip())
         json j;
         CHECK_NOTHROW(f >> j);
 
-        // the array has 1112064 + 1 elemnts (a terminating "null" value)
+        // the array has 1112064 + 1 elements (a terminating "null" value)
         // Note: 1112064 = 0x1FFFFF code points - 2048 invalid values between
         // 0xD800 and 0xDFFF.
         CHECK(j.size() == 1112065);