Fix names of functions in last commit

* src/coding.h (build_string_from_utf8): Rename from
build_utf8_string.  All callers changed.
* src/coding.c (make_string_from_utf8): Rename from
make_utf8_string.  All callers changed.

4 files changed, 30 insertions, 24 deletions

diff --git a/src/coding.c b/src/coding.c
index 71f687a14e3..9cba6494a8d 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -6353,22 +6353,26 @@ utf8_string_p (Lisp_Object string)
   return check_utf_8 (&coding) != -1;
 }
 
+/* Like make_string, but always returns a multibyte Lisp string, and
+   avoids decoding if TEXT encoded in UTF-8.  */
+
 Lisp_Object
-make_utf8_string (const char *data, ptrdiff_t size)
+make_string_from_utf8 (const char *text, ptrdiff_t nbytes)
 {
   ptrdiff_t chars, bytes;
-  parse_str_as_multibyte ((const unsigned char *) data, size, &chars, &bytes);
-  /* If DATA is a valid UTF-8 string, we can convert it to a Lisp
+  parse_str_as_multibyte ((const unsigned char *) text, nbytes,
+                          &chars, &bytes);
+  /* If TEXT is a valid UTF-8 string, we can convert it to a Lisp
      string directly.  Otherwise, we need to decode it.  */
-  if (chars == size || bytes == size)
-    return make_specified_string (data, chars, size, true);
+  if (chars == nbytes || bytes == nbytes)
+    return make_specified_string (text, chars, nbytes, true);
   else
     {
       struct coding_system coding;
       setup_coding_system (Qutf_8_unix, &coding);
       coding.mode |= CODING_MODE_LAST_BLOCK;
-      coding.source = (const unsigned char *) data;
-      decode_coding_object (&coding, Qnil, 0, 0, size, size, Qt);
+      coding.source = (const unsigned char *) text;
+      decode_coding_object (&coding, Qnil, 0, 0, nbytes, nbytes, Qt);
       return coding.dst_object;
     }
 }
diff --git a/src/coding.h b/src/coding.h
index 773df9abb90..619ca29c8e4 100644
--- a/src/coding.h
+++ b/src/coding.h
@@ -695,7 +695,7 @@ extern Lisp_Object raw_text_coding_system (Lisp_Object);
 extern bool raw_text_coding_system_p (struct coding_system *);
 extern Lisp_Object coding_inherit_eol_type (Lisp_Object, Lisp_Object);
 extern Lisp_Object complement_process_encoding_system (Lisp_Object);
-extern Lisp_Object make_utf8_string (const char *, ptrdiff_t);
+extern Lisp_Object make_string_from_utf8 (const char *, ptrdiff_t);
 
 extern void decode_coding_gap (struct coding_system *,
                                ptrdiff_t, ptrdiff_t);
@@ -763,14 +763,13 @@ surrogates_to_codepoint (int low, int high)
   return 0x10000 + (low - 0xDC00) + ((high - 0xD800) * 0x400);
 }
 
-/* Create a multibyte Lisp string from the NUL-terminated UTF-8 string
-   beginning at DATA.  If the string is not a valid UTF-8 string, an
-   unspecified string is returned.  */
+/* Like build_string, but always returns a multibyte string, and is
+   optimized for speed when STR is a UTF-8 encoded text string.  */
 
 INLINE Lisp_Object
-build_utf8_string (const char *data)
+build_string_from_utf8 (const char *str)
 {
-  return make_utf8_string (data, strlen (data));
+  return make_string_from_utf8 (str, strlen (str));
 }
 
 
diff --git a/src/emacs-module.c b/src/emacs-module.c
index b9050942559..685bdb8bb4c 100644
--- a/src/emacs-module.c
+++ b/src/emacs-module.c
@@ -530,7 +530,7 @@ module_make_function (emacs_env *env, ptrdiff_t min_arity, ptrdiff_t max_arity,
   function->data = data;
 
   if (documentation)
-    function->documentation = build_utf8_string (documentation);
+    function->documentation = build_string_from_utf8 (documentation);
 
   Lisp_Object result;
   XSET_MODULE_FUNCTION (result, function);
@@ -663,7 +663,7 @@ module_make_string (emacs_env *env, const char *str, ptrdiff_t length)
   MODULE_FUNCTION_BEGIN (NULL);
   if (! (0 <= length && length <= STRING_BYTES_BOUND))
     overflow_error ();
-  Lisp_Object lstr = make_utf8_string (str, length);
+  Lisp_Object lstr = make_string_from_utf8 (str, length);
   return lisp_to_value (env, lstr);
 }
 
diff --git a/src/json.c b/src/json.c
index cc98914423b..e2a4424463b 100644
--- a/src/json.c
+++ b/src/json.c
@@ -215,7 +215,7 @@ json_has_suffix (const char *string, const char *suffix)
 
 #endif
 
-/* Note that all callers of make_utf8_string and build_utf8_string
+/* Note that all callers of make_string_from_utf8 and build_string_from_utf8
    below either pass only value UTF-8 strings or use the functionf for
    formatting error messages; in the latter case correctness isn't
    critical.  */
@@ -267,9 +267,11 @@ json_parse_error (const json_error_t *error)
     symbol = Qjson_parse_error;
 #endif
   xsignal (symbol,
-           list5 (build_utf8_string (error->text),
-                  build_utf8_string (error->source), INT_TO_INTEGER (error->line),
-                  INT_TO_INTEGER (error->column), INT_TO_INTEGER (error->position)));
+           list5 (build_string_from_utf8 (error->text),
+                  build_string_from_utf8 (error->source),
+                  INT_TO_INTEGER (error->line),
+                  INT_TO_INTEGER (error->column),
+                  INT_TO_INTEGER (error->position)));
 }
 
 static void
@@ -612,7 +614,7 @@ usage: (json-serialize OBJECT &rest ARGS)  */)
     json_out_of_memory ();
   record_unwind_protect_ptr (json_free, string);
 
-  return unbind_to (count, build_utf8_string (string));
+  return unbind_to (count, build_string_from_utf8 (string));
 }
 
 struct json_buffer_and_size
@@ -819,8 +821,8 @@ json_to_lisp (json_t *json, struct json_configuration *conf)
     case JSON_REAL:
       return make_float (json_real_value (json));
     case JSON_STRING:
-      return make_utf8_string (json_string_value (json),
-                               json_string_length (json));
+      return make_string_from_utf8 (json_string_value (json),
+                                    json_string_length (json));
     case JSON_ARRAY:
       {
         if (++lisp_eval_depth > max_lisp_eval_depth)
@@ -879,7 +881,7 @@ json_to_lisp (json_t *json, struct json_configuration *conf)
               json_t *value;
               json_object_foreach (json, key_str, value)
                 {
-                  Lisp_Object key = build_utf8_string (key_str);
+                  Lisp_Object key = build_string_from_utf8 (key_str);
                   EMACS_UINT hash;
                   ptrdiff_t i = hash_lookup (h, key, &hash);
                   /* Keys in JSON objects are unique, so the key can't
@@ -896,7 +898,8 @@ json_to_lisp (json_t *json, struct json_configuration *conf)
               json_t *value;
               json_object_foreach (json, key_str, value)
                 {
-                  Lisp_Object key = Fintern (build_utf8_string (key_str), Qnil);
+                  Lisp_Object key
+                    = Fintern (build_string_from_utf8 (key_str), Qnil);
                   result
                     = Fcons (Fcons (key, json_to_lisp (value, conf)),
                              result);