Share the init_path implementation between libespeak-ng and speak-ng.

src/include/espeak-ng/espeak_ng.h

 
 #define espeakINITIALIZE_PATH_ONLY 0x4000
 
+ESPEAK_NG_API void
+espeak_ng_InitializePath(const char *path);
+
 ESPEAK_NG_API espeak_ng_STATUS
 espeak_ng_CompileDictionary(const char *dsource,
                             const char *dict_name,

src/libespeak-ng/speak_lib.c

 		free(ptr);
 }
 
-static void init_path(const char *path)
+#pragma GCC visibility push(default)
+ESPEAK_NG_API void espeak_ng_InitializePath(const char *path)
 {
+	if (path != NULL) {
+		sprintf(path_home, "%s/espeak-data", path);
+		return;
+	}
+
 #ifdef PLATFORM_WINDOWS
 	HKEY RegKey;
 	unsigned long size;
 	char *env;
 	unsigned char buf[sizeof(path_home)-13];
 
-	if (path != NULL) {
-		sprintf(path_home, "%s/espeak-data", path);
-		return;
-	}
-
 	if ((env = getenv("ESPEAK_DATA_PATH")) != NULL) {
 		sprintf(path_home, "%s/espeak-data", env);
 		if (GetFileLength(path_home) == -2)
 	RegQueryValueExA(RegKey, "path", 0, &var_type, buf, &size);
 
 	sprintf(path_home, "%s\\espeak-data", buf);
+#elif defined(PLATFORM_DOS)
+	strcpy(path_home, PATH_ESPEAK_DATA);
 #else
 	char *env;
 
-	if (path != NULL) {
-		snprintf(path_home, sizeof(path_home), "%s/espeak-data", path);
-		return;
-	}
-
 	// check for environment variable
 	if ((env = getenv("ESPEAK_DATA_PATH")) != NULL) {
 		snprintf(path_home, sizeof(path_home), "%s/espeak-data", env);
 		strcpy(path_home, PATH_ESPEAK_DATA);
 #endif
 }
+#pragma GCC visibility pop
 
 static int initialise(int control)
 {
 				setlocale(LC_CTYPE, "");
 	}
 
-	init_path(path);
+	espeak_ng_InitializePath(path);
 	if (options & espeakINITIALIZE_PATH_ONLY)
 		return 0;
 

src/speak-ng.c

 	return finished;
 }
 
-static void init_path(char *argv0, char *path_specified)
-{
-	(void)argv0; // unused (except with PLATFORM_WINDOWS)
-
-	if (path_specified) {
-		sprintf(path_home, "%s/espeak-data", path_specified);
-		return;
-	}
-
-#ifdef PLATFORM_WINDOWS
-	HKEY RegKey;
-	unsigned long size;
-	unsigned long var_type;
-	char *p;
-	char *env;
-	unsigned char buf[sizeof(path_home)-12];
-
-	if (((env = getenv("ESPEAK_DATA_PATH")) != NULL) && ((strlen(env)+12) < sizeof(path_home))) {
-		sprintf(path_home, "%s\\espeak-data", env);
-		if (GetFileLength(path_home) == -2)
-			return; // an espeak-data directory exists in the directory specified by environment variable
-	}
-
-	strcpy(path_home, argv0);
-	if ((p = strrchr(path_home, '\\')) != NULL) {
-		strcpy(&p[1], "espeak-data");
-		if (GetFileLength(path_home) == -2)
-			return; // an espeak-data directory exists in the same directory as the espeak program
-	}
-
-	// otherwise, look in the Windows Registry
-	buf[0] = 0;
-	RegOpenKeyEx(HKEY_LOCAL_MACHINE, "Software\\Microsoft\\Speech\\Voices\\Tokens\\eSpeak", 0, KEY_READ, &RegKey);
-	size = sizeof(buf);
-	var_type = REG_SZ;
-	RegQueryValueEx(RegKey, "path", 0, &var_type, buf, &size);
-
-	sprintf(path_home, "%s\\espeak-data", buf);
-#else
-#ifdef PLATFORM_DOS
-	strcpy(path_home, PATH_ESPEAK_DATA);
-#else
-	char *env;
-	if ((env = getenv("ESPEAK_DATA_PATH")) != NULL) {
-		snprintf(path_home, sizeof(path_home), "%s/espeak-data", env);
-		if (GetFileLength(path_home) == -2)
-			return; // an espeak-data directory exists
-	}
-
-	snprintf(path_home, sizeof(path_home), "%s/espeak-data", getenv("HOME"));
-	if (access(path_home, R_OK) != 0)
-		strcpy(path_home, PATH_ESPEAK_DATA);
-#endif
-#endif
-}
-
 static int initialise(void)
 {
 	int param;
 				option_multibyte = value;
 			break;
 		case 'h':
-			init_path(argv[0], data_path);
+			espeak_ng_InitializePath(data_path);
 			printf("\nspeak text-to-speech: %s   Data at: %s\n%s", version_string, path_home, help_text);
 			exit(0);
 		case 'k':
 			}
 			break;
 		case 0x104: // --voices
-			init_path(argv[0], data_path);
+			espeak_ng_InitializePath(data_path);
 			DisplayVoices(stdout, optarg2);
 			exit(0);
 		case 0x106: // -- split
 			}
 			break;
 		case 0x10b: // --version
-			init_path(argv[0], data_path);
+			espeak_ng_InitializePath(data_path);
 			printf("speak text-to-speech: %s   Data at: %s\n", version_string, path_home);
 			exit(0);
 		case 0x10c: // --sep
 		}
 	}
 
-	init_path(argv[0], data_path);
+	espeak_ng_InitializePath(data_path);
 	initialise();
 
 	if (voicename[0] == 0)