Make LoadPhData return an espeak_ng_STATUS code.

src/include/espeak-ng/espeak_ng.h

 /* eSpeak NG API.
  *
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 	ENE_WRITE_ERROR = -2,
 	ENE_OUT_OF_MEMORY = -3,
 	ENE_COMPILE_ERRORS = -4,
+	ENE_VERSION_MISMATCH = -5,
 } espeak_ng_STATUS;
 
 #define espeakINITIALIZE_PATH_ONLY 0x4000

src/libespeak-ng/dictionary.c

 /*
  * Copyright (C) 2005 to 2014 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2013-2015 Reece H. Dunn
+ * Copyright (C) 2013-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <wctype.h>
 #include <wchar.h>
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/libespeak-ng/intonation.c

 /*
  * Copyright (C) 2005 to 2007 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <stdint.h>
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/libespeak-ng/klatt.c

 /*
  * Copyright (C) 2008 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2013-2015 Reece H. Dunn
+ * Copyright (C) 2013-2016 Reece H. Dunn
  *
  * Based on a re-implementation by:
  * (c) 1993,94 Jon Iles and Nick Ing-Simmons
 #include <stdint.h>
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "klatt.h"
 #include "phoneme.h"

src/libespeak-ng/numbers.c

 /*
  * Copyright (C) 2005 to 2015 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <wctype.h>
 #include <wchar.h>
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/libespeak-ng/phonemelist.c

 /*
  * Copyright (C) 2005 to 2014 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <stdint.h>
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/libespeak-ng/readclause.c

 /*
  * Copyright (C) 2005 to 2015 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <stdint.h>
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/libespeak-ng/setlengths.c

 /*
  * Copyright (C) 2005 to 2011 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <stdint.h>
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/libespeak-ng/speak_lib.c

 /*
  * Copyright (C) 2005 to 2013 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2013-2015 Reece H. Dunn
+ * Copyright (C) 2013-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <unistd.h>
 #endif
 
-#include "speak_lib.h"
 #include "espeak_ng.h"
+#include "speak_lib.h"
+
 #include "phoneme.h"
 #include "synthesize.h"
 #include "voice.h"
 static int initialise(int control)
 {
 	int param;
-	int result;
 	int srate = 22050; // default sample rate 22050 Hz
 
 	err = EE_OK;
 	LoadConfig();
 
-	if ((result = LoadPhData(&srate)) != 1) { // reads sample rate from espeak-data/phontab
-		if (result == -1) {
+	espeak_ng_STATUS result = LoadPhData(&srate);
+	if (result != ENS_OK) {
+		if (result == ENE_READ_ERROR) {
 			fprintf(stderr, "Failed to load espeak-data\n");
 			if ((control & espeakINITIALIZE_DONT_EXIT) == 0)
 				exit(1);
 		} else
-			fprintf(stderr, "Wrong version of espeak-data 0x%x (expects 0x%x) at %s\n", result, version_phdata, path_home);
+			fprintf(stderr, "Wrong version of espeak-data (expected 0x%x) at %s\n", version_phdata, path_home);
 	}
 	WavegenInit(srate, 0);
 

src/libespeak-ng/spect.c

 /*
  * Copyright (C) 2005 to 2007 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2013-2015 Reece H. Dunn
+ * Copyright (C) 2013-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 
 #include "config.h"
 
+#include <stdio.h>
 #if HAVE_STDINT_H
 #include <stdint.h>
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/libespeak-ng/synth_mbrola.c

 /*
  * Copyright (C) 2005 to 2013 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <stdint.h>
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/libespeak-ng/synthdata.c

 /*
  * Copyright (C) 2005 to 2014 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <stdint.h>
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"
 	return p;
 }
 
-int LoadPhData(int *srate)
+espeak_ng_STATUS LoadPhData(int *srate)
 {
 	int ix;
 	int n_phonemes;
 	int version;
-	int result = 1;
 	int length;
 	int rate;
 	unsigned char *p;
 	int *pw;
 
 	if ((phoneme_tab_data = (unsigned char *)ReadPhFile((void *)(phoneme_tab_data), "phontab", NULL)) == NULL)
-		return -1;
+		return ENE_READ_ERROR;
 	if ((phoneme_index = (USHORT *)ReadPhFile((void *)(phoneme_index), "phonindex", NULL)) == NULL)
-		return -1;
+		return ENE_READ_ERROR;
 	if ((phondata_ptr = ReadPhFile((void *)(phondata_ptr), "phondata", NULL)) == NULL)
-		return -1;
+		return ENE_READ_ERROR;
 	if ((tunes = (TUNE *)ReadPhFile((void *)(tunes), "intonations", &length)) == NULL)
-		return -1;
+		return ENE_READ_ERROR;
 	wavefile_data = (unsigned char *)phondata_ptr;
 	n_tunes = length / sizeof(TUNE);
 
 	}
 
 	if (version != version_phdata)
-		result = version;
+		return ENE_VERSION_MISMATCH;
 
 	// set up phoneme tables
 	p = phoneme_tab_data;
 
 	if (srate != NULL)
 		*srate = rate;
-	return result;
+	return ENS_OK;
 }
 
 void FreePhData(void)

src/libespeak-ng/synthesize.c

 /*
  * Copyright (C) 2005 to 2014 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <stdint.h>
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/libespeak-ng/synthesize.h

 /*
  * Copyright (C) 2005 to 2014 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 frameref_t *LookupSpect(PHONEME_TAB *this_ph, int which, FMT_PARAMS *fmt_params,  int *n_frames, PHONEME_LIST *plist);
 
 unsigned char *LookupEnvelope(int ix);
-int LoadPhData(int *srate);
+espeak_ng_STATUS LoadPhData(int *srate);
 
 void SynthesizeInit(void);
 int  Generate(PHONEME_LIST *phoneme_list, int *n_ph, int resume);

src/libespeak-ng/tr_languages.c

 /*
  * Copyright (C) 2005 to 2015 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 
 #include <wctype.h>
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/libespeak-ng/translate.c

 /*
  * Copyright (C) 2005 to 2014 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <wctype.h>
 #include <wchar.h>
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/libespeak-ng/voices.c

 /*
  * Copyright (C) 2005 to 2015 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include "dirent.h"
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "phoneme.h"
 #include "synthesize.h"
 #include "voice.h"

src/libespeak-ng/wavegen.c

 /*
  * Copyright (C) 2005 to 2013 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <stdint.h>
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"

src/speak-ng.c

 /*
  * Copyright (C) 2005 to 2013 by Jonathan Duddington
  * email: [email protected]
- * Copyright (C) 2015 Reece H. Dunn
+ * Copyright (C) 2015-2016 Reece H. Dunn
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include <locale.h>
 #include <sys/stat.h>
 
-#include "speak_lib.h"
 #include "espeak_ng.h"
+#include "speak_lib.h"
 
 #include "phoneme.h"
 #include "synthesize.h"
 static int initialise(void)
 {
 	int param;
-	int result;
 	int srate = 22050; // default sample rate
 
 	// It seems that the wctype functions don't work until the locale has been set
 			setlocale(LC_CTYPE, "");
 	}
 
-	if ((result = LoadPhData(&srate)) != 1) {
-		if (result == -1) {
+	espeak_ng_STATUS result = LoadPhData(&srate);
+	if (result != ENS_OK) {
+		if (result == ENE_READ_ERROR) {
 			fprintf(stderr, "Failed to load espeak-data\n");
 			exit(1);
 		} else
-			fprintf(stderr, "Wrong version of espeak-data 0x%x (expects 0x%x) at %s\n", result, version_phdata, path_home);
+			fprintf(stderr, "Wrong version of espeak-data (expected 0x%x) at %s\n", version_phdata, path_home);
 	}
 	WavegenInit(srate, 0);
 	LoadConfig();