speech_*(): New functions

4 files changed, 143 insertions, 1 deletions

diff --git a/src/local.mk b/src/local.mk
index e4bcd1c..afd6595 100644
--- a/src/local.mk
+++ b/src/local.mk
@@ -1,2 +1,4 @@
 timeteller_SOURCES += \
-	%reldir%/main.c
+	%reldir%/main.c \
+	%reldir%/speech.c \
+	%reldir%/speech.h
diff --git a/src/main.c b/src/main.c
index 2cc4061..63bebc9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -19,8 +19,15 @@
  * along with Timeteller.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "speech.h"
+
 int
 main(int argc, char **argv)
 {
+	struct speech *speech;
+
+	speech = speech_init(argv[1]);
+	speech_destroy(&speech);
+
 	return 0;
 }
diff --git a/src/speech.c b/src/speech.c
new file mode 100644
index 0000000..993c609
--- /dev/null
+++ b/src/speech.c
@@ -0,0 +1,97 @@
+/*
+ * Speech functions
+ *
+ * Copyright (C) 2019  Patrick McDermott
+ *
+ * This file is part of Timeteller.
+ *
+ * Timeteller is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Timeteller is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Timeteller.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "speech.h"
+
+#include <assert.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include <flite/flite.h>
+
+struct speech {
+	cst_voice *voice;
+};
+
+struct speech *
+speech_init(const char *voice)
+{
+	struct speech *speech;
+
+	assert(voice && *voice);
+
+	speech = calloc(1, sizeof(*speech));
+	if (speech == NULL) {
+		return NULL;
+	}
+
+	flite_init();
+	speech->voice = flite_voice_select(voice);
+	if (speech->voice == NULL) {
+		free(speech);
+		return NULL;
+	}
+
+	return speech;
+}
+
+float
+speech_play_time(const struct speech *speech)
+{
+	time_t     t = 0;
+	struct tm *tm;
+	char       buffer[6];
+
+	assert(speech);
+
+	time(&t);
+	if (t < (time_t) 0) {
+		return -1;
+	}
+
+	tm = localtime(&t);
+	if (tm == NULL) {
+		return -1;
+	}
+
+	strftime(buffer, sizeof(buffer) / sizeof(buffer[0]), "%H:%M", tm);
+	/* Drop leading zero, for nicer pronunciations.  The IANA Time Zone
+	 * Database and GNU C Library strftime() implementations offer "%k", but
+	 * it's not in C or POSIX.  */
+	if (buffer[0] == '0') {
+		buffer[0] = ' ';
+	}
+
+	return flite_text_to_speech(buffer, speech->voice, "play");
+}
+
+struct speech *
+speech_destroy(struct speech **speech_p)
+{
+	struct speech *speech;
+
+	assert(speech_p && *speech_p);
+
+	speech = *speech_p;
+
+	free(speech);
+	return speech = NULL;
+}
diff --git a/src/speech.h b/src/speech.h
new file mode 100644
index 0000000..07a909d
--- /dev/null
+++ b/src/speech.h
@@ -0,0 +1,36 @@
+/*
+ * Speech functions
+ *
+ * Copyright (C) 2019  Patrick McDermott
+ *
+ * This file is part of Timeteller.
+ *
+ * Timeteller is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Timeteller is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Timeteller.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef SPEECH_H_
+#define SPEECH_H_
+
+struct speech;
+
+struct speech *
+speech_init(const char *voice);
+
+float
+speech_play_time(const struct speech *speech);
+
+struct speech *
+speech_destroy(struct speech **speech_p);
+
+#endif  /* SPEECH_H_ */