termux-packages/packages/termux-api/termux-tts-speak
Fredrik Fornwall 3b43db5d96 termux-tts-speak: Cleanup
- Make it possible to specify text to speak either as argument or
  on stdin.
- Use proper option parsing and validation.
- Document options better.
2016-04-20 00:52:22 +02:00

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#!/bin/sh
set -e -u
SCRIPTNAME=termux-tts-speak
show_usage () {
echo "Usage: $SCRIPTNAME [OPTIONS] <text-to-speak>"
echo "Speak stdin input with a system text-to-speech (TTS) engine."
echo ""
echo " -e <engine> TTS engine to use (see 'termux-tts-engines')"
echo " -l <language> language to speak in (may be unsupported by the engine)"
echo " -p <pitch> pitch to use in speech. 1.0 is the normal pitch,"
echo " lower values lower the tone of the synthesized voice,"
echo " greater values increase it."
echo " -r <rate> speech rate to use. 1.0 is the normal speech rate,"
echo " lower values slow down the speech (0.5 is half the normal speech rate),"
echo " greater values accelerate it ({@code 2.0} is twice the normal speech rate)."
echo ""
echo "The text to send can be specified either as arguments or on stdin if no arguments are given."
exit 0
}
PARAMS=""
while getopts :he:l:p:r: option
do
case "$option" in
h) show_usage;;
e) PARAMS="$PARAMS --es engine $OPTARG";;
l) PARAMS="$PARAMS --es language $OPTARG";;
p) PARAMS="$PARAMS --ef pitch $OPTARG";;
r) PARAMS="$PARAMS --ef rate $OPTARG";;
?) echo "$SCRIPTNAME: illegal option -$OPTARG"; exit 1;
esac
done
shift $(($OPTIND-1))
CMD="@TERMUX_API@ TextToSpeech $PARAMS"
if [ $# = 0 ]; then
$CMD
else
echo $@ | $CMD
fi