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.
This commit is contained in:
Fredrik Fornwall 2016-04-20 00:52:22 +02:00
parent 9043ae1c06
commit 3b43db5d96

View File

@ -1,33 +1,43 @@
#!/bin/sh #!/bin/sh
set -e -u
set -u SCRIPTNAME=termux-tts-speak
show_usage () {
echo "Usage: $SCRIPTNAME [OPTIONS] <text-to-speak>"
echo "Speak stdin input with a system text-to-speech (TTS) engine."
echo ""
echo " -e <engine> TTS engine to use (see 'termux-tts-engines')"
echo " -l <language> language to speak in (may be unsupported by the engine)"
echo " -p <pitch> pitch to use in speech. 1.0 is the normal pitch,"
echo " lower values lower the tone of the synthesized voice,"
echo " greater values increase it."
echo " -r <rate> speech rate to use. 1.0 is the normal speech rate,"
echo " lower values slow down the speech (0.5 is half the normal speech rate),"
echo " greater values accelerate it ({@code 2.0} is twice the normal speech rate)."
echo ""
echo "The text to send can be specified either as arguments or on stdin if no arguments are given."
exit 0
}
PARAMS="" PARAMS=""
show_usage () { while getopts :he:l:p:r: option
echo "usage: termux-tts-speak [OPTIONS]" do
echo "" case "$option" in
echo "Speak stdin input with a system text-to-speech (TTS) engine." h) show_usage;;
echo "Find out about available engines by executing 'termux-tts-engines'." e) PARAMS="$PARAMS --es engine $OPTARG";;
echo " -e, --engine <engine> TTS engine to use" l) PARAMS="$PARAMS --es language $OPTARG";;
echo " -l, --language <language> language to speak in (may be unsupported by the engine)" p) PARAMS="$PARAMS --ef pitch $OPTARG";;
echo " -p, --pitch <pitch> pitch to use in speech" r) PARAMS="$PARAMS --ef rate $OPTARG";;
echo " -r, --rate <rate> rate to use in speech" ?) echo "$SCRIPTNAME: illegal option -$OPTARG"; exit 1;
}
O=`busybox getopt -q -l engine: -l help -l language: -l pitch: -l rate: -- e:hl:p:r: "$@"`
if [ $? != 0 ] ; then show_usage; exit 1 ; fi
eval set -- "$O"
while true; do
case "$1" in
-e|--engine) PARAMS="$PARAMS --es engine $2"; shift 2;;
-l|--language) PARAMS="$PARAMS --es language $2"; shift 2;;
-p|--pitch) PARAMS="$PARAMS --ef pitch $2"; shift 2;;
-r|--rate) PARAMS="$PARAMS --ef rate $2"; shift 2;;
-h|--help) show_usage; exit 0;;
--) shift; break;;
*) echo Error; exit 1;;
esac esac
done done
shift $(($OPTIND-1))
CMD="@TERMUX_API@ TextToSpeech $PARAMS"
if [ $# = 0 ]; then
$CMD
else
echo $@ | $CMD
fi
@TERMUX_API@ TextToSpeech $PARAMS