session:getDigits is a whole different function that uses the callback functions for you to control what happens yourself you set an input callback call session:getDigits and catch the input yourself.<br><br><br><div class="gmail_quote">
On Fri, Nov 27, 2009 at 2:12 PM, Peter Volchek <span dir="ltr"><<a href="mailto:pvolchek@voicemobility.com">pvolchek@voicemobility.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000">
<tt>No, <br>
I am playing a prompt, which I do not want to interrupt. Once prompt
done playing I flush the digits and start collecting.<br>
<br>
Here is the simple scenario:<br>
<br>
play ("Enter your credit card# or hit * to return to the previous
menu") -- not interruptable<br>
</tt><tt>session:</tt><tt>flushDigits()<br>
digits=session:getDigits(16, "[#*]", 3000)<br>
<br>
At this point I need to take the decision to continue processing.<br>
<br>
Choices<br>
1. All digits are entered -> go process<br>
2. Some digits were entered and terminated by # -> go process<br>
3. Some digits were entered but timeout occurred -> go process<br>
4. Some or none digits were entered terminated by * -> go previous
menu<br>
5. No digits were entered and timeout occurred -> play prompt (are
you still there and start over, 3 times)<br>
6. No digits were entered and # was pressed -> play error prompt and
start over (3 times)<br>
<br>
Unfortunately, I cannot implement all these scenarios as the result
variables are not set (as it is done at playAndGetDigits).<br>
I also noticed that session:read might not set these variables too<br>
<br>
</tt><br>
Anthony Minessale wrote:
<blockquote type="cite"><div><div></div><div class="h5">are you mixing getDigits with playAndGetDigits?<br>
<br>
<br>
<div class="gmail_quote">On Fri, Nov 27, 2009 at 11:52 AM, Peter
Volchek <span dir="ltr"><<a href="mailto:pvolchek@voicemobility.com" target="_blank">pvolchek@voicemobility.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000">
<tt>Hi,<br>
Now I am using lua's session:getDigits function, and it seems that
"read_result" and "</tt>read_terminator_used<tt>" are not set at all.<br>
Besides, lua's implementation of this function accept only three
parameters( lenght, terminator and timeout),<br>
however, some other modules allow more parameters (</tt><a href="http://wiki.freeswitch.org/wiki/Session_getDigits" target="_blank">http://wiki.freeswitch.org/wiki/Session_getDigits</a>)<br>
Why is that?
<div><br>
<br>
Cheers,<br>
Peter<br>
<br>
<tt><br>
</tt><br>
Anthony Minessale wrote:
</div>
<blockquote type="cite">
<div>
<div>We have such a variable called "read_result"<br>
possible vals: success, timeout, failure<br>
<br>
"read_terminator_used" contains the terminator<br>
<br>
<br>
<div class="gmail_quote">On Tue, Nov 3, 2009 at 2:20 PM, Peter
Volchek <span dir="ltr"><<a href="mailto:pvolchek@voicemobility.com" target="_blank">pvolchek@voicemobility.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi,<br>
I am having some troubles adopting [session:playAndGetDigits] function<br>
to my application needs.<br>
<br>
There are three possible outcomes that the function should report on:<br>
1. Success. The required number of of digits was collected and they<br>
match the mask.<br>
2. Fail 1.The entered digits do not match the mask<br>
3. Fail2. Timeout failure<br>
<br>
Right now, I cannot distinguish between 2 & 3. In both cases, an
empty<br>
string is returned, so I have no idea what was the real failure.<br>
<br>
4. Success upon termination<br>
That is a tricky one, and I believe, there is a bug in this function.<br>
This function accept the terminators, which should stop digits
collection.<br>
Consider the following function call:<br>
<br>
digits = session:playAndGetDigits(<br>
0, 5, 1, 3000, "#",<br>
"enter_mailbox_number_or_hit_pound_to_login.wav",<br>
"error.wav",<br>
"\\d*"<br>
);<br>
<br>
<br>
Here, I want to collect up to 5 digits, that represent a mailbox number.<br>
Note that I set the minimum value to be 0, as I want "#" itself to be<br>
the sign, that I want to login to my system.<br>
However, when I execute this code and hit "#" immediately, the system<br>
play me an error message. Oops! Well, I changed my digits mask to be<br>
"#", and it did not help either.<br>
BTW, about the last case. If I my digits mask contains the symbol used<br>
in the terminators, then it has to be collected and returned. The<br>
current implementation just uses terminates the collection and does not<br>
include the terminator to the returned string.<br>
<br>
Possible solutions to determine the function's outcome:<br>
1. Return multiple values (state, digits). That may break tons of the<br>
existing code<br>
2. Set a channel (or session) variable. Similar to C's errno and define<br>
some variables defining the outcome. Below is a summary table that<br>
covers all the cases:<br>
<br>
------------------------------------------------------<br>
ERRNO | Description<br>
------------------------------------------------------<br>
RET_OK | Maximum number of digits was collected or<br>
| terminated when in range [min_digits..max_digits-1]<br>
| or timeout triggered after collecting enough digits<br>
[min_digits..max_digits-1].<br>
| The collected digits match digits_regex<br>
| Returns the collected digits<br>
<br>
RET_TERM | Terminating before collecting enough digits or when<br>
| the collected digits do not match digits_regex<br>
| Return whatever was collected (for logging)<br>
<br>
<br>
RET_TIMEOUT | Did not collect enough digits for the time specified or
when<br>
| the collected digits do not match digits_regex<br>
| Return whatever was collected (for logging)<br>
<br>
<br>
Does it all make sense?<br>
Cheers,<br>
PV<br>
<br>
<br>
<br>
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<br>
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