| VoiceXML 2.1 Development Guide | Home | Frameset Home |
| repeat | Data Type: NMTOKEN | Default: Optional |
| The repeat attribute is an SRGS addition to VWS2.0 that alolows the developer to specify the number of times, if any, that the utterance is allowed to be repeated by the caller. The allowed formats for this attribute are as follows: item repeat="3" The utterance must be repeated 3 times item repeat="2-4" The utterance must be repeated 2 to 4 times item repeat="2-" The utterance must be repeated 2 or more times item repeat="0-3" The utterance is not required to be repeated, but can be repeated for up to 3 times | ||
| repeat-prob | Data Type: NMTOKEN | Default: Optional |
| The repeat-prob attribute allows the developer to specify a probability that an utterance will be repeated by the caller. The value should be a number ranging from '0.0', (least likely to be repeated), to '1.0', (most likely to be repeated). | ||
| weight | Data Type: NMTOKEN | Default: Optional |
| The weight attribute specifies the increased or decreased likelihood for a particular grammar match. For instance, specifying the value as '0.8' would increase the chances that an approximate utterance would be considered a valid grammar match, while a value of '0.2' would make it highly unlikely that a match would ever be considered valid. Note that the parent Item element must be enclosed by the One-Of element, else the grammar weighting is ignored. | ||
| <?xml version="1.0" encoding="UTF-8"?> <vxml version = "2.1"> <meta name="author" content="Matthew Henry"/> <meta name="copyright" content="2005 voxeo corporation"/> <meta name="maintainer" content="YOUR_EMAIL@HERE.COM"/> <form id="F1"> <field name="F_1"> <prompt> What in gods name is that thing on James Trafficants head? Is it a marmot, a stabilizing fin or pile of goat vomit? </prompt> <grammar src="MyItemWeightGrammar.xml" type="application/grammar-xml"/> <filled> <prompt> Say, that guess is as good as any, I suppose. </prompt> </filled> </field> </form> </vxml> |
| <?xml version= "1.0"?> <grammar xmlns="http://www.w3.org/2001/06/grammar" xml:lang="en-US" root = "MYRULE"> <rule id="MYRULE" scope="public"> <one-of> <item> marmot <tag> <![CDATA[ <F_1 "marmot"> ]]> </tag> </item> <item weight="0.0"> goat vomit <tag> <![CDATA[ <F_1 "goat vomit"> ]]> </tag> </item> <item weight="1.0"> stabilizing fin <tag> <![CDATA[ <F_1 "stabilizing fin"> ]]> </tag> </item> </one-of> </rule> </grammar> |
| <?xml version="1.0" encoding="UTF-8"?> <vxml version = "2.1"> <meta name="author" content="Matthew Henry"/> <meta name="copyright" content="2005 voxeo corporation"/> <meta name="maintainer" content="YOUR_EMAIL@HERE.COM"/> <form id="F1"> <field name="F_1"> <prompt> What was Marlon Brandos famous last line in the movie Apocalypse Now? </prompt> <grammar src="MyRepeatGram.xml" type="application/grammar-xml"/> <filled> <prompt>Yes, thats right. The horror.</prompt> </filled> </field> </form> </vxml> |
| <?xml version= "1.0"?> <grammar xmlns="http://www.w3.org/2001/06/grammar" xml:lang="en-US" root = "MYRULE"> <rule id="MYRULE" scope="public"> <one-of lang-list="en-US"> <item repeat="0-2" repeat-prob="0.6"> the horror </item> <item repeat="2"> nanoo </item> <item repeat-prob="0.0" repeat="0-1"> machines are gonna fail, lewis </item> </one-of> </rule> </grammar> |
| ANNOTATIONS: EXISTING POSTS |
hstclair
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| I suggest that you replace the text:
item repeat="3" The utterance must be repeated 3 times item repeat="2-4" The utterance must be repeated 2 to 4 times item repeat="2-" The utterance must be repeated 2 or more times item repeat="0-3" The utterance is not required to be repeated, but can be repeated for up to 3 times with: item repeat="3" The utterance must be spoken 3 times item repeat="2-4" The utterance must be spoken 2 to 4 times item repeat="2-" The utterance must be spoken 2 or more times item repeat="0-3" The utterance is not required, but may be spoken up to 3 times Admittedly, it's a minor point but I think that it might help others down the road. I remember experiencing some uncertainty about how to interpret the 'repeat' count and whether it could be used to make an item optional when I first read this page. |
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mikethompson
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| Hey Hal,
I must admit, your rendition of the repeat="0-3" row is a bit more clear. I will let our keepers of the doucmentation know about the ambiguity of the current statement. Best, Mike Thompson Voxeo Corporation |
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mtatum111
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| In preparing for my certification test, I have been presented the following practice question
1. Which grammar rule accepts the following input and produces the indicated output? The answer here is C. However, I was told that D will also work. I am a little confused about D working because we have the following <item repeat = "0-1"> the </item>. It was my understanding that when we have this and the caller speaks "the" then it will be returned as the text output. Am I missing something here. For instance, if the caller says "Raise the Volume" then according to D, I would have thought the text output would be "Raise the Volume" and not "Raise Volume" Thanks for any input Spoken Input Text Output Raise volume Raise volume Raise the volume Raise volume Lower volume Lower volume Lower the volume Lower volume Raise air Raise air Raise the air Raise air Lower air Lower air Lower the air Lower air <rule id = "direction"> <one-of> <item> Raise</item> <item> Lower </item> <one-of> </rule> <rule id = "control"> <one-of> <item> volume</item> <item> air </item> <one-of> </rule> A. <rule id = "spoken_commands"> <ruleref uri = "#direction"/> <ruleref uri = "#control"/> </rule> B. <rule id = "spoken_commands"> <ruleref uri = "#direction"/> <item> the </item> <ruleref uri = "#control"/> </rule> C. <rule id = "spoken_commands"> <ruleref uri = "#direction"/> <ruleref special = "GARBAGE"/> <ruleref uri = "#control"/> </rule> D. <rule id = "spoken_commands"> <ruleref uri = "#direction"/> <item repeat = "0-1"> the </item> <ruleref uri = "#control"/> </rule> |
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VoxeoDustin
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| Hey Melissa,
You are correct. In this instance, option D will return 'the' as part of the interpretation if it is spoken. The GARBAGE rule in C will not return any value in the interpretation. Cheers, Dustin |
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