ConfirmMatch[expr,form]
confirms that expr matches the pattern form, otherwise throwing a Failure to the nearest lexically surrounding Enclose.
ConfirmMatch[expr,form,info]
if expr does not match form, evaluates info and includes the result in the thrown Failure.
ConfirmMatch[expr,form,info,tag]
uses the tag tag for any thrown errors.


ConfirmMatch
ConfirmMatch[expr,form]
confirms that expr matches the pattern form, otherwise throwing a Failure to the nearest lexically surrounding Enclose.
ConfirmMatch[expr,form,info]
if expr does not match form, evaluates info and includes the result in the thrown Failure.
ConfirmMatch[expr,form,info,tag]
uses the tag tag for any thrown errors.
Details


- expr is returned unchanged if it does not represent a error.
- The default value of info is Null.
Related Guides
Text
Wolfram Research (2020), ConfirmMatch, Wolfram Language function, https://reference.wolfram.com/language/ref/ConfirmMatch.html.
CMS
Wolfram Language. 2020. "ConfirmMatch." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/ConfirmMatch.html.
APA
Wolfram Language. (2020). ConfirmMatch. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ConfirmMatch.html
BibTeX
@misc{reference.wolfram_2025_confirmmatch, author="Wolfram Research", title="{ConfirmMatch}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/ConfirmMatch.html}", note=[Accessed: 18-August-2025]}
BibLaTeX
@online{reference.wolfram_2025_confirmmatch, organization={Wolfram Research}, title={ConfirmMatch}, year={2020}, url={https://reference.wolfram.com/language/ref/ConfirmMatch.html}, note=[Accessed: 18-August-2025]}