$SyntaxHandler

$SyntaxHandler

is a global variable that, if set, is applied to any input string that is found to contain a syntax error.

Details

  • The arguments given to $SyntaxHandler are the complete input string and an integer specifying the character position at which the syntax error was detected.
  • The first character in the string is taken to have position 1.
  • Any string returned by $SyntaxHandler is used as a new version of the input string and is fed to the Wolfram Language. If the string does not end with a newline, the Wolfram Language waits for input to complete the line.
  • If $SyntaxHandler returns $Failed, input to the Wolfram Language is abandoned if possible.
  • Input is not assigned to InString[n] until after $SyntaxHandler is applied.
  • $SyntaxHandler is not called for input from files obtained using Get.
Wolfram Research (1991), $SyntaxHandler, Wolfram Language function, https://reference.wolfram.com/language/ref/$SyntaxHandler.html.

Text

Wolfram Research (1991), $SyntaxHandler, Wolfram Language function, https://reference.wolfram.com/language/ref/$SyntaxHandler.html.

CMS

Wolfram Language. 1991. "$SyntaxHandler." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/$SyntaxHandler.html.

APA

Wolfram Language. (1991). $SyntaxHandler. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$SyntaxHandler.html

BibTeX

@misc{reference.wolfram_2025_$syntaxhandler, author="Wolfram Research", title="{$SyntaxHandler}", year="1991", howpublished="\url{https://reference.wolfram.com/language/ref/$SyntaxHandler.html}", note=[Accessed: 26-April-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_$syntaxhandler, organization={Wolfram Research}, title={$SyntaxHandler}, year={1991}, url={https://reference.wolfram.com/language/ref/$SyntaxHandler.html}, note=[Accessed: 26-April-2025 ]}