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Previously, if 'calc-string-maximum-character' wasn't a valid character 'math-vector-is-string' would throw an error in the comparison, leading to an incomplete display of the stack and a cryptic error message. Instead, have 'math-vector-is-string' return nil, which effectively disables the display of strings. Refines feature introduced in bug#78528. * doc/misc/calc.texi (Customizing Calc): Update description of behavior for invalid 'calc-string-maximum-character'. * lisp/calc/calccomp.el (math-vector-is-string): Return nil when 'calc-string-maximum-character' doesn't represent a character. * test/lisp/calc/calc-tests.el (calc-math-vector-is-string): Correct and simplify tests. |
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