CTAN Update: perfectcut
2.2 04/17: * By default, use the scalerel package instead of the mathstyle package to compute the nested mathstyle. * The option nomathstyle and the command \cutstyle are deprecated. * The option mathstyle is introduced, to use when scalerel is too slow. 2.1 06/15: * the spacing inside cases can be contolled with \cutcasebarskip * corrected a bug where vertical bars would shrink horizontally * corrected the spacing of middle delimiters
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/perfectcut The package’s files themselves can be inspected at http://mirror.ctan.org/macros/latex/contrib/perfectcut/
Thanks for the upload. For the CTAN Team Petra Rübe-Pugliese
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perfectcut – Nested delimiters that consistently grow regardless of the contents
This package defines the command \perfectcut#1#2 which displays a bracket <#1||#2>. Various other delimiters are similarly defined (parentheses, square brackets ...). The effect of these commands is to let the delimiters grow according to the number of nested \perfectcommands (regardless of the size of the contents).
The package was originally intended for solving a notational issue for direct-style continuation calculi in proof theory. For general use, the package also defines commands for defining other sorts of delimiters which will behave in the same way (see example in the documentation). The package also offers a robust reimplementation of \big, \bigg, etc.
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