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Update runtime files Commit: https://github.com/vim/vim/commit/fa3b72348d88343390fbe212cfc230fec1602fc2 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Dec 24 13:18:38 2021 +0000 Update runtime files
author Bram Moolenaar <Bram@vim.org>
date Fri, 24 Dec 2021 14:30:04 +0100
parents c725b8e17f1f
children 3e661b0cf500
comparison
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26707:d1af15dbf206 26708:f0d7cb510ce3
4504 As can be seen here, the \z actually does double duty. In the start pattern, 4504 As can be seen here, the \z actually does double duty. In the start pattern,
4505 it marks the "\(\I\i*\)" sub-expression as external; in the end pattern, it 4505 it marks the "\(\I\i*\)" sub-expression as external; in the end pattern, it
4506 changes the \z1 back-reference into an external reference referring to the 4506 changes the \z1 back-reference into an external reference referring to the
4507 first external sub-expression in the start pattern. External references can 4507 first external sub-expression in the start pattern. External references can
4508 also be used in skip patterns: > 4508 also be used in skip patterns: >
4509 :syn region foo start="start \(\I\i*\)" skip="not end \z1" end="end \z1" 4509 :syn region foo start="start \z(\I\i*\)" skip="not end \z1" end="end \z1"
4510 4510
4511 Note that normal and external sub-expressions are completely orthogonal and 4511 Note that normal and external sub-expressions are completely orthogonal and
4512 indexed separately; for instance, if the pattern "\z(..\)\(..\)" is applied 4512 indexed separately; for instance, if the pattern "\z(..\)\(..\)" is applied
4513 to the string "aabb", then \1 will refer to "bb" and \z1 will refer to "aa". 4513 to the string "aabb", then \1 will refer to "bb" and \z1 will refer to "aa".
4514 Note also that external sub-expressions cannot be accessed as back-references 4514 Note also that external sub-expressions cannot be accessed as back-references