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rust-node: binary Node ID and conversion utilities...
rust-node: binary Node ID and conversion utilities The choice of type makes sure that a `Node` has the exact wanted size. We'll use a different type for prefixes. Added dependency: hexadecimal conversion relies on the `hex` crate. The fact that sooner or later Mercurial is going to need to change its hash sizes has been taken strongly in consideration: - the hash length is a constant, but that is not directly exposed to callers. Changing the value of that constant is the only thing to do to change the hash length (even in unit tests) - the code could be adapted to support several sizes of hashes, if that turned out to be useful. To that effect, only the size of a given `Node` is exposed in the public API. - callers not involved in initial computation, I/O and FFI are able to operate without a priori assumptions on the hash size. The traits `FromHex` and `ToHex` have not been directly implemented, so that the doc-comments explaining these restrictions would stay really visible in `cargo doc` Differential Revision: https://phab.mercurial-scm.org/D7788

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hgtest.vim
42 lines | 1.4 KiB | text/x-vim | VimLexer
" Vim syntax file
" Language: Mercurial unified tests
" Author: Steve Losh (steve@stevelosh.com)
"
" Place this file in ~/.vim/syntax/ and add the following line to your
" ~/.vimrc to enable:
" au BufNewFile,BufRead *.t set filetype=hgtest
"
" If you want folding you'll need the following line as well:
" let hgtest_fold=1
"
" You might also want to set the starting foldlevel for hgtest files:
" autocmd Syntax hgtest setlocal foldlevel=1
if exists("b:current_syntax")
finish
endif
syn include @Shell syntax/sh.vim
syn match hgtestComment /^[^ ].*$/
syn region hgtestOutput start=/^ [^$>]/ start=/^ $/ end=/\v.(\n\n*[^ ])\@=/me=s end=/^ [$>]/me=e-3 end=/^$/ fold containedin=hgtestBlock
syn match hgtestCommandStart /^ \$ / containedin=hgtestCommand
syn region hgtestCommand start=/^ \$ /hs=s+4,rs=s+4 end=/^ [^>]/me=e-3 end=/^ $/me=e-2 containedin=hgtestBlock contains=@Shell keepend
syn region hgtestBlock start=/^ /ms=e-2 end=/\v.(\n\n*[^ ])\@=/me=s end=/^$/me=e-1 fold keepend
hi link hgtestCommandStart Keyword
hi link hgtestComment Normal
hi link hgtestOutput Comment
if exists("hgtest_fold")
setlocal foldmethod=syntax
endif
syn sync match hgtestSync grouphere NONE "^$"
syn sync maxlines=200
" It's okay to set tab settings here, because an indent of two spaces is specified
" by the file format.
setlocal tabstop=2 softtabstop=2 shiftwidth=2 expandtab
let b:current_syntax = "hgtest"