configfiles/vim/.vim/t/parser.vim
2015-10-15 22:38:56 +02:00

116 lines
3.9 KiB
VimL

describe 'snippet parser'
before
function! Parse(snippet, ...)
let [snip, stops] = snipmate#parse#snippet(a:snippet)
return a:0 ? [snip, stops] : snip
endfunction
let b:snipmate_visual = 'testvisual'
end
it 'parses numeric $id and ${id} vars as [id] lists'
let expect = [[1234567890]]
Expect Parse('$1234567890') == expect
Expect Parse('${1234567890}') == expect
end
it 'disregards $ or ${ followed by a non-id'
Expect Parse('$x1') == ['x1']
Expect Parse('${x}1') == ['x}1']
Expect Parse('$VISUA1') == ['VISUA1']
Expect Parse('${VISUA}1') == ['VISUA}1']
end
it 'gathers references to each instance of each stop id'
let [snip, b:stops] = Parse('x$1x${2:x$1x}x$1x${1/a/b}x$VISUALx', 1)
function! InstanceFound(list)
return !empty(filter(copy(b:stops[a:list[0]].instances),
\ 'v:val is a:list'))
endfunction
function! CheckList(list)
for item in a:list
if type(item) == type([])
Expect InstanceFound(item) to_be_true
call CheckList(item)
endif
unlet item " E732
endfor
endfunction
call CheckList(snip)
end
it 'parses mirror substitutions ${n/pat/sub} as [n, {...}]'
let expect = [[1, { 'pat' : 'abc', 'sub' : 'def' }]]
Expect Parse('${1/abc/def}') == expect
let expect[0][1].flags = ''
Expect Parse('${1/abc/def/}') == expect
let expect[0][1].flags = 'g'
Expect Parse('${1/abc/def/g}') == expect
end
it 'parses vars with placeholders as [id, placeholder] lists'
Expect Parse('${1:abc}') == [[1, 'abc']]
end
it 'evaluates backtick expressions'
Expect Parse('`fnamemodify("x.y", ":r")`') == ['x']
end
it 'parses placeholders for vars and other specials'
let text = 'a `fnamemodify("x.y", ":r")` ${2:(${3/a/b})}'
let expect = ['a x ', [2, '(', [3, { 'pat' : 'a', 'sub' : 'b' }], ')']]
Expect Parse(text) == expect
Expect Parse(printf('${1:%s}', text)) == [[1] + expect]
end
it 'converts tabs according to &et, &sts, &sw'
" &noet -> leave tabs alone
setl noet
Expect Parse("abc\tdef\n\t\tghi") == ["abc\tdef", "\t\tghi"]
" &et -> &sts or &sw
setl et sts=2 sw=3
Expect Parse("abc\tdef\n\t\tghi") == ["abc def", " ghi"]
setl et sts=0 sw=3
Expect Parse("abc\tdef\n\t\tghi") == ["abc def", " ghi"]
setl et sts=-1 sw=3
Expect Parse("abc\tdef\n\t\tghi") == ["abc def", " ghi"]
end
it 'parses backslashes as escaping the next character or joining lines'
Expect Parse('x\x') == ['xx']
Expect Parse('x\\x') == ['x\x']
Expect Parse("x\\\nx") == ['xx']
Expect Parse('x\$1') == ['x$1']
Expect Parse('${1:\}}') == [[1, '}']]
Expect Parse('${1/\//\}}') == [[1, { 'pat' : '/', 'sub' : '}' }]]
Expect Parse('`fnamemodify("\`.x", ":r")`') == ['`']
Expect Parse('\`x\`') == ['`x`']
end
it 'splits text at newlines'
Expect Parse("x\nx") == ['x', 'x']
end
it 'joins evaluated expressions to surrounding text on the same line'
let g:foo = 'bar'
Expect Parse("x`g:foo`x") == ['xbarx']
Expect Parse("x`g:foo`\nx") == ['xbar', 'x']
Expect Parse("x\n`g:foo`x") == ['x', 'barx']
end
it 'adds empty strings before/after vars if at the start/end of a line'
Expect Parse("x$1\nx") == ['x', [1], '', 'x']
Expect Parse("x\n$1x") == ['x', '', [1], 'x']
end
it 'expands $VISUAL placeholders with any indents'
Expect Parse("x$VISUALx") == ['xtestvisualx']
let b:snipmate_visual = " foo\nbar\n baz"
setl noet
Expect Parse("\tx\n\t$VISUAL\nx") == ["\tx", "\t foo", "\tbar", "\t baz", "x"]
end
end