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|
" Mappings for changing the case type of a text object. These mappings are invoked with <C-c>.
"
" This way, to change the case format of a word to snake_case, one can run:
"
" <C-c>siw
"
" the format of this command is
"
" <C-c>[j]<target_casefmt><text_object>
"
" if the j is included the text object is joined using the case format.
"
" valid case formats are
"
" s - snake_case
" S - Upper_Snake_Case
" c - camelCase
" C - UpperCamelCase
" k - KONSTANT_CASE
" K - KONSTANT CASE (toupper(title case))
" t - title case
" T - Title Case
" - - dashed-case
" u - lowercase
" U - UPPERCASE
if ! exists('g:casefmt_include_bindings')
let g:casefmt_include_bindings = 1
endif
if ! exists('g:casefmt_leader')
let g:casefmt_leader = '<C-c>'
endif
let s:case_fmts = {
\ 's': 'to_snake',
\ '_': 'to_snake',
\ 'S': 'to_Snake',
\ 'c': 'to_camel',
\ 'C': 'to_Camel',
\ 'k': 'to_CONSTANT',
\ 'K': 'to_CONSTANT_space',
\ 't': 'to_title',
\ 'T': 'to_Title',
\ '-': 'to_dashed',
\ 'u': 'to_lower',
\ 'U': 'to_upper'
\ }
function! CaseFmt_AddFormat(key, funcname) abort
exec printf("noremap <silent> <Plug>(casefmt-leader-no-set)%s "
\ . "<cmd>let g:CaseFmtFunction=function(\"\<SID>%s\")<cr>"
\ . "<cmd>set operatorfunc=\<SID>casefmt_do<cr>g@", a:key, a:funcname)
endfunction
noremap <silent> <Plug>(casefmt-leader) <cmd>let g:CaseFmtProcessor=function("<SID>casefmt_default_processor")<cr><Plug>(casefmt-leader-no-set)
for [k, v] in items(s:case_fmts)
call CaseFmt_AddFormat(k, v)
endfor
if g:casefmt_include_bindings
exec printf("nmap <silent> %s <Plug>(casefmt-leader)", g:casefmt_leader)
exec printf("vmap <silent> %s <Plug>(casefmt-leader)", g:casefmt_leader)
endif
noremap <silent> <Plug>(casefmt-leader)j <cmd>let g:CaseFmtProcessor=function("<SID>casefmt_joiner")<cr><Plug>(casefmt-leader-no-set)
function! s:casefmt_do(type, ...) abort
let cb = {}
if !exists('g:CaseFmtProcessor')
let g:CaseFmtProcessor = function("\<SID>casefmt_default_processor")
endif
let cb.operate = g:CaseFmtProcessor
call fieldmarshal#modifytext(a:type, cb)
normal! ``
endfunction
" Default processor. Calls change case fmt on each word.
function! s:casefmt_default_processor(yanked, type)
let changed = []
for n in a:yanked
let split = split(n, '\<\|\>') " Split by word boundaries
let new_split = []
for s in split " Iterate by words.
if s =~ "[a-zA-Z_0-9]*" " Is s an identifier?
call add(new_split, g:CaseFmtFunction(s:normalize(s)))
else
call add(new_split, s)
endif
endfor
call add(changed, join(new_split, ''))
endfor
return changed
endfunction
function! s:casefmt_joiner(yanked, type) abort
let changed = []
for n in a:yanked
call add(changed, g:CaseFmtFunction(tolower(substitute(n, '\s\+', '_', 'g'))))
endfor
return changed
endfunction
" snake_case is the platonic form that all other forms build from. This function
" tries to be SmartAboutDetecting_the current case format and converting it
" properly.
function! s:normalize(s) abort
if a:s =~ '[a-z][A-Z]'
" a:s has a camel case boundary in it.
return tolower(substitute(a:s, '\%([a-zA-Z]\)\zs\ze\([A-Z0-9]\)', '_', "g"))
endif
return tolower(a:s)
endfunction
function! s:to_snake(s) abort
return a:s
endfunction
function! s:to_Snake(s) abort
return substitute(a:s, '\%(_\|\<\)\zs\w\ze', '\u\0', 'g')
endfunction
function! s:to_camel(s) abort
return substitute(a:s, '_\([a-z]\)', '\u\1', "g")
endfunction
function! s:to_Camel(s) abort
return substitute(s:to_camel(a:s), '\<\w', '\u\0', 'g')
endfunction
function! s:to_CONSTANT(s) abort
return toupper(a:s)
endfunction
function! s:to_CONSTANT_space(s) abort
return toupper(s:to_title(a:s))
endfunction
function! s:to_title(s) abort
return substitute(a:s, '_', ' ', 'g')
endfunction
function! s:to_Title(s) abort
return substitute(s:to_title(a:s), '\<[a-z]', '\u\0', 'g')
endfunction
function! s:to_lower(s) abort
return tolower(substitute(a:s, '_', '', 'g'))
endfunction
function! s:to_upper(s) abort
return toupper(substitute(a:s, '_', '', 'g'))
endfunction
function! s:to_dashed(s) abort
return substitute(a:s, '_', '-', 'g')
endfunction
" Replaces "search" with "replace" across a given range, but rather than replace
" verbatim, replace respecting the case format given.
function! s:case_substitute(start, end, search, replace, ...)
if a:0 > 1
throw "Command takes either 2 or 3 arguments!"
endif
let flags = a:0 == 1 ? a:1 : 'cCksS'
for c in flags
if ! has_key(s:case_fmts, c)
throw "Unknown case format: " . c
endif
endfor
let search_norm = s:normalize(a:search)
let replace_norm = s:normalize(a:replace)
for c in flags
let l:Func = function("\<SID>" . s:case_fmts[c])
exec printf("silent! %d,%ds/\\V%s/%s/g", a:start, a:end, l:Func(escape(search_norm, '\')), l:Func(escape(replace_norm, '\')))
endfor
endfunction
" CaseSubstitute command.
"
" [range] CaseSubstitute <search> <replace> [flags]
"
" This command acts similarly to substitute, except it respects the case format
" of what it is trying to replace. For example:
"
" Running
"
" CaseSubstitute TestThing DoThing
"
" on
"
" TestThing DoThing
" testThing doThing
" test_thing -> do_thing
" Test_Thing Do_Thing
" TEST_THING DO_THING
"
" flags contain the case formats to replace. Default is 'cCksS' for:
"
" [c]amelCase
" [C]amelCase
" [k]ONSTANT_CASE
" [s]nake_case
" [S]nake_Case
"
" does not include
"
" [T]itle Case
" [t]itle case
" [K]ONSTANT CASE
" [-]dashed-case
" [U]PPERCASE
" [u]lowercase
command! -range -nargs=+ CaseSubstitute
\ call <SID>case_substitute(<line1>, <line2>, <f-args>)
|
