Support for :perl, :perlfile, :perldo and perleval() (#12809)

* support for :perl, :perlfile, :perldo and perleval()

* document that the perl provider doesn't currently work on Windows

* document that the perl legacy interface is now also supported

* added perleval() documentation

* import legacy perl interface tests

* only perl 5.22+ is supported

* healtcheck: use g:perl_host_prog if its set instead

using just 'perl' isn't correct as it may not be the version requested.
ditto for 'cpanm', rather go through 'App::cpanminus' to find the latest
perl version
This commit is contained in:
Justin M. Keyes 2020-09-05 13:55:06 -07:00 committed by GitHub
commit 858c056133
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GPG Key ID: 4AEE18F83AFDEB23
15 changed files with 645 additions and 32 deletions

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@ -689,29 +689,31 @@ function! s:check_perl() abort
return
endif
if !executable('perl') || !executable('cpanm')
call health#report_warn(
\ '`perl` and `cpanm` must be in $PATH.',
\ ['Install Perl and cpanminus and verify that `perl` and `cpanm` commands work.'])
return
let [perl_exec, perl_errors] = provider#perl#Detect()
if empty(perl_exec)
if !empty(perl_errors)
call health#report_error('perl provider error:', perl_errors)
else
call health#report_warn('No usable perl executable found')
endif
return
endif
let perl_v = get(split(s:system(['perl', '-W', '-e', 'print $^V']), "\n"), 0, '')
call health#report_info('Perl: '. perl_v)
call health#report_info('perl executable: '. perl_exec)
" we cannot use cpanm that is on the path, as it may not be for the perl
" set with g:perl_host_prog
call s:system([perl_exec, '-W', '-MApp::cpanminus', '-e', ''])
if s:shell_error
call health#report_warn('Nvim perl host does not support '.perl_v)
" Skip further checks, they are nonsense if perl is too old.
return
return [perl_exec, '"App::cpanminus" module is not installed']
endif
let host = provider#perl#Detect()
if empty(host)
call health#report_warn('Missing "Neovim::Ext" cpan module.',
\ ['Run in shell: cpanm Neovim::Ext'])
return
endif
call health#report_info('Nvim perl host: '. host)
let latest_cpan_cmd = [perl_exec,
\ '-MApp::cpanminus::fatscript', '-e',
\ 'my $app = App::cpanminus::script->new;
\ $app->parse_options ("--info", "-q", "Neovim::Ext");
\ exit $app->doit']
let latest_cpan_cmd = 'cpanm --info -q Neovim::Ext'
let latest_cpan = s:system(latest_cpan_cmd)
if s:shell_error || empty(latest_cpan)
call health#report_error('Failed to run: '. latest_cpan_cmd,
@ -735,7 +737,7 @@ function! s:check_perl() abort
return
endif
let current_cpan_cmd = [host, '-W', '-MNeovim::Ext', '-e', 'print $Neovim::Ext::VERSION']
let current_cpan_cmd = [perl_exec, '-W', '-MNeovim::Ext', '-e', 'print $Neovim::Ext::VERSION']
let current_cpan = s:system(current_cpan_cmd)
if s:shell_error
call health#report_error('Failed to run: '. string(current_cpan_cmd),

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@ -5,15 +5,25 @@ endif
let s:loaded_perl_provider = 1
function! provider#perl#Detect() abort
" use g:perl_host_prof if set or check if perl is on the path
" use g:perl_host_prog if set or check if perl is on the path
let prog = exepath(get(g:, 'perl_host_prog', 'perl'))
if empty(prog)
return ''
return ['', '']
endif
" if perl is available, make sure we have 5.22+
call system([prog, '-e', 'use v5.22'])
if v:shell_error
return ['', 'Perl version is too old, 5.22+ required']
endif
" if perl is available, make sure the required module is available
call system([prog, '-W', '-MNeovim::Ext', '-e', ''])
return v:shell_error ? '' : prog
if v:shell_error
return ['', '"Neovim::Ext" cpan module is not installed']
endif
return [prog, '']
endfunction
function! provider#perl#Prog() abort
@ -46,7 +56,7 @@ function! provider#perl#Call(method, args) abort
if !exists('s:host')
try
let s:host = remote#host#Require('perl')
let s:host = remote#host#Require('legacy-perl-provider')
catch
let s:err = v:exception
echohl WarningMsg
@ -58,12 +68,16 @@ function! provider#perl#Call(method, args) abort
return call('rpcrequest', insert(insert(a:args, 'perl_'.a:method), s:host))
endfunction
let s:err = ''
let s:prog = provider#perl#Detect()
let [s:prog, s:err] = provider#perl#Detect()
let g:loaded_perl_provider = empty(s:prog) ? 1 : 2
if g:loaded_perl_provider != 2
let s:err = 'Cannot find perl or the required perl module'
endif
call remote#host#RegisterPlugin('perl-provider', 'perl', [])
" The perl provider plugin will run in a separate instance of the perl
" host.
call remote#host#RegisterClone('legacy-perl-provider', 'perl')
call remote#host#RegisterPlugin('legacy-perl-provider', 'ScriptHost.pm', [])

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@ -556,6 +556,7 @@ followed by another Vim command:
:lfdo
:make
:normal
:perlfile
:promptfind
:promptrepl
:pyfile

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@ -2288,6 +2288,7 @@ nr2char({expr}[, {utf8}]) String single char with ASCII/UTF8 value {expr}
nvim_...({args}...) any call nvim |api| functions
or({expr}, {expr}) Number bitwise OR
pathshorten({expr}) String shorten directory names in a path
perleval({expr}) any evaluate |perl| expression
pow({x}, {y}) Float {x} to the power of {y}
prevnonblank({lnum}) Number line nr of non-blank line <= {lnum}
printf({fmt}, {expr1}...) String format text
@ -6423,6 +6424,21 @@ pathshorten({expr}) *pathshorten()*
< ~/.c/n/a/file1.vim ~
It doesn't matter if the path exists or not.
perleval({expr}) *perleval()*
Evaluate |perl| expression {expr} and return its result
converted to Vim data structures.
Numbers and strings are returned as they are (strings are
copied though).
Lists are represented as Vim |List| type.
Dictionaries are represented as Vim |Dictionary| type,
non-string keys result in error.
Note: If you want an array or hash, {expr} must return a
reference to it.
Example: >
:echo perleval('[1 .. 4]')
< [1, 2, 3, 4]
pow({x}, {y}) *pow()*
Return the power of {x} to the exponent {y} as a |Float|.
{x} and {y} must evaluate to a |Float| or a |Number|.

268
runtime/doc/if_perl.txt Normal file
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@ -0,0 +1,268 @@
*if_perl.txt* Nvim
VIM REFERENCE MANUAL by Jacques Germishuys
The perl Interface to Vim *if_perl* *perl*
See |provider-perl| for more information.
Type |gO| to see the table of contents.
==============================================================================
1. Commands *perl-commands*
*:perl*
:[range]perl {stmt}
Execute perl statement {stmt}. The current package is
"main". A simple check if the `:perl` command is
working: >
:perl print "Hello"
:[range]perl << [endmarker]
{script}
{endmarker}
Execute perl script {script}. Useful for including
perl code in Vim scripts. Requires perl, see
|script-here|.
The {endmarker} below the {script} must NOT be preceded by any white space.
If [endmarker] is omitted from after the "<<", a dot '.' must be used after
{script}, like for the |:append| and |:insert| commands.
Example: >
function! MyVimMethod()
perl << EOF
sub my_vim_method
{
print "Hello World!\n";
}
EOF
endfunction
To see what version of perl you have: >
:perl print $^V
<
*:perldo*
:[range]perldo {cmd} Execute perl command {cmd} for each line in the[range],
with $_ being set to the test of each line in turn,
without a trailing <EOL>. In addition to $_, $line and
$linenr is also set to the line content and line number
respectively. Setting $_ will change the text, but note
that it is not possible to add or delete lines using
this command.
The default for [range] is the whole file: "1,$".
Examples:
>
:perldo $_ = reverse($_);
:perldo $_ = "".$linenr." => $line";
One can use `:perldo` in conjunction with `:perl` to filter a range using
perl. For example: >
:perl << EOF
sub perl_vim_string_replace
{
my $line = shift;
my $needle = $vim->eval('@a');
my $replacement = $vim->eval('@b');
$line =~ s/$needle/$replacement/g;
return $line;
}
EOF
:let @a='somevalue'
:let @b='newvalue'
:'<,'>perldo $_ = perl_vim_string_replace($_)
<
*:perlfile*
:[range]perlfile {file}
Execute the perl script in {file}. The whole
argument is used as a single file name.
Both of these commands do essentially the same thing - they execute a piece of
perl code, with the "current range" set to the given line range.
In the case of :perl, the code to execute is in the command-line.
In the case of :perlfile, the code to execute is the contents of the given file.
perl commands cannot be used in the |sandbox|.
To pass arguments you need to set @ARGV explicitly. Example: >
:perl @ARGV = ("foo", "bar");
:perlfile myscript.pl
Here are some examples *perl-examples* >
:perl print "Hello"
:perl $current->line (uc ($current->line))
:perl my $str = $current->buffer->[42]; print "Set \$str to: $str"
Note that changes (such as the "use" statements) persist from one command
to the next.
==============================================================================
2. The VIM module *perl-vim*
Perl code gets all of its access to Neovim via the "VIM" module.
Overview >
print "Hello" # displays a message
VIM::Msg("Hello") # displays a message
VIM::SetOption("ai") # sets a vim option
$nbuf = VIM::Buffers() # returns the number of buffers
@buflist = VIM::Buffers() # returns array of all buffers
$mybuf = (VIM::Buffers('a.c'))[0] # returns buffer object for 'a.c'
@winlist = VIM::Windows() # returns array of all windows
$nwin = VIM::Windows() # returns the number of windows
($success, $v) = VIM::Eval('&path') # $v: option 'path', $success: 1
($success, $v) = VIM::Eval('&xyz') # $v: '' and $success: 0
$v = VIM::Eval('expand("<cfile>")') # expands <cfile>
$curwin->SetHeight(10) # sets the window height
@pos = $curwin->Cursor() # returns (row, col) array
@pos = (10, 10)
$curwin->Cursor(@pos) # sets cursor to @pos
$curwin->Cursor(10,10) # sets cursor to row 10 col 10
$mybuf = $curwin->Buffer() # returns the buffer object for window
$curbuf->Name() # returns buffer name
$curbuf->Number() # returns buffer number
$curbuf->Count() # returns the number of lines
$l = $curbuf->Get(10) # returns line 10
@l = $curbuf->Get(1 .. 5) # returns lines 1 through 5
$curbuf->Delete(10) # deletes line 10
$curbuf->Delete(10, 20) # delete lines 10 through 20
$curbuf->Append(10, "Line") # appends a line
$curbuf->Append(10, "L1", "L2", "L3") # appends 3 lines
@l = ("L1", "L2", "L3")
$curbuf->Append(10, @l) # appends L1, L2 and L3
$curbuf->Set(10, "Line") # replaces line 10
$curbuf->Set(10, "Line1", "Line2") # replaces lines 10 and 11
$curbuf->Set(10, @l) # replaces 3 lines
Module Functions:
*perl-Msg*
VIM::Msg({msg})
Displays the message {msg}.
*perl-SetOption*
VIM::SetOption({arg}) Sets a vim option. {arg} can be any argument that the
":set" command accepts. Note that this means that no
spaces are allowed in the argument! See |:set|.
*perl-Buffers*
VIM::Buffers([{bn}...]) With no arguments, returns a list of all the buffers
in an array context or returns the number of buffers
in a scalar context. For a list of buffer names or
numbers {bn}, returns a list of the buffers matching
{bn}, using the same rules as Vim's internal
|bufname()| function.
WARNING: the list becomes invalid when |:bwipe| is
used.
*perl-Windows*
VIM::Windows([{wn}...]) With no arguments, returns a list of all the windows
in an array context or returns the number of windows
in a scalar context. For a list of window numbers
{wn}, returns a list of the windows with those
numbers.
WARNING: the list becomes invalid when a window is
closed.
*perl-DoCommand*
VIM::DoCommand({cmd}) Executes Ex command {cmd}.
*perl-Eval*
VIM::Eval({expr}) Evaluates {expr} and returns (success, value) in list
context or just value in scalar context.
success=1 indicates that val contains the value of
{expr}; success=0 indicates a failure to evaluate
the expression. '@x' returns the contents of register
x, '&x' returns the value of option x, 'x' returns the
value of internal |variables| x, and '$x' is equivalent
to perl's $ENV{x}. All |functions| accessible from
the command-line are valid for {expr}.
A |List| is turned into a string by joining the items
and inserting line breaks.
==============================================================================
3. VIM::Buffer objects *perl-buffer*
Methods:
*perl-Buffer-Name*
Name() Returns the filename for the Buffer.
*perl-Buffer-Number*
Number() Returns the number of the Buffer.
*perl-Buffer-Count*
Count() Returns the number of lines in the Buffer.
*perl-Buffer-Get*
Get({lnum}, {lnum}?, ...)
Returns a text string of line {lnum} in the Buffer
for each {lnum} specified. An array can be passed
with a list of {lnum}'s specified.
*perl-Buffer-Delete*
Delete({lnum}, {lnum}?)
Deletes line {lnum} in the Buffer. With the second
{lnum}, deletes the range of lines from the first
{lnum} to the second {lnum}.
*perl-Buffer-Append*
Append({lnum}, {line}, {line}?, ...)
Appends each {line} string after Buffer line {lnum}.
The list of {line}s can be an array.
*perl-Buffer-Set*
Set({lnum}, {line}, {line}?, ...)
Replaces one or more Buffer lines with specified
{lines}s, starting at Buffer line {lnum}. The list of
{line}s can be an array. If the arguments are
invalid, replacement does not occur.
==============================================================================
4. VIM::Window objects *perl-window*
Methods:
*perl-Window-SetHeight*
SetHeight({height})
Sets the Window height to {height}, within screen
limits.
*perl-Window-GetCursor*
Cursor({row}?, {col}?)
With no arguments, returns a (row, col) array for the
current cursor position in the Window. With {row} and
{col} arguments, sets the Window's cursor position to
{row} and {col}. Note that {col} is numbered from 0,
Perl-fashion, and thus is one less than the value in
Vim's ruler.
Buffer() *perl-Window-Buffer*
Returns the Buffer object corresponding to the given
Window.
==============================================================================
5. Lexical variables *perl-globals*
There are multiple lexical variables.
$curwin The current Window object.
$curbuf The current Buffer object.
$vim A Neovim::Ext object.
$nvim The same as $nvim.
$current A Neovim::Ext::Current object.
These are also available via the "main" package:
$main::curwin The current Window object.
$main::curbuf The current Buffer object.
==============================================================================
vim:tw=78:ts=8:noet:ft=help:norl:

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@ -1441,6 +1441,9 @@ tag command action ~
|:packloadall| :packl[oadall] load all packages under 'packpath'
|:pclose| :pc[lose] close preview window
|:pedit| :ped[it] edit file in the preview window
|:perl| :perl execute perl command
|:perldo| :perldo execute perl command for each line
|:perfile| :perlfile execute perl script file
|:print| :p[rint] print lines
|:profdel| :profd[el] stop profiling a function or script
|:profile| :prof[ile] profiling functions and scripts

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@ -129,9 +129,13 @@ To use the RVM "system" Ruby installation: >
==============================================================================
Perl integration *provider-perl*
Nvim supports Perl |remote-plugin|s.
Nvim supports Perl |remote-plugin|s on Unix platforms. Support for polling STDIN
on MS-Windows is currently lacking from all known event loop implementations.
The Vim legacy |perl-vim| interface is also supported (which is itself
implemented as a Nvim remote-plugin).
https://github.com/jacquesg/p5-Neovim-Ext
Note: Only perl versions from 5.22 onward are supported.
PERL QUICKSTART~

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@ -408,7 +408,6 @@ Some legacy Vim features are not implemented:
- |if_lua|: Nvim Lua API is not compatible with Vim's "if_lua"
- *if_mzscheme*
- *if_perl*
- |if_py|: *python-bindeval* *python-Function* are not supported
- *if_tcl*

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@ -256,6 +256,7 @@ return {
py3eval={args=1},
pyeval={args=1},
pyxeval={args=1},
perleval={args=1},
range={args={1, 3}},
readdir={args={1, 2}},
readfile={args={1, 3}},

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@ -6374,6 +6374,14 @@ static void f_pyxeval(typval_T *argvars, typval_T *rettv, FunPtr fptr)
}
}
///
/// "perleval()" function
///
static void f_perleval(typval_T *argvars, typval_T *rettv, FunPtr fptr)
{
script_host_eval("perl", argvars, rettv);
}
/*
* "range()" function
*/

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@ -1927,13 +1927,19 @@ return {
command='perl',
flags=bit.bor(RANGE, EXTRA, DFLALL, NEEDARG, SBOXOK, CMDWIN, RESTRICT),
addr_type=ADDR_LINES,
func='ex_script_ni',
func='ex_perl',
},
{
command='perldo',
flags=bit.bor(RANGE, EXTRA, DFLALL, NEEDARG, CMDWIN, RESTRICT),
addr_type=ADDR_LINES,
func='ex_ni',
func='ex_perldo',
},
{
command='perlfile',
flags=bit.bor(RANGE, FILE1, NEEDARG, CMDWIN, RESTRICT),
addr_type=ADDR_LINES,
func='ex_perlfile',
},
{
command='pedit',

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@ -935,6 +935,21 @@ void ex_pydo3(exarg_T *eap)
script_host_do_range("python3", eap);
}
void ex_perl(exarg_T *eap)
{
script_host_execute("perl", eap);
}
void ex_perlfile(exarg_T *eap)
{
script_host_execute_file("perl", eap);
}
void ex_perldo(exarg_T *eap)
{
script_host_do_range("perl", eap);
}
// Command line expansion for :profile.
static enum {
PEXP_SUBCMD, ///< expand :profile sub-commands

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@ -0,0 +1,225 @@
" Tests for Perl interface
if !has('perl') || has('win32')
finish
endif
perl $SIG{__WARN__} = sub { die "Unexpected warnings from perl: @_" };
func Test_change_buffer()
call setline(line('$'), ['1 line 1'])
perl VIM::DoCommand("normal /^1\n")
perl $curline = VIM::Eval("line('.')")
perl $curbuf->Set($curline, "1 changed line 1")
call assert_equal('1 changed line 1', getline('$'))
endfunc
func Test_evaluate_list()
call setline(line('$'), ['2 line 2'])
perl VIM::DoCommand("normal /^2\n")
perl $curline = VIM::Eval("line('.')")
let l = ["abc", "def"]
perl << EOF
$l = VIM::Eval("l");
$curbuf->Append($curline, $l);
EOF
endfunc
funct Test_VIM_Blob()
call assert_equal('0z', perleval('VIM::Blob("")'))
"call assert_equal('0z31326162', 'VIM::Blob("12ab")'->perleval())
call assert_equal('0z00010203', perleval('VIM::Blob("\x00\x01\x02\x03")'))
call assert_equal('0z8081FEFF', perleval('VIM::Blob("\x80\x81\xfe\xff")'))
endfunc
func Test_buffer_Delete()
new
call setline(1, ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'])
perl $curbuf->Delete(7)
perl $curbuf->Delete(2, 5)
perl $curbuf->Delete(10)
call assert_equal(['a', 'f', 'h'], getline(1, '$'))
bwipe!
endfunc
func Test_buffer_Append()
new
perl $curbuf->Append(1, '1')
perl $curbuf->Append(2, '2', '3', '4')
call assert_equal(['', '1', '2', '3', '4'], getline(1, '$'))
perl @l = ('5' ..'7')
perl $curbuf->Append(0, @l)
call assert_equal(['5', '6', '7', '', '1', '2', '3', '4'], getline(1, '$'))
bwipe!
endfunc
func Test_buffer_Set()
new
call setline(1, ['1', '2', '3', '4', '5'])
perl $curbuf->Set(2, 'a', 'b', 'c')
perl $curbuf->Set(4, 'A', 'B', 'C')
call assert_equal(['1', 'a', 'b', 'A', 'B'], getline(1, '$'))
bwipe!
endfunc
func Test_buffer_Get()
new
call setline(1, ['1', '2', '3', '4'])
call assert_equal('2:3', perleval('join(":", $curbuf->Get(2, 3))'))
bwipe!
endfunc
func Test_buffer_Count()
new
call setline(1, ['a', 'b', 'c'])
call assert_equal(3, perleval('$curbuf->Count()'))
bwipe!
endfunc
func Test_buffer_Name()
new
call assert_equal('', perleval('$curbuf->Name()'))
bwipe!
new Xfoo
call assert_equal('Xfoo', perleval('$curbuf->Name()'))
bwipe!
endfunc
func Test_buffer_Number()
call assert_equal(bufnr('%'), perleval('$curbuf->Number()'))
endfunc
func Test_window_Cursor()
new
call setline(1, ['line1', 'line2'])
perl $curwin->Cursor(2, 3)
call assert_equal('2:3', perleval('join(":", $curwin->Cursor())'))
" Col is numbered from 0 in Perl, and from 1 in Vim script.
call assert_equal([0, 2, 4, 0], getpos('.'))
bwipe!
endfunc
func Test_window_SetHeight()
new
perl $curwin->SetHeight(2)
call assert_equal(2, winheight(0))
bwipe!
endfunc
func Test_VIM_Windows()
new
" VIM::Windows() without argument in scalar and list context.
perl $winnr = VIM::Windows()
perl @winlist = VIM::Windows()
perl $curbuf->Append(0, $winnr, scalar(@winlist))
call assert_equal(['2', '2', ''], getline(1, '$'))
"" VIM::Windows() with window number argument.
perl (VIM::Windows(VIM::Eval('winnr()')))[0]->Buffer()->Set(1, 'bar')
call assert_equal('bar', getline(1))
bwipe!
endfunc
func Test_VIM_Buffers()
new Xbar
" VIM::Buffers() without argument in scalar and list context.
perl $nbuf = VIM::Buffers()
perl @buflist = VIM::Buffers()
" VIM::Buffers() with argument.
perl $curbuf = (VIM::Buffers('Xbar'))[0]
perl $curbuf->Append(0, $nbuf, scalar(@buflist))
call assert_equal(['2', '2', ''], getline(1, '$'))
bwipe!
endfunc
func Test_perleval()
call assert_false(perleval('undef'))
"" scalar
call assert_equal(0, perleval('0'))
call assert_equal(2, perleval('2'))
call assert_equal(-2, perleval('-2'))
if has('float')
call assert_equal(2.5, perleval('2.5'))
else
call assert_equal(2, perleval('2.5'))
end
call assert_equal('abc', perleval('"abc"'))
"" ref
call assert_equal([], perleval('[]'))
call assert_equal(['word', 42, [42],{}], perleval('["word", 42, [42], {}]'))
call assert_equal({}, perleval('{}'))
call assert_equal({'foo': 'bar'}, perleval('{foo => "bar"}'))
perl our %h; our @a;
let a = perleval('[\%h, \%h, \@a, \@a]')
echo a
call assert_equal(a[0], a[1])
call assert_equal(a[2], a[3])
perl undef %h; undef @a;
call assert_equal('*VIM', perleval('"*VIM"'))
endfunc
func Test_perldo()
sp __TEST__
exe 'read ' g:testname
perldo s/perl/vieux_chameau/g
1
call assert_false(search('\Cperl'))
bw!
" Check deleting lines does not trigger ml_get error.
new
call setline(1, ['one', 'two', 'three'])
perldo VIM::DoCommand("%d_")
bwipe!
"" Check switching to another buffer does not trigger ml_get error.
new
let wincount = winnr('$')
call setline(1, ['one', 'two', 'three'])
perldo VIM::DoCommand("new")
call assert_equal(wincount + 1, winnr('$'))
bwipe!
bwipe!
endfunc
func Test_VIM_package()
perl VIM::DoCommand('let l:var = "foo"')
call assert_equal(l:var, 'foo')
set noet
perl VIM::SetOption('et')
call assert_true(&et)
endfunc
func Test_set_cursor()
" Check that setting the cursor position works.
new
call setline(1, ['first line', 'second line'])
normal gg
perldo $curwin->Cursor(1, 5)
call assert_equal([1, 6], [line('.'), col('.')])
" Check that movement after setting cursor position keeps current column.
normal j
call assert_equal([2, 6], [line('.'), col('.')])
endfunc
" Test for various heredoc syntax
func Test_perl_heredoc()
perl << END
VIM::DoCommand('let s = "A"')
END
perl <<
VIM::DoCommand('let s ..= "B"')
.
call assert_equal('AB', s)
endfunc
" vim: shiftwidth=2 sts=2 expandtab

View File

@ -768,9 +768,12 @@ function module.new_pipename()
end
function module.missing_provider(provider)
if provider == 'ruby' or provider == 'node' or provider == 'perl' then
if provider == 'ruby' or provider == 'node' then
local prog = module.funcs['provider#' .. provider .. '#Detect']()
return prog == '' and (provider .. ' not detected') or false
elseif provider == 'perl' then
local errors = module.funcs['provider#'..provider..'#Detect']()[2]
return errors ~= '' and errors or false
elseif provider == 'python' or provider == 'python3' then
local py_major_version = (provider == 'python3' and 3 or 2)
local errors = module.funcs['provider#pythonx#Detect'](py_major_version)[2]

View File

@ -5,6 +5,10 @@ local command = helpers.command
local write_file = helpers.write_file
local eval = helpers.eval
local retry = helpers.retry
local curbufmeths = helpers.curbufmeths
local insert = helpers.insert
local expect = helpers.expect
local feed = helpers.feed
do
clear()
@ -19,7 +23,51 @@ before_each(function()
clear()
end)
describe('perl host', function()
describe('legacy perl provider', function()
if helpers.pending_win32(pending) then return end
it('feature test', function()
eq(1, eval('has("perl")'))
end)
it(':perl command', function()
command('perl $vim->vars->{set_by_perl} = [100, 0];')
eq({100, 0}, eval('g:set_by_perl'))
end)
it(':perlfile command', function()
local fname = 'perlfile.pl'
write_file(fname, '$vim->command("let set_by_perlfile = 123")')
command('perlfile perlfile.pl')
eq(123, eval('g:set_by_perlfile'))
os.remove(fname)
end)
it(':perldo command', function()
-- :perldo 1; doesn't change $_,
-- the buffer should not be changed
command('normal :perldo 1;')
eq(false, curbufmeths.get_option('modified'))
-- insert some text
insert('abc\ndef\nghi')
expect([[
abc
def
ghi]])
-- go to top and select and replace the first two lines
feed('ggvj:perldo $_ = reverse ($_)."$linenr"<CR>')
expect([[
cba1
fed2
ghi]])
end)
it('perleval()', function()
eq({1, 2, {['key'] = 'val'}}, eval([[perleval('[1, 2, {"key" => "val"}]')]]))
end)
end)
describe('perl provider', function()
if helpers.pending_win32(pending) then return end
teardown(function ()
os.remove('Xtest-perl-hello.pl')