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- *if_perl.txt* For Vim version 6.0. Last change: 2001 Sep 03
-
-
- VIM REFERENCE MANUAL by Sven Verdoolaege
- and Matt Gerassimof
-
- Perl and Vim *perl* *Perl*
-
- 1. Editing Perl files |perl-editing|
- 2. Compiling VIM with Perl interface |perl-compiling|
- 3. Using the Perl interface |perl-using|
-
- {Vi does not have any of these commands}
-
- The Perl interface only works when Vim was compiled with the |+perl| feature.
-
- ==============================================================================
- 1. Editing Perl files *perl-editing*
-
- Vim syntax highlighting supports Perl and POD files. Vim assumes a file is
- Perl code if the filename has a .pl or .pm suffix. Vim also examines the first
- line of a file, regardless of the filename suffix, to check if a file is a
- Perl script (see scripts.vim in Vim's syntax directory). Vim assumes a file
- is POD text if the filename has a .POD suffix.
-
- To use tags with Perl, you need a recent version of Exuberant ctags. Look
- here:
- http://ctags.sourceforge.net
-
- Alternatively, you can use the Perl script pltags.pl, which is shipped with
- Vim in the $VIMRUNTIME/tools directory. This script has currently more
- features than Exuberant ctags' Perl support.
-
- ==============================================================================
- 2. Compiling VIM with Perl interface *perl-compiling*
-
- To compile Vim with Perl interface, you need Perl 5.004 (or later). Perl must
- be installed before you compile Vim. Vim's Perl interface does NOT work with
- the 5.003 version that has been officially released! It will probably work
- with Perl 5.003_05 and later.
-
- The Perl patches for Vim were made by:
- Sven Verdoolaege <skimo@breughel.ufsia.ac.be>
- Matt Gerassimof
-
- Perl for MS-Windows can be found at:
- http://www.perl.com/CPAN-local/ports/nt/Standard/x86/
-
- ==============================================================================
- 3. Using the Perl interface *perl-using*
-
- *:perl* *:pe*
- :pe[rl] {cmd} Execute Perl command {cmd}. The current package
- is "main".
-
- :pe[rl] << {endpattern}
- {script}
- {endpattern}
- Execute Perl script {script}.
- {endpattern} must NOT be preceded by any white space.
- If {endpattern} is omitted, it defaults to a dot '.'
- like for the |:append| and |:insert| commands. This
- form of the |:perl| command is mainly useful for
- including perl code in vim scripts.
-
- Example vim script: >
-
- function! WhitePearl()
- perl << EOF
- VIM::Msg("pearls are nice for necklaces");
- VIM::Msg("rubys for rings");
- VIM::Msg("pythons for bags");
- VIM::Msg("tcls????");
- EOF
- endfunction
- <
-
- *:perldo* *:perld*
- :[range]perld[o] {cmd} Execute Perl command {cmd} for each line in the
- [range], with $_ being set to the text of each line in
- turn, without a trailing <EOL>. Setting $_ will change
- the text, but note that it is not possible to add or
- delete lines using this command.
- The default for [range] is the whole file: "1,$".
-
- Here are some things you can try: >
-
- :perl $a=1
- :perldo $_ = reverse($_);1
- :perl VIM::Msg("hello")
- :perl $line = $curbuf->Get(42)
- <
- *E299*
- Executing Perl commands in the |sandbox| is limited. ":perldo" will not be
- possible at all. ":perl" will be evaluated in the Safe environment, if
- possible.
-
-
- *perl-overview*
- Here is an overview of the functions that are available to Perl: >
-
- :perl VIM::Msg("Text") # displays a message
- :perl VIM::Msg("Error", "ErrorMsg") # displays an error message
- :perl VIM::Msg("remark", "Comment") # displays a highlighted message
- :perl VIM::SetOption("ai") # sets a vim option
- :perl $nbuf = VIM::Buffers() # returns the number of buffers
- :perl @buflist = VIM::Buffers() # returns array of all buffers
- :perl $mybuf = (VIM::Buffers('qq.c'))[0] # returns buffer object for 'qq.c'
- :perl @winlist = VIM::Windows() # returns array of all windows
- :perl $nwin = VIM::Windows() # returns the number of windows
- :perl ($success, $v) = VIM::Eval('&path') # $v: option 'path', $success: 1
- :perl ($success, $v) = VIM::Eval('&xyz') # $v: '' and $success: 0
- :perl $v = VIM::Eval('expand("<cfile>")') # expands <cfile>
- :perl $curwin->SetHeight(10) # sets the window height
- :perl @pos = $curwin->Cursor() # returns (row, col) array
- :perl @pos = (10, 10)
- :perl $curwin->Cursor(@pos) # sets cursor to @pos
- :perl $curwin->Cursor(10,10) # sets cursor to row 10 col 10
- :perl $mybuf = $curwin->Buffer() # returns the buffer object for window
- :perl $curbuf->Name() # returns buffer name
- :perl $curbuf->Number() # returns buffer number
- :perl $curbuf->Count() # returns the number of lines
- :perl $l = $curbuf->Get(10) # returns line 10
- :perl @l = $curbuf->Get(1 .. 5) # returns lines 1 through 5
- :perl $curbuf->Delete(10) # deletes line 10
- :perl $curbuf->Delete(10, 20) # delete lines 10 through 20
- :perl $curbuf->Append(10, "Line") # appends a line
- :perl $curbuf->Append(10, "Line1", "Line2", "Line3") # appends 3 lines
- :perl @l = ("L1", "L2", "L3")
- :perl $curbuf->Append(10, @l) # appends L1, L2 and L3
- :perl $curbuf->Set(10, "Line") # replaces line 10
- :perl $curbuf->Set(10, "Line1", "Line2") # replaces lines 10 and 11
- :perl $curbuf->Set(10, @l) # replaces 3 lines
- <
- *perl-Msg*
- VIM::Msg({msg}, {group}?)
- Displays the message {msg}. The optional {group}
- argument specifies a highlight group for Vim to use
- for the message.
-
- *perl-SetOption*
- VIM::SetOption({arg}) Sets a vim option. {arg} can be any argument that the
- ":set" command accepts. Note that this means that no
- spaces are allowed in the argument! See |:set|.
-
- *perl-Buffers*
- VIM::Buffers([{bn}...]) With no arguments, returns a list of all the buffers
- in an array context or returns the number of buffers
- in a scalar context. For a list of buffer names or
- numbers {bn}, returns a list of the buffers matching
- {bn}, using the same rules as Vim's internal
- |bufname()| function.
-
- *perl-Windows*
- VIM::Windows([{wn}...]) With no arguments, returns a list of all the windows
- in an array context or returns the number of windows
- in a scalar context. For a list of window numbers
- {wn}, returns a list of the windows with those
- numbers.
-
- *perl-DoCommand*
- VIM::DoCommand({cmd}) Executes Ex command {cmd}.
-
- *perl-Eval*
- VIM::Eval({expr}) Evaluates {expr} and returns (success, val).
- success=1 indicates that val contains the value of
- {expr}; success=0 indicates a failure to evaluate
- the expression. '@x' returns the contents of register
- x, '&x' returns the value of option x, 'x' returns the
- value of internal |variables| x, and '$x' is equivalent
- to perl's $ENV{x}. All |functions| accessible from
- the command-line are valid for {expr}.
-
- *perl-SetHeight*
- Window->SetHeight({height})
- Sets the Window height to {height}, within screen
- limits.
-
- *perl-GetCursor*
- Window->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.
-
- Window->Buffer() *perl-Buffer*
- Returns the Buffer object corresponding to the given
- Window.
-
- *perl-Name*
- Buffer->Name() Returns the filename for the Buffer.
-
- *perl-Number*
- Buffer->Number() Returns the number of the Buffer.
-
- *perl-Count*
- Buffer->Count() Returns the number of lines in the Buffer.
-
- *perl-Get*
- Buffer->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-Delete*
- Buffer->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-Append*
- Buffer->Append({lnum}, {line}, {line}?, ...)
- Appends each {line} string after Buffer line {lnum}.
- The list of {line}s can be an array.
-
- *perl-Set*
- Buffer->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.
-
- $main::curwin
- The current window object.
-
- $main::curbuf
- The current buffer object.
-
-
- vim:tw=78:ts=8:ft=help:norl:
-