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Vim-sexp brings the Vim philosophy ofprecision editing to S-expressions.

• Vim 7.3+

• vim-repeat (optional)

  Enables use of the. command for repeating change operations in vim-sexp,as well as repeating builtin operations with vim-sexp's text objects.

A COMPOUND FORM is a region of text delimited by a pair of( and),[ and], or{ and}.

A STRING is a contiguous region of text whose syntax name matches the Vimpattern\vstring|regex|pattern.

A COMMENT is a region of text whose syntax name matches the Vim patterncomment. Line comments that are indented but on successive lines areconsidered to be a single comment.

MACRO CHARACTERS are the special set of leading characters expanded by a Lispreader at read-time. These differ by language, and default to Scheme's macrocharacter set in an unknown FileType.

An ELEMENT is the

• current STRING if the cursor is in a STRING
• current COMMENT if the cursor is in a COMMENT
• current COMPOUND FORM if the cursor is on a paired structural bracket
• current sequence of MACRO CHARACTERS and the following ELEMENT if the cursor is on a MACRO CHARACTER
• current contiguous sequence of non-whitespace, non-bracket characters otherwise

An ELEMENT always includes any leading MACRO CHARACTERS.

All default mappings can be changed via theg:sexp_mappings variable. Everymapping is available as a<Plug> mapping, which may be used for any purpose.

Users who desire more explicit, opt-in configuration should refer to:help sexp-explicit-mappings.

Comprehensive documentation is available at:help vim-sexp. The following isa brief summary.

Text object selections refer to textaround the cursor.

• Theaf andif objects select COMPOUND FORMS.
• TheaF andiF objects select top-level COMPOUND FORMS.
• Theas andis objects select STRINGS.
• Theae andie objects select ELEMENTS.

Text object motions move the cursor in normal mode, extend selections invisual mode, and refer to text defined by the movement of the cursor inoperator-pending mode.

• The( and) motions move the cursor to the nearest paired structural bracket.
• The<M-b> and<M-w> motions move the cursor ELEMENT-wise, ending on an element head. Analogous to builtinb andw motions.
• Theg<M-e> and<M-e> motions move the cursor ELEMENT-wise, ending on an element tail. Analogous to builtinge ande motions.
• The[[ and]] motions move the cursor to an adjacent top-level ELEMENT.
• The[e and]e mappings select an adjacent ELEMENT.

• == indents the current COMPOUND FORM without moving the cursor
• =- indents the current top-level COMPOUND FORM without moving the cursor

Wrap commands wrap the current COMPOUND FORM, ELEMENT, or visual selection andplace the cursor at the head or tail of the newly created COMPOUND FORM.

Ifg:sexp_insert_after_wrap is set (true by default), insert mode is enteredafter wrapping.

• <LocalLeader>i and<LocalLeader>I wrap the current COMPOUND FORM with( and).
• <LocalLeader>[ and<LocalLeader>] wrap the current COMPOUND FORM with[ and].
• <LocalLeader>{ and<LocalLeader>} wrap the current COMPOUND FORM with{ and}.
• <LocalLeader>W and<LocalLeader>w wrap the current ELEMENT with( and).
• <LocalLeader>e[ and<LocalLeader>e] wrap the current ELEMENT with[ and].
• <LocalLeader>e{ and<LocalLeader>e} wrap the current ELEMENT with{ and}.

List manipulation commands change the structure of COMPOUND FORMS. If thesecommands are called from visual mode, the selection is used in place of thecurrent COMPOUND FORM or ELEMENT.

• <LocalLeader>@ splices the current COMPOUND FORM into its parent.
• <LocalLeader>o raises the current COMPOUND FORM to replace the enclosing COMPOUND FORM.
• <LocalLeader>O raises the current ELEMENT to replace the enclosing COMPOUND FORM.
• <M-k> and<M-j> swap the position of the current COMPOUND FORM with a sibling ELEMENT.
• <M-h> and<M-l> swap the position of the current ELEMENT with a sibling ELEMENT.
• <M-S-j> and<M-S-k> emit the terminal ELEMENTS of the current COMPOUND FORM.
• <M-S-h> and<M-S-l> capture adjacent ELEMENTS into the current COMPOUND FORM.

The last two commands are also known asbarfage andslurpage inparedit.el.

• <LocalLeader>h inserts the cursor at the head of the current COMPOUND FORM
• <LocalLeader>l inserts the cursor at the tail of the current COMPOUND FORM

If inserting at the head, a space is conditionally appended after the openingbracket so that any typed characters will be separated from the next element.

Vim-sexp does intelligent bracket and double quote insertion likeparedit.el. Unlike ParEdit, deletion of brackets that would cause animbalance is not prevented, except in the limited case of<BS> below.

• (,[, and{ produce a closing bracket and also insert spaces asnecessary to separate the new COMPOUND FORM from adjacent non-compoundELEMENTS.
• ),], and} insert closing brackets when the corresponding openingbracket is unpaired. If the opening bracket is paired, jump to the nextpaired instance of the closing bracket.
• " inserts a pair of double quotes, unless the cursor is currently ina STRING.
• <BS> deletes an adjacent pair of(),[],{}, and"" when deletingthe opening bracket or quote. Normal backspace otherwise.

These insert mode mappings can be disabled with:

letg:sexp_enable_insert_mode_mappings=0