diff options
| -rw-r--r-- | runtime/doc/api.txt | 100 | ||||
| -rw-r--r-- | src/nvim/api/buffer.c | 17 | ||||
| -rw-r--r-- | src/nvim/api/vim.c | 8 |
3 files changed, 88 insertions, 37 deletions
diff --git a/runtime/doc/api.txt b/runtime/doc/api.txt index dae7986fdb..df345e4981 100644 --- a/runtime/doc/api.txt +++ b/runtime/doc/api.txt @@ -134,6 +134,14 @@ lines, 0-based columns): |nvim_win_get_cursor()| |nvim_win_set_cursor()| +Exception: the following API functions use |extmarks| indexing (0-based +indices, end-inclusive): + + |nvim_buf_del_extmark()| + |nvim_buf_get_extmark_by_id()| + |nvim_buf_get_extmarks()| + |nvim_buf_set_extmark()| + *api-fast* Most API functions are "deferred": they are queued on the main loop and processed sequentially with normal input. So if the editor is waiting for @@ -436,36 +444,76 @@ Example: create a float with scratch buffer: > > ============================================================================== -Extended marks *api-extended-marks* +Extended marks *api-extended-marks* *extmarks* Extended marks (extmarks) represent buffer annotations that track text changes -in the buffer. They could be used to represent cursors, folds, misspelled -words, and anything else that needs to track a logical location in the buffer -over time. +in the buffer. They can represent cursors, folds, misspelled words, anything +that needs to track a logical location in the buffer over time. |api-indexing| + +Extmark position works like "bar" cursor: it exists between characters. Thus +the maximum extmark index on a line is 1 more than the character index: > + + f o o b a r line contents + 0 1 2 3 4 5 character positions (0-based) + 0 1 2 3 4 5 6 extmark positions (0-based) + +Extmarks have "forward gravity": if you place the cursor directly on an +extmark position and enter some text, the extmark migrates forward. > + + f o o|b a r line (| = cursor) + 3 extmark + + f o o z|b a r line (| = cursor) + 4 extmark (after typing "z") + +If an extmark is on the last index of a line and you inputsa newline at that +point, the extmark will accordingly migrate to the next line: > + + f o o z b a r| line (| = cursor) + 7 extmark + + f o o z b a r first line + extmarks (none present) + | second line (| = cursor) + 0 extmark (after typing <CR>) + Example: -We will set an extmark at the first row and third column. |api-indexing| is -zero-indexed, so we use row=0 and column=2. Passing id=0 creates a new mark -and returns the id: > +Let's set an extmark at the first row (row=0) and third column (column=2). +|api-indexing| Passing id=0 creates a new mark and returns the id: > + 01 2345678 + 0 ex|ample.. +< ^ extmark position +> let g:mark_ns = nvim_create_namespace('myplugin') - let g:mark_id = nvim_buf_set_extmark(0, g:mark_ns, 0, 0, 2, {}) - -We can get a mark by its id: > + let g:mark_id = nvim_buf_set_extmark(0, g:mark_ns, 0, 2, {}) +< +We can get the mark by its id: > - echo nvim_buf_get_extmark_by_id(0, g:mark_ns, g:mark_id) + echo nvim_buf_get_extmark_by_id(0, g:mark_ns, g:mark_id, {}) => [0, 2] -We can get all marks in a buffer for our namespace (or by a range): > +We can get all marks in a buffer by |namespace| (or by a range): > echo nvim_buf_get_extmarks(0, g:mark_ns, 0, -1, {}) => [[1, 0, 2]] -Deleting all text surrounding an extmark does not remove the extmark. To -remove an extmark use |nvim_buf_del_extmark()|. +Deleting all surrounding text does NOT remove an extmark! To remove extmarks +use |nvim_buf_del_extmark()|. Deleting "x" in our example: > + + 0 12345678 + 0 e|ample.. +< ^ extmark position +> + echo nvim_buf_get_extmark_by_id(0, g:mark_ns, g:mark_id, {}) + => [0, 1] +< + Note: Extmark "gravity" decides how it will shift after a text edit. + See |nvim_buf_set_extmark()| -Namespaces allow your plugin to manage only its own extmarks, ignoring those +Namespaces allow any plugin to manage only its own extmarks, ignoring those created by another plugin. Extmark positions changed by an edit will be restored on undo/redo. Creating @@ -779,10 +827,9 @@ nvim_feedkeys({keys}, {mode}, {escape_csi}) *nvim_feedkeys()* On execution error: does not fail, but updates v:errmsg. - If you need to input sequences like <C-o> use - |nvim_replace_termcodes| to replace the termcodes and then - pass the resulting string to nvim_feedkeys. You'll also want - to enable escape_csi. + To input sequences like <C-o> use |nvim_replace_termcodes()| + (typically with escape_csi=true) to replace the keycodes. Then + pass the result to nvim_feedkeys(). Example: > :let key = nvim_replace_termcodes("<C-o>", v:true, v:false, v:true) @@ -2072,7 +2119,7 @@ nvim_buf_get_commands({buffer}, {opts}) *nvim_buf_get_commands()* *nvim_buf_get_extmark_by_id()* nvim_buf_get_extmark_by_id({buffer}, {ns_id}, {id}, {opts}) - Returns position for a given extmark id + Gets the position (0-indexed) of an extmark {id}. Parameters: ~ {buffer} Buffer handle, or 0 for current buffer @@ -2082,7 +2129,8 @@ nvim_buf_get_extmark_by_id({buffer}, {ns_id}, {id}, {opts}) • details: Whether to include the details dict Return: ~ - (row, col) tuple or empty list () if extmark id was absent + 0-indexed (row, col) tuple or empty list () if extmark id + was absent *nvim_buf_get_extmarks()* nvim_buf_get_extmarks({buffer}, {ns_id}, {start}, {end}, {opts}) @@ -2122,10 +2170,12 @@ nvim_buf_get_extmarks({buffer}, {ns_id}, {start}, {end}, {opts}) Parameters: ~ {buffer} Buffer handle, or 0 for current buffer {ns_id} Namespace id from |nvim_create_namespace()| - {start} Start of range, given as (row, col) or valid - extmark id (whose position defines the bound) - {end} End of range, given as (row, col) or valid - extmark id (whose position defines the bound) + {start} Start of range, given as 0-indexed (row, col) or + valid extmark id (whose position defines the + bound) + {end} End of range (inclusive), given as 0-indexed + (row, col) or valid extmark id (whose position + defines the bound) {opts} Optional parameters. Keys: • limit: Maximum number of marks to return • details Whether to include the details dict diff --git a/src/nvim/api/buffer.c b/src/nvim/api/buffer.c index 878ffdf06f..3808f601d9 100644 --- a/src/nvim/api/buffer.c +++ b/src/nvim/api/buffer.c @@ -1232,7 +1232,7 @@ static Array extmark_to_array(ExtmarkInfo extmark, bool id, bool add_dict) return rv; } -/// Returns position for a given extmark id +/// Gets the position (0-indexed) of an extmark. /// /// @param buffer Buffer handle, or 0 for current buffer /// @param ns_id Namespace id from |nvim_create_namespace()| @@ -1240,7 +1240,8 @@ static Array extmark_to_array(ExtmarkInfo extmark, bool id, bool add_dict) /// @param opts Optional parameters. Keys: /// - details: Whether to include the details dict /// @param[out] err Error details, if any -/// @return (row, col) tuple or empty list () if extmark id was absent +/// @return 0-indexed (row, col) tuple or empty list () if extmark id was +/// absent ArrayOf(Integer) nvim_buf_get_extmark_by_id(Buffer buffer, Integer ns_id, Integer id, Dictionary opts, Error *err) @@ -1320,10 +1321,10 @@ ArrayOf(Integer) nvim_buf_get_extmark_by_id(Buffer buffer, Integer ns_id, /// /// @param buffer Buffer handle, or 0 for current buffer /// @param ns_id Namespace id from |nvim_create_namespace()| -/// @param start Start of range, given as (row, col) or valid extmark id -/// (whose position defines the bound) -/// @param end End of range, given as (row, col) or valid extmark id -/// (whose position defines the bound) +/// @param start Start of range: a 0-indexed (row, col) or valid extmark id +/// (whose position defines the bound). |api-indexing| +/// @param end End of range (inclusive): a 0-indexed (row, col) or valid +/// extmark id (whose position defines the bound). |api-indexing| /// @param opts Optional parameters. Keys: /// - limit: Maximum number of marks to return /// - details Whether to include the details dict @@ -1424,8 +1425,8 @@ Array nvim_buf_get_extmarks(Buffer buffer, Integer ns_id, /// /// @param buffer Buffer handle, or 0 for current buffer /// @param ns_id Namespace id from |nvim_create_namespace()| -/// @param line Line where to place the mark, 0-based -/// @param col Column where to place the mark, 0-based +/// @param line Line where to place the mark, 0-based. |api-indexing| +/// @param col Column where to place the mark, 0-based. |api-indexing| /// @param opts Optional parameters. /// - id : id of the extmark to edit. /// - end_line : ending line of the mark, 0-based inclusive. diff --git a/src/nvim/api/vim.c b/src/nvim/api/vim.c index 5f48a26a29..f65d5cc185 100644 --- a/src/nvim/api/vim.c +++ b/src/nvim/api/vim.c @@ -275,9 +275,9 @@ static void on_redraw_event(void **argv) /// /// On execution error: does not fail, but updates v:errmsg. /// -/// If you need to input sequences like <C-o> use |nvim_replace_termcodes| to -/// replace the termcodes and then pass the resulting string to nvim_feedkeys. -/// You'll also want to enable escape_csi. +/// To input sequences like <C-o> use |nvim_replace_termcodes()| (typically +/// with escape_csi=true) to replace |keycodes|, then pass the result to +/// nvim_feedkeys(). /// /// Example: /// <pre> @@ -1551,7 +1551,7 @@ void nvim_set_current_tabpage(Tabpage tabpage, Error *err) } } -/// Creates a new namespace, or gets an existing one. +/// Creates a new *namespace*, or gets an existing one. /// /// Namespaces are used for buffer highlights and virtual text, see /// |nvim_buf_add_highlight()| and |nvim_buf_set_extmark()|. |