diff options
Diffstat (limited to 'runtime/doc/api.txt')
| -rw-r--r-- | runtime/doc/api.txt | 221 |
1 files changed, 194 insertions, 27 deletions
diff --git a/runtime/doc/api.txt b/runtime/doc/api.txt index 98dd330b48..57a72e6173 100644 --- a/runtime/doc/api.txt +++ b/runtime/doc/api.txt @@ -439,6 +439,43 @@ Example: create a float with scratch buffer: > > ============================================================================== +Extended marks *api-extended-marks* + +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. + +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 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: > + + 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): > + + 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()|. + +Namespaces allow your 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 +and deleting extmarks is not a buffer change, thus new undo states are not +created for extmark changes. + +============================================================================== Global Functions *api-global* nvim_command({command}) *nvim_command()* @@ -850,10 +887,10 @@ nvim_open_win({buffer}, {enter}, {config}) *nvim_open_win()* {enter} Enter the window (make it the current window) {config} Map defining the window configuration. Keys: • `relative` : Sets the window layout to "floating", placed - at (row,col) coordinates relative to one of: + at (row,col) coordinates relative to: • "editor" The global editor grid • "win" Window given by the `win` field, or - current window by default. + current window. • "cursor" Cursor position in current window. • `win` : |window-ID| for relative="win". @@ -1476,45 +1513,73 @@ nvim_buf_line_count({buffer}) *nvim_buf_line_count()* Line count, or 0 for unloaded buffer. |api-buffer| nvim_buf_attach({buffer}, {send_buffer}, {opts}) *nvim_buf_attach()* - Activates buffer-update events on a channel, or as lua + Activates buffer-update events on a channel, or as Lua callbacks. + Example (Lua): capture buffer updates in a global `events` variable (use "print(vim.inspect(events))" to see its + contents): > + events = {} + vim.api.nvim_buf_attach(0, false, { + on_lines=function(...) table.insert(events, {...}) end}) +< + Parameters: ~ {buffer} Buffer handle, or 0 for current buffer - {send_buffer} Set to true if the initial notification - should contain the whole buffer. If so, the - first notification will be a - `nvim_buf_lines_event` . Otherwise, the - first notification will be a - `nvim_buf_changedtick_event` . Not used for - lua callbacks. + {send_buffer} True if the initial notification should + contain the whole buffer: first + notification will be `nvim_buf_lines_event` + . Else the first notification will be + `nvim_buf_changedtick_event` . Not for Lua + callbacks. {opts} Optional parameters. - • `on_lines` : lua callback received on - change. - • `on_changedtick` : lua callback received - on changedtick increment without text - change. - • `utf_sizes` : include UTF-32 and UTF-16 - size of the replaced region. See - |api-buffer-updates-lua| for more - information + • on_lines: Lua callback invoked on change. + Return `true` to detach. Args: + • buffer handle + • b:changedtick + • first line that changed (zero-indexed) + • last line that was changed + • last line in the updated range + • byte count of previous contents + • deleted_codepoints (if `utf_sizes` is + true) + • deleted_codeunits (if `utf_sizes` is + true) + + • on_changedtick: Lua callback invoked on + changedtick increment without text + change. Args: + • buffer handle + • b:changedtick + + • on_detach: Lua callback invoked on + detach. Args: + • buffer handle + + • utf_sizes: include UTF-32 and UTF-16 size + of the replaced region, as args to + `on_lines` . + + Return: ~ + False if attach failed (invalid parameter, or buffer isn't + loaded); otherwise True. TODO: LUA_API_NO_EVAL - Return: ~ - False when updates couldn't be enabled because the buffer - isn't loaded or `opts` contained an invalid key; otherwise - True. TODO: LUA_API_NO_EVAL + See also: ~ + |nvim_buf_detach()| + |api-buffer-updates-lua| nvim_buf_detach({buffer}) *nvim_buf_detach()* Deactivates buffer-update events on the channel. - For Lua callbacks see |api-lua-detach|. - Parameters: ~ {buffer} Buffer handle, or 0 for current buffer Return: ~ - False when updates couldn't be disabled because the buffer - isn't loaded; otherwise True. + False if detach failed (because the buffer isn't loaded); + otherwise True. + + See also: ~ + |nvim_buf_attach()| + |api-lua-detach| for detaching Lua callbacks *nvim_buf_get_lines()* nvim_buf_get_lines({buffer}, {start}, {end}, {strict_indexing}) @@ -1726,6 +1791,87 @@ nvim_buf_get_mark({buffer}, {name}) *nvim_buf_get_mark()* Return: ~ (row, col) tuple + *nvim_buf_get_extmark_by_id()* +nvim_buf_get_extmark_by_id({buffer}, {ns_id}, {id}) + Returns position for a given extmark id + + Parameters: ~ + {buffer} The buffer handle + {namespace} a identifier returned previously with + nvim_create_namespace + {id} the extmark id + + Return: ~ + (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}) + List extmarks in a range (inclusive) + + range ends can be specified as (row, col) tuples, as well as + extmark ids in the same namespace. In addition, 0 and -1 works + as shorthands for (0,0) and (-1,-1) respectively, so that all + marks in the buffer can be queried as: + + all_marks = nvim_buf_get_extmarks(0, my_ns, 0, -1, {}) + + If end is a lower position than start, then the range will be + traversed backwards. This is mostly useful with limited + amount, to be able to get the first marks prior to a given + position. + + Parameters: ~ + {buffer} The buffer handle + {ns_id} An id returned previously from + nvim_create_namespace + {start} One of: extmark id, (row, col) or 0, -1 for + buffer ends + {end} One of: extmark id, (row, col) or 0, -1 for + buffer ends + {opts} additional options. Supports the keys: + • amount: Maximum number of marks to return + + Return: ~ + [[extmark_id, row, col], ...] + + *nvim_buf_set_extmark()* +nvim_buf_set_extmark({buffer}, {ns_id}, {id}, {line}, {col}, {opts}) + Create or update an extmark at a position + + If an invalid namespace is given, an error will be raised. + + To create a new extmark, pass in id=0. The new extmark id will + be returned. To move an existing mark, pass in its id. + + It is also allowed to create a new mark by passing in a + previously unused id, but the caller must then keep track of + existing and unused ids itself. This is mainly useful over + RPC, to avoid needing to wait for the return value. + + Parameters: ~ + {buffer} The buffer handle + {ns_id} a identifier returned previously with + nvim_create_namespace + {id} The extmark's id or 0 to create a new mark. + {line} The row to set the extmark to. + {col} The column to set the extmark to. + {opts} Optional parameters. Currently not used. + + Return: ~ + the id of the extmark. + +nvim_buf_del_extmark({buffer}, {ns_id}, {id}) *nvim_buf_del_extmark()* + Remove an extmark + + Parameters: ~ + {buffer} The buffer handle + {ns_id} a identifier returned previously with + nvim_create_namespace + {id} The extmarks's id + + Return: ~ + true on success, false if the extmark was not found. + *nvim_buf_add_highlight()* nvim_buf_add_highlight({buffer}, {ns_id}, {hl_group}, {line}, {col_start}, {col_end}) @@ -1821,6 +1967,27 @@ nvim_buf_set_virtual_text({buffer}, {ns_id}, {line}, {chunks}, {opts}) Return: ~ The ns_id that was used +nvim_buf_get_virtual_text({buffer}, {lnum}) *nvim_buf_get_virtual_text()* + Get the virtual text (annotation) for a buffer line. + + The virtual text is returned as list of lists, whereas the + inner lists have either one or two elements. The first element + is the actual text, the optional second element is the + highlight group. + + The format is exactly the same as given to + nvim_buf_set_virtual_text(). + + If there is no virtual text associated with the given line, an + empty list is returned. + + Parameters: ~ + {buffer} Buffer handle, or 0 for current buffer + {line} Line to get the virtual text from (zero-indexed) + + Return: ~ + List of virtual text chunks + nvim__buf_stats({buffer}) *nvim__buf_stats()* TODO: Documentation |