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Diffstat (limited to 'runtime/doc/api.txt')
| -rw-r--r-- | runtime/doc/api.txt | 216 |
1 files changed, 196 insertions, 20 deletions
diff --git a/runtime/doc/api.txt b/runtime/doc/api.txt index d6e420c427..d52a9a8409 100644 --- a/runtime/doc/api.txt +++ b/runtime/doc/api.txt @@ -19,6 +19,7 @@ API Usage *api-rpc* *RPC* *rpc* *msgpack-rpc* RPC is the typical way to control Nvim programmatically. Nvim implements the MessagePack-RPC protocol: + https://github.com/msgpack-rpc/msgpack-rpc/blob/master/spec.md https://github.com/msgpack/msgpack/blob/0b8f5ac/spec.md Many clients use the API: user interfaces (GUIs), remote plugins, scripts like @@ -439,8 +440,68 @@ 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_exec({src}, {output}) *nvim_exec()* + Executes Vimscript (multiline block of Ex-commands), like + anonymous |:source|. + + Unlike |nvim_command()| this function supports heredocs, + script-scope (s:), etc. + + On execution error: fails with VimL error, does not update + v:errmsg. + + Parameters: ~ + {src} Vimscript code + {output} Capture and return all (non-error, non-shell + |:!|) output + + Return: ~ + Output (non-error, non-shell |:!|) if `output` is true, + else empty string. + + See also: ~ + |execute()| + |nvim_command()| + nvim_command({command}) *nvim_command()* Executes an ex-command. @@ -450,6 +511,9 @@ nvim_command({command}) *nvim_command()* Parameters: ~ {command} Ex-command string + See also: ~ + |nvim_exec()| + nvim_get_hl_by_name({name}, {rgb}) *nvim_get_hl_by_name()* Gets a highlight definition by name. @@ -571,19 +635,9 @@ nvim_replace_termcodes({str}, {from_part}, {do_lt}, {special}) replace_termcodes cpoptions -nvim_command_output({command}) *nvim_command_output()* - Executes an ex-command and returns its (non-error) output. - Shell |:!| output is not captured. - - On execution error: fails with VimL error, does not update - v:errmsg. - - Parameters: ~ - {command} Ex-command string - nvim_eval({expr}) *nvim_eval()* - Evaluates a VimL expression (:help expression). Dictionaries - and Lists are recursively expanded. + Evaluates a VimL |expression|. Dictionaries and Lists are + recursively expanded. On execution error: fails with VimL error, does not update v:errmsg. @@ -594,7 +648,7 @@ nvim_eval({expr}) *nvim_eval()* Return: ~ Evaluation result or expanded object -nvim_execute_lua({code}, {args}) *nvim_execute_lua()* +nvim_exec_lua({code}, {args}) *nvim_exec_lua()* Execute Lua code. Parameters (if any) are available as `...` inside the chunk. The chunk can return a value. @@ -896,10 +950,11 @@ nvim_open_win({buffer}, {enter}, {config}) *nvim_open_win()* 'number', 'relativenumber', 'cursorline', 'cursorcolumn', 'foldcolumn', 'spell' and 'list' options. 'signcolumn' is changed to - `auto` . The end-of-buffer region is hidden - by setting `eob` flag of 'fillchars' to a - space char, and clearing the |EndOfBuffer| - region in 'winhighlight'. + `auto` and 'colorcolumn' is cleared. The + end-of-buffer region is hidden by setting + `eob` flag of 'fillchars' to a space char, + and clearing the |EndOfBuffer| region in + 'winhighlight'. Return: ~ Window handle, or 0 on error @@ -984,7 +1039,7 @@ nvim_put({lines}, {type}, {after}, {follow}) *nvim_put()* {type} Edit behavior: any |getregtype()| result, or: • "b" |blockwise-visual| mode (may include width, e.g. "b3") - • "c" |characterwise| mode + • "c" |charwise| mode • "l" |linewise| mode • "" guess by contents, see |setreg()| {after} Insert after cursor (like |p|), or before (like @@ -1479,6 +1534,13 @@ nvim_buf_attach({buffer}, {send_buffer}, {opts}) *nvim_buf_attach()* 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} True if the initial notification should @@ -1747,6 +1809,99 @@ 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} Buffer handle, or 0 for current buffer + {ns_id} Namespace id from |nvim_create_namespace()| + {id} 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}) + Gets extmarks in "traversal order" from a |charwise| region + defined by buffer positions (inclusive, 0-indexed + |api-indexing|). + + Region can be given as (row,col) tuples, or valid extmark ids + (whose positions define the bounds). 0 and -1 are understood + as (0,0) and (-1,-1) respectively, thus the following are + equivalent: +> + nvim_buf_get_extmarks(0, my_ns, 0, -1, {}) + nvim_buf_get_extmarks(0, my_ns, [0,0], [-1,-1], {}) +< + + If `end` is less than `start` , traversal works backwards. + (Useful with `limit` , to get the first marks prior to a given + position.) + + Example: +> + local a = vim.api + local pos = a.nvim_win_get_cursor(0) + local ns = a.nvim_create_namespace('my-plugin') + -- Create new extmark at line 1, column 1. + local m1 = a.nvim_buf_set_extmark(0, ns, 0, 0, 0, {}) + -- Create new extmark at line 3, column 1. + local m2 = a.nvim_buf_set_extmark(0, ns, 0, 2, 0, {}) + -- Get extmarks only from line 3. + local ms = a.nvim_buf_get_extmarks(0, ns, {2,0}, {2,0}, {}) + -- Get all marks in this buffer + namespace. + local all = a.nvim_buf_get_extmarks(0, ns, 0, -1, {}) + print(vim.inspect(ms)) +< + + 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) + {opts} Optional parameters. Keys: + • limit: Maximum number of marks to return + + Return: ~ + List of [extmark_id, row, col] tuples in "traversal + order". + + *nvim_buf_set_extmark()* +nvim_buf_set_extmark({buffer}, {ns_id}, {id}, {line}, {col}, {opts}) + Creates or updates an extmark. + + To create a new extmark, pass id=0. The extmark id will be + returned. 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. (Useful over RPC, to avoid + waiting for the return value.) + + Parameters: ~ + {buffer} Buffer handle, or 0 for current buffer + {ns_id} Namespace id from |nvim_create_namespace()| + {id} Extmark id, or 0 to create new + {line} Line number where to place the mark + {col} Column where to place the mark + {opts} Optional parameters. Currently not used. + + Return: ~ + Id of the created/updated extmark + +nvim_buf_del_extmark({buffer}, {ns_id}, {id}) *nvim_buf_del_extmark()* + Removes an extmark. + + Parameters: ~ + {buffer} Buffer handle, or 0 for current buffer + {ns_id} Namespace id from |nvim_create_namespace()| + {id} Extmark id + + Return: ~ + true if the extmark was found, else false + *nvim_buf_add_highlight()* nvim_buf_add_highlight({buffer}, {ns_id}, {hl_group}, {line}, {col_start}, {col_end}) @@ -1790,8 +1945,8 @@ nvim_buf_add_highlight({buffer}, {ns_id}, {hl_group}, {line}, *nvim_buf_clear_namespace()* nvim_buf_clear_namespace({buffer}, {ns_id}, {line_start}, {line_end}) - Clears namespaced objects, highlights and virtual text, from a - line range + Clears namespaced objects (highlights, extmarks, virtual text) + from a region. Lines are 0-indexed. |api-indexing| To clear the namespace in the entire buffer, specify line_start=0 and line_end=-1. @@ -1842,6 +1997,27 @@ 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 |