diff options
Diffstat (limited to 'runtime/lua/vim/lsp/sync.lua')
| -rw-r--r-- | runtime/lua/vim/lsp/sync.lua | 59 |
1 files changed, 11 insertions, 48 deletions
diff --git a/runtime/lua/vim/lsp/sync.lua b/runtime/lua/vim/lsp/sync.lua index bdfe8d51b8..3df45ebff0 100644 --- a/runtime/lua/vim/lsp/sync.lua +++ b/runtime/lua/vim/lsp/sync.lua @@ -48,45 +48,6 @@ local str_utfindex = vim.str_utfindex local str_utf_start = vim.str_utf_start local str_utf_end = vim.str_utf_end --- Given a line, byte idx, and offset_encoding convert to the --- utf-8, utf-16, or utf-32 index. ----@param line string the line to index into ----@param byte integer the byte idx ----@param offset_encoding string utf-8|utf-16|utf-32|nil (default: utf-8) ----@return integer utf_idx for the given encoding -local function byte_to_utf(line, byte, offset_encoding) - -- convert to 0 based indexing for str_utfindex - byte = byte - 1 - - local utf_idx, _ --- @type integer, integer - -- Convert the byte range to utf-{8,16,32} and convert 1-based (lua) indexing to 0-based - if offset_encoding == 'utf-16' then - _, utf_idx = str_utfindex(line, byte) - elseif offset_encoding == 'utf-32' then - utf_idx, _ = str_utfindex(line, byte) - else - utf_idx = byte - end - - -- convert to 1 based indexing - return utf_idx + 1 -end - ----@param line string ----@param offset_encoding string ----@return integer -local function compute_line_length(line, offset_encoding) - local length, _ --- @type integer, integer - if offset_encoding == 'utf-16' then - _, length = str_utfindex(line) - elseif offset_encoding == 'utf-32' then - length, _ = str_utfindex(line) - else - length = #line - end - return length -end - -- Given a line, byte idx, alignment, and offset_encoding convert to the aligned -- utf-8 index and either the utf-16, or utf-32 index. ---@param line string the line to index into @@ -101,7 +62,7 @@ local function align_end_position(line, byte, offset_encoding) char = byte -- Called in the case of extending an empty line "" -> "a" elseif byte == #line + 1 then - char = compute_line_length(line, offset_encoding) + 1 + char = str_utfindex(line, offset_encoding) + 1 else -- Modifying line, find the nearest utf codepoint local offset = str_utf_start(line, byte) @@ -111,9 +72,10 @@ local function align_end_position(line, byte, offset_encoding) byte = byte + str_utf_end(line, byte) + 1 end if byte <= #line then - char = byte_to_utf(line, byte, offset_encoding) + --- Convert to 0 based for input, and from 0 based for output + char = str_utfindex(line, offset_encoding, byte - 1) + 1 else - char = compute_line_length(line, offset_encoding) + 1 + char = str_utfindex(line, offset_encoding) + 1 end -- Extending line, find the nearest utf codepoint for the last valid character end @@ -153,7 +115,7 @@ local function compute_start_range( if line then line_idx = firstline - 1 byte_idx = #line + 1 - char_idx = compute_line_length(line, offset_encoding) + 1 + char_idx = str_utfindex(line, offset_encoding) + 1 else line_idx = firstline byte_idx = 1 @@ -190,10 +152,11 @@ local function compute_start_range( char_idx = 1 elseif start_byte_idx == #prev_line + 1 then byte_idx = start_byte_idx - char_idx = compute_line_length(prev_line, offset_encoding) + 1 + char_idx = str_utfindex(prev_line, offset_encoding) + 1 else byte_idx = start_byte_idx + str_utf_start(prev_line, start_byte_idx) - char_idx = byte_to_utf(prev_line, byte_idx, offset_encoding) + --- Convert to 0 based for input, and from 0 based for output + char_idx = vim.str_utfindex(prev_line, offset_encoding, byte_idx - 1) + 1 end -- Return the start difference (shared for new and prev lines) @@ -230,7 +193,7 @@ local function compute_end_range( return { line_idx = lastline - 1, byte_idx = #prev_line + 1, - char_idx = compute_line_length(prev_line, offset_encoding) + 1, + char_idx = str_utfindex(prev_line, offset_encoding) + 1, }, { line_idx = 1, byte_idx = 1, char_idx = 1 } end -- If firstline == new_lastline, the first change occurred on a line that was deleted. @@ -376,7 +339,7 @@ local function compute_range_length(lines, start_range, end_range, offset_encodi local start_line = lines[start_range.line_idx] local range_length --- @type integer if start_line and #start_line > 0 then - range_length = compute_line_length(start_line, offset_encoding) + range_length = str_utfindex(start_line, offset_encoding) - start_range.char_idx + 1 + line_ending_length @@ -389,7 +352,7 @@ local function compute_range_length(lines, start_range, end_range, offset_encodi for idx = start_range.line_idx + 1, end_range.line_idx - 1 do -- Length full line plus newline character if #lines[idx] > 0 then - range_length = range_length + compute_line_length(lines[idx], offset_encoding) + #line_ending + range_length = range_length + str_utfindex(lines[idx], offset_encoding) + #line_ending else range_length = range_length + line_ending_length end |