diff options
Diffstat (limited to 'lua')
| -rw-r--r-- | lua/telescope/previewers.lua | 44 |
1 files changed, 34 insertions, 10 deletions
diff --git a/lua/telescope/previewers.lua b/lua/telescope/previewers.lua index 47b6e0d..f9d8e5b 100644 --- a/lua/telescope/previewers.lua +++ b/lua/telescope/previewers.lua @@ -418,25 +418,49 @@ previewers.help = defaulter(function(_) preview_fn = function(self, entry, status) with_preview_window(status, nil, function() local special_chars = ":~^.?/%[%]%*" + local delim = string.char(9) local escaped = vim.fn.escape(entry.value, special_chars) - local tagfile = vim.fn.expand("$VIMRUNTIME") .. '/doc/tags' - local old_tags = vim.o.tags + local tags = {} - vim.o.tags = tagfile - local taglist = vim.fn.taglist('^' .. escaped .. '$', tagfile) - vim.o.tags = old_tags + local find_rtp_file = function(path, count) + return vim.fn.findfile(path, vim.o.runtimepath, count) + end - if vim.tbl_isempty(taglist) then - taglist = vim.fn.taglist(escaped, tagfile) + local matches = {} + for _,file in pairs(find_rtp_file('doc/tags', -1)) do + local f = assert(io.open(file, "rb")) + for line in f:lines() do + matches = {} + + for match in (line..delim):gmatch("(.-)" .. delim) do + table.insert(matches, match) + end + + table.insert(tags, { + name = matches[1], + filename = matches[2], + cmd = matches[3] + }) + end + f:close() end - if vim.tbl_isempty(taglist) then - return + local search_tags = function(pattern) + local results = {} + for _, tag in pairs(tags) do + if vim.fn.match(tag.name, pattern) ~= -1 then + table.insert(results, tag) + end + end + return results end + local taglist = search_tags('^' .. escaped .. '$') + if taglist == {} then taglist = search_tags(escaped) end + local best_entry = taglist[1] - local new_bufnr = vim.fn.bufnr(best_entry.filename, true) + local new_bufnr = vim.fn.bufnr(find_rtp_file('doc/' .. best_entry.filename), true) vim.api.nvim_buf_set_option(new_bufnr, 'filetype', 'help') vim.api.nvim_win_set_buf(status.preview_win, new_bufnr) |