94 lines
2.1 KiB
Lua
94 lines
2.1 KiB
Lua
-- select_character: 以词定字
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-- 详见: https://github.com/BlindingDark/rime-lua-select-character
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-- http://lua-users.org/lists/lua-l/2014-04/msg00590.html
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local function utf8_sub(s, i, j)
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i = i or 1
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j = j or -1
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if i < 1 or j < 1 then
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local n = utf8.len(s)
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if not n then
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return nil
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end
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if i < 0 then
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i = n + 1 + i
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end
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if j < 0 then
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j = n + 1 + j
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end
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if i < 0 then
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i = 1
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elseif i > n then
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i = n
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end
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if j < 0 then
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j = 1
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elseif j > n then
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j = n
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end
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end
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if j < i then
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return ""
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end
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i = utf8.offset(s, i)
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j = utf8.offset(s, j + 1)
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if i and j then
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return s:sub(i, j - 1)
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elseif i then
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return s:sub(i)
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else
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return ""
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end
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end
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local function first_character(s)
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return utf8_sub(s, 1, 1)
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end
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local function last_character(s)
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return utf8_sub(s, -1, -1)
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end
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local function get_commit_text(context, fun)
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local candidate_text = context:get_selected_candidate().text
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local selected_character = fun(candidate_text)
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context:clear_previous_segment()
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local commit_text = context:get_commit_text()
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context:clear()
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return commit_text .. selected_character
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end
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local function select_character(key, env)
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local engine = env.engine
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local context = engine.context
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local config = engine.schema.config
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local first_key = config:get_string('key_binder/select_first_character') or 'bracketleft'
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local last_key = config:get_string('key_binder/select_last_character') or 'bracketright'
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local commit_text = context:get_commit_text()
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if (key:repr() == first_key and commit_text ~= "") then
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engine:commit_text(get_commit_text(context, first_character))
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return 1 -- kAccepted
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end
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if (key:repr() == last_key and commit_text ~= "") then
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engine:commit_text(get_commit_text(context, last_character))
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return 1 -- kAccepted
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end
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return 2 -- kNoop
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end
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return select_character
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