diff options
Diffstat (limited to 'mac/.config/mpv/script-modules/utf8/charclass/compiletime/builder.lua')
| -rw-r--r-- | mac/.config/mpv/script-modules/utf8/charclass/compiletime/builder.lua | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/mac/.config/mpv/script-modules/utf8/charclass/compiletime/builder.lua b/mac/.config/mpv/script-modules/utf8/charclass/compiletime/builder.lua new file mode 100644 index 0000000..9d9c603 --- /dev/null +++ b/mac/.config/mpv/script-modules/utf8/charclass/compiletime/builder.lua @@ -0,0 +1,128 @@ +return function(utf8) + +local byte = utf8.byte +local unpack = utf8.config.unpack + +local builder = {} +local mt = {__index = builder} + +utf8.regex.compiletime.charclass.builder = builder + +function builder.new() + return setmetatable({}, mt) +end + +function builder:invert() + self.inverted = true + return self +end + +function builder:internal() -- is it enclosed in [] + self.internal = true + return self +end + +function builder:with_codes(...) + local codes = {...} + self.codes = self.codes or {} + + for _, v in ipairs(codes) do + table.insert(self.codes, type(v) == "number" and v or byte(v)) + end + + table.sort(self.codes) + return self +end + +function builder:with_ranges(...) + local ranges = {...} + self.ranges = self.ranges or {} + + for _, v in ipairs(ranges) do + table.insert(self.ranges, v) + end + + return self +end + +function builder:with_classes(...) + local classes = {...} + self.classes = self.classes or {} + + for _, v in ipairs(classes) do + table.insert(self.classes, v) + end + + return self +end + +function builder:without_classes(...) + local not_classes = {...} + self.not_classes = self.not_classes or {} + + for _, v in ipairs(not_classes) do + table.insert(self.not_classes, v) + end + + return self +end + +function builder:include(b) + if not b.inverted then + if b.codes then + self:with_codes(unpack(b.codes)) + end + if b.ranges then + self:with_ranges(unpack(b.ranges)) + end + if b.classes then + self:with_classes(unpack(b.classes)) + end + if b.not_classes then + self:without_classes(unpack(b.not_classes)) + end + else + self.includes = self.includes or {} + self.includes[#self.includes + 1] = b + end + return self +end + +function builder:build() + if self.codes and #self.codes == 1 and not self.inverted and not self.ranges and not self.classes and not self.not_classes and not self.includes then + return "{test = function(self, cc) return cc == " .. self.codes[1] .. " end}" + else + local codes_list = table.concat(self.codes or {}, ', ') + local ranges_list = '' + for i, r in ipairs(self.ranges or {}) do ranges_list = ranges_list .. (i > 1 and ', {' or '{') .. tostring(r[1]) .. ', ' .. tostring(r[2]) .. '}' end + local classes_list = '' + if self.classes then classes_list = "'" .. table.concat(self.classes, "', '") .. "'" end + local not_classes_list = '' + if self.not_classes then not_classes_list = "'" .. table.concat(self.not_classes, "', '") .. "'" end + + local subs_list = '' + for i, r in ipairs(self.includes or {}) do subs_list = subs_list .. (i > 1 and ', ' or '') .. r:build() .. '' end + + local src = [[cl.new():with_codes( + ]] .. codes_list .. [[ + ):with_ranges( + ]] .. ranges_list .. [[ + ):with_classes( + ]] .. classes_list .. [[ + ):without_classes( + ]] .. not_classes_list .. [[ + ):with_subs( + ]] .. subs_list .. [[ + )]] + + if self.inverted then + src = src .. ':invert()' + end + + return src + end +end + +return builder + +end |
