ページスクレープしたテキストをデータベースに登録する為、seleniumやsoupを使えば、とったテキストが整ってる場合は、自分のプログラムに関数を入れ処理出来ますが、コピペしてエクセルに貼り付けてSQLにしないと出来ないような整理されてないソースだったので、MySQLのUDFで作ってみました。

CREATE DEFINER=`root`@`localhost` FUNCTION `fc_decLL_from_timeLL`(
	`srctxt` VARCHAR(20)
)
RETURNS double
LANGUAGE SQL
NOT DETERMINISTIC
CONTAINS SQL
SQL SECURITY DEFINER
COMMENT '時刻経緯度十進変換関数'
BEGIN

DECLARE resLL DOUBLE DEFAULT 0;      -- decimaled return value 

DECLARE pos_comma TINYINT;           -- chart index of .
DECLARE txt_int_part VARCHAR(7);     -- always 7char or 6char
DECLARE txt_dec_part VARCHAR(2);     -- decimal part text
DECLARE chr_nesw CHAR(1);            -- north or east or south or west 

DECLARE txt_int VARCHAR(3);          -- 2 char or 3 char
DECLARE txt_min CHAR(2);             -- always 2 char
DECLARE txt_sec CHAR(2);             -- always 2 char


SET pos_comma = INSTR(srctxt, '.');
SET txt_int_part = LEFT(srctxt, pos_comma - 1);

SET txt_dec_part = SUBSTR(srctxt, pos_comma + 1, pos_comma + 4);
SET txt_dec_part = TRIM('N' FROM txt_dec_part);
SET txt_dec_part = TRIM('S' FROM txt_dec_part);
SET txt_dec_part = TRIM('W' FROM txt_dec_part);
SET txt_dec_part = TRIM('E' FROM txt_dec_part);

-- 整数部分、分の切り取り
IF LENGTH(txt_int_part) = 5 THEN
  SET txt_int = LEFT(txt_int_part, 1);
  SET txt_min = MID(txt_int_part, 2, 2);
ELSEIF LENGTH(txt_int_part) = 6 THEN
  SET txt_int = LEFT(txt_int_part, 2);
  SET txt_min = MID(txt_int_part, 3, 2);
ELSEIF LENGTH(txt_int_part) = 7 THEN
  SET txt_int = LEFT(txt_int_part, 3);
  SET txt_min = MID(txt_int_part, 4, 2);
END IF;

-- 秒は常に右2文字
SET txt_sec = RIGHT(txt_int_part, 2);

SET chr_nesw = RIGHT(srctxt, 1);

SET resLL = CAST(txt_int AS UNSIGNED) + 
            CAST(txt_min AS UNSIGNED) / 60 +
            CAST(txt_sec AS UNSIGNED) / 3600 +
            CAST(txt_dec_part AS UNSIGNED) / 360000;

-- 南半球、西半球の場合            
IF (chr_nesw = 'S' OR chr_nesw = 'W') THEN
  SET resLL = resLL * -1;
END IF;            
 
-- debug
-- INSERT INTO tst (fld0, fld1) VALUES(txt_int_part, txt_dec_part);
-- INSERT INTO tst (fld0, fld1, fld2) VALUES(txt_int, txt_min, txt_sec);

  
RETURN resLL;  
  
END

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