Refactored wareki.fs to data-driven style
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wareki.fs
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wareki.fs
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\ wareki.fs - Display WAREKI and Anno Domini corresponding years
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\ +JMJ 2020 David Meyer <papa@sdf.org>
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\ +JMJ 2022 David Meyer <papa@sdf.org>
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\ 2020/3/31 Add Reiwa era
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\ 2022/2/9 Refactor and convert to data-driven
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\ help-wareki - Display module help
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: help-wareki ( -- )
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@ -16,107 +17,79 @@
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." TAISHO ( u -- ) Display A.D. year corresponding to Taishou era year." cr
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;
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\ nengo - Display NENGO for A.D. (Meiji, Taishou, Shouwa,
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\ Heisei, Reiwa eras only)
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: nengo ( u -- )
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dup 1868 < if
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." ERROR: Year precedes MEIJI era " drop
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else
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dup 1868 = if
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." MEIJI GANNEN (Sep 8 -) " drop
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else
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dup 1912 < if
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." MEIJI " 1867 - .
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else
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dup 1912 = if
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." MEIJI 45/TAISHO GANNEN (Jul 30-) " drop
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else
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dup 1926 < if
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." TAISHO " 1911 - .
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else
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dup 1926 = if
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." TAISHO 15/SHOWA GANNEN (Dec 25-) " drop
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else
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dup 1989 < if
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." SHOWA " 1925 - .
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else
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dup 1989 = if
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." SHOWA 64/HEISEI GANNEN (Jan 8-) " drop
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else
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dup 2019 < if
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." HEISEI " 1988 - .
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else
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dup 2019 = if
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." HEISEI 31/REIWA GANNEN (May 1-) " drop
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else
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." REIWA " 2018 - .
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then
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then
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then
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then
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then
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then
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then
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then
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0 constant ERAM \ MEIJI era index
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1 constant ERAT \ TAISHO era index
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2 constant ERAS \ SHOWA era index
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3 constant ERAH \ HEISEI era index
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4 constant ERAR \ REIWA era index
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create ERALFGY \ Era last full Gregorian year (M/T/S/H/R)
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1867 , 1911 , 1925 , 1988 , 2018 ,
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create ERALYR \ Era last year (M/T/S/H)
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45 , 15 , 64 , 31 ,
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create ERANAME \ Era name length/string (M/T/S/H/R)
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5 , 77 c, 69 c, 73 c, 74 c, 73 c, 0 c, \ "MEIJI"
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6 , 84 c, 65 c, 73 c, 83 c, 72 c, 79 c, \ "TAISHO"
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5 , 83 c, 72 c, 79 c, 87 c, 65 c, 0 c, \ "SHOWA"
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6 , 72 c, 69 c, 73 c, 83 c, 69 c, 73 c, \ "HEISEI"
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5 , 82 c, 69 c, 73 c, 87 c, 65 c, 0 c, \ "REIWA"
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create ERADATE \ Era start date length/string (M/T/S/H/R)
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5 , 83 c, 101 c, 112 c, 32 c, 56 c, 0 c, \ "Sep 8"
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6 , 74 c, 117 c, 108 c, 32 c, 51 c, 48 c, \ "Jul 30"
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6 , 68 c, 101 c, 99 c, 32 c, 50 c, 53 c, \ "Dec 25"
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5 , 74 c, 97 c, 110 c, 32 c, 56 c, 0 c, \ "Jan 8"
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5 , 77 c, 97 c, 121 c, 32 c, 49 c, 0 c, \ "May 1"
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: []@ ( uidx a-base -- a-addr ) swap cells + @ ;
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: []$ ( uidx a-base -- c-addr ulen )
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swap 1 cells 6 chars + * + dup 1 cells + swap @
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;
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: ng>gy ( ungy uera -- ugy ) ERALFGY []@ + ;
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: gy>ng ( ugy -- ungy uera )
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ERAR begin
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dup ERALFGY []@ rot dup rot <= while swap 1-
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repeat
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over ERALFGY []@ - swap
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;
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: prera ( uera -- ) ERANAME []$ type space ;
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: preradt ( uera -- ) ERADATE []$ type ;
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: prgy ( ug -- ) ." AD " . ;
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: ngyok? ( uera ungy -- f )
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dup 0< if
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2drop false else
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swap ERALYR []@ 1+ > if false else true then
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then
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;
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: nengo ( ugy -- )
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dup ERAM ERALFGY []@ <= if
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drop ." Year prior to MEIJI era unsupported " else
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gy>ng over 1 = if
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dup 1- dup prera ERALYR []@ . ." / "
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dup prera ." GANNEN (" preradt ." -) " drop else
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prera . then
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then
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then
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;
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\ meiji - Display A.D. for Meiji era NENGO.
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: meiji ( u -- )
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dup 0= if
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." ERROR: NENGO < 1 " drop
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else
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dup 45 > if
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." ERROR: NENGO > 45 " drop
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else
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." AD " 1867 + .
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then
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then
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: cvtng ( ungy uera -- )
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2dup swap ngyok? if
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ng>gy prgy else
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2drop ." Invalid NENGO year " then
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;
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\ taisho - Display A.D. for Taishou era NENGO.
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: taisho ( u -- )
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dup 0= if
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." ERROR: NENGO < 1 " drop
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else
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dup 15 > if
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." ERROR: NENGO > 15 " drop
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else
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." AD " 1911 + .
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then
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then
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;
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\ showa - Display A.D. for Shouwa era NENGO.
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: showa ( u -- )
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dup 0= if
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." ERROR: NENGO < 1 " drop
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else
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dup 64 > if
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." ERROR: NENGO > 64 " drop
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else
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." AD " 1925 + .
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then
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then
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;
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\ heisei - Display A.D. for Heisei era NENGO.
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: heisei ( u -- )
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dup 0= if
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." ERROR: NENGO < 1 " drop
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else
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." AD " 1988 + .
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then
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;
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\ reiwa - Display A.D. for Reiwa era NENGO.
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: reiwa ( u -- )
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dup 0= if
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." ERROR: NENGO < 1 " drop
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else
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." AD " 2018 + .
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then
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;
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: meiji ( ungy -- ) ERAM cvtng ;
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: taisho ( ungy -- ) ERAT cvtng ;
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: showa ( ungy -- ) ERAS cvtng ;
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: heisei ( ungy -- ) ERAH cvtng ;
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: reiwa ( ungy -- ) ERAR cvtng ;
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cr ." Type 'help-wareki' for help"
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