2021-01-21 13:40:28 +01:00
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
< html xmlns = "http://www.w3.org/1999/xhtml" > < head >
< title > .< / title >
< style type = "text/css" >
* { color: #000; background: #fff; max-width: 700px; }
tt, pre { background: #dedede; color: #111; font-family: monospace;
white-space: pre; display: block; width: 100%; }
.indentedcode { margin-left: 2em; margin-right: 2em; }
.codeblock {
background: #dedede; color: #111; font-family: monospace;
box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
padding: 7px;
display: block;
}
.indentedlist { margin-left: 2em; color: #000; }
span { white-space: pre; }
.text { color: #000; white-space: pre; background: #dedede; }
.colon { color: #000; background: #dedede; }
.note { color: #000; background: #dedede; }
.str { color: #000; text-decoration: underline; background: #dedede; }
.num { color: #000; background: #dedede; font-weight: bold; font-style: italic; }
.fnum { color: #000; font-weight: bold; background: #dedede; }
.ptr { color: #000; font-weight: bold; background: #dedede; }
.fetch { color: #000; font-style: italic; background: #dedede; }
.store { color: #000; font-style: italic; background: #dedede; }
.char { color: #000; background: #dedede; }
.inst { color: #000; background: #dedede; }
.defer { color: #000; background: #dedede; }
.imm { color: #000; font-weight: bold; background: #dedede; }
.prim { color: #000; font-weight: bolder; background: #dedede; }
.tt { white-space: pre; font-family: monospace; background: #dedede; }
.h1, .h2, .h3, .h4 { white-space: normal; }
.h1 { font-size: 125%; }
.h2 { font-size: 120%; }
.h3 { font-size: 115%; }
.h4 { font-size: 110%; }
.hr { display: block; height: 2px; background: #000000; }
< / style >
< / head > < body >
2022-06-03 12:41:52 +02:00
< p > < br / > < br / >
2021-01-21 13:40:28 +01:00
RETRO releases add and change things. You can use the < span class = "tt" > Version< / span >
variable to determine the version in use and react accordingly.
< br / > < br / >
< span class = 'codeblock' > < span class = "tt" > ```< / span > < br / > < span class = "tt" > < span class = 'fetch' > @Version< / span > < span class = 'num' > #201906< / span > < span class = 'prim' > eq?< / span > < span class = 'imm' > [< / span > < span class = 'str' > 'Needs_2019.6!< / span > s:put nl bye < span class = 'imm' > ]< / span > < span class = 'prim' > if< / span > < / span > < br / >
< span class = "tt" > ```< / span > < / span > < br / > < br / >
This can be also be used to conditionally load compatibility files:
< br / > < br / >
< span class = 'codeblock' > < span class = "tt" > ```< / span > < br / > < span class = "tt" > < span class = 'note' > (If_newer_than_2016.6,_load_aliases_for_renamed_words)< / span > < / span > < br / >
< span class = "tt" > < span class = 'fetch' > @Version< / span > < span class = 'num' > #201906< / span > < span class = 'prim' > gt?< / span > < span class = 'imm' > [< / span > < span class = 'str' > 'Renamed_2019.6.forth< / span > include < span class = 'imm' > ]< / span > < span class = 'prim' > if< / span > < / span > < br / >
< span class = "tt" > ```< / span > < / span > < br / > < br / >
< br / > < br / >
The version is a six digit number encoding the year and month of
the release. So:
< br / > < br / >
< tt class = 'indentedcode' > 201901 is 2019.1< / tt >
< tt class = 'indentedcode' > 201906 is 2019.6< / tt >
< tt class = 'indentedcode' > 201911 is 2019.11< / tt >
< br / > < br / >
A < span class = "tt" > #100 /mod< / span > will suffice to split these if needed.
< / p >
< / body > < / html >
