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Ingy döt Net 2024-10-16 18:07:41 -07:00
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24
Task/Use-another-language-to-call-a-function/Phix/use-another-language-to-call-a-function.phix
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@ -1,13 +1,11 @@
(notonline)-->
<span style="color: #008080;">without</span> <span style="color: #008080;">js</span> <span style="color: #000080;font-style:italic;">-- (peek/poke, call_back)</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">Here_am_I</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"Here am I"</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">Query</span><span style="color: #0000FF;">(</span><span style="color: #004080;">atom</span> <span style="color: #000000;">pData</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">pLength</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">len</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peekNS</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pLength</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">machine_word</span><span style="color: #0000FF;">(),</span><span style="color: #000000;">0</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #7060A8;">poke_string</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pData</span><span style="color: #0000FF;">,</span><span style="color: #000000;">len</span><span style="color: #0000FF;">,</span><span style="color: #000000;">Here_am_I</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">0</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #7060A8;">pokeN</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pLength</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">Here_am_I</span><span style="color: #0000FF;">)+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">machine_word</span><span style="color: #0000FF;">())</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">1</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">Query_cb</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">call_back</span><span style="color: #0000FF;">(</span><span style="color: #000000;">Query</span><span style="color: #0000FF;">)</span>
<!--
without js -- (peek/poke, call_back)
constant Here_am_I = "Here am I"
function Query(atom pData, pLength)
integer len = peekNS(pLength,machine_word(),0)
if poke_string(pData,len,Here_am_I) then
return 0
end if
pokeN(pLength,length(Here_am_I)+1,machine_word())
return 1
end function
constant Query_cb = call_back(Query)