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Straddling checkerboard (view source)

Revision as of 11:30, 10 April 2022

16,573 bytes added ,  2 years ago
m
→‎{{header|Phix}}: syntax coloured, made p2js compatible
m (→‎{{header|REXX}}: added whitespace.)
m (→‎{{header|Phix}}: syntax coloured, made p2js compatible)
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=={{header|Phix}}==
{{trans|C}}
<!--<lang Phix>function read_table(string cbphixonline)-->
<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
sequence encode = repeat("",128),
<span style="color: #008080;">function</span> <span style="color: #000000;">read_table</span><span style="color: #0000FF;">(</span><span style="color: #004080;">string</span> <span style="color: #000000;">cb</span><span style="color: #0000FF;">)</span>
decode = repeat(0,128),
<span style="color: #004080;">sequence</span> <span style="color: #000000;">encode</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">repeat</span><span style="color: #0000FF;">(</span><span style="color: #008000;">""</span><span style="color: #0000FF;">,</span><span style="color: #000000;">128</span><span style="color: #0000FF;">),</span>
row = {0}
<span style="color: #000000;">decode</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">repeat</span><span style="color: #0000FF;">(</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">128</span><span style="color: #0000FF;">),</span>
if length(cb)!=30 then crash("table wrong length") end if
<span style="color: #000000;">row</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">}</span>
for i=1 to 30 do
<span style="color: #008080;">if</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cb</span><span style="color: #0000FF;">)!=</span><span style="color: #000000;">30</span> <span style="color: #008080;">then</span> <span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"table wrong length"</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
integer c = cb[i]
<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">30</span> <span style="color: #008080;">do</span>
if c=' ' then
<span style="color: #004080;">integer</span> <span style="color: #000000;">c</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">cb</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]</span>
row &= i-1
<span style="color: #008080;">if</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">=</span><span style="color: #008000;">' '</span> <span style="color: #008080;">then</span>
else
<span style="color: #000000;">row</span> <span style="color: #0000FF;">&=</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span>
integer code = row[floor((i-1)/10)+1]*10+mod((i-1),10)
<span encode[c] style="color: sprintf("%d#008080;",code)>else</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">code</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">row</span><span style="color: #0000FF;">[</span><span style="color: #7060A8;">floor</span><span style="color: #0000FF;">((</span><span style="color: #000000;">i</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)/</span><span style="color: #000000;">10</span><span style="color: #0000FF;">)+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]*</span><span style="color: #000000;">10</span><span style="color: #0000FF;">+</span><span style="color: #7060A8;">mod</span><span style="color: #0000FF;">((</span><span style="color: #000000;">i</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">),</span><span style="color: #000000;">10</span><span style="color: #0000FF;">)</span>
decode[code+1] = c
<span style="color: #000000;">encode</span><span style="color: #0000FF;">[</span><span style="color: #000000;">c</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%d"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">code</span><span style="color: #0000FF;">)</span>
end if
<span style="color: #000000;">decode</span><span style="color: #0000FF;">[</span><span style="color: #000000;">code</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">c</span>
end for
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
return {encode, decode}
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
end function
<span style="color: #008080;">return</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">encode</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">decode</span><span style="color: #0000FF;">}</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
function encipher(sequence encode, string in, bool strip=false)
string out = ""
<span style="color: #008080;">function</span> <span style="color: #000000;">encipher</span><span style="color: #0000FF;">(</span><span style="color: #004080;">sequence</span> <span style="color: #000000;">encode</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">string</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">bool</span> <span style="color: #000000;">strip</span><span style="color: #0000FF;">=</span><span style="color: #004600;">false</span><span style="color: #0000FF;">)</span>
for i=1 to length(in) do
<span style="color: #004080;">string</span> <span style="color: #000000;">res</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">""</span>
integer c = upper(in[i]), code
<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">s</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">do</span>
if c>='0' and c<='9' then
<span style="color: #004080;">integer</span> <span style="color: #000000;">c</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">upper</span><span style="color: #0000FF;">(</span><span style="color: #000000;">s</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]),</span> <span style="color: #000000;">code</span>
out &= encode['.']&c
<span style="color: #008080;">if</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">>=</span><span style="color: #008000;">'0'</span> <span style="color: #008080;">and</span> <span style="color: #000000;">c</span><span style="color: #0000FF;"><=</span><span style="color: #008000;">'9'</span> <span style="color: #008080;">then</span>
elsif c>='A' and c<='Z' then
<span style="color: #000000;">res</span> <span style="color: #0000FF;">&=</span> <span style="color: #000000;">encode</span><span style="color: #0000FF;">[</span><span style="color: #008000;">'.'</span><span style="color: #0000FF;">]&</span><span style="color: #000000;">c</span>
out &= encode[c]
<span style="color: #008080;">elsif</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">>=</span><span style="color: #008000;">'A'</span> <span style="color: #008080;">and</span> <span style="color: #000000;">c</span><span style="color: #0000FF;"><=</span><span style="color: #008000;">'Z'</span> <span style="color: #008080;">then</span>
elsif not strip or c='/' then -- (see note)
<span style="color: #000000;">res</span> <span style="color: #0000FF;">&=</span> <span style="color: #000000;">encode</span><span style="color: #0000FF;">[</span><span style="color: #000000;">c</span><span style="color: #0000FF;">]</span>
out &= encode['/']
<span style="color: #008080;">elsif</span> <span style="color: #008080;">not</span> <span style="color: #000000;">strip</span> <span style="color: #008080;">or</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">=</span><span style="color: #008000;">'/'</span> <span style="color: #008080;">then</span> <span style="color: #000080;font-style:italic;">-- (see note)</span>
end if
<span style="color: #000000;">res</span> <span style="color: #0000FF;">&=</span> <span style="color: #000000;">encode</span><span style="color: #0000FF;">[</span><span style="color: #008000;">'/'</span><span style="color: #0000FF;">]</span>
end for
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
return out
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
end function
<span style="color: #008080;">return</span> <span style="color: #000000;">res</span>
 
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
function decipher(sequence decode, string in, bool strip=false)
string out = ""
<span style="color: #008080;">function</span> <span style="color: #000000;">decipher</span><span style="color: #0000FF;">(</span><span style="color: #004080;">sequence</span> <span style="color: #000000;">decode</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">string</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">bool</span> <span style="color: #000000;">strip</span><span style="color: #0000FF;">=</span><span style="color: #004600;">false</span><span style="color: #0000FF;">)</span>
integer i = 1
<span style="color: #004080;">string</span> <span style="color: #000000;">res</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">""</span>
while i<=length(in) do
<span style="color: #004080;">integer</span> <span style="color: #000000;">i</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span>
integer c = in[i]-'0'+1
<span style="color: #008080;">while</span> <span style="color: #000000;">i</span><span style="color: #0000FF;"><=</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">s</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">do</span>
if decode[c]=0 then
<span style="color: #004080;">integer</span> <span style="color: #000000;">c</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]-</span><span style="color: #008000;">'0'</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span>
i += 1
<span style="color: #008080;">if</span> <span style="color: #000000;">decode</span><span style="color: #0000FF;">[</span><span style="color: #000000;">c</span><span style="color: #0000FF;">]=</span><span style="color: #000000;">0</span> <span style="color: #008080;">then</span>
c = (c-1)*10+in[i]-'0'+1
<span style="color: #000000;">i</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
end if
<span style="color: #000000;">c</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">(</span><span style="color: #000000;">c</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)*</span><span style="color: #000000;">10</span><span style="color: #0000FF;">+</span><span style="color: #000000;">s</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]-</span><span style="color: #008000;">'0'</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span>
integer d = decode[c]
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
if d='.' then
<span style="color: #004080;">integer</span> <span style="color: #000000;">d</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">decode</span><span style="color: #0000FF;">[</span><span style="color: #000000;">c</span><span style="color: #0000FF;">]</span>
i += 1
<span style="color: #008080;">if</span> <span style="color: #000000;">d</span><span style="color: #0000FF;">=</span><span style="color: #008000;">'.'</span> <span style="color: #008080;">then</span>
d = in[i]
<span style="color: #000000;">i</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
elsif d='/' and not strip then -- (see note)
<span style="color: #000000;">d</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]</span>
d = ' '
<span style="color: #008080;">elsif</span> <span style="color: #000000;">d</span><span style="color: #0000FF;">=</span><span style="color: #008000;">'/'</span> <span style="color: #008080;">and</span> <span style="color: #008080;">not</span> <span style="color: #000000;">strip</span> <span style="color: #008080;">then</span> <span style="color: #000080;font-style:italic;">-- (see note)</span>
end if
<span style="color: #000000;">d</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">' '</span>
out &= d
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
i += 1
<span style="color: #000000;">res</span> <span style="color: #0000FF;">&=</span> <span style="color: #000000;">d</span>
end while
<span style="color: #000000;">i</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
return out
<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
end function
<span style="color: #008080;">return</span> <span style="color: #000000;">res</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
constant cb = "ET AON RIS"&
"BCDFGHJKLM"&
<span style="color: #008080;">constant</span> <span style="color: #000000;">cb</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"ET AON RIS"</span><span style="color: #0000FF;">&</span>
"PQ/UVWXYZ."
<span style="color: #008000;">"BCDFGHJKLM"</span><span style="color: #0000FF;">&</span>
sequence {encode,decode} = read_table(cb)
<span style="color: #008000;">"PQ/UVWXYZ."</span>
 
<span style="color: #004080;">sequence</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">encode</span><span style="color: #0000FF;">,</span><span style="color: #000000;">decode</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">read_table</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cb</span><span style="color: #0000FF;">)</span>
-- Note there is a subtle difference in space handling, to exactly match other outputs try
-- {encode,decode} = read_table("HOL MES RTABCDFGIJKNPQUVWXYZ/.") instead of
<span style="color: #000080;font-style:italic;">-- Note there is a subtle difference in space handling, to exactly match other outputs try
-- {encode,decode} = read_table("HOL MES RTABCDFGIJKNPQUVWXYZ./"), and
-- {encode,decode} = read_table("ETHOL AONMES RISBCDFGHJKLMPQ.UVWXYZRTABCDFGIJKNPQUVWXYZ/.") instead of
-- {encode,decode} = read_table("ETHOL AONMES RISBCDFGHJKLMPQ/UVWXYZRTABCDFGIJKNPQUVWXYZ./"), and
-- {encode,decode} = read_table("ET AON RISBCDFGHJKLMPQ.UVWXYZ/") instead of
 
-- {encode,decode} = read_table("ET AON RISBCDFGHJKLMPQ/UVWXYZ.")</span>
string msg = "In the winter 1965/we were hungry/just barely alive"
printf(1,"message: %s\n", {msg})
<span style="color: #004080;">string</span> <span style="color: #000000;">msg</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"In the winter 1965/we were hungry/just barely alive"</span>
string enc = encipher(encode, msg),
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"message: %s\n"</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">msg</span><span style="color: #0000FF;">})</span>
dec = decipher(decode, enc)
<span style="color: #004080;">string</span> <span style="color: #000000;">enc</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">encipher</span><span style="color: #0000FF;">(</span><span style="color: #000000;">encode</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">msg</span><span style="color: #0000FF;">),</span>
printf(1,"encoded: %s\n", {enc})
<span style="color: #000000;">dec</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">decipher</span><span style="color: #0000FF;">(</span><span style="color: #000000;">decode</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">enc</span><span style="color: #0000FF;">)</span>
printf(1,"decoded: %s\n", {dec})
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"encoded: %s\n"</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">enc</span><span style="color: #0000FF;">})</span>
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"decoded: %s\n"</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">dec</span><span style="color: #0000FF;">})</span>
printf(1,"\nNo spaces:\n")
enc = encipher(encode, msg, true)
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"\nNo spaces:\n"</span><span style="color: #0000FF;">)</span>
dec = decipher(decode, enc, true)
<span style="color: #000000;">enc</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">encipher</span><span style="color: #0000FF;">(</span><span style="color: #000000;">encode</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">msg</span><span style="color: #0000FF;">,</span> <span style="color: #004600;">true</span><span style="color: #0000FF;">)</span>
printf(1,"encoded: %s\n", {enc})
<span style="color: #000000;">dec</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">decipher</span><span style="color: #0000FF;">(</span><span style="color: #000000;">decode</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">enc</span><span style="color: #0000FF;">,</span> <span style="color: #004600;">true</span><span style="color: #0000FF;">)</span>
printf(1,"decoded: %s\n", {dec})</lang>
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"encoded: %s\n"</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">enc</span><span style="color: #0000FF;">})</span>
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"decoded: %s\n"</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">dec</span><span style="color: #0000FF;">})</span>
<!--</lang>-->
{{out}}
<pre>
Petelomax
7,795

edits

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