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############################################################################
#
# File: xtable.icn
#
# Subject: Program to show character code translations
#
# Author: Robert J. Alexander, modified by Alan Beale
#
# Date: July 20, 1991
#
############################################################################
#
# This file is in the public domain.
#
############################################################################
#
# Program to print various character translation tables. See
# procedure help() for the capabilities.
#
############################################################################
#
# Links: options, colmize, hexcvt, ebcdic
#
############################################################################
link options, colmize, hexcvt, ebcdic
global Graphic, Conv
procedure main(arg)
local opt
opt := options(arg,"acedo")
Conv := if \opt["d"] then "d" else if \opt["o"] then "o"
init()
every write(colmize(
if \opt["a"] then ASCII()
else if \opt["e"] then EBCDIC()
else if \opt["c"] then ASCIICtrl()
else help()
))
end
procedure help()
write("Usage: xtable -<option>")
write("Options:")
write("\ta: ASCII table")
write("\tc: ASCII control char table")
write("\te: EBCDIC table")
write("\td: decimal numbers")
write("\te: octal numbers")
end
procedure init()
Graphic := cset(Ascii128()[33:-1])
end
procedure ASCII()
local c,i,lst,a128
lst := []
a128 := Ascii128()
every c := !a128 do {
i := AsciiOrd(c)
if not any(Graphic,c) then {
c := image(c)[2:-1]
if match("\\x",c) then next
}
put(lst,"| " || convert(i) || " " || c)
}
return lst
end
procedure ASCIICtrl()
local a,c,ctrls,i,lst,a128
ctrls := "\^ \^!\^"\^#\^$\^%\^&\^'\^(\^)\^*\^+\^,\^-\^.\^/_
\^0\^1\^2\^3\^4\^5\^6\^7\^8\^9\^:\^;\^<\^=\^>\^?\^@_
\^A\^B\^C\^D\^E\^F\^G\^H\^I\^J\^K\^L\^M_
\^N\^O\^P\^Q\^R\^S\^T\^U\^V\^W\^X\^Y\^Z_
\^[\^\\^]\^^\^_\^`_
\^a\^b\^c\^d\^e\^f\^g\^h\^i\^j\^k\^l\^m_
\^n\^o\^p\^q\^r\^s\^t\^u\^v\^w\^x\^y\^z_
\^{\^|\^}\^~"
lst := []
a128 := Ascii128()
a := create !a128[33:-1]
every c := !ctrls do {
i := AsciiOrd(c)
put(lst,"| " || convert(i) || " ^" || @a)
}
return lst
end
procedure EBCDIC()
local EBCDICMap,c,i,lst
EBCDICMap := repl(".",64) || # 00 - 3F
" ...........<(+|&.........!$*);^" || # 40 - 5F
"-/.........,%_>?.........`:#@'=\"" || # 60 - 7F
".abcdefghi.......jklmnopqr......" || # 80 - 9F
".~stuvwxyz...[...............].." || # A0 - BF
"{ABCDEFGHI......}JKLMNOPQR......" || # C0 - CF
"\\.STUVWXYZ......0123456789......" # E0 - FF
lst := []
i := -1
every c := !EBCDICMap do {
i +:= 1
if i = 16r4B | "." ~== c then
put(lst,"| " || convert(i) || " " || c)
}
return lst
end
procedure convert(n)
return case Conv of {
"d": right(n,3,"0")
"o": octstring(n,3)
default: hexstring(n,2)
}
end
#
# octstring() -- Returns a string that is the octal
# representation of the argument.
#
procedure octstring(i,n)
local s
i := integer(i) | fail
if i = 0 then s := "0"
else {
s := ""
while i ~= 0 do {
s := iand(i,7) || s
i := ishift(i,-3)
}
}
s := right(s,\n,"0")
return s
end
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