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%D \module
%D [ file=m-morse,
%D version=2010.12.10,
%D title=\CONTEXT\ Extra Modules,
%D subtitle=Morse,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright=PRAGMA]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
% todo: act upon the node list
% make it a buffer operation
% nice in cld manual
\startluacode
moduledata.morse = moduledata.morse or { }
local morse = moduledata.morse
local utfcharacters, gsub = string.utfcharacters, string.gsub
local ucchars, shchars = characters.ucchars, characters.shchars
local codes = {
["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"] = "——··",
["0"] = "—————",
["1"] = "·————",
["2"] = "··———",
["3"] = "···——",
["4"] = "····—",
["5"] = "·····",
["6"] = "—····",
["7"] = "——···",
["8"] = "———··",
["9"] = "————·",
["."] = "·—·—·—",
[","] = "——··——",
[":"] = "———···",
[";"] = "—·—·—",
["?"] = "··——··",
["!"] = "—·—·——",
["-"] = "—····—",
["/"] = "—··—· ",
["("] = "—·——·",
[")"] = "—·——·—",
["="] = "—···—",
["@"] = "·——·—·",
["'"] = "·————·",
['"'] = "·—··—·",
["À"] = "·——·—",
["Å"] = "·——·—",
["Ä"] = "·—·—",
["Æ"] = "·—·—",
["Ç"] = "—·—··",
["É"] = "··—··",
["È"] = "·—··—",
["Ñ"] = "——·——",
["Ö"] = "———·",
["Ø"] = "———·",
["Ü"] = "··——",
["ß"] = "··· ···",
}
morse.codes = codes
setmetatable(codes, { __index = function(t,k)
if k then
local u = ucchars[k]
local v = rawget(t,u) or rawget(t,shchars[u]) or false
t[k] = v
return v
else
return false
end
end })
local MorseBetweenWords = context.MorseBetweenWords
local MorseBetweenCharacters = context.MorseBetweenCharacters
local MorseLong = context.MorseLong
local MorseShort = context.MorseShort
local MorseSpace = context.MorseSpace
local MorseUnknown = context.MorseUnknown
local function toverbose(str)
str = gsub(str,"%s*+%s*","+")
str = gsub(str,"%s+"," ")
local done = false
for m in utfcharacters(str) do
if done then
MorseBetweenCharacters()
end
if m == "·" or m == "." then
MorseShort()
done = true
elseif m == "—" or m == "-" then
MorseLong()
done = true
elseif m == " " then
if done then
MorseBetweenCharacters()
end
done = false
elseif m == "+" then
MorseBetweenWords()
done = false
else
MorseUnknown(m)
end
end
end
local function toregular(str)
local inmorse = false
for s in utfcharacters(str) do
local m = codes[s]
if m then
if inmorse then
MorseBetweenWords()
else
inmorse = true
end
local done = false
for m in utfcharacters(m) do
if done then
MorseBetweenCharacters()
else
done = true
end
if m == "·" then
MorseShort()
elseif m == "—" then
MorseLong()
elseif m == " " then
MorseBetweenCharacters()
end
end
inmorse = true
elseif s == "\n" or s == " " then
MorseSpace()
inmorse = false
else
if inmorse then
MorseBetweenWords()
else
inmorse = true
end
MorseUnknown(s)
end
end
end
local function tomorse(str,verbose)
if verbose then
toverbose(str)
else
toregular(str)
end
end
morse.tomorse = tomorse
function morse.filetomorse(name,verbose)
tomorse(resolvers.loadtexfile(name),verbose)
end
function morse.showtable()
context.starttabulate { "|l|l|" } -- { "|l|l|l|" }
for k, v in table.sortedpairs(codes) do
context.NC() context(k)
-- context.NC() context(v)
context.NC() tomorse(v,true)
context.NC() context.NR()
end
context.stoptabulate()
end
\stopluacode
\unprotect
% todo: \setupmorse, but probably it's not worth the trouble.
\def\MorseWidth {0.4em}
\def\MorseHeight {0.2em}
%def\MorseShort {\dontleavehmode\blackrule[\c!height=\MorseHeight,\c!width=\dimexpr\MorseWidth]}
%def\MorseLong {\dontleavehmode\blackrule[\c!height=\MorseHeight,\c!width=3\dimexpr\MorseWidth]}
\def\MorseShort {\dontleavehmode\vrule\!!width \dimexpr\MorseWidth\!!height\MorseHeight\!!depth\zeropoint\relax}
\def\MorseLong {\dontleavehmode\vrule\!!width3\dimexpr\MorseWidth\!!height\MorseHeight\!!depth\zeropoint\relax}
\def\MorseBetweenCharacters {\kern\MorseWidth}
\def\MorseBetweenWords {\hskip3\dimexpr\MorseWidth\relax}
\def\MorseSpace {\hskip7\dimexpr\MorseWidth\relax}
\def\MorseUnknown #text{[\detokenize{#text}]}
\def\MorseCode #text{\ctxlua{moduledata.morse.tomorse(\!!bs#text\!!es,true)}}
\def\MorseString #text{\ctxlua{moduledata.morse.tomorse(\!!bs#text\!!es)}}
\def\MorseFile #text{\ctxlua{moduledata.morse.filetomorse("#text")}}
\def\MorseTable {\ctxlua{moduledata.morse.showtable()}}
\let\Morse \MorseString
\protect
\doifnotmode{demo}{\endinput}
\starttext
\MorseTable
\startlines
\MorseCode{—·—· ——— —· — · —··— —+—— —·— ·· ···—}
\MorseCode{—·—· ——— —· — · —··— — + —— —·— ·· ···—}
\Morse{ÀÁÂÃÄÅàáâãäå}
\Morse{ÆÇæç}
\Morse{ÈÉÊËèéêë}
\Morse{ÌÍÎÏìíîï}
\Morse{Ññ}
\Morse{ÒÓÔÕÖòóôõö}
\Morse{Øø}
\Morse{ÙÚÛÜùúû}
\Morse{Ýýÿ}
\Morse{ß}
\Morse{Ţţ}
\stoplines
\Morse{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}
\stoptext
|
