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DOMAINS

file = input ; output

strlist = string*

mul_strlist = strlist*



PREDICATES

start



% Read input file

% mul_string (o)

reading(mul_strlist)



% Create (multi) list of word

% string Line (i)

% strlist Old string (i)

% strlist New string (i)

% mul_strlist Temp string (o)

% mul_strlist Output string (o)

createlist(string, strlist, strlist, mul_strlist, mul_strlist)



% strlist List (i)

% mul_strlist Temp string (o)

% mul_strlist Output string (o)

reverselist(strlist, strlist, strlist)



% string Prefix (i)

% mul_strlist Words (i)

% strlist Output list (o)

searchin_list(string, strlist)



searchin_mullist(string, mul_strlist)



% string Prefix (i)

% string Word (i)

prefix(string, string)



saveword(string)



GOAL

clearwindow,

start.



CLAUSES

start:-

openread(input, "in.txt"),

readdevice(input),

openwrite(output, "out.txt"),

closefile(output),



openmodify(output, "out.txt"),

writedevice(output),

reading([]).



reading(Mlist):-

not(eof(input)),

readln(Line),

createlist(Line, [], New_list, MList, List2),

reading(List2).



% EOF

reading(Mlist):-

%write(Mlist),

readdevice(keyboard),

readln(Pattern),

searchin_mullist(Pattern, Mlist),

closefile(input),

closefile(output).



createlist(Line, Old_list, New_list, List1, List2):-

Line <> "",

% Sting, Token, Rest

fronttoken(Line, Token, Rest),

New_list = [Token | Old_list],

createlist(Rest, New_list, Blank_list, List1, List2).



% List was created -> reverse it

createlist(_, Old_list, [], List1, List2):-

reverselist(Old_list, [], New_list),

List2 = [New_list | List1].



reverselist([], Inputlist, Inputlist).

reverselist([Head | Tail], List1, List2):-

reverselist(Tail, [Head | List1], List2).



searchin_mullist(Pattern, []).

searchin_mullist(Pattern, [List | Rest]):-

searchin_list(Pattern, List), searchin_mullist(Pattern, Rest), filepos(output, 0, 0), not(eof(output));

eof(output), str_len(Pattern, L), LL = L - 1, L > 1,

frontstr(LL, Pattern, H, T), searchin_mullist(H, [List|Rest]).



searchin_list(Pattern, []).

searchin_list(Pattern, [Word|Rest]):-

prefix(Pattern, Word), searchin_list(Pattern, Rest);

searchin_list(Pattern, Rest).



prefix(Pattern, Word):-

str_len(Pattern, L), frontstr(L, Word, H, T), H = Pattern, saveword(Word).



saveword(Word):- write(Word, 'n').
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• 18 окт 2014, 16:18


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