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Lenguaje
Pascal
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Descripción
Implementar un diccionario
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program program_palabras;
uses cmem, crt, sysutils;
type Comparable = function (const datum1 : pointer; const datum2 : pointer) : integer;
type ForEachFunction = procedure (datum : pointer; params : pointer);
type Palabra = object
palabra : string;
significado : string;
end;
type pPalabra = ^Palabra;
function compare_palabra (const palabra1 : pPalabra; const palabra2 : pPalabra) : integer;
begin
compare_palabra := strcomp (@palabra1^.palabra[1], @palabra2^.palabra[1]);
end;
function read_str (message : string) : string;
var string_var : string;
begin
write (stdout, message, ': ');
readln (string_var);
read_str := string_var;
end;
function read_integer (message : string) : integer;
var integer_var : integer;
begin
write (stdout, message, ': ');
readln (integer_var);
read_integer := integer_var;
end;
function read_field (var file_stream : text; var field : string) : boolean;
var c : char;
begin
field := '';
while not eof (file_stream) do
begin
read (file_stream, c);
if (c=#13) then
continue;
if (c=#9) or (c=#10) then
begin
read_field := true;
exit;
end
else
field := field + c;
end;
read_field := false;
end;
type pinteger = ^integer;
procedure print_palabra (datum : pPalabra; counter : pinteger);
begin
writeln (stdout, 'palabra : ', datum^.palabra);
writeln (stdout, 'significado: ', datum^.significado);
writeln (stdout);
inc (counter^);
end;
type pText = ^text;
procedure print_on_file (datum : pPalabra; file_stream : pText);
begin
write (file_stream^, datum^.palabra, #9);
write (file_stream^, datum^.significado, #10);
end;
type ppointer = ^pointer;
type ppPalabra = ^pPalabra;
function array_insert (array_var : ppointer; var length : integer; datum : pointer) : ppointer;
begin
array_var := realloc (array_var, sizeof (pointer) * (length+1));
array_var[length] := datum;
inc (length);
array_insert := array_var;
end;
function array_search (array_var : ppointer; length : integer; compare: Comparable; const datum : pointer) : pointer;
begin
if length > 0 then
if compare (array_var[0], datum) = 0 then
array_search := array_var[0]
else
array_search := array_search (array_var + 1, length - 1, compare, datum)
else
array_search := nil;
end;
function array_remove (array_var : ppointer; var length : integer; const datum : pointer) : ppointer;
var i : integer = 0;
begin
while (i<length) and (datum<>array_var[i]) do
inc (i);
if i<length then
begin
for i:=i+1 to length-1 do
array_var[i-1] := array_var[i];
dec (length);
array_var := realloc (array_var, sizeof (pointer) * length);
end;
array_remove := array_var;
end;
procedure quick_sort (array_var : ppointer; first_index : integer; last_index : integer; compare: Comparable);
var smaller, bigger : integer;
var pivot : pointer;
begin
smaller := first_index;
bigger := last_index;
if last_index>first_index then
begin
pivot := array_var[(first_index+last_index) div 2];
while smaller <= bigger do
begin
while (smaller < last_index) and (compare (array_var[smaller], pivot)<0) do
inc (smaller);
while (bigger > first_index) and (compare (array_var[bigger], pivot)>0) do
dec (bigger);
if smaller <= bigger then
begin
pivot := array_var[smaller];
array_var[smaller] := array_var[bigger];
array_var[bigger] := pivot;
inc (smaller);
dec (bigger);
end;
end;
if first_index < bigger then
quick_sort (array_var, first_index, bigger, compare);
if smaller < last_index then
quick_sort (array_var, smaller, last_index, compare);
end;
end;
procedure array_foreach (array_var : ppointer; length : integer; params : pointer; func : ForEachFunction);
begin
if length>0 then
begin
func (array_var[0], params);
array_foreach (array_var + 1, length - 1, params, func);
end;
end;
const path = 'palabras.tsv';
var datum : ^Palabra = nil;
var palabra1 : Palabra;
var main_option : char;
var counter : integer;
var field : string = '';
var file_stream : text;
var palabras : ppPalabra = nil;
var length : integer = 0;
begin
counter := 0;
if fileexists (path) then
begin
assign (file_stream, path);
reset (file_stream);
while read_field (file_stream, field) do
begin
new (datum);
datum^.palabra := field;
read_field (file_stream, field);
datum^.significado := field;
palabras := ppPalabra (array_insert (ppointer (palabras), length, datum));
end;
close (file_stream);
end;
repeat
clrscr;
writeln (stdout, 'MEN'#233#10#13);
writeln (stdout, '1.- Altas');
writeln (stdout, '2.- Consultas');
writeln (stdout, '3.- Actualizaciones');
writeln (stdout, '4.- Bajas');
writeln (stdout, '5.- Ordenar registros');
writeln (stdout, '6.- Listar registros');
writeln (stdout, '7.- Salir');
write (stdout, 'Selecciona una opci'#162'n: ');
repeat
main_option := readkey;
until (main_option>='1') and (main_option<='7');
writeln (stdout, main_option, #10#13);
if (palabras = nil) and (main_option <> '1') and (main_option <> '7') then
begin
write (stdout, 'No hay registros.'#10#13#10#13'Presiona una tecla para continuar . . . ');
readkey;
continue;
end;
if main_option<'5' then
begin
palabra1.palabra := read_str ('Ingresa el palabra del palabra');
datum := array_search (ppointer (palabras), length, Comparable(@compare_palabra), @palabra1);
if datum <> nil then
begin
writeln (stdout);
print_palabra (datum, @counter);
end;
end;
if (main_option = '1') and (datum <> nil) then
writeln (stdout, 'El registro ya existe.')
else if (main_option>='2') and (main_option<='4') and (datum = nil) then
writeln (stdout, #10#13'Registro no encontrado.')
else case main_option of
'1':
begin
new (datum);
datum^.palabra := palabra1.palabra;
datum^.significado := read_str ('Ingresa el significado');
palabras := ppPalabra (array_insert (ppointer (palabras), length, datum));
writeln (stdout, #10#13'Registro agregado correctamente.');
end;
'3':
begin
datum^.significado = read_str ('Ingresa el nuevo significado');
writeln (stdout, #10#13'Registro actualizado correctamente.');
end;
'4':
begin
palabras := ppPalabra (array_remove (ppointer (palabras), length, datum));
dispose (datum);
writeln (stdout, 'Registro eliminado correctamente.');
end;
'5':
begin
quick_sort (ppointer (palabras), 0, length - 1, Comparable(@compare_palabra));
writeln (stdout, 'Registros ordenados correctamente.');
end;
'6':
begin
counter := 0;
array_foreach (ppointer (palabras), length, @counter, ForEachFunction (@print_palabra));
writeln (stdout, 'Total de registros: ', counter, '.');
end;
end;
if (main_option<'7') then
begin
write (stdout, #10#13'Presiona una tecla para continuar . . . ');
readkey;
end;
until main_option = '7';
assign (file_stream, path);
rewrite (file_stream);
array_foreach (ppointer (palabras), length, @file_stream, ForEachFunction (@print_on_file));
close (file_stream);
end.
uses cmem, crt, sysutils;
type Comparable = function (const datum1 : pointer; const datum2 : pointer) : integer;
type ForEachFunction = procedure (datum : pointer; params : pointer);
type Palabra = object
palabra : string;
significado : string;
end;
type pPalabra = ^Palabra;
function compare_palabra (const palabra1 : pPalabra; const palabra2 : pPalabra) : integer;
begin
compare_palabra := strcomp (@palabra1^.palabra[1], @palabra2^.palabra[1]);
end;
function read_str (message : string) : string;
var string_var : string;
begin
write (stdout, message, ': ');
readln (string_var);
read_str := string_var;
end;
function read_integer (message : string) : integer;
var integer_var : integer;
begin
write (stdout, message, ': ');
readln (integer_var);
read_integer := integer_var;
end;
function read_field (var file_stream : text; var field : string) : boolean;
var c : char;
begin
field := '';
while not eof (file_stream) do
begin
read (file_stream, c);
if (c=#13) then
continue;
if (c=#9) or (c=#10) then
begin
read_field := true;
exit;
end
else
field := field + c;
end;
read_field := false;
end;
type pinteger = ^integer;
procedure print_palabra (datum : pPalabra; counter : pinteger);
begin
writeln (stdout, 'palabra : ', datum^.palabra);
writeln (stdout, 'significado: ', datum^.significado);
writeln (stdout);
inc (counter^);
end;
type pText = ^text;
procedure print_on_file (datum : pPalabra; file_stream : pText);
begin
write (file_stream^, datum^.palabra, #9);
write (file_stream^, datum^.significado, #10);
end;
type ppointer = ^pointer;
type ppPalabra = ^pPalabra;
function array_insert (array_var : ppointer; var length : integer; datum : pointer) : ppointer;
begin
array_var := realloc (array_var, sizeof (pointer) * (length+1));
array_var[length] := datum;
inc (length);
array_insert := array_var;
end;
function array_search (array_var : ppointer; length : integer; compare: Comparable; const datum : pointer) : pointer;
begin
if length > 0 then
if compare (array_var[0], datum) = 0 then
array_search := array_var[0]
else
array_search := array_search (array_var + 1, length - 1, compare, datum)
else
array_search := nil;
end;
function array_remove (array_var : ppointer; var length : integer; const datum : pointer) : ppointer;
var i : integer = 0;
begin
while (i<length) and (datum<>array_var[i]) do
inc (i);
if i<length then
begin
for i:=i+1 to length-1 do
array_var[i-1] := array_var[i];
dec (length);
array_var := realloc (array_var, sizeof (pointer) * length);
end;
array_remove := array_var;
end;
procedure quick_sort (array_var : ppointer; first_index : integer; last_index : integer; compare: Comparable);
var smaller, bigger : integer;
var pivot : pointer;
begin
smaller := first_index;
bigger := last_index;
if last_index>first_index then
begin
pivot := array_var[(first_index+last_index) div 2];
while smaller <= bigger do
begin
while (smaller < last_index) and (compare (array_var[smaller], pivot)<0) do
inc (smaller);
while (bigger > first_index) and (compare (array_var[bigger], pivot)>0) do
dec (bigger);
if smaller <= bigger then
begin
pivot := array_var[smaller];
array_var[smaller] := array_var[bigger];
array_var[bigger] := pivot;
inc (smaller);
dec (bigger);
end;
end;
if first_index < bigger then
quick_sort (array_var, first_index, bigger, compare);
if smaller < last_index then
quick_sort (array_var, smaller, last_index, compare);
end;
end;
procedure array_foreach (array_var : ppointer; length : integer; params : pointer; func : ForEachFunction);
begin
if length>0 then
begin
func (array_var[0], params);
array_foreach (array_var + 1, length - 1, params, func);
end;
end;
const path = 'palabras.tsv';
var datum : ^Palabra = nil;
var palabra1 : Palabra;
var main_option : char;
var counter : integer;
var field : string = '';
var file_stream : text;
var palabras : ppPalabra = nil;
var length : integer = 0;
begin
counter := 0;
if fileexists (path) then
begin
assign (file_stream, path);
reset (file_stream);
while read_field (file_stream, field) do
begin
new (datum);
datum^.palabra := field;
read_field (file_stream, field);
datum^.significado := field;
palabras := ppPalabra (array_insert (ppointer (palabras), length, datum));
end;
close (file_stream);
end;
repeat
clrscr;
writeln (stdout, 'MEN'#233#10#13);
writeln (stdout, '1.- Altas');
writeln (stdout, '2.- Consultas');
writeln (stdout, '3.- Actualizaciones');
writeln (stdout, '4.- Bajas');
writeln (stdout, '5.- Ordenar registros');
writeln (stdout, '6.- Listar registros');
writeln (stdout, '7.- Salir');
write (stdout, 'Selecciona una opci'#162'n: ');
repeat
main_option := readkey;
until (main_option>='1') and (main_option<='7');
writeln (stdout, main_option, #10#13);
if (palabras = nil) and (main_option <> '1') and (main_option <> '7') then
begin
write (stdout, 'No hay registros.'#10#13#10#13'Presiona una tecla para continuar . . . ');
readkey;
continue;
end;
if main_option<'5' then
begin
palabra1.palabra := read_str ('Ingresa el palabra del palabra');
datum := array_search (ppointer (palabras), length, Comparable(@compare_palabra), @palabra1);
if datum <> nil then
begin
writeln (stdout);
print_palabra (datum, @counter);
end;
end;
if (main_option = '1') and (datum <> nil) then
writeln (stdout, 'El registro ya existe.')
else if (main_option>='2') and (main_option<='4') and (datum = nil) then
writeln (stdout, #10#13'Registro no encontrado.')
else case main_option of
'1':
begin
new (datum);
datum^.palabra := palabra1.palabra;
datum^.significado := read_str ('Ingresa el significado');
palabras := ppPalabra (array_insert (ppointer (palabras), length, datum));
writeln (stdout, #10#13'Registro agregado correctamente.');
end;
'3':
begin
datum^.significado = read_str ('Ingresa el nuevo significado');
writeln (stdout, #10#13'Registro actualizado correctamente.');
end;
'4':
begin
palabras := ppPalabra (array_remove (ppointer (palabras), length, datum));
dispose (datum);
writeln (stdout, 'Registro eliminado correctamente.');
end;
'5':
begin
quick_sort (ppointer (palabras), 0, length - 1, Comparable(@compare_palabra));
writeln (stdout, 'Registros ordenados correctamente.');
end;
'6':
begin
counter := 0;
array_foreach (ppointer (palabras), length, @counter, ForEachFunction (@print_palabra));
writeln (stdout, 'Total de registros: ', counter, '.');
end;
end;
if (main_option<'7') then
begin
write (stdout, #10#13'Presiona una tecla para continuar . . . ');
readkey;
end;
until main_option = '7';
assign (file_stream, path);
rewrite (file_stream);
array_foreach (ppointer (palabras), length, @file_stream, ForEachFunction (@print_on_file));
close (file_stream);
end.