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Ingy döt Net 2026-02-01 16:33:20 -08:00
parent 5150844a7d
commit 4bb20c9b71
7735 changed files with 38060 additions and 199180 deletions
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18
Task/Word-wrap/Ada/word-wrap-1.ada
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@ -1,18 +0,0 @@
generic
with procedure Put_Line(Line: String);
package Word_Wrap is
type Basic(Length_Of_Output_Line: Positive) is tagged private;
procedure Push_Word(State: in out Basic; Word: String);
procedure New_Paragraph(State: in out Basic);
procedure Finish(State: in out Basic);
private
type Basic(Length_Of_Output_Line: Positive) is tagged record
Line: String(1 .. Length_Of_Output_Line);
Size: Natural := 0; -- Line(1 .. Size) is relevant
Top_Of_Paragraph: Boolean := True;
end record;
end Word_Wrap;

36
Task/Word-wrap/Ada/word-wrap-2.ada
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package body Word_Wrap is
procedure Push_Word(State: in out Basic; Word: String) is
begin
if Word'Length + State.Size >= State.Length_Of_Output_Line then
Put_Line(State.Line(1 .. State.Size));
State.Line(1 .. Word'Length) := Word; -- may raise CE if Word too long
State.Size := Word'Length;
elsif State.Size > 0 then
State.Line(State.Size+1 .. State.Size+1+Word'Length) := ' ' & Word;
State.Size := State.Size + 1 + Word'Length;
else
State.Line(1 .. Word'Length) := Word;
State.Size := Word'Length;
end if;
State.Top_Of_Paragraph := False;
end Push_Word;
procedure New_Paragraph(State: in out Basic) is
begin
Finish(State);
if not State.Top_Of_Paragraph then
Put_Line("");
State.Top_Of_Paragraph := True;
end if;
end New_Paragraph;
procedure Finish(State: in out Basic) is
begin
if State.Size > 0 then
Put_Line(State.Line(1 .. State.Size));
State.Size := 0;
end if;
end Finish;
end Word_Wrap;

62
Task/Word-wrap/Ada/word-wrap-3.ada
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with Ada.Text_IO, Word_Wrap, Ada.Strings.Unbounded, Ada.Command_Line;
procedure Wrap is
use Ada.Strings.Unbounded;
Line: Unbounded_String;
Word: Unbounded_String;
function "+"(S: String) return Unbounded_String renames To_Unbounded_String;
function "-"(U: Unbounded_String) return String renames To_String;
package IO renames Ada.Text_IO;
procedure Split(S: Unbounded_String; First, Rest: out Unbounded_String) is
function Skip_Leading_Spaces(S: String) return String is
begin
if S="" then return "";
elsif S(S'First) = ' ' then return S(S'First+1 .. S'Last);
else return S;
end if;
end Skip_Leading_Spaces;
Str: String := Skip_Leading_Spaces(-S);
I: Positive := Str'First;
J: Natural;
begin
-- read nonspaces for First output param
J := I-1;
while J < Str'Last and then Str(J+1) /= ' ' loop
J := J + 1;
end loop;
First := + Str(I .. J);
-- write output param Rest
Rest := + Skip_Leading_Spaces(Str(J+1 .. Str'Last));
end Split;
procedure Print(S: String) is
begin
IO.Put_Line(S);
end Print;
package WW is new Word_Wrap(Print);
Wrapper: WW.Basic(Integer'Value(Ada.Command_Line.Argument(1)));
begin
while not IO.End_Of_File loop
Line := +IO.Get_Line;
if Line = +"" then
Wrapper.New_Paragraph;
Line := +IO.Get_Line;
end if;
while Line /= +"" loop
Split(Line, First => Word, Rest => Line);
Wrapper.Push_Word(-Word);
end loop;
end loop;
Wrapper.Finish;
end Wrap;