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Some bugs were corrected in the utf8_braille Unit.

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git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@1948 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
anavaleije
2011-09-15 01:20:50 +00:00
parent 24b421eeff
commit 3b020a82c2
1 changed files with 120 additions and 115 deletions
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63
applications/fpbrowser/utf8_braille.pas
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@ -1,24 +1,31 @@
unit utf8_braille;
(* The function to_braille from this unit translates a string from UTF8 chars to Braille chars.
The dictionaries were taken from http://www.ibc.gov.br/?catid=110&blogid=1&itemid=479 and from http://www.braillevirtual.fe.usp.br/pt/Portugues/braille.html
*)
{$mode delphi}
Unit utf8_braille;
interface
Function Braille (Line: string): string;
Type
dictionary = array[1..32] of string;
dictionary_pointer = ^dictionary;
Const
number_signal = chr($e2) + chr($a0) + chr($bc);
caps_signal = chr($e2) + chr($a0) + chr($a8);
d1:dictionary = ({!} chr($96), {"} chr($a6) , {#} 'TODO', {(*$*)} chr($b0) , {%} chr($b8)+chr($e2)+chr($a0)+chr($b4), {&} chr($af), {'} chr($84), {(} chr($a3)+chr($e2)+chr($a0)+chr($84), {)} chr($a0)+chr($e2)+chr($a0)+chr($9c), {*} chr($94), {+} chr($96), {,} chr($82), {-} chr($a4), {.} chr($84), {/} chr($90)+chr($e2)+chr($a0)+chr($b2), {0} chr($9a), {1} chr($81), {2} chr($83), {3} chr($89), {4} chr($99), {5} chr($91), {6} chr($8b), {7} chr($9b), {8} chr($93), {9} chr($8a), {:} chr($92), {;} chr($86), {<} chr($aa), {=} chr($b6), {>} chr($95), {?} chr($a2), {@} 'TODO');
d2:dictionary = ({a} chr($81), {b} chr($83), {c} chr($89), {d} chr($99), {e} chr($91), {f} chr($8b), {g} chr($9b), {h} chr($93), {i} chr($8a), {j} chr($9a), {k} chr($85), {l} chr($87), {m} chr($8d), {n} chr($9d), {o} chr($95), {p} chr($8f), {q} chr($9f), {r} chr($97), {s} chr($8e), {t} chr($9e), {u} chr($a5), {v} chr($a7), {w} chr($ba), {x} chr($ad), {y} chr($bd), {z} chr($b5),'','','','','','');
d3:dictionary = ({a + grave} chr($ab), {a + acute} chr($b7), {a + circumflex} chr($a1), {a + tilde} chr($9c), {a + diaeresis} 'TODO', {a + ring above} 'TODO', {ae} 'TODO', {c + cedilla} chr($af), {e + grave} chr($ae), {e + acute} chr($bf), {e + circumflex} chr($a3), {e + diaeresis} 'TODO', {i + grave} chr($a9), {i + acute} chr($8c), {i + circumflex} 'TODO', {i + diaeresis} chr($bb), {eth} 'TODO', {n + tilde} 'TODO', {o + grave} chr($ba), {o + acute} chr($ac), {o + circumflex} chr($b9), {o + tilde} chr($aa), {o + diaeresis} 'TODO', {division sign} 'TODO', {o + stroke} 'TODO', {u + grave} chr($b1), {u + acute} chr($be), {u + circumflex} 'TODO', {u + diaeresis} chr($b3), {y + acute} 'TODO', {thorn} 'TODO', {y + diaeresis} 'TODO');
uses
Classes, SysUtils;
implementation
Function Braille (Word: string): string;
Function Braille (Line: string): string;
Var
count, count_aux, n, n_aux, decr: integer;
@ -34,24 +41,35 @@ Var
decr := 0;
count := 1;
n_aux := 0;
while count <= length(Word) do
if Line = '' then
Braille := '';
while count <= length(Line) do
begin
if Word[count] = ' ' then {reproduce the empty space and go to next iteration}
if Line[count] = ' ' then {reproduce the empty space and go to next iteration}
begin
Braille_string := Braille_string + chr($e2)+chr($a0)+chr($80);
count := count + 1;
continue
end;
if accented then {if the last iteration found n = 195, it means we have an accented character. Print it and go to next iteration}
begin
n := ord(Word[count]);
dict_p^ := d3;
decr := 159;
n := ord(Line[count]);
if n < 160 then {if it's a capital letter, put the caps signal and change to minuscule}
begin
Braille_string := Braille_string + caps_signal;
n := n + 32
end;
Braille_string := Braille_string + chr($e2) + chr($a0) + (dict_p^)[n-decr];
accented := False;
count := count + 1;
continue
end;
n := ord(Word[count]);
n := ord(Line[count]);
if ((n >= 97) and (n <= 122)) then {if the char is a letter, choose d2}
begin
@ -59,20 +77,8 @@ Var
decr := 96
end
else
if n = 195 then {if the char is a accented letter, choose d3 and the next iteration will only print the next char}
if n = 195 then {if the char is an accented letter, flag it and go to next iteration}
begin
dict_p^ := d3;
decr := 159;
accented := True;
count := count + 1;
continue
end
else
if n = 195 then {if the char is a accented letter, choose d3 and the next iteration will only print the next char}
begin
dict_p^ := d3;
decr := 159;
accented := True;
count := count + 1;
continue
@ -85,19 +91,19 @@ Var
decr := 96 - 32;
string_aux := chr($e2) + chr($a0) + (dict_p^)[n-decr];
count_aux := count + 1;
if count_aux > length(Word) then
if count_aux > length(Line) then
begin
Braille_string := Braille_string + caps_signal + string_aux;
break
end;
n_aux := ord(Word[count_aux]);
n_aux := ord(Line[count_aux]);
while ((n_aux >= 65) and (n_aux <= 90)) do
begin
string_aux := string_aux + chr($e2) + chr($a0) + (dict_p^)[n_aux-decr];
count_aux := count_aux + 1;
if count_aux > length(Word) then
if count_aux > length(Line) then
break;
n_aux := ord(Word[count_aux]);
n_aux := ord(Line[count_aux]);
end;
if length(string_aux) > 3 then
Braille_string := Braille_string + caps_signal + caps_signal + string_aux
@ -126,8 +132,7 @@ Var
count := count + 1;
end;
Braille := Braille_string + '\n';
Braille := Braille_string;
end;
end.
End.