Assigning Letter Values

[Guest]

How would I automate this code in a for loop preferably?

code:

letter (1) := 'a' letter (2) := 'b' letter (3) := 'c' letter (4) := 'd' letter (5) := 'e' letter (6) := 'f' letter (7) := 'g' letter (8) := 'h' letter (9) := 'i' letter (10) := 'j' letter (11) := 'k' letter (12) := 'l' letter (13) := 'm' letter (14) := 'n' letter (15) := 'o' letter (16) := 'p' letter (17) := 'q' letter (18) := 'r' letter (19) := 's' letter (20) := 't' letter (21) := 'u' letter (22) := 'v' letter (23) := 'w' letter (24) := 'x' letter (25) := 'y' letter (26) := 'z'

[TokenHerbz]

You should really learn about "ord" and "chr", there amazing

code:

var letter: array 1 .. 26 of string for i: 1 .. upper (letter)     letter(i) := chr(64+i)     put letter(i) .. end for

[pj_ladd12]

why did you 64+i? why 64?

[TokenHerbz]

to get the capital alphabets, go ahead and take out "64" and see what happends.

[Cervantes]

"A" is given the ASCII value 65. "B" is 66, and so on. So since we're starting with an index of 1, we need to add 64 to our index to get us to the range of the capital letters.

To get lower case letters like the author wanted, add a higher value. "a" is ASCII value 97.

[Clayton]

another way to do it (not as good, but works fine) is to have a string variable with all of the letters of the alphabet (lower and upper case) and simply having a for loop giving the value of a letter to an element in your array, for example:

Turing:

var alphabet : string := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" var my_letters : array 1 .. length(alphabet) of string for x: 1..upper(my_letters)     my_letters(x):=alphabet(x) end for

[Cervantes]

Since a string is basically an array of characters, you've got two arrays of characters there. Not so efficient. You could probably work with your string ("abcd...XYZ") just as easily as you work with the array that was originally posted.

[Wolf_Destiny]

Here you go:

code:

var letter : array 1..26 of string (1) for something: 'a'..'z' letter (ord (something)-ord ('a') + 1) := something end for

Four lines of quick for loop goodness.

To make capitals instead, all you have to do it change 'a' to 'A' and 'z' to 'Z'

It also works with numbers... or any characters really

Hope that helps

[TokenHerbz]

my way is best, as it is far easier to get any characters needed, and just as easy to change them.

[Cervantes]

They're basically the exact same thing. Let's not squabble over that. The question has been answered.

No more flogging a dead horse.