source: trunk/src/stra2num.m @ 19

Last change on this file since 19 was 19, checked in by gostiaux, 11 years ago

the private files have been moved down to the root folder

File size: 900 bytes
RevLine 
[8]1%'stra2num': transform letters (a, b, c) or numerical strings ('1','2'..) to the corresponding numbers
2%--------------------------------------------
3%  function numres=stra2num(str)
4%
5% OUTPUT:
6% numres: number (double)
7%
8% INPUT:
9% str: string corresponding to a number or a letter 'a' 'b',.., otherwise the output is empty
10%
11% see also num2stra, name_generator, name2display
12
13function numres=stra2num(str)
14numres=[]; %default
15if double(str) >= 48 & double(str) <= 57 % = test for number strings
16    numres=str2num(str);
17elseif double(str) >= 65 & double(str) <= 90 % test on ascii code for capital letters
18    numres=double(str)-64; %change capital letters to corresponding number in the alphabet
19elseif double(str) >= 97 & double(str) <= 122 % test on ascii code for small letters
20    numres=double(str)-96; %change small letters to corresponding number in the alphabet
21end
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