Problem 407. Back to basics 17 - white space

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Solution 481629

Submitted on 2 Aug 2014

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Leading solution size is 8.

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3 Comments

3 Comments

Harish Maradana on 2 Aug 2014

strtrim not working pls help me

Informaton on 8 Nov 2017

Three years late here, but strtrim removes both leading and trailing white spaces. The test here is for the trailing scenario only.

David Verrelli on 25 Dec 2017

Three and a bit years late too, but there may be a bigger problem with strtrim here, which is that apparently strtrim does not remove "null characters" (whether leading or trailing). This wasn't specifically required by the problem statement, but judging by test 3 it is needed here, and thus it seems that strtrim is especially unsuitable for test 3 (cf. Solution 1393480).

Test Suite

Test	Status	Code Input and Output
1	Fail	%% x = 'MATLAB '; y_correct = 'MATLAB'; assert(isequal(white_space_removal(x),y_correct)) Error: Undefined function or variable 'cx'.
2	Fail	%% x{1,1} = 'MATLAB '; x{1,2} = 'SIMULINK '; x{2,1} = 'Toolboxes '; x{2,2} = 'MathWorks '; y{1,1} = 'MATLAB'; y{1,2} = 'SIMULINK'; y{2,1} = 'Toolboxes'; y{2,2} = 'MathWorks'; assert(isequal(white_space_removal(x),y)) Error: Undefined function or variable 'cx'.
3	Fail	%% NL = char(0); TAB = char(9); x = [NL 32 TAB NL 'AB' 32 NL 'CD' NL 32 TAB NL 32]; y = [NL 32 TAB NL 'AB' 32 NL 'CD']; assert(isequal(white_space_removal(x),y)) Error: Undefined function or variable 'cx'.

Test

Status

Code Input and Output

Fail

%% x = 'MATLAB '; y_correct = 'MATLAB'; assert(isequal(white_space_removal(x),y_correct))

Error: Undefined function or variable 'cx'.

Fail

%% x{1,1} = 'MATLAB '; x{1,2} = 'SIMULINK '; x{2,1} = 'Toolboxes '; x{2,2} = 'MathWorks '; y{1,1} = 'MATLAB'; y{1,2} = 'SIMULINK'; y{2,1} = 'Toolboxes'; y{2,2} = 'MathWorks'; assert(isequal(white_space_removal(x),y))

Error: Undefined function or variable 'cx'.

Fail

%% NL = char(0); TAB = char(9); x = [NL 32 TAB NL 'AB' 32 NL 'CD' NL 32 TAB NL 32]; y = [NL 32 TAB NL 'AB' 32 NL 'CD']; assert(isequal(white_space_removal(x),y))

Error: Undefined function or variable 'cx'.

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Problem 407. Back to basics 17 - white space

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Problem 407. Back to basics 17 - white space

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