MATLAB: Are cells not highlighted correctly when the text in the MATLAB Editor contains a syntax error

MATLABmlint

Cells are not highlighted properly in the MATLAB Editor in cell mode if the code in the editor contains a syntax error.

Best Answer

If the text contains syntax errors, the editor in MATLAB 7.6 (R2008a) is not accurately able to determine cell locations. This behavior can manifest in two ways.

1. If a file containing a syntax error is opened in the editor, no cell locations will be displayed until the syntax error is fixed.

2. If a syntax error is introduced into a file with existing cells, the existing cell locations will track insertions and deletions in the document, but new cells will not be recognized until the syntax error is fixed. Furthermore, it is possible that the document changes will invalidate the old cell locations which are being displayed.

Use the M-Lint utility to find and fix syntax errors to restore correct cell behavior.

Related Solutions

MATLAB: Is it possible to use the UNIQUE function with cell arrays containing empty cells in MATLAB 7.9 (R2009b)

The ability to process empty cells directly with the UNIQUE function is not available in MATLAB 7.9 (R2009b).

As a workaround, you can identify which cells are not empty with the CELLFUN function:

c = {'hello', 'world', [], 'hello', 'MATLAB'}
~cellfun(@isempty, c)

Then use this logical array to index into the original cell array in order to call UNIQUE on only the elements of the cell array which are not empty:

unique(c(~cellfun(@isempty, c)))

MATLAB: How to get an M-lint report without opening the files in the Editor

There are several ways to get the M-lint report on the files in your directory:

1. Run the M-Lint Code Check Directory Report. For step-by-step instructions on how to run the M-lint Code Check Directory Report, please refer to the documentation by executing the following in the MATLAB command prompt:

web([docroot '/techdoc/matlab_env/f9-11863.html'])

2. Use MLINT function. For example, using MLINT with the following syntax:

inform=mlint('filename','-struct')

returns the M-Lint information in a structure array whose length is the number of suspicious constructs found. If you specify multiple file names as input, or if you specify a cell array as input, 'inform' contains a cell array of structures.

For more information on MLINT and the possible syntaxes you can use with it, please refer to the documentation by executing the following in the MATLAB command prompt:

doc mlint

3 Use MLINTPRT function which will run MLINT for file or directory, reporting results in browser. For more information on MLINTPRT, please refer to the documentation by executing the following in the MATLAB command prompt:

doc mlintrpt

Best Answer

Related Solutions

MATLAB: Is it possible to use the UNIQUE function with cell arrays containing empty cells in MATLAB 7.9 (R2009b)

MATLAB: How to get an M-lint report without opening the files in the Editor

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