You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: m_proj.m
    path of file: ./repos/matlab_owc/lib/m_map1.4
    
    the code of the file until where you have to start completion: function m_proj(proj,varargin)
% M_PROJ  Initializes map projections info, putting the result into a structure
%
%         M_PROJ('set') tells you the current state
%         M_PROJ('get') gives you a list o
    
function match=m_match(arg,varargin);
% M_MATCH Tries to match input string with possible options

% Rich Pawlowicz (rich@ocgy.ubc.ca) 2/Apr/1997

match=strmatch(lower(arg),cellstr(lower(char(varargin))));

if length(match)>1,
  error(['Projection ''' arg ''' not a unique specification']);
elseif isempty(match),
  error(['Projection ''' arg ''' not recognized']);
end