Doxygen Source Code Documentation
GetNextLine.m
Go to the documentation of this file.00001 function [err, snl, Nlines, strt, stp] = GetNextLine (s,n)
00002 %
00003 % [err, snl, Nlines, strt, stp] = GetNextLine (s,n)
00004 %
00005 %Purpose:
00006 % reads the nth line of a string
00007 % lines are separated by a new line character, of course
00008 %
00009 %Input Parameters:
00010 % s
00011 %
00012 %
00013 %Output Parameters:
00014 % err : 0 No Problem
00015 % : 1 Mucho Problems
00016 %
00017 % snl the nth string
00018 % if you exceed the number of lines in the string, an empty string is returned
00019 % Nlines is the total number of lines in s
00020 % strt, stp are such that snl = s(strt:stp)
00021 %Key Terms:
00022 %
00023 %More Info :
00024 % good for parins ls lists e.g:
00025 % [tm,v] = unix('ls -C1');
00026 % [err,sn] = GetNextLine(v,1)
00027 % [err,sn] = GetNextLine(v,4) etc
00028 %
00029 %
00030 % Author : Ziad Saad
00031 % Date : Mon Oct 11 13:15:13 CDT 1999
00032
00033
00034 %Define the function name for easy referencing
00035 FuncName = 'GetNextLine';
00036
00037 %Debug Flag
00038 DBG = 1;
00039
00040 %initailize return variables
00041 err = 1;
00042 strt = 0; stp = 0;
00043
00044 inl = find(setstr(s) == 10);
00045
00046 Nlines = length(inl);
00047 if (n <= Nlines),
00048 if (n == 1),
00049 strt = 1;
00050 else
00051 strt = inl(n-1)+1;
00052 end
00053 stp = inl(n) -1;
00054 snl=s(strt:stp);
00055 else
00056 snl = '';
00057 end
00058
00059 err = 0;
00060 return;
00061
