Dark Horse Programmer---tool class---OC custom function---Calculate the total number of rows for all files under the current path

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Calculates the total number of rows for all files under the current path

/*

calculates the total number of rows for all files under the current path

involving nsarray,nsstring,nsfilemanager

*/

calculates the number of rows for all files under the current full path (file \ folder)

receive parameter path: Full path to file ( file, folder )

Nsuinteger codelinescount (nsstring *path)

{

//1. get the File Manager Singleton mode: During the whole program, the object of theNsfilemanager class is the only one

nsfilemanager *fmg = [nsfilemanager defaultmanager];

//2. determine if path is a folder or a file path

BOOL isdir = NO; // mark is a folder

// path exists (valid)

BOOL isexist = [FMG fileexistsatpath:p ath isdirectory:&isdir];

//3. returns the 0 Exit Function directly if the path does not exist

if (!isexist)

{

NSLog(@ " file path is invalid ");

return 0;

}

// path exists

if (isdir)

{

// is a folder

//NSLog (@ " is a folder ");

// Returns a list of all (paths)--- files, folder paths ( arrays ) in the current path (the folder) directory

// array element not full path

nsarray *filepathslist = [FMG contentsofdirectoryatpath:p ath error:nil];

//NSLog (@ "%@", filepathslist);

Nsuinteger count = 0; // number of rows

// iterate through all paths in the array (file name \ folder name)

for (nsstring *filepath in filepathslist)

{

// Stitching full path of the current path folder (sub -Files \ Subfolders ) of the full path

nsstring *fullpath = [nsstring stringwithformat:@ "%@/%@", Path, FilePath];

//NSLog (@ "%@", FullPath);

/*

recursion here

the call itself returns the number of rows per final child file

Codelinescount (FullPath);

*/

// Add the total number of rows per sub-path to each final subpath file

Count + = codelinescount(fullPath);

}

return count;

}

Else

{ // is a file

//NSLog (@ " is a file ");

//1. loads the contents of a file into a string object

nsstring *content = [nsstring stringwithcontentsoffile:p ath encoding: Nsutf8stringencoding error:nil];

//2. The contents of the file (string content) are sliced with ' \ n ' each line , and the contents of the Shard are put back into the array .

nsarray *array = [content componentsseparatedbystring:@ "\ n"];

// Each array element is a nsstring object, which is the contents of a row in the file

//int i = 0;

//For (NSString *str in array)

//        {

//i++;

//NSLog (@ "%d---%@", I, str);

//        }

return array.     Count; // array element number is the number of rows

}

}

Dark Horse Programmer---tool class---OC custom function---Calculate the total number of rows for all files under the current path