lovasko / ft

:mag: Find tabs in text files

Find Tabs

Introduction

Utility program to find and report the location of all tab characters in a file.

Example

$ ft /usr/include/errno.h
/usr/include/errno.h: 19,3
/usr/include/errno.h: 19,32
/usr/include/errno.h: 22,8
/usr/include/errno.h: 26,8
/usr/include/errno.h: 27,18
/usr/include/errno.h: 36,7
/usr/include/errno.h: 38,7
/usr/include/errno.h: 45,8
/usr/include/errno.h: 69,28
$ echo $?
2
$ ft /etc/passwd
$ echo $?
0
$ ft /doesnotexist
open failed: No such file or directory
$ echo $?
1

Exit code

The process can exit with three different exit codes:

• 0: successful execution and no tabs found
• 1: unsuccessful execution
• 2: successful execution but at least one tab was found

Resource usage

The program uses a single thread, whilst only opening a single file at a time. All files are streamed from the disk, maximum 512 bytes at a time. This means the program introduces no limits to the length or number of the files processed.

License

The program is licensed under the terms of the 2-clause BSD license. In case you require a different license, please contact the author.

Author

Daniel Lovasko [e-mail]