I have a string stored in a file that is read into a string. I wish to replace variables defined in *nix shell format with the corresponding environment values.
For example, an environment variable of $DEPLOY=/home/user will turn "deploypath=$DEPLOY/dir1" into "deploypath=/home/user/dir1"
Is there a simple library to do this?
i.e.
#include "supersimplelib.h"
char *newstr = expandvars(oldstr);
(or similar)
I understand I could use a regular expression lib and then call getenv() but I was wondering if there was another simpler way?
It will only be compiled under Linux.