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Convenience function to replace every occurance of a string in a file with a replacement string, outputs to another file.
Compile with ````make```` and run with ````./example````.
definition in replace.h:
````
int replaceinfile(char *originalfile, char *destinationfile, char *placeholder, char *replacement);
// 0 = failure, 1 = success
````
````replaceinfile("input.txt", "output.txt", "%PLACEHOLDER%", "replacement string");````
input.txt
````
Normal text file
%PLACEHOLDER%
%PLACEHOLDER%
%PLACEHOLDER%
With lines and whatever, %PLACEHOLDER%
123%PLACEHOLDER%123
ok %PLACEHOLDER% ok
````
output.txt
````
Normal text file
replacement string
replacement string
replacement string
With lines and whatever, replacement string
123replacement string123
ok replacement string ok
````
Also included a function to replace every occurance of a placeholder with a string in memory.
````
char *replaced = replaceinmemory("this string this string is a test string", "string", "word");
if (!replaced)
puts("failed replacing word");
else
puts(replaced);
free(replaced); /* you must free the returned memory pointer */
````
output
````
this word this word is a test word
````
See main.c for a usage examples
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