patch_make: Create and apply patches to a text string
Description
Patches are constructed via patch_make() and applied using patch_apply().
Usage
patch_make(x, y)
patch_apply(x, patch)
Arguments
x
The source string
y
The destination string
patch
A string representation of the patch(es).
Value
patch_make() returns a string representation of the patch(es).
patch_apply() returns the patched version of the string x,
the matches attribute contains logical values indicating which patches
were successfully applied.