xdiff_string_diff
Make unified diff of two strings
&reftitle.description;
stringxdiff_string_diff
stringold_data
stringnew_data
intcontext3
boolminimalfalse
Makes an unified diff containing differences between old_data string and
new_data string and returns it. The resulting diff is human-readable.
An optional context parameter specifies how many lines of context should be
added around each change (with default value of 3). Setting minimal parameter
to true will result in outputting the shortest patch file possible (can take a long time).
&reftitle.parameters;
old_data
First string with data. It acts as "old" data.
new_data
Second string with data. It acts as "new" data.
context
Indicates how many lines of context you want to include in the diff
result. Default is 3.
minimal
Set this parameter to &true; if you want to minimalize the size of the
result (can take a long time).
&reftitle.returnvalues;
Returns string with resulting diff or &false; if an internal error happened.
&reftitle.examples;
xdiff_string_diff example
The following code makes unified diff of two articles.
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&reftitle.notes;
This function doesn't work well with binary strings. To make diff of binary
strings use xdiff_string_bdiff/xdiff_string_rabdiff.
&reftitle.seealso;
xdiff_string_patch