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-rw-r--r--Documentation/technical/api-setup.txt19
1 files changed, 18 insertions, 1 deletions
diff --git a/Documentation/technical/api-setup.txt b/Documentation/technical/api-setup.txt
index 4f63a04..90d1aff 100644
--- a/Documentation/technical/api-setup.txt
+++ b/Documentation/technical/api-setup.txt
@@ -8,6 +8,23 @@ Talk about
* is_inside_git_dir()
* is_inside_work_tree()
* setup_work_tree()
-* get_pathspec()
(Dscho)
+
+Pathspec
+--------
+
+See glossary-context.txt for the syntax of pathspec. In memory, a
+pathspec set is represented by "struct pathspec" and is prepared by
+parse_pathspec(). This function takes several arguments:
+
+- magic_mask specifies what features that are NOT supported by the
+ following code. If a user attempts to use such a feature,
+ parse_pathspec() can reject it early.
+
+- flags specifies other things that the caller wants parse_pathspec to
+ perform.
+
+- prefix and args come from cmd_* functions
+
+get_pathspec() is obsolete and should never be used in new code.