This will turn out to be useful in a later patch.
xdl_recmatch is exported in xdiff/xutils.h, to be used by various
xdiff/*.c files, but not outside of xdiff/. This one makes it available
to the outside, too.
While at it, add documentation.
Signed-off-by: Stefan Beller <sbeller@xxxxxxxxxx>
---
xdiff-interface.c | 11 +++++++++++
xdiff-interface.h | 16 ++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/xdiff-interface.c b/xdiff-interface.c
index 018e033089..9b35af2455 100644
--- a/xdiff-interface.c
+++ b/xdiff-interface.c
@@ -5,6 +5,7 @@
#include "xdiff/xdiffi.h"
#include "xdiff/xemit.h"
#include "xdiff/xmacros.h"
+#include "xdiff/xutils.h"
struct xdiff_emit_state {
xdiff_emit_consume_fn consume;
@@ -296,6 +297,16 @@ void xdiff_clear_find_func(xdemitconf_t *xecfg)
}
}
+unsigned long xdiff_hash_string(const char *s, size_t len, long flags)
+{
+ return xdl_hash_record(&s, s + len, flags);
+}
+
+int xdiff_compare_lines(const char *a, long len_a, const char *b, long len_b, long flags)
+{
+ return xdl_recmatch(a, len_a, b, len_b, flags);
+}
+
int git_xmerge_style = -1;
int git_xmerge_config(const char *var, const char *value, void *cb)
diff --git a/xdiff-interface.h b/xdiff-interface.h
index 6f6ba9095d..6f5abaf8d3 100644
--- a/xdiff-interface.h
+++ b/xdiff-interface.h
@@ -29,4 +29,20 @@ extern void xdiff_clear_find_func(xdemitconf_t *xecfg);
extern int git_xmerge_config(const char *var, const char *value, void *cb);
extern int git_xmerge_style;
+/*
+ * Compare the strings l1 with l2 which are of size s1 and s2 respectively.
+ * Returns 1 if the strings are deemed equal, 0 otherwise.
+ * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces
+ * are treated for the comparision.
+ */
+extern int xdiff_compare_lines(const char *a, long len_a,
+ const char *b, long len_b, long flags);
+
+/*
+ * Returns a hash of the string s of length len.
+ * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces
+ * are treated for the hash.
+ */
+extern unsigned long xdiff_hash_string(const char *s, size_t len, long flags);
+
#endif
--
2.15.0.rc2.6.g953226eb5f
