Merge https://salsa.debian.org/debian/libgit2 into proxmox/bullseye

[libgit2.git] / src / libgit2 / xdiff / xdiff.h

diff --git a/src/libgit2/xdiff/xdiff.h b/src/libgit2/xdiff/xdiff.h
new file mode 100644 (file)
index 0000000..fb47f63
--- /dev/null
+++ b/src/libgit2/xdiff/xdiff.h
@@ -0,0 +1,150 @@
+/*
+ *  LibXDiff by Davide Libenzi ( File Differential Library )
+ *  Copyright (C) 2003  Davide Libenzi
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, see
+ *  <http://www.gnu.org/licenses/>.
+ *
+ *  Davide Libenzi <davidel@xmailserver.org>
+ *
+ */
+
+#if !defined(XDIFF_H)
+#define XDIFF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* #ifdef __cplusplus */
+
+#include "git-xdiff.h"
+
+/* xpparm_t.flags */
+#define XDF_NEED_MINIMAL (1 << 0)
+
+#define XDF_IGNORE_WHITESPACE (1 << 1)
+#define XDF_IGNORE_WHITESPACE_CHANGE (1 << 2)
+#define XDF_IGNORE_WHITESPACE_AT_EOL (1 << 3)
+#define XDF_IGNORE_CR_AT_EOL (1 << 4)
+#define XDF_WHITESPACE_FLAGS (XDF_IGNORE_WHITESPACE | \
+                             XDF_IGNORE_WHITESPACE_CHANGE | \
+                             XDF_IGNORE_WHITESPACE_AT_EOL | \
+                             XDF_IGNORE_CR_AT_EOL)
+
+#define XDF_IGNORE_BLANK_LINES (1 << 7)
+
+#define XDF_PATIENCE_DIFF (1 << 14)
+#define XDF_HISTOGRAM_DIFF (1 << 15)
+#define XDF_DIFF_ALGORITHM_MASK (XDF_PATIENCE_DIFF | XDF_HISTOGRAM_DIFF)
+#define XDF_DIFF_ALG(x) ((x) & XDF_DIFF_ALGORITHM_MASK)
+
+#define XDF_INDENT_HEURISTIC (1 << 23)
+
+/* xdemitconf_t.flags */
+#define XDL_EMIT_FUNCNAMES (1 << 0)
+#define XDL_EMIT_NO_HUNK_HDR (1 << 1)
+#define XDL_EMIT_FUNCCONTEXT (1 << 2)
+
+/* merge simplification levels */
+#define XDL_MERGE_MINIMAL 0
+#define XDL_MERGE_EAGER 1
+#define XDL_MERGE_ZEALOUS 2
+#define XDL_MERGE_ZEALOUS_ALNUM 3
+
+/* merge favor modes */
+#define XDL_MERGE_FAVOR_OURS 1
+#define XDL_MERGE_FAVOR_THEIRS 2
+#define XDL_MERGE_FAVOR_UNION 3
+
+/* merge output styles */
+#define XDL_MERGE_DIFF3 1
+#define XDL_MERGE_ZEALOUS_DIFF3 2
+
+typedef struct s_mmfile {
+       char *ptr;
+       long size;
+} mmfile_t;
+
+typedef struct s_mmbuffer {
+       char *ptr;
+       long size;
+} mmbuffer_t;
+
+typedef struct s_xpparam {
+       unsigned long flags;
+
+       /* -I<regex> */
+       xdl_regex_t **ignore_regex;
+       size_t ignore_regex_nr;
+
+       /* See Documentation/diff-options.txt. */
+       char **anchors;
+       size_t anchors_nr;
+} xpparam_t;
+
+typedef struct s_xdemitcb {
+       void *priv;
+       int (*out_hunk)(void *,
+                       long old_begin, long old_nr,
+                       long new_begin, long new_nr,
+                       const char *func, long funclen);
+       int (*out_line)(void *, mmbuffer_t *, int);
+} xdemitcb_t;
+
+typedef long (*find_func_t)(const char *line, long line_len, char *buffer, long buffer_size, void *priv);
+
+typedef int (*xdl_emit_hunk_consume_func_t)(long start_a, long count_a,
+                                           long start_b, long count_b,
+                                           void *cb_data);
+
+typedef struct s_xdemitconf {
+       long ctxlen;
+       long interhunkctxlen;
+       unsigned long flags;
+       find_func_t find_func;
+       void *find_func_priv;
+       xdl_emit_hunk_consume_func_t hunk_func;
+} xdemitconf_t;
+
+typedef struct s_bdiffparam {
+       long bsize;
+} bdiffparam_t;
+
+
+void *xdl_mmfile_first(mmfile_t *mmf, long *size);
+long xdl_mmfile_size(mmfile_t *mmf);
+
+int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
+            xdemitconf_t const *xecfg, xdemitcb_t *ecb);
+
+typedef struct s_xmparam {
+       xpparam_t xpp;
+       int marker_size;
+       int level;
+       int favor;
+       int style;
+       const char *ancestor;   /* label for orig */
+       const char *file1;      /* label for mf1 */
+       const char *file2;      /* label for mf2 */
+} xmparam_t;
+
+#define DEFAULT_CONFLICT_MARKER_SIZE 7
+
+int xdl_merge(mmfile_t *orig, mmfile_t *mf1, mmfile_t *mf2,
+               xmparam_t const *xmp, mmbuffer_t *result);
+
+#ifdef __cplusplus
+}
+#endif /* #ifdef __cplusplus */
+
+#endif /* #if !defined(XDIFF_H) */