diff options
Diffstat (limited to 'xdiff/xmerge.c')
-rw-r--r-- | xdiff/xmerge.c | 105 |
1 files changed, 69 insertions, 36 deletions
diff --git a/xdiff/xmerge.c b/xdiff/xmerge.c index 1cb65a9516..9e13b25abc 100644 --- a/xdiff/xmerge.c +++ b/xdiff/xmerge.c @@ -28,6 +28,7 @@ typedef struct s_xdmerge { * 0 = conflict, * 1 = no conflict, take first, * 2 = no conflict, take second. + * 3 = no conflict, take both. */ int mode; /* @@ -144,13 +145,16 @@ static int xdl_orig_copy(xdfenv_t *xe, int i, int count, int add_nl, char *dest) static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1, xdfenv_t *xe2, const char *name2, + const char *name3, int size, int i, int style, - xdmerge_t *m, char *dest) + xdmerge_t *m, char *dest, int marker_size) { - const int marker_size = 7; int marker1_size = (name1 ? strlen(name1) + 1 : 0); int marker2_size = (name2 ? strlen(name2) + 1 : 0); - int j; + int marker3_size = (name3 ? strlen(name3) + 1 : 0); + + if (marker_size <= 0) + marker_size = DEFAULT_CONFLICT_MARKER_SIZE; /* Before conflicting part */ size += xdl_recs_copy(xe1, i, m->i1 - i, 0, @@ -159,8 +163,8 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1, if (!dest) { size += marker_size + 1 + marker1_size; } else { - for (j = 0; j < marker_size; j++) - dest[size++] = '<'; + memset(dest + size, '<', marker_size); + size += marker_size; if (marker1_size) { dest[size] = ' '; memcpy(dest + size + 1, name1, marker1_size - 1); @@ -176,10 +180,15 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1, if (style == XDL_MERGE_DIFF3) { /* Shared preimage */ if (!dest) { - size += marker_size + 1; + size += marker_size + 1 + marker3_size; } else { - for (j = 0; j < marker_size; j++) - dest[size++] = '|'; + memset(dest + size, '|', marker_size); + size += marker_size; + if (marker3_size) { + dest[size] = ' '; + memcpy(dest + size + 1, name3, marker3_size - 1); + size += marker3_size; + } dest[size++] = '\n'; } size += xdl_orig_copy(xe1, m->i0, m->chg0, 1, @@ -189,8 +198,8 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1, if (!dest) { size += marker_size + 1; } else { - for (j = 0; j < marker_size; j++) - dest[size++] = '='; + memset(dest + size, '=', marker_size); + size += marker_size; dest[size++] = '\n'; } @@ -200,8 +209,8 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1, if (!dest) { size += marker_size + 1 + marker2_size; } else { - for (j = 0; j < marker_size; j++) - dest[size++] = '>'; + memset(dest + size, '>', marker_size); + size += marker_size; if (marker2_size) { dest[size] = ' '; memcpy(dest + size + 1, name2, marker2_size - 1); @@ -214,22 +223,35 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1, static int xdl_fill_merge_buffer(xdfenv_t *xe1, const char *name1, xdfenv_t *xe2, const char *name2, - xdmerge_t *m, char *dest, int style) + const char *ancestor_name, + int favor, + xdmerge_t *m, char *dest, int style, + int marker_size) { int size, i; for (size = i = 0; m; m = m->next) { + if (favor && !m->mode) + m->mode = favor; + if (m->mode == 0) size = fill_conflict_hunk(xe1, name1, xe2, name2, - size, i, style, m, dest); - else if (m->mode == 1) - size += xdl_recs_copy(xe1, i, m->i1 + m->chg1 - i, 0, + ancestor_name, + size, i, style, m, dest, + marker_size); + else if (m->mode & 3) { + /* Before conflicting part */ + size += xdl_recs_copy(xe1, i, m->i1 - i, 0, dest ? dest + size : NULL); - else if (m->mode == 2) - size += xdl_recs_copy(xe2, m->i2 - m->i1 + i, - m->i1 + m->chg2 - i, 0, - dest ? dest + size : NULL); - else + /* Postimage from side #1 */ + if (m->mode & 1) + size += xdl_recs_copy(xe1, m->i1, m->chg1, 1, + dest ? dest + size : NULL); + /* Postimage from side #2 */ + if (m->mode & 2) + size += xdl_recs_copy(xe2, m->i2, m->chg2, 1, + dest ? dest + size : NULL); + } else continue; i = m->i1 + m->chg1; } @@ -314,7 +336,7 @@ static int xdl_refine_conflicts(xdfenv_t *xe1, xdfenv_t *xe2, xdmerge_t *m, static int line_contains_alnum(const char *ptr, long size) { while (size--) - if (isalnum(*(ptr++))) + if (isalnum((unsigned char)*(ptr++))) return 1; return 0; } @@ -384,13 +406,19 @@ static int xdl_simplify_non_conflicts(xdfenv_t *xe1, xdmerge_t *m, * * returns < 0 on error, == 0 for no conflicts, else number of conflicts */ -static int xdl_do_merge(xdfenv_t *xe1, xdchange_t *xscr1, const char *name1, - xdfenv_t *xe2, xdchange_t *xscr2, const char *name2, - int flags, xpparam_t const *xpp, mmbuffer_t *result) { +static int xdl_do_merge(xdfenv_t *xe1, xdchange_t *xscr1, + xdfenv_t *xe2, xdchange_t *xscr2, + xmparam_t const *xmp, mmbuffer_t *result) +{ xdmerge_t *changes, *c; + xpparam_t const *xpp = &xmp->xpp; + const char *const ancestor_name = xmp->ancestor; + const char *const name1 = xmp->file1; + const char *const name2 = xmp->file2; int i0, i1, i2, chg0, chg1, chg2; - int level = flags & XDL_MERGE_LEVEL_MASK; - int style = flags & XDL_MERGE_STYLE_MASK; + int level = xmp->level; + int style = xmp->style; + int favor = xmp->favor; if (style == XDL_MERGE_DIFF3) { /* @@ -522,26 +550,31 @@ static int xdl_do_merge(xdfenv_t *xe1, xdchange_t *xscr1, const char *name1, } /* output */ if (result) { + int marker_size = xmp->marker_size; int size = xdl_fill_merge_buffer(xe1, name1, xe2, name2, - changes, NULL, style); + ancestor_name, + favor, changes, NULL, style, + marker_size); result->ptr = xdl_malloc(size); if (!result->ptr) { xdl_cleanup_merge(changes); return -1; } result->size = size; - xdl_fill_merge_buffer(xe1, name1, xe2, name2, changes, - result->ptr, style); + xdl_fill_merge_buffer(xe1, name1, xe2, name2, + ancestor_name, favor, changes, + result->ptr, style, marker_size); } return xdl_cleanup_merge(changes); } -int xdl_merge(mmfile_t *orig, mmfile_t *mf1, const char *name1, - mmfile_t *mf2, const char *name2, - xpparam_t const *xpp, int flags, mmbuffer_t *result) { +int xdl_merge(mmfile_t *orig, mmfile_t *mf1, mmfile_t *mf2, + xmparam_t const *xmp, mmbuffer_t *result) +{ xdchange_t *xscr1, *xscr2; xdfenv_t xe1, xe2; int status; + xpparam_t const *xpp = &xmp->xpp; result->ptr = NULL; result->size = 0; @@ -572,9 +605,9 @@ int xdl_merge(mmfile_t *orig, mmfile_t *mf1, const char *name1, memcpy(result->ptr, mf1->ptr, mf1->size); result->size = mf1->size; } else { - status = xdl_do_merge(&xe1, xscr1, name1, - &xe2, xscr2, name2, - flags, xpp, result); + status = xdl_do_merge(&xe1, xscr1, + &xe2, xscr2, + xmp, result); } xdl_free_script(xscr1); xdl_free_script(xscr2); |