diff options
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 70 |
1 files changed, 20 insertions, 50 deletions
@@ -879,37 +879,21 @@ static int compute_ws_delta(const struct emitted_diff_symbol *a, return 1; } -static int cmp_in_block_with_wsd(const struct diff_options *o, - const struct moved_entry *cur, - const struct moved_entry *match, - struct moved_block *pmb, - int n) -{ - struct emitted_diff_symbol *l = &o->emitted_symbols->buf[n]; - int al = cur->es->len, bl = match->es->len, cl = l->len; +static int cmp_in_block_with_wsd(const struct moved_entry *cur, + const struct emitted_diff_symbol *l, + struct moved_block *pmb) +{ + int al = cur->es->len, bl = l->len; const char *a = cur->es->line, - *b = match->es->line, - *c = l->line; + *b = l->line; int a_off = cur->es->indent_off, a_width = cur->es->indent_width, - c_off = l->indent_off, - c_width = l->indent_width; + b_off = l->indent_off, + b_width = l->indent_width; int delta; - /* - * We need to check if 'cur' is equal to 'match'. As those - * are from the same (+/-) side, we do not need to adjust for - * indent changes. However these were found using fuzzy - * matching so we do have to check if they are equal. Here we - * just check the lengths. We delay calling memcmp() to check - * the contents until later as if the length comparison for a - * and c fails we can avoid the call all together. - */ - if (al != bl) - return 1; - /* If 'l' and 'cur' are both blank then they match. */ - if (a_width == INDENT_BLANKLINE && c_width == INDENT_BLANKLINE) + if (a_width == INDENT_BLANKLINE && b_width == INDENT_BLANKLINE) return 0; /* @@ -918,7 +902,7 @@ static int cmp_in_block_with_wsd(const struct diff_options *o, * match those of the current block and that the text of 'l' and 'cur' * after the indentation match. */ - delta = c_width - a_width; + delta = b_width - a_width; /* * If the previous lines of this block were all blank then set its @@ -927,9 +911,8 @@ static int cmp_in_block_with_wsd(const struct diff_options *o, if (pmb->wsd == INDENT_BLANKLINE) pmb->wsd = delta; - return !(delta == pmb->wsd && al - a_off == cl - c_off && - !memcmp(a, b, al) && ! - memcmp(a + a_off, c + c_off, al - a_off)); + return !(delta == pmb->wsd && al - a_off == bl - b_off && + !memcmp(a + a_off, b + b_off, al - a_off)); } static int moved_entry_cmp(const void *hashmap_cmp_fn_data, @@ -1030,36 +1013,23 @@ static void pmb_advance_or_null(struct diff_options *o, } static void pmb_advance_or_null_multi_match(struct diff_options *o, - struct moved_entry *match, - struct hashmap *hm, + struct emitted_diff_symbol *l, struct moved_block *pmb, - int pmb_nr, int n) + int pmb_nr) { int i; - char *got_match = xcalloc(1, pmb_nr); - - hashmap_for_each_entry_from(hm, match, ent) { - for (i = 0; i < pmb_nr; i++) { - struct moved_entry *prev = pmb[i].match; - struct moved_entry *cur = (prev && prev->next_line) ? - prev->next_line : NULL; - if (!cur) - continue; - if (!cmp_in_block_with_wsd(o, cur, match, &pmb[i], n)) - got_match[i] |= 1; - } - } for (i = 0; i < pmb_nr; i++) { - if (got_match[i]) { + struct moved_entry *prev = pmb[i].match; + struct moved_entry *cur = (prev && prev->next_line) ? + prev->next_line : NULL; + if (cur && !cmp_in_block_with_wsd(cur, l, &pmb[i])) { /* Advance to the next line */ - pmb[i].match = pmb[i].match->next_line; + pmb[i].match = cur; } else { moved_block_clear(&pmb[i]); } } - - free(got_match); } static int shrink_potential_moved_blocks(struct moved_block *pmb, @@ -1223,7 +1193,7 @@ static void mark_color_as_moved(struct diff_options *o, if (o->color_moved_ws_handling & COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE) - pmb_advance_or_null_multi_match(o, match, hm, pmb, pmb_nr, n); + pmb_advance_or_null_multi_match(o, l, pmb, pmb_nr); else pmb_advance_or_null(o, match, hm, pmb, pmb_nr); |