-rw-r--r-- | ui-ssdiff.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/ui-ssdiff.c b/ui-ssdiff.c index 408e620..2481585 100644 --- a/ui-ssdiff.c +++ b/ui-ssdiff.c @@ -1,51 +1,52 @@ #include "cgit.h" #include "html.h" #include "ui-shared.h" +#include "ui-diff.h" extern int use_ssdiff; static int current_old_line, current_new_line; struct deferred_lines { int line_no; char *line; struct deferred_lines *next; }; static struct deferred_lines *deferred_old, *deferred_old_last; static struct deferred_lines *deferred_new, *deferred_new_last; static char *longest_common_subsequence(char *A, char *B) { int i, j, ri; int m = strlen(A); int n = strlen(B); int L[m + 1][n + 1]; int tmp1, tmp2; int lcs_length; char *result; for (i = m; i >= 0; i--) { for (j = n; j >= 0; j--) { if (A[i] == '\0' || B[j] == '\0') { L[i][j] = 0; } else if (A[i] == B[j]) { L[i][j] = 1 + L[i + 1][j + 1]; } else { tmp1 = L[i + 1][j]; tmp2 = L[i][j + 1]; L[i][j] = (tmp1 > tmp2 ? tmp1 : tmp2); } } } lcs_length = L[0][0]; result = xmalloc(lcs_length + 2); memset(result, 0, sizeof(*result) * (lcs_length + 2)); ri = 0; i = 0; j = 0; while (i < m && j < n) { if (A[i] == B[j]) { result[ri] = A[i]; @@ -146,122 +147,135 @@ static void deferred_old_add(char *line, int line_no) static void deferred_new_add(char *line, int line_no) { struct deferred_lines *item = xmalloc(sizeof(struct deferred_lines)); item->line = xstrdup(line); item->line_no = line_no; item->next = NULL; if (deferred_new) { deferred_new_last->next = item; deferred_new_last = item; } else { deferred_new = deferred_new_last = item; } } static void print_part_with_lcs(char *class, char *line, char *lcs) { int line_len = strlen(line); int i, j; char c[2] = " "; int same = 1; j = 0; for (i = 0; i < line_len; i++) { c[0] = line[i]; if (same) { if (line[i] == lcs[j]) j += 1; else { same = 0; htmlf("<span class='%s'>", class); } } else if (line[i] == lcs[j]) { same = 1; htmlf("</span>"); j += 1; } html_txt(c); } } static void print_ssdiff_line(char *class, int old_line_no, char *old_line, int new_line_no, char *new_line, int individual_chars) { char *lcs = NULL; + if (old_line) old_line = replace_tabs(old_line + 1); if (new_line) new_line = replace_tabs(new_line + 1); if (individual_chars && old_line && new_line) lcs = longest_common_subsequence(old_line, new_line); - html("<tr>"); - if (old_line_no > 0) - htmlf("<td class='lineno'>%d</td><td class='%s'>", - old_line_no, class); - else if (old_line) + html("<tr>\n"); + if (old_line_no > 0) { + struct diff_filespec *old_file = cgit_get_current_old_file(); + char *lineno_str = fmt("n%d", old_line_no); + char *id_str = fmt("%s#%s", is_null_sha1(old_file->sha1)?"HEAD":sha1_to_hex(old_rev_sha1), lineno_str); + html("<td class='lineno'><a class='no' href='"); + html(cgit_fileurl(ctx.repo->url, "tree", old_file->path, id_str)); + htmlf("' id='%s' name='%s'>%s</a>", lineno_str, lineno_str, lineno_str + 1); + html("</td>"); + htmlf("<td class='%s'>", class); + } else if (old_line) htmlf("<td class='lineno'></td><td class='%s'>", class); else htmlf("<td class='lineno'></td><td class='%s_dark'>", class); if (old_line) { if (lcs) print_part_with_lcs("del", old_line, lcs); else html_txt(old_line); } - html("</td>"); - if (new_line_no > 0) - htmlf("<td class='lineno'>%d</td><td class='%s'>", - new_line_no, class); - else if (new_line) + html("</td>\n"); + if (new_line_no > 0) { + struct diff_filespec *new_file = cgit_get_current_new_file(); + char *lineno_str = fmt("n%d", new_line_no); + char *id_str = fmt("%s#%s", is_null_sha1(new_file->sha1)?"HEAD":sha1_to_hex(new_rev_sha1), lineno_str); + html("<td class='lineno'><a class='no' href='"); + html(cgit_fileurl(ctx.repo->url, "tree", new_file->path, id_str)); + htmlf("' id='%s' name='%s'>%s</a>", lineno_str, lineno_str, lineno_str + 1); + html("</td>"); + htmlf("<td class='%s'>", class); + } else if (new_line) htmlf("<td class='lineno'></td><td class='%s'>", class); else htmlf("<td class='lineno'></td><td class='%s_dark'>", class); if (new_line) { if (lcs) print_part_with_lcs("add", new_line, lcs); else html_txt(new_line); } html("</td></tr>"); if (lcs) free(lcs); if (new_line) free(new_line); if (old_line) free(old_line); } static void print_deferred_old_lines() { struct deferred_lines *iter_old, *tmp; iter_old = deferred_old; while (iter_old) { print_ssdiff_line("del", iter_old->line_no, iter_old->line, -1, NULL, 0); tmp = iter_old->next; free(iter_old); iter_old = tmp; } } static void print_deferred_new_lines() { struct deferred_lines *iter_new, *tmp; iter_new = deferred_new; while (iter_new) { print_ssdiff_line("add", -1, NULL, iter_new->line_no, iter_new->line, 0); tmp = iter_new->next; free(iter_new); iter_new = tmp; } } static void print_deferred_changed_lines() { struct deferred_lines *iter_old, *iter_new, *tmp; |