| -rw-r--r-- | ui-ssdiff.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/ui-ssdiff.c b/ui-ssdiff.c index 8215051..5673642 100644 --- a/ui-ssdiff.c +++ b/ui-ssdiff.c @@ -1,270 +1,274 @@ #include "cgit.h" #include "html.h" #include "ui-shared.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 int line_from_hunk(char *line, char type) { char *buf1, *buf2; int len; buf1 = strchr(line, type); if (buf1 == NULL) return 0; buf1 += 1; buf2 = strchr(buf1, ','); if (buf2 == NULL) return 0; len = buf2 - buf1; buf2 = xmalloc(len + 1); strncpy(buf2, buf1, len); buf2[len] = '\0'; int res = atoi(buf2); free(buf2); return res; } static char *replace_tabs(char *line) { char *prev_buf = line; char *cur_buf; int linelen = strlen(line); int n_tabs = 0; int i; char *result; char *spaces = " "; if (linelen == 0) { result = xmalloc(1); result[0] = '\0'; return result; } for (i = 0; i < linelen; i++) if (line[i] == '\t') n_tabs += 1; result = xmalloc(linelen + n_tabs * 8 + 1); result[0] = '\0'; while (1) { cur_buf = strchr(prev_buf, '\t'); if (!cur_buf) { strcat(result, prev_buf); break; } else { strcat(result, " "); strncat(result, spaces, 8 - (strlen(result) % 8)); strncat(result, prev_buf, cur_buf - prev_buf); } prev_buf = cur_buf + 1; } return result; } static void deferred_old_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_old) { deferred_old_last->next = item; deferred_old_last = item; } else { deferred_old = deferred_old_last = item; } } 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_ssdiff_line(char *class, int old_line_no, char *old_line, int new_line_no, char *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) + htmlf("<td class='lineno'></td><td class='%s'>", class); else htmlf("<td class='lineno'></td><td class='%s_dark'>", class); if (old_line) { old_line = replace_tabs(old_line + 1); html_txt(old_line); free(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) + htmlf("<td class='lineno'></td><td class='%s'>", class); else htmlf("<td class='lineno'></td><td class='%s_dark'>", class); if (new_line) { new_line = replace_tabs(new_line + 1); html_txt(new_line); free(new_line); } html("</td></tr>"); } 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); 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); tmp = iter_new->next; free(iter_new); iter_new = tmp; } } static void print_deferred_changed_lines() { struct deferred_lines *iter_old, *iter_new, *tmp; iter_old = deferred_old; iter_new = deferred_new; while (iter_old || iter_new) { if (iter_old && iter_new) print_ssdiff_line("changed", iter_old->line_no, iter_old->line, iter_new->line_no, iter_new->line); else if (iter_old) print_ssdiff_line("changed", iter_old->line_no, iter_old->line, -1, NULL); else if (iter_new) print_ssdiff_line("changed", -1, NULL, iter_new->line_no, iter_new->line); if (iter_old) { tmp = iter_old->next; free(iter_old); iter_old = tmp; } if (iter_new) { tmp = iter_new->next; free(iter_new); iter_new = tmp; } } } void cgit_ssdiff_print_deferred_lines() { if (!deferred_old && !deferred_new) return; if (deferred_old && !deferred_new) print_deferred_old_lines(); else if (!deferred_old && deferred_new) print_deferred_new_lines(); else print_deferred_changed_lines(); deferred_old = deferred_old_last = NULL; deferred_new = deferred_new_last = NULL; } /* * print a single line returned from xdiff */ void cgit_ssdiff_line_cb(char *line, int len) { char c = line[len - 1]; line[len - 1] = '\0'; if (line[0] == '@') { current_old_line = line_from_hunk(line, '-'); current_new_line = line_from_hunk(line, '+'); } if (line[0] == ' ') { if (deferred_old || deferred_new) cgit_ssdiff_print_deferred_lines(); print_ssdiff_line("ctx", current_old_line, line, current_new_line, line); current_old_line += 1; current_new_line += 1; } else if (line[0] == '+') { deferred_new_add(line, current_new_line); current_new_line += 1; } else if (line[0] == '-') { deferred_old_add(line, current_old_line); current_old_line += 1; } else if (line[0] == '@') { html("<tr><td colspan='4' class='hunk'>"); html_txt(line); html("</td></tr>"); } else { html("<tr><td colspan='4' class='ctx'>"); html_txt(line); html("</td></tr>"); } line[len - 1] = c; } void cgit_ssdiff_header_begin() { - current_old_line = 0; - current_new_line = 0; + current_old_line = -1; + current_new_line = -1; html("<tr><td class='space' colspan='4'><div></div></td></tr>"); html("<tr><td class='head' colspan='4'>"); } void cgit_ssdiff_header_end() { html("</td><tr>"); } void cgit_ssdiff_footer() { if (deferred_old || deferred_new) cgit_ssdiff_print_deferred_lines(); html("<tr><td class='foot' colspan='4'></td></tr>"); } |