diff options
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 25 |
1 files changed, 25 insertions, 0 deletions
@@ -10,6 +10,7 @@ #include "color.h" #include "attr.h" #include "run-command.h" +#include "utf8.h" #ifdef NO_FAST_WORKING_DIRECTORY #define FAST_WORKING_DIRECTORY 0 @@ -469,10 +470,13 @@ static void diff_words_show(struct diff_words_data *diff_words) } } +typedef unsigned long (*sane_truncate_fn)(char *line, unsigned long len); + struct emit_callback { struct xdiff_emit_state xm; int nparents, color_diff; unsigned ws_rule; + sane_truncate_fn truncate; const char **label_path; struct diff_words_data *diff_words; int *found_changesp; @@ -525,6 +529,24 @@ static void emit_add_line(const char *reset, struct emit_callback *ecbdata, cons } } +static unsigned long sane_truncate_line(struct emit_callback *ecb, char *line, unsigned long len) +{ + const char *cp; + unsigned long allot; + size_t l = len; + + if (ecb->truncate) + return ecb->truncate(line, len); + cp = line; + allot = l; + while (0 < l) { + (void) utf8_width(&cp, &l); + if (!cp) + break; /* truncated in the middle? */ + } + return allot - l; +} + static void fn_out_consume(void *priv, char *line, unsigned long len) { int i; @@ -555,8 +577,11 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) ; if (2 <= i && i < len && line[i] == ' ') { ecbdata->nparents = i - 1; + len = sane_truncate_line(ecbdata, line, len); emit_line(diff_get_color(ecbdata->color_diff, DIFF_FRAGINFO), reset, line, len); + if (line[len-1] != '\n') + putchar('\n'); return; } |