Currently any whitespace highlighting happens outside the emit_line
function. Teach the highlighting to emit_line, triggered by a new
parameter.
Signed-off-by: Stefan Beller <sbel...@google.com>
Signed-off-by: Junio C Hamano <gits...@pobox.com>
---
diff.c | 107 ++++++++++++++++++++++++++++++++++++++---------------------------
diff.h | 2 ++
2 files changed, 65 insertions(+), 44 deletions(-)
diff --git a/diff.c b/diff.c
index 76cafde4be..514c5facd7 100644
--- a/diff.c
+++ b/diff.c
@@ -516,15 +516,34 @@ static void check_blank_at_eof(mmfile_t *mf1, mmfile_t
*mf2,
ecbdata->blank_at_eof_in_postimage = (at - l2) + 1;
}
-static void emit_line(struct diff_options *o, const char *set, const char
*reset,
- int add_line_prefix, int sign, const char *line, int len)
+
+static void emit_line(struct diff_options *o,
+ const char *set, const char *reset,
+ int add_line_prefix, int markup_ws,
+ int sign, const char *line, int len)
{
+ const char *ws;
int has_trailing_newline, has_trailing_carriage_return;
FILE *file = o->file;
if (add_line_prefix)
fputs(diff_line_prefix(o), file);
+ if (markup_ws) {
+ ws = diff_get_color(o->use_color, DIFF_WHITESPACE);
+
+ if (set)
+ fputs(set, file);
+ if (sign)
+ fputc(sign, file);
+ if (reset)
+ fputs(reset, file);
+ ws = diff_get_color(o->use_color, DIFF_WHITESPACE);
+ ws_check_emit(line, len, o->ws_rule,
+ file, set, reset, ws);
+ return;
+ }
+
has_trailing_newline = (len > 0 && line[len-1] == '\n');
if (has_trailing_newline)
len--;
@@ -558,14 +577,14 @@ static void emit_line_fmt(struct diff_options *o,
strbuf_vaddf(&sb, fmt, ap);
va_end(ap);
- emit_line(o, set, reset, add_line_prefix, 0, sb.buf, sb.len);
+ emit_line(o, set, reset, add_line_prefix, 0, 0, sb.buf, sb.len);
strbuf_release(&sb);
}
void diff_emit_line(struct diff_options *o, const char *set, const char *reset,
const char *line, int len)
{
- emit_line(o, set, reset, 1, 0, line, len);
+ emit_line(o, set, reset, 1, 0, 0, line, len);
}
static int new_blank_line_at_eof(struct emit_callback *ecbdata, const char
*line, int len)
@@ -596,16 +615,15 @@ static void emit_line_checked(const char *reset,
}
if (!ws)
- emit_line(ecbdata->opt, set, reset, 1, sign, line, len);
+ emit_line(ecbdata->opt, set, reset, 1, 0, sign, line, len);
else if (sign == '+' && new_blank_line_at_eof(ecbdata, line, len))
/* Blank line at EOF - paint '+' as well */
- emit_line(ecbdata->opt, ws, reset, 1, sign, line, len);
+ emit_line(ecbdata->opt, ws, reset, 1, 1, sign, line, len);
else {
/* Emit just the prefix, then the rest. */
- emit_line(ecbdata->opt, set, reset, 1, sign, "", 0);
- ws_check_emit(line, len, ecbdata->ws_rule,
- ecbdata->opt->file, set, reset, ws);
+ emit_line(ecbdata->opt, set, reset, 1, 1, sign, line, len);
}
+
}
static void emit_add_line(const char *reset,
@@ -652,7 +670,7 @@ static void emit_hunk_header(struct emit_callback *ecbdata,
if (len < 10 ||
memcmp(line, atat, 2) ||
!(ep = memmem(line + 2, len - 2, atat, 2))) {
- emit_line(ecbdata->opt, context, reset, 1, 0, line, len);
+ emit_line(ecbdata->opt, context, reset, 1, 0, 0, line, len);
return;
}
ep += 2; /* skip over @@ */
@@ -688,7 +706,7 @@ static void emit_hunk_header(struct emit_callback *ecbdata,
strbuf_add(&msgbuf, line + len, org_len - len);
strbuf_complete_line(&msgbuf);
- emit_line(ecbdata->opt, "", "", 1, 0, msgbuf.buf, msgbuf.len);
+ emit_line(ecbdata->opt, "", "", 1, 0, 0, msgbuf.buf, msgbuf.len);
strbuf_release(&msgbuf);
}
@@ -759,7 +777,7 @@ static void emit_rewrite_lines(struct emit_callback *ecb,
static const char *nneof = "\\ No newline at end of file\n";
const char *context = diff_get_color(ecb->color_diff,
DIFF_CONTEXT);
- emit_line(ecb->opt, context, reset, 1, 0,
+ emit_line(ecb->opt, context, reset, 1, 0, 0,
nneof, strlen(nneof));
strbuf_release(&sb);
}
@@ -835,7 +853,7 @@ static void emit_rewrite_diff(const char *name_a,
strbuf_addstr(&out, " +");
add_line_count(&out, lc_b);
strbuf_addstr(&out, " @@\n");
- emit_line(o, fraginfo, reset, 1, 0, out.buf, out.len);
+ emit_line(o, fraginfo, reset, 1, 0, 0, out.buf, out.len);
strbuf_release(&out);
if (lc_a && !o->irreversible_delete)
@@ -908,7 +926,7 @@ static int fn_out_diff_words_write_helper(struct
diff_options *o,
while (count) {
char *p = memchr(buf, '\n', count);
if (print)
- emit_line(o, NULL, NULL, 1, 0, "", 0);
+ emit_line(o, NULL, NULL, 1, 0, 0, "", 0);
if (p != buf) {
const char *reset = st_el->color && *st_el->color ?
@@ -917,14 +935,14 @@ static int fn_out_diff_words_write_helper(struct
diff_options *o,
strbuf_add(&sb, buf, p ? p - buf : count);
strbuf_addstr(&sb, st_el->suffix);
emit_line(o, st_el->color, reset,
- 0, 0, sb.buf, sb.len);
+ 0, 0, 0, sb.buf, sb.len);
strbuf_reset(&sb);
}
if (!p)
goto out;
strbuf_addstr(&sb, newline);
- emit_line(o, NULL, NULL, 0, 0, sb.buf, sb.len);
+ emit_line(o, NULL, NULL, 0, 0, 0, sb.buf, sb.len);
strbuf_reset(&sb);
count -= p + 1 - buf;
buf = p + 1;
@@ -1139,7 +1157,7 @@ static void diff_words_show(struct diff_words_data
*diff_words)
if (diff_words->current_plus != diff_words->plus.text.ptr +
diff_words->plus.text.size) {
if (color_words_output_graph_prefix(diff_words))
- emit_line(diff_words->opt, NULL, NULL, 1, 0, "", 0);
+ emit_line(diff_words->opt, NULL, NULL, 1, 0, 0, "", 0);
fn_out_diff_words_write_helper(diff_words->opt,
&style->ctx, style->newline,
diff_words->plus.text.ptr + diff_words->plus.text.size
@@ -1298,7 +1316,7 @@ static void fn_out_consume(void *priv, char *line,
unsigned long len)
o->found_changes = 1;
if (ecbdata->header) {
- emit_line(o, NULL, NULL, 0, 0,
+ emit_line(o, NULL, NULL, 0, 0, 0,
ecbdata->header->buf, ecbdata->header->len);
strbuf_release(ecbdata->header);
ecbdata->header = NULL;
@@ -1351,8 +1369,8 @@ static void fn_out_consume(void *priv, char *line,
unsigned long len)
}
diff_words_flush(ecbdata);
if (ecbdata->diff_words->type == DIFF_WORDS_PORCELAIN) {
- emit_line(o, context, reset, 1, 0, line, len);
- emit_line(o, NULL, NULL, 0, 0, "~\n", 2);
+ emit_line(o, context, reset, 1, 0, 0, line, len);
+ emit_line(o, NULL, NULL, 0, 0, 0, "~\n", 2);
} else {
/*
* Skip the prefix character, if any. With
@@ -1363,7 +1381,7 @@ static void fn_out_consume(void *priv, char *line,
unsigned long len)
line++;
len--;
}
- emit_line(o, context, reset, 1, 0, line, len);
+ emit_line(o, context, reset, 1, 0, 0, line, len);
}
return;
}
@@ -1386,7 +1404,7 @@ static void fn_out_consume(void *priv, char *line,
unsigned long len)
/* incomplete line at the end */
ecbdata->lno_in_preimage++;
emit_line(o, diff_get_color(ecbdata->color_diff, DIFF_CONTEXT),
- reset, 1, 0, line, len);
+ reset, 1, 0, 0, line, len);
break;
}
}
@@ -1575,7 +1593,7 @@ static void print_stat_summary_0(struct diff_options
*options, int files,
if (!files) {
assert(insertions == 0 && deletions == 0);
strbuf_addstr(&sb, " 0 files changed");
- emit_line(options, NULL, NULL, 1, 0, sb.buf, sb.len);
+ emit_line(options, NULL, NULL, 1, 0, 0, sb.buf, sb.len);
return;
}
@@ -1603,7 +1621,7 @@ static void print_stat_summary_0(struct diff_options
*options, int files,
deletions);
}
strbuf_addch(&sb, '\n');
- emit_line(options, NULL, NULL, 1, 0, sb.buf, sb.len);
+ emit_line(options, NULL, NULL, 1, 0, 0, sb.buf, sb.len);
strbuf_release(&sb);
}
@@ -1787,7 +1805,7 @@ static void show_stats(struct diffstat_t *data, struct
diff_options *options)
strbuf_addf(&out, " %*s", number_width, "Bin");
if (!added && !deleted) {
strbuf_addch(&out, '\n');
- emit_line(options, NULL, NULL, 1, 0, out.buf,
out.len);
+ emit_line(options, NULL, NULL, 1, 0, 0,
out.buf, out.len);
strbuf_reset(&out);
continue;
}
@@ -1797,14 +1815,14 @@ static void show_stats(struct diffstat_t *data, struct
diff_options *options)
strbuf_addf(&out, "%s%"PRIuMAX"%s",
add_c, added, reset);
strbuf_addstr(&out, " bytes\n");
- emit_line(options, NULL, NULL, 1, 0, out.buf, out.len);
+ emit_line(options, NULL, NULL, 1, 0, 0, out.buf,
out.len);
strbuf_reset(&out);
continue;
}
else if (file->is_unmerged) {
show_name(&out, prefix, name, len);
strbuf_addstr(&out, " Unmerged\n");
- emit_line(options, NULL, NULL, 1, 0, out.buf, out.len);
+ emit_line(options, NULL, NULL, 1, 0, 0, out.buf,
out.len);
strbuf_reset(&out);
continue;
}
@@ -1835,7 +1853,7 @@ static void show_stats(struct diffstat_t *data, struct
diff_options *options)
show_graph(&out, '+', add, add_c, reset);
show_graph(&out, '-', del, del_c, reset);
strbuf_addch(&out, '\n');
- emit_line(options, NULL, NULL, 1, 0, out.buf, out.len);
+ emit_line(options, NULL, NULL, 1, 0, 0, out.buf, out.len);
strbuf_reset(&out);
}
@@ -1857,7 +1875,7 @@ static void show_stats(struct diffstat_t *data, struct
diff_options *options)
if (i < count)
continue;
if (!extra_shown)
- emit_line(options, NULL, NULL, 1, 0,
+ emit_line(options, NULL, NULL, 1, 0, 0,
" ...\n", strlen(" ...\n"));
extra_shown = 1;
}
@@ -2211,7 +2229,7 @@ static void checkdiff_consume(void *priv, char *line,
unsigned long len)
fprintf(data->o->file, "%s%s:%d: %s.\n",
line_prefix, data->filename, data->lineno, err);
free(err);
- emit_line(data->o, set, reset, 1, 0, line, 1);
+ emit_line(data->o, set, reset, 1, 0, 0, line, 1);
ws_check_emit(line + 1, len - 1, data->ws_rule,
data->o->file, set, reset, ws);
} else if (line[0] == ' ') {
@@ -2307,9 +2325,9 @@ static void emit_binary_diff_body(struct diff_options *o,
line[len++] = '\n';
line[len] = '\0';
- emit_line(o, NULL, NULL, 1, 0, line, len);
+ emit_line(o, NULL, NULL, 1, 0, 0, line, len);
}
- emit_line(o, NULL, NULL, 1, 0, "\n", 1);
+ emit_line(o, NULL, NULL, 1, 0, 0, "\n", 1);
free(data);
}
@@ -2318,7 +2336,7 @@ static void emit_binary_diff(struct diff_options *o,
{
const char *s = "GIT binary patch\n";
const int len = strlen(s);
- emit_line(o, NULL, NULL, 1, 0, s, len);
+ emit_line(o, NULL, NULL, 1, 0, 0, s, len);
emit_binary_diff_body(o, one, two);
emit_binary_diff_body(o, two, one);
}
@@ -2461,7 +2479,7 @@ static void builtin_diff(const char *name_a,
if (complete_rewrite &&
(textconv_one || !diff_filespec_is_binary(one)) &&
(textconv_two || !diff_filespec_is_binary(two))) {
- emit_line(o, NULL, NULL, 0, 0, header.buf, header.len);
+ emit_line(o, NULL, NULL, 0, 0, 0, header.buf,
header.len);
strbuf_reset(&header);
emit_rewrite_diff(name_a, name_b, one, two,
textconv_one, textconv_two, o);
@@ -2471,7 +2489,7 @@ static void builtin_diff(const char *name_a,
}
if (o->irreversible_delete && lbl[1][0] == '/') {
- emit_line(o, NULL, NULL, 0, 0, header.buf, header.len);
+ emit_line(o, NULL, NULL, 0, 0, 0, header.buf, header.len);
strbuf_reset(&header);
goto free_ab_and_return;
} else if (!DIFF_OPT_TST(o, TEXT) &&
@@ -2482,11 +2500,11 @@ static void builtin_diff(const char *name_a,
!DIFF_OPT_TST(o, BINARY)) {
if (!oidcmp(&one->oid, &two->oid)) {
if (must_show_header)
- emit_line(o, NULL, NULL, 0, 0,
+ emit_line(o, NULL, NULL, 0, 0, 0,
header.buf, header.len);
goto free_ab_and_return;
}
- emit_line(o, NULL, NULL, 0, 0,
+ emit_line(o, NULL, NULL, 0, 0, 0,
header.buf, header.len);
emit_line_fmt(o, NULL, NULL, 1,
"Binary files %s and %s differ\n",
@@ -2499,11 +2517,11 @@ static void builtin_diff(const char *name_a,
if (mf1.size == mf2.size &&
!memcmp(mf1.ptr, mf2.ptr, mf1.size)) {
if (must_show_header)
- emit_line(o, NULL, NULL, 0, 0,
+ emit_line(o, NULL, NULL, 0, 0, 0,
header.buf, header.len);
goto free_ab_and_return;
}
- emit_line(o, NULL, NULL, 0, 0,
+ emit_line(o, NULL, NULL, 0, 0, 0,
header.buf, header.len);
strbuf_reset(&header);
if (DIFF_OPT_TST(o, BINARY))
@@ -2523,7 +2541,7 @@ static void builtin_diff(const char *name_a,
const struct userdiff_funcname *pe;
if (must_show_header) {
- emit_line(o, NULL, NULL, 0, 0, header.buf, header.len);
+ emit_line(o, NULL, NULL, 0, 0, 0, header.buf,
header.len);
strbuf_reset(&header);
}
@@ -2540,6 +2558,7 @@ static void builtin_diff(const char *name_a,
ecbdata.label_path = lbl;
ecbdata.color_diff = want_color(o->use_color);
ecbdata.ws_rule = whitespace_rule(name_b);
+ o->ws_rule = ecbdata.ws_rule;
if (ecbdata.ws_rule & WS_BLANK_AT_EOF)
check_blank_at_eof(&mf1, &mf2, &ecbdata);
ecbdata.opt = o;
@@ -4514,7 +4533,7 @@ static void show_file_mode_name(struct diff_options *opt,
const char *newdelete,
quote_c_style(fs->path, &sb, NULL, 0);
strbuf_addch(&sb, '\n');
- emit_line(opt, NULL, NULL, 1, 0, sb.buf, sb.len);
+ emit_line(opt, NULL, NULL, 1, 0, 0, sb.buf, sb.len);
strbuf_release(&sb);
}
@@ -4566,7 +4585,7 @@ static void diff_summary(struct diff_options *opt, struct
diff_filepair *p)
strbuf_addstr(&sb, " rewrite ");
quote_c_style(p->two->path, &sb, NULL, 0);
strbuf_addf(&sb, " (%d%%)\n", similarity_index(p));
- emit_line(opt, NULL, NULL, 1, 0, sb.buf, sb.len);
+ emit_line(opt, NULL, NULL, 1, 0, 0, sb.buf, sb.len);
}
show_mode_change(opt, p, !p->score);
break;
@@ -4873,10 +4892,10 @@ void diff_flush(struct diff_options *options)
term[0] = options->line_termination;
term[1] = '\0';
- emit_line(options, NULL, NULL, 1, 0, term, !!term[0]);
+ emit_line(options, NULL, NULL, 1, 0, 0, term,
!!term[0]);
if (options->stat_sep) {
/* attach patch instead of inline */
- emit_line(options, NULL, NULL, 0, 0,
+ emit_line(options, NULL, NULL, 0, 0, 0,
options->stat_sep,
strlen(options->stat_sep));
}
diff --git a/diff.h b/diff.h
index 56d8dd036e..85948ed65a 100644
--- a/diff.h
+++ b/diff.h
@@ -186,6 +186,8 @@ struct diff_options {
void *output_prefix_data;
int diff_path_counter;
+
+ unsigned ws_rule;
};
void diff_emit_line(struct diff_options *o, const char *set, const char *reset,
--
2.13.0.18.g7d86cc8ba0
