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-rwxr-xr-xt/t4124-apply-ws-rule.sh28
-rw-r--r--ws.c3
2 files changed, 30 insertions, 1 deletions
diff --git a/t/t4124-apply-ws-rule.sh b/t/t4124-apply-ws-rule.sh
index 61bfc56..40e5842 100755
--- a/t/t4124-apply-ws-rule.sh
+++ b/t/t4124-apply-ws-rule.sh
@@ -121,6 +121,34 @@ test_expect_success 'whitespace=error-all, no rule (attribute)' '
'
+test_expect_success 'spaces inserted by tab-in-indent' '
+
+ git config core.whitespace -trailing,-space,-indent,tab &&
+ rm -f .gitattributes &&
+ test_fix % &&
+ sed -e "s/_/ /g" -e "s/>/ /" <<-\EOF >expect &&
+ An_SP in an ordinary line>and a HT.
+ ________A HT (%).
+ ________A SP and a HT (@%).
+ _________A SP, a HT and a SP (@%).
+ _______Seven SP.
+ ________Eight SP (#).
+ ________Seven SP and a HT (@%).
+ ________________Eight SP and a HT (@#%).
+ _________Seven SP, a HT and a SP (@%).
+ _________________Eight SP, a HT and a SP (@#%).
+ _______________Fifteen SP (#).
+ ________________Fifteen SP and a HT (@#%).
+ ________________Sixteen SP (#).
+ ________________________Sixteen SP and a HT (@#%).
+ _____a__Five SP, a non WS, two SP.
+ A line with a (!) trailing SP_
+ A line with a (!) trailing HT>
+ EOF
+ test_cmp expect target
+
+'
+
for t in - ''
do
case "$t" in '') tt='!' ;; *) tt= ;; esac
diff --git a/ws.c b/ws.c
index 7302f8f..e350436 100644
--- a/ws.c
+++ b/ws.c
@@ -363,12 +363,13 @@ void ws_fix_copy(struct strbuf *dst, const char *src, int len, unsigned ws_rule,
fixed = 1;
} else if ((ws_rule & WS_TAB_IN_INDENT) && last_tab_in_indent >= 0) {
/* Expand tabs into spaces */
+ int start = dst->len;
int last = last_tab_in_indent + 1;
for (i = 0; i < last; i++) {
if (src[i] == '\t')
do {
strbuf_addch(dst, ' ');
- } while (dst->len % 8);
+ } while ((dst->len - start) % 8);
else
strbuf_addch(dst, src[i]);
}