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Merge branch 'jc/maint-1.6.0-blank-at-eof' (early part) into jc/maint-blank-at-eof

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* 'jc/maint-1.6.0-blank-at-eof' (early part):
  diff --whitespace: fix blank lines at end
  core.whitespace: split trailing-space into blank-at-{eol,eof}
  diff --color: color blank-at-eof
  diff --whitespace=warn/error: fix blank-at-eof check
  diff --whitespace=warn/error: obey blank-at-eof
  diff.c: the builtin_diff() deals with only two-file comparison
  apply --whitespace: warn blank but not necessarily empty lines at EOF
  apply --whitespace=warn/error: diagnose blank at EOF
  apply.c: split check_whitespace() into two
  apply --whitespace=fix: detect new blank lines at eof correctly
  apply --whitespace=fix: fix handling of blank lines at the eof
This commit is contained in:
Junio C Hamano
2009-09-15 03:28:08 -07:00
parent 4197ce3c6d d68fe26f3e
commit afd9db4173
8 changed files with 288 additions and 70 deletions
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19
ws.c
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@@ -16,6 +16,8 @@ static struct whitespace_rule {
{ "space-before-tab", WS_SPACE_BEFORE_TAB, 0 },
{ "indent-with-non-tab", WS_INDENT_WITH_NON_TAB, 0 },
{ "cr-at-eol", WS_CR_AT_EOL, 1 },
{ "blank-at-eol", WS_BLANK_AT_EOL, 0 },
{ "blank-at-eof", WS_BLANK_AT_EOF, 0 },
};
unsigned parse_whitespace_rule(const char *string)
@@ -102,8 +104,17 @@ unsigned whitespace_rule(const char *pathname)
char *whitespace_error_string(unsigned ws)
{
struct strbuf err = STRBUF_INIT;
if (ws & WS_TRAILING_SPACE)
if ((ws & WS_TRAILING_SPACE) == WS_TRAILING_SPACE)
strbuf_addstr(&err, "trailing whitespace");
else {
if (ws & WS_BLANK_AT_EOL)
strbuf_addstr(&err, "trailing whitespace");
if (ws & WS_BLANK_AT_EOF) {
if (err.len)
strbuf_addstr(&err, ", ");
strbuf_addstr(&err, "new blank line at EOF");
}
}
if (ws & WS_SPACE_BEFORE_TAB) {
if (err.len)
strbuf_addstr(&err, ", ");
@@ -141,11 +152,11 @@ static unsigned ws_check_emit_1(const char *line, int len, unsigned ws_rule,
}
/* Check for trailing whitespace. */
if (ws_rule & WS_TRAILING_SPACE) {
if (ws_rule & WS_BLANK_AT_EOL) {
for (i = len - 1; i >= 0; i--) {
if (isspace(line[i])) {
trailing_whitespace = i;
result |= WS_TRAILING_SPACE;
result |= WS_BLANK_AT_EOL;
}
else
break;
@@ -261,7 +272,7 @@ int ws_fix_copy(char *dst, const char *src, int len, unsigned ws_rule, int *erro
/*
* Strip trailing whitespace
*/
if (ws_rule & WS_TRAILING_SPACE) {
if (ws_rule & WS_BLANK_AT_EOL) {
if (0 < len && src[len - 1] == '\n') {
add_nl_to_tail = 1;
len--;