diff options
Diffstat (limited to 'ws.c')
-rw-r--r-- | ws.c | 115 |
1 files changed, 84 insertions, 31 deletions
@@ -10,12 +10,16 @@ static struct whitespace_rule { const char *rule_name; unsigned rule_bits; - unsigned loosens_error; + unsigned loosens_error:1, + exclude_default:1; } whitespace_rule_names[] = { { "trailing-space", WS_TRAILING_SPACE, 0 }, { "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 }, + { "tab-in-indent", WS_TAB_IN_INDENT, 0, 1 }, }; unsigned parse_whitespace_rule(const char *string) @@ -52,8 +56,21 @@ unsigned parse_whitespace_rule(const char *string) rule |= whitespace_rule_names[i].rule_bits; break; } + if (strncmp(string, "tabwidth=", 9) == 0) { + unsigned tabwidth = atoi(string + 9); + if (0 < tabwidth && tabwidth < 0100) { + rule &= ~WS_TAB_WIDTH_MASK; + rule |= tabwidth; + } + else + warning("tabwidth %.*s out of range", + (int)(len - 9), string + 9); + } string = ep; } + + if (rule & WS_TAB_IN_INDENT && rule & WS_INDENT_WITH_NON_TAB) + die("cannot enforce both tab-in-indent and indent-with-non-tab"); return rule; } @@ -62,7 +79,7 @@ static void setup_whitespace_attr_check(struct git_attr_check *check) static struct git_attr *attr_whitespace; if (!attr_whitespace) - attr_whitespace = git_attr("whitespace", 10); + attr_whitespace = git_attr("whitespace"); check[0].attr = attr_whitespace; } @@ -77,15 +94,16 @@ unsigned whitespace_rule(const char *pathname) value = attr_whitespace_rule.value; if (ATTR_TRUE(value)) { /* true (whitespace) */ - unsigned all_rule = 0; + unsigned all_rule = ws_tab_width(whitespace_rule_cfg); int i; for (i = 0; i < ARRAY_SIZE(whitespace_rule_names); i++) - if (!whitespace_rule_names[i].loosens_error) + if (!whitespace_rule_names[i].loosens_error && + !whitespace_rule_names[i].exclude_default) all_rule |= whitespace_rule_names[i].rule_bits; return all_rule; } else if (ATTR_FALSE(value)) { /* false (-whitespace) */ - return 0; + return ws_tab_width(whitespace_rule_cfg); } else if (ATTR_UNSET(value)) { /* reset to default (!whitespace) */ return whitespace_rule_cfg; @@ -102,8 +120,17 @@ 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, ", "); @@ -114,6 +141,11 @@ char *whitespace_error_string(unsigned ws) strbuf_addstr(&err, ", "); strbuf_addstr(&err, "indent with spaces"); } + if (ws & WS_TAB_IN_INDENT) { + if (err.len) + strbuf_addstr(&err, ", "); + strbuf_addstr(&err, "tab in indent"); + } return strbuf_detach(&err, NULL); } @@ -141,19 +173,22 @@ 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; } } - /* Check for space before tab in initial indent. */ - for (i = 0; i < len; i++) { + if (trailing_whitespace == -1) + trailing_whitespace = len; + + /* Check indentation */ + for (i = 0; i < trailing_whitespace; i++) { if (line[i] == ' ') continue; if (line[i] != '\t') @@ -164,16 +199,24 @@ static unsigned ws_check_emit_1(const char *line, int len, unsigned ws_rule, fputs(ws, stream); fwrite(line + written, i - written, 1, stream); fputs(reset, stream); + fwrite(line + i, 1, 1, stream); } - } else if (stream) - fwrite(line + written, i - written, 1, stream); - if (stream) - fwrite(line + i, 1, 1, stream); + } else if (ws_rule & WS_TAB_IN_INDENT) { + result |= WS_TAB_IN_INDENT; + if (stream) { + fwrite(line + written, i - written, 1, stream); + fputs(ws, stream); + fwrite(line + i, 1, 1, stream); + fputs(reset, stream); + } + } else if (stream) { + fwrite(line + written, i - written + 1, 1, stream); + } written = i + 1; } /* Check for indent using non-tab. */ - if ((ws_rule & WS_INDENT_WITH_NON_TAB) && i - written >= 8) { + if ((ws_rule & WS_INDENT_WITH_NON_TAB) && i - written >= ws_tab_width(ws_rule)) { result |= WS_INDENT_WITH_NON_TAB; if (stream) { fputs(ws, stream); @@ -188,8 +231,6 @@ static unsigned ws_check_emit_1(const char *line, int len, unsigned ws_rule, * Now the rest of the line starts at "written". * The non-highlighted part ends at "trailing_whitespace". */ - if (trailing_whitespace == -1) - trailing_whitespace = len; /* Emit non-highlighted (middle) segment. */ if (trailing_whitespace - written > 0) { @@ -241,8 +282,8 @@ int ws_blank_line(const char *line, int len, unsigned ws_rule) return 1; } -/* Copy the line to the buffer while fixing whitespaces */ -int ws_fix_copy(char *dst, const char *src, int len, unsigned ws_rule, int *error_count) +/* Copy the line onto the end of the strbuf while fixing whitespaces */ +void ws_fix_copy(struct strbuf *dst, const char *src, int len, unsigned ws_rule, int *error_count) { /* * len is number of bytes to be copied from src, starting @@ -256,12 +297,11 @@ int ws_fix_copy(char *dst, const char *src, int len, unsigned ws_rule, int *erro int last_tab_in_indent = -1; int last_space_in_indent = -1; int need_fix_leading_space = 0; - char *buf; /* * 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--; @@ -290,13 +330,12 @@ int ws_fix_copy(char *dst, const char *src, int len, unsigned ws_rule, int *erro } else if (ch == ' ') { last_space_in_indent = i; if ((ws_rule & WS_INDENT_WITH_NON_TAB) && - 8 <= i - last_tab_in_indent) + ws_tab_width(ws_rule) <= i - last_tab_in_indent) need_fix_leading_space = 1; } else break; } - buf = dst; if (need_fix_leading_space) { /* Process indent ourselves */ int consecutive_spaces = 0; @@ -318,28 +357,42 @@ int ws_fix_copy(char *dst, const char *src, int len, unsigned ws_rule, int *erro char ch = src[i]; if (ch != ' ') { consecutive_spaces = 0; - *dst++ = ch; + strbuf_addch(dst, ch); } else { consecutive_spaces++; - if (consecutive_spaces == 8) { - *dst++ = '\t'; + if (consecutive_spaces == ws_tab_width(ws_rule)) { + strbuf_addch(dst, '\t'); consecutive_spaces = 0; } } } while (0 < consecutive_spaces--) - *dst++ = ' '; + strbuf_addch(dst, ' '); + len -= last; + src += last; + 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 - start) % ws_tab_width(ws_rule)); + else + strbuf_addch(dst, src[i]); + } len -= last; src += last; fixed = 1; } - memcpy(dst, src, len); + strbuf_add(dst, src, len); if (add_cr_to_tail) - dst[len++] = '\r'; + strbuf_addch(dst, '\r'); if (add_nl_to_tail) - dst[len++] = '\n'; + strbuf_addch(dst, '\n'); if (fixed && error_count) (*error_count)++; - return dst + len - buf; } |