| /* |
| * Whitespace rules |
| * |
| * Copyright (c) 2007 Junio C Hamano |
| */ |
| |
| #include "cache.h" |
| #include "attr.h" |
| |
| static struct whitespace_rule { |
| const char *rule_name; |
| unsigned rule_bits; |
| } whitespace_rule_names[] = { |
| { "trailing-space", WS_TRAILING_SPACE }, |
| { "space-before-tab", WS_SPACE_BEFORE_TAB }, |
| { "indent-with-non-tab", WS_INDENT_WITH_NON_TAB }, |
| }; |
| |
| unsigned parse_whitespace_rule(const char *string) |
| { |
| unsigned rule = WS_DEFAULT_RULE; |
| |
| while (string) { |
| int i; |
| size_t len; |
| const char *ep; |
| int negated = 0; |
| |
| string = string + strspn(string, ", \t\n\r"); |
| ep = strchr(string, ','); |
| if (!ep) |
| len = strlen(string); |
| else |
| len = ep - string; |
| |
| if (*string == '-') { |
| negated = 1; |
| string++; |
| len--; |
| } |
| if (!len) |
| break; |
| for (i = 0; i < ARRAY_SIZE(whitespace_rule_names); i++) { |
| if (strncmp(whitespace_rule_names[i].rule_name, |
| string, len)) |
| continue; |
| if (negated) |
| rule &= ~whitespace_rule_names[i].rule_bits; |
| else |
| rule |= whitespace_rule_names[i].rule_bits; |
| break; |
| } |
| string = ep; |
| } |
| return rule; |
| } |
| |
| 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); |
| check[0].attr = attr_whitespace; |
| } |
| |
| unsigned whitespace_rule(const char *pathname) |
| { |
| struct git_attr_check attr_whitespace_rule; |
| |
| setup_whitespace_attr_check(&attr_whitespace_rule); |
| if (!git_checkattr(pathname, 1, &attr_whitespace_rule)) { |
| const char *value; |
| |
| value = attr_whitespace_rule.value; |
| if (ATTR_TRUE(value)) { |
| /* true (whitespace) */ |
| unsigned all_rule = 0; |
| int i; |
| for (i = 0; i < ARRAY_SIZE(whitespace_rule_names); i++) |
| all_rule |= whitespace_rule_names[i].rule_bits; |
| return all_rule; |
| } else if (ATTR_FALSE(value)) { |
| /* false (-whitespace) */ |
| return 0; |
| } else if (ATTR_UNSET(value)) { |
| /* reset to default (!whitespace) */ |
| return whitespace_rule_cfg; |
| } else { |
| /* string */ |
| return parse_whitespace_rule(value); |
| } |
| } else { |
| return whitespace_rule_cfg; |
| } |
| } |