| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* match.h - interface to shell ##/%% matching code */ |
| 2 | |
| 3 | #ifndef SHELL_MATCH_H |
| 4 | #define SHELL_MATCH_H 1 |
| 5 | |
| 6 | PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN |
| 7 | |
| 8 | //TODO! Why ash.c still uses internal version?! |
| 9 | |
| 10 | enum { |
| 11 | SCAN_MOVE_FROM_LEFT = (1 << 0), |
| 12 | SCAN_MOVE_FROM_RIGHT = (1 << 1), |
| 13 | SCAN_MATCH_LEFT_HALF = (1 << 2), |
| 14 | SCAN_MATCH_RIGHT_HALF = (1 << 3), |
| 15 | }; |
| 16 | |
| 17 | char* FAST_FUNC scan_and_match(char *string, const char *pattern, unsigned flags); |
| 18 | |
| 19 | static inline unsigned pick_scan(char op1, char op2) |
| 20 | { |
| 21 | unsigned scan_flags; |
| 22 | if (op1 == '#') { |
| 23 | scan_flags = SCAN_MATCH_LEFT_HALF + |
| 24 | (op1 == op2 ? SCAN_MOVE_FROM_RIGHT : SCAN_MOVE_FROM_LEFT); |
| 25 | } else { /* % */ |
| 26 | scan_flags = SCAN_MATCH_RIGHT_HALF + |
| 27 | (op1 == op2 ? SCAN_MOVE_FROM_LEFT : SCAN_MOVE_FROM_RIGHT); |
| 28 | } |
| 29 | return scan_flags; |
| 30 | } |
| 31 | |
| 32 | POP_SAVED_FUNCTION_VISIBILITY |
| 33 | |
| 34 | #endif |