X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=shell%2Fmatch.h;h=aa393ed1ab8247b803cbbb35ff11e4f167d9e472;hb=7fdb764e2e12119949cc17046d5ad4a13a9be4c6;hp=3fc4de340c7f53996bad658d6d10b97f6a0ff222;hpb=f81e8dbc74186f34faa5ae2b0fe8bdc3f18114ae;p=oweals%2Fbusybox.git diff --git a/shell/match.h b/shell/match.h index 3fc4de340..aa393ed1a 100644 --- a/shell/match.h +++ b/shell/match.h @@ -1,26 +1,34 @@ /* match.h - interface to shell ##/%% matching code */ +#ifndef SHELL_MATCH_H +#define SHELL_MATCH_H 1 + PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN -typedef char *(*scan_t)(char *string, char *match, bool zero); +//TODO! Why ash.c still uses internal version?! + +enum { + SCAN_MOVE_FROM_LEFT = (1 << 0), + SCAN_MOVE_FROM_RIGHT = (1 << 1), + SCAN_MATCH_LEFT_HALF = (1 << 2), + SCAN_MATCH_RIGHT_HALF = (1 << 3), +}; -char *scanleft(char *string, char *match, bool zero); -char *scanright(char *string, char *match, bool zero); +char* FAST_FUNC scan_and_match(char *string, const char *pattern, unsigned flags); -static inline scan_t pick_scan(char op1, char op2, bool *zero) +static inline unsigned pick_scan(char op1, char op2) { - /* # - scanleft - * ## - scanright - * % - scanright - * %% - scanleft - */ + unsigned scan_flags; if (op1 == '#') { - *zero = true; - return op1 == op2 ? scanright : scanleft; - } else { - *zero = false; - return op1 == op2 ? scanleft : scanright; + scan_flags = SCAN_MATCH_LEFT_HALF + + (op1 == op2 ? SCAN_MOVE_FROM_RIGHT : SCAN_MOVE_FROM_LEFT); + } else { /* % */ + scan_flags = SCAN_MATCH_RIGHT_HALF + + (op1 == op2 ? SCAN_MOVE_FROM_LEFT : SCAN_MOVE_FROM_RIGHT); } + return scan_flags; } POP_SAVED_FUNCTION_VISIBILITY + +#endif