LXR busybox/shell/match.h

   1/* match.h - interface to shell ##/%% matching code */
   2
   3#ifndef SHELL_MATCH_H
   4#define SHELL_MATCH_H 1
   5
   6PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
   7
   8//TODO! Why ash.c still uses internal version?!
   9
  10enum {
  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
  17char* FAST_FUNC scan_and_match(char *string, const char *pattern, unsigned flags);
  18
  19static 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
  32POP_SAVED_FUNCTION_VISIBILITY
  33
  34#endif
  35