ndk-busybox/shell/match.h
Denys Vlasenko 03dad22f8a hush: use ash's read builtin
function                                             old     new   delta
shell_builtin_read                                     -    1000   +1000
set_local_var_from_halves                              -      24     +24
setvar2                                                -       7      +7
...
popstring                                            140     134      -6
ash_main                                            1375    1368      -7
setvar                                               184     174     -10
arith_set_local_var                                   36       -     -36
builtin_read                                        1096     185    -911
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 5/23 up/down: 1038/-1007)        Total: 31 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-01-12 23:29:57 +01:00

34 lines
762 B
C

/* match.h - interface to shell ##/%% matching code */
#ifndef SHELL_MATCH_H
#define SHELL_MATCH_H 1
PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
//TODO! Why ash.c still uses internal version?!
typedef char *(*scan_t)(char *string, char *match, bool match_at_left);
char *scanleft(char *string, char *match, bool match_at_left);
char *scanright(char *string, char *match, bool match_at_left);
static inline scan_t pick_scan(char op1, char op2, bool *match_at_left)
{
/* # - scanleft
* ## - scanright
* % - scanright
* %% - scanleft
*/
if (op1 == '#') {
*match_at_left = true;
return op1 == op2 ? scanright : scanleft;
} else {
*match_at_left = false;
return op1 == op2 ? scanleft : scanright;
}
}
POP_SAVED_FUNCTION_VISIBILITY
#endif