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__collate_substitute() do something non-trivial only for German. For everyone

Browse source 
else, it is equivalent to strdup(). So, we will check if  the substitution
tables are trivial at the load time, and possibly save 2 calls to
__collate_substitute() in strcoll().

Still, __collate_substitute() should not exist.
This commit is contained in:
Dmitrij Tejblum 1999-09-12 21:15:28 +00:00
parent 2016e4e906
commit e755fb7671
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=51216
3 changed files with 25 additions and 6 deletions
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15
lib/libc/locale/collate.c
View file

@ -38,6 +38,7 @@
#include "setlocale.h"
int __collate_load_error = 1;
int __collate_substitute_nontrivial;
char __collate_version[STR_LEN];
u_char __collate_substitute_table[UCHAR_MAX + 1][STR_LEN];
struct __collate_st_char_pri __collate_char_pri_table[UCHAR_MAX + 1];
@ -59,7 +60,7 @@ __collate_load_tables(encoding)
{
char buf[PATH_MAX];
FILE *fp;
int save_load_error;
int i, save_load_error;
save_load_error = __collate_load_error;
__collate_load_error = 1;
@ -95,6 +96,16 @@ __collate_load_tables(encoding)
fp);
fclose(fp);
__collate_load_error = 0;
__collate_substitute_nontrivial = 0;
for (i = 0; i < UCHAR_MAX + 1; i++) {
if (__collate_substitute_table[i][0] != i ||
__collate_substitute_table[i][1] != 0) {
__collate_substitute_nontrivial = 1;
break;
}
}
return 0;
}
@ -128,7 +139,7 @@ __collate_substitute(s)
void
__collate_lookup(t, len, prim, sec)
u_char *t;
const u_char *t;
int *len, *prim, *sec;
{
struct __collate_st_chain_pri *p2;

3
lib/libc/locale/collate.h
View file

@ -47,6 +47,7 @@ struct __collate_st_chain_pri {
};
extern int __collate_load_error;
extern int __collate_substitute_nontrivial;
extern char __collate_version[STR_LEN];
extern u_char __collate_substitute_table[UCHAR_MAX + 1][STR_LEN];
extern struct __collate_st_char_pri __collate_char_pri_table[UCHAR_MAX + 1];
@ -56,7 +57,7 @@ __BEGIN_DECLS
u_char *__collate_strdup __P((u_char *));
u_char *__collate_substitute __P((const u_char *));
int __collate_load_tables __P((char *));
void __collate_lookup __P((u_char *, int *, int *, int *));
void __collate_lookup __P((const u_char *, int *, int *, int *));
int __collate_range_cmp __P((int, int));
#ifdef COLLATE_DEBUG
void __collate_print_tables __P((void));

13
lib/libc/string/strcoll.c
View file

@ -36,15 +36,22 @@ strcoll(s, s2)
const char *s, *s2;
{
int len, len2, prim, prim2, sec, sec2, ret, ret2;
char *tt, *t, *tt2, *t2;
const char *t, *t2;
char *tt, *tt2;
if (__collate_load_error)
return strcmp(s, s2);
len = len2 = 1;
ret = ret2 = 0;
tt = t = __collate_substitute(s);
tt2 = t2 = __collate_substitute(s2);
if (__collate_substitute_nontrivial) {
t = tt = __collate_substitute(s);
t2 = tt2 = __collate_substitute(s2);
} else {
tt = tt2 = NULL;
t = s;
t2 = s2;
}
while(*t && *t2) {
prim = prim2 = 0;
while(*t && !prim) {