admin/mruby-mruby
1
0
Fork 0
mirror of https://github.com/mruby/mruby synced 2026-06-08 16:11:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

mruby-pack/pack.c: make base64_dec_tab a static array of chars.

Browse Source
This commit is contained in:
Yukihiro "Matz" Matsumoto
2022-08-21 19:25:16 +09:00
parent 9b4bbed047
commit 35a5678899
1 changed files with 10 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mrbgems/mruby-pack/src/pack.c
+10 -20
View File
@@ -70,9 +70,17 @@ enum pack_type {
#define PACK_BASE64_IGNORE 0xff
#define PACK_BASE64_PADDING 0xfe
const static unsigned char base64chars[] =
const static unsigned char base64chars[64] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static unsigned char base64_dec_tab[128];
const static unsigned char base64_dec_tab[128] =
"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x3e\xff\xff\xff\x3f"
"\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\xff\xff\xff\xfe\xff\xff"
"\xff\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e"
"\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\xff\xff\xff\xff\xff"
"\xff\x1a\x1b\x1c\x1d\x1e\x1f\x20\x21\x22\x23\x24\x25\x26\x27\x28"
"\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31\x32\x33\xff\xff\xff\xff\xff";
static unsigned int
hex2int(unsigned char ch)
@@ -87,22 +95,6 @@ hex2int(unsigned char ch)
return -1;
}
static void
make_base64_dec_tab(void)
{
int i;
memset(base64_dec_tab, PACK_BASE64_IGNORE, sizeof(base64_dec_tab));
for (i = 0; i < 26; i++)
base64_dec_tab['A' + i] = i;
for (i = 0; i < 26; i++)
base64_dec_tab['a' + i] = i + 26;
for (i = 0; i < 10; i++)
base64_dec_tab['0' + i] = i + 52;
base64_dec_tab['+'+0] = 62;
base64_dec_tab['/'+0] = 63;
base64_dec_tab['='+0] = PACK_BASE64_PADDING;
}
static mrb_value
str_len_ensure(mrb_state *mrb, mrb_value str, mrb_int len)
{
@@ -1596,8 +1588,6 @@ mrb_pack_unpack1(mrb_state *mrb, mrb_value str)
void
mrb_mruby_pack_gem_init(mrb_state *mrb)
{
make_base64_dec_tab();
mrb_define_method(mrb, mrb->array_class, "pack", mrb_pack_pack, MRB_ARGS_REQ(1));
mrb_define_method(mrb, mrb->string_class, "unpack", mrb_pack_unpack, MRB_ARGS_REQ(1));
mrb_define_method(mrb, mrb->string_class, "unpack1", mrb_pack_unpack1, MRB_ARGS_REQ(1));