diff options
| -rw-r--r-- | miscutils/bc.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index 47acd7fc3..7ab320a4d 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -758,6 +758,7 @@ struct globals { # define G_exiting 0 #endif #define IS_BC (ENABLE_BC && (!ENABLE_DC || applet_name[0] == 'b')) +#define IS_DC (ENABLE_DC && (!ENABLE_BC || applet_name[0] != 'b')) #if ENABLE_BC @@ -7070,27 +7071,28 @@ static BC_STATUS zbc_vm_stdin(void) str -= 1; else if (buf.v[0] == G.sbgn) str += 1; - } - else if (len > 1 || comment) { + } else { size_t i; for (i = 0; i < len; ++i) { - bool notend = len > i + 1; char c = string[i]; if (i - 1 > len || string[i - 1] != '\\') { - if (G.sbgn == G.send) - str ^= c == G.sbgn; - else if (c == G.send) - str -= 1; - else if (c == G.sbgn) - str += 1; + // checking applet type is cheaper than accessing sbgn/send + if (IS_DC) // dc: sbgn = send = '"' + str ^= (c == '"'); + else { // bc: sbgn = '[', send = ']' + if (c == ']') + str -= 1; + else if (c == '[') + str += 1; + } } - if (c == '/' && notend && !comment && string[i + 1] == '*') { + if (c == '/' && !comment && string[i + 1] == '*') { comment = true; break; } - else if (c == '*' && notend && comment && string[i + 1] == '/') + else if (c == '*' && comment && string[i + 1] == '/') comment = false; } |