diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2018-12-16 21:08:30 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2018-12-16 21:08:30 +0100 |
| commit | 5d18f6be90a940f80c3b7238dc7a8b42a41f55bd (patch) | |
| tree | 9e1bb7f45a3ba0aa834d4a27e62cf5ab0a3d55ff /miscutils/bc.c | |
| parent | cb18b546f7ee9d1c9315c7357ab620e55f0fa8f3 (diff) | |
| download | busybox-5d18f6be90a940f80c3b7238dc7a8b42a41f55bd.tar.gz | |
bc: fix "print 1,2,3" parsing
function old new delta
zbc_parse_stmt_possibly_auto 2245 2180 -65
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-65) Total: -65 bytes
text data bss dec hex filename
982237 485 7296 990018 f1b42 busybox_old
982152 485 7296 989933 f1aed busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'miscutils/bc.c')
| -rw-r--r-- | miscutils/bc.c | 31 |
1 files changed, 8 insertions, 23 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index 2dc64dbc6..9f40a551e 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -4048,38 +4048,23 @@ static BC_STATUS zbc_parse_print(BcParse *p) { BcStatus s; BcLexType type; - bool comma; - s = zbc_lex_next(&p->l); - if (s) RETURN_STATUS(s); - - type = p->l.t.t; - - if (type == BC_LEX_SCOLON || type == BC_LEX_NLINE) - RETURN_STATUS(bc_error("bad print statement")); - - comma = false; - while (type != BC_LEX_SCOLON && type != BC_LEX_NLINE) { + for (;;) { + s = zbc_lex_next(&p->l); + if (s) RETURN_STATUS(s); + type = p->l.t.t; if (type == BC_LEX_STR) { s = zbc_parse_string(p, BC_INST_PRINT_POP); - if (s) RETURN_STATUS(s); } else { s = zbc_parse_expr(p, 0, bc_parse_next_print); - if (s) RETURN_STATUS(s); bc_parse_push(p, BC_INST_PRINT_POP); } - - comma = p->l.t.t == BC_LEX_COMMA; - if (comma) { - s = zbc_lex_next(&p->l); - if (s) RETURN_STATUS(s); - } - type = p->l.t.t; + if (s) RETURN_STATUS(s); + if (p->l.t.t != BC_LEX_COMMA) + break; } - if (comma) RETURN_STATUS(bc_error_bad_token()); - - RETURN_STATUS(zbc_lex_next(&p->l)); + RETURN_STATUS(s); } #if ERRORS_ARE_FATAL # define zbc_parse_print(...) (zbc_parse_print(__VA_ARGS__), BC_STATUS_SUCCESS) |