From 5d18f6be90a940f80c3b7238dc7a8b42a41f55bd Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Sun, 16 Dec 2018 21:08:30 +0100 Subject: [PATCH] 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 --- miscutils/bc.c | 31 ++++++++----------------------- testsuite/bc.tests | 5 +++++ 2 files changed, 13 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) diff --git a/testsuite/bc.tests b/testsuite/bc.tests index 36baeea89..21b26008f 100755 --- a/testsuite/bc.tests +++ b/testsuite/bc.tests @@ -71,6 +71,11 @@ testing "bc while(cond)" \ "8\n7\n6\n5\n4\n3\n2\n1\n9\n" \ "" "i=9;while(--i)\ni\n9" +testing "bc print 1,2,3" \ + "bc" \ + "123" \ + "" "print 1,2,3" + tar xJf bc_large.tar.xz for f in bc*.bc; do