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2018-12-20bc: fix keyword matching to not think "ifz" is the "if" keywordDenys Vlasenko
function old new delta zbc_lex_next 2224 2225 +1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-18bc: fix "echo -n '#foo' | bc" not eating last 'o'Denys Vlasenko
function old new delta zdc_parse_expr 656 653 -3 bc_lex_lineComment 39 36 -3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-6) Total: -6 bytes text data bss dec hex filename 981424 485 7296 989205 f1815 busybox_old 981418 485 7296 989199 f180f busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-17bc: remove "error after expression parsing" checkDenys Vlasenko
It is misplaced: caller knows better what can or cannot follow the expression. Sometimes even caller's caller: "if (1) return a+b else..." - parser of "return" does not know that "else" after it is valid, parser of stmt does not know it either, - only parser of "if" knows it! The removed code balked on e.g. "{ print 1 }" statement. This does not break any valid programs, but starts accepting some invalid ones, e.g. "print 1 print 2" would work. function old new delta zcommon_parse_expr 40 32 -8 zbc_parse_name 509 494 -15 zbc_parse_stmt_possibly_auto 1678 1638 -40 bc_parse_expr_empty_ok 2025 1977 -48 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-111) Total: -111 bytes text data bss dec hex filename 981599 485 7296 989380 f18c4 busybox_old 981488 485 7296 989269 f1855 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-16bc: store only index in p->exits, it's the only thing used thereDenys Vlasenko
function old new delta zbc_parse_stmt_possibly_auto 1967 1964 -3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3) Total: -3 bytes text data bss dec hex filename 981937 485 7296 989718 f1a16 busybox_old 981934 485 7296 989715 f1a13 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-16bc: remove redundant JUMP generation when parsing 'while'Denys Vlasenko
function old new delta zbc_parse_stmt_possibly_auto 2065 2025 -40 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-40) Total: -40 bytes text data bss dec hex filename 982035 485 7296 989816 f1a78 busybox_old 981995 485 7296 989776 f1a50 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-16bc: simplify use of "ip" in loop parsing functionsDenys Vlasenko
function old new delta zbc_parse_stmt_possibly_auto 2106 2065 -41 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-41) Total: -41 bytes text data bss dec hex filename 982076 485 7296 989857 f1aa1 busybox_old 982035 485 7296 989816 f1a78 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-16bc: fix "print 1,2,3" parsingDenys Vlasenko
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>
2018-12-16bc: fold zbc_parse_else() into its only callerDenys Vlasenko
While at it, allow newline between "else" and its body Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-16bc: fixes for multi-line if/while/forDenys Vlasenko
function old new delta zbc_vm_process 561 589 +28 zbc_lex_next_and_skip_NLINE - 22 +22 zbc_parse_stmt_possibly_auto 2232 2253 +21 zbc_lex_skip_if_at_NLINE - 14 +14 zbc_lex_number 192 200 +8 zbc_num_divmod 150 156 +6 bc_vm_run 134 139 +5 bc_vm_init 757 760 +3 bc_num_printNewline 51 54 +3 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 7/0 up/down: 110/0) Total: 110 bytes text data bss dec hex filename 982138 485 7296 989919 f1adf busybox_old 982275 485 7296 990056 f1b68 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-16bc: fix handling of 'return' not in functions, and 'define f()<newline>{...}'Denys Vlasenko
function old new delta zbc_vm_process 561 597 +36 zbc_parse_stmt_possibly_auto 2232 2253 +21 zbc_lex_number 192 200 +8 zbc_num_divmod 150 156 +6 bc_vm_run 134 139 +5 bc_vm_init 757 760 +3 bc_num_printNewline 51 54 +3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 7/0 up/down: 82/0) Total: 82 bytes text data bss dec hex filename 982138 485 7296 989919 f1adf busybox_old 982247 485 7296 990028 f1b4c busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-16bc: partially rewrite parser, tests pass, ^C might be broken nowDenys Vlasenko
The entire control construct (if/while/for/funcdef) or {} block is "eaten" by the corresponding parsing function, instead of maintaining special "block flag stack" with magic bits in it, and returning to main input loop after every inner statement (every input line, essentially). This required moving line input deep into lexer - now zbc_lex_next() triggers more reading when needed. "block flag stack" is gone. Correctness of ^C handling wasn't checked, might need fixing now. if/else syntax is changed to match GNU bc: "else" can not be on the next line (the rationale is that "if (1) 2" statement in interactive mode should execute and print 2 instead of waiting for possible "else ..." line). This change fixes the following examples: if (1) if (1) 1 else 2 else 3 if (0) 1 else if (1) 2 define w() { auto z; return 1; } function old new delta zbc_parse_stmt_possibly_auto - 2232 +2232 zbc_vm_process 89 561 +472 zbc_lex_next 1982 2296 +314 bc_vm_init 749 757 +8 bc_parse_expr_empty_ok 2016 2021 +5 bc_num_printNewline 54 51 -3 zbc_program_read 289 280 -9 bc_parse_free 47 38 -9 bc_parse_reset 126 113 -13 bc_parse_create 108 92 -16 bc_parse_push_block_flag 47 - -47 bc_parse_noElse 48 - -48 zbc_parse_text_init 113 59 -54 zbc_parse_body 121 - -121 zbc_parse_else 125 - -125 zbc_parse_endBody 254 - -254 bc_vm_run 421 134 -287 zbc_parse_auto 290 - -290 zcommon_parse 476 - -476 zbc_parse_stmt 1682 7 -1675 ------------------------------------------------------------------------------ (add/remove: 1/7 grow/shrink: 4/8 up/down: 3031/-3427) Total: -396 bytes text data bss dec hex filename 982586 485 7296 990367 f1c9f busybox_old 982138 485 7296 989919 f1adf busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-15bc: lexer debugging, added some failing test casesDenys Vlasenko
function old new delta bc_parse_push_block_flag - 47 +47 zbc_parse_body 107 121 +14 zbc_num_divmod 156 150 -6 zbc_lex_number 200 192 -8 zbc_parse_endBody 264 254 -10 bc_parse_startBody 47 - -47 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 1/3 up/down: 61/-71) Total: -10 bytes text data bss dec hex filename 982596 485 7296 990377 f1ca9 busybox_old 982586 485 7296 990367 f1c9f busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-13bc: fix another thinkoDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-13bc: fix comment handlingDenys Vlasenko
function old new delta bc_vm_run 514 513 -1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-12testsuite: add bc and dc testsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
generated by cgit v1.1 at 2024-11-07 07:47:58 +0000