304 Commits

Author	SHA1	Message	Date
Denys Vlasenko	2f7352b4f5	bc: comment out code which appears to be never reached ... function old new delta zbc_lex_next 1587 1568 -19 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-26 18:59:42 +01:00
Denys Vlasenko	b1b7996a2a	bc: remove all logic for multi-line buffering ... function old new delta zbc_vm_process 865 874 +9 zbc_parse_text_init 51 38 -13 bc_read_line 394 345 -49 peek_inbuf 292 69 -223 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/3 up/down: 9/-285) Total: -276 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-26 18:46:03 +01:00
Denys Vlasenko	7d32e25bf3	bc: prepare for char-by-char input handling ... function old new delta peek_inbuf - 292 +292 parse_lex_by_checking_eq_sign - 26 +26 eat_inbuf - 22 +22 zbc_vm_execute_FILE 52 61 +9 bc_lex_lineComment 29 30 +1 zbc_lex_number 174 172 -2 bc_vm_run 104 99 -5 zbc_num_divmod 156 150 -6 bc_lex_file 24 - -24 bc_lex_assign 26 - -26 zbc_lex_next 1982 1587 -395 ------------------------------------------------------------------------------ (add/remove: 3/2 grow/shrink: 2/4 up/down: 350/-458) Total: -108 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-26 18:32:43 +01:00
Denys Vlasenko	63ad799384	bc: fix handling of comment/string interactions while buffering input ... function old new delta zbc_lex_next 1965 1982 +17 zbc_num_divmod 150 156 +6 bc_read_line 411 394 -17 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 23/-17) Total: 6 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-26 12:23:05 +01:00
Denys Vlasenko	94576d2b97	bc: fix interactive handling of comments in strings and quotes in comments ... function old new delta zbc_lex_next 1965 1979 +14 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 23:45:57 +01:00
Denys Vlasenko	c192b0442b	bc: simplify input pointer manipulation while lexing ... function old new delta bc_lex_name 70 68 -2 zbc_lex_number 177 174 -3 bc_vm_init 679 676 -3 bc_lex_whitespace 42 39 -3 zbc_parse_text_init 55 51 -4 bc_lex_lineComment 37 29 -8 bc_lex_assign 34 26 -8 zbc_lex_next 2039 1965 -74 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/8 up/down: 0/-105) Total: -105 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 23:15:59 +01:00
Denys Vlasenko	ecb62edd47	bc: fold struct BcLex into BcParse ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 22:32:41 +01:00
Denys Vlasenko	6e6182342e	bc: move BcLex::lex member to be the first in struct globals ... function old new delta zbc_program_exec 3967 4003 +36 zdc_program_execStr 501 520 +19 zbc_posix_error_fmt 58 62 +4 bc_vm_init 675 679 +4 bc_read_line 407 411 +4 bc_error_fmt 36 40 +4 zdc_parse_register 45 44 -1 zdc_parse_exprs_until_eof 28 27 -1 zbc_parse_text_init 56 55 -1 zbc_parse_stmt_allow_NLINE_before 55 54 -1 zbc_lex_skip_if_at_NLINE 19 18 -1 zbc_lex_number 178 177 -1 bc_parse_create 97 96 -1 bc_lex_whitespace 43 42 -1 bc_lex_name 71 70 -1 bc_lex_lineComment 38 37 -1 bc_lex_assign 35 34 -1 zdc_parse_expr 476 473 -3 bc_verror_msg 93 90 -3 bc_lex_file 27 24 -3 zbc_parse_name 453 448 -5 bc_parse_expr_empty_ok 1776 1764 -12 zbc_vm_process 878 865 -13 zbc_parse_stmt_possibly_auto 1451 1425 -26 zbc_lex_next 2075 2039 -36 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 6/19 up/down: 71/-112) Total: -41 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 22:20:14 +01:00
Denys Vlasenko	0b0e8d0509	bc: rename some members and macros, no code changes ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 21:44:10 +01:00
Denys Vlasenko	3f8752c33f	bc: shorten error messages ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 21:28:25 +01:00
Gavin Howard	fa495ce498	bc: make it clear that the code is adapted ... Signed-off-by: Gavin Howard <yzena.tech@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 20:53:15 +01:00
Denys Vlasenko	a2e62e3e50	bc: stop passing a pointer to G.prs down the call chain ... function old new delta rewrite_label_to_current 19 26 +7 bc_lex_assign 28 35 +7 zbc_lex_skip_if_at_NLINE 14 19 +5 bc_parse_push 11 16 +5 bc_parse_operator 147 152 +5 bc_parse_create 92 97 +5 bc_lex_whitespace 38 43 +5 bc_lex_name 66 71 +5 bc_lex_lineComment 33 38 +5 zbc_lex_number 174 178 +4 zbc_parse_text_init 53 56 +3 zdc_parse_register 43 45 +2 zdc_parse_exprs_until_eof 26 28 +2 bc_parse_free 38 40 +2 bc_lex_file 28 27 -1 zbc_parse_pushSTR 65 63 -2 bc_parse_expr_empty_ok 1778 1776 -2 zbc_vm_execute_FILE 55 52 -3 bc_vm_init 678 675 -3 zbc_parse_stmt_allow_NLINE_before 59 55 -4 bc_parse_pushNUM 80 74 -6 bc_parse_pushJUMP_ZERO 27 21 -6 bc_parse_pushJUMP 27 21 -6 bc_vm_run 112 104 -8 bc_parse_pushName 39 31 -8 bc_parse_pushIndex 60 52 -8 zbc_parse_name 468 453 -15 zdc_program_execStr 524 501 -23 zdc_parse_mem 93 70 -23 zbc_program_exec 4003 3967 -36 zdc_parse_expr 518 476 -42 zbc_vm_process 923 878 -45 zbc_lex_next 2158 2070 -88 zbc_parse_stmt_possibly_auto 1560 1451 -109 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 14/20 up/down: 62/-438) Total: -376 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 20:40:55 +01:00
Denys Vlasenko	1fbe35a7d8	bc: make zbc_program_read() and zdc_program_execStr() use G.prs ... function old new delta zbc_program_print 656 683 +27 zbc_program_exec 3976 4003 +27 zdc_program_execStr 512 524 +12 bc_num_printNewline 45 54 +9 bc_num_printHex 61 67 +6 bc_num_printDigits 131 137 +6 dc_num_printChar 21 24 +3 bc_vm_init 675 678 +3 zbc_program_assign 424 426 +2 bc_read_line 410 407 -3 bc_verror_msg 99 93 -6 zbc_lex_next 2167 2158 -9 zbc_vm_execute_FILE 67 55 -12 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 9/4 up/down: 95/-30) Total: 65 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 19:38:13 +01:00
Denys Vlasenko	53e569c06b	bc: fix interactive read() ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 19:37:23 +01:00
Denys Vlasenko	2638454464	bc: add code to detect errors like "print 1 print 2" ... function old new delta zbc_vm_process 831 925 +94 zbc_program_exec 3964 3976 +12 zdc_program_execStr 506 512 +6 zbc_lex_next 2161 2167 +6 zbc_program_assign 419 424 +5 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 5/0 up/down: 123/0) Total: 123 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 18:37:52 +01:00
Denys Vlasenko	5fa74b9efc	bc: allow {break} and {continue} (allow RBRACE to terminate them) ... function old new delta zbc_parse_stmt_possibly_auto 1599 1560 -39 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 17:07:51 +01:00
Denys Vlasenko	d4b721cc8b	bc: shrink parsing code a bit more, disallow "auto a b c" (without commas) ... function old new delta bc_parse_expr_empty_ok 1791 1785 -6 zbc_parse_stmt_possibly_auto 1675 1599 -76 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-82) Total: -82 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 16:39:01 +01:00
Denys Vlasenko	73b3ebc0e1	bc: simplify bc_parse_expr_empty_ok() ... function old new delta bc_parse_expr_empty_ok 1810 1791 -19 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 01:43:52 +01:00
Denys Vlasenko	d0238d83f0	bc: simplify bc_parse_expr_empty_ok() ... function old new delta bc_parse_expr_empty_ok 1819 1810 -9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 01:21:16 +01:00
Denys Vlasenko	bb116031a0	bc: simplify bc_parse_expr_empty_ok() ... function old new delta bc_parse_expr_empty_ok 1846 1819 -27 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-25 01:16:37 +01:00
Denys Vlasenko	d897c9aca6	bc: BC_RESULT_ONE is bc-specific ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 23:41:31 +01:00
Denys Vlasenko	0c45bb22a0	bc: partially deinline BC_PARSE_LEAF() macro ... function old new delta ok_in_expr - 30 +30 bc_parse_expr_empty_ok 1972 1846 -126 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/1 up/down: 30/-126) Total: -96 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 23:22:40 +01:00
Denys Vlasenko	a17d95d0d0	bc: rename lexer variables, use smallints where appropriate ... function old new delta bc_parse_expr_empty_ok 1966 1972 +6 zdc_parse_expr 514 518 +4 zbc_lex_number 177 174 -3 dc_num_printChar 24 21 -3 bc_lex_whitespace 41 38 -3 bc_lex_name 69 66 -3 bc_lex_lineComment 36 33 -3 bc_lex_assign 31 28 -3 zbc_parse_name 472 468 -4 zbc_vm_process 836 831 -5 zdc_program_execStr 512 506 -6 zbc_parse_text_init 59 53 -6 bc_num_printNewline 51 45 -6 bc_num_printHex 67 61 -6 bc_num_printDigits 137 131 -6 zbc_program_assign 426 419 -7 zbc_parse_stmt_possibly_auto 1682 1675 -7 zbc_program_exec 3977 3964 -13 zbc_program_print 683 656 -27 zbc_lex_next 2233 2161 -72 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/18 up/down: 10/-183) Total: -173 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 22:55:54 +01:00
Denys Vlasenko	d279d809ac	bc: fix "bc -s" only warning on "define f()<newline>", not exiting ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 18:28:56 +01:00
Denys Vlasenko	79587cb442	bc: POSIX error/warn functions can be 'z' functions too ... In non-interactive config, they either return 'success', or do not return. function old new delta zbc_posix_error_fmt 41 39 -2 bc_parse_expr_empty_ok 1751 1744 -7 zbc_parse_stmt_possibly_auto 1322 1314 -8 ------------------------------------------------------------------------------ (add/remove: 5/5 grow/shrink: 0/2 up/down: 118/-135) Total: -17 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 18:11:41 +01:00
Denys Vlasenko	65b6fe09c4	bc: remove unnecessary NULL initializers ... function old new delta zbc_program_assign 442 426 -16 zbc_program_exec 4043 3977 -66 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-82) Total: -82 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 17:21:31 +01:00
Denys Vlasenko	a5bf53e4bb	bc: move relational LEXs before math LEXs - shorten dc_LEX_to_INST[] ... function old new delta dc_LEX_to_INST 48 42 -6 zdc_parse_expr 523 514 -9 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-15) Total: -15 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 17:07:20 +01:00
Denys Vlasenko	4accb6bba8	bc: offset dc_LEX_to_INST[] start ... function old new delta zdc_parse_expr 516 523 +7 dc_LEX_to_INST 56 48 -8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 7/-8) Total: -1 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 15:29:33 +01:00
Denys Vlasenko	23ea0734e1	bc: rename BC_LEX_NLINE/WHITESPACE/STR/NAME/NUMBER to XC_LEX_ ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 15:05:49 +01:00
Denys Vlasenko	9d9c97efbd	bc: separate many bc and dc LEX constants ... function old new delta zdc_parse_expr 510 516 +6 bc_parse_expr_empty_ok 1963 1966 +3 dc_LEX_to_INST 83 56 -27 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 9/-27) Total: -18 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 15:00:56 +01:00
Denys Vlasenko	69560f42da	bc: rename several BC_LEX_OPs to XC_LEX_OPs. ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 14:14:23 +01:00
Denys Vlasenko	abf6cf6765	bc: move BC_LEX_OP_INC/DEC to the end of operation LEX constants ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 13:20:57 +01:00
Denys Vlasenko	7d9be0bc6d	bc: rename BC_LEXs to XC_LEXs for common constants, and to DC_LEXs for dc-specific ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 12:25:20 +01:00
Denys Vlasenko	2097ac8d9e	bc: move functions/macros around, no code changes ... Order now is: enums/structures/defines, utility/common functions, parsing, execution, main loop, main() Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 05:00:36 +01:00
Denys Vlasenko	a7732d1120	bc: rename common INST constants to XC_, dc-specific ones to DC_ ... This will assist in disentangling dc and bc LEX constants Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 04:26:07 +01:00
Denys Vlasenko	81293c8af0	dc: without -x, do not parse extended regs: 's p' means: store to ' ' reg, print ... function old new delta zbc_lex_next 2240 2233 -7 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-7) Total: -7 bytes text data bss dec hex filename 981437 485 7296 989218 f1822 busybox_old 981412 485 7296 989193 f1809 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 02:01:32 +01:00
Denys Vlasenko	73b2c60825	bc: fix incorrect bit in BC_PARSE_EXPRS_BITS: 'limits' is not allowed ... Alsl, move and rename dc_lex_tokens[] to dc_char_to_LEX[] Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 01:04:21 +01:00
Denys Vlasenko	ad0bd381e9	bc: for "dc only" remove handling of LAST, move OBASE enums up to IBASE ... function old new delta dc_LEX_to_INST - 82 +82 bc_parse_pushNUM - 62 +62 zbc_program_num 981 978 -3 bc_result_free 46 43 -3 zbc_program_binOpPrep 305 300 -5 static.msg 24 12 -12 zbc_program_exec 4013 3994 -19 zdc_parse_expr 583 507 -76 dc_parse_insts 83 - -83 ------------------------------------------------------------------------------ (add/remove: 2/1 grow/shrink: 0/6 up/down: 144/-201) Total: -57 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-24 00:50:32 +01:00
Denys Vlasenko	9471bd4660	bc: fix empty lines in dc generating "bad token" message ... function old new delta zdc_program_asciify - 370 +370 zbc_program_pushArray - 147 +147 zbc_vm_process 824 828 +4 zbc_program_exec 4182 4046 -136 zdc_program_printStream 146 - -146 zbc_program_read 268 - -268 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 1/1 up/down: 521/-550) Total: -29 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-23 00:13:15 +01:00
Denys Vlasenko	01eb5e9da1	bc: shrink modular exponentiation code ... function old new delta zdc_program_modexp 721 694 -27 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-22 23:59:21 +01:00
Denys Vlasenko	1acac7f9c5	bc: do not yet allow 2^2.1 ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-22 23:14:48 +01:00
Denys Vlasenko	a9f59db809	bc: avoid having to twiddle b->neg in zbc_num_p() ... function old new delta zbc_num_ulong_abs - 70 +70 zbc_num_p 424 413 -11 zbc_num_ulong 81 21 -60 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/2 up/down: 70/-71) Total: -1 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-22 21:52:30 +01:00
Denys Vlasenko	2ea8ddf8c2	bc: do not disallow powers to N.0000 degree - it's even shorter code ... function old new delta zbc_num_p 440 424 -16 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-22 21:45:18 +01:00
Denys Vlasenko	1557b76edd	bc: shrink zbc_num_ulong() ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-22 21:37:46 +01:00
Denys Vlasenko	ec74a9c145	bc: make long-running dc drop data it does not need (when it can) ... function old new delta zbc_vm_process 765 824 +59 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-22 19:23:46 +01:00
Denys Vlasenko	5cf0b2d466	bc: unbreak "z function" macro machinery ... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-22 18:24:19 +01:00
Denys Vlasenko	badf683b0a	dc: unbreak interactive mode - was trying to get next tokens instead of executing ... function old new delta zbc_program_read - 268 +268 zdc_program_printStream - 146 +146 zbc_program_exec 4046 4182 +136 zdc_program_execStr 472 512 +40 zdc_parse_exprs_until_eof - 26 +26 zbc_vm_process 740 765 +25 zbc_lex_next 2225 2240 +15 zdc_parse_expr 569 535 -34 zbc_program_pushArray 147 - -147 zdc_program_asciify 370 - -370 ------------------------------------------------------------------------------ (add/remove: 3/2 grow/shrink: 4/1 up/down: 656/-551) Total: 105 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-22 18:10:50 +01:00
Denys Vlasenko	5daa1a0adf	bc: move zbc_lex_next() out of zdc_parse_string() and zdc_parse_mem() ... function old new delta zdc_parse_mem 99 93 -6 zdc_parse_expr 586 569 -17 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-23) Total: -23 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-22 16:41:23 +01:00
Denys Vlasenko	7c1c9dc86b	bc: shorten sanity-check code ... function old new delta zbc_vm_process 745 740 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-22 14:18:47 +01:00
Denys Vlasenko	88fcd5cc6c	bc: fold single-callsite functions into callers, commonalize code ... function old new delta zbc_vm_process 699 745 +46 zbc_parse_stmt_possibly_auto 1689 1682 -7 bc_parse_reset 113 - -113 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/1 up/down: 46/-120) Total: -74 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>	2018-12-22 06:00:25 +01:00