bc: rename config options
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
@@ -27,19 +27,6 @@
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//config: easier.
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//config: 5) "read()" accepts expressions, not only numeric literals.
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//config:
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//config: Options:
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//config: -i --interactive force interactive mode
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//config: -q --quiet don't print version and copyright
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//config: -s --standard error if any non-POSIX extensions are used
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//config: -w --warn warn if any non-POSIX extensions are used
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//config: -l --mathlib use predefined math routines:
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//config: s(expr) sine in radians
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//config: c(expr) cosine in radians
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//config: a(expr) arctangent, returning radians
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//config: l(expr) natural log
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//config: e(expr) raises e to the power of expr
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//config: j(n, x) Bessel function of integer order n of x
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//config:
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//config:config DC
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//config: bool "dc (36 kb)"
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//config: default y
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@@ -60,31 +47,32 @@
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//config: whitespace where a register should be, it skips the whitespace.
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//config: If the character following is not a lowercase letter, an error
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//config: is issued. Otherwise, the register name is parsed by the
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//config: following regex:
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//config: [a-z][a-z0-9_]*
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//config: following regex: [a-z][a-z0-9_]*
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//config: This generally means that register names will be surrounded by
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//config: whitespace. Examples:
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//config: l idx s temp L index S temp2 < do_thing
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//config: Also note that, like the FreeBSD dc, extended registers are not
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//config: allowed unless the "-x" option is given.
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//config:
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//config:config FEATURE_DC_SMALL
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//config: bool "Minimal dc implementation (4.2 kb), not using bc code base"
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//config:if BC || DC # for menuconfig indenting
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//config:
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//config:config FEATURE_DC_BIG
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//config: bool "Use bc code base for dc (larger, more features)"
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//config: depends on DC && !BC
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//config: default n
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//config: default y
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//config:
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//config:config FEATURE_DC_LIBM
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//config: bool "Enable power and exp functions (requires libm)"
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//config: default y
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//config: depends on FEATURE_DC_SMALL
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//config: depends on DC && !BC && !FEATURE_DC_BIG
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//config: help
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//config: Enable power and exp functions.
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//config: NOTE: This will require libm to be present for linking.
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//config:
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//config:config FEATURE_BC_SIGNALS
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//config:config FEATURE_BC_INTERACTIVE
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//config: bool "Interactive mode (+4kb)"
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//config: default y
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//config: depends on (BC || DC) && !FEATURE_DC_SMALL
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//config: depends on BC || (DC && FEATURE_DC_BIG)
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//config: help
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//config: Enable interactive mode: when started on a tty,
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//config: ^C interrupts execution and returns to command line,
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@@ -99,9 +87,9 @@
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//config:config FEATURE_BC_LONG_OPTIONS
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//config: bool "Enable bc/dc long options"
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//config: default y
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//config: depends on (BC || DC) && !FEATURE_DC_SMALL
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//config: help
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//config: Enable long options for bc and dc.
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//config: depends on BC || (DC && FEATURE_DC_BIG)
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//config:
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//config:endif
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//applet:IF_BC(APPLET(bc, BB_DIR_USR_BIN, BB_SUID_DROP))
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//applet:IF_DC(APPLET(dc, BB_DIR_USR_BIN, BB_SUID_DROP))
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@@ -137,11 +125,11 @@
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//usage: "obase = A\n"
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//usage:
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//usage:#define dc_trivial_usage
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//usage: IF_NOT_FEATURE_DC_SMALL("[-x] ")"[-eSCRIPT]... [-fFILE]... [FILE]..."
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//usage: IF_FEATURE_DC_BIG("[-x] ")"[-eSCRIPT]... [-fFILE]... [FILE]..."
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//usage:
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//usage:#define dc_full_usage "\n"
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//usage: "\nTiny RPN calculator. Operations:"
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//usage: "\n+, -, *, /, %, ~, ^," IF_NOT_FEATURE_DC_SMALL(" |,")
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//usage: "\n+, -, *, /, %, ~, ^," IF_FEATURE_DC_BIG(" |,")
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//usage: "\np - print top of the stack without popping"
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//usage: "\nf - print entire stack"
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//usage: "\nk - pop the value and set the precision"
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@@ -164,7 +152,7 @@
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#include "libbb.h"
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#include "common_bufsiz.h"
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#if ENABLE_FEATURE_DC_SMALL
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#if !ENABLE_BC && !ENABLE_FEATURE_DC_BIG
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# include "dc.c"
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#else
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@@ -765,7 +753,7 @@ struct globals {
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BcVec input_buffer;
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IF_FEATURE_BC_SIGNALS(smallint ttyin;)
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IF_FEATURE_BC_INTERACTIVE(smallint ttyin;)
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IF_FEATURE_CLEAN_UP(smallint exiting;)
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BcProgram prog;
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@@ -788,7 +776,7 @@ struct globals {
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#define G_posix (ENABLE_BC && (option_mask32 & BC_FLAG_S))
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#define G_warn (ENABLE_BC && (option_mask32 & BC_FLAG_W))
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#define G_exreg (ENABLE_DC && (option_mask32 & DC_FLAG_X))
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#if ENABLE_FEATURE_BC_SIGNALS
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#if ENABLE_FEATURE_BC_INTERACTIVE
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# define G_interrupt bb_got_signal
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# define G_ttyin G.ttyin
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#else
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@@ -876,7 +864,7 @@ struct globals {
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// To make code more readable, each such function has a "z"
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// ("always returning zero") prefix, i.e. zbc_foo or zdc_foo.
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//
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#if ENABLE_FEATURE_BC_SIGNALS || ENABLE_FEATURE_CLEAN_UP
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#if ENABLE_FEATURE_BC_INTERACTIVE || ENABLE_FEATURE_CLEAN_UP
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# define ERRORS_ARE_FATAL 0
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# define ERRORFUNC /*nothing*/
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# define IF_ERROR_RETURN_POSSIBLE(a) a
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@@ -906,7 +894,7 @@ static void fflush_and_check(void)
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#if ENABLE_FEATURE_CLEAN_UP
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#define QUIT_OR_RETURN_TO_MAIN \
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do { \
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IF_FEATURE_BC_SIGNALS(G_ttyin = 0;) /* do not loop in main loop anymore */ \
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IF_FEATURE_BC_INTERACTIVE(G_ttyin = 0;) /* do not loop in main loop anymore */ \
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G_exiting = 1; \
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return BC_STATUS_FAILURE; \
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} while (0)
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@@ -1834,7 +1822,7 @@ static FAST_FUNC BC_STATUS zbc_num_k(BcNum *restrict a, BcNum *restrict b,
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c->num[i + j] += (BcDig) carry;
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len = BC_MAX(len, i + j + !!carry);
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#if ENABLE_FEATURE_BC_SIGNALS
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#if ENABLE_FEATURE_BC_INTERACTIVE
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// a=2^1000000
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// a*a <- without check below, this will not be interruptible
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if (G_interrupt) return BC_STATUS_FAILURE;
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@@ -2001,7 +1989,7 @@ static FAST_FUNC BC_STATUS zbc_num_d(BcNum *a, BcNum *b, BcNum *restrict c, size
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for (q = 0; n[len] != 0 || bc_num_compare(n, b->num, len) >= 0; ++q)
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bc_num_subArrays(n, b->num, len);
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c->num[i] = q;
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#if ENABLE_FEATURE_BC_SIGNALS
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#if ENABLE_FEATURE_BC_INTERACTIVE
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// a=2^100000
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// scale=40000
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// 1/a <- without check below, this will not be interruptible
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@@ -2486,7 +2474,7 @@ static void xc_read_line(BcVec *vec, FILE *fp)
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bc_vec_pop_all(vec);
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fflush_and_check();
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#if ENABLE_FEATURE_BC_SIGNALS
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#if ENABLE_FEATURE_BC_INTERACTIVE
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if (G_interrupt) { // ^C was pressed
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intr:
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if (fp != stdin) {
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@@ -2533,7 +2521,7 @@ static void xc_read_line(BcVec *vec, FILE *fp)
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bool bad_chars = 0;
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do {
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#if ENABLE_FEATURE_BC_SIGNALS
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#if ENABLE_FEATURE_BC_INTERACTIVE
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if (G_interrupt) {
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// ^C was pressed: ignore entire line, get another one
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bc_vec_pop_all(vec);
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@@ -7223,7 +7211,7 @@ static int xc_vm_init(const char *env_len)
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//TODO: in GNU bc, the check is (isatty(0) && isatty(1)),
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//-i option unconditionally enables this regardless of isatty():
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if (isatty(0)) {
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#if ENABLE_FEATURE_BC_SIGNALS
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#if ENABLE_FEATURE_BC_INTERACTIVE
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G_ttyin = 1;
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// With SA_RESTART, most system calls will restart
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// (IOW: they won't fail with EINTR).
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@@ -7342,4 +7330,5 @@ int dc_main(int argc UNUSED_PARAM, char **argv)
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}
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#endif
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#endif // not DC_SMALL
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#endif // DC_BIG
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