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#+build linux, darwin, netbsd, openbsd, freebsd
package posix
import "core:c"
when ODIN_OS == .Darwin {
foreign import lib "system:System"
} else {
foreign import lib "system:c"
}
// wordexp.h - word-expansion type
foreign lib {
/*
Perform word expansion.
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/wordexp.html ]]
*/
wordexp :: proc(words: cstring, pwordexp: ^wordexp_t, flags: WRDE_Flags) -> WRDE_Errno ---
/*
Free the space allocated during word expansion.
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/wordexp.html ]]
*/
wordfree :: proc(pwordexp: ^wordexp_t) ---
}
WRDE_Flag_Bits :: enum c.int {
// Appends words to those previously generated.
APPEND = log2(WRDE_APPEND),
// Number of null pointers to prepend to we_wordv.
DOOFFS = log2(WRDE_DOOFFS),
// Fail if command substitution is requested.
NOCMD = log2(WRDE_NOCMD),
// The pwordexp argument was passed to a previous successful call to wordexp(),
// and has not been passed to wordfree().
REUSE = log2(WRDE_REUSE),
// Do not redirect stderr to /dev/null.
SHOWERR = log2(WRDE_SHOWERR),
// Report error on attempt to expand an undefined shell variable.
UNDEF = log2(WRDE_UNDEF),
}
WRDE_Flags :: bit_set[WRDE_Flag_Bits; c.int]
WRDE_Errno :: enum c.int {
OK = 0,
// One of the unquoted characters- <newline>, '|', '&', ';', '<', '>', '(', ')', '{', '}' -
// appears in words in an inappropriate context.
BADCHAR = WRDE_BADCHAR,
// Reference to undefined shell variable when WRDE_UNDEF is set in flags.
BADVAL = WRDE_BADVAL,
// Command substitution requested when WRDE_NOCMD was set in flags.
CMDSUB = WRDE_CMDSUB,
// Attempt to allocate memory failed.
NOSPACE = WRDE_NOSPACE,
// Shell syntax error, such as unbalanced parentheses or an unterminated string.
SYNTAX = WRDE_SYNTAX,
}
when ODIN_OS == .Darwin {
wordexp_t :: struct {
we_wordc: c.size_t, /* [PSX] count of words matched by words */
we_wordv: [^]cstring, /* [PSX] pointer to list of expanded words */
we_offs: c.size_t, /* [PSX] slots to reserve at the beginning of we_wordv */
}
WRDE_APPEND :: 0x01
WRDE_DOOFFS :: 0x02
WRDE_NOCMD :: 0x04
WRDE_REUSE :: 0x08
WRDE_SHOWERR :: 0x10
WRDE_UNDEF :: 0x20
WRDE_BADCHAR :: 1
WRDE_BADVAL :: 2
WRDE_CMDSUB :: 3
WRDE_NOSPACE :: 4
WRDE_SYNTAX :: 6
} else when ODIN_OS == .FreeBSD || ODIN_OS == .NetBSD || ODIN_OS == .OpenBSD {
wordexp_t :: struct {
we_wordc: c.size_t, /* [PSX] count of words matched by words */
we_wordv: [^]cstring, /* [PSX] pointer to list of expanded words */
we_offs: c.size_t, /* [PSX] slots to reserve at the beginning of we_wordv */
we_strings: [^]byte, /* storage for wordv strings */
we_nbytes: c.size_t, /* size of we_strings */
}
WRDE_APPEND :: 0x01
WRDE_DOOFFS :: 0x02
WRDE_NOCMD :: 0x04
WRDE_REUSE :: 0x08
WRDE_SHOWERR :: 0x10
WRDE_UNDEF :: 0x20
WRDE_BADCHAR :: 1
WRDE_BADVAL :: 2
WRDE_CMDSUB :: 3
WRDE_NOSPACE :: 4
WRDE_SYNTAX :: 6
} else when ODIN_OS == .Linux {
wordexp_t :: struct {
we_wordc: c.size_t, /* [PSX] count of words matched by words */
we_wordv: [^]cstring, /* [PSX] pointer to list of expanded words */
we_offs: c.size_t, /* [PSX] slots to reserve at the beginning of we_wordv */
}
WRDE_DOOFFS :: 1 << 0 /* Insert PWORDEXP->we_offs NULLs. */
WRDE_APPEND :: 1 << 1 /* Append to results of a previous call. */
WRDE_NOCMD :: 1 << 2 /* Don't do command substitution. */
WRDE_REUSE :: 1 << 3 /* Reuse storage in PWORDEXP. */
WRDE_SHOWERR :: 1 << 4 /* Don't redirect stderr to /dev/null. */
WRDE_UNDEF :: 1 << 5 /* Error for expanding undefined variables. */
WRDE_NOSPACE :: 1
WRDE_BADCHAR :: 2
WRDE_BADVAL :: 3
WRDE_CMDSUB :: 4
WRDE_SYNTAX :: 5
}
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