lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 66 insertions, 0 deletions

diff --git a/lib/mlibc/options/posix/include/regex.h b/lib/mlibc/options/posix/include/regex.h
new file mode 100644
index 0000000..b7f0a46
--- /dev/null
+++ b/lib/mlibc/options/posix/include/regex.h
@@ -0,0 +1,66 @@
+#ifndef _REGEX_H
+#define _REGEX_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stddef.h>
+
+typedef ptrdiff_t regoff_t;
+
+typedef struct re_pattern_buffer {
+	size_t re_nsub;
+	void *__opaque, *__padding[4];
+	size_t __nsub2;
+	char __padding2;
+} regex_t;
+
+typedef struct {
+	regoff_t rm_so;
+	regoff_t rm_eo;
+} regmatch_t;
+
+// Flags for regcomp().
+#define REG_EXTENDED 1
+#define REG_ICASE 2
+#define REG_NEWLINE 4
+#define REG_NOSUB 8
+
+// Flags for regexec().
+#define REG_NOTBOL 1
+#define REG_NOTEOL 2
+
+// Errors for regcomp() and regexec().
+#define REG_OK 0
+#define REG_NOMATCH 1
+#define REG_BADPAT 2
+#define REG_ECOLLATE 3
+#define REG_ECTYPE 4
+#define REG_EESCAPE 5
+#define REG_ESUBREG 6
+#define REG_EBRACK 7
+#define REG_EPAREN 8
+#define REG_EBRACE 9
+#define REG_BADBR 10
+#define REG_ERANGE 11
+#define REG_ESPACE 12
+#define REG_BADRPT 13
+
+// Obsolete in POSIX.
+#define REG_ENOSYS -1
+
+#ifndef __MLIBC_ABI_ONLY
+
+int regcomp(regex_t *__restrict, const char *__restrict, int);
+int regexec(const regex_t *__restrict, const char *__restrict, size_t, regmatch_t *__restrict, int);
+size_t regerror(int, const regex_t *__restrict, char *__restrict, size_t);
+void regfree(regex_t *);
+
+#endif /* !__MLIBC_ABI_ONLY */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif