1 files changed, 0 insertions, 175 deletions
diff --git a/src/user/lib/string.c b/src/user/lib/string.c
deleted file mode 100644
index fa9c0ca..0000000
--- a/src/user/lib/string.c
+++ /dev/null
@@ -1,175 +0,0 @@
-#include <ctype.h>
-#include <errno.h>
-#include <string.h>
-#include <strings.h>
-
-long strtol(const char *restrict s, char **restrict end, int base) {
-	long res = 0;
-	int sign = 1;
-
-	while (isspace(*s)) s++;
-
-	if (*s == '+') {
-		s++;
-	} else if (*s == '-') {
-		s++;
-		sign = -1;
-	}
-
-	if (base == 0) {
-		if (*s == '0') {
-			s++;
-			if (*s == 'x' || *s == 'X') {
-				s++;
-				base = 16;
-			} else {
-				base = 8;
-			}
-		} else {
-			base = 10;
-		}
-	}
-
-	for (;;) {
-		unsigned char digit = *s;
-		if      ('0' <= digit && digit <= '9') digit -= '0';
-		else if ('a' <= digit && digit <= 'z') digit -= 'a' - 10;
-		else if ('A' <= digit && digit <= 'Z') digit -= 'A' - 10;
-		else break;
-
-		if (digit >= base) break;
-		// TODO overflow check
-		res *= base;
-		res += digit;
-
-		s++;
-	}
-	if (end) *end = (void*)s;
-	return res * sign;
-}
-
-#include <user/lib/panic.h>
-double strtod(const char *restrict s, char **restrict end) {
-	(void)s; (void)end;
-	__libc_panic("unimplemented");
-}
-
-char *strchr(const char *s, int c) {
-	for (; *s; s++) {
-		if (*s == c) return (char *)s;
-	}
-	return NULL;
-}
-
-char *strrchr(const char *s, int c) {
-	for (int i = strlen(s) + 1; i >= 0; i--) {
-		if (s[i] == c) return (char *)s + i;
-	}
-	return NULL;
-}
-
-size_t strspn(const char *s, const char *accept) {
-	size_t l = 0;
-	for (; s[l] && strchr(accept, s[l]); l++);
-	return l;
-}
-
-size_t strcspn(const char *s, const char *reject) {
-	size_t l = 0;
-	for (; s[l] && !strchr(reject, s[l]); l++);
-	return l;
-}
-
-char *strpbrk(const char *s1, const char *s2) {
-	for (; *s1; s1++) {
-		if (strchr(s2, *s1)) return (char*)s1;
-	}
-	return NULL;
-}
-
-char *strtok(char *restrict s, const char *restrict sep) {
-	static char *state;
-	return strtok_r(s, sep, &state);
-}
-
-char *strtok_r(char *restrict s, const char *restrict sep, char **restrict state) {
-	char *end;
-	if (!s) s = *state;
-	s += strspn(s, sep); /* beginning of token */
-	if (!*s) return NULL;
-
-	end = s + strcspn(s, sep);
-	if (*end) {
-		*end = '\0';
-		*state = end + 1;
-	} else {
-		*state = end;
-	}
-	return s;
-}
-
-int strncmp(const char *s1, const char *s2, size_t n) {
-	while (n-- & *s1 && *s1 == *s2) {
-		s1++; s2++;
-	}
-	if (*s1 == *s2) return  0;
-	if (*s1 <  *s2) return -1;
-	else            return  1;
-}
-
-int strcoll(const char *s1, const char *s2) {
-	return strcmp(s1, s2);
-}
-
-// TODO implement strstr using Boyer-Moore
-char *strstr(const char *s1, const char *s2) {
-	size_t l1 = strlen(s1), l2 = strlen(s2);
-	for (; l2 <= l1; s1++, l1--) {
-		if (memcmp(s1, s2, l2) == 0) return (char*)s1;
-	}
-	return NULL;
-}
-
-char *strcpy(char *restrict s1, const char *restrict s2) {
-	while (*s2) *s1++ = *s2++;
-	*s1 = *s2;
-	return s1;
-}
-
-char *strncpy(char *restrict s1, const char *restrict s2, size_t n) {
-	for (size_t i = 0; i < n; i++) {
-		s1[i] = s2[i];
-		if (s1[i] == '\0') return s1 + i; // TODO fill with null bytes
-	}
-	return s1 + n;
-}
-
-char *strdup(const char *s) {
-	size_t len = strlen(s) + 1;
-	char *buf = malloc(len);
-	if (buf) memcpy(buf, s, len);
-	return buf;
-}
-
-// TODO strerror mapping
-char *strerror(int errnum) {
-	(void)errnum;
-	return "unknown error";
-}
-
-/* strings.h */
-int strcasecmp(const char *s1, const char *s2) {
-	return strncasecmp(s1, s2, ~0);
-}
-
-int strncasecmp(const char *s1, const char *s2, size_t n) {
-	for (size_t i = 0; i < n; i++) {
-		char c1 = tolower(s1[i]), c2 = tolower(s2[i]);
-		if (c1 == '\0' || c1 != c2) {
-			if (c1 < c2)      return -1;
-			else if (c1 > c2) return 1;
-			else              return 0;
-		}
-	}
-	return 0;
-}