/* Reverses the order of NBYTES bytes at address P, thus converting
between little- and big-endian byte orders. */
void
-mm_reverse (void *p, size_t nbytes)
+buf_reverse (char *p, size_t nbytes)
{
unsigned char *h = p, *t = &h[nbytes - 1];
unsigned char temp;
/* Finds the last NEEDLE of length NEEDLE_LEN in a HAYSTACK of length
HAYSTACK_LEN. Returns a pointer to the needle found. */
char *
-mm_find_reverse (const char *haystack, size_t haystack_len,
+buf_find_reverse (const char *haystack, size_t haystack_len,
const char *needle, size_t needle_len)
{
int i;
/* Compares the SIZE bytes in A to those in B, disregarding case,
and returns a strcmp()-type result. */
int
-mm_case_compare (const void *a_, const void *b_, size_t size)
+buf_compare_case (const char *a_, const char *b_, size_t size)
{
- const unsigned char *a = a_;
- const unsigned char *b = b_;
+ const unsigned char *a = (unsigned char *) a_;
+ const unsigned char *b = (unsigned char *) b_;
while (size-- > 0)
{
string is considered to be padded with spaces to the length of
the longer. */
int
-st_compare_pad (const char *a, size_t a_len, const char *b, size_t b_len)
+buf_compare_rpad (const char *a, size_t a_len, const char *b, size_t b_len)
{
size_t min_len;
int result;
}
}
-/* Copies SRC to DEST, truncating to N characters or right-padding
- with spaces to N characters as necessary. Does not append a null
- character. SRC must be null-terminated. */
-void
-st_bare_pad_copy (char *dest, const char *src, size_t n)
+/* Compares strin A to string B. The shorter string is
+ considered to be padded with spaces to the length of the
+ longer. */
+int
+str_compare_rpad (const char *a, const char *b)
{
- size_t len;
+ return buf_compare_rpad (a, strlen (a), b, strlen (b));
+}
- len = strlen (src);
- if (len >= n)
- memcpy (dest, src, n);
+/* Copies string SRC to buffer DST, of size DST_SIZE bytes.
+ DST is truncated to DST_SIZE bytes or padded on the right with
+ spaces as needed. */
+void
+buf_copy_str_rpad (char *dst, size_t dst_size, const char *src)
+{
+ size_t src_len = strlen (src);
+ if (src_len >= dst_size)
+ memcpy (dst, src, dst_size);
else
{
- memcpy (dest, src, len);
- memset (&dest[len], ' ', n - len);
+ memcpy (dst, src, src_len);
+ memset (&dst[src_len], ' ', dst_size - src_len);
}
}
-/* Copies SRC to DEST, truncating SRC to N characters or right-padding
- with spaces to N characters if necessary. Does not append a null
- character. SRC must be LEN characters long but does not need to be
- null-terminated. */
+/* Copies string SRC to buffer DST, of size DST_SIZE bytes.
+ DST is truncated to DST_SIZE bytes or padded on the left with
+ spaces as needed. */
void
-st_bare_pad_len_copy (char *dest, const char *src, size_t n, size_t len)
+buf_copy_str_lpad (char *dst, size_t dst_size, const char *src)
{
- if (len >= n)
- memmove (dest, src, n);
+ size_t src_len = strlen (src);
+ if (src_len >= dst_size)
+ memcpy (dst, src, dst_size);
else
{
- memmove (dest, src, len);
- memset (&dest[len], ' ', n - len);
+ size_t pad_cnt = dst_size - src_len;
+ memset (&dst[0], ' ', pad_cnt);
+ memcpy (dst + pad_cnt, src, src_len);
}
}
-/* Copies SRC to DEST, truncating SRC to N-1 characters or
- right-padding with spaces to N-1 characters if necessary. Always
- appends a null character. */
+/* Copies buffer SRC, of SRC_SIZE bytes, to DST, of DST_SIZE bytes.
+ DST is truncated to DST_SIZE bytes or padded on the right with
+ spaces as needed. */
void
-st_pad_copy (char *dest, const char *src, size_t n)
+buf_copy_rpad (char *dst, size_t dst_size,
+ const char *src, size_t src_size)
{
- size_t len;
-
- len = strlen (src);
- if (len == n - 1)
- strcpy (dest, src);
- else if (len < n - 1)
+ if (src_size >= dst_size)
+ memmove (dst, src, dst_size);
+ else
{
- memcpy (dest, src, len);
- memset (&dest[len], ' ', n - 1 - len);
- dest[n - 1] = 0;
+ memmove (dst, src, src_size);
+ memset (&dst[src_size], ' ', dst_size - src_size);
}
- else
+}
+
+/* Copies string SRC to string DST, which is in a buffer DST_SIZE
+ bytes long.
+ Truncates DST to DST_SIZE - 1 characters or right-pads with
+ spaces to DST_SIZE - 1 characters if necessary. */
+void
+str_copy_rpad (char *dst, size_t dst_size, const char *src)
+{
+ size_t src_len = strlen (src);
+ if (src_len < dst_size - 1)
{
- memcpy (dest, src, n - 1);
- dest[n - 1] = 0;
+ memcpy (dst, src, src_len);
+ memset (&dst[src_len], ' ', dst_size - 1 - src_len);
}
+ else
+ memcpy (dst, src, dst_size - 1);
+ dst[dst_size - 1] = 0;
}
-/* Copies SRC to DST, truncating DST to N-1 characters if
- necessary. Always appends a null character. */
+/* Copies SRC to DST, which is in a buffer DST_SIZE bytes long.
+ Truncates DST to DST_SIZE - 1 characters, if necessary. */
void
-st_trim_copy (char *dst, const char *src, size_t n)
+str_copy_trunc (char *dst, size_t dst_size, const char *src)
{
- size_t len = strlen (src);
- assert (n > 0);
- if (len + 1 < n)
- memcpy (dst, src, len + 1);
+ size_t src_len = strlen (src);
+ assert (dst_size > 0);
+ if (src_len + 1 < dst_size)
+ memcpy (dst, src, src_len + 1);
else
{
- memcpy (dst, src, n - 1);
- dst[n - 1] = '\0';
+ memcpy (dst, src, dst_size - 1);
+ dst[dst_size - 1] = '\0';
}
}
-
/* Converts each character in S to uppercase. */
void
-st_uppercase (char *s)
+str_uppercase (char *s)
{
for (; *s != '\0'; s++)
*s = toupper ((unsigned char) *s);
projects / pspp-builds.git / blobdiff