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-rw-r--r--src/nvim/charset.c257
1 files changed, 135 insertions, 122 deletions
diff --git a/src/nvim/charset.c b/src/nvim/charset.c
index 9a0e1440cc..d0dc7b66fc 100644
--- a/src/nvim/charset.c
+++ b/src/nvim/charset.c
@@ -32,16 +32,16 @@
#endif
-static int chartab_initialized = FALSE;
+static bool chartab_initialized = false;
-// b_chartab[] is an array of 32 bytes, each bit representing one of the
+// b_chartab[] is an array with 256 bits, each bit representing one of the
// characters 0-255.
#define SET_CHARTAB(buf, c) \
- (buf)->b_chartab[(unsigned)(c) >> 3] |= (1 << ((c) & 0x7))
+ (buf)->b_chartab[(unsigned)(c) >> 6] |= (1ull << ((c) & 0x3f))
#define RESET_CHARTAB(buf, c) \
- (buf)->b_chartab[(unsigned)(c) >> 3] &= ~(1 << ((c) & 0x7))
+ (buf)->b_chartab[(unsigned)(c) >> 6] &= ~(1ull << ((c) & 0x3f))
#define GET_CHARTAB(buf, c) \
- ((buf)->b_chartab[(unsigned)(c) >> 3] & (1 << ((c) & 0x7)))
+ ((buf)->b_chartab[(unsigned)(c) >> 6] & (1ull << ((c) & 0x3f)))
/// Fill chartab[]. Also fills curbuf->b_chartab[] with flags for keyword
/// characters for current buffer.
@@ -69,12 +69,12 @@ static int chartab_initialized = FALSE;
/// an error, OK otherwise.
int init_chartab(void)
{
- return buf_init_chartab(curbuf, TRUE);
+ return buf_init_chartab(curbuf, true);
}
/// Helper for init_chartab
///
-/// @param global FALSE: only set buf->b_chartab[]
+/// @param global false: only set buf->b_chartab[]
///
/// @return FAIL if 'iskeyword', 'isident', 'isfname' or 'isprint' option has
/// an error, OK otherwise.
@@ -84,13 +84,13 @@ int buf_init_chartab(buf_T *buf, int global)
int c2;
char_u *p;
int i;
- int tilde;
- int do_isalpha;
+ bool tilde;
+ bool do_isalpha;
if (global) {
// Set the default size for printable characters:
// From <Space> to '~' is 1 (printable), others are 2 (not printable).
- // This also inits all 'isident' and 'isfname' flags to FALSE.
+ // This also inits all 'isident' and 'isfname' flags to false.
c = 0;
while (c < ' ') {
@@ -133,7 +133,7 @@ int buf_init_chartab(buf_T *buf, int global)
}
}
- // Init word char flags all to FALSE
+ // Init word char flags all to false
memset(buf->b_chartab, 0, (size_t)32);
if (enc_dbcs != 0) {
@@ -169,11 +169,11 @@ int buf_init_chartab(buf_T *buf, int global)
}
while (*p) {
- tilde = FALSE;
- do_isalpha = FALSE;
+ tilde = false;
+ do_isalpha = false;
if ((*p == '^') && (p[1] != NUL)) {
- tilde = TRUE;
+ tilde = true;
++p;
}
@@ -212,7 +212,7 @@ int buf_init_chartab(buf_T *buf, int global)
// standard function isalpha(). This takes care of locale for
// single-byte characters).
if (c == '@') {
- do_isalpha = TRUE;
+ do_isalpha = true;
c = 1;
c2 = 255;
} else {
@@ -231,7 +231,7 @@ int buf_init_chartab(buf_T *buf, int global)
if (i == 0) {
// (re)set ID flag
if (tilde) {
- chartab[c] &= ~CT_ID_CHAR;
+ chartab[c] &= (uint8_t)~CT_ID_CHAR;
} else {
chartab[c] |= CT_ID_CHAR;
}
@@ -244,18 +244,18 @@ int buf_init_chartab(buf_T *buf, int global)
|| (p_altkeymap && (F_isalpha(c) || F_isdigit(c))))
&& !(enc_dbcs && (MB_BYTE2LEN(c) == 2))) {
if (tilde) {
- chartab[c] = (chartab[c] & ~CT_CELL_MASK)
- + ((dy_flags & DY_UHEX) ? 4 : 2);
- chartab[c] &= ~CT_PRINT_CHAR;
+ chartab[c] = (uint8_t)((chartab[c] & ~CT_CELL_MASK)
+ + ((dy_flags & DY_UHEX) ? 4 : 2));
+ chartab[c] &= (uint8_t)~CT_PRINT_CHAR;
} else {
- chartab[c] = (chartab[c] & ~CT_CELL_MASK) + 1;
+ chartab[c] = (uint8_t)((chartab[c] & ~CT_CELL_MASK) + 1);
chartab[c] |= CT_PRINT_CHAR;
}
}
} else if (i == 2) {
// (re)set fname flag
if (tilde) {
- chartab[c] &= ~CT_FNAME_CHAR;
+ chartab[c] &= (uint8_t)~CT_FNAME_CHAR;
} else {
chartab[c] |= CT_FNAME_CHAR;
}
@@ -280,7 +280,7 @@ int buf_init_chartab(buf_T *buf, int global)
}
}
}
- chartab_initialized = TRUE;
+ chartab_initialized = true;
return OK;
}
@@ -333,7 +333,8 @@ char_u *transstr(char_u *s) FUNC_ATTR_NONNULL_RET
{
char_u *res;
char_u *p;
- int l, c;
+ int c;
+ size_t l;
char_u hexbuf[11];
if (has_mbyte) {
@@ -343,7 +344,7 @@ char_u *transstr(char_u *s) FUNC_ATTR_NONNULL_RET
p = s;
while (*p != NUL) {
- if ((l = (*mb_ptr2len)(p)) > 1) {
+ if ((l = (size_t)(*mb_ptr2len)(p)) > 1) {
c = (*mb_ptr2char)(p);
p += l;
@@ -354,7 +355,7 @@ char_u *transstr(char_u *s) FUNC_ATTR_NONNULL_RET
len += STRLEN(hexbuf);
}
} else {
- l = byte2cells(*p++);
+ l = (size_t)byte2cells(*p++);
if (l > 0) {
len += l;
@@ -366,14 +367,14 @@ char_u *transstr(char_u *s) FUNC_ATTR_NONNULL_RET
}
res = xmallocz(len);
} else {
- res = xmallocz(vim_strsize(s));
+ res = xmallocz((size_t)vim_strsize(s));
}
*res = NUL;
p = s;
while (*p != NUL) {
- if (has_mbyte && ((l = (*mb_ptr2len)(p)) > 1)) {
+ if (has_mbyte && ((l = (size_t)(*mb_ptr2len)(p)) > 1)) {
c = (*mb_ptr2char)(p);
if (vim_isprintc(c)) {
@@ -477,9 +478,9 @@ char_u* str_foldcase(char_u *str, int orglen, char_u *buf, int buflen)
i += (*mb_ptr2len)(STR_PTR(i));
} else {
if (buf == NULL) {
- GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i));
+ GA_CHAR(i) = (char_u)TOLOWER_LOC(GA_CHAR(i));
} else {
- buf[i] = TOLOWER_LOC(buf[i]);
+ buf[i] = (char_u)TOLOWER_LOC(buf[i]);
}
++i;
}
@@ -493,7 +494,7 @@ char_u* str_foldcase(char_u *str, int orglen, char_u *buf, int buflen)
// Catch 22: chartab[] can't be initialized before the options are
// initialized, and initializing options may cause transchar() to be called!
-// When chartab_initialized == FALSE don't use chartab[].
+// When chartab_initialized == false don't use chartab[].
// Does NOT work for multi-byte characters, c must be <= 255.
// Also doesn't work for the first byte of a multi-byte, "c" must be a
// character!
@@ -518,7 +519,7 @@ char_u* transchar(int c)
if ((!chartab_initialized && (((c >= ' ') && (c <= '~')) || F_ischar(c)))
|| ((c < 256) && vim_isprintc_strict(c))) {
// printable character
- transchar_buf[i] = c;
+ transchar_buf[i] = (char_u)c;
transchar_buf[i + 1] = NUL;
} else {
transchar_nonprint(transchar_buf + i, c);
@@ -564,7 +565,7 @@ void transchar_nonprint(char_u *buf, int c)
// 0x00 - 0x1f and 0x7f
buf[0] = '^';
// DEL displayed as ^?
- buf[1] = c ^ 0x40;
+ buf[1] = (char_u)(c ^ 0x40);
buf[2] = NUL;
} else if (enc_utf8 && (c >= 0x80)) {
@@ -572,12 +573,12 @@ void transchar_nonprint(char_u *buf, int c)
} else if ((c >= ' ' + 0x80) && (c <= '~' + 0x80)) {
// 0xa0 - 0xfe
buf[0] = '|';
- buf[1] = c - 0x80;
+ buf[1] = (char_u)(c - 0x80);
buf[2] = NUL;
} else {
// 0x80 - 0x9f and 0xff
buf[0] = '~';
- buf[1] = (c - 0x80) ^ 0x40;
+ buf[1] = (char_u)((c - 0x80) ^ 0x40);
buf[2] = NUL;
}
}
@@ -592,11 +593,11 @@ void transchar_hex(char_u *buf, int c)
buf[0] = '<';
if (c > 255) {
- buf[++i] = nr2hex((unsigned)c >> 12);
- buf[++i] = nr2hex((unsigned)c >> 8);
+ buf[++i] = (char_u)nr2hex((unsigned)c >> 12);
+ buf[++i] = (char_u)nr2hex((unsigned)c >> 8);
}
- buf[++i] = nr2hex((unsigned)c >> 4);
- buf[++i] = nr2hex((unsigned)c);
+ buf[++i] = (char_u)(nr2hex((unsigned)c >> 4));
+ buf[++i] = (char_u)(nr2hex((unsigned)c));
buf[++i] = '>';
buf[++i] = NUL;
}
@@ -734,9 +735,8 @@ int vim_strnsize(char_u *s, int len)
/// @return Number of characters.
#define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \
if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) { \
- int ts; \
- ts = (buf)->b_p_ts; \
- return (int)(ts - (col % ts)); \
+ const int ts = (int) (buf)->b_p_ts; \
+ return (ts - (int)(col % ts)); \
} else { \
return ptr2cells(p); \
}
@@ -799,32 +799,35 @@ unsigned int win_linetabsize(win_T *wp, char_u *line, colnr_T len)
return (unsigned int)col;
}
-/// Return TRUE if 'c' is a normal identifier character:
-///
+/// Check that "c" is a normal identifier character:
/// Letters and characters from the 'isident' option.
///
-/// @param c
-///
-/// @return TRUE if 'c' is a normal identifier character.
-int vim_isIDc(int c)
+/// @param c character to check
+bool vim_isIDc(int c)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
return c > 0 && c < 0x100 && (chartab[c] & CT_ID_CHAR);
}
-/// return TRUE if 'c' is a keyword character: Letters and characters from
-/// 'iskeyword' option for current buffer.
-///
+/// Check that "c" is a keyword character:
+/// Letters and characters from 'iskeyword' option for current buffer.
/// For multi-byte characters mb_get_class() is used (builtin rules).
///
-/// @param c
-///
-/// @return TRUE if 'c' is a keyword character.
-int vim_iswordc(int c)
+/// @param c character to check
+bool vim_iswordc(int c)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
return vim_iswordc_buf(c, curbuf);
}
-int vim_iswordc_buf(int c, buf_T *buf)
+/// Check that "c" is a keyword character:
+/// Letters and characters from 'iskeyword' option for given buffer.
+/// For multi-byte characters mb_get_class() is used (builtin rules).
+///
+/// @param c character to check
+/// @param buf buffer whose keywords to use
+bool vim_iswordc_buf(int c, buf_T *buf)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ARG(2)
{
if (c >= 0x100) {
if (enc_dbcs != 0) {
@@ -840,10 +843,11 @@ int vim_iswordc_buf(int c, buf_T *buf)
/// Just like vim_iswordc() but uses a pointer to the (multi-byte) character.
///
-/// @param p
+/// @param p pointer to the multi-byte character
///
-/// @return TRUE if 'p' points to a keyword character.
-int vim_iswordp(char_u *p)
+/// @return true if "p" points to a keyword character.
+bool vim_iswordp(char_u *p)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
if (has_mbyte && (MB_BYTE2LEN(*p) > 1)) {
return mb_get_class(p) >= 2;
@@ -851,7 +855,15 @@ int vim_iswordp(char_u *p)
return GET_CHARTAB(curbuf, *p) != 0;
}
-int vim_iswordp_buf(char_u *p, buf_T *buf)
+/// Just like vim_iswordc_buf() but uses a pointer to the (multi-byte)
+/// character.
+///
+/// @param p pointer to the multi-byte character
+/// @param buf buffer whose keywords to use
+///
+/// @return true if "p" points to a keyword character.
+bool vim_iswordp_buf(char_u *p, buf_T *buf)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
if (has_mbyte && (MB_BYTE2LEN(*p) > 1)) {
return mb_get_class(p) >= 2;
@@ -859,26 +871,24 @@ int vim_iswordp_buf(char_u *p, buf_T *buf)
return GET_CHARTAB(buf, *p) != 0;
}
-/// return TRUE if 'c' is a valid file-name character
+/// Check that "c" is a valid file-name character.
/// Assume characters above 0x100 are valid (multi-byte).
///
-/// @param c
-///
-/// @return TRUE if 'c' is a valid file name character.
-int vim_isfilec(int c)
+/// @param c character to check
+bool vim_isfilec(int c)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
return c >= 0x100 || (c > 0 && (chartab[c] & CT_FNAME_CHAR));
}
-/// return TRUE if 'c' is a valid file-name character or a wildcard character
+/// Check that "c" is a valid file-name character or a wildcard character
/// Assume characters above 0x100 are valid (multi-byte).
/// Explicitly interpret ']' as a wildcard character as path_has_wildcard("]")
/// returns false.
///
-/// @param c
-///
-/// @return TRUE if 'c' is a valid file-name character or wildcard character.
-int vim_isfilec_or_wc(int c)
+/// @param c character to check
+bool vim_isfilec_or_wc(int c)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
char_u buf[2];
buf[0] = (char_u)c;
@@ -886,14 +896,12 @@ int vim_isfilec_or_wc(int c)
return vim_isfilec(c) || c == ']' || path_has_wildcard(buf);
}
-/// return TRUE if 'c' is a printable character
-/// Assume characters above 0x100 are printable (multi-byte), except for
-/// Unicode.
-///
-/// @param c
+/// Check that "c" is a printable character.
+/// Assume characters above 0x100 are printable for double-byte encodings.
///
-/// @return TRUE if 'c' a printable character.
-int vim_isprintc(int c)
+/// @param c character to check
+bool vim_isprintc(int c)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
if (enc_utf8 && (c >= 0x100)) {
return utf_printable(c);
@@ -901,16 +909,17 @@ int vim_isprintc(int c)
return c >= 0x100 || (c > 0 && (chartab[c] & CT_PRINT_CHAR));
}
-/// Strict version of vim_isprintc(c), don't return TRUE if "c" is the head
+/// Strict version of vim_isprintc(c), don't return true if "c" is the head
/// byte of a double-byte character.
///
-/// @param c
+/// @param c character to check
///
-/// @return TRUE if 'c' is a printable character.
-int vim_isprintc_strict(int c)
+/// @return true if "c" is a printable character.
+bool vim_isprintc_strict(int c)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
if ((enc_dbcs != 0) && (c < 0x100) && (MB_BYTE2LEN(c) > 1)) {
- return FALSE;
+ return false;
}
if (enc_utf8 && (c >= 0x100)) {
@@ -921,7 +930,7 @@ int vim_isprintc_strict(int c)
/// like chartabsize(), but also check for line breaks on the screen
///
-/// @param line
+/// @param line
/// @param s
/// @param col
///
@@ -1128,7 +1137,7 @@ static int win_nolbr_chartabsize(win_T *wp, char_u *s, colnr_T col, int *headp)
int n;
if ((*s == TAB) && (!wp->w_p_list || lcs_tab1)) {
- n = wp->w_buffer->b_p_ts;
+ n = (int)wp->w_buffer->b_p_ts;
return n - (col % n);
}
n = ptr2cells(s);
@@ -1144,35 +1153,33 @@ static int win_nolbr_chartabsize(win_T *wp, char_u *s, colnr_T col, int *headp)
return n;
}
-/// Return TRUE if virtual column "vcol" is in the rightmost column of window
-/// "wp".
+/// Check that virtual column "vcol" is in the rightmost column of window "wp".
///
-/// @param wp
-/// @param vcol
-///
-/// @return TRUE if the virtual column is in the rightmost column.
-int in_win_border(win_T *wp, colnr_T vcol)
+/// @param wp window
+/// @param vcol column number
+bool in_win_border(win_T *wp, colnr_T vcol)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ARG(1)
{
int width1; // width of first line (after line number)
int width2; // width of further lines
if (wp->w_width == 0) {
// there is no border
- return FALSE;
+ return false;
}
width1 = wp->w_width - win_col_off(wp);
if ((int)vcol < width1 - 1) {
- return FALSE;
+ return false;
}
if ((int)vcol == width1 - 1) {
- return TRUE;
+ return true;
}
width2 = width1 + win_col_off2(wp);
if (width2 <= 0) {
- return FALSE;
+ return false;
}
return (vcol - width1) % width2 == width2 - 1;
}
@@ -1198,11 +1205,11 @@ void getvcol(win_T *wp, pos_T *pos, colnr_T *start, colnr_T *cursor,
char_u *line; // start of the line
int incr;
int head;
- int ts = wp->w_buffer->b_p_ts;
+ int ts = (int)wp->w_buffer->b_p_ts;
int c;
vcol = 0;
- line = ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE);
+ line = ptr = ml_get_buf(wp->w_buffer, pos->lnum, false);
if (pos->col == MAXCOL) {
// continue until the NUL
@@ -1322,7 +1329,7 @@ colnr_T getvcol_nolist(pos_T *posp)
int list_save = curwin->w_p_list;
colnr_T vcol;
- curwin->w_p_list = FALSE;
+ curwin->w_p_list = false;
getvcol(curwin, posp, NULL, &vcol, NULL);
curwin->w_p_list = list_save;
return vcol;
@@ -1351,7 +1358,7 @@ void getvvcol(win_T *wp, pos_T *pos, colnr_T *start, colnr_T *cursor,
endadd = 0;
// Cannot put the cursor on part of a wide character.
- ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE);
+ ptr = ml_get_buf(wp->w_buffer, pos->lnum, false);
if (pos->col < (colnr_T)STRLEN(ptr)) {
int c = (*mb_ptr2char)(ptr + pos->col);
@@ -1571,10 +1578,14 @@ static char_u latin1lower[257] =
"\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee"
"\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff";
-int vim_islower(int c)
+/// Check that the character is lower-case
+///
+/// @param c character to check
+bool vim_islower(int c)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
if (c <= '@') {
- return FALSE;
+ return false;
}
if (c >= 0x80) {
@@ -1584,11 +1595,11 @@ int vim_islower(int c)
if (c >= 0x100) {
if (has_mbyte) {
- return iswlower(c);
+ return iswlower((wint_t)c);
}
// islower() can't handle these chars and may crash
- return FALSE;
+ return false;
}
if (enc_latin1like) {
@@ -1598,10 +1609,14 @@ int vim_islower(int c)
return islower(c);
}
-int vim_isupper(int c)
+/// Check that the character is upper-case
+///
+/// @param c character to check
+bool vim_isupper(int c)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
if (c <= '@') {
- return FALSE;
+ return false;
}
if (c >= 0x80) {
@@ -1611,11 +1626,11 @@ int vim_isupper(int c)
if (c >= 0x100) {
if (has_mbyte) {
- return iswupper(c);
+ return iswupper((wint_t)c);
}
- // islower() can't handle these chars and may crash
- return FALSE;
+ // isupper() can't handle these chars and may crash
+ return false;
}
if (enc_latin1like) {
@@ -1638,7 +1653,7 @@ int vim_toupper(int c)
if (c >= 0x100) {
if (has_mbyte) {
- return towupper(c);
+ return (int)towupper((wint_t)c);
}
// toupper() can't handle these chars and may crash
@@ -1665,7 +1680,7 @@ int vim_tolower(int c)
if (c >= 0x100) {
if (has_mbyte) {
- return towlower(c);
+ return (int)towlower((wint_t)c);
}
// tolower() can't handle these chars and may crash
@@ -1744,12 +1759,10 @@ long getdigits_long(char_u **pp)
return (long)number;
}
-/// Return TRUE if "lbuf" is empty or only contains blanks.
-///
-/// @param lbuf
+/// Check that "lbuf" is empty or only contains blanks.
///
-/// @return TRUE if `lbuf` is empty or only contains blanks.
-int vim_isblankline(char_u *lbuf)
+/// @param lbuf line buffer to check
+bool vim_isblankline(char_u *lbuf)
{
char_u *p = skipwhite(lbuf);
return *p == NUL || *p == '\r' || *p == '\n';
@@ -1781,10 +1794,11 @@ int vim_isblankline(char_u *lbuf)
/// @param nptr Returns the signed result.
/// @param unptr Returns the unsigned result.
/// @param maxlen Max length of string to check.
-void vim_str2nr(char_u *start, int *prep, int *len, int what,
- long *nptr, unsigned long *unptr, int maxlen)
+void vim_str2nr(const char_u *const start, int *const prep, int *const len,
+ const int what, long *const nptr, unsigned long *const unptr,
+ const int maxlen)
{
- char_u *ptr = start;
+ const char_u *ptr = start;
int pre = 0; // default is decimal
bool negative = false;
unsigned long un = 0;
@@ -1922,8 +1936,8 @@ int hex2nr(int c)
return c - '0';
}
-/// Return true if "str" starts with a backslash that should be removed.
-/// For WIN32 this is only done when the character after the
+/// Check that "str" starts with a backslash that should be removed.
+/// For Windows this is only done when the character after the
/// backslash is not a normal file name character.
/// '$' is a valid file name character, we don't remove the backslash before
/// it. This means it is not possible to use an environment variable after a
@@ -1934,10 +1948,9 @@ int hex2nr(int c)
/// character, assume that all multi-byte characters are valid file name
/// characters.
///
-/// @param str
-///
-/// @return true if `str` starts with a backslash that should be removed.
+/// @param str file path string to check
bool rem_backslash(const char_u *str)
+ FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
#ifdef BACKSLASH_IN_FILENAME
return str[0] == '\\'
generated by cgit (git 2.34.1) at 2025-06-02 18:31:37 +0000