diff options
Diffstat (limited to 'src/nvim/strings.c')
| -rw-r--r-- | src/nvim/strings.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/src/nvim/strings.c b/src/nvim/strings.c index c0c942ffd2..999e6801fb 100644 --- a/src/nvim/strings.c +++ b/src/nvim/strings.c @@ -634,12 +634,12 @@ static const void *tv_ptr(const typval_T *const tvs, int *const idxp) FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT { #define OFF(attr) offsetof(union typval_vval_union, attr) - STATIC_ASSERT(OFF(v_string) == OFF(v_list) + STATIC_ASSERT(OFF(v_string) == OFF(v_list) // -V568 && OFF(v_string) == OFF(v_dict) && OFF(v_string) == OFF(v_partial) - && sizeof(tvs[0].vval.v_string) == sizeof(tvs[0].vval.v_list) // -V568 - && sizeof(tvs[0].vval.v_string) == sizeof(tvs[0].vval.v_dict) // -V568 - && sizeof(tvs[0].vval.v_string) == sizeof(tvs[0].vval.v_partial), // -V568 + && sizeof(tvs[0].vval.v_string) == sizeof(tvs[0].vval.v_list) + && sizeof(tvs[0].vval.v_string) == sizeof(tvs[0].vval.v_dict) + && sizeof(tvs[0].vval.v_string) == sizeof(tvs[0].vval.v_partial), "Strings, dictionaries, lists and partials are expected to be pointers, " "so that all three of them can be accessed via v_string"); #undef OFF @@ -1496,6 +1496,7 @@ int kv_do_printf(StringBuilder *str, const char *fmt, ...) // printed string didn't fit, resize and try again if ((size_t)printed >= remaining) { kv_ensure_space(*str, (size_t)printed + 1); // include space for NUL terminator at the end + assert(str->items != NULL); va_start(ap, fmt); printed = vsnprintf(str->items + str->size, str->capacity - str->size, fmt, ap); va_end(ap); @@ -1507,3 +1508,24 @@ int kv_do_printf(StringBuilder *str, const char *fmt, ...) str->size += (size_t)printed; return printed; } + +/// Reverse text into allocated memory. +/// +/// @return the allocated string. +char_u *reverse_text(char_u *s) + FUNC_ATTR_NONNULL_RET +{ + // Reverse the pattern. + size_t len = STRLEN(s); + char_u *rev = xmalloc(len + 1); + size_t rev_i = len; + for (size_t s_i = 0; s_i < len; s_i++) { + const int mb_len = utfc_ptr2len((char *)s + s_i); + rev_i -= (size_t)mb_len; + memmove(rev + rev_i, s + s_i, (size_t)mb_len); + s_i += (size_t)mb_len - 1; + } + rev[len] = NUL; + + return rev; +} |