// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
#include <inttypes.h>
#include <stdarg.h>
#include <stdbool.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include "nvim/assert.h"
#include "nvim/vim.h"
#include "nvim/ascii.h"
#include "nvim/strings.h"
#include "nvim/file_search.h"
#include "nvim/buffer.h"
#include "nvim/charset.h"
#include "nvim/diff.h"
#include "nvim/edit.h"
#include "nvim/eval.h"
#include "nvim/ex_cmds.h"
#include "nvim/ex_docmd.h"
#include "nvim/ex_getln.h"
#include "nvim/fileio.h"
#include "nvim/func_attr.h"
#include "nvim/fold.h"
#include "nvim/func_attr.h"
#include "nvim/getchar.h"
#include "nvim/mark.h"
#include "nvim/mbyte.h"
#include "nvim/memfile.h"
#include "nvim/memline.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/misc1.h"
#include "nvim/move.h"
#include "nvim/option.h"
#include "nvim/ops.h"
#include "nvim/os_unix.h"
#include "nvim/path.h"
#include "nvim/quickfix.h"
#include "nvim/regexp.h"
#include "nvim/screen.h"
#include "nvim/search.h"
#include "nvim/spell.h"
#include "nvim/syntax.h"
#include "nvim/tag.h"
#include "nvim/window.h"
#include "nvim/os/os.h"
#include "nvim/os/shell.h"
#include "nvim/eval/encode.h"
/*
* Copy "string" into newly allocated memory.
*/
char_u *vim_strsave(const char_u *string)
FUNC_ATTR_NONNULL_RET FUNC_ATTR_MALLOC FUNC_ATTR_NONNULL_ALL
{
return (char_u *)xstrdup((char *)string);
}
/// Copy up to `len` bytes of `string` into newly allocated memory and
/// terminate with a NUL. The allocated memory always has size `len + 1`, even
/// when `string` is shorter.
char_u *vim_strnsave(const char_u *string, size_t len)
FUNC_ATTR_NONNULL_RET FUNC_ATTR_MALLOC FUNC_ATTR_NONNULL_ALL
{
// strncpy is intentional: some parts of Vim use `string` shorter than `len`
// and expect the remainder to be zeroed out.
return (char_u *)strncpy(xmallocz(len), (char *)string, len);
}
/*
* Same as vim_strsave(), but any characters found in esc_chars are preceded
* by a backslash.
*/
char_u *vim_strsave_escaped(const char_u *string, const char_u *esc_chars)
FUNC_ATTR_NONNULL_RET FUNC_ATTR_MALLOC FUNC_ATTR_NONNULL_ALL
{
return vim_strsave_escaped_ext(string, esc_chars, '\\', false);
}
/*
* Same as vim_strsave_escaped(), but when "bsl" is true also escape
* characters where rem_backslash() would remove the backslash.
* Escape the characters with "cc".
*/
char_u *vim_strsave_escaped_ext(const char_u *string, const char_u *esc_chars,
char_u cc, bool bsl)
FUNC_ATTR_NONNULL_RET FUNC_ATTR_MALLOC FUNC_ATTR_NONNULL_ALL
{
/*
* First count the number of backslashes required.
* Then allocate the memory and insert them.
*/
size_t length = 1; // count the trailing NUL
for (const char_u *p = string; *p; p++) {
size_t l;
if (has_mbyte && (l = (size_t)(*mb_ptr2len)(p)) > 1) {
length += l; // cou
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