#ifndef GIT_UTF8_H

#define GIT_UTF8_H

struct strbuf;

typedef unsigned int ucs_char_t;  /* assuming 32bit int */

size_t display_mode_esc_sequence_len(const char *s);

int utf8_width(const char **start, size_t *remainder_p);

int utf8_strnwidth(const char *string, size_t len, int skip_ansi);

int utf8_strwidth(const char *string);

int is_utf8(const char *text);

int is_encoding_utf8(const char *name);

int same_encoding(const char *, const char *);

__attribute__((format (printf, 2, 3)))

int utf8_fprintf(FILE *, const char *, ...);

extern const char utf8_bom[];

int skip_utf8_bom(char **, size_t);

void strbuf_add_wrapped_text(struct strbuf *buf,

    const char *text, int indent, int indent2, int width);

void strbuf_add_wrapped_bytes(struct strbuf *buf, const char *data, int len,

           int indent, int indent2, int width);

void strbuf_utf8_replace(struct strbuf *sb, int pos, int width,

       const char *subst);

#ifndef NO_ICONV

char *reencode_string_iconv(const char *in, size_t insz,

          iconv_t conv, size_t bom_len, size_t *outsz);

char *reencode_string_len(const char *in, size_t insz,

        const char *out_encoding,

        const char *in_encoding,

        size_t *outsz);

#else

static inline char *reencode_string_len(const char *a, size_t b,

          const char *c, const char *d, size_t *e)

{ if (e) *e = 0; return NULL; }

#endif

static inline char *reencode_string(const char *in,

            const char *out_encoding,

            const char *in_encoding)

{

  return reencode_string_len(in, strlen(in),

           out_encoding, in_encoding,

           NULL);

}

Unexecuted instantiation: blame.c:reencode_string

Unexecuted instantiation: branch.c:reencode_string

Unexecuted instantiation: fast-export.c:reencode_string

Unexecuted instantiation: fetch.c:reencode_string

Unexecuted instantiation: shortlog.c:reencode_string

Unexecuted instantiation: worktree.c:reencode_string

Unexecuted instantiation: attr.c:reencode_string

Unexecuted instantiation: column.c:reencode_string

Unexecuted instantiation: commit.c:reencode_string

Unexecuted instantiation: config.c:reencode_string

Unexecuted instantiation: convert.c:reencode_string

Unexecuted instantiation: diff.c:reencode_string

Unexecuted instantiation: dir.c:reencode_string

Unexecuted instantiation: fsck.c:reencode_string

Unexecuted instantiation: gettext.c:reencode_string

Unexecuted instantiation: mailinfo.c:reencode_string

Unexecuted instantiation: notes.c:reencode_string

Unexecuted instantiation: parse-options.c:reencode_string

Unexecuted instantiation: pretty.c:reencode_string

Unexecuted instantiation: progress.c:reencode_string

Unexecuted instantiation: read-cache.c:reencode_string

Unexecuted instantiation: ref-filter.c:reencode_string

Unexecuted instantiation: revision.c:reencode_string

Unexecuted instantiation: sequencer.c:reencode_string

Unexecuted instantiation: strbuf.c:reencode_string

Unexecuted instantiation: utf8.c:reencode_string

Unexecuted instantiation: wt-status.c:reencode_string

Unexecuted instantiation: archive-zip.c:reencode_string

int mbs_chrlen(const char **text, size_t *remainder_p, const char *encoding);

/*

 * Returns true if the path would match ".git" after HFS case-folding.

 * The path should be NUL-terminated, but we will match variants of both ".git\0"

 * and ".git/..." (but _not_ ".../.git"). This makes it suitable for both fsck

 * and verify_path().

 *

 * Likewise, the is_hfs_dotgitfoo() variants look for ".gitfoo".

 */

int is_hfs_dotgit(const char *path);

int is_hfs_dotgitmodules(const char *path);

int is_hfs_dotgitignore(const char *path);

int is_hfs_dotgitattributes(const char *path);

int is_hfs_dotmailmap(const char *path);

typedef enum {

  ALIGN_LEFT,

  ALIGN_MIDDLE,

  ALIGN_RIGHT

} align_type;

/*

 * Align the string given and store it into a strbuf as per the

 * 'position' and 'width'. If the given string length is larger than

 * 'width' than then the input string is not truncated and no

 * alignment is done.

 */

void strbuf_utf8_align(struct strbuf *buf, align_type position, unsigned int width,

           const char *s);

/*

 * If a data stream is declared as UTF-16BE or UTF-16LE, then a UTF-16

 * BOM must not be used [1]. The same applies for the UTF-32 equivalents.

 * The function returns true if this rule is violated.

 *

 * [1] https://unicode.org/faq/utf_bom.html#bom10

 */

int has_prohibited_utf_bom(const char *enc, const char *data, size_t len);

/*

 * If the endianness is not defined in the encoding name, then we

 * require a BOM. The function returns true if a required BOM is missing.

 *

 * The Unicode standard instructs to assume big-endian if there in no

 * BOM for UTF-16/32 [1][2]. However, the W3C/WHATWG encoding standard

 * used in HTML5 recommends to assume little-endian to "deal with

 * deployed content" [3].

 *

 * Therefore, strictly requiring a BOM seems to be the safest option for

 * content in Git.

 *

 * [1] https://unicode.org/faq/utf_bom.html#gen6

 * [2] https://www.unicode.org/versions/Unicode10.0.0/ch03.pdf

 *     Section 3.10, D98, page 132

 * [3] https://encoding.spec.whatwg.org/#utf-16le

 */

int is_missing_required_utf_bom(const char *enc, const char *data, size_t len);

#endif