diff options
Diffstat (limited to 'src/nvim/charset.c')
| -rw-r--r-- | src/nvim/charset.c | 56 |
1 files changed, 36 insertions, 20 deletions
diff --git a/src/nvim/charset.c b/src/nvim/charset.c index efe32b915f..99d3e2dd88 100644 --- a/src/nvim/charset.c +++ b/src/nvim/charset.c @@ -41,8 +41,10 @@ static bool chartab_initialized = false; (buf)->b_chartab[(unsigned)(c) >> 6] |= (1ull << ((c) & 0x3f)) #define RESET_CHARTAB(buf, c) \ (buf)->b_chartab[(unsigned)(c) >> 6] &= ~(1ull << ((c) & 0x3f)) +#define GET_CHARTAB_TAB(chartab, c) \ + ((chartab)[(unsigned)(c) >> 6] & (1ull << ((c) & 0x3f))) #define GET_CHARTAB(buf, c) \ - ((buf)->b_chartab[(unsigned)(c) >> 6] & (1ull << ((c) & 0x3f))) + GET_CHARTAB_TAB((buf)->b_chartab, c) // Table used below, see init_chartab() for an explanation static char_u g_chartab[256]; @@ -88,7 +90,6 @@ int buf_init_chartab(buf_T *buf, int global) { int c; int c2; - char_u *p; int i; bool tilde; bool do_isalpha; @@ -142,7 +143,8 @@ int buf_init_chartab(buf_T *buf, int global) // Walk through the 'isident', 'iskeyword', 'isfname' and 'isprint' // options Each option is a list of characters, character numbers or // ranges, separated by commas, e.g.: "200-210,x,#-178,-" - for (i = global ? 0 : 3; i <= 3; ++i) { + for (i = global ? 0 : 3; i <= 3; i++) { + const char_u *p; if (i == 0) { // first round: 'isident' p = p_isi; @@ -167,7 +169,7 @@ int buf_init_chartab(buf_T *buf, int global) } if (ascii_isdigit(*p)) { - c = getdigits_int(&p); + c = getdigits_int((char_u **)&p); } else { c = mb_ptr2char_adv(&p); } @@ -177,7 +179,7 @@ int buf_init_chartab(buf_T *buf, int global) ++p; if (ascii_isdigit(*p)) { - c2 = getdigits_int(&p); + c2 = getdigits_int((char_u **)&p); } else { c2 = mb_ptr2char_adv(&p); } @@ -634,7 +636,7 @@ int char2cells(int c) /// @param p /// /// @return number of display cells. -int ptr2cells(char_u *p) +int ptr2cells(const char_u *p) { // For UTF-8 we need to look at more bytes if the first byte is >= 0x80. if (*p >= 0x80) { @@ -776,6 +778,20 @@ bool vim_iswordc(int c) return vim_iswordc_buf(c, curbuf); } +/// 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[in] c Character to check. +/// @param[in] chartab Buffer chartab. +bool vim_iswordc_tab(const int c, const uint64_t *const chartab) + FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL +{ + return (c >= 0x100 + ? (utf_class(c) >= 2) + : (c > 0 && GET_CHARTAB_TAB(chartab, c) != 0)); +} + /// 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). @@ -785,10 +801,7 @@ bool vim_iswordc(int c) 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) { - return utf_class(c) >= 2; - } - return c > 0 && c < 0x100 && GET_CHARTAB(buf, c) != 0; + return vim_iswordc_tab(c, buf->b_chartab); } /// Just like vim_iswordc() but uses a pointer to the (multi-byte) character. @@ -1384,7 +1397,8 @@ void getvcols(win_T *wp, pos_T *pos1, pos_T *pos2, colnr_T *left, /// /// @return Pointer to character after the skipped whitespace. char_u *skipwhite(const char_u *q) - FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT + FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL + FUNC_ATTR_NONNULL_RET { const char_u *p = q; while (ascii_iswhite(*p)) { @@ -1393,19 +1407,21 @@ char_u *skipwhite(const char_u *q) return (char_u *)p; } -/// skip over digits +/// Skip over digits /// -/// @param q +/// @param[in] q String to skip digits in. /// /// @return Pointer to the character after the skipped digits. -char_u* skipdigits(char_u *q) +char_u *skipdigits(const char_u *q) + FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL + FUNC_ATTR_NONNULL_RET { - char_u *p = q; + const char_u *p = q; while (ascii_isdigit(*p)) { // skip to next non-digit p++; } - return p; + return (char_u *)p; } /// skip over binary digits @@ -1551,17 +1567,17 @@ int vim_tolower(int c) return TOLOWER_LOC(c); } -/// skiptowhite: skip over text until ' ' or '\t' or NUL. +/// Skip over text until ' ' or '\t' or NUL /// -/// @param p +/// @param[in] p Text to skip over. /// /// @return Pointer to the next whitespace or NUL character. -char_u* skiptowhite(char_u *p) +char_u *skiptowhite(const char_u *p) { while (*p != ' ' && *p != '\t' && *p != NUL) { p++; } - return p; + return (char_u *)p; } /// skiptowhite_esc: Like skiptowhite(), but also skip escaped chars |