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mbyte: remove dead code

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This commit is contained in:
Björn Linse 2017-03-22 17:16:49 +01:00
parent a1732b46ab
commit 1d8356a807
3 changed files with 41 additions and 247 deletions
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225
src/nvim/mbyte.c
View File

@ -355,14 +355,13 @@ int bomb_size(void)
*/
void remove_bom(char_u *s)
{
if (enc_utf8) {
char_u *p = s;
while ((p = vim_strbyte(p, 0xef)) != NULL) {
if (p[1] == 0xbb && p[2] == 0xbf)
if (p[1] == 0xbb && p[2] == 0xbf) {
STRMOVE(p, p + 3);
else
++p;
} else {
p++;
}
}
}
@ -388,154 +387,7 @@ int mb_get_class_buf(const char_u *p, buf_T *buf)
return 2;
return 1;
}
if (enc_dbcs != 0 && p[0] != NUL && p[1] != NUL)
return dbcs_class(p[0], p[1]);
if (enc_utf8)
return utf_class(utf_ptr2char(p));
return 0;
}
/*
* Get class of a double-byte character. This always returns 3 or bigger.
* TODO: Should return 1 for punctuation.
*/
int dbcs_class(unsigned lead, unsigned trail)
{
switch (enc_dbcs) {
/* please add classify routine for your language in here */
case DBCS_JPNU: /* ? */
case DBCS_JPN:
{
/* JIS code classification */
unsigned char lb = lead;
unsigned char tb = trail;
/* convert process code to JIS */
/*
* XXX: Code page identification can not use with all
* system! So, some other encoding information
* will be needed.
* In japanese: SJIS,EUC,UNICODE,(JIS)
* Note that JIS-code system don't use as
* process code in most system because it uses
* escape sequences(JIS is context depend encoding).
*/
/* assume process code is JAPANESE-EUC */
lb &= 0x7f;
tb &= 0x7f;
/* exceptions */
switch (lb << 8 | tb) {
case 0x2121: /* ZENKAKU space */
return 0;
case 0x2122: /* TOU-TEN (Japanese comma) */
case 0x2123: /* KU-TEN (Japanese period) */
case 0x2124: /* ZENKAKU comma */
case 0x2125: /* ZENKAKU period */
return 1;
case 0x213c: /* prolongedsound handled as KATAKANA */
return 13;
}
/* sieved by KU code */
switch (lb) {
case 0x21:
case 0x22:
/* special symbols */
return 10;
case 0x23:
/* alpha-numeric */
return 11;
case 0x24:
/* hiragana */
return 12;
case 0x25:
/* katakana */
return 13;
case 0x26:
/* greek */
return 14;
case 0x27:
/* russian */
return 15;
case 0x28:
/* lines */
return 16;
default:
/* kanji */
return 17;
}
}
case DBCS_KORU: /* ? */
case DBCS_KOR:
{
/* KS code classification */
unsigned char c1 = lead;
unsigned char c2 = trail;
/*
* 20 : Hangul
* 21 : Hanja
* 22 : Symbols
* 23 : Alpha-numeric/Roman Letter (Full width)
* 24 : Hangul Letter(Alphabet)
* 25 : Roman Numeral/Greek Letter
* 26 : Box Drawings
* 27 : Unit Symbols
* 28 : Circled/Parenthesized Letter
* 29 : Hiragana/Katakana
* 30 : Cyrillic Letter
*/
if (c1 >= 0xB0 && c1 <= 0xC8)
/* Hangul */
return 20;
else if (c1 >= 0xCA && c1 <= 0xFD)
/* Hanja */
return 21;
else switch (c1) {
case 0xA1:
case 0xA2:
/* Symbols */
return 22;
case 0xA3:
/* Alpha-numeric */
return 23;
case 0xA4:
/* Hangul Letter(Alphabet) */
return 24;
case 0xA5:
/* Roman Numeral/Greek Letter */
return 25;
case 0xA6:
/* Box Drawings */
return 26;
case 0xA7:
/* Unit Symbols */
return 27;
case 0xA8:
case 0xA9:
if (c2 <= 0xAF)
return 25; /* Roman Letter */
else if (c2 >= 0xF6)
return 22; /* Symbols */
else
/* Circled/Parenthesized Letter */
return 28;
case 0xAA:
case 0xAB:
/* Hiragana/Katakana */
return 29;
case 0xAC:
/* Cyrillic Letter */
return 30;
}
}
default:
break;
}
return 3;
}
/*
@ -788,10 +640,7 @@ int mb_cptr2char_adv(char_u **pp)
int c;
c = (*mb_ptr2char)(*pp);
if (enc_utf8)
*pp += utf_ptr2len(*pp);
else
*pp += (*mb_ptr2len)(*pp);
return c;
}
@ -1542,36 +1391,7 @@ int utf16_to_utf8(const WCHAR *strw, char **str)
*/
int mb_strnicmp(char_u *s1, char_u *s2, size_t nn)
{
int i, l;
int cdiff;
int n = (int)nn;
if (enc_utf8) {
return utf_strnicmp(s1, s2, nn, nn);
} else {
for (i = 0; i < n; i += l) {
if (s1[i] == NUL && s2[i] == NUL) /* both strings end */
return 0;
l = (*mb_ptr2len)(s1 + i);
if (l <= 1) {
/* Single byte: first check normally, then with ignore case. */
if (s1[i] != s2[i]) {
cdiff = vim_tolower(s1[i]) - vim_tolower(s2[i]);
if (cdiff != 0)
return cdiff;
}
} else {
/* For non-Unicode multi-byte don't ignore case. */
if (l > n - i)
l = n - i;
cdiff = STRNCMP(s1 + i, s2 + i, l);
if (cdiff != 0)
return cdiff;
}
}
}
return 0;
}
/* We need to call mb_stricmp() even when we aren't dealing with a multi-byte
@ -1699,29 +1519,26 @@ int mb_off_next(char_u *base, char_u *p)
int i;
int j;
if (enc_utf8) {
if (*p < 0x80) /* be quick for ASCII */
if (*p < 0x80) { // be quick for ASCII
return 0;
}
/* Find the next character that isn't 10xx.xxxx */
for (i = 0; (p[i] & 0xc0) == 0x80; ++i)
;
// Find the next character that isn't 10xx.xxxx
for (i = 0; (p[i] & 0xc0) == 0x80; i++) {}
if (i > 0) {
/* Check for illegal sequence. */
for (j = 0; p - j > base; ++j)
if ((p[-j] & 0xc0) != 0x80)
// Check for illegal sequence.
for (j = 0; p - j > base; j++) {
if ((p[-j] & 0xc0) != 0x80) {
break;
if (utf8len_tab[p[-j]] != i + j)
}
}
if (utf8len_tab[p[-j]] != i + j) {
return 0;
}
}
return i;
}
/* Only need to check if we're on a trail byte, it doesn't matter if we
* want the offset to the next or current character. */
return (*mb_head_off)(base, p);
}
/*
* Return the offset from "p" to the last byte of the character it points
* into. Can start anywhere in a stream of bytes.
@ -1762,10 +1579,10 @@ void utf_find_illegal(void)
char_u *tofree = NULL;
vimconv.vc_type = CONV_NONE;
if (enc_utf8 && (enc_canon_props(curbuf->b_p_fenc) & ENC_8BIT)) {
/* 'encoding' is "utf-8" but we are editing a 8-bit encoded file,
* possibly a utf-8 file with illegal bytes. Setup for conversion
* from utf-8 to 'fileencoding'. */
if (enc_canon_props(curbuf->b_p_fenc) & ENC_8BIT) {
// 'encoding' is "utf-8" but we are editing a 8-bit encoded file,
// possibly a utf-8 file with illegal bytes. Setup for conversion
// from utf-8 to 'fileencoding'.
convert_setup(&vimconv, p_enc, curbuf->b_p_fenc);
}
@ -2279,13 +2096,7 @@ static char_u * iconv_string(vimconv_T *vcp, char_u *str, size_t slen,
*to++ = '?';
if ((*mb_ptr2cells)((char_u *)from) > 1)
*to++ = '?';
if (enc_utf8)
l = utfc_ptr2len_len((const char_u *)from, (int)fromlen);
else {
l = (*mb_ptr2len)((char_u *)from);
if (l > (int)fromlen)
l = (int)fromlen;
}
from += l;
fromlen -= l;
} else if (ICONV_ERRNO != ICONV_E2BIG) {

30
src/nvim/search.c
View File

@ -2417,32 +2417,20 @@ static int cls(void)
int c;
c = gchar_cursor();
if (p_altkeymap && c == F_BLANK)
if (p_altkeymap && c == F_BLANK) {
return 0;
if (c == ' ' || c == '\t' || c == NUL)
return 0;
if (enc_dbcs != 0 && c > 0xFF) {
/* If cls_bigword, report multi-byte chars as class 1. */
if (enc_dbcs == DBCS_KOR && cls_bigword)
return 1;
/* process code leading/trailing bytes */
return dbcs_class(((unsigned)c >> 8), (c & 0xFF));
}
if (enc_utf8) {
if (c == ' ' || c == '\t' || c == NUL) {
return 0;
}
c = utf_class(c);
if (c != 0 && cls_bigword)
// If cls_bigword is TRUE, report all non-blanks as class 1.
if (c != 0 && cls_bigword) {
return 1;
return c;
}
/* If cls_bigword is TRUE, report all non-blanks as class 1. */
if (cls_bigword)
return 1;
if (vim_iswordc(c))
return 2;
return 1;
return c;
}
/*

7
src/nvim/spell.c
View File

@ -2623,7 +2623,7 @@ bool spell_iswordp_nmw(char_u *p, win_T *wp)
// Returns true if word class indicates a word character.
// Only for characters above 255.
// Unicode subscript and superscript are not considered word characters.
// See also dbcs_class() and utf_class() in mbyte.c.
// See also utf_class() in mbyte.c.
static bool spell_mb_isword_class(int cl, win_T *wp)
{
if (wp->w_s->b_cjk)
@ -2646,12 +2646,7 @@ static bool spell_iswordp_w(int *p, win_T *wp)
s = p;
if (*s > 255) {
if (enc_utf8)
return spell_mb_isword_class(utf_class(*s), wp);
if (enc_dbcs)
return spell_mb_isword_class(
dbcs_class((unsigned)*s >> 8, *s & 0xff), wp);
return false;
}
return spelltab.st_isw[*s];
}