mirror of
https://github.com/vim/vim
synced 2025-03-16 06:47:52 +01:00
Problem: 'smoothscroll' gets stuck with 'listchars' "eol". Solution: Count size of 'listchars' "eol" in line size when scrolling. (zeertzjq) related: neovim/neovim#32405 closes: #16627 Signed-off-by: zeertzjq <zeertzjq@outlook.com> Signed-off-by: Christian Brabandt <cb@256bit.org>
2570 lines
60 KiB
C
2570 lines
60 KiB
C
/* vi:set ts=8 sts=4 sw=4 noet:
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*
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* VIM - Vi IMproved by Bram Moolenaar
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*
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* Do ":help uganda" in Vim to read copying and usage conditions.
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* Do ":help credits" in Vim to see a list of people who contributed.
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* See README.txt for an overview of the Vim source code.
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*/
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#include "vim.h"
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#if defined(HAVE_WCHAR_H)
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# include <wchar.h> // for towupper() and towlower()
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#endif
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static int parse_isopt(char_u *var, buf_T *buf, int only_check);
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static int win_nolbr_chartabsize(chartabsize_T *cts, int *headp);
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static unsigned nr2hex(unsigned c);
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static int chartab_initialized = FALSE;
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// b_chartab[] is an array of 32 bytes, each bit representing one of the
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// characters 0-255.
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#define SET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] |= (1 << ((c) & 0x7))
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#define RESET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] &= ~(1 << ((c) & 0x7))
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#define GET_CHARTAB(buf, c) ((buf)->b_chartab[(unsigned)(c) >> 3] & (1 << ((c) & 0x7)))
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// table used below, see init_chartab() for an explanation
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static char_u g_chartab[256];
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/*
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* Flags for g_chartab[].
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*/
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#define CT_CELL_MASK 0x07 // mask: nr of display cells (1, 2 or 4)
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#define CT_PRINT_CHAR 0x10 // flag: set for printable chars
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#define CT_ID_CHAR 0x20 // flag: set for ID chars
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#define CT_FNAME_CHAR 0x40 // flag: set for file name chars
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static int in_win_border(win_T *wp, colnr_T vcol);
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/*
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* Fill g_chartab[]. Also fills curbuf->b_chartab[] with flags for keyword
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* characters for current buffer.
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*
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* Depends on the option settings 'iskeyword', 'isident', 'isfname',
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* 'isprint' and 'encoding'.
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*
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* The index in g_chartab[] depends on 'encoding':
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* - For non-multi-byte index with the byte (same as the character).
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* - For DBCS index with the first byte.
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* - For UTF-8 index with the character (when first byte is up to 0x80 it is
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* the same as the character, if the first byte is 0x80 and above it depends
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* on further bytes).
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*
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* The contents of g_chartab[]:
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* - The lower two bits, masked by CT_CELL_MASK, give the number of display
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* cells the character occupies (1 or 2). Not valid for UTF-8 above 0x80.
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* - CT_PRINT_CHAR bit is set when the character is printable (no need to
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* translate the character before displaying it). Note that only DBCS
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* characters can have 2 display cells and still be printable.
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* - CT_FNAME_CHAR bit is set when the character can be in a file name.
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* - CT_ID_CHAR bit is set when the character can be in an identifier.
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*
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* Return FAIL if 'iskeyword', 'isident', 'isfname' or 'isprint' option has an
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* error, OK otherwise.
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*/
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int
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init_chartab(void)
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{
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return buf_init_chartab(curbuf, TRUE);
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}
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int
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buf_init_chartab(
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buf_T *buf,
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int global) // FALSE: only set buf->b_chartab[]
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{
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int c;
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char_u *p;
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int i;
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if (global)
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{
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/*
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* Set the default size for printable characters:
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* From <Space> to '~' is 1 (printable), others are 2 (not printable).
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* This also inits all 'isident' and 'isfname' flags to FALSE.
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*/
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c = 0;
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while (c < ' ')
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g_chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2;
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while (c <= '~')
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g_chartab[c++] = 1 + CT_PRINT_CHAR;
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while (c < 256)
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{
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// UTF-8: bytes 0xa0 - 0xff are printable (latin1)
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if (enc_utf8 && c >= 0xa0)
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g_chartab[c++] = CT_PRINT_CHAR + 1;
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// euc-jp characters starting with 0x8e are single width
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else if (enc_dbcs == DBCS_JPNU && c == 0x8e)
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g_chartab[c++] = CT_PRINT_CHAR + 1;
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// other double-byte chars can be printable AND double-width
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else if (enc_dbcs != 0 && MB_BYTE2LEN(c) == 2)
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g_chartab[c++] = CT_PRINT_CHAR + 2;
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else
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// the rest is unprintable by default
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g_chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2;
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}
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// Assume that every multi-byte char is a filename character.
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for (c = 1; c < 256; ++c)
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if ((enc_dbcs != 0 && MB_BYTE2LEN(c) > 1)
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|| (enc_dbcs == DBCS_JPNU && c == 0x8e)
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|| (enc_utf8 && c >= 0xa0))
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g_chartab[c] |= CT_FNAME_CHAR;
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}
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/*
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* Init word char flags all to FALSE
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*/
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CLEAR_FIELD(buf->b_chartab);
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if (enc_dbcs != 0)
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for (c = 0; c < 256; ++c)
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{
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// double-byte characters are probably word characters
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if (MB_BYTE2LEN(c) == 2)
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SET_CHARTAB(buf, c);
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}
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/*
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* In lisp mode the '-' character is included in keywords.
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*/
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if (buf->b_p_lisp)
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SET_CHARTAB(buf, '-');
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// Walk through the 'isident', 'iskeyword', 'isfname' and 'isprint' options.
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for (i = global ? 0 : 3; i <= 3; ++i)
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{
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if (i == 0)
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p = p_isi; // first round: 'isident'
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else if (i == 1)
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p = p_isp; // second round: 'isprint'
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else if (i == 2)
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p = p_isf; // third round: 'isfname'
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else // i == 3
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p = buf->b_p_isk; // fourth round: 'iskeyword'
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if (parse_isopt(p, buf, FALSE) == FAIL)
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return FAIL;
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}
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chartab_initialized = TRUE;
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return OK;
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}
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/**
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* Checks the format for the option settings 'iskeyword', 'isident', 'isfname'
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* or 'isprint'.
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* Returns FAIL if has an error, OK otherwise.
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*/
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int
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check_isopt(char_u *var)
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{
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return parse_isopt(var, NULL, TRUE);
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}
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static int
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parse_isopt(
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char_u *var,
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buf_T *buf,
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int only_check) // FALSE: refill g_chartab[]
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{
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char_u *p = var;
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int c;
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int c2;
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int tilde;
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int do_isalpha;
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int trail_comma;
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// Parses the 'isident', 'iskeyword', 'isfname' and 'isprint' options.
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// Each option is a list of characters, character numbers or ranges,
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// separated by commas, e.g.: "200-210,x,#-178,-"
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while (*p)
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{
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tilde = FALSE;
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do_isalpha = FALSE;
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if (*p == '^' && p[1] != NUL)
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{
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tilde = TRUE;
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++p;
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}
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if (VIM_ISDIGIT(*p))
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c = getdigits(&p);
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else if (has_mbyte)
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c = mb_ptr2char_adv(&p);
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else
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c = *p++;
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c2 = -1;
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if (*p == '-' && p[1] != NUL)
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{
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++p;
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if (VIM_ISDIGIT(*p))
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c2 = getdigits(&p);
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else if (has_mbyte)
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c2 = mb_ptr2char_adv(&p);
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else
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c2 = *p++;
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}
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if (c <= 0 || c >= 256 || (c2 < c && c2 != -1) || c2 >= 256
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|| !(*p == NUL || *p == ','))
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return FAIL;
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trail_comma = *p == ',';
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p = skip_to_option_part(p);
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if (trail_comma && *p == NUL)
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// Trailing comma is not allowed.
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return FAIL;
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if (only_check)
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continue;
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if (c2 == -1) // not a range
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{
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/*
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* A single '@' (not "@-@"):
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* Decide on letters being ID/printable/keyword chars with
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* standard function isalpha(). This takes care of locale for
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* single-byte characters).
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*/
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if (c == '@')
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{
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do_isalpha = TRUE;
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c = 1;
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c2 = 255;
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}
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else
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c2 = c;
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}
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while (c <= c2)
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{
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// Use the MB_ functions here, because isalpha() doesn't
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// work properly when 'encoding' is "latin1" and the locale is
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// "C".
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if (!do_isalpha || MB_ISLOWER(c) || MB_ISUPPER(c))
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{
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if (var == p_isi) // (re)set ID flag
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{
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if (tilde)
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g_chartab[c] &= ~CT_ID_CHAR;
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else
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g_chartab[c] |= CT_ID_CHAR;
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}
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else if (var == p_isp) // (re)set printable
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{
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if ((c < ' ' || c > '~'
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// For double-byte we keep the cell width, so
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// that we can detect it from the first byte.
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) && !(enc_dbcs && MB_BYTE2LEN(c) == 2))
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{
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if (tilde)
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{
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g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK)
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+ ((dy_flags & DY_UHEX) ? 4 : 2);
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g_chartab[c] &= ~CT_PRINT_CHAR;
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}
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else
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{
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g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK) + 1;
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g_chartab[c] |= CT_PRINT_CHAR;
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}
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}
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}
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else if (var == p_isf) // (re)set fname flag
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{
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if (tilde)
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g_chartab[c] &= ~CT_FNAME_CHAR;
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else
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g_chartab[c] |= CT_FNAME_CHAR;
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}
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else // var == p_isk || var == buf->b_p_isk
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// (re)set keyword flag
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{
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if (tilde)
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RESET_CHARTAB(buf, c);
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else
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SET_CHARTAB(buf, c);
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}
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}
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++c;
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}
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}
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return OK;
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}
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/*
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* Translate any special characters in buf[bufsize] in-place.
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* The result is a string with only printable characters, but if there is not
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* enough room, not all characters will be translated.
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*/
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void
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trans_characters(
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char_u *buf,
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int bufsize)
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{
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int len; // length of string needing translation
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int room; // room in buffer after string
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char_u *trs; // translated character
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int trs_len; // length of trs[]
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len = (int)STRLEN(buf);
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room = bufsize - len;
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while (*buf != 0)
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{
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// Assume a multi-byte character doesn't need translation.
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if (has_mbyte && (trs_len = (*mb_ptr2len)(buf)) > 1)
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len -= trs_len;
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else
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{
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trs = transchar_byte(*buf);
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trs_len = (int)STRLEN(trs);
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if (trs_len > 1)
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{
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room -= trs_len - 1;
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if (room <= 0)
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return;
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mch_memmove(buf + trs_len, buf + 1, (size_t)len);
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}
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mch_memmove(buf, trs, (size_t)trs_len);
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--len;
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}
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buf += trs_len;
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}
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}
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/*
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* Translate a string into allocated memory, replacing special chars with
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* printable chars. Returns NULL when out of memory.
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*/
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char_u *
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transstr(char_u *s)
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{
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char_u *res;
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char_u *p;
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int l, len, c;
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char_u hexbuf[11];
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if (has_mbyte)
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{
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// Compute the length of the result, taking account of unprintable
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// multi-byte characters.
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len = 0;
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p = s;
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while (*p != NUL)
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{
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if ((l = (*mb_ptr2len)(p)) > 1)
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{
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c = (*mb_ptr2char)(p);
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p += l;
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if (vim_isprintc(c))
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len += l;
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else
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{
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transchar_hex(hexbuf, c);
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len += (int)STRLEN(hexbuf);
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}
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}
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else
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{
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l = byte2cells(*p++);
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if (l > 0)
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len += l;
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else
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len += 4; // illegal byte sequence
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}
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}
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res = alloc(len + 1);
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}
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else
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res = alloc(vim_strsize(s) + 1);
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if (res == NULL)
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return NULL;
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*res = NUL;
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p = s;
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while (*p != NUL)
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{
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if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
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{
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c = (*mb_ptr2char)(p);
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if (vim_isprintc(c))
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STRNCAT(res, p, l); // append printable multi-byte char
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else
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transchar_hex(res + STRLEN(res), c);
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p += l;
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}
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else
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STRCAT(res, transchar_byte(*p++));
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}
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return res;
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}
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/*
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* Convert the string "str[orglen]" to do ignore-case comparing. Uses the
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* current locale.
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* When "buf" is NULL returns an allocated string (NULL for out-of-memory).
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* Otherwise puts the result in "buf[buflen]".
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*/
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char_u *
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str_foldcase(
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char_u *str,
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int orglen,
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char_u *buf,
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int buflen)
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{
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garray_T ga;
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int i;
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int len = orglen;
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#define GA_CHAR(i) ((char_u *)ga.ga_data)[i]
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#define GA_PTR(i) ((char_u *)ga.ga_data + (i))
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#define STR_CHAR(i) (buf == NULL ? GA_CHAR(i) : buf[i])
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#define STR_PTR(i) (buf == NULL ? GA_PTR(i) : buf + (i))
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// Copy "str" into "buf" or allocated memory, unmodified.
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if (buf == NULL)
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{
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ga_init2(&ga, 1, 10);
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if (ga_grow(&ga, len + 1) == FAIL)
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return NULL;
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mch_memmove(ga.ga_data, str, (size_t)len);
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ga.ga_len = len;
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}
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else
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{
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if (len >= buflen) // Ugly!
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len = buflen - 1;
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mch_memmove(buf, str, (size_t)len);
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}
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if (buf == NULL)
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GA_CHAR(len) = NUL;
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else
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buf[len] = NUL;
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// Make each character lower case.
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i = 0;
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while (STR_CHAR(i) != NUL)
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{
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if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(STR_CHAR(i)) > 1))
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{
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if (enc_utf8)
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{
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int c = utf_ptr2char(STR_PTR(i));
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int olen = utf_ptr2len(STR_PTR(i));
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int lc = utf_tolower(c);
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// Only replace the character when it is not an invalid
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// sequence (ASCII character or more than one byte) and
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// utf_tolower() doesn't return the original character.
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if ((c < 0x80 || olen > 1) && c != lc)
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{
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int nlen = utf_char2len(lc);
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// If the byte length changes need to shift the following
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// characters forward or backward.
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if (olen != nlen)
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{
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if (nlen > olen)
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{
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if (buf == NULL
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? ga_grow(&ga, nlen - olen + 1) == FAIL
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: len + nlen - olen >= buflen)
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{
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// out of memory, keep old char
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lc = c;
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nlen = olen;
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}
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}
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if (olen != nlen)
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{
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if (buf == NULL)
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{
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STRMOVE(GA_PTR(i) + nlen, GA_PTR(i) + olen);
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ga.ga_len += nlen - olen;
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}
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else
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{
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STRMOVE(buf + i + nlen, buf + i + olen);
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len += nlen - olen;
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}
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}
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}
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(void)utf_char2bytes(lc, STR_PTR(i));
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}
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}
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// skip to next multi-byte char
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i += (*mb_ptr2len)(STR_PTR(i));
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}
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else
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{
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if (buf == NULL)
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GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i));
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else
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buf[i] = TOLOWER_LOC(buf[i]);
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++i;
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}
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}
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if (buf == NULL)
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return (char_u *)ga.ga_data;
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return buf;
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}
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/*
|
|
* Catch 22: g_chartab[] can't be initialized before the options are
|
|
* initialized, and initializing options may cause transchar() to be called!
|
|
* When chartab_initialized == FALSE don't use g_chartab[].
|
|
* Does NOT work for multi-byte characters, c must be <= 255.
|
|
* Also doesn't work for the first byte of a multi-byte, "c" must be a
|
|
* character!
|
|
*/
|
|
static char_u transchar_charbuf[7];
|
|
|
|
char_u *
|
|
transchar(int c)
|
|
{
|
|
return transchar_buf(curbuf, c);
|
|
}
|
|
|
|
char_u *
|
|
transchar_buf(buf_T *buf, int c)
|
|
{
|
|
int i;
|
|
|
|
i = 0;
|
|
if (IS_SPECIAL(c)) // special key code, display as ~@ char
|
|
{
|
|
transchar_charbuf[0] = '~';
|
|
transchar_charbuf[1] = '@';
|
|
i = 2;
|
|
c = K_SECOND(c);
|
|
}
|
|
|
|
if ((!chartab_initialized && ((c >= ' ' && c <= '~')))
|
|
|| (c < 256 && vim_isprintc_strict(c)))
|
|
{
|
|
// printable character
|
|
transchar_charbuf[i] = c;
|
|
transchar_charbuf[i + 1] = NUL;
|
|
}
|
|
else
|
|
transchar_nonprint(buf, transchar_charbuf + i, c);
|
|
return transchar_charbuf;
|
|
}
|
|
|
|
/*
|
|
* Like transchar(), but called with a byte instead of a character. Checks
|
|
* for an illegal UTF-8 byte. Uses 'fileformat' of the current buffer.
|
|
*/
|
|
char_u *
|
|
transchar_byte(int c)
|
|
{
|
|
return transchar_byte_buf(curbuf, c);
|
|
}
|
|
|
|
/*
|
|
* Like transchar_buf(), but called with a byte instead of a character. Checks
|
|
* for an illegal UTF-8 byte. Uses 'fileformat' of "buf", unless it is NULL.
|
|
*/
|
|
char_u *
|
|
transchar_byte_buf(buf_T *buf, int c)
|
|
{
|
|
if (enc_utf8 && c >= 0x80)
|
|
{
|
|
transchar_nonprint(buf, transchar_charbuf, c);
|
|
return transchar_charbuf;
|
|
}
|
|
return transchar_buf(buf, c);
|
|
}
|
|
/*
|
|
* Convert non-printable character to two or more printable characters in
|
|
* "charbuf[]". "charbuf" needs to be able to hold five bytes.
|
|
* Does NOT work for multi-byte characters, c must be <= 255.
|
|
*/
|
|
void
|
|
transchar_nonprint(buf_T *buf, char_u *charbuf, int c)
|
|
{
|
|
if (c == NL)
|
|
c = NUL; // we use newline in place of a NUL
|
|
else if (buf != NULL && c == CAR && get_fileformat(buf) == EOL_MAC)
|
|
c = NL; // we use CR in place of NL in this case
|
|
|
|
if (dy_flags & DY_UHEX) // 'display' has "uhex"
|
|
transchar_hex(charbuf, c);
|
|
|
|
else if (c <= 0x7f) // 0x00 - 0x1f and 0x7f
|
|
{
|
|
charbuf[0] = '^';
|
|
charbuf[1] = c ^ 0x40; // DEL displayed as ^?
|
|
charbuf[2] = NUL;
|
|
}
|
|
else if (enc_utf8)
|
|
{
|
|
transchar_hex(charbuf, c);
|
|
}
|
|
else if (c >= ' ' + 0x80 && c <= '~' + 0x80) // 0xa0 - 0xfe
|
|
{
|
|
charbuf[0] = '|';
|
|
charbuf[1] = c - 0x80;
|
|
charbuf[2] = NUL;
|
|
}
|
|
else // 0x80 - 0x9f and 0xff
|
|
{
|
|
charbuf[0] = '~';
|
|
charbuf[1] = (c - 0x80) ^ 0x40; // 0xff displayed as ~?
|
|
charbuf[2] = NUL;
|
|
}
|
|
}
|
|
|
|
void
|
|
transchar_hex(char_u *buf, int c)
|
|
{
|
|
int i = 0;
|
|
|
|
buf[0] = '<';
|
|
if (c > 255)
|
|
{
|
|
buf[++i] = nr2hex((unsigned)c >> 12);
|
|
buf[++i] = nr2hex((unsigned)c >> 8);
|
|
}
|
|
buf[++i] = nr2hex((unsigned)c >> 4);
|
|
buf[++i] = nr2hex((unsigned)c);
|
|
buf[++i] = '>';
|
|
buf[++i] = NUL;
|
|
}
|
|
|
|
/*
|
|
* Convert the lower 4 bits of byte "c" to its hex character.
|
|
* Lower case letters are used to avoid the confusion of <F1> being 0xf1 or
|
|
* function key 1.
|
|
*/
|
|
static unsigned
|
|
nr2hex(unsigned c)
|
|
{
|
|
if ((c & 0xf) <= 9)
|
|
return (c & 0xf) + '0';
|
|
return (c & 0xf) - 10 + 'a';
|
|
}
|
|
|
|
/*
|
|
* Return number of display cells occupied by byte "b".
|
|
* Caller must make sure 0 <= b <= 255.
|
|
* For multi-byte mode "b" must be the first byte of a character.
|
|
* A TAB is counted as two cells: "^I".
|
|
* For UTF-8 mode this will return 0 for bytes >= 0x80, because the number of
|
|
* cells depends on further bytes.
|
|
*/
|
|
int
|
|
byte2cells(int b)
|
|
{
|
|
if (enc_utf8 && b >= 0x80)
|
|
return 0;
|
|
return (g_chartab[b] & CT_CELL_MASK);
|
|
}
|
|
|
|
/*
|
|
* Return number of display cells occupied by character "c".
|
|
* "c" can be a special key (negative number) in which case 3 or 4 is returned.
|
|
* A TAB is counted as two cells: "^I" or four: "<09>".
|
|
*/
|
|
int
|
|
char2cells(int c)
|
|
{
|
|
if (IS_SPECIAL(c))
|
|
return char2cells(K_SECOND(c)) + 2;
|
|
if (c >= 0x80)
|
|
{
|
|
// UTF-8: above 0x80 need to check the value
|
|
if (enc_utf8)
|
|
return utf_char2cells(c);
|
|
// DBCS: double-byte means double-width, except for euc-jp with first
|
|
// byte 0x8e
|
|
if (enc_dbcs != 0 && c >= 0x100)
|
|
{
|
|
if (enc_dbcs == DBCS_JPNU && ((unsigned)c >> 8) == 0x8e)
|
|
return 1;
|
|
return 2;
|
|
}
|
|
}
|
|
return (g_chartab[c & 0xff] & CT_CELL_MASK);
|
|
}
|
|
|
|
/*
|
|
* Return number of display cells occupied by character at "*p".
|
|
* A TAB is counted as two cells: "^I" or four: "<09>".
|
|
*/
|
|
int
|
|
ptr2cells(char_u *p)
|
|
{
|
|
if (!has_mbyte)
|
|
return byte2cells(*p);
|
|
|
|
// For UTF-8 we need to look at more bytes if the first byte is >= 0x80.
|
|
if (enc_utf8 && *p >= 0x80)
|
|
return utf_ptr2cells(p);
|
|
// For DBCS we can tell the cell count from the first byte.
|
|
return (g_chartab[*p] & CT_CELL_MASK);
|
|
}
|
|
|
|
/*
|
|
* Return the number of character cells string "s" will take on the screen,
|
|
* counting TABs as two characters: "^I".
|
|
*/
|
|
int
|
|
vim_strsize(char_u *s)
|
|
{
|
|
return vim_strnsize(s, (int)MAXCOL);
|
|
}
|
|
|
|
/*
|
|
* Return the number of character cells string "s[len]" will take on the
|
|
* screen, counting TABs as two characters: "^I".
|
|
*/
|
|
int
|
|
vim_strnsize(char_u *s, int len)
|
|
{
|
|
int size = 0;
|
|
|
|
while (*s != NUL && --len >= 0)
|
|
{
|
|
int l = (*mb_ptr2len)(s);
|
|
|
|
size += ptr2cells(s);
|
|
s += l;
|
|
len -= l - 1;
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
/*
|
|
* Return the number of characters 'c' will take on the screen, taking
|
|
* into account the size of a tab.
|
|
* Use a define to make it fast, this is used very often!!!
|
|
* Also see getvcol() below.
|
|
*/
|
|
|
|
#ifdef FEAT_VARTABS
|
|
# define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \
|
|
if (*(p) == TAB && (!(wp)->w_p_list || (wp)->w_lcs_chars.tab1)) \
|
|
{ \
|
|
return tabstop_padding(col, (buf)->b_p_ts, (buf)->b_p_vts_array); \
|
|
} \
|
|
else \
|
|
return ptr2cells(p);
|
|
#else
|
|
# define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \
|
|
if (*(p) == TAB && (!(wp)->w_p_list || wp->w_lcs_chars.tab1)) \
|
|
{ \
|
|
int ts; \
|
|
ts = (buf)->b_p_ts; \
|
|
return (int)(ts - (col % ts)); \
|
|
} \
|
|
else \
|
|
return ptr2cells(p);
|
|
#endif
|
|
|
|
int
|
|
chartabsize(char_u *p, colnr_T col)
|
|
{
|
|
RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, p, col)
|
|
}
|
|
|
|
#if defined(FEAT_LINEBREAK) || defined(PROTO)
|
|
int
|
|
win_chartabsize(win_T *wp, char_u *p, colnr_T col)
|
|
{
|
|
RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, p, col)
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Return the number of characters the string "s" will take on the screen,
|
|
* taking into account the size of a tab.
|
|
* Does not handle text properties, since "s" is not a buffer line.
|
|
*/
|
|
int
|
|
linetabsize_str(char_u *s)
|
|
{
|
|
return linetabsize_col(0, s);
|
|
}
|
|
|
|
/*
|
|
* Like linetabsize_str(), but "s" starts at column "startcol".
|
|
*/
|
|
int
|
|
linetabsize_col(int startcol, char_u *s)
|
|
{
|
|
chartabsize_T cts;
|
|
vimlong_T vcol;
|
|
|
|
init_chartabsize_arg(&cts, curwin, 0, startcol, s, s);
|
|
vcol = cts.cts_vcol;
|
|
|
|
while (*cts.cts_ptr != NUL)
|
|
{
|
|
vcol += lbr_chartabsize_adv(&cts);
|
|
if (vcol > MAXCOL)
|
|
{
|
|
cts.cts_vcol = MAXCOL;
|
|
break;
|
|
}
|
|
else
|
|
cts.cts_vcol = (int)vcol;
|
|
}
|
|
clear_chartabsize_arg(&cts);
|
|
return (int)cts.cts_vcol;
|
|
}
|
|
|
|
/*
|
|
* Like linetabsize_str(), but for a given window instead of the current one.
|
|
* Doesn't count the size of 'listchars' "eol".
|
|
*/
|
|
int
|
|
win_linetabsize(win_T *wp, linenr_T lnum, char_u *line, colnr_T len)
|
|
{
|
|
chartabsize_T cts;
|
|
|
|
init_chartabsize_arg(&cts, wp, lnum, 0, line, line);
|
|
win_linetabsize_cts(&cts, len);
|
|
clear_chartabsize_arg(&cts);
|
|
return (int)cts.cts_vcol;
|
|
}
|
|
|
|
/*
|
|
* Return the number of cells line "lnum" of window "wp" will take on the
|
|
* screen, taking into account the size of a tab and text properties.
|
|
* Doesn't count the size of 'listchars' "eol".
|
|
*/
|
|
int
|
|
linetabsize(win_T *wp, linenr_T lnum)
|
|
{
|
|
return win_linetabsize(wp, lnum,
|
|
ml_get_buf(wp->w_buffer, lnum, FALSE), (colnr_T)MAXCOL);
|
|
}
|
|
|
|
/*
|
|
* Like linetabsize(), but counts the size of 'listchars' "eol".
|
|
*/
|
|
int
|
|
linetabsize_eol(win_T *wp, linenr_T lnum)
|
|
{
|
|
return linetabsize(wp, lnum)
|
|
+ ((wp->w_p_list && wp->w_lcs_chars.eol != NUL) ? 1 : 0);
|
|
}
|
|
|
|
/*
|
|
* Like linetabsize(), but excludes 'above'/'after'/'right'/'below' aligned
|
|
* virtual text, while keeping inline virtual text.
|
|
*/
|
|
int
|
|
linetabsize_no_outer(win_T *wp, linenr_T lnum)
|
|
{
|
|
#ifndef FEAT_PROP_POPUP
|
|
return linetabsize(wp, lnum);
|
|
#else
|
|
chartabsize_T cts;
|
|
char_u *line = ml_get_buf(wp->w_buffer, lnum, FALSE);
|
|
|
|
init_chartabsize_arg(&cts, wp, lnum, 0, line, line);
|
|
|
|
if (cts.cts_text_prop_count)
|
|
{
|
|
int write_idx = 0;
|
|
for (int read_idx = 0; read_idx < cts.cts_text_prop_count; read_idx++)
|
|
{
|
|
textprop_T *tp = &cts.cts_text_props[read_idx];
|
|
if (tp->tp_col != MAXCOL)
|
|
{
|
|
if (read_idx != write_idx)
|
|
cts.cts_text_props[write_idx] = *tp;
|
|
write_idx++;
|
|
}
|
|
}
|
|
cts.cts_text_prop_count = write_idx;
|
|
if (cts.cts_text_prop_count == 0)
|
|
VIM_CLEAR(cts.cts_text_props);
|
|
}
|
|
|
|
win_linetabsize_cts(&cts, (colnr_T)MAXCOL);
|
|
clear_chartabsize_arg(&cts);
|
|
return (int)cts.cts_vcol;
|
|
#endif
|
|
}
|
|
|
|
void
|
|
win_linetabsize_cts(chartabsize_T *cts, colnr_T len)
|
|
{
|
|
vimlong_T vcol = cts->cts_vcol;
|
|
#ifdef FEAT_PROP_POPUP
|
|
cts->cts_with_trailing = len == MAXCOL;
|
|
#endif
|
|
for ( ; *cts->cts_ptr != NUL && (len == MAXCOL || cts->cts_ptr < cts->cts_line + len);
|
|
MB_PTR_ADV(cts->cts_ptr))
|
|
{
|
|
vcol += win_lbr_chartabsize(cts, NULL);
|
|
if (vcol > MAXCOL)
|
|
{
|
|
cts->cts_vcol = MAXCOL;
|
|
break;
|
|
}
|
|
else
|
|
cts->cts_vcol = (int)vcol;
|
|
}
|
|
#ifdef FEAT_PROP_POPUP
|
|
// check for a virtual text at the end of a line or on an empty line
|
|
if (len == MAXCOL && cts->cts_has_prop_with_text && *cts->cts_ptr == NUL)
|
|
{
|
|
(void)win_lbr_chartabsize(cts, NULL);
|
|
vcol += cts->cts_cur_text_width;
|
|
// when properties are above or below the empty line must also be
|
|
// counted
|
|
if (cts->cts_ptr == cts->cts_line && cts->cts_prop_lines > 0)
|
|
++vcol;
|
|
cts->cts_vcol = vcol > MAXCOL ? MAXCOL : (int)vcol;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if 'c' is a normal identifier character:
|
|
* Letters and characters from the 'isident' option.
|
|
*/
|
|
int
|
|
vim_isIDc(int c)
|
|
{
|
|
return (c > 0 && c < 0x100 && (g_chartab[c] & CT_ID_CHAR));
|
|
}
|
|
|
|
/*
|
|
* Like vim_isIDc() but not using the 'isident' option: letters, numbers and
|
|
* underscore.
|
|
*/
|
|
int
|
|
vim_isNormalIDc(int c)
|
|
{
|
|
return ASCII_ISALNUM(c) || c == '_';
|
|
}
|
|
|
|
/*
|
|
* return TRUE if 'c' is a keyword character: Letters and characters from
|
|
* 'iskeyword' option for the current buffer.
|
|
* For multi-byte characters mb_get_class() is used (builtin rules).
|
|
*/
|
|
int
|
|
vim_iswordc(int c)
|
|
{
|
|
return vim_iswordc_buf(c, curbuf);
|
|
}
|
|
|
|
int
|
|
vim_iswordc_buf(int c, buf_T *buf)
|
|
{
|
|
if (c >= 0x100)
|
|
{
|
|
if (enc_dbcs != 0)
|
|
return dbcs_class((unsigned)c >> 8, (unsigned)(c & 0xff)) >= 2;
|
|
if (enc_utf8)
|
|
return utf_class_buf(c, buf) >= 2;
|
|
return FALSE;
|
|
}
|
|
return (c > 0 && GET_CHARTAB(buf, c) != 0);
|
|
}
|
|
|
|
/*
|
|
* Just like vim_iswordc() but uses a pointer to the (multi-byte) character.
|
|
*/
|
|
int
|
|
vim_iswordp(char_u *p)
|
|
{
|
|
return vim_iswordp_buf(p, curbuf);
|
|
}
|
|
|
|
int
|
|
vim_iswordp_buf(char_u *p, buf_T *buf)
|
|
{
|
|
int c = *p;
|
|
|
|
if (has_mbyte && MB_BYTE2LEN(c) > 1)
|
|
c = (*mb_ptr2char)(p);
|
|
return vim_iswordc_buf(c, buf);
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if 'c' is a valid file-name character as specified with the
|
|
* 'isfname' option.
|
|
* Assume characters above 0x100 are valid (multi-byte).
|
|
* To be used for commands like "gf".
|
|
*/
|
|
int
|
|
vim_isfilec(int c)
|
|
{
|
|
return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_FNAME_CHAR)));
|
|
}
|
|
|
|
#if defined(FEAT_SPELL) || defined(PROTO)
|
|
/*
|
|
* Return TRUE if 'c' is a valid file-name character, including characters left
|
|
* out of 'isfname' to make "gf" work, such as comma, space, '@', etc.
|
|
*/
|
|
int
|
|
vim_is_fname_char(int c)
|
|
{
|
|
return vim_isfilec(c) || c == ',' || c == ' ' || c == '@';
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* return TRUE if 'c' is a valid file-name character or a wildcard character
|
|
* Assume characters above 0x100 are valid (multi-byte).
|
|
* Explicitly interpret ']' as a wildcard character as mch_has_wildcard("]")
|
|
* returns false.
|
|
*/
|
|
int
|
|
vim_isfilec_or_wc(int c)
|
|
{
|
|
char_u buf[2];
|
|
|
|
buf[0] = (char_u)c;
|
|
buf[1] = NUL;
|
|
return vim_isfilec(c) || c == ']' || mch_has_wildcard(buf);
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if 'c' is a printable character.
|
|
* Assume characters above 0x100 are printable (multi-byte), except for
|
|
* Unicode.
|
|
*/
|
|
int
|
|
vim_isprintc(int c)
|
|
{
|
|
if (enc_utf8 && c >= 0x100)
|
|
return utf_printable(c);
|
|
return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR)));
|
|
}
|
|
|
|
/*
|
|
* Strict version of vim_isprintc(c), don't return TRUE if "c" is the head
|
|
* byte of a double-byte character.
|
|
*/
|
|
int
|
|
vim_isprintc_strict(int c)
|
|
{
|
|
if (enc_dbcs != 0 && c < 0x100 && MB_BYTE2LEN(c) > 1)
|
|
return FALSE;
|
|
if (enc_utf8 && c >= 0x100)
|
|
return utf_printable(c);
|
|
return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR)));
|
|
}
|
|
|
|
/*
|
|
* Prepare the structure passed to chartabsize functions.
|
|
* "line" is the start of the line, "ptr" is the first relevant character.
|
|
* When "lnum" is zero do not use text properties that insert text.
|
|
*/
|
|
void
|
|
init_chartabsize_arg(
|
|
chartabsize_T *cts,
|
|
win_T *wp,
|
|
linenr_T lnum UNUSED,
|
|
colnr_T col,
|
|
char_u *line,
|
|
char_u *ptr)
|
|
{
|
|
CLEAR_POINTER(cts);
|
|
cts->cts_win = wp;
|
|
cts->cts_vcol = col;
|
|
cts->cts_line = line;
|
|
cts->cts_ptr = ptr;
|
|
#ifdef FEAT_LINEBREAK
|
|
cts->cts_bri_size = -1;
|
|
#endif
|
|
#ifdef FEAT_PROP_POPUP
|
|
if (lnum > 0 && !ignore_text_props)
|
|
{
|
|
char_u *prop_start;
|
|
int count;
|
|
|
|
count = get_text_props(wp->w_buffer, lnum, &prop_start, FALSE);
|
|
cts->cts_text_prop_count = count;
|
|
if (count > 0)
|
|
{
|
|
// Make a copy of the properties, so that they are properly
|
|
// aligned. Make it twice as long for the sorting below.
|
|
cts->cts_text_props = ALLOC_MULT(textprop_T, count * 2);
|
|
if (cts->cts_text_props == NULL)
|
|
cts->cts_text_prop_count = 0;
|
|
else
|
|
{
|
|
int i;
|
|
|
|
mch_memmove(cts->cts_text_props + count, prop_start,
|
|
count * sizeof(textprop_T));
|
|
for (i = 0; i < count; ++i)
|
|
{
|
|
textprop_T *tp = cts->cts_text_props + i + count;
|
|
if (tp->tp_id < 0
|
|
&& text_prop_type_valid(wp->w_buffer, tp))
|
|
{
|
|
cts->cts_has_prop_with_text = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
if (!cts->cts_has_prop_with_text)
|
|
{
|
|
// won't use the text properties, free them
|
|
VIM_CLEAR(cts->cts_text_props);
|
|
cts->cts_text_prop_count = 0;
|
|
}
|
|
else
|
|
{
|
|
int *text_prop_idxs;
|
|
|
|
// Need to sort the array to get any truncation right.
|
|
// Do the sorting in the second part of the array, then
|
|
// move the sorted props to the first part of the array.
|
|
text_prop_idxs = ALLOC_MULT(int, count);
|
|
if (text_prop_idxs != NULL)
|
|
{
|
|
for (i = 0; i < count; ++i)
|
|
text_prop_idxs[i] = i + count;
|
|
sort_text_props(curbuf, cts->cts_text_props,
|
|
text_prop_idxs, count);
|
|
// Here we want the reverse order.
|
|
for (i = 0; i < count; ++i)
|
|
cts->cts_text_props[count - i - 1] =
|
|
cts->cts_text_props[text_prop_idxs[i]];
|
|
vim_free(text_prop_idxs);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Free any allocated item in "cts".
|
|
*/
|
|
void
|
|
clear_chartabsize_arg(chartabsize_T *cts UNUSED)
|
|
{
|
|
#ifdef FEAT_PROP_POPUP
|
|
if (cts->cts_text_prop_count > 0)
|
|
{
|
|
VIM_CLEAR(cts->cts_text_props);
|
|
cts->cts_text_prop_count = 0;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Like chartabsize(), but also check for line breaks on the screen and text
|
|
* properties that insert text.
|
|
*/
|
|
int
|
|
lbr_chartabsize(chartabsize_T *cts)
|
|
{
|
|
#if defined(FEAT_LINEBREAK) || defined(FEAT_PROP_POPUP)
|
|
if (1
|
|
# ifdef FEAT_LINEBREAK
|
|
&& !curwin->w_p_lbr && *get_showbreak_value(curwin) == NUL
|
|
&& !curwin->w_p_bri
|
|
# endif
|
|
# ifdef FEAT_PROP_POPUP
|
|
&& !cts->cts_has_prop_with_text
|
|
#endif
|
|
)
|
|
{
|
|
#endif
|
|
if (curwin->w_p_wrap)
|
|
return win_nolbr_chartabsize(cts, NULL);
|
|
RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, cts->cts_ptr, cts->cts_vcol)
|
|
#if defined(FEAT_LINEBREAK) || defined(FEAT_PROP_POPUP)
|
|
}
|
|
return win_lbr_chartabsize(cts, NULL);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Call lbr_chartabsize() and advance the pointer.
|
|
*/
|
|
int
|
|
lbr_chartabsize_adv(chartabsize_T *cts)
|
|
{
|
|
int retval;
|
|
|
|
retval = lbr_chartabsize(cts);
|
|
MB_PTR_ADV(cts->cts_ptr);
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* Return the screen size of the character indicated by "cts".
|
|
* "cts->cts_cur_text_width" is set to the extra size for a text property that
|
|
* inserts text.
|
|
* This function is used very often, keep it fast!!!!
|
|
*
|
|
* If "headp" not NULL, set "*headp" to the size of 'showbreak'/'breakindent'
|
|
* included in the return value.
|
|
* When "cts->cts_max_head_vcol" is positive, only count in "*headp" the size
|
|
* of 'showbreak'/'breakindent' before "cts->cts_max_head_vcol".
|
|
* When "cts->cts_max_head_vcol" is negative, only count in "*headp" the size
|
|
* of 'showbreak'/'breakindent' before where cursor should be placed.
|
|
*
|
|
* Warning: "*headp" may not be set if it's 0, init to 0 before calling.
|
|
*/
|
|
int
|
|
win_lbr_chartabsize(
|
|
chartabsize_T *cts,
|
|
int *headp UNUSED)
|
|
{
|
|
win_T *wp = cts->cts_win;
|
|
#if defined(FEAT_PROP_POPUP) || defined(FEAT_LINEBREAK)
|
|
char_u *line = cts->cts_line; // start of the line
|
|
#endif
|
|
char_u *s = cts->cts_ptr;
|
|
colnr_T vcol = cts->cts_vcol;
|
|
#ifdef FEAT_LINEBREAK
|
|
int size;
|
|
int mb_added = 0;
|
|
int n;
|
|
char_u *sbr;
|
|
int no_sbr = FALSE;
|
|
#endif
|
|
|
|
#if defined(FEAT_PROP_POPUP)
|
|
cts->cts_cur_text_width = 0;
|
|
cts->cts_first_char = 0;
|
|
#endif
|
|
|
|
#if defined(FEAT_LINEBREAK) || defined(FEAT_PROP_POPUP)
|
|
/*
|
|
* No 'linebreak', 'showbreak', 'breakindent' and text properties that
|
|
* insert text: return quickly.
|
|
*/
|
|
if (1
|
|
# ifdef FEAT_LINEBREAK
|
|
&& !wp->w_p_lbr && !wp->w_p_bri && *get_showbreak_value(wp) == NUL
|
|
# endif
|
|
# ifdef FEAT_PROP_POPUP
|
|
&& !cts->cts_has_prop_with_text
|
|
# endif
|
|
)
|
|
#endif
|
|
{
|
|
if (wp->w_p_wrap)
|
|
return win_nolbr_chartabsize(cts, headp);
|
|
RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, s, vcol)
|
|
}
|
|
|
|
#if defined(FEAT_LINEBREAK) || defined(FEAT_PROP_POPUP)
|
|
int has_lcs_eol = wp->w_p_list && wp->w_lcs_chars.eol != NUL;
|
|
|
|
/*
|
|
* First get the normal size, without 'linebreak' or text properties
|
|
*/
|
|
size = win_chartabsize(wp, s, vcol);
|
|
if (*s == NUL)
|
|
{
|
|
// 1 cell for EOL list char (if present), as opposed to the two cell ^@
|
|
// for a NUL character in the text.
|
|
size = has_lcs_eol ? 1 : 0;
|
|
}
|
|
# ifdef FEAT_LINEBREAK
|
|
int is_doublewidth = has_mbyte && size == 2 && MB_BYTE2LEN(*s) > 1;
|
|
# endif
|
|
|
|
# ifdef FEAT_PROP_POPUP
|
|
if (cts->cts_has_prop_with_text)
|
|
{
|
|
int tab_size = size;
|
|
int charlen = *s == NUL ? 1 : mb_ptr2len(s);
|
|
int i;
|
|
int col = (int)(s - line);
|
|
garray_T *gap = &wp->w_buffer->b_textprop_text;
|
|
|
|
// The "$" for 'list' mode will go between the EOL and
|
|
// the text prop, account for that.
|
|
if (has_lcs_eol)
|
|
{
|
|
++vcol;
|
|
--size;
|
|
}
|
|
|
|
for (i = 0; i < cts->cts_text_prop_count; ++i)
|
|
{
|
|
textprop_T *tp = cts->cts_text_props + i;
|
|
int col_off = win_col_off(wp);
|
|
|
|
// Watch out for the text being deleted. "cts_text_props" is a
|
|
// copy, the text prop may actually have been removed from the line.
|
|
if (tp->tp_id < 0
|
|
&& ((tp->tp_col - 1 >= col
|
|
&& tp->tp_col - 1 < col + charlen)
|
|
|| (tp->tp_col == MAXCOL
|
|
&& ((tp->tp_flags & TP_FLAG_ALIGN_ABOVE)
|
|
? col == 0
|
|
: s[0] == NUL && cts->cts_with_trailing)))
|
|
&& -tp->tp_id - 1 < gap->ga_len)
|
|
{
|
|
char_u *p = ((char_u **)gap->ga_data)[-tp->tp_id - 1];
|
|
|
|
if (p != NULL)
|
|
{
|
|
int cells;
|
|
|
|
if (tp->tp_col == MAXCOL)
|
|
{
|
|
int n_extra = (int)STRLEN(p);
|
|
|
|
cells = text_prop_position(wp, tp, vcol,
|
|
(vcol + size) % (wp->w_width - col_off) + col_off,
|
|
&n_extra, &p, NULL, NULL, FALSE);
|
|
# ifdef FEAT_LINEBREAK
|
|
no_sbr = TRUE; // don't use 'showbreak' now
|
|
# endif
|
|
}
|
|
else
|
|
cells = vim_strsize(p);
|
|
cts->cts_cur_text_width += cells;
|
|
if (tp->tp_flags & TP_FLAG_ALIGN_ABOVE)
|
|
cts->cts_first_char += cells;
|
|
else
|
|
size += cells;
|
|
cts->cts_start_incl = tp->tp_flags & TP_FLAG_START_INCL;
|
|
if (*s == TAB)
|
|
{
|
|
// tab size changes because of the inserted text
|
|
size -= tab_size;
|
|
tab_size = win_chartabsize(wp, s, vcol + size);
|
|
size += tab_size;
|
|
}
|
|
if (tp->tp_col == MAXCOL && (tp->tp_flags
|
|
& (TP_FLAG_ALIGN_ABOVE | TP_FLAG_ALIGN_BELOW)))
|
|
// count extra line for property above/below
|
|
++cts->cts_prop_lines;
|
|
}
|
|
}
|
|
if (tp->tp_col != MAXCOL && tp->tp_col - 1 > col)
|
|
break;
|
|
}
|
|
if (has_lcs_eol)
|
|
{
|
|
--vcol;
|
|
++size;
|
|
}
|
|
}
|
|
# endif
|
|
|
|
# ifdef FEAT_LINEBREAK
|
|
if (is_doublewidth && wp->w_p_wrap && in_win_border(wp, vcol + size - 2))
|
|
{
|
|
++size; // Count the ">" in the last column.
|
|
mb_added = 1;
|
|
}
|
|
|
|
/*
|
|
* May have to add something for 'breakindent' and/or 'showbreak'
|
|
* string at the start of a screen line.
|
|
*/
|
|
int head = mb_added;
|
|
sbr = no_sbr ? empty_option : get_showbreak_value(wp);
|
|
// When "size" is 0, no new screen line is started.
|
|
if (size > 0 && wp->w_p_wrap && (*sbr != NUL || wp->w_p_bri))
|
|
{
|
|
int col_off_prev = win_col_off(wp);
|
|
int width2 = wp->w_width - col_off_prev + win_col_off2(wp);
|
|
colnr_T wcol = vcol + col_off_prev;
|
|
# ifdef FEAT_PROP_POPUP
|
|
wcol -= wp->w_virtcol_first_char;
|
|
# endif
|
|
colnr_T max_head_vcol = cts->cts_max_head_vcol;
|
|
int added = 0;
|
|
|
|
// cells taken by 'showbreak'/'breakindent' before current char
|
|
int head_prev = 0;
|
|
if (wcol >= wp->w_width)
|
|
{
|
|
wcol -= wp->w_width;
|
|
col_off_prev = wp->w_width - width2;
|
|
if (wcol >= width2 && width2 > 0)
|
|
wcol %= width2;
|
|
if (*sbr != NUL)
|
|
head_prev += vim_strsize(sbr);
|
|
if (wp->w_p_bri)
|
|
{
|
|
if (cts->cts_bri_size < 0)
|
|
cts->cts_bri_size = get_breakindent_win(wp, line);
|
|
head_prev += cts->cts_bri_size;
|
|
}
|
|
if (wcol < head_prev)
|
|
{
|
|
head_prev -= wcol;
|
|
wcol += head_prev;
|
|
added += head_prev;
|
|
if (max_head_vcol <= 0 || vcol < max_head_vcol)
|
|
head += head_prev;
|
|
}
|
|
else
|
|
head_prev = 0;
|
|
wcol += col_off_prev;
|
|
}
|
|
|
|
if (wcol + size > wp->w_width)
|
|
{
|
|
// cells taken by 'showbreak'/'breakindent' halfway current char
|
|
int head_mid = 0;
|
|
if (*sbr != NUL)
|
|
head_mid += vim_strsize(sbr);
|
|
if (wp->w_p_bri)
|
|
{
|
|
if (cts->cts_bri_size < 0)
|
|
cts->cts_bri_size = get_breakindent_win(wp, line);
|
|
head_mid += cts->cts_bri_size;
|
|
}
|
|
if (head_mid > 0)
|
|
{
|
|
// Calculate effective window width.
|
|
int prev_rem = wp->w_width - wcol;
|
|
int width = width2 - head_mid;
|
|
|
|
if (width <= 0)
|
|
width = 1;
|
|
// Divide "size - prev_rem" by "width", rounding up.
|
|
int cnt = (size - prev_rem + width - 1) / width;
|
|
added += cnt * head_mid;
|
|
|
|
if (max_head_vcol == 0 || vcol + size + added < max_head_vcol)
|
|
head += cnt * head_mid;
|
|
else if (max_head_vcol > vcol + head_prev + prev_rem)
|
|
head += (max_head_vcol - (vcol + head_prev + prev_rem)
|
|
+ width2 - 1) / width2 * head_mid;
|
|
else if (max_head_vcol < 0)
|
|
{
|
|
int off = mb_added;
|
|
# ifdef FEAT_PROP_POPUP
|
|
if (*s != NUL
|
|
&& ((State & MODE_NORMAL) || cts->cts_start_incl))
|
|
off += cts->cts_cur_text_width;
|
|
# endif
|
|
if (off >= prev_rem)
|
|
head += (1 + (off - prev_rem) / width) * head_mid;
|
|
}
|
|
}
|
|
}
|
|
|
|
size += added;
|
|
}
|
|
|
|
if (headp != NULL)
|
|
*headp = head;
|
|
|
|
int need_lbr = FALSE;
|
|
/*
|
|
* If 'linebreak' set check at a blank before a non-blank if the line
|
|
* needs a break here.
|
|
*/
|
|
if (wp->w_p_lbr && wp->w_p_wrap && wp->w_width != 0
|
|
&& VIM_ISBREAK((int)s[0]) && !VIM_ISBREAK((int)s[1]))
|
|
{
|
|
char_u *t = cts->cts_line;
|
|
while (VIM_ISBREAK((int)t[0]))
|
|
t++;
|
|
// 'linebreak' is only needed when not in leading whitespace.
|
|
need_lbr = s >= t;
|
|
}
|
|
if (need_lbr)
|
|
{
|
|
/*
|
|
* Count all characters from first non-blank after a blank up to next
|
|
* non-blank after a blank.
|
|
*/
|
|
int numberextra = win_col_off(wp);
|
|
colnr_T col_adj = size - 1;
|
|
colnr_T colmax = (colnr_T)(wp->w_width - numberextra - col_adj);
|
|
if (vcol >= colmax)
|
|
{
|
|
colmax += col_adj;
|
|
n = colmax + win_col_off2(wp);
|
|
if (n > 0)
|
|
colmax += (((vcol - colmax) / n) + 1) * n - col_adj;
|
|
}
|
|
|
|
colnr_T vcol2 = vcol;
|
|
for (;;)
|
|
{
|
|
char_u *ps = s;
|
|
MB_PTR_ADV(s);
|
|
int c = *s;
|
|
if (!(c != NUL
|
|
&& (VIM_ISBREAK(c)
|
|
|| (!VIM_ISBREAK(c)
|
|
&& (vcol2 == vcol || !VIM_ISBREAK((int)*ps))))))
|
|
break;
|
|
|
|
vcol2 += win_chartabsize(wp, s, vcol2);
|
|
if (vcol2 >= colmax) // doesn't fit
|
|
{
|
|
size = colmax - vcol + col_adj;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
# ifdef FEAT_PROP_POPUP
|
|
size += cts->cts_first_char;
|
|
# endif
|
|
return size;
|
|
# endif
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Like win_lbr_chartabsize(), except that we know 'linebreak' is off, 'wrap'
|
|
* is on and there are no properties that insert text. This means we need to
|
|
* check for a double-byte character that doesn't fit at the end of the screen
|
|
* line.
|
|
* Only uses "cts_win", "cts_ptr" and "cts_vcol" from "cts".
|
|
*/
|
|
static int
|
|
win_nolbr_chartabsize(
|
|
chartabsize_T *cts,
|
|
int *headp)
|
|
{
|
|
win_T *wp = cts->cts_win;
|
|
char_u *s = cts->cts_ptr;
|
|
colnr_T col = cts->cts_vcol;
|
|
int n;
|
|
|
|
if (*s == TAB && (!wp->w_p_list || wp->w_lcs_chars.tab1))
|
|
{
|
|
# ifdef FEAT_VARTABS
|
|
return tabstop_padding(col, wp->w_buffer->b_p_ts,
|
|
wp->w_buffer->b_p_vts_array);
|
|
# else
|
|
n = wp->w_buffer->b_p_ts;
|
|
return (int)(n - (col % n));
|
|
# endif
|
|
}
|
|
n = ptr2cells(s);
|
|
// Add one cell for a double-width character in the last column of the
|
|
// window, displayed with a ">".
|
|
if (n == 2 && MB_BYTE2LEN(*s) > 1 && in_win_border(wp, col))
|
|
{
|
|
if (headp != NULL)
|
|
*headp = 1;
|
|
return 3;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if virtual column "vcol" is in the rightmost column of window
|
|
* "wp".
|
|
*/
|
|
static int
|
|
in_win_border(win_T *wp, colnr_T vcol)
|
|
{
|
|
int width1; // width of first line (after line number)
|
|
int width2; // width of further lines
|
|
|
|
if (wp->w_width == 0) // there is no border
|
|
return FALSE;
|
|
width1 = wp->w_width - win_col_off(wp);
|
|
if ((int)vcol < width1 - 1)
|
|
return FALSE;
|
|
if ((int)vcol == width1 - 1)
|
|
return TRUE;
|
|
width2 = width1 + win_col_off2(wp);
|
|
if (width2 <= 0)
|
|
return FALSE;
|
|
return ((vcol - width1) % width2 == width2 - 1);
|
|
}
|
|
|
|
/*
|
|
* Get virtual column number of pos.
|
|
* start: on the first position of this character (TAB, ctrl)
|
|
* cursor: where the cursor is on this character (first char, except for TAB)
|
|
* end: on the last position of this character (TAB, ctrl)
|
|
*
|
|
* This is used very often, keep it fast!
|
|
*/
|
|
void
|
|
getvcol(
|
|
win_T *wp,
|
|
pos_T *pos,
|
|
colnr_T *start,
|
|
colnr_T *cursor,
|
|
colnr_T *end)
|
|
{
|
|
colnr_T vcol;
|
|
char_u *ptr; // points to current char
|
|
char_u *line; // start of the line
|
|
int incr;
|
|
int head;
|
|
#ifdef FEAT_VARTABS
|
|
int *vts = wp->w_buffer->b_p_vts_array;
|
|
#endif
|
|
int ts = wp->w_buffer->b_p_ts;
|
|
int c;
|
|
chartabsize_T cts;
|
|
#ifdef FEAT_PROP_POPUP
|
|
int on_NUL = FALSE;
|
|
#endif
|
|
|
|
vcol = 0;
|
|
line = ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE);
|
|
|
|
init_chartabsize_arg(&cts, wp, pos->lnum, 0, line, line);
|
|
cts.cts_max_head_vcol = -1;
|
|
|
|
/*
|
|
* This function is used very often, do some speed optimizations.
|
|
* When 'list', 'linebreak', 'showbreak' and 'breakindent' are not set
|
|
* and there are no text properties with "text" use a simple loop.
|
|
* Also use this when 'list' is set but tabs take their normal size.
|
|
*/
|
|
if ((!wp->w_p_list || wp->w_lcs_chars.tab1 != NUL)
|
|
#ifdef FEAT_LINEBREAK
|
|
&& !wp->w_p_lbr && *get_showbreak_value(wp) == NUL && !wp->w_p_bri
|
|
#endif
|
|
#ifdef FEAT_PROP_POPUP
|
|
&& !cts.cts_has_prop_with_text
|
|
#endif
|
|
)
|
|
{
|
|
for (;;)
|
|
{
|
|
head = 0;
|
|
c = *ptr;
|
|
// make sure we don't go past the end of the line
|
|
if (c == NUL)
|
|
{
|
|
incr = 1; // NUL at end of line only takes one column
|
|
break;
|
|
}
|
|
// A tab gets expanded, depending on the current column
|
|
if (c == TAB)
|
|
#ifdef FEAT_VARTABS
|
|
incr = tabstop_padding(vcol, ts, vts);
|
|
#else
|
|
incr = ts - (vcol % ts);
|
|
#endif
|
|
else
|
|
{
|
|
if (has_mbyte)
|
|
{
|
|
// For utf-8, if the byte is >= 0x80, need to look at
|
|
// further bytes to find the cell width.
|
|
if (enc_utf8 && c >= 0x80)
|
|
incr = utf_ptr2cells(ptr);
|
|
else
|
|
incr = g_chartab[c] & CT_CELL_MASK;
|
|
|
|
// If a double-cell char doesn't fit at the end of a line
|
|
// it wraps to the next line, it's like this char is three
|
|
// cells wide.
|
|
if (incr == 2 && wp->w_p_wrap && MB_BYTE2LEN(*ptr) > 1
|
|
&& in_win_border(wp, vcol))
|
|
{
|
|
++incr;
|
|
head = 1;
|
|
}
|
|
}
|
|
else
|
|
incr = g_chartab[c] & CT_CELL_MASK;
|
|
}
|
|
|
|
char_u *next_ptr = ptr + (*mb_ptr2len)(ptr);
|
|
if (next_ptr - line > pos->col) // character at pos->col
|
|
break;
|
|
|
|
vcol += incr;
|
|
ptr = next_ptr;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (;;)
|
|
{
|
|
// A tab gets expanded, depending on the current column.
|
|
// Other things also take up space.
|
|
head = 0;
|
|
incr = win_lbr_chartabsize(&cts, &head);
|
|
// make sure we don't go past the end of the line
|
|
if (*cts.cts_ptr == NUL)
|
|
{
|
|
incr = 1; // NUL at end of line only takes one column
|
|
#ifdef FEAT_PROP_POPUP
|
|
if (cts.cts_cur_text_width > 0)
|
|
incr = cts.cts_cur_text_width;
|
|
on_NUL = TRUE;
|
|
#endif
|
|
break;
|
|
}
|
|
#ifdef FEAT_PROP_POPUP
|
|
if (cursor == &wp->w_virtcol && cts.cts_ptr == cts.cts_line)
|
|
// do not count the virtual text above for w_curswant
|
|
wp->w_virtcol_first_char = cts.cts_first_char;
|
|
#endif
|
|
|
|
char_u *next_ptr = cts.cts_ptr + (*mb_ptr2len)(cts.cts_ptr);
|
|
if (next_ptr - line > pos->col) // character at pos->col
|
|
break;
|
|
|
|
cts.cts_vcol += incr;
|
|
cts.cts_ptr = next_ptr;
|
|
}
|
|
vcol = cts.cts_vcol;
|
|
ptr = cts.cts_ptr;
|
|
}
|
|
clear_chartabsize_arg(&cts);
|
|
|
|
if (*ptr == NUL && pos->col < MAXCOL && pos->col > ptr - line)
|
|
pos->col = ptr - line;
|
|
|
|
if (start != NULL)
|
|
*start = vcol + head;
|
|
if (end != NULL)
|
|
*end = vcol + incr - 1;
|
|
if (cursor != NULL)
|
|
{
|
|
if (*ptr == TAB
|
|
&& (State & MODE_NORMAL)
|
|
&& !wp->w_p_list
|
|
&& !virtual_active()
|
|
&& !(VIsual_active
|
|
&& (*p_sel == 'e' || LTOREQ_POS(*pos, VIsual)))
|
|
)
|
|
*cursor = vcol + incr - 1; // cursor at end
|
|
else
|
|
{
|
|
#ifdef FEAT_PROP_POPUP
|
|
// in Insert mode, if "start_incl" is true the text gets inserted
|
|
// after the virtual text, thus add its width
|
|
if (((State & MODE_INSERT) == 0 || cts.cts_start_incl) && !on_NUL)
|
|
// cursor is after inserted text, unless on the NUL
|
|
vcol += cts.cts_cur_text_width;
|
|
else
|
|
// insertion also happens after the "above" virtual text
|
|
vcol += cts.cts_first_char;
|
|
#endif
|
|
*cursor = vcol + head; // cursor at start
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Get virtual cursor column in the current window, pretending 'list' is off.
|
|
*/
|
|
colnr_T
|
|
getvcol_nolist(pos_T *posp)
|
|
{
|
|
int list_save = curwin->w_p_list;
|
|
colnr_T vcol;
|
|
|
|
curwin->w_p_list = FALSE;
|
|
if (posp->coladd)
|
|
getvvcol(curwin, posp, NULL, &vcol, NULL);
|
|
else
|
|
getvcol(curwin, posp, NULL, &vcol, NULL);
|
|
curwin->w_p_list = list_save;
|
|
return vcol;
|
|
}
|
|
|
|
/*
|
|
* Get virtual column in virtual mode.
|
|
*/
|
|
void
|
|
getvvcol(
|
|
win_T *wp,
|
|
pos_T *pos,
|
|
colnr_T *start,
|
|
colnr_T *cursor,
|
|
colnr_T *end)
|
|
{
|
|
colnr_T col;
|
|
colnr_T coladd;
|
|
colnr_T endadd;
|
|
char_u *ptr;
|
|
|
|
if (virtual_active())
|
|
{
|
|
// For virtual mode, only want one value
|
|
getvcol(wp, pos, &col, NULL, NULL);
|
|
|
|
coladd = pos->coladd;
|
|
endadd = 0;
|
|
// Cannot put the cursor on part of a wide character.
|
|
ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE);
|
|
if (pos->col < ml_get_buf_len(wp->w_buffer, pos->lnum))
|
|
{
|
|
int c = (*mb_ptr2char)(ptr + pos->col);
|
|
|
|
if (c != TAB && vim_isprintc(c))
|
|
{
|
|
endadd = (colnr_T)(char2cells(c) - 1);
|
|
if (coladd > endadd) // past end of line
|
|
endadd = 0;
|
|
else
|
|
coladd = 0;
|
|
}
|
|
}
|
|
col += coladd;
|
|
if (start != NULL)
|
|
*start = col;
|
|
if (cursor != NULL)
|
|
*cursor = col;
|
|
if (end != NULL)
|
|
*end = col + endadd;
|
|
}
|
|
else
|
|
getvcol(wp, pos, start, cursor, end);
|
|
}
|
|
|
|
/*
|
|
* Get the leftmost and rightmost virtual column of pos1 and pos2.
|
|
* Used for Visual block mode.
|
|
*/
|
|
void
|
|
getvcols(
|
|
win_T *wp,
|
|
pos_T *pos1,
|
|
pos_T *pos2,
|
|
colnr_T *left,
|
|
colnr_T *right)
|
|
{
|
|
colnr_T from1, from2, to1, to2;
|
|
|
|
if (LT_POSP(pos1, pos2))
|
|
{
|
|
getvvcol(wp, pos1, &from1, NULL, &to1);
|
|
getvvcol(wp, pos2, &from2, NULL, &to2);
|
|
}
|
|
else
|
|
{
|
|
getvvcol(wp, pos2, &from1, NULL, &to1);
|
|
getvvcol(wp, pos1, &from2, NULL, &to2);
|
|
}
|
|
if (from2 < from1)
|
|
*left = from2;
|
|
else
|
|
*left = from1;
|
|
if (to2 > to1)
|
|
{
|
|
if (*p_sel == 'e' && from2 - 1 >= to1)
|
|
*right = from2 - 1;
|
|
else
|
|
*right = to2;
|
|
}
|
|
else
|
|
*right = to1;
|
|
}
|
|
|
|
/*
|
|
* Skip over ' ' and '\t'.
|
|
*/
|
|
char_u *
|
|
skipwhite(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (VIM_ISWHITE(*p))
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
#if defined(FEAT_EVAL) || defined(PROTO)
|
|
/*
|
|
* skip over ' ', '\t' and '\n'.
|
|
*/
|
|
char_u *
|
|
skipwhite_and_nl(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (VIM_ISWHITE(*p) || *p == NL)
|
|
++p;
|
|
return p;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* getwhitecols: return the number of whitespace
|
|
* columns (bytes) at the start of a given line
|
|
*/
|
|
int
|
|
getwhitecols_curline(void)
|
|
{
|
|
return getwhitecols(ml_get_curline());
|
|
}
|
|
|
|
int
|
|
getwhitecols(char_u *p)
|
|
{
|
|
return skipwhite(p) - p;
|
|
}
|
|
|
|
/*
|
|
* skip over digits
|
|
*/
|
|
char_u *
|
|
skipdigits(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (VIM_ISDIGIT(*p)) // skip to next non-digit
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
#if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) || defined(PROTO)
|
|
/*
|
|
* skip over binary digits
|
|
*/
|
|
char_u *
|
|
skipbin(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (vim_isbdigit(*p)) // skip to next non-digit
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* skip over digits and hex characters
|
|
*/
|
|
char_u *
|
|
skiphex(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (vim_isxdigit(*p)) // skip to next non-digit
|
|
++p;
|
|
return p;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* skip to bin digit (or NUL after the string)
|
|
*/
|
|
char_u *
|
|
skiptobin(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (*p != NUL && !vim_isbdigit(*p)) // skip to next digit
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* skip to digit (or NUL after the string)
|
|
*/
|
|
char_u *
|
|
skiptodigit(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (*p != NUL && !VIM_ISDIGIT(*p)) // skip to next digit
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* skip to hex character (or NUL after the string)
|
|
*/
|
|
char_u *
|
|
skiptohex(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (*p != NUL && !vim_isxdigit(*p)) // skip to next digit
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* Variant of isdigit() that can handle characters > 0x100.
|
|
* We don't use isdigit() here, because on some systems it also considers
|
|
* superscript 1 to be a digit.
|
|
* Use the VIM_ISDIGIT() macro for simple arguments.
|
|
*/
|
|
int
|
|
vim_isdigit(int c)
|
|
{
|
|
return (c >= '0' && c <= '9');
|
|
}
|
|
|
|
/*
|
|
* Variant of isxdigit() that can handle characters > 0x100.
|
|
* We don't use isxdigit() here, because on some systems it also considers
|
|
* superscript 1 to be a digit.
|
|
*/
|
|
int
|
|
vim_isxdigit(int c)
|
|
{
|
|
return (c >= '0' && c <= '9')
|
|
|| (c >= 'a' && c <= 'f')
|
|
|| (c >= 'A' && c <= 'F');
|
|
}
|
|
|
|
/*
|
|
* Corollary of vim_isdigit and vim_isxdigit() that can handle
|
|
* characters > 0x100.
|
|
*/
|
|
int
|
|
vim_isbdigit(int c)
|
|
{
|
|
return (c == '0' || c == '1');
|
|
}
|
|
|
|
static int
|
|
vim_isodigit(int c)
|
|
{
|
|
return (c >= '0' && c <= '7');
|
|
}
|
|
|
|
/*
|
|
* Vim's own character class functions. These exist because many library
|
|
* islower()/toupper() etc. do not work properly: they crash when used with
|
|
* invalid values or can't handle latin1 when the locale is C.
|
|
* Speed is most important here.
|
|
*/
|
|
#define LATIN1LOWER 'l'
|
|
#define LATIN1UPPER 'U'
|
|
|
|
static char_u latin1flags[257] = " UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll";
|
|
static char_u latin1upper[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xf7\xd8\xd9\xda\xdb\xdc\xdd\xde\xff";
|
|
static char_u latin1lower[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xd7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff";
|
|
|
|
int
|
|
vim_islower(int c)
|
|
{
|
|
if (c <= '@')
|
|
return FALSE;
|
|
if (c >= 0x80)
|
|
{
|
|
if (enc_utf8)
|
|
return utf_islower(c);
|
|
if (c >= 0x100)
|
|
{
|
|
#ifdef HAVE_ISWLOWER
|
|
if (has_mbyte)
|
|
return iswlower(c);
|
|
#endif
|
|
// islower() can't handle these chars and may crash
|
|
return FALSE;
|
|
}
|
|
if (enc_latin1like)
|
|
return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER;
|
|
}
|
|
return SAFE_islower(c);
|
|
}
|
|
|
|
int
|
|
vim_isupper(int c)
|
|
{
|
|
if (c <= '@')
|
|
return FALSE;
|
|
if (c >= 0x80)
|
|
{
|
|
if (enc_utf8)
|
|
return utf_isupper(c);
|
|
if (c >= 0x100)
|
|
{
|
|
#ifdef HAVE_ISWUPPER
|
|
if (has_mbyte)
|
|
return iswupper(c);
|
|
#endif
|
|
// islower() can't handle these chars and may crash
|
|
return FALSE;
|
|
}
|
|
if (enc_latin1like)
|
|
return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER;
|
|
}
|
|
return SAFE_isupper(c);
|
|
}
|
|
|
|
int
|
|
vim_isalpha(int c)
|
|
{
|
|
return vim_islower(c) || vim_isupper(c);
|
|
}
|
|
|
|
int
|
|
vim_toupper(int c)
|
|
{
|
|
if (c <= '@')
|
|
return c;
|
|
if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII))
|
|
{
|
|
if (enc_utf8)
|
|
return utf_toupper(c);
|
|
if (c >= 0x100)
|
|
{
|
|
#ifdef HAVE_TOWUPPER
|
|
if (has_mbyte)
|
|
return towupper(c);
|
|
#endif
|
|
// toupper() can't handle these chars and may crash
|
|
return c;
|
|
}
|
|
if (enc_latin1like)
|
|
return latin1upper[c];
|
|
}
|
|
if (c < 0x80 && (cmp_flags & CMP_KEEPASCII))
|
|
return TOUPPER_ASC(c);
|
|
return TOUPPER_LOC(c);
|
|
}
|
|
|
|
int
|
|
vim_tolower(int c)
|
|
{
|
|
if (c <= '@')
|
|
return c;
|
|
if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII))
|
|
{
|
|
if (enc_utf8)
|
|
return utf_tolower(c);
|
|
if (c >= 0x100)
|
|
{
|
|
#ifdef HAVE_TOWLOWER
|
|
if (has_mbyte)
|
|
return towlower(c);
|
|
#endif
|
|
// tolower() can't handle these chars and may crash
|
|
return c;
|
|
}
|
|
if (enc_latin1like)
|
|
return latin1lower[c];
|
|
}
|
|
if (c < 0x80 && (cmp_flags & CMP_KEEPASCII))
|
|
return TOLOWER_ASC(c);
|
|
return TOLOWER_LOC(c);
|
|
}
|
|
|
|
/*
|
|
* skiptowhite: skip over text until ' ' or '\t' or NUL.
|
|
*/
|
|
char_u *
|
|
skiptowhite(char_u *p)
|
|
{
|
|
while (*p != ' ' && *p != '\t' && *p != NUL)
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* skiptowhite_esc: Like skiptowhite(), but also skip escaped chars
|
|
*/
|
|
char_u *
|
|
skiptowhite_esc(char_u *p)
|
|
{
|
|
while (*p != ' ' && *p != '\t' && *p != NUL)
|
|
{
|
|
if ((*p == '\\' || *p == Ctrl_V) && *(p + 1) != NUL)
|
|
++p;
|
|
++p;
|
|
}
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* Get a number from a string and skip over it.
|
|
* Note: the argument is a pointer to a char_u pointer!
|
|
*/
|
|
long
|
|
getdigits(char_u **pp)
|
|
{
|
|
char_u *p;
|
|
long retval;
|
|
|
|
p = *pp;
|
|
retval = atol((char *)p);
|
|
if (*p == '-') // skip negative sign
|
|
++p;
|
|
p = skipdigits(p); // skip to next non-digit
|
|
*pp = p;
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* Like getdigits() but allow for embedded single quotes.
|
|
*/
|
|
long
|
|
getdigits_quoted(char_u **pp)
|
|
{
|
|
char_u *p = *pp;
|
|
long retval = 0;
|
|
|
|
if (*p == '-')
|
|
++p;
|
|
while (VIM_ISDIGIT(*p))
|
|
{
|
|
if (retval >= LONG_MAX / 10 - 10)
|
|
retval = LONG_MAX;
|
|
else
|
|
retval = retval * 10 - '0' + *p;
|
|
++p;
|
|
if (in_vim9script() && *p == '\'' && VIM_ISDIGIT(p[1]))
|
|
++p;
|
|
}
|
|
if (**pp == '-')
|
|
{
|
|
if (retval == LONG_MAX)
|
|
retval = LONG_MIN;
|
|
else
|
|
retval = -retval;
|
|
}
|
|
*pp = p;
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if "lbuf" is empty or only contains blanks.
|
|
*/
|
|
int
|
|
vim_isblankline(char_u *lbuf)
|
|
{
|
|
char_u *p;
|
|
|
|
p = skipwhite(lbuf);
|
|
return (*p == NUL || *p == '\r' || *p == '\n');
|
|
}
|
|
|
|
/*
|
|
* Convert a string into a long and/or unsigned long, taking care of
|
|
* hexadecimal, octal, and binary numbers. Accepts a '-' sign.
|
|
* If "prep" is not NULL, returns a flag to indicate the type of the number:
|
|
* 0 decimal
|
|
* '0' octal
|
|
* 'O' octal
|
|
* 'o' octal
|
|
* 'B' bin
|
|
* 'b' bin
|
|
* 'X' hex
|
|
* 'x' hex
|
|
* If "len" is not NULL, the length of the number in characters is returned.
|
|
* If "nptr" is not NULL, the signed result is returned in it.
|
|
* If "unptr" is not NULL, the unsigned result is returned in it.
|
|
* If "what" contains STR2NR_BIN recognize binary numbers
|
|
* If "what" contains STR2NR_OCT recognize octal numbers
|
|
* If "what" contains STR2NR_HEX recognize hex numbers
|
|
* If "what" contains STR2NR_FORCE always assume bin/oct/hex.
|
|
* If "what" contains STR2NR_QUOTE ignore embedded single quotes
|
|
* If maxlen > 0, check at a maximum maxlen chars.
|
|
* If strict is TRUE, check the number strictly. return *len = 0 if fail.
|
|
*/
|
|
void
|
|
vim_str2nr(
|
|
char_u *start,
|
|
int *prep, // return: type of number 0 = decimal, 'x'
|
|
// or 'X' is hex, '0', 'o' or 'O' is octal,
|
|
// 'b' or 'B' is bin
|
|
int *len, // return: detected length of number
|
|
int what, // what numbers to recognize
|
|
varnumber_T *nptr, // return: signed result
|
|
uvarnumber_T *unptr, // return: unsigned result
|
|
int maxlen, // max length of string to check
|
|
int strict, // check strictly
|
|
int *overflow) // when not NULL set to TRUE for overflow
|
|
{
|
|
char_u *ptr = start;
|
|
int pre = 0; // default is decimal
|
|
int negative = FALSE;
|
|
uvarnumber_T un = 0;
|
|
int n;
|
|
|
|
if (len != NULL)
|
|
*len = 0;
|
|
|
|
if (ptr[0] == '-')
|
|
{
|
|
negative = TRUE;
|
|
++ptr;
|
|
}
|
|
|
|
// Recognize hex, octal, and bin.
|
|
if (ptr[0] == '0' && ptr[1] != '8' && ptr[1] != '9'
|
|
&& (maxlen == 0 || maxlen > 1))
|
|
{
|
|
pre = ptr[1];
|
|
if ((what & STR2NR_HEX)
|
|
&& (pre == 'X' || pre == 'x') && vim_isxdigit(ptr[2])
|
|
&& (maxlen == 0 || maxlen > 2))
|
|
// hexadecimal
|
|
ptr += 2;
|
|
else if ((what & STR2NR_BIN)
|
|
&& (pre == 'B' || pre == 'b') && vim_isbdigit(ptr[2])
|
|
&& (maxlen == 0 || maxlen > 2))
|
|
// binary
|
|
ptr += 2;
|
|
else if ((what & STR2NR_OOCT)
|
|
&& (pre == 'O' || pre == 'o') && vim_isodigit(ptr[2])
|
|
&& (maxlen == 0 || maxlen > 2))
|
|
// octal with prefix "0o"
|
|
ptr += 2;
|
|
else
|
|
{
|
|
// decimal or octal, default is decimal
|
|
pre = 0;
|
|
if (what & STR2NR_OCT)
|
|
{
|
|
// Don't interpret "0", "08" or "0129" as octal.
|
|
for (n = 1; n != maxlen && VIM_ISDIGIT(ptr[n]); ++n)
|
|
{
|
|
if (ptr[n] > '7')
|
|
{
|
|
pre = 0; // can't be octal
|
|
break;
|
|
}
|
|
pre = '0'; // assume octal
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Do the conversion manually to avoid sscanf() quirks.
|
|
n = 1;
|
|
if (pre == 'B' || pre == 'b'
|
|
|| ((what & STR2NR_BIN) && (what & STR2NR_FORCE)))
|
|
{
|
|
// bin
|
|
if (pre != 0)
|
|
n += 2; // skip over "0b"
|
|
while ('0' <= *ptr && *ptr <= '1')
|
|
{
|
|
// avoid ubsan error for overflow
|
|
if (un <= UVARNUM_MAX / 2)
|
|
un = 2 * un + (uvarnumber_T)(*ptr - '0');
|
|
else
|
|
{
|
|
un = UVARNUM_MAX;
|
|
if (overflow != NULL)
|
|
*overflow = TRUE;
|
|
}
|
|
++ptr;
|
|
if (n++ == maxlen)
|
|
break;
|
|
if ((what & STR2NR_QUOTE) && *ptr == '\''
|
|
&& '0' <= ptr[1] && ptr[1] <= '1')
|
|
{
|
|
++ptr;
|
|
if (n++ == maxlen)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else if (pre == 'O' || pre == 'o' ||
|
|
pre == '0' || ((what & STR2NR_OCT) && (what & STR2NR_FORCE)))
|
|
{
|
|
// octal
|
|
if (pre != 0 && pre != '0')
|
|
n += 2; // skip over "0o"
|
|
while ('0' <= *ptr && *ptr <= '7')
|
|
{
|
|
// avoid ubsan error for overflow
|
|
if (un <= UVARNUM_MAX / 8)
|
|
un = 8 * un + (uvarnumber_T)(*ptr - '0');
|
|
else
|
|
{
|
|
un = UVARNUM_MAX;
|
|
if (overflow != NULL)
|
|
*overflow = TRUE;
|
|
}
|
|
++ptr;
|
|
if (n++ == maxlen)
|
|
break;
|
|
if ((what & STR2NR_QUOTE) && *ptr == '\''
|
|
&& '0' <= ptr[1] && ptr[1] <= '7')
|
|
{
|
|
++ptr;
|
|
if (n++ == maxlen)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else if (pre != 0 || ((what & STR2NR_HEX) && (what & STR2NR_FORCE)))
|
|
{
|
|
// hex
|
|
if (pre != 0)
|
|
n += 2; // skip over "0x"
|
|
while (vim_isxdigit(*ptr))
|
|
{
|
|
// avoid ubsan error for overflow
|
|
if (un <= UVARNUM_MAX / 16)
|
|
un = 16 * un + (uvarnumber_T)hex2nr(*ptr);
|
|
else
|
|
{
|
|
un = UVARNUM_MAX;
|
|
if (overflow != NULL)
|
|
*overflow = TRUE;
|
|
}
|
|
++ptr;
|
|
if (n++ == maxlen)
|
|
break;
|
|
if ((what & STR2NR_QUOTE) && *ptr == '\'' && vim_isxdigit(ptr[1]))
|
|
{
|
|
++ptr;
|
|
if (n++ == maxlen)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// decimal
|
|
while (VIM_ISDIGIT(*ptr))
|
|
{
|
|
uvarnumber_T digit = (uvarnumber_T)(*ptr - '0');
|
|
|
|
// avoid ubsan error for overflow
|
|
if (un < UVARNUM_MAX / 10
|
|
|| (un == UVARNUM_MAX / 10 && digit <= UVARNUM_MAX % 10))
|
|
un = 10 * un + digit;
|
|
else
|
|
{
|
|
un = UVARNUM_MAX;
|
|
if (overflow != NULL)
|
|
*overflow = TRUE;
|
|
}
|
|
++ptr;
|
|
if (n++ == maxlen)
|
|
break;
|
|
if ((what & STR2NR_QUOTE) && *ptr == '\'' && VIM_ISDIGIT(ptr[1]))
|
|
{
|
|
++ptr;
|
|
if (n++ == maxlen)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check for an alphanumeric character immediately following, that is
|
|
// most likely a typo.
|
|
if (strict && n - 1 != maxlen && ASCII_ISALNUM(*ptr))
|
|
return;
|
|
|
|
if (prep != NULL)
|
|
*prep = pre;
|
|
if (len != NULL)
|
|
*len = (int)(ptr - start);
|
|
if (nptr != NULL)
|
|
{
|
|
if (negative) // account for leading '-' for decimal numbers
|
|
{
|
|
// avoid ubsan error for overflow
|
|
if (un > VARNUM_MAX)
|
|
{
|
|
*nptr = VARNUM_MIN;
|
|
if (overflow != NULL)
|
|
*overflow = TRUE;
|
|
}
|
|
else
|
|
*nptr = -(varnumber_T)un;
|
|
}
|
|
else
|
|
{
|
|
// prevent a large unsigned number to become negative
|
|
if (un > VARNUM_MAX)
|
|
{
|
|
un = VARNUM_MAX;
|
|
if (overflow != NULL)
|
|
*overflow = TRUE;
|
|
}
|
|
*nptr = (varnumber_T)un;
|
|
}
|
|
}
|
|
if (unptr != NULL)
|
|
*unptr = un;
|
|
}
|
|
|
|
/*
|
|
* Return the value of a single hex character.
|
|
* Only valid when the argument is '0' - '9', 'A' - 'F' or 'a' - 'f'.
|
|
*/
|
|
int
|
|
hex2nr(int c)
|
|
{
|
|
if (c >= 'a' && c <= 'f')
|
|
return c - 'a' + 10;
|
|
if (c >= 'A' && c <= 'F')
|
|
return c - 'A' + 10;
|
|
return c - '0';
|
|
}
|
|
|
|
/*
|
|
* Convert two hex characters to a byte.
|
|
* Return -1 if one of the characters is not hex.
|
|
*/
|
|
int
|
|
hexhex2nr(char_u *p)
|
|
{
|
|
if (!vim_isxdigit(p[0]) || !vim_isxdigit(p[1]))
|
|
return -1;
|
|
return (hex2nr(p[0]) << 4) + hex2nr(p[1]);
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if "str" starts with a backslash that should be removed.
|
|
* For MS-DOS, MSWIN and OS/2 this is only done when the character after the
|
|
* backslash is not a normal file name character.
|
|
* '$' is a valid file name character, we don't remove the backslash before
|
|
* it. This means it is not possible to use an environment variable after a
|
|
* backslash. "C:\$VIM\doc" is taken literally, only "$VIM\doc" works.
|
|
* Although "\ name" is valid, the backslash in "Program\ files" must be
|
|
* removed. Assume a file name doesn't start with a space.
|
|
* For multi-byte names, never remove a backslash before a non-ascii
|
|
* character, assume that all multi-byte characters are valid file name
|
|
* characters.
|
|
*/
|
|
int
|
|
rem_backslash(char_u *str)
|
|
{
|
|
#ifdef BACKSLASH_IN_FILENAME
|
|
return (str[0] == '\\'
|
|
&& str[1] < 0x80
|
|
&& (str[1] == ' '
|
|
|| (str[1] != NUL
|
|
&& str[1] != '*'
|
|
&& str[1] != '?'
|
|
&& !vim_isfilec(str[1]))));
|
|
#else
|
|
return (str[0] == '\\' && str[1] != NUL);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Halve the number of backslashes in a file name argument.
|
|
* For MS-DOS we only do this if the character after the backslash
|
|
* is not a normal file character.
|
|
*/
|
|
void
|
|
backslash_halve(char_u *p)
|
|
{
|
|
for ( ; *p; ++p)
|
|
if (rem_backslash(p))
|
|
STRMOVE(p, p + 1);
|
|
}
|
|
|
|
/*
|
|
* backslash_halve() plus save the result in allocated memory.
|
|
* However, returns "p" when out of memory.
|
|
*/
|
|
char_u *
|
|
backslash_halve_save(char_u *p)
|
|
{
|
|
char_u *res;
|
|
|
|
res = vim_strsave(p);
|
|
if (res == NULL)
|
|
return p;
|
|
backslash_halve(res);
|
|
return res;
|
|
}
|