Mercurial > vim
diff src/misc1.c @ 15699:2d941023bd2f v8.1.0857
patch 8.1.0857: indent functionality is not separated
commit https://github.com/vim/vim/commit/4b47162ccede0b6d9cbb9473ad870220a24fbf54
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Jan 31 13:48:09 2019 +0100
patch 8.1.0857: indent functionality is not separated
Problem: Ignore functionality is not separated.
Solution: Move indent functionality into a new file. (Yegappan Lakshmanan,
closes #3886)
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Thu, 31 Jan 2019 14:00:07 +0100 |
parents | 6f1c7e9a6393 |
children | 99ebf78686a9 |
line wrap: on
line diff
--- a/src/misc1.c +++ b/src/misc1.c @@ -702,41 +702,6 @@ get_breakindent_win( #endif -#if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT) - -/* - * Return TRUE if the string "line" starts with a word from 'cinwords'. - */ - static int -cin_is_cinword(char_u *line) -{ - char_u *cinw; - char_u *cinw_buf; - int cinw_len; - int retval = FALSE; - int len; - - cinw_len = (int)STRLEN(curbuf->b_p_cinw) + 1; - cinw_buf = alloc((unsigned)cinw_len); - if (cinw_buf != NULL) - { - line = skipwhite(line); - for (cinw = curbuf->b_p_cinw; *cinw; ) - { - len = copy_option_part(&cinw, cinw_buf, cinw_len, ","); - if (STRNCMP(line, cinw_buf, len) == 0 - && (!vim_iswordc(line[len]) || !vim_iswordc(line[len - 1]))) - { - retval = TRUE; - break; - } - } - vim_free(cinw_buf); - } - return retval; -} -#endif - /* * open_line: Add a new line below or above the current line. * @@ -5404,4317 +5369,6 @@ FullName_save( return new_fname; } -#if defined(FEAT_CINDENT) || defined(FEAT_SYN_HL) - -static char_u *skip_string(char_u *p); -static pos_T *find_start_rawstring(int ind_maxcomment); - -/* - * Find the start of a comment, not knowing if we are in a comment right now. - * Search starts at w_cursor.lnum and goes backwards. - * Return NULL when not inside a comment. - */ - static pos_T * -ind_find_start_comment(void) /* XXX */ -{ - return find_start_comment(curbuf->b_ind_maxcomment); -} - - pos_T * -find_start_comment(int ind_maxcomment) /* XXX */ -{ - pos_T *pos; - char_u *line; - char_u *p; - int cur_maxcomment = ind_maxcomment; - - for (;;) - { - pos = findmatchlimit(NULL, '*', FM_BACKWARD, cur_maxcomment); - if (pos == NULL) - break; - - /* - * Check if the comment start we found is inside a string. - * If it is then restrict the search to below this line and try again. - */ - line = ml_get(pos->lnum); - for (p = line; *p && (colnr_T)(p - line) < pos->col; ++p) - p = skip_string(p); - if ((colnr_T)(p - line) <= pos->col) - break; - cur_maxcomment = curwin->w_cursor.lnum - pos->lnum - 1; - if (cur_maxcomment <= 0) - { - pos = NULL; - break; - } - } - return pos; -} - -/* - * Find the start of a comment or raw string, not knowing if we are in a - * comment or raw string right now. - * Search starts at w_cursor.lnum and goes backwards. - * If is_raw is given and returns start of raw_string, sets it to true. - * Return NULL when not inside a comment or raw string. - * "CORS" -> Comment Or Raw String - */ - static pos_T * -ind_find_start_CORS(linenr_T *is_raw) /* XXX */ -{ - static pos_T comment_pos_copy; - pos_T *comment_pos; - pos_T *rs_pos; - - comment_pos = find_start_comment(curbuf->b_ind_maxcomment); - if (comment_pos != NULL) - { - /* Need to make a copy of the static pos in findmatchlimit(), - * calling find_start_rawstring() may change it. */ - comment_pos_copy = *comment_pos; - comment_pos = &comment_pos_copy; - } - rs_pos = find_start_rawstring(curbuf->b_ind_maxcomment); - - /* If comment_pos is before rs_pos the raw string is inside the comment. - * If rs_pos is before comment_pos the comment is inside the raw string. */ - if (comment_pos == NULL || (rs_pos != NULL - && LT_POS(*rs_pos, *comment_pos))) - { - if (is_raw != NULL && rs_pos != NULL) - *is_raw = rs_pos->lnum; - return rs_pos; - } - return comment_pos; -} - -/* - * Find the start of a raw string, not knowing if we are in one right now. - * Search starts at w_cursor.lnum and goes backwards. - * Return NULL when not inside a raw string. - */ - static pos_T * -find_start_rawstring(int ind_maxcomment) /* XXX */ -{ - pos_T *pos; - char_u *line; - char_u *p; - int cur_maxcomment = ind_maxcomment; - - for (;;) - { - pos = findmatchlimit(NULL, 'R', FM_BACKWARD, cur_maxcomment); - if (pos == NULL) - break; - - /* - * Check if the raw string start we found is inside a string. - * If it is then restrict the search to below this line and try again. - */ - line = ml_get(pos->lnum); - for (p = line; *p && (colnr_T)(p - line) < pos->col; ++p) - p = skip_string(p); - if ((colnr_T)(p - line) <= pos->col) - break; - cur_maxcomment = curwin->w_cursor.lnum - pos->lnum - 1; - if (cur_maxcomment <= 0) - { - pos = NULL; - break; - } - } - return pos; -} - -/* - * Skip to the end of a "string" and a 'c' character. - * If there is no string or character, return argument unmodified. - */ - static char_u * -skip_string(char_u *p) -{ - int i; - - /* - * We loop, because strings may be concatenated: "date""time". - */ - for ( ; ; ++p) - { - if (p[0] == '\'') /* 'c' or '\n' or '\000' */ - { - if (!p[1]) /* ' at end of line */ - break; - i = 2; - if (p[1] == '\\') /* '\n' or '\000' */ - { - ++i; - while (vim_isdigit(p[i - 1])) /* '\000' */ - ++i; - } - if (p[i] == '\'') /* check for trailing ' */ - { - p += i; - continue; - } - } - else if (p[0] == '"') /* start of string */ - { - for (++p; p[0]; ++p) - { - if (p[0] == '\\' && p[1] != NUL) - ++p; - else if (p[0] == '"') /* end of string */ - break; - } - if (p[0] == '"') - continue; /* continue for another string */ - } - else if (p[0] == 'R' && p[1] == '"') - { - /* Raw string: R"[delim](...)[delim]" */ - char_u *delim = p + 2; - char_u *paren = vim_strchr(delim, '('); - - if (paren != NULL) - { - size_t delim_len = paren - delim; - - for (p += 3; *p; ++p) - if (p[0] == ')' && STRNCMP(p + 1, delim, delim_len) == 0 - && p[delim_len + 1] == '"') - { - p += delim_len + 1; - break; - } - if (p[0] == '"') - continue; /* continue for another string */ - } - } - break; /* no string found */ - } - if (!*p) - --p; /* backup from NUL */ - return p; -} -#endif /* FEAT_CINDENT || FEAT_SYN_HL */ - -#if defined(FEAT_CINDENT) || defined(PROTO) - -/* - * Do C or expression indenting on the current line. - */ - void -do_c_expr_indent(void) -{ -# ifdef FEAT_EVAL - if (*curbuf->b_p_inde != NUL) - fixthisline(get_expr_indent); - else -# endif - fixthisline(get_c_indent); -} - -/* Find result cache for cpp_baseclass */ -typedef struct { - int found; - lpos_T lpos; -} cpp_baseclass_cache_T; - -/* - * Functions for C-indenting. - * Most of this originally comes from Eric Fischer. - */ -/* - * Below "XXX" means that this function may unlock the current line. - */ - -static int cin_isdefault(char_u *); -static int cin_ispreproc(char_u *); -static int cin_iscomment(char_u *); -static int cin_islinecomment(char_u *); -static int cin_isterminated(char_u *, int, int); -static int cin_iselse(char_u *); -static int cin_ends_in(char_u *, char_u *, char_u *); -static int cin_starts_with(char_u *s, char *word); -static pos_T *find_match_paren(int); -static pos_T *find_match_char(int c, int ind_maxparen); -static int find_last_paren(char_u *l, int start, int end); -static int find_match(int lookfor, linenr_T ourscope); - -/* - * Skip over white space and C comments within the line. - * Also skip over Perl/shell comments if desired. - */ - static char_u * -cin_skipcomment(char_u *s) -{ - while (*s) - { - char_u *prev_s = s; - - s = skipwhite(s); - - /* Perl/shell # comment comment continues until eol. Require a space - * before # to avoid recognizing $#array. */ - if (curbuf->b_ind_hash_comment != 0 && s != prev_s && *s == '#') - { - s += STRLEN(s); - break; - } - if (*s != '/') - break; - ++s; - if (*s == '/') /* slash-slash comment continues till eol */ - { - s += STRLEN(s); - break; - } - if (*s != '*') - break; - for (++s; *s; ++s) /* skip slash-star comment */ - if (s[0] == '*' && s[1] == '/') - { - s += 2; - break; - } - } - return s; -} - -/* - * Return TRUE if there is no code at *s. White space and comments are - * not considered code. - */ - static int -cin_nocode(char_u *s) -{ - return *cin_skipcomment(s) == NUL; -} - -/* - * Check previous lines for a "//" line comment, skipping over blank lines. - */ - static pos_T * -find_line_comment(void) /* XXX */ -{ - static pos_T pos; - char_u *line; - char_u *p; - - pos = curwin->w_cursor; - while (--pos.lnum > 0) - { - line = ml_get(pos.lnum); - p = skipwhite(line); - if (cin_islinecomment(p)) - { - pos.col = (int)(p - line); - return &pos; - } - if (*p != NUL) - break; - } - return NULL; -} - -/* - * Return TRUE if "text" starts with "key:". - */ - static int -cin_has_js_key(char_u *text) -{ - char_u *s = skipwhite(text); - int quote = -1; - - if (*s == '\'' || *s == '"') - { - /* can be 'key': or "key": */ - quote = *s; - ++s; - } - if (!vim_isIDc(*s)) /* need at least one ID character */ - return FALSE; - - while (vim_isIDc(*s)) - ++s; - if (*s == quote) - ++s; - - s = cin_skipcomment(s); - - /* "::" is not a label, it's C++ */ - return (*s == ':' && s[1] != ':'); -} - -/* - * Check if string matches "label:"; move to character after ':' if true. - * "*s" must point to the start of the label, if there is one. - */ - static int -cin_islabel_skip(char_u **s) -{ - if (!vim_isIDc(**s)) /* need at least one ID character */ - return FALSE; - - while (vim_isIDc(**s)) - (*s)++; - - *s = cin_skipcomment(*s); - - /* "::" is not a label, it's C++ */ - return (**s == ':' && *++*s != ':'); -} - -/* - * Recognize a label: "label:". - * Note: curwin->w_cursor must be where we are looking for the label. - */ - int -cin_islabel(void) /* XXX */ -{ - char_u *s; - - s = cin_skipcomment(ml_get_curline()); - - /* - * Exclude "default" from labels, since it should be indented - * like a switch label. Same for C++ scope declarations. - */ - if (cin_isdefault(s)) - return FALSE; - if (cin_isscopedecl(s)) - return FALSE; - - if (cin_islabel_skip(&s)) - { - /* - * Only accept a label if the previous line is terminated or is a case - * label. - */ - pos_T cursor_save; - pos_T *trypos; - char_u *line; - - cursor_save = curwin->w_cursor; - while (curwin->w_cursor.lnum > 1) - { - --curwin->w_cursor.lnum; - - /* - * If we're in a comment or raw string now, skip to the start of - * it. - */ - curwin->w_cursor.col = 0; - if ((trypos = ind_find_start_CORS(NULL)) != NULL) /* XXX */ - curwin->w_cursor = *trypos; - - line = ml_get_curline(); - if (cin_ispreproc(line)) /* ignore #defines, #if, etc. */ - continue; - if (*(line = cin_skipcomment(line)) == NUL) - continue; - - curwin->w_cursor = cursor_save; - if (cin_isterminated(line, TRUE, FALSE) - || cin_isscopedecl(line) - || cin_iscase(line, TRUE) - || (cin_islabel_skip(&line) && cin_nocode(line))) - return TRUE; - return FALSE; - } - curwin->w_cursor = cursor_save; - return TRUE; /* label at start of file??? */ - } - return FALSE; -} - -/* - * Recognize structure initialization and enumerations: - * "[typedef] [static|public|protected|private] enum" - * "[typedef] [static|public|protected|private] = {" - */ - static int -cin_isinit(void) -{ - char_u *s; - static char *skip[] = {"static", "public", "protected", "private"}; - - s = cin_skipcomment(ml_get_curline()); - - if (cin_starts_with(s, "typedef")) - s = cin_skipcomment(s + 7); - - for (;;) - { - int i, l; - - for (i = 0; i < (int)(sizeof(skip) / sizeof(char *)); ++i) - { - l = (int)strlen(skip[i]); - if (cin_starts_with(s, skip[i])) - { - s = cin_skipcomment(s + l); - l = 0; - break; - } - } - if (l != 0) - break; - } - - if (cin_starts_with(s, "enum")) - return TRUE; - - if (cin_ends_in(s, (char_u *)"=", (char_u *)"{")) - return TRUE; - - return FALSE; -} - -/* - * Recognize a switch label: "case .*:" or "default:". - */ - int -cin_iscase( - char_u *s, - int strict) /* Allow relaxed check of case statement for JS */ -{ - s = cin_skipcomment(s); - if (cin_starts_with(s, "case")) - { - for (s += 4; *s; ++s) - { - s = cin_skipcomment(s); - if (*s == ':') - { - if (s[1] == ':') /* skip over "::" for C++ */ - ++s; - else - return TRUE; - } - if (*s == '\'' && s[1] && s[2] == '\'') - s += 2; /* skip over ':' */ - else if (*s == '/' && (s[1] == '*' || s[1] == '/')) - return FALSE; /* stop at comment */ - else if (*s == '"') - { - /* JS etc. */ - if (strict) - return FALSE; /* stop at string */ - else - return TRUE; - } - } - return FALSE; - } - - if (cin_isdefault(s)) - return TRUE; - return FALSE; -} - -/* - * Recognize a "default" switch label. - */ - static int -cin_isdefault(char_u *s) -{ - return (STRNCMP(s, "default", 7) == 0 - && *(s = cin_skipcomment(s + 7)) == ':' - && s[1] != ':'); -} - -/* - * Recognize a "public/private/protected" scope declaration label. - */ - int -cin_isscopedecl(char_u *s) -{ - int i; - - s = cin_skipcomment(s); - if (STRNCMP(s, "public", 6) == 0) - i = 6; - else if (STRNCMP(s, "protected", 9) == 0) - i = 9; - else if (STRNCMP(s, "private", 7) == 0) - i = 7; - else - return FALSE; - return (*(s = cin_skipcomment(s + i)) == ':' && s[1] != ':'); -} - -/* Maximum number of lines to search back for a "namespace" line. */ -#define FIND_NAMESPACE_LIM 20 - -/* - * Recognize a "namespace" scope declaration. - */ - static int -cin_is_cpp_namespace(char_u *s) -{ - char_u *p; - int has_name = FALSE; - int has_name_start = FALSE; - - s = cin_skipcomment(s); - if (STRNCMP(s, "namespace", 9) == 0 && (s[9] == NUL || !vim_iswordc(s[9]))) - { - p = cin_skipcomment(skipwhite(s + 9)); - while (*p != NUL) - { - if (VIM_ISWHITE(*p)) - { - has_name = TRUE; /* found end of a name */ - p = cin_skipcomment(skipwhite(p)); - } - else if (*p == '{') - { - break; - } - else if (vim_iswordc(*p)) - { - has_name_start = TRUE; - if (has_name) - return FALSE; /* word character after skipping past name */ - ++p; - } - else if (p[0] == ':' && p[1] == ':' && vim_iswordc(p[2])) - { - if (!has_name_start || has_name) - return FALSE; - /* C++ 17 nested namespace */ - p += 3; - } - else - { - return FALSE; - } - } - return TRUE; - } - return FALSE; -} - -/* - * Recognize a `extern "C"` or `extern "C++"` linkage specifications. - */ - static int -cin_is_cpp_extern_c(char_u *s) -{ - char_u *p; - int has_string_literal = FALSE; - - s = cin_skipcomment(s); - if (STRNCMP(s, "extern", 6) == 0 && (s[6] == NUL || !vim_iswordc(s[6]))) - { - p = cin_skipcomment(skipwhite(s + 6)); - while (*p != NUL) - { - if (VIM_ISWHITE(*p)) - { - p = cin_skipcomment(skipwhite(p)); - } - else if (*p == '{') - { - break; - } - else if (p[0] == '"' && p[1] == 'C' && p[2] == '"') - { - if (has_string_literal) - return FALSE; - has_string_literal = TRUE; - p += 3; - } - else if (p[0] == '"' && p[1] == 'C' && p[2] == '+' && p[3] == '+' - && p[4] == '"') - { - if (has_string_literal) - return FALSE; - has_string_literal = TRUE; - p += 5; - } - else - { - return FALSE; - } - } - return has_string_literal ? TRUE : FALSE; - } - return FALSE; -} - -/* - * Return a pointer to the first non-empty non-comment character after a ':'. - * Return NULL if not found. - * case 234: a = b; - * ^ - */ - static char_u * -after_label(char_u *l) -{ - for ( ; *l; ++l) - { - if (*l == ':') - { - if (l[1] == ':') /* skip over "::" for C++ */ - ++l; - else if (!cin_iscase(l + 1, FALSE)) - break; - } - else if (*l == '\'' && l[1] && l[2] == '\'') - l += 2; /* skip over 'x' */ - } - if (*l == NUL) - return NULL; - l = cin_skipcomment(l + 1); - if (*l == NUL) - return NULL; - return l; -} - -/* - * Get indent of line "lnum", skipping a label. - * Return 0 if there is nothing after the label. - */ - static int -get_indent_nolabel (linenr_T lnum) /* XXX */ -{ - char_u *l; - pos_T fp; - colnr_T col; - char_u *p; - - l = ml_get(lnum); - p = after_label(l); - if (p == NULL) - return 0; - - fp.col = (colnr_T)(p - l); - fp.lnum = lnum; - getvcol(curwin, &fp, &col, NULL, NULL); - return (int)col; -} - -/* - * Find indent for line "lnum", ignoring any case or jump label. - * Also return a pointer to the text (after the label) in "pp". - * label: if (asdf && asdfasdf) - * ^ - */ - static int -skip_label(linenr_T lnum, char_u **pp) -{ - char_u *l; - int amount; - pos_T cursor_save; - - cursor_save = curwin->w_cursor; - curwin->w_cursor.lnum = lnum; - l = ml_get_curline(); - /* XXX */ - if (cin_iscase(l, FALSE) || cin_isscopedecl(l) || cin_islabel()) - { - amount = get_indent_nolabel(lnum); - l = after_label(ml_get_curline()); - if (l == NULL) /* just in case */ - l = ml_get_curline(); - } - else - { - amount = get_indent(); - l = ml_get_curline(); - } - *pp = l; - - curwin->w_cursor = cursor_save; - return amount; -} - -/* - * Return the indent of the first variable name after a type in a declaration. - * int a, indent of "a" - * static struct foo b, indent of "b" - * enum bla c, indent of "c" - * Returns zero when it doesn't look like a declaration. - */ - static int -cin_first_id_amount(void) -{ - char_u *line, *p, *s; - int len; - pos_T fp; - colnr_T col; - - line = ml_get_curline(); - p = skipwhite(line); - len = (int)(skiptowhite(p) - p); - if (len == 6 && STRNCMP(p, "static", 6) == 0) - { - p = skipwhite(p + 6); - len = (int)(skiptowhite(p) - p); - } - if (len == 6 && STRNCMP(p, "struct", 6) == 0) - p = skipwhite(p + 6); - else if (len == 4 && STRNCMP(p, "enum", 4) == 0) - p = skipwhite(p + 4); - else if ((len == 8 && STRNCMP(p, "unsigned", 8) == 0) - || (len == 6 && STRNCMP(p, "signed", 6) == 0)) - { - s = skipwhite(p + len); - if ((STRNCMP(s, "int", 3) == 0 && VIM_ISWHITE(s[3])) - || (STRNCMP(s, "long", 4) == 0 && VIM_ISWHITE(s[4])) - || (STRNCMP(s, "short", 5) == 0 && VIM_ISWHITE(s[5])) - || (STRNCMP(s, "char", 4) == 0 && VIM_ISWHITE(s[4]))) - p = s; - } - for (len = 0; vim_isIDc(p[len]); ++len) - ; - if (len == 0 || !VIM_ISWHITE(p[len]) || cin_nocode(p)) - return 0; - - p = skipwhite(p + len); - fp.lnum = curwin->w_cursor.lnum; - fp.col = (colnr_T)(p - line); - getvcol(curwin, &fp, &col, NULL, NULL); - return (int)col; -} - -/* - * Return the indent of the first non-blank after an equal sign. - * char *foo = "here"; - * Return zero if no (useful) equal sign found. - * Return -1 if the line above "lnum" ends in a backslash. - * foo = "asdf\ - * asdf\ - * here"; - */ - static int -cin_get_equal_amount(linenr_T lnum) -{ - char_u *line; - char_u *s; - colnr_T col; - pos_T fp; - - if (lnum > 1) - { - line = ml_get(lnum - 1); - if (*line != NUL && line[STRLEN(line) - 1] == '\\') - return -1; - } - - line = s = ml_get(lnum); - while (*s != NUL && vim_strchr((char_u *)"=;{}\"'", *s) == NULL) - { - if (cin_iscomment(s)) /* ignore comments */ - s = cin_skipcomment(s); - else - ++s; - } - if (*s != '=') - return 0; - - s = skipwhite(s + 1); - if (cin_nocode(s)) - return 0; - - if (*s == '"') /* nice alignment for continued strings */ - ++s; - - fp.lnum = lnum; - fp.col = (colnr_T)(s - line); - getvcol(curwin, &fp, &col, NULL, NULL); - return (int)col; -} - -/* - * Recognize a preprocessor statement: Any line that starts with '#'. - */ - static int -cin_ispreproc(char_u *s) -{ - if (*skipwhite(s) == '#') - return TRUE; - return FALSE; -} - -/* - * Return TRUE if line "*pp" at "*lnump" is a preprocessor statement or a - * continuation line of a preprocessor statement. Decrease "*lnump" to the - * start and return the line in "*pp". - * Put the amount of indent in "*amount". - */ - static int -cin_ispreproc_cont(char_u **pp, linenr_T *lnump, int *amount) -{ - char_u *line = *pp; - linenr_T lnum = *lnump; - int retval = FALSE; - int candidate_amount = *amount; - - if (*line != NUL && line[STRLEN(line) - 1] == '\\') - candidate_amount = get_indent_lnum(lnum); - - for (;;) - { - if (cin_ispreproc(line)) - { - retval = TRUE; - *lnump = lnum; - break; - } - if (lnum == 1) - break; - line = ml_get(--lnum); - if (*line == NUL || line[STRLEN(line) - 1] != '\\') - break; - } - - if (lnum != *lnump) - *pp = ml_get(*lnump); - if (retval) - *amount = candidate_amount; - return retval; -} - -/* - * Recognize the start of a C or C++ comment. - */ - static int -cin_iscomment(char_u *p) -{ - return (p[0] == '/' && (p[1] == '*' || p[1] == '/')); -} - -/* - * Recognize the start of a "//" comment. - */ - static int -cin_islinecomment(char_u *p) -{ - return (p[0] == '/' && p[1] == '/'); -} - -/* - * Recognize a line that starts with '{' or '}', or ends with ';', ',', '{' or - * '}'. - * Don't consider "} else" a terminated line. - * If a line begins with an "else", only consider it terminated if no unmatched - * opening braces follow (handle "else { foo();" correctly). - * Return the character terminating the line (ending char's have precedence if - * both apply in order to determine initializations). - */ - static int -cin_isterminated( - char_u *s, - int incl_open, /* include '{' at the end as terminator */ - int incl_comma) /* recognize a trailing comma */ -{ - char_u found_start = 0; - unsigned n_open = 0; - int is_else = FALSE; - - s = cin_skipcomment(s); - - if (*s == '{' || (*s == '}' && !cin_iselse(s))) - found_start = *s; - - if (!found_start) - is_else = cin_iselse(s); - - while (*s) - { - /* skip over comments, "" strings and 'c'haracters */ - s = skip_string(cin_skipcomment(s)); - if (*s == '}' && n_open > 0) - --n_open; - if ((!is_else || n_open == 0) - && (*s == ';' || *s == '}' || (incl_comma && *s == ',')) - && cin_nocode(s + 1)) - return *s; - else if (*s == '{') - { - if (incl_open && cin_nocode(s + 1)) - return *s; - else - ++n_open; - } - - if (*s) - s++; - } - return found_start; -} - -/* - * Recognize the basic picture of a function declaration -- it needs to - * have an open paren somewhere and a close paren at the end of the line and - * no semicolons anywhere. - * When a line ends in a comma we continue looking in the next line. - * "sp" points to a string with the line. When looking at other lines it must - * be restored to the line. When it's NULL fetch lines here. - * "first_lnum" is where we start looking. - * "min_lnum" is the line before which we will not be looking. - */ - static int -cin_isfuncdecl( - char_u **sp, - linenr_T first_lnum, - linenr_T min_lnum) -{ - char_u *s; - linenr_T lnum = first_lnum; - linenr_T save_lnum = curwin->w_cursor.lnum; - int retval = FALSE; - pos_T *trypos; - int just_started = TRUE; - - if (sp == NULL) - s = ml_get(lnum); - else - s = *sp; - - curwin->w_cursor.lnum = lnum; - if (find_last_paren(s, '(', ')') - && (trypos = find_match_paren(curbuf->b_ind_maxparen)) != NULL) - { - lnum = trypos->lnum; - if (lnum < min_lnum) - { - curwin->w_cursor.lnum = save_lnum; - return FALSE; - } - - s = ml_get(lnum); - } - curwin->w_cursor.lnum = save_lnum; - - /* Ignore line starting with #. */ - if (cin_ispreproc(s)) - return FALSE; - - while (*s && *s != '(' && *s != ';' && *s != '\'' && *s != '"') - { - if (cin_iscomment(s)) /* ignore comments */ - s = cin_skipcomment(s); - else if (*s == ':') - { - if (*(s + 1) == ':') - s += 2; - else - /* To avoid a mistake in the following situation: - * A::A(int a, int b) - * : a(0) // <--not a function decl - * , b(0) - * {... - */ - return FALSE; - } - else - ++s; - } - if (*s != '(') - return FALSE; /* ';', ' or " before any () or no '(' */ - - while (*s && *s != ';' && *s != '\'' && *s != '"') - { - if (*s == ')' && cin_nocode(s + 1)) - { - /* ')' at the end: may have found a match - * Check for he previous line not to end in a backslash: - * #if defined(x) && \ - * defined(y) - */ - lnum = first_lnum - 1; - s = ml_get(lnum); - if (*s == NUL || s[STRLEN(s) - 1] != '\\') - retval = TRUE; - goto done; - } - if ((*s == ',' && cin_nocode(s + 1)) || s[1] == NUL || cin_nocode(s)) - { - int comma = (*s == ','); - - /* ',' at the end: continue looking in the next line. - * At the end: check for ',' in the next line, for this style: - * func(arg1 - * , arg2) */ - for (;;) - { - if (lnum >= curbuf->b_ml.ml_line_count) - break; - s = ml_get(++lnum); - if (!cin_ispreproc(s)) - break; - } - if (lnum >= curbuf->b_ml.ml_line_count) - break; - /* Require a comma at end of the line or a comma or ')' at the - * start of next line. */ - s = skipwhite(s); - if (!just_started && (!comma && *s != ',' && *s != ')')) - break; - just_started = FALSE; - } - else if (cin_iscomment(s)) /* ignore comments */ - s = cin_skipcomment(s); - else - { - ++s; - just_started = FALSE; - } - } - -done: - if (lnum != first_lnum && sp != NULL) - *sp = ml_get(first_lnum); - - return retval; -} - - static int -cin_isif(char_u *p) -{ - return (STRNCMP(p, "if", 2) == 0 && !vim_isIDc(p[2])); -} - - static int -cin_iselse( - char_u *p) -{ - if (*p == '}') /* accept "} else" */ - p = cin_skipcomment(p + 1); - return (STRNCMP(p, "else", 4) == 0 && !vim_isIDc(p[4])); -} - - static int -cin_isdo(char_u *p) -{ - return (STRNCMP(p, "do", 2) == 0 && !vim_isIDc(p[2])); -} - -/* - * Check if this is a "while" that should have a matching "do". - * We only accept a "while (condition) ;", with only white space between the - * ')' and ';'. The condition may be spread over several lines. - */ - static int -cin_iswhileofdo (char_u *p, linenr_T lnum) /* XXX */ -{ - pos_T cursor_save; - pos_T *trypos; - int retval = FALSE; - - p = cin_skipcomment(p); - if (*p == '}') /* accept "} while (cond);" */ - p = cin_skipcomment(p + 1); - if (cin_starts_with(p, "while")) - { - cursor_save = curwin->w_cursor; - curwin->w_cursor.lnum = lnum; - curwin->w_cursor.col = 0; - p = ml_get_curline(); - while (*p && *p != 'w') /* skip any '}', until the 'w' of the "while" */ - { - ++p; - ++curwin->w_cursor.col; - } - if ((trypos = findmatchlimit(NULL, 0, 0, - curbuf->b_ind_maxparen)) != NULL - && *cin_skipcomment(ml_get_pos(trypos) + 1) == ';') - retval = TRUE; - curwin->w_cursor = cursor_save; - } - return retval; -} - -/* - * Check whether in "p" there is an "if", "for" or "while" before "*poffset". - * Return 0 if there is none. - * Otherwise return !0 and update "*poffset" to point to the place where the - * string was found. - */ - static int -cin_is_if_for_while_before_offset(char_u *line, int *poffset) -{ - int offset = *poffset; - - if (offset-- < 2) - return 0; - while (offset > 2 && VIM_ISWHITE(line[offset])) - --offset; - - offset -= 1; - if (!STRNCMP(line + offset, "if", 2)) - goto probablyFound; - - if (offset >= 1) - { - offset -= 1; - if (!STRNCMP(line + offset, "for", 3)) - goto probablyFound; - - if (offset >= 2) - { - offset -= 2; - if (!STRNCMP(line + offset, "while", 5)) - goto probablyFound; - } - } - return 0; - -probablyFound: - if (!offset || !vim_isIDc(line[offset - 1])) - { - *poffset = offset; - return 1; - } - return 0; -} - -/* - * Return TRUE if we are at the end of a do-while. - * do - * nothing; - * while (foo - * && bar); <-- here - * Adjust the cursor to the line with "while". - */ - static int -cin_iswhileofdo_end(int terminated) -{ - char_u *line; - char_u *p; - char_u *s; - pos_T *trypos; - int i; - - if (terminated != ';') /* there must be a ';' at the end */ - return FALSE; - - p = line = ml_get_curline(); - while (*p != NUL) - { - p = cin_skipcomment(p); - if (*p == ')') - { - s = skipwhite(p + 1); - if (*s == ';' && cin_nocode(s + 1)) - { - /* Found ");" at end of the line, now check there is "while" - * before the matching '('. XXX */ - i = (int)(p - line); - curwin->w_cursor.col = i; - trypos = find_match_paren(curbuf->b_ind_maxparen); - if (trypos != NULL) - { - s = cin_skipcomment(ml_get(trypos->lnum)); - if (*s == '}') /* accept "} while (cond);" */ - s = cin_skipcomment(s + 1); - if (cin_starts_with(s, "while")) - { - curwin->w_cursor.lnum = trypos->lnum; - return TRUE; - } - } - - /* Searching may have made "line" invalid, get it again. */ - line = ml_get_curline(); - p = line + i; - } - } - if (*p != NUL) - ++p; - } - return FALSE; -} - - static int -cin_isbreak(char_u *p) -{ - return (STRNCMP(p, "break", 5) == 0 && !vim_isIDc(p[5])); -} - -/* - * Find the position of a C++ base-class declaration or - * constructor-initialization. eg: - * - * class MyClass : - * baseClass <-- here - * class MyClass : public baseClass, - * anotherBaseClass <-- here (should probably lineup ??) - * MyClass::MyClass(...) : - * baseClass(...) <-- here (constructor-initialization) - * - * This is a lot of guessing. Watch out for "cond ? func() : foo". - */ - static int -cin_is_cpp_baseclass( - cpp_baseclass_cache_T *cached) /* input and output */ -{ - lpos_T *pos = &cached->lpos; /* find position */ - char_u *s; - int class_or_struct, lookfor_ctor_init, cpp_base_class; - linenr_T lnum = curwin->w_cursor.lnum; - char_u *line = ml_get_curline(); - - if (pos->lnum <= lnum) - return cached->found; /* Use the cached result */ - - pos->col = 0; - - s = skipwhite(line); - if (*s == '#') /* skip #define FOO x ? (x) : x */ - return FALSE; - s = cin_skipcomment(s); - if (*s == NUL) - return FALSE; - - cpp_base_class = lookfor_ctor_init = class_or_struct = FALSE; - - /* Search for a line starting with '#', empty, ending in ';' or containing - * '{' or '}' and start below it. This handles the following situations: - * a = cond ? - * func() : - * asdf; - * func::foo() - * : something - * {} - * Foo::Foo (int one, int two) - * : something(4), - * somethingelse(3) - * {} - */ - while (lnum > 1) - { - line = ml_get(lnum - 1); - s = skipwhite(line); - if (*s == '#' || *s == NUL) - break; - while (*s != NUL) - { - s = cin_skipcomment(s); - if (*s == '{' || *s == '}' - || (*s == ';' && cin_nocode(s + 1))) - break; - if (*s != NUL) - ++s; - } - if (*s != NUL) - break; - --lnum; - } - - pos->lnum = lnum; - line = ml_get(lnum); - s = line; - for (;;) - { - if (*s == NUL) - { - if (lnum == curwin->w_cursor.lnum) - break; - /* Continue in the cursor line. */ - line = ml_get(++lnum); - s = line; - } - if (s == line) - { - /* don't recognize "case (foo):" as a baseclass */ - if (cin_iscase(s, FALSE)) - break; - s = cin_skipcomment(line); - if (*s == NUL) - continue; - } - - if (s[0] == '"' || (s[0] == 'R' && s[1] == '"')) - s = skip_string(s) + 1; - else if (s[0] == ':') - { - if (s[1] == ':') - { - /* skip double colon. It can't be a constructor - * initialization any more */ - lookfor_ctor_init = FALSE; - s = cin_skipcomment(s + 2); - } - else if (lookfor_ctor_init || class_or_struct) - { - /* we have something found, that looks like the start of - * cpp-base-class-declaration or constructor-initialization */ - cpp_base_class = TRUE; - lookfor_ctor_init = class_or_struct = FALSE; - pos->col = 0; - s = cin_skipcomment(s + 1); - } - else - s = cin_skipcomment(s + 1); - } - else if ((STRNCMP(s, "class", 5) == 0 && !vim_isIDc(s[5])) - || (STRNCMP(s, "struct", 6) == 0 && !vim_isIDc(s[6]))) - { - class_or_struct = TRUE; - lookfor_ctor_init = FALSE; - - if (*s == 'c') - s = cin_skipcomment(s + 5); - else - s = cin_skipcomment(s + 6); - } - else - { - if (s[0] == '{' || s[0] == '}' || s[0] == ';') - { - cpp_base_class = lookfor_ctor_init = class_or_struct = FALSE; - } - else if (s[0] == ')') - { - /* Constructor-initialization is assumed if we come across - * something like "):" */ - class_or_struct = FALSE; - lookfor_ctor_init = TRUE; - } - else if (s[0] == '?') - { - /* Avoid seeing '() :' after '?' as constructor init. */ - return FALSE; - } - else if (!vim_isIDc(s[0])) - { - /* if it is not an identifier, we are wrong */ - class_or_struct = FALSE; - lookfor_ctor_init = FALSE; - } - else if (pos->col == 0) - { - /* it can't be a constructor-initialization any more */ - lookfor_ctor_init = FALSE; - - /* the first statement starts here: lineup with this one... */ - if (cpp_base_class) - pos->col = (colnr_T)(s - line); - } - - /* When the line ends in a comma don't align with it. */ - if (lnum == curwin->w_cursor.lnum && *s == ',' && cin_nocode(s + 1)) - pos->col = 0; - - s = cin_skipcomment(s + 1); - } - } - - cached->found = cpp_base_class; - if (cpp_base_class) - pos->lnum = lnum; - return cpp_base_class; -} - - static int -get_baseclass_amount(int col) -{ - int amount; - colnr_T vcol; - pos_T *trypos; - - if (col == 0) - { - amount = get_indent(); - if (find_last_paren(ml_get_curline(), '(', ')') - && (trypos = find_match_paren(curbuf->b_ind_maxparen)) != NULL) - amount = get_indent_lnum(trypos->lnum); /* XXX */ - if (!cin_ends_in(ml_get_curline(), (char_u *)",", NULL)) - amount += curbuf->b_ind_cpp_baseclass; - } - else - { - curwin->w_cursor.col = col; - getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL); - amount = (int)vcol; - } - if (amount < curbuf->b_ind_cpp_baseclass) - amount = curbuf->b_ind_cpp_baseclass; - return amount; -} - -/* - * Return TRUE if string "s" ends with the string "find", possibly followed by - * white space and comments. Skip strings and comments. - * Ignore "ignore" after "find" if it's not NULL. - */ - static int -cin_ends_in(char_u *s, char_u *find, char_u *ignore) -{ - char_u *p = s; - char_u *r; - int len = (int)STRLEN(find); - - while (*p != NUL) - { - p = cin_skipcomment(p); - if (STRNCMP(p, find, len) == 0) - { - r = skipwhite(p + len); - if (ignore != NULL && STRNCMP(r, ignore, STRLEN(ignore)) == 0) - r = skipwhite(r + STRLEN(ignore)); - if (cin_nocode(r)) - return TRUE; - } - if (*p != NUL) - ++p; - } - return FALSE; -} - -/* - * Return TRUE when "s" starts with "word" and then a non-ID character. - */ - static int -cin_starts_with(char_u *s, char *word) -{ - int l = (int)STRLEN(word); - - return (STRNCMP(s, word, l) == 0 && !vim_isIDc(s[l])); -} - -/* - * Skip strings, chars and comments until at or past "trypos". - * Return the column found. - */ - static int -cin_skip2pos(pos_T *trypos) -{ - char_u *line; - char_u *p; - char_u *new_p; - - p = line = ml_get(trypos->lnum); - while (*p && (colnr_T)(p - line) < trypos->col) - { - if (cin_iscomment(p)) - p = cin_skipcomment(p); - else - { - new_p = skip_string(p); - if (new_p == p) - ++p; - else - p = new_p; - } - } - return (int)(p - line); -} - -/* - * Find the '{' at the start of the block we are in. - * Return NULL if no match found. - * Ignore a '{' that is in a comment, makes indenting the next three lines - * work. */ -/* foo() */ -/* { */ -/* } */ - - static pos_T * -find_start_brace(void) /* XXX */ -{ - pos_T cursor_save; - pos_T *trypos; - pos_T *pos; - static pos_T pos_copy; - - cursor_save = curwin->w_cursor; - while ((trypos = findmatchlimit(NULL, '{', FM_BLOCKSTOP, 0)) != NULL) - { - pos_copy = *trypos; /* copy pos_T, next findmatch will change it */ - trypos = &pos_copy; - curwin->w_cursor = *trypos; - pos = NULL; - /* ignore the { if it's in a // or / * * / comment */ - if ((colnr_T)cin_skip2pos(trypos) == trypos->col - && (pos = ind_find_start_CORS(NULL)) == NULL) /* XXX */ - break; - if (pos != NULL) - curwin->w_cursor.lnum = pos->lnum; - } - curwin->w_cursor = cursor_save; - return trypos; -} - -/* - * Find the matching '(', ignoring it if it is in a comment. - * Return NULL if no match found. - */ - static pos_T * -find_match_paren(int ind_maxparen) /* XXX */ -{ - return find_match_char('(', ind_maxparen); -} - - static pos_T * -find_match_char(int c, int ind_maxparen) /* XXX */ -{ - pos_T cursor_save; - pos_T *trypos; - static pos_T pos_copy; - int ind_maxp_wk; - - cursor_save = curwin->w_cursor; - ind_maxp_wk = ind_maxparen; -retry: - if ((trypos = findmatchlimit(NULL, c, 0, ind_maxp_wk)) != NULL) - { - /* check if the ( is in a // comment */ - if ((colnr_T)cin_skip2pos(trypos) > trypos->col) - { - ind_maxp_wk = ind_maxparen - (int)(cursor_save.lnum - trypos->lnum); - if (ind_maxp_wk > 0) - { - curwin->w_cursor = *trypos; - curwin->w_cursor.col = 0; /* XXX */ - goto retry; - } - trypos = NULL; - } - else - { - pos_T *trypos_wk; - - pos_copy = *trypos; /* copy trypos, findmatch will change it */ - trypos = &pos_copy; - curwin->w_cursor = *trypos; - if ((trypos_wk = ind_find_start_CORS(NULL)) != NULL) /* XXX */ - { - ind_maxp_wk = ind_maxparen - (int)(cursor_save.lnum - - trypos_wk->lnum); - if (ind_maxp_wk > 0) - { - curwin->w_cursor = *trypos_wk; - goto retry; - } - trypos = NULL; - } - } - } - curwin->w_cursor = cursor_save; - return trypos; -} - -/* - * Find the matching '(', ignoring it if it is in a comment or before an - * unmatched {. - * Return NULL if no match found. - */ - static pos_T * -find_match_paren_after_brace (int ind_maxparen) /* XXX */ -{ - pos_T *trypos = find_match_paren(ind_maxparen); - - if (trypos != NULL) - { - pos_T *tryposBrace = find_start_brace(); - - /* If both an unmatched '(' and '{' is found. Ignore the '(' - * position if the '{' is further down. */ - if (tryposBrace != NULL - && (trypos->lnum != tryposBrace->lnum - ? trypos->lnum < tryposBrace->lnum - : trypos->col < tryposBrace->col)) - trypos = NULL; - } - return trypos; -} - -/* - * Return ind_maxparen corrected for the difference in line number between the - * cursor position and "startpos". This makes sure that searching for a - * matching paren above the cursor line doesn't find a match because of - * looking a few lines further. - */ - static int -corr_ind_maxparen(pos_T *startpos) -{ - long n = (long)startpos->lnum - (long)curwin->w_cursor.lnum; - - if (n > 0 && n < curbuf->b_ind_maxparen / 2) - return curbuf->b_ind_maxparen - (int)n; - return curbuf->b_ind_maxparen; -} - -/* - * Set w_cursor.col to the column number of the last unmatched ')' or '{' in - * line "l". "l" must point to the start of the line. - */ - static int -find_last_paren(char_u *l, int start, int end) -{ - int i; - int retval = FALSE; - int open_count = 0; - - curwin->w_cursor.col = 0; /* default is start of line */ - - for (i = 0; l[i] != NUL; i++) - { - i = (int)(cin_skipcomment(l + i) - l); /* ignore parens in comments */ - i = (int)(skip_string(l + i) - l); /* ignore parens in quotes */ - if (l[i] == start) - ++open_count; - else if (l[i] == end) - { - if (open_count > 0) - --open_count; - else - { - curwin->w_cursor.col = i; - retval = TRUE; - } - } - } - return retval; -} - -/* - * Parse 'cinoptions' and set the values in "curbuf". - * Must be called when 'cinoptions', 'shiftwidth' and/or 'tabstop' changes. - */ - void -parse_cino(buf_T *buf) -{ - char_u *p; - char_u *l; - char_u *digits; - int n; - int divider; - int fraction = 0; - int sw = (int)get_sw_value(buf); - - /* - * Set the default values. - */ - /* Spaces from a block's opening brace the prevailing indent for that - * block should be. */ - buf->b_ind_level = sw; - - /* Spaces from the edge of the line an open brace that's at the end of a - * line is imagined to be. */ - buf->b_ind_open_imag = 0; - - /* Spaces from the prevailing indent for a line that is not preceded by - * an opening brace. */ - buf->b_ind_no_brace = 0; - - /* Column where the first { of a function should be located }. */ - buf->b_ind_first_open = 0; - - /* Spaces from the prevailing indent a leftmost open brace should be - * located. */ - buf->b_ind_open_extra = 0; - - /* Spaces from the matching open brace (real location for one at the left - * edge; imaginary location from one that ends a line) the matching close - * brace should be located. */ - buf->b_ind_close_extra = 0; - - /* Spaces from the edge of the line an open brace sitting in the leftmost - * column is imagined to be. */ - buf->b_ind_open_left_imag = 0; - - /* Spaces jump labels should be shifted to the left if N is non-negative, - * otherwise the jump label will be put to column 1. */ - buf->b_ind_jump_label = -1; - - /* Spaces from the switch() indent a "case xx" label should be located. */ - buf->b_ind_case = sw; - - /* Spaces from the "case xx:" code after a switch() should be located. */ - buf->b_ind_case_code = sw; - - /* Lineup break at end of case in switch() with case label. */ - buf->b_ind_case_break = 0; - - /* Spaces from the class declaration indent a scope declaration label - * should be located. */ - buf->b_ind_scopedecl = sw; - - /* Spaces from the scope declaration label code should be located. */ - buf->b_ind_scopedecl_code = sw; - - /* Amount K&R-style parameters should be indented. */ - buf->b_ind_param = sw; - - /* Amount a function type spec should be indented. */ - buf->b_ind_func_type = sw; - - /* Amount a cpp base class declaration or constructor initialization - * should be indented. */ - buf->b_ind_cpp_baseclass = sw; - - /* additional spaces beyond the prevailing indent a continuation line - * should be located. */ - buf->b_ind_continuation = sw; - - /* Spaces from the indent of the line with an unclosed parentheses. */ - buf->b_ind_unclosed = sw * 2; - - /* Spaces from the indent of the line with an unclosed parentheses, which - * itself is also unclosed. */ - buf->b_ind_unclosed2 = sw; - - /* Suppress ignoring spaces from the indent of a line starting with an - * unclosed parentheses. */ - buf->b_ind_unclosed_noignore = 0; - - /* If the opening paren is the last nonwhite character on the line, and - * b_ind_unclosed_wrapped is nonzero, use this indent relative to the outer - * context (for very long lines). */ - buf->b_ind_unclosed_wrapped = 0; - - /* Suppress ignoring white space when lining up with the character after - * an unclosed parentheses. */ - buf->b_ind_unclosed_whiteok = 0; - - /* Indent a closing parentheses under the line start of the matching - * opening parentheses. */ - buf->b_ind_matching_paren = 0; - - /* Indent a closing parentheses under the previous line. */ - buf->b_ind_paren_prev = 0; - - /* Extra indent for comments. */ - buf->b_ind_comment = 0; - - /* Spaces from the comment opener when there is nothing after it. */ - buf->b_ind_in_comment = 3; - - /* Boolean: if non-zero, use b_ind_in_comment even if there is something - * after the comment opener. */ - buf->b_ind_in_comment2 = 0; - - /* Max lines to search for an open paren. */ - buf->b_ind_maxparen = 20; - - /* Max lines to search for an open comment. */ - buf->b_ind_maxcomment = 70; - - /* Handle braces for java code. */ - buf->b_ind_java = 0; - - /* Not to confuse JS object properties with labels. */ - buf->b_ind_js = 0; - - /* Handle blocked cases correctly. */ - buf->b_ind_keep_case_label = 0; - - /* Handle C++ namespace. */ - buf->b_ind_cpp_namespace = 0; - - /* Handle continuation lines containing conditions of if(), for() and - * while(). */ - buf->b_ind_if_for_while = 0; - - /* indentation for # comments */ - buf->b_ind_hash_comment = 0; - - /* Handle C++ extern "C" or "C++" */ - buf->b_ind_cpp_extern_c = 0; - - for (p = buf->b_p_cino; *p; ) - { - l = p++; - if (*p == '-') - ++p; - digits = p; /* remember where the digits start */ - n = getdigits(&p); - divider = 0; - if (*p == '.') /* ".5s" means a fraction */ - { - fraction = atol((char *)++p); - while (VIM_ISDIGIT(*p)) - { - ++p; - if (divider) - divider *= 10; - else - divider = 10; - } - } - if (*p == 's') /* "2s" means two times 'shiftwidth' */ - { - if (p == digits) - n = sw; /* just "s" is one 'shiftwidth' */ - else - { - n *= sw; - if (divider) - n += (sw * fraction + divider / 2) / divider; - } - ++p; - } - if (l[1] == '-') - n = -n; - - /* When adding an entry here, also update the default 'cinoptions' in - * doc/indent.txt, and add explanation for it! */ - switch (*l) - { - case '>': buf->b_ind_level = n; break; - case 'e': buf->b_ind_open_imag = n; break; - case 'n': buf->b_ind_no_brace = n; break; - case 'f': buf->b_ind_first_open = n; break; - case '{': buf->b_ind_open_extra = n; break; - case '}': buf->b_ind_close_extra = n; break; - case '^': buf->b_ind_open_left_imag = n; break; - case 'L': buf->b_ind_jump_label = n; break; - case ':': buf->b_ind_case = n; break; - case '=': buf->b_ind_case_code = n; break; - case 'b': buf->b_ind_case_break = n; break; - case 'p': buf->b_ind_param = n; break; - case 't': buf->b_ind_func_type = n; break; - case '/': buf->b_ind_comment = n; break; - case 'c': buf->b_ind_in_comment = n; break; - case 'C': buf->b_ind_in_comment2 = n; break; - case 'i': buf->b_ind_cpp_baseclass = n; break; - case '+': buf->b_ind_continuation = n; break; - case '(': buf->b_ind_unclosed = n; break; - case 'u': buf->b_ind_unclosed2 = n; break; - case 'U': buf->b_ind_unclosed_noignore = n; break; - case 'W': buf->b_ind_unclosed_wrapped = n; break; - case 'w': buf->b_ind_unclosed_whiteok = n; break; - case 'm': buf->b_ind_matching_paren = n; break; - case 'M': buf->b_ind_paren_prev = n; break; - case ')': buf->b_ind_maxparen = n; break; - case '*': buf->b_ind_maxcomment = n; break; - case 'g': buf->b_ind_scopedecl = n; break; - case 'h': buf->b_ind_scopedecl_code = n; break; - case 'j': buf->b_ind_java = n; break; - case 'J': buf->b_ind_js = n; break; - case 'l': buf->b_ind_keep_case_label = n; break; - case '#': buf->b_ind_hash_comment = n; break; - case 'N': buf->b_ind_cpp_namespace = n; break; - case 'k': buf->b_ind_if_for_while = n; break; - case 'E': buf->b_ind_cpp_extern_c = n; break; - } - if (*p == ',') - ++p; - } -} - -/* - * Return the desired indent for C code. - * Return -1 if the indent should be left alone (inside a raw string). - */ - int -get_c_indent(void) -{ - pos_T cur_curpos; - int amount; - int scope_amount; - int cur_amount = MAXCOL; - colnr_T col; - char_u *theline; - char_u *linecopy; - pos_T *trypos; - pos_T *comment_pos; - pos_T *tryposBrace = NULL; - pos_T tryposCopy; - pos_T our_paren_pos; - char_u *start; - int start_brace; -#define BRACE_IN_COL0 1 /* '{' is in column 0 */ -#define BRACE_AT_START 2 /* '{' is at start of line */ -#define BRACE_AT_END 3 /* '{' is at end of line */ - linenr_T ourscope; - char_u *l; - char_u *look; - char_u terminated; - int lookfor; -#define LOOKFOR_INITIAL 0 -#define LOOKFOR_IF 1 -#define LOOKFOR_DO 2 -#define LOOKFOR_CASE 3 -#define LOOKFOR_ANY 4 -#define LOOKFOR_TERM 5 -#define LOOKFOR_UNTERM 6 -#define LOOKFOR_SCOPEDECL 7 -#define LOOKFOR_NOBREAK 8 -#define LOOKFOR_CPP_BASECLASS 9 -#define LOOKFOR_ENUM_OR_INIT 10 -#define LOOKFOR_JS_KEY 11 -#define LOOKFOR_COMMA 12 - - int whilelevel; - linenr_T lnum; - int n; - int iscase; - int lookfor_break; - int lookfor_cpp_namespace = FALSE; - int cont_amount = 0; /* amount for continuation line */ - int original_line_islabel; - int added_to_amount = 0; - int js_cur_has_key = 0; - linenr_T raw_string_start = 0; - cpp_baseclass_cache_T cache_cpp_baseclass = { FALSE, { MAXLNUM, 0 } }; - - /* make a copy, value is changed below */ - int ind_continuation = curbuf->b_ind_continuation; - - /* remember where the cursor was when we started */ - cur_curpos = curwin->w_cursor; - - /* if we are at line 1 zero indent is fine, right? */ - if (cur_curpos.lnum == 1) - return 0; - - /* Get a copy of the current contents of the line. - * This is required, because only the most recent line obtained with - * ml_get is valid! */ - linecopy = vim_strsave(ml_get(cur_curpos.lnum)); - if (linecopy == NULL) - return 0; - - /* - * In insert mode and the cursor is on a ')' truncate the line at the - * cursor position. We don't want to line up with the matching '(' when - * inserting new stuff. - * For unknown reasons the cursor might be past the end of the line, thus - * check for that. - */ - if ((State & INSERT) - && curwin->w_cursor.col < (colnr_T)STRLEN(linecopy) - && linecopy[curwin->w_cursor.col] == ')') - linecopy[curwin->w_cursor.col] = NUL; - - theline = skipwhite(linecopy); - - /* move the cursor to the start of the line */ - - curwin->w_cursor.col = 0; - - original_line_islabel = cin_islabel(); /* XXX */ - - /* - * If we are inside a raw string don't change the indent. - * Ignore a raw string inside a comment. - */ - comment_pos = ind_find_start_comment(); - if (comment_pos != NULL) - { - /* findmatchlimit() static pos is overwritten, make a copy */ - tryposCopy = *comment_pos; - comment_pos = &tryposCopy; - } - trypos = find_start_rawstring(curbuf->b_ind_maxcomment); - if (trypos != NULL && (comment_pos == NULL - || LT_POS(*trypos, *comment_pos))) - { - amount = -1; - goto laterend; - } - - /* - * #defines and so on always go at the left when included in 'cinkeys'. - */ - if (*theline == '#' && (*linecopy == '#' || in_cinkeys('#', ' ', TRUE))) - { - amount = curbuf->b_ind_hash_comment; - goto theend; - } - - /* - * Is it a non-case label? Then that goes at the left margin too unless: - * - JS flag is set. - * - 'L' item has a positive value. - */ - if (original_line_islabel && !curbuf->b_ind_js - && curbuf->b_ind_jump_label < 0) - { - amount = 0; - goto theend; - } - - /* - * If we're inside a "//" comment and there is a "//" comment in a - * previous line, lineup with that one. - */ - if (cin_islinecomment(theline) - && (trypos = find_line_comment()) != NULL) /* XXX */ - { - /* find how indented the line beginning the comment is */ - getvcol(curwin, trypos, &col, NULL, NULL); - amount = col; - goto theend; - } - - /* - * If we're inside a comment and not looking at the start of the - * comment, try using the 'comments' option. - */ - if (!cin_iscomment(theline) && comment_pos != NULL) /* XXX */ - { - int lead_start_len = 2; - int lead_middle_len = 1; - char_u lead_start[COM_MAX_LEN]; /* start-comment string */ - char_u lead_middle[COM_MAX_LEN]; /* middle-comment string */ - char_u lead_end[COM_MAX_LEN]; /* end-comment string */ - char_u *p; - int start_align = 0; - int start_off = 0; - int done = FALSE; - - /* find how indented the line beginning the comment is */ - getvcol(curwin, comment_pos, &col, NULL, NULL); - amount = col; - *lead_start = NUL; - *lead_middle = NUL; - - p = curbuf->b_p_com; - while (*p != NUL) - { - int align = 0; - int off = 0; - int what = 0; - - while (*p != NUL && *p != ':') - { - if (*p == COM_START || *p == COM_END || *p == COM_MIDDLE) - what = *p++; - else if (*p == COM_LEFT || *p == COM_RIGHT) - align = *p++; - else if (VIM_ISDIGIT(*p) || *p == '-') - off = getdigits(&p); - else - ++p; - } - - if (*p == ':') - ++p; - (void)copy_option_part(&p, lead_end, COM_MAX_LEN, ","); - if (what == COM_START) - { - STRCPY(lead_start, lead_end); - lead_start_len = (int)STRLEN(lead_start); - start_off = off; - start_align = align; - } - else if (what == COM_MIDDLE) - { - STRCPY(lead_middle, lead_end); - lead_middle_len = (int)STRLEN(lead_middle); - } - else if (what == COM_END) - { - /* If our line starts with the middle comment string, line it - * up with the comment opener per the 'comments' option. */ - if (STRNCMP(theline, lead_middle, lead_middle_len) == 0 - && STRNCMP(theline, lead_end, STRLEN(lead_end)) != 0) - { - done = TRUE; - if (curwin->w_cursor.lnum > 1) - { - /* If the start comment string matches in the previous - * line, use the indent of that line plus offset. If - * the middle comment string matches in the previous - * line, use the indent of that line. XXX */ - look = skipwhite(ml_get(curwin->w_cursor.lnum - 1)); - if (STRNCMP(look, lead_start, lead_start_len) == 0) - amount = get_indent_lnum(curwin->w_cursor.lnum - 1); - else if (STRNCMP(look, lead_middle, - lead_middle_len) == 0) - { - amount = get_indent_lnum(curwin->w_cursor.lnum - 1); - break; - } - /* If the start comment string doesn't match with the - * start of the comment, skip this entry. XXX */ - else if (STRNCMP(ml_get(comment_pos->lnum) + comment_pos->col, - lead_start, lead_start_len) != 0) - continue; - } - if (start_off != 0) - amount += start_off; - else if (start_align == COM_RIGHT) - amount += vim_strsize(lead_start) - - vim_strsize(lead_middle); - break; - } - - /* If our line starts with the end comment string, line it up - * with the middle comment */ - if (STRNCMP(theline, lead_middle, lead_middle_len) != 0 - && STRNCMP(theline, lead_end, STRLEN(lead_end)) == 0) - { - amount = get_indent_lnum(curwin->w_cursor.lnum - 1); - /* XXX */ - if (off != 0) - amount += off; - else if (align == COM_RIGHT) - amount += vim_strsize(lead_start) - - vim_strsize(lead_middle); - done = TRUE; - break; - } - } - } - - /* If our line starts with an asterisk, line up with the - * asterisk in the comment opener; otherwise, line up - * with the first character of the comment text. - */ - if (done) - ; - else if (theline[0] == '*') - amount += 1; - else - { - /* - * If we are more than one line away from the comment opener, take - * the indent of the previous non-empty line. If 'cino' has "CO" - * and we are just below the comment opener and there are any - * white characters after it line up with the text after it; - * otherwise, add the amount specified by "c" in 'cino' - */ - amount = -1; - for (lnum = cur_curpos.lnum - 1; lnum > comment_pos->lnum; --lnum) - { - if (linewhite(lnum)) /* skip blank lines */ - continue; - amount = get_indent_lnum(lnum); /* XXX */ - break; - } - if (amount == -1) /* use the comment opener */ - { - if (!curbuf->b_ind_in_comment2) - { - start = ml_get(comment_pos->lnum); - look = start + comment_pos->col + 2; /* skip / and * */ - if (*look != NUL) /* if something after it */ - comment_pos->col = (colnr_T)(skipwhite(look) - start); - } - getvcol(curwin, comment_pos, &col, NULL, NULL); - amount = col; - if (curbuf->b_ind_in_comment2 || *look == NUL) - amount += curbuf->b_ind_in_comment; - } - } - goto theend; - } - - /* - * Are we looking at a ']' that has a match? - */ - if (*skipwhite(theline) == ']' - && (trypos = find_match_char('[', curbuf->b_ind_maxparen)) != NULL) - { - /* align with the line containing the '['. */ - amount = get_indent_lnum(trypos->lnum); - goto theend; - } - - /* - * Are we inside parentheses or braces? - */ /* XXX */ - if (((trypos = find_match_paren(curbuf->b_ind_maxparen)) != NULL - && curbuf->b_ind_java == 0) - || (tryposBrace = find_start_brace()) != NULL - || trypos != NULL) - { - if (trypos != NULL && tryposBrace != NULL) - { - /* Both an unmatched '(' and '{' is found. Use the one which is - * closer to the current cursor position, set the other to NULL. */ - if (trypos->lnum != tryposBrace->lnum - ? trypos->lnum < tryposBrace->lnum - : trypos->col < tryposBrace->col) - trypos = NULL; - else - tryposBrace = NULL; - } - - if (trypos != NULL) - { - /* - * If the matching paren is more than one line away, use the indent of - * a previous non-empty line that matches the same paren. - */ - if (theline[0] == ')' && curbuf->b_ind_paren_prev) - { - /* Line up with the start of the matching paren line. */ - amount = get_indent_lnum(curwin->w_cursor.lnum - 1); /* XXX */ - } - else - { - amount = -1; - our_paren_pos = *trypos; - for (lnum = cur_curpos.lnum - 1; lnum > our_paren_pos.lnum; --lnum) - { - l = skipwhite(ml_get(lnum)); - if (cin_nocode(l)) /* skip comment lines */ - continue; - if (cin_ispreproc_cont(&l, &lnum, &amount)) - continue; /* ignore #define, #if, etc. */ - curwin->w_cursor.lnum = lnum; - - /* Skip a comment or raw string. XXX */ - if ((trypos = ind_find_start_CORS(NULL)) != NULL) - { - lnum = trypos->lnum + 1; - continue; - } - - /* XXX */ - if ((trypos = find_match_paren( - corr_ind_maxparen(&cur_curpos))) != NULL - && trypos->lnum == our_paren_pos.lnum - && trypos->col == our_paren_pos.col) - { - amount = get_indent_lnum(lnum); /* XXX */ - - if (theline[0] == ')') - { - if (our_paren_pos.lnum != lnum - && cur_amount > amount) - cur_amount = amount; - amount = -1; - } - break; - } - } - } - - /* - * Line up with line where the matching paren is. XXX - * If the line starts with a '(' or the indent for unclosed - * parentheses is zero, line up with the unclosed parentheses. - */ - if (amount == -1) - { - int ignore_paren_col = 0; - int is_if_for_while = 0; - - if (curbuf->b_ind_if_for_while) - { - /* Look for the outermost opening parenthesis on this line - * and check whether it belongs to an "if", "for" or "while". */ - - pos_T cursor_save = curwin->w_cursor; - pos_T outermost; - char_u *line; - - trypos = &our_paren_pos; - do { - outermost = *trypos; - curwin->w_cursor.lnum = outermost.lnum; - curwin->w_cursor.col = outermost.col; - - trypos = find_match_paren(curbuf->b_ind_maxparen); - } while (trypos && trypos->lnum == outermost.lnum); - - curwin->w_cursor = cursor_save; - - line = ml_get(outermost.lnum); - - is_if_for_while = - cin_is_if_for_while_before_offset(line, &outermost.col); - } - - amount = skip_label(our_paren_pos.lnum, &look); - look = skipwhite(look); - if (*look == '(') - { - linenr_T save_lnum = curwin->w_cursor.lnum; - char_u *line; - int look_col; - - /* Ignore a '(' in front of the line that has a match before - * our matching '('. */ - curwin->w_cursor.lnum = our_paren_pos.lnum; - line = ml_get_curline(); - look_col = (int)(look - line); - curwin->w_cursor.col = look_col + 1; - if ((trypos = findmatchlimit(NULL, ')', 0, - curbuf->b_ind_maxparen)) - != NULL - && trypos->lnum == our_paren_pos.lnum - && trypos->col < our_paren_pos.col) - ignore_paren_col = trypos->col + 1; - - curwin->w_cursor.lnum = save_lnum; - look = ml_get(our_paren_pos.lnum) + look_col; - } - if (theline[0] == ')' || (curbuf->b_ind_unclosed == 0 - && is_if_for_while == 0) - || (!curbuf->b_ind_unclosed_noignore && *look == '(' - && ignore_paren_col == 0)) - { - /* - * If we're looking at a close paren, line up right there; - * otherwise, line up with the next (non-white) character. - * When b_ind_unclosed_wrapped is set and the matching paren is - * the last nonwhite character of the line, use either the - * indent of the current line or the indentation of the next - * outer paren and add b_ind_unclosed_wrapped (for very long - * lines). - */ - if (theline[0] != ')') - { - cur_amount = MAXCOL; - l = ml_get(our_paren_pos.lnum); - if (curbuf->b_ind_unclosed_wrapped - && cin_ends_in(l, (char_u *)"(", NULL)) - { - /* look for opening unmatched paren, indent one level - * for each additional level */ - n = 1; - for (col = 0; col < our_paren_pos.col; ++col) - { - switch (l[col]) - { - case '(': - case '{': ++n; - break; - - case ')': - case '}': if (n > 1) - --n; - break; - } - } - - our_paren_pos.col = 0; - amount += n * curbuf->b_ind_unclosed_wrapped; - } - else if (curbuf->b_ind_unclosed_whiteok) - our_paren_pos.col++; - else - { - col = our_paren_pos.col + 1; - while (VIM_ISWHITE(l[col])) - col++; - if (l[col] != NUL) /* In case of trailing space */ - our_paren_pos.col = col; - else - our_paren_pos.col++; - } - } - - /* - * Find how indented the paren is, or the character after it - * if we did the above "if". - */ - if (our_paren_pos.col > 0) - { - getvcol(curwin, &our_paren_pos, &col, NULL, NULL); - if (cur_amount > (int)col) - cur_amount = col; - } - } - - if (theline[0] == ')' && curbuf->b_ind_matching_paren) - { - /* Line up with the start of the matching paren line. */ - } - else if ((curbuf->b_ind_unclosed == 0 && is_if_for_while == 0) - || (!curbuf->b_ind_unclosed_noignore - && *look == '(' && ignore_paren_col == 0)) - { - if (cur_amount != MAXCOL) - amount = cur_amount; - } - else - { - /* Add b_ind_unclosed2 for each '(' before our matching one, - * but ignore (void) before the line (ignore_paren_col). */ - col = our_paren_pos.col; - while ((int)our_paren_pos.col > ignore_paren_col) - { - --our_paren_pos.col; - switch (*ml_get_pos(&our_paren_pos)) - { - case '(': amount += curbuf->b_ind_unclosed2; - col = our_paren_pos.col; - break; - case ')': amount -= curbuf->b_ind_unclosed2; - col = MAXCOL; - break; - } - } - - /* Use b_ind_unclosed once, when the first '(' is not inside - * braces */ - if (col == MAXCOL) - amount += curbuf->b_ind_unclosed; - else - { - curwin->w_cursor.lnum = our_paren_pos.lnum; - curwin->w_cursor.col = col; - if (find_match_paren_after_brace(curbuf->b_ind_maxparen) - != NULL) - amount += curbuf->b_ind_unclosed2; - else - { - if (is_if_for_while) - amount += curbuf->b_ind_if_for_while; - else - amount += curbuf->b_ind_unclosed; - } - } - /* - * For a line starting with ')' use the minimum of the two - * positions, to avoid giving it more indent than the previous - * lines: - * func_long_name( if (x - * arg && yy - * ) ^ not here ) ^ not here - */ - if (cur_amount < amount) - amount = cur_amount; - } - } - - /* add extra indent for a comment */ - if (cin_iscomment(theline)) - amount += curbuf->b_ind_comment; - } - else - { - /* - * We are inside braces, there is a { before this line at the position - * stored in tryposBrace. - * Make a copy of tryposBrace, it may point to pos_copy inside - * find_start_brace(), which may be changed somewhere. - */ - tryposCopy = *tryposBrace; - tryposBrace = &tryposCopy; - trypos = tryposBrace; - ourscope = trypos->lnum; - start = ml_get(ourscope); - - /* - * Now figure out how indented the line is in general. - * If the brace was at the start of the line, we use that; - * otherwise, check out the indentation of the line as - * a whole and then add the "imaginary indent" to that. - */ - look = skipwhite(start); - if (*look == '{') - { - getvcol(curwin, trypos, &col, NULL, NULL); - amount = col; - if (*start == '{') - start_brace = BRACE_IN_COL0; - else - start_brace = BRACE_AT_START; - } - else - { - /* That opening brace might have been on a continuation - * line. if so, find the start of the line. */ - curwin->w_cursor.lnum = ourscope; - - /* Position the cursor over the rightmost paren, so that - * matching it will take us back to the start of the line. */ - lnum = ourscope; - if (find_last_paren(start, '(', ')') - && (trypos = find_match_paren(curbuf->b_ind_maxparen)) - != NULL) - lnum = trypos->lnum; - - /* It could have been something like - * case 1: if (asdf && - * ldfd) { - * } - */ - if ((curbuf->b_ind_js || curbuf->b_ind_keep_case_label) - && cin_iscase(skipwhite(ml_get_curline()), FALSE)) - amount = get_indent(); - else if (curbuf->b_ind_js) - amount = get_indent_lnum(lnum); - else - amount = skip_label(lnum, &l); - - start_brace = BRACE_AT_END; - } - - /* For Javascript check if the line starts with "key:". */ - if (curbuf->b_ind_js) - js_cur_has_key = cin_has_js_key(theline); - - /* - * If we're looking at a closing brace, that's where - * we want to be. otherwise, add the amount of room - * that an indent is supposed to be. - */ - if (theline[0] == '}') - { - /* - * they may want closing braces to line up with something - * other than the open brace. indulge them, if so. - */ - amount += curbuf->b_ind_close_extra; - } - else - { - /* - * If we're looking at an "else", try to find an "if" - * to match it with. - * If we're looking at a "while", try to find a "do" - * to match it with. - */ - lookfor = LOOKFOR_INITIAL; - if (cin_iselse(theline)) - lookfor = LOOKFOR_IF; - else if (cin_iswhileofdo(theline, cur_curpos.lnum)) /* XXX */ - lookfor = LOOKFOR_DO; - if (lookfor != LOOKFOR_INITIAL) - { - curwin->w_cursor.lnum = cur_curpos.lnum; - if (find_match(lookfor, ourscope) == OK) - { - amount = get_indent(); /* XXX */ - goto theend; - } - } - - /* - * We get here if we are not on an "while-of-do" or "else" (or - * failed to find a matching "if"). - * Search backwards for something to line up with. - * First set amount for when we don't find anything. - */ - - /* - * if the '{' is _really_ at the left margin, use the imaginary - * location of a left-margin brace. Otherwise, correct the - * location for b_ind_open_extra. - */ - - if (start_brace == BRACE_IN_COL0) /* '{' is in column 0 */ - { - amount = curbuf->b_ind_open_left_imag; - lookfor_cpp_namespace = TRUE; - } - else if (start_brace == BRACE_AT_START && - lookfor_cpp_namespace) /* '{' is at start */ - { - - lookfor_cpp_namespace = TRUE; - } - else - { - if (start_brace == BRACE_AT_END) /* '{' is at end of line */ - { - amount += curbuf->b_ind_open_imag; - - l = skipwhite(ml_get_curline()); - if (cin_is_cpp_namespace(l)) - amount += curbuf->b_ind_cpp_namespace; - else if (cin_is_cpp_extern_c(l)) - amount += curbuf->b_ind_cpp_extern_c; - } - else - { - /* Compensate for adding b_ind_open_extra later. */ - amount -= curbuf->b_ind_open_extra; - if (amount < 0) - amount = 0; - } - } - - lookfor_break = FALSE; - - if (cin_iscase(theline, FALSE)) /* it's a switch() label */ - { - lookfor = LOOKFOR_CASE; /* find a previous switch() label */ - amount += curbuf->b_ind_case; - } - else if (cin_isscopedecl(theline)) /* private:, ... */ - { - lookfor = LOOKFOR_SCOPEDECL; /* class decl is this block */ - amount += curbuf->b_ind_scopedecl; - } - else - { - if (curbuf->b_ind_case_break && cin_isbreak(theline)) - /* break; ... */ - lookfor_break = TRUE; - - lookfor = LOOKFOR_INITIAL; - /* b_ind_level from start of block */ - amount += curbuf->b_ind_level; - } - scope_amount = amount; - whilelevel = 0; - - /* - * Search backwards. If we find something we recognize, line up - * with that. - * - * If we're looking at an open brace, indent - * the usual amount relative to the conditional - * that opens the block. - */ - curwin->w_cursor = cur_curpos; - for (;;) - { - curwin->w_cursor.lnum--; - curwin->w_cursor.col = 0; - - /* - * If we went all the way back to the start of our scope, line - * up with it. - */ - if (curwin->w_cursor.lnum <= ourscope) - { - /* We reached end of scope: - * If looking for a enum or structure initialization - * go further back: - * If it is an initializer (enum xxx or xxx =), then - * don't add ind_continuation, otherwise it is a variable - * declaration: - * int x, - * here; <-- add ind_continuation - */ - if (lookfor == LOOKFOR_ENUM_OR_INIT) - { - if (curwin->w_cursor.lnum == 0 - || curwin->w_cursor.lnum - < ourscope - curbuf->b_ind_maxparen) - { - /* nothing found (abuse curbuf->b_ind_maxparen as - * limit) assume terminated line (i.e. a variable - * initialization) */ - if (cont_amount > 0) - amount = cont_amount; - else if (!curbuf->b_ind_js) - amount += ind_continuation; - break; - } - - l = ml_get_curline(); - - /* - * If we're in a comment or raw string now, skip to - * the start of it. - */ - trypos = ind_find_start_CORS(NULL); - if (trypos != NULL) - { - curwin->w_cursor.lnum = trypos->lnum + 1; - curwin->w_cursor.col = 0; - continue; - } - - /* - * Skip preprocessor directives and blank lines. - */ - if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum, - &amount)) - continue; - - if (cin_nocode(l)) - continue; - - terminated = cin_isterminated(l, FALSE, TRUE); - - /* - * If we are at top level and the line looks like a - * function declaration, we are done - * (it's a variable declaration). - */ - if (start_brace != BRACE_IN_COL0 - || !cin_isfuncdecl(&l, curwin->w_cursor.lnum, 0)) - { - /* if the line is terminated with another ',' - * it is a continued variable initialization. - * don't add extra indent. - * TODO: does not work, if a function - * declaration is split over multiple lines: - * cin_isfuncdecl returns FALSE then. - */ - if (terminated == ',') - break; - - /* if it es a enum declaration or an assignment, - * we are done. - */ - if (terminated != ';' && cin_isinit()) - break; - - /* nothing useful found */ - if (terminated == 0 || terminated == '{') - continue; - } - - if (terminated != ';') - { - /* Skip parens and braces. Position the cursor - * over the rightmost paren, so that matching it - * will take us back to the start of the line. - */ /* XXX */ - trypos = NULL; - if (find_last_paren(l, '(', ')')) - trypos = find_match_paren( - curbuf->b_ind_maxparen); - - if (trypos == NULL && find_last_paren(l, '{', '}')) - trypos = find_start_brace(); - - if (trypos != NULL) - { - curwin->w_cursor.lnum = trypos->lnum + 1; - curwin->w_cursor.col = 0; - continue; - } - } - - /* it's a variable declaration, add indentation - * like in - * int a, - * b; - */ - if (cont_amount > 0) - amount = cont_amount; - else - amount += ind_continuation; - } - else if (lookfor == LOOKFOR_UNTERM) - { - if (cont_amount > 0) - amount = cont_amount; - else - amount += ind_continuation; - } - else - { - if (lookfor != LOOKFOR_TERM - && lookfor != LOOKFOR_CPP_BASECLASS - && lookfor != LOOKFOR_COMMA) - { - amount = scope_amount; - if (theline[0] == '{') - { - amount += curbuf->b_ind_open_extra; - added_to_amount = curbuf->b_ind_open_extra; - } - } - - if (lookfor_cpp_namespace) - { - /* - * Looking for C++ namespace, need to look further - * back. - */ - if (curwin->w_cursor.lnum == ourscope) - continue; - - if (curwin->w_cursor.lnum == 0 - || curwin->w_cursor.lnum - < ourscope - FIND_NAMESPACE_LIM) - break; - - l = ml_get_curline(); - - /* If we're in a comment or raw string now, skip - * to the start of it. */ - trypos = ind_find_start_CORS(NULL); - if (trypos != NULL) - { - curwin->w_cursor.lnum = trypos->lnum + 1; - curwin->w_cursor.col = 0; - continue; - } - - /* Skip preprocessor directives and blank lines. */ - if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum, - &amount)) - continue; - - /* Finally the actual check for "namespace". */ - if (cin_is_cpp_namespace(l)) - { - amount += curbuf->b_ind_cpp_namespace - - added_to_amount; - break; - } - else if (cin_is_cpp_extern_c(l)) - { - amount += curbuf->b_ind_cpp_extern_c - - added_to_amount; - break; - } - - if (cin_nocode(l)) - continue; - } - } - break; - } - - /* - * If we're in a comment or raw string now, skip to the start - * of it. - */ /* XXX */ - if ((trypos = ind_find_start_CORS(&raw_string_start)) != NULL) - { - curwin->w_cursor.lnum = trypos->lnum + 1; - curwin->w_cursor.col = 0; - continue; - } - - l = ml_get_curline(); - - /* - * If this is a switch() label, may line up relative to that. - * If this is a C++ scope declaration, do the same. - */ - iscase = cin_iscase(l, FALSE); - if (iscase || cin_isscopedecl(l)) - { - /* we are only looking for cpp base class - * declaration/initialization any longer */ - if (lookfor == LOOKFOR_CPP_BASECLASS) - break; - - /* When looking for a "do" we are not interested in - * labels. */ - if (whilelevel > 0) - continue; - - /* - * case xx: - * c = 99 + <- this indent plus continuation - *-> here; - */ - if (lookfor == LOOKFOR_UNTERM - || lookfor == LOOKFOR_ENUM_OR_INIT) - { - if (cont_amount > 0) - amount = cont_amount; - else - amount += ind_continuation; - break; - } - - /* - * case xx: <- line up with this case - * x = 333; - * case yy: - */ - if ( (iscase && lookfor == LOOKFOR_CASE) - || (iscase && lookfor_break) - || (!iscase && lookfor == LOOKFOR_SCOPEDECL)) - { - /* - * Check that this case label is not for another - * switch() - */ /* XXX */ - if ((trypos = find_start_brace()) == NULL - || trypos->lnum == ourscope) - { - amount = get_indent(); /* XXX */ - break; - } - continue; - } - - n = get_indent_nolabel(curwin->w_cursor.lnum); /* XXX */ - - /* - * case xx: if (cond) <- line up with this if - * y = y + 1; - * -> s = 99; - * - * case xx: - * if (cond) <- line up with this line - * y = y + 1; - * -> s = 99; - */ - if (lookfor == LOOKFOR_TERM) - { - if (n) - amount = n; - - if (!lookfor_break) - break; - } - - /* - * case xx: x = x + 1; <- line up with this x - * -> y = y + 1; - * - * case xx: if (cond) <- line up with this if - * -> y = y + 1; - */ - if (n) - { - amount = n; - l = after_label(ml_get_curline()); - if (l != NULL && cin_is_cinword(l)) - { - if (theline[0] == '{') - amount += curbuf->b_ind_open_extra; - else - amount += curbuf->b_ind_level - + curbuf->b_ind_no_brace; - } - break; - } - - /* - * Try to get the indent of a statement before the switch - * label. If nothing is found, line up relative to the - * switch label. - * break; <- may line up with this line - * case xx: - * -> y = 1; - */ - scope_amount = get_indent() + (iscase /* XXX */ - ? curbuf->b_ind_case_code - : curbuf->b_ind_scopedecl_code); - lookfor = curbuf->b_ind_case_break - ? LOOKFOR_NOBREAK : LOOKFOR_ANY; - continue; - } - - /* - * Looking for a switch() label or C++ scope declaration, - * ignore other lines, skip {}-blocks. - */ - if (lookfor == LOOKFOR_CASE || lookfor == LOOKFOR_SCOPEDECL) - { - if (find_last_paren(l, '{', '}') - && (trypos = find_start_brace()) != NULL) - { - curwin->w_cursor.lnum = trypos->lnum + 1; - curwin->w_cursor.col = 0; - } - continue; - } - - /* - * Ignore jump labels with nothing after them. - */ - if (!curbuf->b_ind_js && cin_islabel()) - { - l = after_label(ml_get_curline()); - if (l == NULL || cin_nocode(l)) - continue; - } - - /* - * Ignore #defines, #if, etc. - * Ignore comment and empty lines. - * (need to get the line again, cin_islabel() may have - * unlocked it) - */ - l = ml_get_curline(); - if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum, &amount) - || cin_nocode(l)) - continue; - - /* - * Are we at the start of a cpp base class declaration or - * constructor initialization? - */ /* XXX */ - n = FALSE; - if (lookfor != LOOKFOR_TERM && curbuf->b_ind_cpp_baseclass > 0) - { - n = cin_is_cpp_baseclass(&cache_cpp_baseclass); - l = ml_get_curline(); - } - if (n) - { - if (lookfor == LOOKFOR_UNTERM) - { - if (cont_amount > 0) - amount = cont_amount; - else - amount += ind_continuation; - } - else if (theline[0] == '{') - { - /* Need to find start of the declaration. */ - lookfor = LOOKFOR_UNTERM; - ind_continuation = 0; - continue; - } - else - /* XXX */ - amount = get_baseclass_amount( - cache_cpp_baseclass.lpos.col); - break; - } - else if (lookfor == LOOKFOR_CPP_BASECLASS) - { - /* only look, whether there is a cpp base class - * declaration or initialization before the opening brace. - */ - if (cin_isterminated(l, TRUE, FALSE)) - break; - else - continue; - } - - /* - * What happens next depends on the line being terminated. - * If terminated with a ',' only consider it terminating if - * there is another unterminated statement behind, eg: - * 123, - * sizeof - * here - * Otherwise check whether it is a enumeration or structure - * initialisation (not indented) or a variable declaration - * (indented). - */ - terminated = cin_isterminated(l, FALSE, TRUE); - - if (js_cur_has_key) - { - js_cur_has_key = 0; /* only check the first line */ - if (curbuf->b_ind_js && terminated == ',') - { - /* For Javascript we might be inside an object: - * key: something, <- align with this - * key: something - * or: - * key: something + <- align with this - * something, - * key: something - */ - lookfor = LOOKFOR_JS_KEY; - } - } - if (lookfor == LOOKFOR_JS_KEY && cin_has_js_key(l)) - { - amount = get_indent(); - break; - } - if (lookfor == LOOKFOR_COMMA) - { - if (tryposBrace != NULL && tryposBrace->lnum - >= curwin->w_cursor.lnum) - break; - if (terminated == ',') - /* line below current line is the one that starts a - * (possibly broken) line ending in a comma. */ - break; - else - { - amount = get_indent(); - if (curwin->w_cursor.lnum - 1 == ourscope) - /* line above is start of the scope, thus current - * line is the one that stars a (possibly broken) - * line ending in a comma. */ - break; - } - } - - if (terminated == 0 || (lookfor != LOOKFOR_UNTERM - && terminated == ',')) - { - if (lookfor != LOOKFOR_ENUM_OR_INIT && - (*skipwhite(l) == '[' || l[STRLEN(l) - 1] == '[')) - amount += ind_continuation; - /* - * if we're in the middle of a paren thing, - * go back to the line that starts it so - * we can get the right prevailing indent - * if ( foo && - * bar ) - */ - /* - * Position the cursor over the rightmost paren, so that - * matching it will take us back to the start of the line. - * Ignore a match before the start of the block. - */ - (void)find_last_paren(l, '(', ')'); - trypos = find_match_paren(corr_ind_maxparen(&cur_curpos)); - if (trypos != NULL && (trypos->lnum < tryposBrace->lnum - || (trypos->lnum == tryposBrace->lnum - && trypos->col < tryposBrace->col))) - trypos = NULL; - - /* - * If we are looking for ',', we also look for matching - * braces. - */ - if (trypos == NULL && terminated == ',' - && find_last_paren(l, '{', '}')) - trypos = find_start_brace(); - - if (trypos != NULL) - { - /* - * Check if we are on a case label now. This is - * handled above. - * case xx: if ( asdf && - * asdf) - */ - curwin->w_cursor = *trypos; - l = ml_get_curline(); - if (cin_iscase(l, FALSE) || cin_isscopedecl(l)) - { - ++curwin->w_cursor.lnum; - curwin->w_cursor.col = 0; - continue; - } - } - - /* - * Skip over continuation lines to find the one to get the - * indent from - * char *usethis = "bla\ - * bla", - * here; - */ - if (terminated == ',') - { - while (curwin->w_cursor.lnum > 1) - { - l = ml_get(curwin->w_cursor.lnum - 1); - if (*l == NUL || l[STRLEN(l) - 1] != '\\') - break; - --curwin->w_cursor.lnum; - curwin->w_cursor.col = 0; - } - } - - /* - * Get indent and pointer to text for current line, - * ignoring any jump label. XXX - */ - if (curbuf->b_ind_js) - cur_amount = get_indent(); - else - cur_amount = skip_label(curwin->w_cursor.lnum, &l); - /* - * If this is just above the line we are indenting, and it - * starts with a '{', line it up with this line. - * while (not) - * -> { - * } - */ - if (terminated != ',' && lookfor != LOOKFOR_TERM - && theline[0] == '{') - { - amount = cur_amount; - /* - * Only add b_ind_open_extra when the current line - * doesn't start with a '{', which must have a match - * in the same line (scope is the same). Probably: - * { 1, 2 }, - * -> { 3, 4 } - */ - if (*skipwhite(l) != '{') - amount += curbuf->b_ind_open_extra; - - if (curbuf->b_ind_cpp_baseclass && !curbuf->b_ind_js) - { - /* have to look back, whether it is a cpp base - * class declaration or initialization */ - lookfor = LOOKFOR_CPP_BASECLASS; - continue; - } - break; - } - - /* - * Check if we are after an "if", "while", etc. - * Also allow " } else". - */ - if (cin_is_cinword(l) || cin_iselse(skipwhite(l))) - { - /* - * Found an unterminated line after an if (), line up - * with the last one. - * if (cond) - * 100 + - * -> here; - */ - if (lookfor == LOOKFOR_UNTERM - || lookfor == LOOKFOR_ENUM_OR_INIT) - { - if (cont_amount > 0) - amount = cont_amount; - else - amount += ind_continuation; - break; - } - - /* - * If this is just above the line we are indenting, we - * are finished. - * while (not) - * -> here; - * Otherwise this indent can be used when the line - * before this is terminated. - * yyy; - * if (stat) - * while (not) - * xxx; - * -> here; - */ - amount = cur_amount; - if (theline[0] == '{') - amount += curbuf->b_ind_open_extra; - if (lookfor != LOOKFOR_TERM) - { - amount += curbuf->b_ind_level - + curbuf->b_ind_no_brace; - break; - } - - /* - * Special trick: when expecting the while () after a - * do, line up with the while() - * do - * x = 1; - * -> here - */ - l = skipwhite(ml_get_curline()); - if (cin_isdo(l)) - { - if (whilelevel == 0) - break; - --whilelevel; - } - - /* - * When searching for a terminated line, don't use the - * one between the "if" and the matching "else". - * Need to use the scope of this "else". XXX - * If whilelevel != 0 continue looking for a "do {". - */ - if (cin_iselse(l) && whilelevel == 0) - { - /* If we're looking at "} else", let's make sure we - * find the opening brace of the enclosing scope, - * not the one from "if () {". */ - if (*l == '}') - curwin->w_cursor.col = - (colnr_T)(l - ml_get_curline()) + 1; - - if ((trypos = find_start_brace()) == NULL - || find_match(LOOKFOR_IF, trypos->lnum) - == FAIL) - break; - } - } - - /* - * If we're below an unterminated line that is not an - * "if" or something, we may line up with this line or - * add something for a continuation line, depending on - * the line before this one. - */ - else - { - /* - * Found two unterminated lines on a row, line up with - * the last one. - * c = 99 + - * 100 + - * -> here; - */ - if (lookfor == LOOKFOR_UNTERM) - { - /* When line ends in a comma add extra indent */ - if (terminated == ',') - amount += ind_continuation; - break; - } - - if (lookfor == LOOKFOR_ENUM_OR_INIT) - { - /* Found two lines ending in ',', lineup with the - * lowest one, but check for cpp base class - * declaration/initialization, if it is an - * opening brace or we are looking just for - * enumerations/initializations. */ - if (terminated == ',') - { - if (curbuf->b_ind_cpp_baseclass == 0) - break; - - lookfor = LOOKFOR_CPP_BASECLASS; - continue; - } - - /* Ignore unterminated lines in between, but - * reduce indent. */ - if (amount > cur_amount) - amount = cur_amount; - } - else - { - /* - * Found first unterminated line on a row, may - * line up with this line, remember its indent - * 100 + - * -> here; - */ - l = ml_get_curline(); - amount = cur_amount; - - n = (int)STRLEN(l); - if (terminated == ',' && (*skipwhite(l) == ']' - || (n >=2 && l[n - 2] == ']'))) - break; - - /* - * If previous line ends in ',', check whether we - * are in an initialization or enum - * struct xxx = - * { - * sizeof a, - * 124 }; - * or a normal possible continuation line. - * but only, of no other statement has been found - * yet. - */ - if (lookfor == LOOKFOR_INITIAL && terminated == ',') - { - if (curbuf->b_ind_js) - { - /* Search for a line ending in a comma - * and line up with the line below it - * (could be the current line). - * some = [ - * 1, <- line up here - * 2, - * some = [ - * 3 + <- line up here - * 4 * - * 5, - * 6, - */ - if (cin_iscomment(skipwhite(l))) - break; - lookfor = LOOKFOR_COMMA; - trypos = find_match_char('[', - curbuf->b_ind_maxparen); - if (trypos != NULL) - { - if (trypos->lnum - == curwin->w_cursor.lnum - 1) - { - /* Current line is first inside - * [], line up with it. */ - break; - } - ourscope = trypos->lnum; - } - } - else - { - lookfor = LOOKFOR_ENUM_OR_INIT; - cont_amount = cin_first_id_amount(); - } - } - else - { - if (lookfor == LOOKFOR_INITIAL - && *l != NUL - && l[STRLEN(l) - 1] == '\\') - /* XXX */ - cont_amount = cin_get_equal_amount( - curwin->w_cursor.lnum); - if (lookfor != LOOKFOR_TERM - && lookfor != LOOKFOR_JS_KEY - && lookfor != LOOKFOR_COMMA - && raw_string_start != curwin->w_cursor.lnum) - lookfor = LOOKFOR_UNTERM; - } - } - } - } - - /* - * Check if we are after a while (cond); - * If so: Ignore until the matching "do". - */ - else if (cin_iswhileofdo_end(terminated)) /* XXX */ - { - /* - * Found an unterminated line after a while ();, line up - * with the last one. - * while (cond); - * 100 + <- line up with this one - * -> here; - */ - if (lookfor == LOOKFOR_UNTERM - || lookfor == LOOKFOR_ENUM_OR_INIT) - { - if (cont_amount > 0) - amount = cont_amount; - else - amount += ind_continuation; - break; - } - - if (whilelevel == 0) - { - lookfor = LOOKFOR_TERM; - amount = get_indent(); /* XXX */ - if (theline[0] == '{') - amount += curbuf->b_ind_open_extra; - } - ++whilelevel; - } - - /* - * We are after a "normal" statement. - * If we had another statement we can stop now and use the - * indent of that other statement. - * Otherwise the indent of the current statement may be used, - * search backwards for the next "normal" statement. - */ - else - { - /* - * Skip single break line, if before a switch label. It - * may be lined up with the case label. - */ - if (lookfor == LOOKFOR_NOBREAK - && cin_isbreak(skipwhite(ml_get_curline()))) - { - lookfor = LOOKFOR_ANY; - continue; - } - - /* - * Handle "do {" line. - */ - if (whilelevel > 0) - { - l = cin_skipcomment(ml_get_curline()); - if (cin_isdo(l)) - { - amount = get_indent(); /* XXX */ - --whilelevel; - continue; - } - } - - /* - * Found a terminated line above an unterminated line. Add - * the amount for a continuation line. - * x = 1; - * y = foo + - * -> here; - * or - * int x = 1; - * int foo, - * -> here; - */ - if (lookfor == LOOKFOR_UNTERM - || lookfor == LOOKFOR_ENUM_OR_INIT) - { - if (cont_amount > 0) - amount = cont_amount; - else - amount += ind_continuation; - break; - } - - /* - * Found a terminated line above a terminated line or "if" - * etc. line. Use the amount of the line below us. - * x = 1; x = 1; - * if (asdf) y = 2; - * while (asdf) ->here; - * here; - * ->foo; - */ - if (lookfor == LOOKFOR_TERM) - { - if (!lookfor_break && whilelevel == 0) - break; - } - - /* - * First line above the one we're indenting is terminated. - * To know what needs to be done look further backward for - * a terminated line. - */ - else - { - /* - * position the cursor over the rightmost paren, so - * that matching it will take us back to the start of - * the line. Helps for: - * func(asdr, - * asdfasdf); - * here; - */ -term_again: - l = ml_get_curline(); - if (find_last_paren(l, '(', ')') - && (trypos = find_match_paren( - curbuf->b_ind_maxparen)) != NULL) - { - /* - * Check if we are on a case label now. This is - * handled above. - * case xx: if ( asdf && - * asdf) - */ - curwin->w_cursor = *trypos; - l = ml_get_curline(); - if (cin_iscase(l, FALSE) || cin_isscopedecl(l)) - { - ++curwin->w_cursor.lnum; - curwin->w_cursor.col = 0; - continue; - } - } - - /* When aligning with the case statement, don't align - * with a statement after it. - * case 1: { <-- don't use this { position - * stat; - * } - * case 2: - * stat; - * } - */ - iscase = (curbuf->b_ind_keep_case_label - && cin_iscase(l, FALSE)); - - /* - * Get indent and pointer to text for current line, - * ignoring any jump label. - */ - amount = skip_label(curwin->w_cursor.lnum, &l); - - if (theline[0] == '{') - amount += curbuf->b_ind_open_extra; - /* See remark above: "Only add b_ind_open_extra.." */ - l = skipwhite(l); - if (*l == '{') - amount -= curbuf->b_ind_open_extra; - lookfor = iscase ? LOOKFOR_ANY : LOOKFOR_TERM; - - /* - * When a terminated line starts with "else" skip to - * the matching "if": - * else 3; - * indent this; - * Need to use the scope of this "else". XXX - * If whilelevel != 0 continue looking for a "do {". - */ - if (lookfor == LOOKFOR_TERM - && *l != '}' - && cin_iselse(l) - && whilelevel == 0) - { - if ((trypos = find_start_brace()) == NULL - || find_match(LOOKFOR_IF, trypos->lnum) - == FAIL) - break; - continue; - } - - /* - * If we're at the end of a block, skip to the start of - * that block. - */ - l = ml_get_curline(); - if (find_last_paren(l, '{', '}') /* XXX */ - && (trypos = find_start_brace()) != NULL) - { - curwin->w_cursor = *trypos; - /* if not "else {" check for terminated again */ - /* but skip block for "} else {" */ - l = cin_skipcomment(ml_get_curline()); - if (*l == '}' || !cin_iselse(l)) - goto term_again; - ++curwin->w_cursor.lnum; - curwin->w_cursor.col = 0; - } - } - } - } - } - } - - /* add extra indent for a comment */ - if (cin_iscomment(theline)) - amount += curbuf->b_ind_comment; - - /* subtract extra left-shift for jump labels */ - if (curbuf->b_ind_jump_label > 0 && original_line_islabel) - amount -= curbuf->b_ind_jump_label; - - goto theend; - } - - /* - * ok -- we're not inside any sort of structure at all! - * - * This means we're at the top level, and everything should - * basically just match where the previous line is, except - * for the lines immediately following a function declaration, - * which are K&R-style parameters and need to be indented. - * - * if our line starts with an open brace, forget about any - * prevailing indent and make sure it looks like the start - * of a function - */ - - if (theline[0] == '{') - { - amount = curbuf->b_ind_first_open; - goto theend; - } - - /* - * If the NEXT line is a function declaration, the current - * line needs to be indented as a function type spec. - * Don't do this if the current line looks like a comment or if the - * current line is terminated, ie. ends in ';', or if the current line - * contains { or }: "void f() {\n if (1)" - */ - if (cur_curpos.lnum < curbuf->b_ml.ml_line_count - && !cin_nocode(theline) - && vim_strchr(theline, '{') == NULL - && vim_strchr(theline, '}') == NULL - && !cin_ends_in(theline, (char_u *)":", NULL) - && !cin_ends_in(theline, (char_u *)",", NULL) - && cin_isfuncdecl(NULL, cur_curpos.lnum + 1, - cur_curpos.lnum + 1) - && !cin_isterminated(theline, FALSE, TRUE)) - { - amount = curbuf->b_ind_func_type; - goto theend; - } - - /* search backwards until we find something we recognize */ - amount = 0; - curwin->w_cursor = cur_curpos; - while (curwin->w_cursor.lnum > 1) - { - curwin->w_cursor.lnum--; - curwin->w_cursor.col = 0; - - l = ml_get_curline(); - - /* - * If we're in a comment or raw string now, skip to the start - * of it. - */ /* XXX */ - if ((trypos = ind_find_start_CORS(NULL)) != NULL) - { - curwin->w_cursor.lnum = trypos->lnum + 1; - curwin->w_cursor.col = 0; - continue; - } - - /* - * Are we at the start of a cpp base class declaration or - * constructor initialization? - */ /* XXX */ - n = FALSE; - if (curbuf->b_ind_cpp_baseclass != 0 && theline[0] != '{') - { - n = cin_is_cpp_baseclass(&cache_cpp_baseclass); - l = ml_get_curline(); - } - if (n) - { - /* XXX */ - amount = get_baseclass_amount(cache_cpp_baseclass.lpos.col); - break; - } - - /* - * Skip preprocessor directives and blank lines. - */ - if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum, &amount)) - continue; - - if (cin_nocode(l)) - continue; - - /* - * If the previous line ends in ',', use one level of - * indentation: - * int foo, - * bar; - * do this before checking for '}' in case of eg. - * enum foobar - * { - * ... - * } foo, - * bar; - */ - n = 0; - if (cin_ends_in(l, (char_u *)",", NULL) - || (*l != NUL && (n = l[STRLEN(l) - 1]) == '\\')) - { - /* take us back to opening paren */ - if (find_last_paren(l, '(', ')') - && (trypos = find_match_paren( - curbuf->b_ind_maxparen)) != NULL) - curwin->w_cursor = *trypos; - - /* For a line ending in ',' that is a continuation line go - * back to the first line with a backslash: - * char *foo = "bla\ - * bla", - * here; - */ - while (n == 0 && curwin->w_cursor.lnum > 1) - { - l = ml_get(curwin->w_cursor.lnum - 1); - if (*l == NUL || l[STRLEN(l) - 1] != '\\') - break; - --curwin->w_cursor.lnum; - curwin->w_cursor.col = 0; - } - - amount = get_indent(); /* XXX */ - - if (amount == 0) - amount = cin_first_id_amount(); - if (amount == 0) - amount = ind_continuation; - break; - } - - /* - * If the line looks like a function declaration, and we're - * not in a comment, put it the left margin. - */ - if (cin_isfuncdecl(NULL, cur_curpos.lnum, 0)) /* XXX */ - break; - l = ml_get_curline(); - - /* - * Finding the closing '}' of a previous function. Put - * current line at the left margin. For when 'cino' has "fs". - */ - if (*skipwhite(l) == '}') - break; - - /* (matching {) - * If the previous line ends on '};' (maybe followed by - * comments) align at column 0. For example: - * char *string_array[] = { "foo", - * / * x * / "b};ar" }; / * foobar * / - */ - if (cin_ends_in(l, (char_u *)"};", NULL)) - break; - - /* - * If the previous line ends on '[' we are probably in an - * array constant: - * something = [ - * 234, <- extra indent - */ - if (cin_ends_in(l, (char_u *)"[", NULL)) - { - amount = get_indent() + ind_continuation; - break; - } - - /* - * Find a line only has a semicolon that belongs to a previous - * line ending in '}', e.g. before an #endif. Don't increase - * indent then. - */ - if (*(look = skipwhite(l)) == ';' && cin_nocode(look + 1)) - { - pos_T curpos_save = curwin->w_cursor; - - while (curwin->w_cursor.lnum > 1) - { - look = ml_get(--curwin->w_cursor.lnum); - if (!(cin_nocode(look) || cin_ispreproc_cont( - &look, &curwin->w_cursor.lnum, &amount))) - break; - } - if (curwin->w_cursor.lnum > 0 - && cin_ends_in(look, (char_u *)"}", NULL)) - break; - - curwin->w_cursor = curpos_save; - } - - /* - * If the PREVIOUS line is a function declaration, the current - * line (and the ones that follow) needs to be indented as - * parameters. - */ - if (cin_isfuncdecl(&l, curwin->w_cursor.lnum, 0)) - { - amount = curbuf->b_ind_param; - break; - } - - /* - * If the previous line ends in ';' and the line before the - * previous line ends in ',' or '\', ident to column zero: - * int foo, - * bar; - * indent_to_0 here; - */ - if (cin_ends_in(l, (char_u *)";", NULL)) - { - l = ml_get(curwin->w_cursor.lnum - 1); - if (cin_ends_in(l, (char_u *)",", NULL) - || (*l != NUL && l[STRLEN(l) - 1] == '\\')) - break; - l = ml_get_curline(); - } - - /* - * Doesn't look like anything interesting -- so just - * use the indent of this line. - * - * Position the cursor over the rightmost paren, so that - * matching it will take us back to the start of the line. - */ - find_last_paren(l, '(', ')'); - - if ((trypos = find_match_paren(curbuf->b_ind_maxparen)) != NULL) - curwin->w_cursor = *trypos; - amount = get_indent(); /* XXX */ - break; - } - - /* add extra indent for a comment */ - if (cin_iscomment(theline)) - amount += curbuf->b_ind_comment; - - /* add extra indent if the previous line ended in a backslash: - * "asdfasdf\ - * here"; - * char *foo = "asdf\ - * here"; - */ - if (cur_curpos.lnum > 1) - { - l = ml_get(cur_curpos.lnum - 1); - if (*l != NUL && l[STRLEN(l) - 1] == '\\') - { - cur_amount = cin_get_equal_amount(cur_curpos.lnum - 1); - if (cur_amount > 0) - amount = cur_amount; - else if (cur_amount == 0) - amount += ind_continuation; - } - } - -theend: - if (amount < 0) - amount = 0; - -laterend: - /* put the cursor back where it belongs */ - curwin->w_cursor = cur_curpos; - - vim_free(linecopy); - - return amount; -} - - static int -find_match(int lookfor, linenr_T ourscope) -{ - char_u *look; - pos_T *theirscope; - char_u *mightbeif; - int elselevel; - int whilelevel; - - if (lookfor == LOOKFOR_IF) - { - elselevel = 1; - whilelevel = 0; - } - else - { - elselevel = 0; - whilelevel = 1; - } - - curwin->w_cursor.col = 0; - - while (curwin->w_cursor.lnum > ourscope + 1) - { - curwin->w_cursor.lnum--; - curwin->w_cursor.col = 0; - - look = cin_skipcomment(ml_get_curline()); - if (cin_iselse(look) - || cin_isif(look) - || cin_isdo(look) /* XXX */ - || cin_iswhileofdo(look, curwin->w_cursor.lnum)) - { - /* - * if we've gone outside the braces entirely, - * we must be out of scope... - */ - theirscope = find_start_brace(); /* XXX */ - if (theirscope == NULL) - break; - - /* - * and if the brace enclosing this is further - * back than the one enclosing the else, we're - * out of luck too. - */ - if (theirscope->lnum < ourscope) - break; - - /* - * and if they're enclosed in a *deeper* brace, - * then we can ignore it because it's in a - * different scope... - */ - if (theirscope->lnum > ourscope) - continue; - - /* - * if it was an "else" (that's not an "else if") - * then we need to go back to another if, so - * increment elselevel - */ - look = cin_skipcomment(ml_get_curline()); - if (cin_iselse(look)) - { - mightbeif = cin_skipcomment(look + 4); - if (!cin_isif(mightbeif)) - ++elselevel; - continue; - } - - /* - * if it was a "while" then we need to go back to - * another "do", so increment whilelevel. XXX - */ - if (cin_iswhileofdo(look, curwin->w_cursor.lnum)) - { - ++whilelevel; - continue; - } - - /* If it's an "if" decrement elselevel */ - look = cin_skipcomment(ml_get_curline()); - if (cin_isif(look)) - { - elselevel--; - /* - * When looking for an "if" ignore "while"s that - * get in the way. - */ - if (elselevel == 0 && lookfor == LOOKFOR_IF) - whilelevel = 0; - } - - /* If it's a "do" decrement whilelevel */ - if (cin_isdo(look)) - whilelevel--; - - /* - * if we've used up all the elses, then - * this must be the if that we want! - * match the indent level of that if. - */ - if (elselevel <= 0 && whilelevel <= 0) - { - return OK; - } - } - } - return FAIL; -} - -# if defined(FEAT_EVAL) || defined(PROTO) -/* - * Get indent level from 'indentexpr'. - */ - int -get_expr_indent(void) -{ - int indent = -1; - char_u *inde_copy; - pos_T save_pos; - colnr_T save_curswant; - int save_set_curswant; - int save_State; - int use_sandbox = was_set_insecurely((char_u *)"indentexpr", - OPT_LOCAL); - - /* Save and restore cursor position and curswant, in case it was changed - * via :normal commands */ - save_pos = curwin->w_cursor; - save_curswant = curwin->w_curswant; - save_set_curswant = curwin->w_set_curswant; - set_vim_var_nr(VV_LNUM, curwin->w_cursor.lnum); - if (use_sandbox) - ++sandbox; - ++textlock; - - /* Need to make a copy, the 'indentexpr' option could be changed while - * evaluating it. */ - inde_copy = vim_strsave(curbuf->b_p_inde); - if (inde_copy != NULL) - { - indent = (int)eval_to_number(inde_copy); - vim_free(inde_copy); - } - - if (use_sandbox) - --sandbox; - --textlock; - - /* Restore the cursor position so that 'indentexpr' doesn't need to. - * Pretend to be in Insert mode, allow cursor past end of line for "o" - * command. */ - save_State = State; - State = INSERT; - curwin->w_cursor = save_pos; - curwin->w_curswant = save_curswant; - curwin->w_set_curswant = save_set_curswant; - check_cursor(); - State = save_State; - - /* If there is an error, just keep the current indent. */ - if (indent < 0) - indent = get_indent(); - - return indent; -} -# endif - -#endif /* FEAT_CINDENT */ - -#if defined(FEAT_LISP) || defined(PROTO) - - static int -lisp_match(char_u *p) -{ - char_u buf[LSIZE]; - int len; - char_u *word = *curbuf->b_p_lw != NUL ? curbuf->b_p_lw : p_lispwords; - - while (*word != NUL) - { - (void)copy_option_part(&word, buf, LSIZE, ","); - len = (int)STRLEN(buf); - if (STRNCMP(buf, p, len) == 0 && p[len] == ' ') - return TRUE; - } - return FALSE; -} - -/* - * When 'p' is present in 'cpoptions, a Vi compatible method is used. - * The incompatible newer method is quite a bit better at indenting - * code in lisp-like languages than the traditional one; it's still - * mostly heuristics however -- Dirk van Deun, dirk@rave.org - * - * TODO: - * Findmatch() should be adapted for lisp, also to make showmatch - * work correctly: now (v5.3) it seems all C/C++ oriented: - * - it does not recognize the #\( and #\) notations as character literals - * - it doesn't know about comments starting with a semicolon - * - it incorrectly interprets '(' as a character literal - * All this messes up get_lisp_indent in some rare cases. - * Update from Sergey Khorev: - * I tried to fix the first two issues. - */ - int -get_lisp_indent(void) -{ - pos_T *pos, realpos, paren; - int amount; - char_u *that; - colnr_T col; - colnr_T firsttry; - int parencount, quotecount; - int vi_lisp; - - /* Set vi_lisp to use the vi-compatible method */ - vi_lisp = (vim_strchr(p_cpo, CPO_LISP) != NULL); - - realpos = curwin->w_cursor; - curwin->w_cursor.col = 0; - - if ((pos = findmatch(NULL, '(')) == NULL) - pos = findmatch(NULL, '['); - else - { - paren = *pos; - pos = findmatch(NULL, '['); - if (pos == NULL || LT_POSP(pos, &paren)) - pos = &paren; - } - if (pos != NULL) - { - /* Extra trick: Take the indent of the first previous non-white - * line that is at the same () level. */ - amount = -1; - parencount = 0; - - while (--curwin->w_cursor.lnum >= pos->lnum) - { - if (linewhite(curwin->w_cursor.lnum)) - continue; - for (that = ml_get_curline(); *that != NUL; ++that) - { - if (*that == ';') - { - while (*(that + 1) != NUL) - ++that; - continue; - } - if (*that == '\\') - { - if (*(that + 1) != NUL) - ++that; - continue; - } - if (*that == '"' && *(that + 1) != NUL) - { - while (*++that && *that != '"') - { - /* skipping escaped characters in the string */ - if (*that == '\\') - { - if (*++that == NUL) - break; - if (that[1] == NUL) - { - ++that; - break; - } - } - } - } - if (*that == '(' || *that == '[') - ++parencount; - else if (*that == ')' || *that == ']') - --parencount; - } - if (parencount == 0) - { - amount = get_indent(); - break; - } - } - - if (amount == -1) - { - curwin->w_cursor.lnum = pos->lnum; - curwin->w_cursor.col = pos->col; - col = pos->col; - - that = ml_get_curline(); - - if (vi_lisp && get_indent() == 0) - amount = 2; - else - { - char_u *line = that; - - amount = 0; - while (*that && col) - { - amount += lbr_chartabsize_adv(line, &that, (colnr_T)amount); - col--; - } - - /* - * Some keywords require "body" indenting rules (the - * non-standard-lisp ones are Scheme special forms): - * - * (let ((a 1)) instead (let ((a 1)) - * (...)) of (...)) - */ - - if (!vi_lisp && (*that == '(' || *that == '[') - && lisp_match(that + 1)) - amount += 2; - else - { - that++; - amount++; - firsttry = amount; - - while (VIM_ISWHITE(*that)) - { - amount += lbr_chartabsize(line, that, (colnr_T)amount); - ++that; - } - - if (*that && *that != ';') /* not a comment line */ - { - /* test *that != '(' to accommodate first let/do - * argument if it is more than one line */ - if (!vi_lisp && *that != '(' && *that != '[') - firsttry++; - - parencount = 0; - quotecount = 0; - - if (vi_lisp - || (*that != '"' - && *that != '\'' - && *that != '#' - && (*that < '0' || *that > '9'))) - { - while (*that - && (!VIM_ISWHITE(*that) - || quotecount - || parencount) - && (!((*that == '(' || *that == '[') - && !quotecount - && !parencount - && vi_lisp))) - { - if (*that == '"') - quotecount = !quotecount; - if ((*that == '(' || *that == '[') - && !quotecount) - ++parencount; - if ((*that == ')' || *that == ']') - && !quotecount) - --parencount; - if (*that == '\\' && *(that+1) != NUL) - amount += lbr_chartabsize_adv( - line, &that, (colnr_T)amount); - amount += lbr_chartabsize_adv( - line, &that, (colnr_T)amount); - } - } - while (VIM_ISWHITE(*that)) - { - amount += lbr_chartabsize( - line, that, (colnr_T)amount); - that++; - } - if (!*that || *that == ';') - amount = firsttry; - } - } - } - } - } - else - amount = 0; /* no matching '(' or '[' found, use zero indent */ - - curwin->w_cursor = realpos; - - return amount; -} -#endif /* FEAT_LISP */ - void prepare_to_exit(void) {