From 4b47162ccede0b6d9cbb9473ad870220a24fbf54 Mon Sep 17 00:00:00 2001 From: Bram Moolenaar Date: Thu, 31 Jan 2019 13:48:09 +0100 Subject: 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) --- src/misc1.c | 4346 ----------------------------------------------------------- 1 file changed, 4346 deletions(-) (limited to 'src/misc1.c') diff --git a/src/misc1.c b/src/misc1.c index 1db7496c07..26b570bcb0 100644 --- 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