Mercurial > vim
view src/cindent.c @ 21901:1ebcce655dd3 v8.2.1500
patch 8.2.1500: Vim9: error when using address without a command
Commit: https://github.com/vim/vim/commit/5d72ce69c8783fd8f1a0355c00806c5084010eec
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Aug 20 23:04:06 2020 +0200
patch 8.2.1500: Vim9: error when using address without a command
Problem: Vim9: error when using address without a command.
Solution: Execute the range itself. (closes https://github.com/vim/vim/issues/6747)
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Thu, 20 Aug 2020 23:15:03 +0200 |
parents | d30b16692ce0 |
children | b545334ae654 |
line wrap: on
line source
/* vi:set ts=8 sts=4 sw=4 noet: * * VIM - Vi IMproved by Bram Moolenaar * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ /* * cindent.c: C indentation related functions * * Many of C-indenting functions originally come from Eric Fischer. * * Below "XXX" means that this function may unlock the current line. */ #include "vim.h" // values for the "lookfor" state #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 #if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT) /* * Return TRUE if the string "line" starts with a word from 'cinwords'. */ 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(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 #if defined(FEAT_CINDENT) || defined(FEAT_SYN_HL) /* * 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; } /* * 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 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; } /* * 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; } #endif // FEAT_CINDENT || FEAT_SYN_HL #if defined(FEAT_CINDENT) || defined(PROTO) /* * Return TRUE if C-indenting is on. */ int cindent_on(void) { return (!p_paste && (curbuf->b_p_cin # ifdef FEAT_EVAL || *curbuf->b_p_inde != NUL # endif )); } // Find result cache for cpp_baseclass typedef struct { int found; lpos_T lpos; } cpp_baseclass_cache_T; /* * 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; } /* * 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] == '/'); } /* * 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 "public/private/protected" scope declaration label. */ static 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] != ':'); } /* * 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; } 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])); } /* * 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; } /* * 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])); } /* * 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 switch label: "case .*:" or "default:". */ static 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 == NUL) break; 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 label: "label:". * Note: curwin->w_cursor must be where we are looking for the label. */ static 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; } /* * 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; } /* * 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; } // 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; } /* * 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); } 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. * Return NULL if no match found. */ static pos_T * find_match_paren(int ind_maxparen) // XXX { return find_match_char('(', 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; } /* * 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) && {backslash} // 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_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; } /* * 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 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; } /* * 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 parenthesis. buf->b_ind_unclosed = sw * 2; // Spaces from the indent of the line with an unclosed parenthesis, 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 parenthesis. 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; // Handle C #pragma directives buf->b_ind_pragma = 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; case 'P': buf->b_ind_pragma = n; break; } if (*p == ',') ++p; } } 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; } /* * 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; 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 go at the left when included in 'cinkeys', // exluding pragmas when customized in 'cinoptions' if (*theline == '#' && (*linecopy == '#' || in_cinkeys('#', ' ', TRUE))) { char_u *directive = skipwhite(theline + 1); if (curbuf->b_ind_pragma == 0 || STRNCMP(directive, "pragma", 6) != 0) { 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 an 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 is an 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 an 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{backslash} // 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{backslash} // 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{backslash} // here"; // char *foo = "asdf{backslash} // 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; } /* * return TRUE if 'cinkeys' contains the key "keytyped", * when == '*': Only if key is preceded with '*' (indent before insert) * when == '!': Only if key is preceded with '!' (don't insert) * when == ' ': Only if key is not preceded with '*'(indent afterwards) * * "keytyped" can have a few special values: * KEY_OPEN_FORW * KEY_OPEN_BACK * KEY_COMPLETE just finished completion. * * If line_is_empty is TRUE accept keys with '0' before them. */ int in_cinkeys( int keytyped, int when, int line_is_empty) { char_u *look; int try_match; int try_match_word; char_u *p; char_u *line; int icase; int i; if (keytyped == NUL) // Can happen with CTRL-Y and CTRL-E on a short line. return FALSE; #ifdef FEAT_EVAL if (*curbuf->b_p_inde != NUL) look = curbuf->b_p_indk; // 'indentexpr' set: use 'indentkeys' else #endif look = curbuf->b_p_cink; // 'indentexpr' empty: use 'cinkeys' while (*look) { // Find out if we want to try a match with this key, depending on // 'when' and a '*' or '!' before the key. switch (when) { case '*': try_match = (*look == '*'); break; case '!': try_match = (*look == '!'); break; default: try_match = (*look != '*'); break; } if (*look == '*' || *look == '!') ++look; // If there is a '0', only accept a match if the line is empty. // But may still match when typing last char of a word. if (*look == '0') { try_match_word = try_match; if (!line_is_empty) try_match = FALSE; ++look; } else try_match_word = FALSE; // does it look like a control character? if (*look == '^' #ifdef EBCDIC && (Ctrl_chr(look[1]) != 0) #else && look[1] >= '?' && look[1] <= '_' #endif ) { if (try_match && keytyped == Ctrl_chr(look[1])) return TRUE; look += 2; } // 'o' means "o" command, open forward. // 'O' means "O" command, open backward. else if (*look == 'o') { if (try_match && keytyped == KEY_OPEN_FORW) return TRUE; ++look; } else if (*look == 'O') { if (try_match && keytyped == KEY_OPEN_BACK) return TRUE; ++look; } // 'e' means to check for "else" at start of line and just before the // cursor. else if (*look == 'e') { if (try_match && keytyped == 'e' && curwin->w_cursor.col >= 4) { p = ml_get_curline(); if (skipwhite(p) == p + curwin->w_cursor.col - 4 && STRNCMP(p + curwin->w_cursor.col - 4, "else", 4) == 0) return TRUE; } ++look; } // ':' only causes an indent if it is at the end of a label or case // statement, or when it was before typing the ':' (to fix // class::method for C++). else if (*look == ':') { if (try_match && keytyped == ':') { p = ml_get_curline(); if (cin_iscase(p, FALSE) || cin_isscopedecl(p) || cin_islabel()) return TRUE; // Need to get the line again after cin_islabel(). p = ml_get_curline(); if (curwin->w_cursor.col > 2 && p[curwin->w_cursor.col - 1] == ':' && p[curwin->w_cursor.col - 2] == ':') { p[curwin->w_cursor.col - 1] = ' '; i = (cin_iscase(p, FALSE) || cin_isscopedecl(p) || cin_islabel()); p = ml_get_curline(); p[curwin->w_cursor.col - 1] = ':'; if (i) return TRUE; } } ++look; } // Is it a key in <>, maybe? else if (*look == '<') { if (try_match) { // make up some named keys <o>, <O>, <e>, <0>, <>>, <<>, <*>, // <:> and <!> so that people can re-indent on o, O, e, 0, <, // >, *, : and ! keys if they really really want to. if (vim_strchr((char_u *)"<>!*oOe0:", look[1]) != NULL && keytyped == look[1]) return TRUE; if (keytyped == get_special_key_code(look + 1)) return TRUE; } while (*look && *look != '>') look++; while (*look == '>') look++; } // Is it a word: "=word"? else if (*look == '=' && look[1] != ',' && look[1] != NUL) { ++look; if (*look == '~') { icase = TRUE; ++look; } else icase = FALSE; p = vim_strchr(look, ','); if (p == NULL) p = look + STRLEN(look); if ((try_match || try_match_word) && curwin->w_cursor.col >= (colnr_T)(p - look)) { int match = FALSE; if (keytyped == KEY_COMPLETE) { char_u *s; // Just completed a word, check if it starts with "look". // search back for the start of a word. line = ml_get_curline(); if (has_mbyte) { char_u *n; for (s = line + curwin->w_cursor.col; s > line; s = n) { n = mb_prevptr(line, s); if (!vim_iswordp(n)) break; } } else for (s = line + curwin->w_cursor.col; s > line; --s) if (!vim_iswordc(s[-1])) break; if (s + (p - look) <= line + curwin->w_cursor.col && (icase ? MB_STRNICMP(s, look, p - look) : STRNCMP(s, look, p - look)) == 0) match = TRUE; } else // TODO: multi-byte if (keytyped == (int)p[-1] || (icase && keytyped < 256 && TOLOWER_LOC(keytyped) == TOLOWER_LOC((int)p[-1]))) { line = ml_get_cursor(); if ((curwin->w_cursor.col == (colnr_T)(p - look) || !vim_iswordc(line[-(p - look) - 1])) && (icase ? MB_STRNICMP(line - (p - look), look, p - look) : STRNCMP(line - (p - look), look, p - look)) == 0) match = TRUE; } if (match && try_match_word && !try_match) { // "0=word": Check if there are only blanks before the // word. if (getwhitecols_curline() != (int)(curwin->w_cursor.col - (p - look))) match = FALSE; } if (match) return TRUE; } look = p; } // ok, it's a boring generic character. else { if (try_match && *look == keytyped) return TRUE; if (*look != NUL) ++look; } // Skip over ", ". look = skip_to_option_part(look); } return FALSE; } /* * 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); } #endif #if defined(FEAT_EVAL) || defined(PROTO) /* * "cindent(lnum)" function */ void f_cindent(typval_T *argvars UNUSED, typval_T *rettv) { # ifdef FEAT_CINDENT pos_T pos; linenr_T lnum; pos = curwin->w_cursor; lnum = tv_get_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) { curwin->w_cursor.lnum = lnum; rettv->vval.v_number = get_c_indent(); curwin->w_cursor = pos; } else # endif rettv->vval.v_number = -1; } #endif