diff options
Diffstat (limited to 'src/nvim/syntax.c')
| -rw-r--r-- | src/nvim/syntax.c | 121 |
1 files changed, 59 insertions, 62 deletions
diff --git a/src/nvim/syntax.c b/src/nvim/syntax.c index 49f54dcfe1..ecbfbf8a93 100644 --- a/src/nvim/syntax.c +++ b/src/nvim/syntax.c @@ -230,11 +230,10 @@ struct name_list { static char *(spo_name_tab[SPO_COUNT]) = { "ms=", "me=", "hs=", "he=", "rs=", "re=", "lc=" }; -/* The sp_off_flags are computed like this: - * offset from the start of the matched text: (1 << SPO_XX_OFF) - * offset from the end of the matched text: (1 << (SPO_XX_OFF + SPO_COUNT)) - * When both are present, only one is used. - */ +// The sp_off_flags are computed like this: +// offset from the start of the matched text: (1 << SPO_XX_OFF) +// offset from the end of the matched text: (1 << (SPO_XX_OFF + SPO_COUNT)) +// When both are present, only one is used. #define SPTYPE_MATCH 1 // match keyword with this group ID #define SPTYPE_START 2 // match a regexp, start of item @@ -345,7 +344,7 @@ static int next_seqnr = 1; // value to use for si_seqnr */ static int next_match_col; // column for start of next match static lpos_T next_match_m_endpos; // position for end of next match -static lpos_T next_match_h_startpos; // pos. for highl. start of next match +static lpos_T next_match_h_startpos; // pos. for highl. start of next match static lpos_T next_match_h_endpos; // pos. for highl. end of next match static int next_match_idx; // index of matched item static long next_match_flags; // flags for next match @@ -492,8 +491,8 @@ void syntax_start(win_T *wp, linenr_T lnum) // First line is always valid, no matter "minlines". first_stored = 1; } else { - /* Need to parse "minlines" lines before state can be considered - * valid to store. */ + // Need to parse "minlines" lines before state can be considered + // valid to store. first_stored = current_lnum + syn_block->b_syn_sync_minlines; } } else { @@ -514,12 +513,12 @@ void syntax_start(win_T *wp, linenr_T lnum) (void)syn_finish_line(false); current_lnum++; - /* If we parsed at least "minlines" lines or started at a valid - * state, the current state is considered valid. */ + // If we parsed at least "minlines" lines or started at a valid + // state, the current state is considered valid. if (current_lnum >= first_stored) { - /* Check if the saved state entry is for the current line and is - * equal to the current state. If so, then validate all saved - * states that depended on a change before the parsed line. */ + // Check if the saved state entry is for the current line and is + // equal to the current state. If so, then validate all saved + // states that depended on a change before the parsed line. if (prev == NULL) { prev = syn_stack_find_entry(current_lnum - 1); } @@ -548,19 +547,18 @@ void syntax_start(win_T *wp, linenr_T lnum) sp = sp->sst_next; } load_current_state(prev); - } - /* Store the state at this line when it's the first one, the line - * where we start parsing, or some distance from the previously - * saved state. But only when parsed at least 'minlines'. */ - else if (prev == NULL - || current_lnum == lnum - || current_lnum >= prev->sst_lnum + dist) { + } else if (prev == NULL + // Store the state at this line when it's the first one, the line + // where we start parsing, or some distance from the previously + // saved state. But only when parsed at least 'minlines'. + || current_lnum == lnum + || current_lnum >= prev->sst_lnum + dist) { prev = store_current_state(); } } - /* This can take a long time: break when CTRL-C pressed. The current - * state will be wrong then. */ + // This can take a long time: break when CTRL-C pressed. The current + // state will be wrong then. line_breakcheck(); if (got_int) { current_lnum = lnum; @@ -664,8 +662,8 @@ static void syn_sync(win_T *wp, linenr_T start_lnum, synstate_T *last_valid) * 1. Search backwards for the end of a C-style comment. */ if (syn_block->b_syn_sync_flags & SF_CCOMMENT) { - /* Need to make syn_buf the current buffer for a moment, to be able to - * use find_start_comment(). */ + // Need to make syn_buf the current buffer for a moment, to be able to + // use find_start_comment(). curwin_save = curwin; curwin = wp; curbuf_save = curbuf; @@ -793,9 +791,9 @@ static void syn_sync(win_T *wp, linenr_T start_lnum, synstate_T *last_valid) ++current_col; } - /* syn_current_attr() will have skipped the check for - * an item that ends here, need to do that now. Be - * careful not to go past the NUL. */ + // syn_current_attr() will have skipped the check for + // an item that ends here, need to do that now. Be + // careful not to go past the NUL. prev_current_col = current_col; if (syn_getcurline()[current_col] != NUL) { ++current_col; @@ -987,9 +985,8 @@ static void syn_update_ends(bool startofline) check_keepend(); } -/**************************************** - * Handling of the state stack cache. - */ +///////////////////////////////////////// +// Handling of the state stack cache. /* * EXPLANATION OF THE SYNTAX STATE STACK CACHE @@ -1081,8 +1078,8 @@ static void syn_stack_alloc(void) } if (syn_block->b_sst_array != NULL) { - /* When shrinking the array, cleanup the existing stack. - * Make sure that all valid entries fit in the new array. */ + // When shrinking the array, cleanup the existing stack. + // Make sure that all valid entries fit in the new array. while (syn_block->b_sst_len - syn_block->b_sst_freecount + 2 > len && syn_stack_cleanup()) { ; @@ -1165,9 +1162,9 @@ static void syn_stack_apply_changes_block(synblock_T *block, buf_T *buf) p = np; continue; } - /* This state is below the changed area. Remember the line - * that needs to be parsed before this entry can be made valid - * again. */ + // This state is below the changed area. Remember the line + // that needs to be parsed before this entry can be made valid + // again. if (p->sst_change_lnum != 0 && p->sst_change_lnum > buf->b_mod_top) { if (p->sst_change_lnum + buf->b_mod_xlines > buf->b_mod_top) { p->sst_change_lnum += buf->b_mod_xlines; @@ -1638,8 +1635,8 @@ int get_syntax_attr(const colnr_T col, bool *const can_spell, const bool keep_st int attr = 0; if (can_spell != NULL) { - /* Default: Only do spelling when there is no @Spell cluster or when - * ":syn spell toplevel" was used. */ + // Default: Only do spelling when there is no @Spell cluster or when + // ":syn spell toplevel" was used. *can_spell = syn_block->b_syn_spell == SYNSPL_DEFAULT ? (syn_block->b_spell_cluster_id == 0) : (syn_block->b_syn_spell == SYNSPL_TOP); @@ -1901,15 +1898,15 @@ static int syn_current_attr(const bool syncing, const bool displaying, bool *con syn_add_start_off(&pos, ®match, spp, SPO_MS_OFF, -1); if (pos.lnum > current_lnum) { - /* must have used end of match in a next line, - * we can't handle that */ + // must have used end of match in a next line, + // we can't handle that spp->sp_startcol = MAXCOL; continue; } startcol = pos.col; - /* remember the next column where this pattern - * matches in the current line */ + // remember the next column where this pattern + // matches in the current line spp->sp_startcol = startcol; /* @@ -1999,8 +1996,8 @@ static int syn_current_attr(const bool syncing, const bool displaying, bool *con /* * keep the best match so far in next_match_* */ - /* Highlighting must start after startpos and end - * before endpos. */ + // Highlighting must start after startpos and end + // before endpos. if (hl_startpos.lnum == current_lnum && (int)hl_startpos.col < startcol) { hl_startpos.col = startcol; @@ -2029,8 +2026,8 @@ static int syn_current_attr(const bool syncing, const bool displaying, bool *con if (next_match_idx >= 0 && next_match_col == (int)current_col) { synpat_T *lspp; - /* When a zero-width item matched which has a nextgroup, - * don't push the item but set nextgroup. */ + // When a zero-width item matched which has a nextgroup, + // don't push the item but set nextgroup. lspp = &(SYN_ITEMS(syn_block)[next_match_idx]); if (next_match_m_endpos.lnum == current_lnum && next_match_m_endpos.col == current_col @@ -2127,8 +2124,8 @@ static int syn_current_attr(const bool syncing, const bool displaying, bool *con * done in the current item. */ if (syn_block->b_spell_cluster_id == 0) { - /* There is no @Spell cluster: Do spelling for items without - * @NoSpell cluster. */ + // There is no @Spell cluster: Do spelling for items without + // @NoSpell cluster. if (syn_block->b_nospell_cluster_id == 0 || current_trans_id == 0) { *can_spell = (syn_block->b_syn_spell != SYNSPL_NOTOP); @@ -2180,8 +2177,8 @@ static int syn_current_attr(const bool syncing, const bool displaying, bool *con } } } else if (can_spell != NULL) { - /* Default: Only do spelling when there is no @Spell cluster or when - * ":syn spell toplevel" was used. */ + // Default: Only do spelling when there is no @Spell cluster or when + // ":syn spell toplevel" was used. *can_spell = syn_block->b_syn_spell == SYNSPL_DEFAULT ? (syn_block->b_spell_cluster_id == 0) : (syn_block->b_syn_spell == SYNSPL_TOP); @@ -2365,8 +2362,8 @@ static void check_state_ends(void) current_next_list = NULL; } - /* When the ended item has "extend", another item with - * "keepend" now needs to check for its end. */ + // When the ended item has "extend", another item with + // "keepend" now needs to check for its end. had_extend = (cur_si->si_flags & HL_EXTEND); pop_current_state(); @@ -2541,9 +2538,9 @@ static void update_si_end(stateitem_T *sip, int startcol, bool force) return; } - /* Don't update when it's already done. Can be a match of an end pattern - * that started in a previous line. Watch out: can also be a "keepend" - * from a containing item. */ + // Don't update when it's already done. Can be a match of an end pattern + // that started in a previous line. Watch out: can also be a "keepend" + // from a containing item. if (!force && sip->si_m_endpos.lnum >= current_lnum) { return; } @@ -2822,8 +2819,8 @@ static void find_endpos(int idx, lpos_T *startpos, lpos_T *m_endpos, lpos_T *hl_ } limit_pos(hl_endpos, m_endpos); - /* now the match ends where the highlighting ends, it is turned - * into the matchgroup for the end */ + // now the match ends where the highlighting ends, it is turned + // into the matchgroup for the end *m_endpos = *hl_endpos; } else { *end_idx = 0; @@ -5571,8 +5568,8 @@ static int in_id_list(stateitem_T *cur_si, int16_t *list, struct sp_syn *ssp, in // If ssp has a "containedin" list and "cur_si" is in it, return TRUE. if (cur_si != NULL && ssp->cont_in_list != NULL && !(cur_si->si_flags & HL_MATCH)) { - /* Ignore transparent items without a contains argument. Double check - * that we don't go back past the first one. */ + // Ignore transparent items without a contains argument. Double check + // that we don't go back past the first one. while ((cur_si->si_flags & HL_TRANS_CONT) && cur_si > (stateitem_T *)(current_state.ga_data)) { --cur_si; @@ -5636,8 +5633,8 @@ static int in_id_list(stateitem_T *cur_si, int16_t *list, struct sp_syn *ssp, in } if (item >= SYNID_CLUSTER) { scl_list = SYN_CLSTR(syn_block)[item - SYNID_CLUSTER].scl_list; - /* restrict recursiveness to 30 to avoid an endless loop for a - * cluster that includes itself (indirectly) */ + // restrict recursiveness to 30 to avoid an endless loop for a + // cluster that includes itself (indirectly) if (scl_list != NULL && depth < 30) { ++depth; r = in_id_list(NULL, scl_list, ssp, contained); @@ -5932,8 +5929,8 @@ int syn_get_sub_char(void) int syn_get_stack_item(int i) { if (i >= current_state.ga_len) { - /* Need to invalidate the state, because we didn't properly finish it - * for the last character, "keep_state" was TRUE. */ + // Need to invalidate the state, because we didn't properly finish it + // for the last character, "keep_state" was TRUE. invalidate_current_state(); current_col = MAXCOL; return -1; |