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/**
* @file align_trailing_comments.cpp
*
* @author Guy Maurel
* split from align.cpp
* @author Ben Gardner
* @license GPL v2+
*/
#include "align_trailing_comments.h"
#include "align_add.h"
#include "align_tab_column.h"
#include "indent.h"
#include "log_rules.h"
#include "uncrustify.h"
using namespace uncrustify;
void align_stack(ChunkStack &cs, size_t col, bool align_single, log_sev_t sev)
{
LOG_FUNC_ENTRY();
log_rule_B("align_on_tabstop");
if (options::align_on_tabstop())
{
col = align_tab_column(col);
}
if ( (cs.Len() > 1)
|| (align_single && (cs.Len() == 1)))
{
LOG_FMT(sev, "%s(%d): max_col=%zu\n", __func__, __LINE__, col);
chunk_t *pc;
while ((pc = cs.Pop_Back()) != nullptr)
{
align_to_column(pc, col);
chunk_flags_set(pc, PCF_WAS_ALIGNED);
LOG_FMT(sev, "%s(%d): indented [%s] on line %zu to %zu\n",
__func__, __LINE__, pc->text(), pc->orig_line, pc->column);
}
}
cs.Reset();
} // align_stack
chunk_t *align_trailing_comments(chunk_t *start)
{
LOG_FUNC_ENTRY();
size_t min_col = 0;
size_t min_orig = 0;
chunk_t *pc = start;
const size_t lvl = start->brace_level;
size_t nl_count = 0;
ChunkStack cs;
size_t col;
log_rule_B("align_right_cmt_at_col");
size_t intended_col = options::align_right_cmt_at_col();
log_rule_B("align_right_cmt_same_level");
const bool same_level = options::align_right_cmt_same_level();
comment_align_e cmt_type_cur;
comment_align_e cmt_type_start = get_comment_align_type(pc);
LOG_FMT(LALADD, "%s(%d): start on line=%zu\n",
__func__, __LINE__, pc->orig_line);
// Find the max column
log_rule_B("align_right_cmt_span");
while ( pc != nullptr
&& (nl_count < options::align_right_cmt_span()))
{
if (pc->flags.test(PCF_RIGHT_COMMENT) && pc->column > 1)
{
if (same_level && pc->brace_level != lvl)
{
pc = chunk_get_prev(pc);
break;
}
cmt_type_cur = get_comment_align_type(pc);
if (cmt_type_cur == cmt_type_start)
{
LOG_FMT(LALADD, "%s(%d): line=%zu min_col=%zu pc->col=%zu pc->len=%zu %s\n",
__func__, __LINE__, pc->orig_line, min_col, pc->column, pc->len(),
get_token_name(pc->type));
if (min_orig == 0 || min_orig > pc->column)
{
min_orig = pc->column;
}
align_add(cs, pc, min_col); // (intended_col < col));
nl_count = 0;
}
}
if (chunk_is_newline(pc))
{
nl_count += pc->nl_count;
}
pc = chunk_get_next(pc);
}
// Start with the minimum original column
col = min_orig;
// fall back to the intended column
if (intended_col > 0 && col > intended_col)
{
col = intended_col;
}
// if less than allowed, bump it out
if (col < min_col)
{
col = min_col;
}
// bump out to the intended column
if (col < intended_col)
{
col = intended_col;
}
LOG_FMT(LALADD, "%s(%d): -- min_orig=%zu intended_col=%zu min_allowed=%zu ==> col=%zu\n",
__func__, __LINE__, min_orig, intended_col, min_col, col);
if (cpd.frag_cols > 0 && cpd.frag_cols <= col)
{
col -= cpd.frag_cols;
}
align_stack(cs, col, (intended_col != 0), LALTC);
return(chunk_get_next(pc));
} // align_trailing_comments
comment_align_e get_comment_align_type(chunk_t *cmt)
{
chunk_t *prev;
comment_align_e cmt_type = comment_align_e::REGULAR;
log_rule_B("align_right_cmt_mix");
if ( !options::align_right_cmt_mix()
&& ((prev = chunk_get_prev(cmt)) != nullptr))
{
if ( chunk_is_token(prev, CT_PP_ENDIF)
|| chunk_is_token(prev, CT_PP_ELSE)
|| chunk_is_token(prev, CT_ELSE)
|| chunk_is_token(prev, CT_BRACE_CLOSE))
{
// TODO: make the magic 3 configurable
if ((cmt->column - (prev->column + prev->len())) < 3)
{
cmt_type = (chunk_is_token(prev, CT_PP_ENDIF)) ? comment_align_e::ENDIF : comment_align_e::BRACE;
}
}
}
return(cmt_type);
} // get_comment_align_type
void align_right_comments(void)
{
LOG_FUNC_ENTRY();
for (chunk_t *pc = chunk_get_head(); pc != nullptr; pc = chunk_get_next(pc))
{
if ( chunk_is_token(pc, CT_COMMENT)
|| chunk_is_token(pc, CT_COMMENT_CPP)
|| chunk_is_token(pc, CT_COMMENT_MULTI))
{
if (get_chunk_parent_type(pc) == CT_COMMENT_END)
{
chunk_t *prev = chunk_get_prev(pc);
log_rule_B("align_right_cmt_gap");
if (pc->orig_col < prev->orig_col_end + options::align_right_cmt_gap())
{
LOG_FMT(LALTC, "NOT changing END comment on line %zu (%zu <= %zu + %u)\n",
pc->orig_line, pc->orig_col, prev->orig_col_end,
options::align_right_cmt_gap());
}
else
{
LOG_FMT(LALTC, "Changing END comment on line %zu into a RIGHT-comment\n",
pc->orig_line);
chunk_flags_set(pc, PCF_RIGHT_COMMENT);
}
}
// Change certain WHOLE comments into RIGHT-alignable comments
if (get_chunk_parent_type(pc) == CT_COMMENT_WHOLE)
{
log_rule_B("input_tab_size");
size_t max_col = pc->column_indent + options::input_tab_size();
// If the comment is further right than the brace level...
if (pc->column >= max_col)
{
LOG_FMT(LALTC, "Changing WHOLE comment on line %zu into a RIGHT-comment (col=%zu col_ind=%zu max_col=%zu)\n",
pc->orig_line, pc->column, pc->column_indent, max_col);
chunk_flags_set(pc, PCF_RIGHT_COMMENT);
}
}
}
}
chunk_t *pc = chunk_get_head();
while (pc != nullptr)
{
if (pc->flags.test(PCF_RIGHT_COMMENT))
{
pc = align_trailing_comments(pc);
}
else
{
pc = chunk_get_next(pc);
}
}
} // align_right_comments
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