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align.cpp
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1957 lines (1725 loc) · 49.9 KB
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/**
* @file align.cpp
* Does all the aligning stuff.
*
* @author Ben Gardner
* @license GPL v2+
*/
#include "uncrustify_types.h"
#include "chunk_list.h"
#include "ChunkStack.h"
#include "align_stack.h"
#include "prototypes.h"
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cerrno>
#include "unc_ctype.h"
static chunk_t *align_var_def_brace(chunk_t *pc, int span, int *nl_count);
static chunk_t *align_trailing_comments(chunk_t *start);
static void align_init_brace(chunk_t *start);
static void align_func_params();
static void align_same_func_call_params();
static void align_func_proto(int span);
static void align_oc_msg_spec(int span);
static void align_typedefs(int span);
static void align_left_shift(void);
static void align_oc_msg_colons();
static void align_oc_msg_colon(chunk_t *so);
static void align_oc_decl_colon(void);
/*
* Here are the items aligned:
*
* - enum value assignments
* enum {
* cat = 1,
* fred = 2,
* };
*
* - struct/union variable & bit definitions
* struct foo {
* char cat;
* int id : 5;
* int name_len : 6;
* int heigth : 12;
* };
*
* - variable definitions & assignments in normal code
* const char *cat = "feline";
* int id = 4;
* a = 5;
* bat = 14;
*
* - simple array initializers
* int a[] = {
* 1, 2, 3, 4, 5,
* 6, 7, 8, 9, 10
* };
*
* - c99 array initializers
* const char *name[] = {
* [FRED] = "fred",
* [JOE] = "joe",
* [PETER] = "peter",
* };
* struct foo b[] = {
* { .id = 1, .name = "text 1" },
* { .id = 567, .name = "text 2" },
* };
* struct foo_t bars[] =
* {
* [0] = { .name = "bar",
* .age = 21 },
* [1] = { .name = "barley",
* .age = 55 },
* };
*
* - compact array initializers
* struct foo b[] = {
* { 3, "dog" }, { 6, "spider" },
* { 8, "elephant" }, { 3, "cat" },
* };
*
* - multiline array initializers (2nd line indented, not aligned)
* struct foo b[] = {
* { AD_NOT_ALLOWED, "Sorry, you failed to guess the password.",
* "Try again?", "Yes", "No" },
* { AD_SW_ERROR, "A software error has occured.", "Bye!", NULL, NULL },
* };
*
* - Trailing comments
*
* - Back-slash newline groups
*
* - Function prototypes
* int foo();
* void bar();
*
* - Preprocessors
* #define FOO_VAL 15
* #define MAX_TIMEOUT 60
* #define FOO(x) ((x) * 65)
*
* - typedefs
* typedef uint8_t BYTE;
* typedef int32_t INT32;
* typedef uint32_t UINT32;
*/
/**
* Aligns everything in the chunk stack to a particular column.
* The stack is empty after this function.
*
* @param col the column
* @param align_single align even if there is only one item on the stack
*/
static void align_stack(ChunkStack& cs, int col, bool align_single, log_sev_t sev)
{
chunk_t *pc;
if (cpd.settings[UO_align_on_tabstop].b)
{
col = align_tab_column(col);
}
if ((cs.Len() > 1) || (align_single && (cs.Len() == 1)))
{
LOG_FMT(sev, "%s: max_col=%d\n", __func__, col);
while ((pc = cs.Pop()) != NULL)
{
align_to_column(pc, col);
pc->flags |= PCF_WAS_ALIGNED;
LOG_FMT(sev, "%s: indented [%s] on line %d to %d\n",
__func__, pc->str.c_str(), pc->orig_line, pc->column);
}
}
cs.Reset();
}
/**
* Adds an item to the align stack and adjust the nl_count and max_col.
* Adjust max_col as needed
*
* @param pc the item to add
* @param max_col pointer to the column variable
* @param extra_pad extra padding
*/
static void align_add(ChunkStack& cs, chunk_t *pc, int& max_col, int min_pad, bool squeeze)
{
chunk_t *prev;
int min_col;
prev = chunk_get_prev(pc);
if ((prev == NULL) || chunk_is_newline(prev))
{
min_col = squeeze ? 1 : pc->column;
LOG_FMT(LALADD, "%s: pc->col=%d max_col=%d min_pad=%d min_col=%d\n",
__func__, pc->column, max_col, min_pad, min_col);
}
else
{
if (prev->type == CT_COMMENT_MULTI)
{
min_col = prev->orig_col_end + min_pad;
}
else
{
min_col = prev->column + prev->len() + min_pad;
}
if (!squeeze)
{
if (min_col < pc->column)
{
min_col = pc->column;
}
}
LOG_FMT(LALADD, "%s: pc->col=%d max_col=%d min_pad=%d min_col=%d multi:%s prev->col=%d prev->len=%d %s\n",
__func__, pc->column, max_col, min_pad, min_col, (prev->type == CT_COMMENT_MULTI) ? "Y" : "N",
(prev->type == CT_COMMENT_MULTI) ? prev->orig_col_end : prev->column, prev->len(), get_token_name(prev->type));
}
if (cs.Empty())
{
max_col = 0;
}
cs.Push(pc);
if (min_col > max_col)
{
max_col = min_col;
}
}
void quick_align_again(void)
{
chunk_t *pc;
chunk_t *tmp;
AlignStack as;
LOG_FMT(LALAGAIN, "%s:\n", __func__);
for (pc = chunk_get_head(); pc != NULL; pc = chunk_get_next(pc))
{
if ((pc->align.next != NULL) && (pc->flags & PCF_ALIGN_START))
{
as.Start(100, 0);
as.m_right_align = pc->align.right_align;
as.m_star_style = (AlignStack::StarStyle)pc->align.star_style;
as.m_amp_style = (AlignStack::StarStyle)pc->align.amp_style;
as.m_gap = pc->align.gap;
LOG_FMT(LALAGAIN, " [%s:%d]", pc->str.c_str(), pc->orig_line);
as.Add(pc->align.start);
pc->flags |= PCF_WAS_ALIGNED;
for (tmp = pc->align.next; tmp != NULL; tmp = tmp->align.next)
{
tmp->flags |= PCF_WAS_ALIGNED;
as.Add(tmp->align.start);
LOG_FMT(LALAGAIN, " => [%s:%d]", tmp->str.c_str(), tmp->orig_line);
}
LOG_FMT(LALAGAIN, "\n");
as.End();
}
}
}
void align_all(void)
{
if (cpd.settings[UO_align_typedef_span].n > 0)
{
align_typedefs(cpd.settings[UO_align_typedef_span].n);
}
if (cpd.settings[UO_align_left_shift].b)
{
align_left_shift();
}
if (cpd.settings[UO_align_oc_msg_colon_span].n > 0)
{
align_oc_msg_colons();
}
if (cpd.settings[UO_align_oc_decl_colon].b)
{
align_oc_decl_colon();
}
/* Align variable definitions */
if ((cpd.settings[UO_align_var_def_span].n > 0) ||
(cpd.settings[UO_align_var_struct_span].n > 0))
{
align_var_def_brace(chunk_get_head(), cpd.settings[UO_align_var_def_span].n, NULL);
}
/* Align assignments */
align_assign(chunk_get_head(),
cpd.settings[UO_align_assign_span].n,
cpd.settings[UO_align_assign_thresh].n);
/* Align structure initializers */
if (cpd.settings[UO_align_struct_init_span].n > 0)
{
align_struct_initializers();
}
/* Align function prototypes */
if ((cpd.settings[UO_align_func_proto_span].n > 0) &&
!cpd.settings[UO_align_mix_var_proto].b)
{
align_func_proto(cpd.settings[UO_align_func_proto_span].n);
}
/* Align function prototypes */
if (cpd.settings[UO_align_oc_msg_spec_span].n > 0)
{
align_oc_msg_spec(cpd.settings[UO_align_oc_msg_spec_span].n);
}
/* Align variable defs in function prototypes */
if (cpd.settings[UO_align_func_params].b)
{
align_func_params();
}
if (cpd.settings[UO_align_same_func_call_params].b)
{
align_same_func_call_params();
}
/* Just in case something was aligned out of order... do it again */
quick_align_again();
}
/**
* Aligns all function prototypes in the file.
*/
static void align_oc_msg_spec(int span)
{
chunk_t *pc;
AlignStack as;
LOG_FMT(LALIGN, "%s\n", __func__);
as.Start(span, 0);
for (pc = chunk_get_head(); pc != NULL; pc = chunk_get_next(pc))
{
if (chunk_is_newline(pc))
{
as.NewLines(pc->nl_count);
}
else if (pc->type == CT_OC_MSG_SPEC)
{
as.Add(pc);
}
}
as.End();
}
/**
* Aligns all backslash-newline combos in the file.
* This should be done LAST.
*/
void align_backslash_newline(void)
{
chunk_t *pc;
pc = chunk_get_head();
while (pc != NULL)
{
if (pc->type != CT_NL_CONT)
{
pc = chunk_get_next_type(pc, CT_NL_CONT, -1);
continue;
}
pc = align_nl_cont(pc);
}
}
void align_right_comments(void)
{
chunk_t *pc;
chunk_t *prev;
bool skip;
for (pc = chunk_get_head(); pc != NULL; pc = chunk_get_next(pc))
{
if ((pc->type == CT_COMMENT) ||
(pc->type == CT_COMMENT_CPP) ||
(pc->type == CT_COMMENT_MULTI))
{
skip = false;
if (pc->parent_type == CT_COMMENT_END)
{
prev = chunk_get_prev(pc);
if (pc->orig_col < (prev->orig_col_end + cpd.settings[UO_align_right_cmt_gap].n))
{
LOG_FMT(LALTC, "NOT changing END comment on line %d (%d <= %d + %d)\n",
pc->orig_line,
pc->orig_col, prev->orig_col_end, cpd.settings[UO_align_right_cmt_gap].n);
skip = true;
}
if (!skip)
{
LOG_FMT(LALTC, "Changing END comment on line %d into a RIGHT-comment\n",
pc->orig_line);
pc->flags |= PCF_RIGHT_COMMENT;
}
}
/* Change certain WHOLE comments into RIGHT-alignable comments */
if (pc->parent_type == CT_COMMENT_WHOLE)
{
int max_col = pc->column_indent + cpd.settings[UO_input_tab_size].n;
/* If the comment is further right than the brace level... */
if (pc->column >= max_col)
{
LOG_FMT(LALTC, "Changing WHOLE comment on line %d into a RIGHT-comment (col=%d col_ind=%d max_col=%d)\n",
pc->orig_line, pc->column, pc->column_indent, max_col);
pc->flags |= PCF_RIGHT_COMMENT;
}
}
}
}
pc = chunk_get_head();
while (pc != NULL)
{
if ((pc->flags & PCF_RIGHT_COMMENT) != 0)
{
pc = align_trailing_comments(pc);
}
else
{
pc = chunk_get_next(pc);
}
}
}
/**
* Aligns stuff inside a multi-line "= { ... }" sequence.
*/
void align_struct_initializers(void)
{
chunk_t *pc;
chunk_t *prev;
pc = chunk_get_head();
while (pc != NULL)
{
prev = chunk_get_prev_ncnl(pc);
if ((prev != NULL) && (prev->type == CT_ASSIGN) &&
((pc->type == CT_BRACE_OPEN) ||
((cpd.lang_flags & LANG_D) && (pc->type == CT_SQUARE_OPEN))))
{
align_init_brace(pc);
}
pc = chunk_get_next_type(pc, CT_BRACE_OPEN, -1);
}
}
/**
* Scans the whole file for #defines. Aligns all within X lines of each other
*/
void align_preprocessor(void)
{
chunk_t *pc;
AlignStack as; // value macros
AlignStack asf; // function macros
AlignStack *cur_as = &as;
as.Start(cpd.settings[UO_align_pp_define_span].n);
as.m_gap = cpd.settings[UO_align_pp_define_gap].n;
asf.Start(cpd.settings[UO_align_pp_define_span].n);
asf.m_gap = cpd.settings[UO_align_pp_define_gap].n;
pc = chunk_get_head();
while (pc != NULL)
{
/* Note: not counting back-slash newline combos */
if (pc->type == CT_NEWLINE)
{
as.NewLines(pc->nl_count);
asf.NewLines(pc->nl_count);
}
/* If we aren't on a 'define', then skip to the next non-comment */
if (pc->type != CT_PP_DEFINE)
{
pc = chunk_get_next_nc(pc);
continue;
}
/* step past the 'define' */
pc = chunk_get_next_nc(pc);
if (pc == NULL)
{
break;
}
LOG_FMT(LALPP, "%s: define (%s) on line %d col %d\n",
__func__, pc->str.c_str(), pc->orig_line, pc->orig_col);
cur_as = &as;
if (pc->type == CT_MACRO_FUNC)
{
cur_as = &asf;
/* Skip to the close paren */
pc = chunk_get_next_nc(pc); // point to open (
pc = chunk_get_next_type(pc, CT_FPAREN_CLOSE, pc->level);
LOG_FMT(LALPP, "%s: jumped to (%s) on line %d col %d\n",
__func__, pc->str.c_str(), pc->orig_line, pc->orig_col);
}
/* step to the value past the close paren or the macro name */
pc = chunk_get_next(pc);
if (pc == NULL)
{
break;
}
/* don't align anything if the first line ends with a newline before
* a value is given */
if (!chunk_is_newline(pc))
{
LOG_FMT(LALPP, "%s: align on '%s', line %d col %d\n",
__func__, pc->str.c_str(), pc->orig_line, pc->orig_col);
cur_as->Add(pc);
}
}
as.End();
asf.End();
}
/**
* Aligns all assignment operators on the same level as first, starting with
* first.
*
* For variable definitions, only consider the '=' for the first variable.
* Otherwise, only look at the first '=' on the line.
*/
chunk_t *align_assign(chunk_t *first, int span, int thresh)
{
int my_level;
chunk_t *pc;
int tmp;
int var_def_cnt = 0;
int equ_count = 0;
if (first == NULL)
{
return(NULL);
}
my_level = first->level;
if (span <= 0)
{
return(chunk_get_next(first));
}
LOG_FMT(LALASS, "%s[%d]: checking %s on line %d - span=%d thresh=%d\n",
__func__, my_level, first->str.c_str(), first->orig_line,
span, thresh);
AlignStack as; // regular assigns
AlignStack vdas; // variable def assigns
/* If we are aligning on a tabstop, we shouldn't right-align */
as.Start(span, thresh);
as.m_right_align = !cpd.settings[UO_align_on_tabstop].b;
vdas.Start(span, thresh);
vdas.m_right_align = as.m_right_align;
pc = first;
while ((pc != NULL) && ((pc->level >= my_level) || (pc->level == 0)))
{
/* Don't check inside PAREN or SQUARE groups */
if ((pc->type == CT_SPAREN_OPEN) ||
(pc->type == CT_FPAREN_OPEN) ||
(pc->type == CT_SQUARE_OPEN) ||
(pc->type == CT_PAREN_OPEN))
{
tmp = pc->orig_line;
pc = chunk_skip_to_match(pc);
if (pc != NULL)
{
as.NewLines(pc->orig_line - tmp);
vdas.NewLines(pc->orig_line - tmp);
}
continue;
}
/* Recurse if a brace set is found */
if ((pc->type == CT_BRACE_OPEN) ||
(pc->type == CT_VBRACE_OPEN))
{
int myspan;
int mythresh;
tmp = pc->orig_line;
if (pc->parent_type == CT_ENUM)
{
myspan = cpd.settings[UO_align_enum_equ_span].n;
mythresh = cpd.settings[UO_align_enum_equ_thresh].n;
}
else
{
myspan = cpd.settings[UO_align_assign_span].n;
mythresh = cpd.settings[UO_align_assign_thresh].n;
}
pc = align_assign(chunk_get_next_ncnl(pc), myspan, mythresh);
if (pc != NULL)
{
/* do a rough count of the number of lines just spanned */
as.NewLines(pc->orig_line - tmp);
vdas.NewLines(pc->orig_line - tmp);
}
continue;
}
if (chunk_is_newline(pc))
{
as.NewLines(pc->nl_count);
vdas.NewLines(pc->nl_count);
var_def_cnt = 0;
equ_count = 0;
}
else if ((pc->flags & PCF_VAR_DEF) != 0)
{
var_def_cnt++;
}
else if (var_def_cnt > 1)
{
/* we hit the second variable def - don't look for assigns */
}
else if ((equ_count == 0) && (pc->type == CT_ASSIGN))
{
//fprintf(stderr, "%s: ** %s level=%d line=%d col=%d prev=%d count=%d\n",
// __func__, pc->str, pc->level, pc->orig_line, pc->orig_col, prev_equ_type,
// equ_count);
equ_count++;
if (var_def_cnt != 0)
{
vdas.Add(pc);
}
else
{
as.Add(pc);
}
}
pc = chunk_get_next(pc);
}
as.End();
vdas.End();
if (pc != NULL)
{
LOG_FMT(LALASS, "%s: done on %s on line %d\n",
__func__, pc->str.c_str(), pc->orig_line);
}
else
{
LOG_FMT(LALASS, "%s: done on NULL\n", __func__);
}
return(pc);
}
/**
* Counts how many '*' pointers are in a row, going backwards
*
* @param pc Pointer to the last '*' in the series
* @return The count, including the current one
*/
int count_prev_ptr_type(chunk_t *pc)
{
int count = 0;
while ((pc != NULL) && (pc->type == CT_PTR_TYPE))
{
count++;
pc = chunk_get_prev_nc(pc);
}
return(count);
}
static chunk_t *align_func_param(chunk_t *start)
{
AlignStack as;
chunk_t *pc = start;
as.Start(2, 0);
as.m_star_style = (AlignStack::StarStyle)cpd.settings[UO_align_var_def_star_style].n;
as.m_amp_style = (AlignStack::StarStyle)cpd.settings[UO_align_var_def_amp_style].n;
bool did_this_line = false;
int comma_count = 0;
int chunk_count = 0;
while ((pc = chunk_get_next(pc)) != NULL)
{
chunk_count++;
if (chunk_is_newline(pc))
{
did_this_line = false;
comma_count = 0;
chunk_count = 0;
}
else if (pc->level <= start->level)
{
break;
}
else if (!did_this_line && (pc->flags & PCF_VAR_DEF))
{
if (chunk_count > 1)
{
as.Add(pc);
}
did_this_line = true;
}
else if (comma_count > 0)
{
if (!chunk_is_comment(pc))
{
comma_count = 2;
break;
}
}
else if (pc->type == CT_COMMA)
{
comma_count++;
}
}
if (comma_count <= 1)
{
as.End();
}
return(pc);
}
static void align_func_params()
{
chunk_t *pc;
pc = chunk_get_head();
while ((pc = chunk_get_next(pc)) != NULL)
{
if ((pc->type != CT_FPAREN_OPEN) ||
((pc->parent_type != CT_FUNC_PROTO) &&
(pc->parent_type != CT_FUNC_DEF) &&
(pc->parent_type != CT_FUNC_CLASS) &&
(pc->parent_type != CT_TYPEDEF)))
{
continue;
}
/* We're on a open paren of a prototype */
pc = align_func_param(pc);
}
}
static void align_params(chunk_t *start, deque<chunk_t *>& chunks)
{
chunk_t *pc = start;
bool hit_comma = true;
chunks.clear();
pc = chunk_get_next_type(start, CT_FPAREN_OPEN, start->level);
while ((pc = chunk_get_next(pc)) != NULL)
{
if (chunk_is_newline(pc) ||
(pc->type == CT_SEMICOLON) ||
((pc->type == CT_FPAREN_CLOSE) && (pc->level == start->level)))
{
break;
}
if (pc->level == (start->level + 1))
{
if (hit_comma)
{
chunks.push_back(pc);
hit_comma = false;
}
else if (pc->type == CT_COMMA)
{
hit_comma = true;
}
}
}
}
static void align_same_func_call_params()
{
chunk_t *pc;
chunk_t *align_root = NULL;
chunk_t *align_cur = NULL;
int align_len = 0;
deque<chunk_t *> chunks;
deque<AlignStack> as;
AlignStack fcn_as;
int idx;
const char *add_str;
fcn_as.Start(3);
for (pc = chunk_get_head(); pc != NULL; pc = chunk_get_next(pc))
{
if (pc->type != CT_FUNC_CALL)
{
if (chunk_is_newline(pc))
{
for (idx = 0; idx <= (int)as.size(); idx++)
{
as[idx].NewLines(pc->nl_count);
}
fcn_as.NewLines(pc->nl_count);
}
continue;
}
/* Only align function calls that are right after a newline */
if (!chunk_is_newline(chunk_get_prev(pc)))
{
continue;
}
add_str = NULL;
if (align_root != NULL)
{
if (pc->str.equals(align_root->str))
{
fcn_as.Add(pc);
align_cur->align.next = pc;
align_cur = pc;
align_len++;
add_str = " Add";
}
else
{
LOG_FMT(LASFCP, " ++ Ended with %d fcns\n", align_len);
/* Flush it all! */
fcn_as.Flush();
for (idx = 0; idx < (int)as.size(); idx++)
{
as[idx].Flush();
}
align_root = NULL;
}
}
if (align_root == NULL)
{
fcn_as.Add(pc);
align_root = pc;
align_cur = pc;
align_len = 1;
add_str = "Start";
}
if (add_str != NULL)
{
LOG_FMT(LASFCP, "%s '%s' on line %d -",
add_str, pc->str.c_str(), pc->orig_line);
align_params(pc, chunks);
LOG_FMT(LASFCP, " %d items:", (int)chunks.size());
for (idx = 0; idx < (int)chunks.size(); idx++)
{
LOG_FMT(LASFCP, " [%s]", chunks[idx]->str.c_str());
if (idx >= (int)as.size())
{
as.resize(idx + 1);
as[idx].Start(3);
if (!cpd.settings[UO_align_number_left].b)
{
if ((chunks[idx]->type == CT_NUMBER_FP) ||
(chunks[idx]->type == CT_NUMBER) ||
(chunks[idx]->type == CT_POS) ||
(chunks[idx]->type == CT_NEG))
{
as[idx].m_right_align = !cpd.settings[UO_align_on_tabstop].b;
}
}
}
as[idx].Add(chunks[idx]);
}
LOG_FMT(LASFCP, "\n");
}
}
if (align_len > 1)
{
LOG_FMT(LASFCP, " ++ Ended with %d fcns\n", align_len);
fcn_as.End();
for (idx = 0; idx < (int)as.size(); idx++)
{
as[idx].End();
}
}
}
chunk_t *step_back_over_member(chunk_t *pc)
{
chunk_t *tmp;
/* Skip over any class stuff: bool CFoo::bar() */
while (((tmp = chunk_get_prev_ncnl(pc)) != NULL) &&
(tmp->type == CT_DC_MEMBER))
{
/* TODO: verify that we are pointing at something sane? */
pc = chunk_get_prev_ncnl(tmp);
}
return(pc);
}
/**
* Aligns all function prototypes in the file.
*/
static void align_func_proto(int span)
{
chunk_t *pc;
chunk_t *toadd;
bool look_bro = false;
AlignStack as;
AlignStack as_br;
LOG_FMT(LALIGN, "%s\n", __func__);
as.Start(span, 0);
as.m_gap = cpd.settings[UO_align_func_proto_gap].n;
as_br.Start(span, 0);
as_br.m_gap = cpd.settings[UO_align_single_line_brace_gap].n;
for (pc = chunk_get_head(); pc != NULL; pc = chunk_get_next(pc))
{
if (chunk_is_newline(pc))
{
look_bro = false;
as.NewLines(pc->nl_count);
as_br.NewLines(pc->nl_count);
}
else if ((pc->type == CT_FUNC_PROTO) ||
((pc->type == CT_FUNC_DEF) &&
cpd.settings[UO_align_single_line_func].b))
{
if ((pc->parent_type == CT_OPERATOR) &&
cpd.settings[UO_align_on_operator].b)
{
toadd = chunk_get_prev_ncnl(pc);
}
else
{
toadd = pc;
}
as.Add(step_back_over_member(toadd));
look_bro = (pc->type == CT_FUNC_DEF) &&
cpd.settings[UO_align_single_line_brace].b;
}
else if (look_bro &&
(pc->type == CT_BRACE_OPEN) &&
(pc->flags & PCF_ONE_LINER))
{
as_br.Add(pc);
look_bro = false;
}
}
as.End();
as_br.End();
}
/**
* Scan everything at the current level until the close brace and find the
* variable def align column. Also aligns bit-colons, but that assumes that
* bit-types are the same! But that should always be the case...
*/
static chunk_t *align_var_def_brace(chunk_t *start, int span, int *p_nl_count)
{
chunk_t *pc;
chunk_t *next;
chunk_t *prev;
UINT64 align_mask = PCF_IN_FCN_DEF | PCF_VAR_1ST;
int myspan = span;
int mythresh = 0;
int mygap = 0;
AlignStack as; /* var/proto/def */
AlignStack as_bc; /* bit-colon */
AlignStack as_at; /* attribute */
AlignStack as_br; /* one-liner brace open */
bool fp_active = cpd.settings[UO_align_mix_var_proto].b;
bool fp_look_bro = false;
if (start == NULL)
{
return(NULL);
}
/* Override the span, if this is a struct/union */
if ((start->parent_type == CT_STRUCT) ||
(start->parent_type == CT_UNION))
{