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freebsd-dev/contrib/gcc/f/stt.c
David E. O'Brien 1952e2e1c1 Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. 
These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00

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/* stt.c -- Implementation File (module.c template V1.0)
Copyright (C) 1995, 1997 Free Software Foundation, Inc.
Contributed by James Craig Burley.
This file is part of GNU Fortran.
GNU Fortran is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Fortran is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Fortran; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
Related Modules:
None
Description:
Manages lists of tokens and related info for parsing.
Modifications:
*/
/* Include files. */
#include "proj.h"
#include "stt.h"
#include "bld.h"
#include "expr.h"
#include "info.h"
#include "lex.h"
#include "malloc.h"
#include "sta.h"
#include "stp.h"
/* Externals defined here. */
/* Simple definitions and enumerations. */
/* Internal typedefs. */
/* Private include files. */
/* Internal structure definitions. */
/* Static objects accessed by functions in this module. */
/* Static functions (internal). */
/* Internal macros. */
/* ffestt_caselist_append -- Append case to list of cases
ffesttCaseList list;
ffelexToken t;
ffestt_caselist_append(list,range,case1,case2,t);
list must have already been created by ffestt_caselist_create. The
list is allocated out of the scratch pool. The token is consumed. */
void
ffestt_caselist_append (ffesttCaseList list, bool range, ffebld case1,
ffebld case2, ffelexToken t)
{
ffesttCaseList new;
new = (ffesttCaseList) malloc_new_kp (ffesta_scratch_pool,
"FFEST case list", sizeof (*new));
new->next = list->previous->next;
new->previous = list->previous;
new->next->previous = new;
new->previous->next = new;
new->expr1 = case1;
new->expr2 = case2;
new->range = range;
new->t = t;
}
/* ffestt_caselist_create -- Create new list of cases
ffesttCaseList list;
list = ffestt_caselist_create();
The list is allocated out of the scratch pool. */
ffesttCaseList
ffestt_caselist_create ()
{
ffesttCaseList new;
new = (ffesttCaseList) malloc_new_kp (ffesta_scratch_pool,
"FFEST case list root",
sizeof (*new));
new->next = new->previous = new;
new->t = NULL;
new->expr1 = NULL;
new->expr2 = NULL;
new->range = FALSE;
return new;
}
/* ffestt_caselist_kill -- Kill list of cases
ffesttCaseList list;
ffestt_caselist_kill(list);
The tokens on the list are killed.
02-Mar-90 JCB 1.1
Don't kill the list itself or change it, since it will be trashed when
ffesta_scratch_pool is killed anyway, so kill only the lex tokens. */
void
ffestt_caselist_kill (ffesttCaseList list)
{
ffesttCaseList next;
for (next = list->next; next != list; next = next->next)
{
ffelex_token_kill (next->t);
}
}
/* ffestt_dimlist_append -- Append dim to list of dims
ffesttDimList list;
ffelexToken t;
ffestt_dimlist_append(list,lower,upper,t);
list must have already been created by ffestt_dimlist_create. The
list is allocated out of the scratch pool. The token is consumed. */
void
ffestt_dimlist_append (ffesttDimList list, ffebld lower, ffebld upper,
ffelexToken t)
{
ffesttDimList new;
new = (ffesttDimList) malloc_new_kp (ffesta_scratch_pool,
"FFEST dim list", sizeof (*new));
new->next = list->previous->next;
new->previous = list->previous;
new->next->previous = new;
new->previous->next = new;
new->lower = lower;
new->upper = upper;
new->t = t;
}
/* Convert list of dims into ffebld format.
ffesttDimList list;
ffeinfoRank rank;
ffebld array_size;
ffebld extents;
ffestt_dimlist_as_expr (list, &rank, &array_size, &extents);
The dims in the list are converted to a list of ITEMs; the rank of the
array, an expression representing the array size, a list of extent
expressions, and the list of ITEMs are returned.
If is_ugly_assumed, treat a final dimension with no lower bound
and an upper bound of 1 as a * bound. */
ffebld
ffestt_dimlist_as_expr (ffesttDimList list, ffeinfoRank *rank,
ffebld *array_size, ffebld *extents,
bool is_ugly_assumed)
{
ffesttDimList next;
ffebld expr;
ffebld as;
ffebld ex; /* List of extents. */
ffebld ext; /* Extent of a given dimension. */
ffebldListBottom bottom;
ffeinfoRank r;
ffeinfoKindtype nkt;
ffetargetIntegerDefault low;
ffetargetIntegerDefault high;
bool zero = FALSE; /* Zero-size array. */
bool any = FALSE;
bool star = FALSE; /* Adjustable array. */
assert (list != NULL);
r = 0;
ffebld_init_list (&expr, &bottom);
for (next = list->next; next != list; next = next->next)
{
++r;
if (((next->lower == NULL)
|| (ffebld_op (next->lower) == FFEBLD_opCONTER))
&& (ffebld_op (next->upper) == FFEBLD_opCONTER))
{
if (next->lower == NULL)
low = 1;
else
low = ffebld_constant_integerdefault (ffebld_conter (next->lower));
high = ffebld_constant_integerdefault (ffebld_conter (next->upper));
if (low
> high)
zero = TRUE;
if ((next->next == list)
&& is_ugly_assumed
&& (next->lower == NULL)
&& (high == 1)
&& (ffebld_conter_orig (next->upper) == NULL))
{
star = TRUE;
ffebld_append_item (&bottom,
ffebld_new_bounds (NULL, ffebld_new_star ()));
continue;
}
}
else if (((next->lower != NULL)
&& (ffebld_op (next->lower) == FFEBLD_opANY))
|| (ffebld_op (next->upper) == FFEBLD_opANY))
any = TRUE;
else if (ffebld_op (next->upper) == FFEBLD_opSTAR)
star = TRUE;
ffebld_append_item (&bottom,
ffebld_new_bounds (next->lower, next->upper));
}
ffebld_end_list (&bottom);
if (zero)
{
as = ffebld_new_conter (ffebld_constant_new_integerdefault_val (0));
ffebld_set_info (as, ffeinfo_new
(FFEINFO_basictypeINTEGER,
FFEINFO_kindtypeINTEGERDEFAULT,
0,
FFEINFO_kindENTITY,
FFEINFO_whereCONSTANT,
FFETARGET_charactersizeNONE));
ex = NULL;
}
else if (any)
{
as = ffebld_new_any ();
ffebld_set_info (as, ffeinfo_new_any ());
ex = ffebld_copy (as);
}
else if (star)
{
as = ffebld_new_star ();
ex = ffebld_new_star (); /* ~~Should really be list as below. */
}
else
{
as = NULL;
ffebld_init_list (&ex, &bottom);
for (next = list->next; next != list; next = next->next)
{
if ((next->lower == NULL)
|| ((ffebld_op (next->lower) == FFEBLD_opCONTER)
&& (ffebld_constant_integerdefault (ffebld_conter
(next->lower)) == 1)))
ext = ffebld_copy (next->upper);
else
{
ext = ffebld_new_subtract (next->upper, next->lower);
nkt
= ffeinfo_kindtype_max (FFEINFO_basictypeINTEGER,
ffeinfo_kindtype (ffebld_info
(next->lower)),
ffeinfo_kindtype (ffebld_info
(next->upper)));
ffebld_set_info (ext,
ffeinfo_new (FFEINFO_basictypeINTEGER,
nkt,
0,
FFEINFO_kindENTITY,
((ffebld_op (ffebld_left (ext))
== FFEBLD_opCONTER)
&& (ffebld_op (ffebld_right
(ext))
== FFEBLD_opCONTER))
? FFEINFO_whereCONSTANT
: FFEINFO_whereFLEETING,
FFETARGET_charactersizeNONE));
ffebld_set_left (ext,
ffeexpr_convert_expr (ffebld_left (ext),
next->t, ext, next->t,
FFEEXPR_contextLET));
ffebld_set_right (ext,
ffeexpr_convert_expr (ffebld_right (ext),
next->t, ext,
next->t,
FFEEXPR_contextLET));
ext = ffeexpr_collapse_subtract (ext, next->t);
nkt
= ffeinfo_kindtype_max (FFEINFO_basictypeINTEGER,
ffeinfo_kindtype (ffebld_info (ext)),
FFEINFO_kindtypeINTEGERDEFAULT);
ext
= ffebld_new_add (ext,
ffebld_new_conter
(ffebld_constant_new_integerdefault_val
(1)));
ffebld_set_info (ffebld_right (ext), ffeinfo_new
(FFEINFO_basictypeINTEGER,
FFEINFO_kindtypeINTEGERDEFAULT,
0,
FFEINFO_kindENTITY,
FFEINFO_whereCONSTANT,
FFETARGET_charactersizeNONE));
ffebld_set_info (ext,
ffeinfo_new (FFEINFO_basictypeINTEGER,
nkt, 0, FFEINFO_kindENTITY,
(ffebld_op (ffebld_left (ext))
== FFEBLD_opCONTER)
? FFEINFO_whereCONSTANT
: FFEINFO_whereFLEETING,
FFETARGET_charactersizeNONE));
ffebld_set_left (ext,
ffeexpr_convert_expr (ffebld_left (ext),
next->t, ext,
next->t,
FFEEXPR_contextLET));
ffebld_set_right (ext,
ffeexpr_convert_expr (ffebld_right (ext),
next->t, ext,
next->t,
FFEEXPR_contextLET));
ext = ffeexpr_collapse_add (ext, next->t);
}
ffebld_append_item (&bottom, ext);
if (as == NULL)
as = ext;
else
{
nkt
= ffeinfo_kindtype_max (FFEINFO_basictypeINTEGER,
ffeinfo_kindtype (ffebld_info (as)),
ffeinfo_kindtype (ffebld_info (ext)));
as = ffebld_new_multiply (as, ext);
ffebld_set_info (as,
ffeinfo_new (FFEINFO_basictypeINTEGER,
nkt, 0, FFEINFO_kindENTITY,
((ffebld_op (ffebld_left (as))
== FFEBLD_opCONTER)
&& (ffebld_op (ffebld_right
(as))
== FFEBLD_opCONTER))
? FFEINFO_whereCONSTANT
: FFEINFO_whereFLEETING,
FFETARGET_charactersizeNONE));
ffebld_set_left (as,
ffeexpr_convert_expr (ffebld_left (as),
next->t, as, next->t,
FFEEXPR_contextLET));
ffebld_set_right (as,
ffeexpr_convert_expr (ffebld_right (as),
next->t, as,
next->t,
FFEEXPR_contextLET));
as = ffeexpr_collapse_multiply (as, next->t);
}
}
ffebld_end_list (&bottom);
as = ffeexpr_convert (as, list->next->t, NULL,
FFEINFO_basictypeINTEGER,
FFEINFO_kindtypeINTEGERDEFAULT, 0,
FFETARGET_charactersizeNONE,
FFEEXPR_contextLET);
}
*rank = r;
*array_size = as;
*extents = ex;
return expr;
}
/* ffestt_dimlist_create -- Create new list of dims
ffesttDimList list;
list = ffestt_dimlist_create();
The list is allocated out of the scratch pool. */
ffesttDimList
ffestt_dimlist_create ()
{
ffesttDimList new;
new = (ffesttDimList) malloc_new_kp (ffesta_scratch_pool,
"FFEST dim list root", sizeof (*new));
new->next = new->previous = new;
new->t = NULL;
new->lower = NULL;
new->upper = NULL;
return new;
}
/* ffestt_dimlist_kill -- Kill list of dims
ffesttDimList list;
ffestt_dimlist_kill(list);
The tokens on the list are killed. */
void
ffestt_dimlist_kill (ffesttDimList list)
{
ffesttDimList next;
for (next = list->next; next != list; next = next->next)
{
ffelex_token_kill (next->t);
}
}
/* Determine type of list of dimensions.
Return KNOWN for all-constant bounds, ADJUSTABLE for constant
and variable but no * bounds, ASSUMED for constant and * but
not variable bounds, ADJUSTABLEASSUMED for constant and variable
and * bounds.
If is_ugly_assumed, treat a final dimension with no lower bound
and an upper bound of 1 as a * bound. */
ffestpDimtype
ffestt_dimlist_type (ffesttDimList list, bool is_ugly_assumed)
{
ffesttDimList next;
ffestpDimtype type;
if (list == NULL)
return FFESTP_dimtypeNONE;
type = FFESTP_dimtypeKNOWN;
for (next = list->next; next != list; next = next->next)
{
bool ugly_assumed = FALSE;
if ((next->next == list)
&& is_ugly_assumed
&& (next->lower == NULL)
&& (next->upper != NULL)
&& (ffebld_op (next->upper) == FFEBLD_opCONTER)
&& (ffebld_constant_integerdefault (ffebld_conter (next->upper))
== 1)
&& (ffebld_conter_orig (next->upper) == NULL))
ugly_assumed = TRUE;
if (next->lower != NULL)
{
if (ffebld_op (next->lower) != FFEBLD_opCONTER)
{
if (type == FFESTP_dimtypeASSUMED)
type = FFESTP_dimtypeADJUSTABLEASSUMED;
else
type = FFESTP_dimtypeADJUSTABLE;
}
}
if (next->upper != NULL)
{
if (ugly_assumed
|| (ffebld_op (next->upper) == FFEBLD_opSTAR))
{
if (type == FFESTP_dimtypeADJUSTABLE)
type = FFESTP_dimtypeADJUSTABLEASSUMED;
else
type = FFESTP_dimtypeASSUMED;
}
else if (ffebld_op (next->upper) != FFEBLD_opCONTER)
type = FFESTP_dimtypeADJUSTABLE;
}
}
return type;
}
/* ffestt_exprlist_append -- Append expr to list of exprs
ffesttExprList list;
ffelexToken t;
ffestt_exprlist_append(list,expr,t);
list must have already been created by ffestt_exprlist_create. The
list is allocated out of the scratch pool. The token is consumed. */
void
ffestt_exprlist_append (ffesttExprList list, ffebld expr, ffelexToken t)
{
ffesttExprList new;
new = (ffesttExprList) malloc_new_kp (ffesta_scratch_pool,
"FFEST expr list", sizeof (*new));
new->next = list->previous->next;
new->previous = list->previous;
new->next->previous = new;
new->previous->next = new;
new->expr = expr;
new->t = t;
}
/* ffestt_exprlist_create -- Create new list of exprs
ffesttExprList list;
list = ffestt_exprlist_create();
The list is allocated out of the scratch pool. */
ffesttExprList
ffestt_exprlist_create ()
{
ffesttExprList new;
new = (ffesttExprList) malloc_new_kp (ffesta_scratch_pool,
"FFEST expr list root", sizeof (*new));
new->next = new->previous = new;
new->expr = NULL;
new->t = NULL;
return new;
}
/* ffestt_exprlist_drive -- Drive list of token pairs into function
ffesttExprList list;
void fn(ffebld expr,ffelexToken t);
ffestt_exprlist_drive(list,fn);
The expr/token pairs in the list are passed to the function one pair
at a time. */
void
ffestt_exprlist_drive (ffesttExprList list, void (*fn) (ffebld, ffelexToken))
{
ffesttExprList next;
if (list == NULL)
return;
for (next = list->next; next != list; next = next->next)
{
(*fn) (next->expr, next->t);
}
}
/* ffestt_exprlist_kill -- Kill list of exprs
ffesttExprList list;
ffestt_exprlist_kill(list);
The tokens on the list are killed.
02-Mar-90 JCB 1.1
Don't kill the list itself or change it, since it will be trashed when
ffesta_scratch_pool is killed anyway, so kill only the lex tokens. */
void
ffestt_exprlist_kill (ffesttExprList list)
{
ffesttExprList next;
for (next = list->next; next != list; next = next->next)
{
ffelex_token_kill (next->t);
}
}
/* ffestt_formatlist_append -- Append null format to list of formats
ffesttFormatList list, new;
new = ffestt_formatlist_append(list);
list must have already been created by ffestt_formatlist_create. The
new item is allocated out of the scratch pool. The caller must initialize
it appropriately. */
ffesttFormatList
ffestt_formatlist_append (ffesttFormatList list)
{
ffesttFormatList new;
new = (ffesttFormatList) malloc_new_kp (ffesta_scratch_pool,
"FFEST format list", sizeof (*new));
new->next = list->previous->next;
new->previous = list->previous;
new->next->previous = new;
new->previous->next = new;
return new;
}
/* ffestt_formatlist_create -- Create new list of formats
ffesttFormatList list;
list = ffestt_formatlist_create(NULL);
The list is allocated out of the scratch pool. */
ffesttFormatList
ffestt_formatlist_create (ffesttFormatList parent, ffelexToken t)
{
ffesttFormatList new;
new = (ffesttFormatList) malloc_new_kp (ffesta_scratch_pool,
"FFEST format list root", sizeof (*new));
new->next = new->previous = new;
new->type = FFESTP_formattypeNone;
new->t = t;
new->u.root.parent = parent;
return new;
}
/* ffestt_formatlist_kill -- Kill tokens on list of formats
ffesttFormatList list;
ffestt_formatlist_kill(list);
The tokens on the list are killed. */
void
ffestt_formatlist_kill (ffesttFormatList list)
{
ffesttFormatList next;
/* Always kill from the very top on down. */
while (list->u.root.parent != NULL)
list = list->u.root.parent->next;
/* Kill first token for this list. */
if (list->t != NULL)
ffelex_token_kill (list->t);
/* Kill each item in this list. */
for (next = list->next; next != list; next = next->next)
{
ffelex_token_kill (next->t);
switch (next->type)
{
case FFESTP_formattypeI:
case FFESTP_formattypeB:
case FFESTP_formattypeO:
case FFESTP_formattypeZ:
case FFESTP_formattypeF:
case FFESTP_formattypeE:
case FFESTP_formattypeEN:
case FFESTP_formattypeG:
case FFESTP_formattypeL:
case FFESTP_formattypeA:
case FFESTP_formattypeD:
if (next->u.R1005.R1004.t != NULL)
ffelex_token_kill (next->u.R1005.R1004.t);
if (next->u.R1005.R1006.t != NULL)
ffelex_token_kill (next->u.R1005.R1006.t);
if (next->u.R1005.R1007_or_R1008.t != NULL)
ffelex_token_kill (next->u.R1005.R1007_or_R1008.t);
if (next->u.R1005.R1009.t != NULL)
ffelex_token_kill (next->u.R1005.R1009.t);
break;
case FFESTP_formattypeQ:
case FFESTP_formattypeDOLLAR:
case FFESTP_formattypeP:
case FFESTP_formattypeT:
case FFESTP_formattypeTL:
case FFESTP_formattypeTR:
case FFESTP_formattypeX:
case FFESTP_formattypeS:
case FFESTP_formattypeSP:
case FFESTP_formattypeSS:
case FFESTP_formattypeBN:
case FFESTP_formattypeBZ:
case FFESTP_formattypeSLASH:
case FFESTP_formattypeCOLON:
if (next->u.R1010.val.t != NULL)
ffelex_token_kill (next->u.R1010.val.t);
break;
case FFESTP_formattypeR1016:
break; /* Nothing more to do. */
case FFESTP_formattypeFORMAT:
if (next->u.R1003D.R1004.t != NULL)
ffelex_token_kill (next->u.R1003D.R1004.t);
next->u.R1003D.format->u.root.parent = NULL; /* Parent already dying. */
ffestt_formatlist_kill (next->u.R1003D.format);
break;
default:
assert (FALSE);
}
}
}
/* ffestt_implist_append -- Append token pair to list of token pairs
ffesttImpList list;
ffelexToken t;
ffestt_implist_append(list,start_token,end_token);
list must have already been created by ffestt_implist_create. The
list is allocated out of the scratch pool. The tokens are consumed. */
void
ffestt_implist_append (ffesttImpList list, ffelexToken first, ffelexToken last)
{
ffesttImpList new;
new = (ffesttImpList) malloc_new_kp (ffesta_scratch_pool,
"FFEST token list", sizeof (*new));
new->next = list->previous->next;
new->previous = list->previous;
new->next->previous = new;
new->previous->next = new;
new->first = first;
new->last = last;
}
/* ffestt_implist_create -- Create new list of token pairs
ffesttImpList list;
list = ffestt_implist_create();
The list is allocated out of the scratch pool. */
ffesttImpList
ffestt_implist_create ()
{
ffesttImpList new;
new = (ffesttImpList) malloc_new_kp (ffesta_scratch_pool,
"FFEST token list root",
sizeof (*new));
new->next = new->previous = new;
new->first = NULL;
new->last = NULL;
return new;
}
/* ffestt_implist_drive -- Drive list of token pairs into function
ffesttImpList list;
void fn(ffelexToken first,ffelexToken last);
ffestt_implist_drive(list,fn);
The token pairs in the list are passed to the function one pair at a time. */
void
ffestt_implist_drive (ffesttImpList list, void (*fn) (ffelexToken, ffelexToken))
{
ffesttImpList next;
if (list == NULL)
return;
for (next = list->next; next != list; next = next->next)
{
(*fn) (next->first, next->last);
}
}
/* ffestt_implist_kill -- Kill list of token pairs
ffesttImpList list;
ffestt_implist_kill(list);
The tokens on the list are killed. */
void
ffestt_implist_kill (ffesttImpList list)
{
ffesttImpList next;
for (next = list->next; next != list; next = next->next)
{
ffelex_token_kill (next->first);
if (next->last != NULL)
ffelex_token_kill (next->last);
}
}
/* ffestt_tokenlist_append -- Append token to list of tokens
ffesttTokenList tl;
ffelexToken t;
ffestt_tokenlist_append(tl,t);
tl must have already been created by ffestt_tokenlist_create. The
list is allocated out of the scratch pool. The token is consumed. */
void
ffestt_tokenlist_append (ffesttTokenList tl, ffelexToken t)
{
ffesttTokenItem ti;
ti = (ffesttTokenItem) malloc_new_kp (ffesta_scratch_pool,
"FFEST token item", sizeof (*ti));
ti->next = (ffesttTokenItem) &tl->first;
ti->previous = tl->last;
ti->next->previous = ti;
ti->previous->next = ti;
ti->t = t;
++tl->count;
}
/* ffestt_tokenlist_create -- Create new list of tokens
ffesttTokenList tl;
tl = ffestt_tokenlist_create();
The list is allocated out of the scratch pool. */
ffesttTokenList
ffestt_tokenlist_create ()
{
ffesttTokenList tl;
tl = (ffesttTokenList) malloc_new_kp (ffesta_scratch_pool,
"FFEST token list", sizeof (*tl));
tl->first = tl->last = (ffesttTokenItem) &tl->first;
tl->count = 0;
return tl;
}
/* ffestt_tokenlist_drive -- Drive list of tokens
ffesttTokenList tl;
void fn(ffelexToken t);
ffestt_tokenlist_drive(tl,fn);
The tokens in the list are passed to the given function. */
void
ffestt_tokenlist_drive (ffesttTokenList tl, void (*fn) (ffelexToken))
{
ffesttTokenItem ti;
if (tl == NULL)
return;
for (ti = tl->first; ti != (ffesttTokenItem) &tl->first; ti = ti->next)
{
(*fn) (ti->t);
}
}
/* ffestt_tokenlist_handle -- Handle list of tokens
ffesttTokenList tl;
ffelexHandler handler;
handler = ffestt_tokenlist_handle(tl,handler);
The tokens in the list are passed to the handler(s). */
ffelexHandler
ffestt_tokenlist_handle (ffesttTokenList tl, ffelexHandler handler)
{
ffesttTokenItem ti;
for (ti = tl->first; ti != (ffesttTokenItem) &tl->first; ti = ti->next)
handler = (ffelexHandler) (*handler) (ti->t);
return (ffelexHandler) handler;
}
/* ffestt_tokenlist_kill -- Kill list of tokens
ffesttTokenList tl;
ffestt_tokenlist_kill(tl);
The tokens on the list are killed.
02-Mar-90 JCB 1.1
Don't kill the list itself or change it, since it will be trashed when
ffesta_scratch_pool is killed anyway, so kill only the lex tokens. */
void
ffestt_tokenlist_kill (ffesttTokenList tl)
{
ffesttTokenItem ti;
for (ti = tl->first; ti != (ffesttTokenItem) &tl->first; ti = ti->next)
{
ffelex_token_kill (ti->t);
}
}
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