#include "config.h"
#include "system.h"
#include "ansidecl.h"
#include "flags.h"
#include "toplev.h"
#include "ggc.h"
#include "tree.h"
#include "diagnostic.h"
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <stdarg.h>
#include <string.h>
#include <stdio.h>
#include "treelang.h"
#include "treetree.h"
extern int yyparse (void);
static GTY(()) struct prod_token_parm_item *symbol_table = NULL;
const char *const language_string = "TREELANG - sample front end for GCC ";
void version (void);
extern struct cbl_tree_struct_parse_tree_top* parse_tree_top;
unsigned int option_parser_trace = 0;
unsigned int option_lexer_trace = 0;
unsigned char *in_fname = NULL;
static int version_done = 0;
static unsigned int work_nesting_level = 0;
int
treelang_decode_option (num_options_left, first_option_left)
int num_options_left ATTRIBUTE_UNUSED;
char** first_option_left;
{
if (first_option_left[0][0] != '-')
return 0;
switch (first_option_left[0][1])
{
case '-':
if (!strcmp (first_option_left[0],"--help"))
{
if (!version_done)
{
fputs (language_string, stdout);
fputs (version_string, stdout);
fputs ("\n", stdout);
version_done = 1;
}
fprintf (stdout, "Usage: tree1 [switches] -o output input\n");
return 1;
}
case 'v':
if (!strcmp (first_option_left[0],"-v"))
{
if (!version_done)
{
fputs (language_string, stdout);
fputs (version_string, stdout);
fputs ("\n", stdout);
version_done = 1;
}
return 1;
}
case 'y':
if (!strcmp (first_option_left[0],"-y"))
{
option_lexer_trace = 1;
option_parser_trace = 1;
return 1;
}
case 'f':
if (!strcmp (first_option_left[0],"-fparser-trace"))
{
option_parser_trace = 1;
return 1;
}
if (!strcmp (first_option_left[0],"-flexer-trace"))
{
option_lexer_trace = 1;
return 1;
}
return 0;
case 'w':
if (!strcmp (first_option_left[0],"-w"))
{
return 1;
}
return 0;
case 'W':
if (!strcmp (first_option_left[0],"-Wall"))
{
return 1;
}
return 0;
default:
return 0;
}
return 0;
}
const char*
treelang_init (const char* filename)
{
input_filename = "";
lineno = 0;
treelang_init_decl_processing ();
if (!filename || (filename[0] == ' ') || (!filename[0]))
{
if (!version_done)
{
fprintf (stderr, "No input file specified, try --help for help\n");
exit (1);
}
in_fname = NULL;
return NULL;
}
yyin = fopen (filename, "r");
if (!yyin)
{
fprintf (stderr, "Unable to open input file %s\n", filename);
exit (1);
}
input_filename = filename;
return (char*) (in_fname = (unsigned char*)filename);
}
void
treelang_finish (void)
{
fclose (yyin);
}
void
treelang_parse_file (int debug_flag ATTRIBUTE_UNUSED)
{
treelang_debug ();
yyparse ();
}
void *
my_malloc (size_t size)
{
void *mem;
mem = ggc_alloc (size);
if (!mem)
{
fprintf (stderr, "\nOut of memory\n");
abort ();
}
memset (mem, 0, size);
return mem;
}
struct prod_token_parm_item*
lookup_tree_name (struct prod_token_parm_item *prod)
{
struct prod_token_parm_item *this;
struct prod_token_parm_item *this_tok;
struct prod_token_parm_item *tok;
tok = SYMBOL_TABLE_NAME (prod);
for (this = symbol_table; this; this = this->tp.pro.next)
{
this_tok = this->tp.pro.main_token;
if (tok->tp.tok.length != this_tok->tp.tok.length)
continue;
if (memcmp (tok->tp.tok.chars, this_tok->tp.tok.chars, this_tok->tp.tok.length))
continue;
if (option_parser_trace)
fprintf (stderr, "Found symbol %s (%i:%i) as %i \n", tok->tp.tok.chars,
tok->tp.tok.lineno, tok->tp.tok.charno, NUMERIC_TYPE (this));
return this;
}
if (option_parser_trace)
fprintf (stderr, "Not found symbol %s (%i:%i) as %i \n", tok->tp.tok.chars,
tok->tp.tok.lineno, tok->tp.tok.charno, tok->type);
return NULL;
}
int
insert_tree_name (struct prod_token_parm_item *prod)
{
struct prod_token_parm_item *tok;
tok = SYMBOL_TABLE_NAME (prod);
if (lookup_tree_name (prod))
{
fprintf (stderr, "%s:%i:%i duplicate name %s\n", in_fname, tok->tp.tok.lineno,
tok->tp.tok.charno, tok->tp.tok.chars);
errorcount++;
return 1;
}
prod->tp.pro.next = symbol_table;
NESTING_LEVEL (prod) = work_nesting_level;
symbol_table = prod;
return 0;
}
struct prod_token_parm_item *
make_production (int type, struct prod_token_parm_item *main_tok)
{
struct prod_token_parm_item *prod;
prod = my_malloc (sizeof (struct prod_token_parm_item));
prod->category = production_category;
prod->type = type;
prod->tp.pro.main_token = main_tok;
return prod;
}
#include "gt-treelang-tree1.h"
#include "gtype-treelang.h"