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#include "parse.h"
#include "io.h"
#include "string.h"
#include "stdlib.h"
void parser_init( Parser *p, Scanner *s )
{
p->s = s;
}
void parser_done( Parser *p )
{
}
void parser_debug( Parser *p, int enable )
{
p->debug = enable;
if( p->debug ) {
print( "PARSER DEBUGGING ENABLED" );
}
}
static void print_symbol( scanner_Symbol sym )
{
char s[MAX_TMP_LEN];
char s2[MAX_TMP_LEN];
s[0] = '\0';
s2[0] = '\0';
switch( sym.sym ) {
case S_eof:
print( "PARSER(EOF)" );
break;
case S_INT:
print( "PARSER(INT)" );
break;
case S_VOID:
print( "PARSER(VOID)" );
break;
case S_RETURN:
print( "PARSER(RETURN)" );
break;
case S_DIV:
print( "PARSER(DIV)" );
break;
case S_IDENT:
strcat( s, "PARSER(IDENT," );
strcat( s, sym.data.s );
strcat_c( s, ')' );
print( s );
break;
case S_INT_CONST:
strcat( s, "PARSER(INT_CONST," );
itoa( sym.data.i, s2, 10 );
strcat( s, s2 );
strcat_c( s, ')' );
print( s );
break;
case S_SEMICOLON:
print( "PARSER(SEMICOLON)" );
break;
case S_LPARENT:
print( "PARSER(LPARENT)" );
break;
case S_RPARENT:
print( "PARSER(RPARENT)" );
break;
case S_LCURL:
print( "PARSER(LCURL)" );
break;
case S_RCURL:
print( "PARSER(RCURL)" );
break;
default:
print( "PARSER(<unknown symbol>)" );
}
}
void parser_parse( Parser *p )
{
scanner_Symbol s;
s = scanner_scan( p->s );
while( s.sym != S_eof ) {
if( p->debug ) {
print_symbol( s );
}
s = scanner_scan( p->s );
}
}
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