version 1.8, 2000/12/05 01:24:57 |
version 1.46, 2010/08/03 04:34:44 |
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* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* |
* |
* $OpenXM: OpenXM_contrib2/asir2000/parse/lex.c,v 1.7 2000/12/01 04:34:01 noro Exp $ |
* $OpenXM: OpenXM_contrib2/asir2000/parse/lex.c,v 1.45 2010/04/16 07:13:42 noro Exp $ |
*/ |
*/ |
#include <ctype.h> |
#include <ctype.h> |
#include "ca.h" |
#include "ca.h" |
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#include "parse.h" |
#include "parse.h" |
#include <sys/types.h> |
#include <sys/types.h> |
#include <sys/stat.h> |
#include <sys/stat.h> |
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#if defined(VISUAL) |
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#include "ytab.h" |
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#else |
#include "y.tab.h" |
#include "y.tab.h" |
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#endif |
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#if FEP |
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#include <readline/readline.h> |
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#endif |
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extern IN asir_infile; |
static int Getc(); |
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static void Ungetc(int c); |
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static void Gets(char *s); |
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static int skipspace(); |
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extern INFILE asir_infile; |
extern struct oTKWD kwd[]; |
extern struct oTKWD kwd[]; |
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extern Obj VOIDobj; |
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int afternl(); |
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int myatoi(); |
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int aftercomment(); |
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extern int main_parser; |
extern int main_parser; |
extern char *parse_strp; |
extern char *parse_strp; |
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extern int recv_intr; |
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static int skipspace(); |
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static int Getc(); |
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static void Ungetc(); |
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static void Gets(); |
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#define NBUFSIZ (BUFSIZ*10) |
#define NBUFSIZ (BUFSIZ*10) |
#define TBUFSIZ (BUFSIZ) |
#define TBUFSIZ (BUFSIZ) |
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break;\ |
break;\ |
} |
} |
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yylex() |
int yylex() |
{ |
{ |
#define yylvalp (&yylval) |
#define yylvalp (&yylval) |
register int c,c1; |
register int c,c1; |
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N n,n1; |
N n,n1; |
Q q; |
Q q; |
Obj r; |
Obj r; |
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int floatingpoint = 0; |
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double dbl; |
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Real real; |
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double atof(); |
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extern int bigfloat; |
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/* initialize buffer pointers */ |
/* initialize buffer pointers */ |
nbuf = nbuf0; tbuf = tbuf0; |
nbuf = nbuf0; tbuf = tbuf0; |
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while ( ( c = Getc() ) == '0' ); |
while ( ( c = Getc() ) == '0' ); |
if ( c == '.' ) { |
if ( c == '.' ) { |
Ungetc(c); c = '0'; |
Ungetc(c); c = '0'; |
} else if ( c == 'x' ) { |
} else if ( c == 'x' || c == 'X' ) { |
for ( i = 0; i < 8; i++ ) |
for ( i = 0; i < 8; i++ ) |
nbuf[i] = '0'; |
nbuf[i] = '0'; |
READ_ALNUM_NBUF |
READ_ALNUM_NBUF |
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NTOQ(n1,1,q); r = (Obj)q; |
NTOQ(n1,1,q); r = (Obj)q; |
yylvalp->p = (pointer)r; |
yylvalp->p = (pointer)r; |
return ( FORMULA ); |
return ( FORMULA ); |
} else if ( c == 'b' ) { |
} else if ( c == 'b' || c == 'B' ) { |
for ( i = 0; i < 32; i++ ) |
for ( i = 0; i < 32; i++ ) |
nbuf[i] = '0'; |
nbuf[i] = '0'; |
READ_ALNUM_NBUF |
READ_ALNUM_NBUF |
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c = Getc(); |
c = Getc(); |
if ( c == '\\' ) { |
if ( c == '\\' ) { |
c1 = Getc(); |
c1 = Getc(); |
if ( c1 == 'n' ) |
if ( c1 == 'n' ) { |
c1 = '\n'; |
c1 = '\n'; |
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}else if ( c1 == 'r' ) { |
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c1 = '\r'; |
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}else if ( c1 == 't' ) { |
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c1 = '\t'; |
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}else if ( isdigit(c1) ){ |
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d = c1 - '0'; |
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c1 = Getc(); |
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if ( isdigit(c1) ) { |
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d = 8*d + (c1 - '0'); |
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c1 = Getc(); |
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if ( isdigit(c1) ) { |
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d = 8*d + (c1 - '0'); |
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}else { |
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Ungetc(c1); |
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} |
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}else { |
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Ungetc(c1); |
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} |
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c1 = d; |
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} |
REALLOC_NBUF nbuf[i++] = c1; |
REALLOC_NBUF nbuf[i++] = c1; |
} else { |
} else { |
REALLOC_NBUF nbuf[i++] = c; |
REALLOC_NBUF nbuf[i++] = c; |
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REALLOC_NBUF nbuf[i++] = c; |
REALLOC_NBUF nbuf[i++] = c; |
READ_DIGIT_NBUF |
READ_DIGIT_NBUF |
if ( c == '.' ) { |
if ( c == '.' ) { |
double dbl; |
floatingpoint = 1; |
Real real; |
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double atof(); |
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extern int bigfloat; |
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REALLOC_NBUF nbuf[i++] = c; |
REALLOC_NBUF nbuf[i++] = c; |
READ_DIGIT_NBUF |
READ_DIGIT_NBUF |
if ( c == 'e' ) { |
if ( c == 'e' || c == 'E' ) { |
REALLOC_NBUF nbuf[i++] = c; |
REALLOC_NBUF nbuf[i++] = c; |
c = Getc(); |
c = Getc(); |
if ( (c == '+') || (c == '-') ) { |
if ( (c == '+') || (c == '-') ) { |
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Ungetc(c); |
Ungetc(c); |
READ_DIGIT_NBUF |
READ_DIGIT_NBUF |
} |
} |
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} else if ( c == 'e' || c == 'E' ) { |
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floatingpoint = 1; |
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REALLOC_NBUF nbuf[i++] = c; |
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c = Getc(); |
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if ( (c == '+') || (c == '-') ) { |
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REALLOC_NBUF nbuf[i++] = c; |
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} else |
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Ungetc(c); |
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READ_DIGIT_NBUF |
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} |
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if ( floatingpoint ) { |
Ungetc(c); REALLOC_NBUF nbuf[i] = 0; |
Ungetc(c); REALLOC_NBUF nbuf[i] = 0; |
#if PARI |
#if defined(PARI) |
if ( !bigfloat ) { |
if ( !bigfloat ) { |
dbl = (double)atof(nbuf+DLENGTH); |
dbl = (double)atof(nbuf+DLENGTH); |
MKReal(dbl,real); r = (Obj)real; |
MKReal(dbl,real); r = (Obj)real; |
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} |
} |
yylvalp->p = (pointer)r; |
yylvalp->p = (pointer)r; |
return ( FORMULA ); |
return ( FORMULA ); |
} else if ( isalpha(c) ) { |
} else if ( isalpha(c) || c == ':' || c == '_' ) { |
i = 0; |
if ( c == ':' ) { |
tbuf[i++] = c; |
c1 = Getc(); |
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if ( c1 != ':' ) { |
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Ungetc(c1); |
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return c; |
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} |
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c1 = Getc(); |
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if ( !isalpha(c1) ) { |
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Ungetc(c1); |
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return COLONCOLON; |
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} |
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i = 0; |
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tbuf[i++] = ':'; |
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tbuf[i++] = ':'; |
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tbuf[i++] = c1; |
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} else { |
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i = 0; |
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tbuf[i++] = c; |
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} |
while ( 1 ) { |
while ( 1 ) { |
c = Getc(); |
c = Getc(); |
if ( isalpha(c)||isdigit(c)||(c=='_') ) { |
if ( isalpha(c)||isdigit(c)||(c=='_')||(c=='.') ) { |
REALLOC_TBUF tbuf[i++] = c; |
REALLOC_TBUF tbuf[i++] = c; |
} else |
} else |
break; |
break; |
} |
} |
REALLOC_TBUF tbuf[i] = 0; Ungetc(c); |
REALLOC_TBUF tbuf[i] = 0; Ungetc(c); |
if ( isupper(tbuf[0]) ) { |
if ( isupper(tbuf[0]) || (tbuf[0] == '_' && isupper(tbuf[1])) ) { |
cptr = (char *)MALLOC(strlen(tbuf)+1); strcpy(cptr,tbuf); |
cptr = (char *)MALLOC(strlen(tbuf)+1); strcpy(cptr,tbuf); |
yylvalp->p = (pointer)cptr; |
yylvalp->p = (pointer)cptr; |
return UCASE; |
return UCASE; |
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Ungetc(c); REALLOC_TBUF tbuf[i] = 0; |
Ungetc(c); REALLOC_TBUF tbuf[i] = 0; |
if ( !strcmp(tbuf,"@p") ) |
if ( !strcmp(tbuf,"@p") ) |
return GFPNGEN; |
return GFPNGEN; |
else if ( !strcmp(tbuf,"@i") ) { |
else if ( !strcmp(tbuf,"@s") ) |
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return GFSNGEN; |
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else if ( !strcmp(tbuf,"@void") ) { |
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yylvalp->p = VOIDobj; |
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return FORMULA; |
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} else if ( !strcmp(tbuf,"@i") ) { |
extern pointer IU; |
extern pointer IU; |
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yylvalp->p = IU; |
yylvalp->p = IU; |
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} else if ( !strcmp(tbuf,"@equiv") ) { |
} else if ( !strcmp(tbuf,"@equiv") ) { |
yylvalp->i = (int)L_EQUIV; |
yylvalp->i = (int)L_EQUIV; |
return FOP_EQUIV; |
return FOP_EQUIV; |
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} else if ( !strcmp(tbuf,"@grlex") ) { |
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yylvalp->p = Symbol_grlex; |
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return FORMULA; |
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} else if ( !strcmp(tbuf,"@glex") ) { |
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yylvalp->p = Symbol_glex; |
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return FORMULA; |
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} else if ( !strcmp(tbuf,"@lex") ) { |
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yylvalp->p = Symbol_lex; |
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return FORMULA; |
} else { |
} else { |
cptr = (char *)MALLOC(strlen(tbuf)+1); strcpy(cptr,tbuf); |
cptr = (char *)MALLOC(strlen(tbuf)+1); strcpy(cptr,tbuf); |
yylvalp->p = (pointer)cptr; |
yylvalp->p = (pointer)cptr; |
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void purge_stdin() |
void purge_stdin() |
{ |
{ |
#if defined(__FreeBSD__) |
#if defined(__FreeBSD__) || defined(__DARWIN__) |
fpurge(stdin); |
fpurge(stdin); |
#elif defined(linux) |
#elif defined(linux) |
stdin->_IO_read_end = stdin->_IO_read_base; |
stdin->_IO_read_end = stdin->_IO_read_base; |
stdin->_IO_read_ptr = stdin->_IO_read_base; |
stdin->_IO_read_ptr = stdin->_IO_read_base; |
#elif defined(sparc) || defined(__alpha) || defined(__SVR4) || defined(mips) |
#elif defined(VISUAL_LIB) |
stdin->_ptr = stdin->_base; stdin->_cnt = 0; |
void w_purge_stdin(); |
#elif defined(VISUAL) |
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w_purge_stdin(); |
w_purge_stdin(); |
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#elif defined(sparc) || defined(__alpha) || defined(__SVR4) || defined(mips) || defined(VISUAL) || defined(_IBMR2) |
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stdin->_ptr = stdin->_base; stdin->_cnt = 0; |
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#elif (defined(__MACH__) && defined(__ppc__)) || defined(__CYGWIN__) || defined(__FreeBSD__) || defined(__INTERIX) |
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stdin->_r = 0; stdin->_p = stdin->_bf._base; |
#else |
#else |
--->FIXIT |
--->FIXIT |
#endif |
#endif |
Line 418 static int skipspace() { |
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Line 492 static int skipspace() { |
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for ( c = Getc(); ; ) |
for ( c = Getc(); ; ) |
switch ( c ) { |
switch ( c ) { |
case ' ': case '\t': |
case ' ': case '\t': case '\r': |
c = Getc(); break; |
c = Getc(); break; |
case '\n': |
case '\n': |
c = afternl(); break; |
c = afternl(); break; |
case '/': |
case '/': |
if ( (c1 = Getc()) == '*' ) |
if ( (c1 = Getc()) == '*' ) |
c = aftercomment(); |
c = aftercomment(); |
Line 436 static int skipspace() { |
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Line 510 static int skipspace() { |
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int afternl() { |
int afternl() { |
int c,ac,i,quote; |
int c,ac,i,quote; |
char *ptr; |
char *ptr,*buf0; |
char *av[BUFSIZ]; |
char *av[BUFSIZ]; |
static int ilevel = 0; |
static int ilevel = 0; |
char buf[BUFSIZ]; |
char buf[BUFSIZ]; |
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asir_infile->ln++; |
asir_infile->ln++; |
while ( (c = Getc()) == '#' ) { |
while ( (c = Getc()) == '#' ) { |
Gets(buf); |
Gets(buf); |
for ( quote = 0, ptr = buf; *ptr; ptr++ ) |
#define LINE "line" |
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if ( !strncmp(buf,LINE,strlen(LINE)) ) buf0 = buf+strlen(LINE); |
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else buf0 = buf; |
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for ( quote = 0, ptr = buf0; *ptr; ptr++ ) |
if ( *ptr == '"' ) |
if ( *ptr == '"' ) |
quote = quote ? 0 : 1; |
quote = quote ? 0 : 1; |
else if ( quote && (*ptr == ' ') ) |
else if ( quote && (*ptr == ' ') ) |
*ptr = '_'; |
*ptr = '_'; |
stoarg(buf,&ac,av); |
stoarg(buf0,&ac,av); |
if ( ac == 3 ) |
if ( ac == 3 ) |
if ( (i = atoi(av[2])) == 1 ) |
if ( (i = atoi(av[2])) == 1 ) |
ilevel++; |
ilevel++; |
Line 466 int aftercomment() { |
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Line 543 int aftercomment() { |
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int c,c1; |
int c,c1; |
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for ( c = Getc(); ; ) { |
for ( c = Getc(); ; ) { |
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if ( c == '\n' ) asir_infile->ln++; |
c1 = Getc(); |
c1 = Getc(); |
if ( (c == '*') && (c1 == '/') ) |
if ( (c == '*') && (c1 == '/') ) |
return Getc(); |
return Getc(); |
Line 474 int aftercomment() { |
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Line 552 int aftercomment() { |
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} |
} |
} |
} |
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int myatoi(s) |
int myatoi(char *s) |
char *s; |
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{ |
{ |
int i,r; |
int i,r; |
for ( i = 0, r = 0; i < DLENGTH; i++ ) r = r * 10 + ( s[i] - '0' ); |
for ( i = 0, r = 0; i < DLENGTH; i++ ) r = r * 10 + ( s[i] - '0' ); |
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} |
} |
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extern int ox_do_copy; |
extern int ox_do_copy; |
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extern int I_am_server; |
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extern JMP_BUF main_env; |
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extern int at_root; |
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extern LIST LastStackTrace; |
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extern char *CUR_FUNC; |
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void yyerror(s) |
void yyerror(char *s) |
char *s; |
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{ |
{ |
if ( main_parser ) |
STRING fname,name,kwd; |
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USINT u; |
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NODE t; |
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LIST l,l2; |
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if ( main_parser ) { |
if ( ox_do_copy ) { |
if ( ox_do_copy ) { |
/* push errors to DebugStack */ |
/* push errors to DebugStack */ |
} else { |
} else { |
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else |
else |
fprintf(stderr,"\"%s\", near line %d: %s\n",asir_infile->name,asir_infile->ln,s); |
fprintf(stderr,"\"%s\", near line %d: %s\n",asir_infile->name,asir_infile->ln,s); |
} |
} |
else |
if ( I_am_server ) { |
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if ( NEXT(asir_infile) ) { |
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/* error in a file; record the position */ |
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MKSTR(fname,asir_infile->name); |
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if ( CPVS == GPVS ) |
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MKSTR(name,""); |
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else |
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MKSTR(name,CUR_FUNC); |
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MKUSINT(u,asir_infile->ln); |
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t = mknode(3,fname,name,u); MKLIST(l,t); |
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/* line number at the toplevel */ |
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MKSTR(fname,"toplevel"); MKUSINT(u,at_root); |
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t = mknode(2,fname,u); MKLIST(l2,t); |
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t = mknode(2,l2,l); |
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} else { |
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MKSTR(fname,"toplevel"); MKUSINT(u,asir_infile->ln); |
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t = mknode(2,fname,u); MKLIST(l,t); |
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t = mknode(1,l); |
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} |
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MKLIST(l,t); |
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MKSTR(kwd,"asir_where"); t = mknode(2,kwd,l); |
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MKLIST(LastStackTrace,t); |
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set_lasterror(s); |
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LONGJMP(main_env,1); |
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} |
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} else |
fprintf(stderr,"exprparse : %s\n",s); |
fprintf(stderr,"exprparse : %s\n",s); |
} |
} |
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int echoback; |
int echoback; |
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extern int read_exec_file, do_fep, do_file; |
extern int do_fep, do_file; |
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int readline_getc(); |
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void readline_ungetc(); |
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int Egetc(); |
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void Eungetc(); |
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unsigned char encrypt_char(unsigned char); |
unsigned char encrypt_char(unsigned char); |
unsigned char decrypt_char(unsigned char); |
unsigned char decrypt_char(unsigned char); |
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int Egetc(fp) |
int Egetc(FILE *fp) |
FILE *fp; |
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{ |
{ |
int c; |
int c; |
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if ( fp ) { |
if ( fp ) { |
c = getc(fp); |
#if FEP |
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if ( do_fep && isatty(fileno(fp)) ) |
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c = readline_getc(); |
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else |
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#endif |
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c = getc(fp); |
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#if defined(VISUAL) |
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if ( recv_intr ) { |
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#include <signal.h> |
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if ( recv_intr == 1 ) { |
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recv_intr = 0; |
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int_handler(SIGINT); |
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} else { |
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recv_intr = 0; |
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ox_usr1_handler(0); |
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} |
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} |
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#endif |
if ( c == EOF ) |
if ( c == EOF ) |
return c; |
return c; |
if ( asir_infile->encoded ) |
if ( asir_infile->encoded ) |
c = decrypt_char((unsigned char)c); |
c = decrypt_char((unsigned char)c); |
return c; |
return c; |
} else if ( read_exec_file ) |
} else { |
return EOF; |
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else { |
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c = *parse_strp++; |
c = *parse_strp++; |
if ( !c ) |
if ( !c ) |
return EOF; |
return EOF; |
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} |
} |
} |
} |
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void Eungetc(c,fp) |
void Eungetc(int c,FILE *fp) |
int c; |
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FILE *fp; |
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{ |
{ |
if ( fp ) { |
if ( fp ) { |
if ( asir_infile->encoded ) |
if ( asir_infile->encoded ) |
c = (int)encrypt_char((unsigned char)c); |
c = (int)encrypt_char((unsigned char)c); |
ungetc(c,fp); |
#if FEP |
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if ( do_fep && isatty(fileno(fp)) ) |
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readline_ungetc(); |
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else |
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#endif |
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ungetc(c,fp); |
} else |
} else |
*--parse_strp = c; |
*--parse_strp = c; |
} |
} |
Line 555 static int Getc() { |
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Line 678 static int Getc() { |
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if ((c = Egetc(asir_infile->fp)) == EOF) |
if ((c = Egetc(asir_infile->fp)) == EOF) |
if ( NEXT(asir_infile) ) { |
if ( NEXT(asir_infile) ) { |
closecurrentinput(); |
closecurrentinput(); |
c = Getc(); |
/* if the input is the top level, generate error */ |
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if ( !NEXT(asir_infile) ) |
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error("end-of-file detected during parsing"); |
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else |
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c = Getc(); |
break; |
break; |
} else if ( read_exec_file || do_file ) |
} else if ( asir_infile->fp || do_file ) { |
asir_terminate(2); |
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else { |
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if ( asir_infile->fp ) |
if ( asir_infile->fp ) |
clearerr(asir_infile->fp); |
clearerr(asir_infile->fp); |
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asir_terminate(2); |
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} else { |
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error("end-of-line detected during parsing"); |
} |
} |
else |
else |
break; |
break; |
Line 573 static int Getc() { |
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Line 701 static int Getc() { |
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return ( c ); |
return ( c ); |
} |
} |
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static void Ungetc(c) { |
static void Ungetc(int c) { |
if ( main_parser ) { |
if ( main_parser ) { |
Eungetc(c,asir_infile->fp); |
Eungetc(c,asir_infile->fp); |
if ( echoback ) |
if ( echoback ) |
Line 582 static void Ungetc(c) { |
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Line 710 static void Ungetc(c) { |
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*--parse_strp = c; |
*--parse_strp = c; |
} |
} |
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static void Gets(s) |
static void Gets(char *s) |
char *s; |
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{ |
{ |
int c; |
int c; |
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*s++ = c; |
*s++ = c; |
*s = 0; |
*s = 0; |
} |
} |
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#if FEP |
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static char *readline_line; |
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static int readline_nc,readline_index; |
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char *readline_console(); |
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int readline_getc() |
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{ |
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char buf[BUFSIZ]; |
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if ( !readline_nc ) { |
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if ( readline_line ) |
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free(readline_line); |
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sprompt(buf); |
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readline_line = readline_console(buf); |
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readline_nc = strlen(readline_line); |
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readline_index = 0; |
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} |
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readline_nc--; |
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return readline_line[readline_index++]; |
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} |
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|
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void readline_ungetc() |
|
{ |
|
readline_nc++; readline_index--; |
|
} |
|
|
|
char *readline_console(char *prompt) |
|
{ |
|
char *line; |
|
int exp_result; |
|
char *expansion; |
|
|
|
while ( 1 ) { |
|
line = (char *)readline(prompt); |
|
if ( line && *line ) { |
|
using_history(); |
|
exp_result = history_expand(line,&expansion); |
|
if ( !exp_result ) { |
|
free(expansion); |
|
for ( ; isspace((unsigned char)*line); line++ ); |
|
add_history(line); |
|
break; |
|
} else if ( exp_result > 0 ) { |
|
free(line); |
|
line = expansion; |
|
break; |
|
} |
|
} |
|
} |
|
return line; |
|
} |
|
#endif |