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BUG: a program ending in a comment without EOL made lex loops forever.

This commit is contained in:
Roberto Ierusalimschy 1996-09-09 11:11:11 -03:00
parent d289ac81d3
commit f0cc2d5506
2 changed files with 5 additions and 10 deletions
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5
inout.c
View File

@ -5,7 +5,7 @@
** Also provides some predefined lua functions. ** Also provides some predefined lua functions.
*/ */
char *rcs_inout="$Id: inout.c,v 2.37 1996/05/28 21:07:32 roberto Exp $"; char *rcs_inout="$Id: inout.c,v 2.38 1996/07/12 20:00:26 roberto Exp roberto $";
#include <stdio.h> #include <stdio.h>
@ -31,7 +31,8 @@ static char *st;
*/ */
static int fileinput (void) static int fileinput (void)
{ {
return fgetc (fp); int c = fgetc(fp);
return (c == EOF) ? 0 : c;
} }
/* /*

10
lex.c
View File

@ -1,4 +1,4 @@
char *rcs_lex = "$Id: lex.c,v 2.33 1996/05/28 21:07:32 roberto Exp roberto $"; char *rcs_lex = "$Id: lex.c,v 2.34 1996/05/30 14:04:07 roberto Exp roberto $";
#include <ctype.h> #include <ctype.h>
@ -82,7 +82,6 @@ static int read_long_string (char *yytext, int buffsize)
yytext = luaI_buffer(buffsize *= 2); yytext = luaI_buffer(buffsize *= 2);
switch (current) switch (current)
{ {
case EOF:
case 0: case 0:
save(0); save(0);
return WRONGTOKEN; return WRONGTOKEN;
@ -132,10 +131,6 @@ int luaY_lex (void)
int tokensize = 0; int tokensize = 0;
switch (current) switch (current)
{ {
case EOF:
case 0:
save(0);
return 0;
case '\n': linelasttoken = ++lua_linenumber; case '\n': linelasttoken = ++lua_linenumber;
case ' ': case ' ':
case '\r': /* CR: to avoid problems with DOS/Windows */ case '\r': /* CR: to avoid problems with DOS/Windows */
@ -206,7 +201,6 @@ int luaY_lex (void)
yytext = luaI_buffer(buffsize *= 2); yytext = luaI_buffer(buffsize *= 2);
switch (current) switch (current)
{ {
case EOF:
case 0: case 0:
case '\n': case '\n':
save(0); save(0);
@ -316,7 +310,7 @@ int luaY_lex (void)
return NUMBER; return NUMBER;
} }
default: /* also end of file */ default: /* also end of program (0) */
{ {
save_and_next(); save_and_next();
return yytext[0]; return yytext[0];