fflush(stderr);
exit(1);
}
+void warning(const char*format, ...)
+{
+ char buf[1024];
+ int l;
+ va_list arglist;
+ if(!verbose)
+ return;
+ va_start(arglist, format);
+ vsprintf(buf, format, arglist);
+ va_end(arglist);
+ fprintf(stderr, "%s:%d:%d: warning: %s\n", current_filename_short, current_line, current_column, buf);
+ fflush(stderr);
+}
#ifndef YY_CURRENT_BUFFER
//BEGIN(INITIAL); keep context
}
+string_t string_unescape(const char*in, int l)
+{
+ int len=0;
+ const char*s = in;
+ const char*end = &in[l];
+ char*n = (char*)malloc(l);
+ char*o = n;
+ while(s<end) {
+ if(*s!='\\') {
+ o[len++] = *s;
+ s++;
+ continue;
+ }
+ s++; //skip past '\'
+ if(s==end) syntaxerror("invalid \\ at end of string");
+
+ /* handle the various line endings (mac, dos, unix) */
+ if(*s=='\r') {
+ s++;
+ if(s==end) break;
+ if(*s=='\n')
+ s++;
+ continue;
+ }
+ if(*s=='\n') {
+ s++;
+ continue;
+ }
+ switch(*s) {
+ case '\\': o[len++] = '\\';s++; break;
+ case '"': o[len++] = '"';s++; break;
+ case 'b': o[len++] = '\b';s++; break;
+ case 'f': o[len++] = '\f';s++; break;
+ case 'n': o[len++] = '\n';s++; break;
+ case 'r': o[len++] = '\r';s++; break;
+ case 't': o[len++] = '\t';s++; break;
+ case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': {
+ unsigned int num=0;
+ int nr = 0;
+ while(strchr("01234567", *s) && nr<3 && s<end) {
+ num <<= 3;
+ num |= *s-'0';
+ nr++;
+ s++;
+ }
+ if(num>256)
+ syntaxerror("octal number out of range (0-255): %d", num);
+ o[len++] = num;
+ continue;
+ }
+ case 'x': case 'u': {
+ int max=2;
+ char bracket = 0;
+ char unicode = 0;
+ if(*s == 'u') {
+ max = 6;
+ unicode = 1;
+ }
+ s++;
+ if(s==end) syntaxerror("invalid \\u or \\x at end of string");
+ if(*s == '{') {
+ s++;
+ if(s==end) syntaxerror("invalid \\u{ at end of string");
+ bracket=1;
+ }
+ unsigned int num=0;
+ int nr = 0;
+ while(strchr("0123456789abcdefABCDEF", *s) && (bracket || nr < max) && s<end) {
+ num <<= 4;
+ if(*s>='0' && *s<='9') num |= *s - '0';
+ if(*s>='a' && *s<='f') num |= *s - 'a' + 10;
+ if(*s>='A' && *s<='F') num |= *s - 'A' + 10;
+ nr++;
+ s++;
+ }
+ if(bracket) {
+ if(*s=='}' && s<end) {
+ s++;
+ } else {
+ syntaxerror("missing terminating '}'");
+ }
+ }
+ if(unicode) {
+ char*utf8 = getUTF8(num);
+ while(*utf8) {
+ o[len++] = *utf8++;
+ }
+ } else {
+ if(num>256)
+ syntaxerror("byte out of range (0-255): %d", num);
+ o[len++] = num;
+ }
+ break;
+ }
+ default:
+ syntaxerror("unknown escape sequence: \"\\%c\"", *s);
+ }
+ }
+ string_t out = string_new(n, len);
+ o[len]=0;
+ return out;
+}
+
static void handleString(char*s, int len)
{
if(s[0]=='"') {
s++;len-=2;
}
else syntaxerror("String incorrectly terminated");
- s[len] = 0;
- avm2_lval.string = s;
+
+
+ avm2_lval.str = string_unescape(s, len);
}
char start_of_expression;
-static inline int m(int type)
+static inline int mkid(int type)
{
char*s = malloc(yyleng+1);
memcpy(s, yytext, yyleng);
s[yyleng]=0;
+ avm2_lval.id = s;
+ return type;
+}
- NEW(token_t,t);
- t->type = type;
- t->text = s;
- avm2_lval.token = t;
+static inline int m(int type)
+{
+ avm2_lval.token = type;
return type;
}
+
static char numberbuf[64];
-static inline int handlenumber()
+static char*nrbuf()
{
if(yyleng>sizeof(numberbuf)-1)
syntaxerror("decimal number overflow");
-
char*s = numberbuf;
memcpy(s, yytext, yyleng);
s[yyleng]=0;
+ return s;
+}
- int t;
- char is_float=0;
- for(t=0;t<yyleng;t++) {
- if(yytext[t]=='.') {
- if(is_float)
- syntaxerror("Invalid number");
- is_float=1;
- } else if(!strchr("-0123456789", yytext[t])) {
- syntaxerror("Invalid number");
- }
- }
- if(is_float) {
- avm2_lval.number_float = atof(s);
- return T_FLOAT;
- }
+static inline int setint(int v)
+{
+ avm2_lval.number_int = v;
+ if(v>-128)
+ return T_BYTE;
+ else if(v>=-32768)
+ return T_SHORT;
+ else
+ return T_INT;
+}
+static inline int setuint(unsigned int v)
+{
+ avm2_lval.number_uint = v;
+ if(v<128)
+ return T_BYTE;
+ else if(v<32768)
+ return T_SHORT;
+ else
+ return T_UINT;
+}
+
+static inline int handlefloat()
+{
+ char*s = nrbuf();
+ avm2_lval.number_float = atof(s);
+ return T_FLOAT;
+}
+
+static inline int handleint()
+{
+ char*s = nrbuf();
char l = (yytext[0]=='-');
char*max = l?"1073741824":"2147483647";
}
if(yytext[0]=='-') {
int v = atoi(s);
- avm2_lval.number_int = v;
- if(v>-128)
- return T_BYTE;
- else if(v>=-32768)
- return T_SHORT;
- else
- return T_INT;
+ return setint(v);
} else {
unsigned int v = 0;
+ int t;
for(t=0;t<yyleng;t++) {
v*=10;
v+=yytext[t]-'0';
}
- avm2_lval.number_uint = v;
- if(v<128)
- return T_BYTE;
- else if(v<32768)
- return T_SHORT;
- else
- return T_UINT;
+ return setuint(v);
+ }
+}
+
+static inline int handlehex()
+{
+ char l = (yytext[0]=='-');
+
+ if(yyleng-l>8)
+ syntaxerror("integer overflow");
+ int t;
+ unsigned int v = 0;
+ for(t=l;t<yyleng;t++) {
+ v<<=4;
+ char c = yytext[t];
+ if(c>='0' && c<='9')
+ v|=(c&15);
+ else if(c>='a' && c<='f' ||
+ c>='A' && c<='F')
+ v|=(c&0x0f)+9;
+ }
+ if(l && v>1073741824)
+ syntaxerror("signed integer overflow");
+ if(!l && v>2147483647)
+ syntaxerror("unsigned integer overflow");
+
+ if(l) {
+ return setint(-(int)v);
+ } else {
+ return setuint(v);
}
}
#define c() {countlines(yytext, yyleng);}
+//Boolean {c();return m(KW_BOOLEAN);}
+//int {c();return m(KW_INT);}
+//uint {c();return m(KW_UINT);}
+//Number {c();return m(KW_NUMBER);}
%}
%s REGEXPOK
NAME [a-zA-Z_][a-zA-Z0-9_\\]*
-NUMBER -?[0-9]+(\.[0-9]*)?
+HEXINT 0x[a-zA-Z0-9]+
+INT [0-9]+
+FLOAT [0-9]+(\.[0-9]*)?|\.[0-9]+
+
+HEXWITHSIGN [+-]?({HEXINT})
+INTWITHSIGN [+-]?({INT})
+FLOATWITHSIGN [+-]?({FLOAT})
STRING ["](\\[\x00-\xff]|[^\\"\n])*["]|['](\\[\x00-\xff]|[^\\'\n])*[']
S [ \n\r\t]
-MULTILINE_COMMENT [/][*]+([*][^/]|[^/*]|[\x00-\x1f])*[*]+[/]
+MULTILINE_COMMENT [/][*]+([*][^/]|[^/*]|[^*][/]|[\x00-\x1f])*[*]+[/]
SINGLELINE_COMMENT \/\/[^\n]*\n
REGEXP [/]([^/\n]|\\[/])*[/][a-zA-Z]*
%%
<BEGINNING,REGEXPOK>{
{REGEXP} {c(); BEGIN(INITIAL);return m(T_REGEXP);}
+{HEXWITHSIGN} {c(); BEGIN(INITIAL);return handlehex();}
+{INTWITHSIGN} {c(); BEGIN(INITIAL);return handleint();}
+{FLOATWITHSIGN} {c(); BEGIN(INITIAL);return handlefloat();}
}
\xef\xbb\xbf {/* utf 8 bom */}
{S} {c();}
-{NUMBER} {c(); BEGIN(INITIAL);return handlenumber();}
+{HEXINT} {c(); BEGIN(INITIAL);return handlehex();}
+{INT} {c(); BEGIN(INITIAL);return handleint();}
+{FLOAT} {c(); BEGIN(INITIAL);return handlefloat();}
3rr0r {/* for debugging: generates a tokenizer-level error */
syntaxerror("3rr0r");}
-[&][&] {BEGIN(REGEXPOK);return m(T_ANDAND);}
-[|][|] {BEGIN(REGEXPOK);return m(T_OROR);}
-[!][=] {BEGIN(REGEXPOK);return m(T_NE);}
-[=][=][=] {BEGIN(REGEXPOK);return m(T_EQEQEQ);}
-[=][=] {BEGIN(REGEXPOK);return m(T_EQEQ);}
-[>][=] {return m(T_GE);}
-[<][=] {return m(T_LE);}
-[+][=] {return m(T_PLUSBY);}
-[-][=] {return m(T_MINUSBY);}
-[-][-] {BEGIN(INITIAL);return m(T_MINUSMINUS);}
-[+][+] {BEGIN(INITIAL);return m(T_PLUSPLUS);}
-\.\. {return m(T_DOTDOT);}
-\. {return m('.');}
-:: {return m(T_COLONCOLON);}
-: {return m(':');}
-implements {return m(KW_IMPLEMENTS);}
-interface {return m(KW_INTERFACE);}
-namespace {return m(KW_NAMESPACE);}
-protected {return m(KW_PROTECTED);}
-override {return m(KW_OVERRIDE);}
-internal {return m(KW_INTERNAL);}
-function {return m(KW_FUNCTION);}
-package {return m(KW_PACKAGE);}
-private {return m(KW_PRIVATE);}
-Boolean {return m(KW_BOOLEAN);}
-dynamic {return m(KW_DYNAMIC);}
-extends {return m(KW_EXTENDS);}
-return {return m(KW_RETURN);}
-public {return m(KW_PUBLIC);}
-native {return m(KW_NATIVE);}
-static {return m(KW_STATIC);}
-import {return m(KW_IMPORT);}
-Number {return m(KW_NUMBER);}
-while {return m(KW_WHILE);}
-class {return m(KW_CLASS);}
-const {return m(KW_CONST);}
-final {return m(KW_FINAL);}
-false {return m(KW_FALSE);}
-break {return m(KW_BREAK);}
-true {return m(KW_TRUE);}
-uint {return m(KW_UINT);}
-null {return m(KW_NULL);}
-else {return m(KW_ELSE);}
-use {return m(KW_USE);}
-int {return m(KW_INT);}
-new {return m(KW_NEW);}
-get {return m(KW_GET);}
-for {return m(KW_FOR);}
-set {return m(KW_SET);}
-var {return m(KW_VAR);}
-is {return m(KW_IS) ;}
-if {return m(KW_IF) ;}
-as {return m(KW_AS);}
-{NAME} {c();BEGIN(INITIAL);return m(T_IDENTIFIER);}
-
-[+-\/*^~@$!%&\(=\[\]\{\}|?:;,.<>] {c();BEGIN(REGEXPOK);return m(yytext[0]);}
+[&][&] {c();BEGIN(REGEXPOK);return m(T_ANDAND);}
+[|][|] {c();BEGIN(REGEXPOK);return m(T_OROR);}
+[!][=] {c();BEGIN(REGEXPOK);return m(T_NE);}
+[!][=][=] {c();BEGIN(REGEXPOK);return m(T_NEE);}
+[=][=][=] {c();BEGIN(REGEXPOK);return m(T_EQEQEQ);}
+[=][=] {c();BEGIN(REGEXPOK);return m(T_EQEQ);}
+[>][=] {c();return m(T_GE);}
+[<][=] {c();return m(T_LE);}
+[-][-] {c();BEGIN(INITIAL);return m(T_MINUSMINUS);}
+[+][+] {c();BEGIN(INITIAL);return m(T_PLUSPLUS);}
+[+][=] {c();return m(T_PLUSBY);}
+[-][=] {c();return m(T_MINUSBY);}
+[/][=] {c();return m(T_DIVBY);}
+[%][=] {c();return m(T_MODBY);}
+[*][=] {c();return m(T_MULBY);}
+[>][>][=] {c();return m(T_SHRBY);}
+[<][<][=] {c();return m(T_SHLBY);}
+[>][>][>][=] {c();return m(T_USHRBY);}
+[<][<] {c();return m(T_SHL);}
+[>][>][>] {c();return m(T_USHR);}
+[>][>] {c();return m(T_SHR);}
+\.\.\. {c();return m(T_DOTDOTDOT);}
+\.\. {c();return m(T_DOTDOT);}
+\. {c();return m('.');}
+:: {c();return m(T_COLONCOLON);}
+: {c();return m(':');}
+implements {c();return m(KW_IMPLEMENTS);}
+interface {c();return m(KW_INTERFACE);}
+namespace {c();return m(KW_NAMESPACE);}
+protected {c();return m(KW_PROTECTED);}
+undefined {c();return m(KW_UNDEFINED);}
+override {c();return m(KW_OVERRIDE);}
+internal {c();return m(KW_INTERNAL);}
+function {c();return m(KW_FUNCTION);}
+package {c();return m(KW_PACKAGE);}
+private {c();return m(KW_PRIVATE);}
+dynamic {c();return m(KW_DYNAMIC);}
+extends {c();return m(KW_EXTENDS);}
+delete {c();return m(KW_DELETE);}
+return {c();return m(KW_RETURN);}
+public {c();return m(KW_PUBLIC);}
+native {c();return m(KW_NATIVE);}
+static {c();return m(KW_STATIC);}
+import {c();return m(KW_IMPORT);}
+typeof {c();return m(KW_TYPEOF);}
+while {c();return m(KW_WHILE);}
+class {c();return m(KW_CLASS);}
+const {c();return m(KW_CONST);}
+final {c();return m(KW_FINAL);}
+false {c();return m(KW_FALSE);}
+break {c();return m(KW_BREAK);}
+super {c();return m(KW_SUPER);}
+void {c();return m(KW_VOID);}
+true {c();return m(KW_TRUE);}
+null {c();return m(KW_NULL);}
+else {c();return m(KW_ELSE);}
+use {c();return m(KW_USE);}
+new {c();return m(KW_NEW);}
+get {c();return m(KW_GET);}
+for {c();return m(KW_FOR);}
+set {c();return m(KW_SET);}
+var {c();return m(KW_VAR);}
+is {c();return m(KW_IS) ;}
+if {c();return m(KW_IF) ;}
+as {c();return m(KW_AS);}
+{NAME} {c();BEGIN(INITIAL);return mkid(T_IDENTIFIER);}
+
+[+-\/*^~@$!%&\(=\[\]\{\}|?:;,<>] {c();BEGIN(REGEXPOK);return m(yytext[0]);}
[\)\]] {c();BEGIN(INITIAL);return m(yytext[0]);}
. {char c1=yytext[0];
}
static char mbuf[256];
-char*token2string(token_t*t)
+char*token2string(enum yytokentype nr, YYSTYPE v)
{
- int nr=t->type;
if(nr==T_STRING) return "<string>";
else if(nr==T_INT) return "<int>";
else if(nr==T_UINT) return "<uint>";
+ else if(nr==T_BYTE) return "<byte>";
else if(nr==T_FLOAT) return "<float>";
else if(nr==T_REGEXP) return "REGEXP";
else if(nr==T_EOF) return "***END***";
else if(nr==KW_VAR) return "var";
else if(nr==KW_IS) return "is";
else if(nr==KW_AS) return "as";
- else if(nr==T_IDENTIFIER) {
- if(strlen(t->text)>sizeof(mbuf)-1)
- return "ID(...)";
- sprintf(mbuf, "ID(%s)", t->text);
- return mbuf;
- } else {
+ else if(nr==T_IDENTIFIER) return "ID";
+ else {
sprintf(mbuf, "%d", nr);
return mbuf;
}