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qzdoom/tools/re2c/scanner.cc

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/* Generated by re2c 0.9.3 on Wed May 26 17:58:01 2004 */
#line 1 "scanner.re"
/* $Id: scanner.re,v 1.10 2004/05/13 02:58:18 nuffer Exp $ */
#include <stdlib.h>
#include <string.h>
#include <iostream>
#include "scanner.h"
#include "parser.h"
#include "y.tab.h"
extern YYSTYPE yylval;
#ifndef MAX
#define MAX(a,b) (((a)>(b))?(a):(b))
#endif
#define BSIZE 8192
#define YYCTYPE char
#define YYCURSOR cursor
#define YYLIMIT lim
#define YYMARKER ptr
#define YYFILL(n) {cursor = fill(cursor);}
#define RETURN(i) {cur = cursor; return i;}
Scanner::Scanner(std::istream& i) : in(i),
bot(NULL), tok(NULL), ptr(NULL), cur(NULL), pos(NULL), lim(NULL),
top(NULL), eof(NULL), tchar(0), tline(0), cline(1) {
;
}
char *Scanner::fill(char *cursor){
if(!eof){
uint cnt = tok - bot;
if(cnt){
memcpy(bot, tok, lim - tok);
tok = bot;
ptr -= cnt;
cursor -= cnt;
pos -= cnt;
lim -= cnt;
}
if((top - lim) < BSIZE){
char *buf = new char[(lim - bot) + BSIZE];
memcpy(buf, tok, lim - tok);
tok = buf;
ptr = &buf[ptr - bot];
cursor = &buf[cursor - bot];
pos = &buf[pos - bot];
lim = &buf[lim - bot];
top = &lim[BSIZE];
delete [] bot;
bot = buf;
}
if((cnt = in.rdbuf()->sgetn((char*) lim, BSIZE)) != BSIZE){
eof = &lim[cnt]; *eof++ = '\n';
}
lim += cnt;
}
return cursor;
}
#line 72 "scanner.re"
int Scanner::echo(std::ostream &out){
char *cursor = cur;
// Catch EOF
if (eof && cursor == eof)
return 0;
tok = cursor;
echo:
#line 7 "scanner.cc"
{
YYCTYPE yych;
unsigned int yyaccept;
goto yy0;
yy1: ++YYCURSOR;
yy0:
if((YYLIMIT - YYCURSOR) < 7) YYFILL(7);
yych = *YYCURSOR;
if(yych == '\n') goto yy4;
if(yych != '/') goto yy6;
goto yy2;
yy2: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych == '*') goto yy7;
goto yy3;
yy3:
#line 91 "scanner.re"
{ goto echo; }
#line 26 "scanner.cc"
yy4: ++YYCURSOR;
goto yy5;
yy5:
#line 87 "scanner.re"
{ if(cursor == eof) RETURN(0);
out.write((const char*)(tok), (const char*)(cursor) - (const char*)(tok));
tok = pos = cursor; cline++;
goto echo; }
#line 35 "scanner.cc"
yy6: yych = *++YYCURSOR;
goto yy3;
yy7: yych = *++YYCURSOR;
if(yych == '!') goto yy9;
goto yy8;
yy8: YYCURSOR = YYMARKER;
switch(yyaccept){
case 0: goto yy3;
}
yy9: yych = *++YYCURSOR;
if(yych != 'r') goto yy8;
goto yy10;
yy10: yych = *++YYCURSOR;
if(yych != 'e') goto yy8;
goto yy11;
yy11: yych = *++YYCURSOR;
if(yych != '2') goto yy8;
goto yy12;
yy12: yych = *++YYCURSOR;
if(yych != 'c') goto yy8;
goto yy13;
yy13: ++YYCURSOR;
goto yy14;
yy14:
#line 84 "scanner.re"
{ out.write((const char*)(tok), (const char*)(&cursor[-7]) - (const char*)(tok));
tok = cursor;
RETURN(1); }
#line 64 "scanner.cc"
}
#line 92 "scanner.re"
}
int Scanner::scan(){
char *cursor = cur;
uint depth;
scan:
tchar = cursor - pos;
tline = cline;
tok = cursor;
#line 68 "scanner.cc"
{
YYCTYPE yych;
unsigned int yyaccept;
goto yy15;
yy16: ++YYCURSOR;
yy15:
if((YYLIMIT - YYCURSOR) < 2) YYFILL(2);
yych = *YYCURSOR;
if(yych <= '/'){
if(yych <= '"'){
if(yych <= '\n'){
if(yych <= '\b') goto yy37;
if(yych <= '\t') goto yy33;
goto yy35;
} else {
if(yych == ' ') goto yy33;
if(yych <= '!') goto yy37;
goto yy23;
}
} else {
if(yych <= ')'){
if(yych <= '&') goto yy37;
if(yych <= '\'') goto yy25;
goto yy29;
} else {
if(yych <= '*') goto yy21;
if(yych <= '+') goto yy30;
if(yych <= '.') goto yy37;
goto yy19;
}
}
} else {
if(yych <= '@'){
if(yych <= '<'){
if(yych == ';') goto yy29;
goto yy37;
} else {
if(yych <= '=') goto yy29;
if(yych == '?') goto yy30;
goto yy37;
}
} else {
if(yych <= '`'){
if(yych <= 'Z') goto yy31;
if(yych <= '[') goto yy27;
if(yych <= '\\') goto yy29;
goto yy37;
} else {
if(yych <= 'z') goto yy31;
if(yych <= '{') goto yy17;
if(yych <= '|') goto yy29;
goto yy37;
}
}
}
yy17: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych <= '/') goto yy18;
if(yych <= '9') goto yy63;
goto yy18;
yy18:
#line 105 "scanner.re"
{ depth = 1;
goto code;
}
#line 134 "scanner.cc"
yy19: ++YYCURSOR;
if((yych = *YYCURSOR) == '*') goto yy61;
goto yy20;
yy20:
#line 131 "scanner.re"
{ RETURN(*tok); }
#line 141 "scanner.cc"
yy21: ++YYCURSOR;
if((yych = *YYCURSOR) == '/') goto yy59;
goto yy22;
yy22:
#line 133 "scanner.re"
{ yylval.op = *tok;
RETURN(CLOSE); }
#line 149 "scanner.cc"
yy23: yyaccept = 1;
yych = *(YYMARKER = ++YYCURSOR);
if(yych != '\n') goto yy55;
goto yy24;
yy24:
#line 122 "scanner.re"
{ fatal("unterminated string constant (missing \")"); }
#line 157 "scanner.cc"
yy25: yyaccept = 2;
yych = *(YYMARKER = ++YYCURSOR);
if(yych != '\n') goto yy50;
goto yy26;
yy26:
#line 123 "scanner.re"
{ fatal("unterminated string constant (missing ')"); }
#line 165 "scanner.cc"
yy27: yyaccept = 3;
yych = *(YYMARKER = ++YYCURSOR);
if(yych != '\n') goto yy44;
goto yy28;
yy28:
#line 129 "scanner.re"
{ fatal("unterminated range (missing ])"); }
#line 173 "scanner.cc"
yy29: yych = *++YYCURSOR;
goto yy20;
yy30: yych = *++YYCURSOR;
goto yy22;
yy31: ++YYCURSOR;
yych = *YYCURSOR;
goto yy42;
yy32:
#line 148 "scanner.re"
{ cur = cursor;
yylval.symbol = Symbol::find(token());
return ID; }
#line 185 "scanner.cc"
yy33: ++YYCURSOR;
yych = *YYCURSOR;
goto yy40;
yy34:
#line 152 "scanner.re"
{ goto scan; }
#line 191 "scanner.cc"
yy35: ++YYCURSOR;
goto yy36;
yy36:
#line 154 "scanner.re"
{ if(cursor == eof) RETURN(0);
pos = cursor; cline++;
goto scan;
}
#line 200 "scanner.cc"
yy37: ++YYCURSOR;
goto yy38;
yy38:
#line 159 "scanner.re"
{ std::cerr << "unexpected character: " << *tok << std::endl;
goto scan;
}
#line 208 "scanner.cc"
yy39: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy40;
yy40: if(yych == '\t') goto yy39;
if(yych == ' ') goto yy39;
goto yy34;
yy41: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy42;
yy42: if(yych <= '@'){
if(yych <= '/') goto yy32;
if(yych <= '9') goto yy41;
goto yy32;
} else {
if(yych <= 'Z') goto yy41;
if(yych <= '`') goto yy32;
if(yych <= 'z') goto yy41;
goto yy32;
}
yy43: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy44;
yy44: if(yych <= '['){
if(yych != '\n') goto yy43;
goto yy45;
} else {
if(yych <= '\\') goto yy46;
if(yych <= ']') goto yy47;
goto yy43;
}
yy45: YYCURSOR = YYMARKER;
switch(yyaccept){
case 0: goto yy18;
case 1: goto yy24;
case 2: goto yy26;
case 3: goto yy28;
}
yy46: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
if(yych == '\n') goto yy45;
goto yy43;
yy47: ++YYCURSOR;
goto yy48;
yy48:
#line 125 "scanner.re"
{ cur = cursor;
yylval.regexp = ranToRE(token());
return RANGE; }
#line 265 "scanner.cc"
yy49: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy50;
yy50: if(yych <= '&'){
if(yych == '\n') goto yy45;
goto yy49;
} else {
if(yych <= '\'') goto yy52;
if(yych != '\\') goto yy49;
goto yy51;
}
yy51: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
if(yych == '\n') goto yy45;
goto yy49;
yy52: ++YYCURSOR;
goto yy53;
yy53:
#line 118 "scanner.re"
{ cur = cursor;
yylval.regexp = strToCaseInsensitiveRE(token());
return STRING; }
#line 292 "scanner.cc"
yy54: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy55;
yy55: if(yych <= '!'){
if(yych == '\n') goto yy45;
goto yy54;
} else {
if(yych <= '"') goto yy57;
if(yych != '\\') goto yy54;
goto yy56;
}
yy56: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
if(yych == '\n') goto yy45;
goto yy54;
yy57: ++YYCURSOR;
goto yy58;
yy58:
#line 114 "scanner.re"
{ cur = cursor;
yylval.regexp = strToRE(token());
return STRING; }
#line 319 "scanner.cc"
yy59: ++YYCURSOR;
goto yy60;
yy60:
#line 111 "scanner.re"
{ tok = cursor;
RETURN(0); }
#line 326 "scanner.cc"
yy61: ++YYCURSOR;
goto yy62;
yy62:
#line 108 "scanner.re"
{ depth = 1;
goto comment; }
#line 333 "scanner.cc"
yy63: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy64;
yy64: if(yych <= '/'){
if(yych == ',') goto yy67;
goto yy45;
} else {
if(yych <= '9') goto yy63;
if(yych != '}') goto yy45;
goto yy65;
}
yy65: ++YYCURSOR;
goto yy66;
yy66:
#line 136 "scanner.re"
{ yylval.extop.minsize = atoi((char *)tok+1);
yylval.extop.maxsize = atoi((char *)tok+1);
RETURN(CLOSESIZE); }
#line 354 "scanner.cc"
yy67: yych = *++YYCURSOR;
if(yych != '}') goto yy71;
goto yy68;
yy68: ++YYCURSOR;
goto yy69;
yy69:
#line 144 "scanner.re"
{ yylval.extop.minsize = atoi((char *)tok+1);
yylval.extop.maxsize = -1;
RETURN(CLOSESIZE); }
#line 365 "scanner.cc"
yy70: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy71;
yy71: if(yych <= '/') goto yy45;
if(yych <= '9') goto yy70;
if(yych != '}') goto yy45;
goto yy72;
yy72: ++YYCURSOR;
goto yy73;
yy73:
#line 140 "scanner.re"
{ yylval.extop.minsize = atoi((char *)tok+1);
yylval.extop.maxsize = MAX(yylval.extop.minsize,atoi(strchr((char *)tok, ',')+1));
RETURN(CLOSESIZE); }
#line 382 "scanner.cc"
}
#line 162 "scanner.re"
code:
#line 386 "scanner.cc"
{
YYCTYPE yych;
unsigned int yyaccept;
goto yy74;
yy75: ++YYCURSOR;
yy74:
if((YYLIMIT - YYCURSOR) < 2) YYFILL(2);
yych = *YYCURSOR;
if(yych <= '&'){
if(yych <= '\n'){
if(yych <= '\t') goto yy82;
goto yy80;
} else {
if(yych == '"') goto yy84;
goto yy82;
}
} else {
if(yych <= '{'){
if(yych <= '\'') goto yy85;
if(yych <= 'z') goto yy82;
goto yy78;
} else {
if(yych != '}') goto yy82;
goto yy76;
}
}
yy76: ++YYCURSOR;
goto yy77;
yy77:
#line 166 "scanner.re"
{ if(--depth == 0){
cur = cursor;
yylval.token = new Token(token(), tline);
return CODE;
}
goto code; }
#line 423 "scanner.cc"
yy78: ++YYCURSOR;
goto yy79;
yy79:
#line 172 "scanner.re"
{ ++depth;
goto code; }
#line 430 "scanner.cc"
yy80: ++YYCURSOR;
goto yy81;
yy81:
#line 174 "scanner.re"
{ if(cursor == eof) fatal("missing '}'");
pos = cursor; cline++;
goto code;
}
#line 439 "scanner.cc"
yy82: ++YYCURSOR;
goto yy83;
yy83:
#line 178 "scanner.re"
{ goto code; }
#line 445 "scanner.cc"
yy84: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych == '\n') goto yy83;
goto yy91;
yy85: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych == '\n') goto yy83;
goto yy87;
yy86: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy87;
yy87: if(yych <= '&'){
if(yych != '\n') goto yy86;
goto yy88;
} else {
if(yych <= '\'') goto yy82;
if(yych == '\\') goto yy89;
goto yy86;
}
yy88: YYCURSOR = YYMARKER;
switch(yyaccept){
case 0: goto yy83;
}
yy89: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
if(yych == '\n') goto yy88;
goto yy86;
yy90: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
goto yy91;
yy91: if(yych <= '!'){
if(yych == '\n') goto yy88;
goto yy90;
} else {
if(yych <= '"') goto yy82;
if(yych != '\\') goto yy90;
goto yy92;
}
yy92: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
if(yych == '\n') goto yy88;
goto yy90;
}
#line 179 "scanner.re"
comment:
#line 499 "scanner.cc"
{
YYCTYPE yych;
unsigned int yyaccept;
goto yy93;
yy94: ++YYCURSOR;
yy93:
if((YYLIMIT - YYCURSOR) < 2) YYFILL(2);
yych = *YYCURSOR;
if(yych <= ')'){
if(yych == '\n') goto yy98;
goto yy100;
} else {
if(yych <= '*') goto yy95;
if(yych == '/') goto yy97;
goto yy100;
}
yy95: ++YYCURSOR;
if((yych = *YYCURSOR) == '/') goto yy103;
goto yy96;
yy96:
#line 193 "scanner.re"
{ goto comment; }
#line 522 "scanner.cc"
yy97: yych = *++YYCURSOR;
if(yych == '*') goto yy101;
goto yy96;
yy98: ++YYCURSOR;
goto yy99;
yy99:
#line 189 "scanner.re"
{ if(cursor == eof) RETURN(0);
tok = pos = cursor; cline++;
goto comment;
}
#line 534 "scanner.cc"
yy100: yych = *++YYCURSOR;
goto yy96;
yy101: ++YYCURSOR;
goto yy102;
yy102:
#line 187 "scanner.re"
{ ++depth;
goto comment; }
#line 543 "scanner.cc"
yy103: ++YYCURSOR;
goto yy104;
yy104:
#line 183 "scanner.re"
{ if(--depth == 0)
goto scan;
else
goto comment; }
#line 552 "scanner.cc"
}
#line 194 "scanner.re"
}
void Scanner::fatal(char *msg){
std::cerr << "line " << tline << ", column " << (tchar + 1) << ": "
<< msg << std::endl;
exit(1);
}
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