void Get () { for (;;) { t = la; la = scanner.Scan(); if (la.kind <= maxT) { ++errDist; break; } la = t; } }
// make sure that peeking starts at the current scan position public void ResetPeek () { pt = tokens; }
// peek for the next token, ignore pragmas public Token Peek () { do { if (pt.next == null) { pt.next = NextToken(); } pt = pt.next; } while (pt.kind > maxT); // skip pragmas return pt; }
// get the next token (possibly a token already seen during peeking) public Token Scan () { if (tokens.next == null) { return NextToken(); } else { pt = tokens = tokens.next; return tokens; } }
Token NextToken() { while (ch == ' ' || ch >= 9 && ch <= 10 || ch == 13 || ch == 160 || ch == 173 ) NextCh(); if (ch == '/' && Comment0() ||ch == '/' && Comment1()) return NextToken(); int recKind = noSym; int recEnd = pos; t = new Token(); t.pos = pos; t.col = col; t.line = line; t.origin = origin; int state; start.TryGetValue(ch, out state); tlen = 0; AddCh(); switch (state) { case -1: { t.kind = eofSym; break; } // NextCh already done case 0: { if (recKind != noSym) { tlen = recEnd - t.pos; SetScannerBehindT(); } t.kind = recKind; break; } // NextCh already done case 1: recEnd = pos; recKind = 1; if (ch >= '0' && ch <= '9' || ch == '_' || ch >= 'a' && ch <= 'z') {AddCh(); goto case 1;} else {t.kind = 1; t.val = new String(tval, 0, tlen); CheckLiteral(); return t;} case 2: recEnd = pos; recKind = 1; if (ch >= '0' && ch <= '9' || ch == '_' || ch >= 'a' && ch <= 'z') {AddCh(); goto case 2;} else {t.kind = 1; t.val = new String(tval, 0, tlen); CheckLiteral(); return t;} case 3: recEnd = pos; recKind = 1; if (ch >= '0' && ch <= '9') {AddCh(); goto case 3;} else {t.kind = 1; t.val = new String(tval, 0, tlen); CheckLiteral(); return t;} case 4: recEnd = pos; recKind = 1; if (ch >= '0' && ch <= '9' || ch == '_' || ch >= 'a' && ch <= 'z') {AddCh(); goto case 4;} else {t.kind = 1; t.val = new String(tval, 0, tlen); CheckLiteral(); return t;} case 5: if (ch >= 'a' && ch <= 'z') {AddCh(); goto case 6;} else {goto case 0;} case 6: recEnd = pos; recKind = 2; if (ch >= '0' && ch <= '9' || ch == '_' || ch >= 'a' && ch <= 'z') {AddCh(); goto case 6;} else {t.kind = 2; break;} case 7: if (ch <= '!' || ch >= '#' && ch <= 65535) {AddCh(); goto case 7;} else if (ch == '"') {AddCh(); goto case 37;} else {goto case 0;} case 8: if (ch <= '&' || ch >= '(' && ch <= 65535) {AddCh(); goto case 8;} else if (ch == 39) {AddCh(); goto case 38;} else {goto case 0;} case 9: if (ch <= '!' || ch >= '#' && ch <= '[' || ch >= ']' && ch <= 65535) {AddCh(); goto case 9;} else if (ch == '"') {AddCh(); goto case 11;} else if (ch == 92) {AddCh(); goto case 39;} else {goto case 0;} case 10: if (ch <= '&' || ch >= '(' && ch <= '[' || ch >= ']' && ch <= 65535) {AddCh(); goto case 10;} else if (ch == 39) {AddCh(); goto case 11;} else if (ch == 92) {AddCh(); goto case 40;} else {goto case 0;} case 11: {t.kind = 4; break;} case 12: recEnd = pos; recKind = 5; if (ch >= '0' && ch <= '9') {AddCh(); goto case 12;} else if (ch == 'e') {AddCh(); goto case 13;} else {t.kind = 5; break;} case 13: if (ch >= '0' && ch <= '9') {AddCh(); goto case 15;} else if (ch == '+' || ch == '-') {AddCh(); goto case 14;} else {goto case 0;} case 14: if (ch >= '0' && ch <= '9') {AddCh(); goto case 15;} else {goto case 0;} case 15: recEnd = pos; recKind = 5; if (ch >= '0' && ch <= '9') {AddCh(); goto case 15;} else {t.kind = 5; break;} case 16: if (ch >= '0' && ch <= '9') {AddCh(); goto case 17;} else {goto case 0;} case 17: recEnd = pos; recKind = 5; if (ch >= '0' && ch <= '9') {AddCh(); goto case 17;} else if (ch == 'e') {AddCh(); goto case 18;} else {t.kind = 5; break;} case 18: if (ch >= '0' && ch <= '9') {AddCh(); goto case 20;} else if (ch == '+' || ch == '-') {AddCh(); goto case 19;} else {goto case 0;} case 19: if (ch >= '0' && ch <= '9') {AddCh(); goto case 20;} else {goto case 0;} case 20: recEnd = pos; recKind = 5; if (ch >= '0' && ch <= '9') {AddCh(); goto case 20;} else {t.kind = 5; break;} case 21: if (ch >= '0' && ch <= '9') {AddCh(); goto case 23;} else if (ch == '+' || ch == '-') {AddCh(); goto case 22;} else {goto case 0;} case 22: if (ch >= '0' && ch <= '9') {AddCh(); goto case 23;} else {goto case 0;} case 23: recEnd = pos; recKind = 5; if (ch >= '0' && ch <= '9') {AddCh(); goto case 23;} else {t.kind = 5; break;} case 24: if (ch >= '0' && ch <= '9' || ch >= 'a' && ch <= 'f') {AddCh(); goto case 25;} else {goto case 0;} case 25: recEnd = pos; recKind = 6; if (ch >= '0' && ch <= '9' || ch >= 'a' && ch <= 'f') {AddCh(); goto case 25;} else {t.kind = 6; break;} case 26: if (ch >= '0' && ch <= '9' || ch >= 'a' && ch <= 'z') {AddCh(); goto case 26;} else if (ch == ';') {AddCh(); goto case 31;} else {goto case 0;} case 27: if (ch >= '0' && ch <= '9') {AddCh(); goto case 28;} else if (ch == 'x') {AddCh(); goto case 29;} else {goto case 0;} case 28: if (ch >= '0' && ch <= '9') {AddCh(); goto case 28;} else if (ch == ';') {AddCh(); goto case 31;} else {goto case 0;} case 29: if (ch >= '0' && ch <= '9' || ch >= 'a' && ch <= 'f') {AddCh(); goto case 30;} else {goto case 0;} case 30: if (ch >= '0' && ch <= '9' || ch >= 'a' && ch <= 'f') {AddCh(); goto case 30;} else if (ch == ';') {AddCh(); goto case 31;} else {goto case 0;} case 31: {t.kind = 7; break;} case 32: recEnd = pos; recKind = 5; if (ch >= '0' && ch <= '9') {AddCh(); goto case 32;} else if (ch == '.') {AddCh(); goto case 16;} else if (ch == 'e') {AddCh(); goto case 21;} else {t.kind = 5; break;} case 33: recEnd = pos; recKind = 1; if (ch >= '0' && ch <= '9') {AddCh(); goto case 3;} else if (ch >= 'a' && ch <= 'z') {AddCh(); goto case 4;} else {t.kind = 1; t.val = new String(tval, 0, tlen); CheckLiteral(); return t;} case 34: if (ch <= '!' || ch >= '#' && ch <= '[' || ch >= ']' && ch <= 65535) {AddCh(); goto case 9;} else if (ch == '"') {AddCh(); goto case 41;} else if (ch == 92) {AddCh(); goto case 39;} else {goto case 0;} case 35: if (ch <= '&' || ch >= '(' && ch <= '[' || ch >= ']' && ch <= 65535) {AddCh(); goto case 10;} else if (ch == 39) {AddCh(); goto case 42;} else if (ch == 92) {AddCh(); goto case 40;} else {goto case 0;} case 36: recEnd = pos; recKind = 5; if (ch >= '0' && ch <= '9') {AddCh(); goto case 32;} else if (ch == '.') {AddCh(); goto case 16;} else if (ch == 'e') {AddCh(); goto case 21;} else if (ch == 'x') {AddCh(); goto case 24;} else {t.kind = 5; break;} case 37: if (ch <= '!' || ch >= '#' && ch <= 65535) {AddCh(); goto case 7;} else if (ch == '"') {AddCh(); goto case 43;} else {goto case 0;} case 38: if (ch <= '&' || ch >= '(' && ch <= 65535) {AddCh(); goto case 8;} else if (ch == 39) {AddCh(); goto case 44;} else {goto case 0;} case 39: if (ch <= '!' || ch >= '#' && ch <= '[' || ch >= ']' && ch <= 65535) {AddCh(); goto case 9;} else if (ch == '"') {AddCh(); goto case 45;} else if (ch == 92) {AddCh(); goto case 39;} else {goto case 0;} case 40: if (ch <= '&' || ch >= '(' && ch <= '[' || ch >= ']' && ch <= 65535) {AddCh(); goto case 10;} else if (ch == 39) {AddCh(); goto case 46;} else if (ch == 92) {AddCh(); goto case 40;} else {goto case 0;} case 41: recEnd = pos; recKind = 4; if (ch == '"') {AddCh(); goto case 7;} else {t.kind = 4; break;} case 42: recEnd = pos; recKind = 4; if (ch == 39) {AddCh(); goto case 8;} else {t.kind = 4; break;} case 43: if (ch <= '!' || ch >= '#' && ch <= 65535) {AddCh(); goto case 7;} else if (ch == '"') {AddCh(); goto case 47;} else {goto case 0;} case 44: if (ch <= '&' || ch >= '(' && ch <= 65535) {AddCh(); goto case 8;} else if (ch == 39) {AddCh(); goto case 48;} else {goto case 0;} case 45: recEnd = pos; recKind = 4; if (ch <= '!' || ch >= '#' && ch <= '[' || ch >= ']' && ch <= 65535) {AddCh(); goto case 9;} else if (ch == '"') {AddCh(); goto case 11;} else if (ch == 92) {AddCh(); goto case 39;} else {t.kind = 4; break;} case 46: recEnd = pos; recKind = 4; if (ch <= '&' || ch >= '(' && ch <= '[' || ch >= ']' && ch <= 65535) {AddCh(); goto case 10;} else if (ch == 39) {AddCh(); goto case 11;} else if (ch == 92) {AddCh(); goto case 40;} else {t.kind = 4; break;} case 47: recEnd = pos; recKind = 3; if (ch <= '!' || ch >= '#' && ch <= 65535) {AddCh(); goto case 7;} else if (ch == '"') {AddCh(); goto case 47;} else {t.kind = 3; break;} case 48: recEnd = pos; recKind = 3; if (ch <= '&' || ch >= '(' && ch <= 65535) {AddCh(); goto case 8;} else if (ch == 39) {AddCh(); goto case 48;} else {t.kind = 3; break;} case 49: {t.kind = 8; break;} case 50: {t.kind = 9; break;} case 51: {t.kind = 10; break;} case 52: {t.kind = 13; break;} case 53: {t.kind = 14; break;} case 54: {t.kind = 15; break;} case 55: {t.kind = 16; break;} case 56: {t.kind = 17; break;} case 57: {t.kind = 18; break;} case 58: {t.kind = 20; break;} case 59: {t.kind = 22; break;} case 60: {t.kind = 23; break;} case 61: {t.kind = 31; break;} case 62: {t.kind = 36; break;} case 63: {t.kind = 38; break;} case 64: if (ch == '|') {AddCh(); goto case 65;} else {goto case 0;} case 65: {t.kind = 39; break;} case 66: {t.kind = 40; break;} case 67: {t.kind = 43; break;} case 68: {t.kind = 44; break;} case 69: {t.kind = 47; break;} case 70: {t.kind = 48; break;} case 71: {t.kind = 62; break;} case 72: {t.kind = 64; break;} case 73: {t.kind = 65; break;} case 74: {t.kind = 72; break;} case 75: {t.kind = 73; break;} case 76: recEnd = pos; recKind = 66; if (ch >= '0' && ch <= '9' || ch == '_' || ch >= 'a' && ch <= 'z') {AddCh(); goto case 2;} else {t.kind = 66; break;} case 77: recEnd = pos; recKind = 63; if (ch >= '0' && ch <= '9') {AddCh(); goto case 12;} else if (ch == '.') {AddCh(); goto case 89;} else {t.kind = 63; break;} case 78: recEnd = pos; recKind = 54; if (ch >= 'a' && ch <= 'z') {AddCh(); goto case 26;} else if (ch == '#') {AddCh(); goto case 27;} else if (ch == '&') {AddCh(); goto case 66;} else {t.kind = 54; break;} case 79: recEnd = pos; recKind = 12; if (ch == '=') {AddCh(); goto case 90;} else {t.kind = 12; break;} case 80: recEnd = pos; recKind = 55; if (ch == '=') {AddCh(); goto case 52;} else {t.kind = 55; break;} case 81: recEnd = pos; recKind = 56; if (ch == '=') {AddCh(); goto case 53;} else {t.kind = 56; break;} case 82: recEnd = pos; recKind = 57; if (ch == '=') {AddCh(); goto case 54;} else {t.kind = 57; break;} case 83: recEnd = pos; recKind = 58; if (ch == '=') {AddCh(); goto case 55;} else if (ch == '>') {AddCh(); goto case 75;} else {t.kind = 58; break;} case 84: recEnd = pos; recKind = 59; if (ch == '=') {AddCh(); goto case 56;} else {t.kind = 59; break;} case 85: recEnd = pos; recKind = 60; if (ch == '!') {AddCh(); goto case 62;} else if (ch == '=') {AddCh(); goto case 91;} else {t.kind = 60; break;} case 86: recEnd = pos; recKind = 37; if (ch == '?') {AddCh(); goto case 63;} else {t.kind = 37; break;} case 87: recEnd = pos; recKind = 45; if (ch == '=') {AddCh(); goto case 69;} else if (ch == '/') {AddCh(); goto case 92;} else {t.kind = 45; break;} case 88: recEnd = pos; recKind = 46; if (ch == '=') {AddCh(); goto case 70;} else {t.kind = 46; break;} case 89: recEnd = pos; recKind = 53; if (ch == '=') {AddCh(); goto case 57;} else {t.kind = 53; break;} case 90: recEnd = pos; recKind = 42; if (ch == '=') {AddCh(); goto case 68;} else {t.kind = 42; break;} case 91: recEnd = pos; recKind = 41; if (ch == '=') {AddCh(); goto case 67;} else {t.kind = 41; break;} case 92: recEnd = pos; recKind = 71; if (ch == '>') {AddCh(); goto case 74;} else {t.kind = 71; break;} } t.val = new String(tval, 0, tlen); return t; }
void Init(string o, int l, int c) { pos = -1; line = l; col = c; origin = o; oldEols = 0; // NOTE: always use UTF-8 decoding buffer = new UTF8Buffer(buffer); NextCh(); pt = tokens = new Token(); // first token is a dummy }
public void Parse() { la = new Token(); la.val = ""; Get(); DekiScript(); Expect(0); }