package scanner import ( "bufio" "bytes" "go/token" "io" "unicode" "github.com/cznic/golex/lex" "github.com/z7zmey/php-parser/comment" t "github.com/z7zmey/php-parser/token" ) // Allocate Character classes anywhere in [0x80, 0xFF]. const ( classUnicodeLeter = iota + 0x80 classUnicodeDigit classUnicodeGraphic classOther ) const T_INCLUDE = 57346 const T_INCLUDE_ONCE = 57347 const T_EXIT = 57348 const T_IF = 57349 const T_LNUMBER = 57350 const T_DNUMBER = 57351 const T_STRING = 57352 const T_STRING_VARNAME = 57353 const T_VARIABLE = 57354 const T_NUM_STRING = 57355 const T_INLINE_HTML = 57356 const T_CHARACTER = 57357 const T_BAD_CHARACTER = 57358 const T_ENCAPSED_AND_WHITESPACE = 57359 const T_CONSTANT_ENCAPSED_STRING = 57360 const T_ECHO = 57361 const T_DO = 57362 const T_WHILE = 57363 const T_ENDWHILE = 57364 const T_FOR = 57365 const T_ENDFOR = 57366 const T_FOREACH = 57367 const T_ENDFOREACH = 57368 const T_DECLARE = 57369 const T_ENDDECLARE = 57370 const T_AS = 57371 const T_SWITCH = 57372 const T_ENDSWITCH = 57373 const T_CASE = 57374 const T_DEFAULT = 57375 const T_BREAK = 57376 const T_CONTINUE = 57377 const T_GOTO = 57378 const T_FUNCTION = 57379 const T_CONST = 57380 const T_RETURN = 57381 const T_TRY = 57382 const T_CATCH = 57383 const T_FINALLY = 57384 const T_THROW = 57385 const T_USE = 57386 const T_INSTEADOF = 57387 const T_GLOBAL = 57388 const T_VAR = 57389 const T_UNSET = 57390 const T_ISSET = 57391 const T_EMPTY = 57392 const T_HALT_COMPILER = 57393 const T_CLASS = 57394 const T_TRAIT = 57395 const T_INTERFACE = 57396 const T_EXTENDS = 57397 const T_IMPLEMENTS = 57398 const T_OBJECT_OPERATOR = 57399 const T_DOUBLE_ARROW = 57400 const T_LIST = 57401 const T_ARRAY = 57402 const T_CALLABLE = 57403 const T_CLASS_C = 57404 const T_TRAIT_C = 57405 const T_METHOD_C = 57406 const T_FUNC_C = 57407 const T_LINE = 57408 const T_FILE = 57409 const T_COMMENT = 57410 const T_DOC_COMMENT = 57411 const T_OPEN_TAG = 57412 const T_OPEN_TAG_WITH_ECHO = 57413 const T_CLOSE_TAG = 57414 const T_WHITESPACE = 57415 const T_START_HEREDOC = 57416 const T_END_HEREDOC = 57417 const T_DOLLAR_OPEN_CURLY_BRACES = 57418 const T_CURLY_OPEN = 57419 const T_PAAMAYIM_NEKUDOTAYIM = 57420 const T_NAMESPACE = 57421 const T_NS_C = 57422 const T_DIR = 57423 const T_NS_SEPARATOR = 57424 const T_ELLIPSIS = 57425 const T_EVAL = 57426 const T_REQUIRE = 57427 const T_REQUIRE_ONCE = 57428 const T_LOGICAL_OR = 57429 const T_LOGICAL_XOR = 57430 const T_LOGICAL_AND = 57431 const T_INSTANCEOF = 57432 const T_NEW = 57433 const T_CLONE = 57434 const T_ELSEIF = 57435 const T_ELSE = 57436 const T_ENDIF = 57437 const T_PRINT = 57438 const T_YIELD = 57439 const T_STATIC = 57440 const T_ABSTRACT = 57441 const T_FINAL = 57442 const T_PRIVATE = 57443 const T_PROTECTED = 57444 const T_PUBLIC = 57445 const T_INC = 57446 const T_DEC = 57447 const T_YIELD_FROM = 57448 const T_INT_CAST = 57449 const T_DOUBLE_CAST = 57450 const T_STRING_CAST = 57451 const T_ARRAY_CAST = 57452 const T_OBJECT_CAST = 57453 const T_BOOL_CAST = 57454 const T_UNSET_CAST = 57455 const T_COALESCE = 57456 const T_SPACESHIP = 57457 const T_NOELSE = 57458 const T_PLUS_EQUAL = 57459 const T_MINUS_EQUAL = 57460 const T_MUL_EQUAL = 57461 const T_DIV_EQUAL = 57462 const T_CONCAT_EQUAL = 57463 const T_MOD_EQUAL = 57464 const T_AND_EQUAL = 57465 const T_OR_EQUAL = 57466 const T_XOR_EQUAL = 57467 const T_SL_EQUAL = 57468 const T_SR_EQUAL = 57469 const T_POW_EQUAL = 57470 const T_BOOLEAN_OR = 57471 const T_BOOLEAN_AND = 57472 const T_IS_EQUAL = 57473 const T_IS_NOT_EQUAL = 57474 const T_IS_IDENTICAL = 57475 const T_IS_NOT_IDENTICAL = 57476 const T_IS_SMALLER_OR_EQUAL = 57477 const T_IS_GREATER_OR_EQUAL = 57478 const T_SL = 57479 const T_SR = 57480 const T_POW = 57481 type Lval interface { Token(tkn t.Token) } type Lexer struct { *lex.Lexer StateStack []int PhpDocComment string Comments []comment.Comment } func Rune2Class(r rune) int { if r >= 0 && r < 0x80 { // Keep ASCII as it is. return int(r) } if unicode.IsLetter(r) { return classUnicodeLeter } if unicode.IsDigit(r) { return classUnicodeDigit } if unicode.IsGraphic(r) { return classUnicodeGraphic } // return classOther return -1 } func NewLexer(src io.Reader, fName string) *Lexer { file := token.NewFileSet().AddFile(fName, -1, 1<<31-1) lx, err := lex.New(file, bufio.NewReader(src), lex.RuneClass(Rune2Class)) if err != nil { panic(err) } return &Lexer{lx, []int{0}, "", nil} } func (l *Lexer) ungetChars(n int) []lex.Char { l.Unget(l.Lookahead()) chars := l.Token() for i := 1; i <= n; i++ { char := chars[len(chars)-i] l.Unget(char) } buf := l.Token() buf = buf[:len(buf)-n] return buf } func (l *Lexer) pushState(state int) { l.StateStack = append(l.StateStack, state) } func (l *Lexer) popState() { len := len(l.StateStack) if len <= 1 { return } l.StateStack = l.StateStack[:len-1] } func (l *Lexer) begin(state int) { len := len(l.StateStack) l.StateStack = l.StateStack[:len-1] l.StateStack = append(l.StateStack, state) } func (l *Lexer) getCurrentState() int { return l.StateStack[len(l.StateStack)-1] } func (l *Lexer) newToken(chars []lex.Char) t.Token { firstChar := chars[0] lastChar := chars[len(chars)-1] startLine := l.File.Line(firstChar.Pos()) endLine := l.File.Line(lastChar.Pos()) startPos := int(firstChar.Pos()) endPos := int(lastChar.Pos()) return t.NewToken(l.charsToBytes(chars), startLine, endLine, startPos, endPos).SetComments(l.Comments) } func (l *Lexer) addComment(c comment.Comment) { l.Comments = append(l.Comments, c) } func (l *Lexer) charsToBytes(chars []lex.Char) []byte { bytesBuf := bytes.Buffer{} for _, c := range chars { bytesBuf.WriteRune(c.Rune) } return bytesBuf.Bytes() }