2621 lines
59 KiB
C++
2621 lines
59 KiB
C++
// lex.cc -- Go frontend lexer.
|
|
|
|
// Copyright 2009 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
#include "go-system.h"
|
|
|
|
#include "lex.h"
|
|
|
|
// Manage mapping from keywords to the Keyword codes.
|
|
|
|
class Keywords
|
|
{
|
|
public:
|
|
// The structure which maps keywords to codes.
|
|
struct Mapping
|
|
{
|
|
// Keyword string.
|
|
const char* keystring;
|
|
// Keyword code.
|
|
Keyword keycode;
|
|
};
|
|
|
|
// Return the parsecode corresponding to KEYSTRING, or
|
|
// KEYWORD_INVALID if it is not a keyword.
|
|
Keyword
|
|
keyword_to_code(const char* keyword, size_t len) const;
|
|
|
|
// Return the string for a keyword.
|
|
const char*
|
|
keyword_to_string(Keyword) const;
|
|
|
|
private:
|
|
static const Mapping mapping_[];
|
|
static const int count_;
|
|
};
|
|
|
|
// Mapping from keyword string to keyword code. This array must be
|
|
// kept in sorted order, and the order must match the Keyword enum.
|
|
// Strings are looked up using bsearch.
|
|
|
|
const Keywords::Mapping
|
|
Keywords::mapping_[] =
|
|
{
|
|
{ NULL, KEYWORD_INVALID },
|
|
{ "__asm__", KEYWORD_ASM },
|
|
{ "break", KEYWORD_BREAK },
|
|
{ "case", KEYWORD_CASE },
|
|
{ "chan", KEYWORD_CHAN },
|
|
{ "const", KEYWORD_CONST },
|
|
{ "continue", KEYWORD_CONTINUE },
|
|
{ "default", KEYWORD_DEFAULT },
|
|
{ "defer", KEYWORD_DEFER },
|
|
{ "else", KEYWORD_ELSE },
|
|
{ "fallthrough", KEYWORD_FALLTHROUGH },
|
|
{ "for", KEYWORD_FOR },
|
|
{ "func", KEYWORD_FUNC },
|
|
{ "go", KEYWORD_GO },
|
|
{ "goto", KEYWORD_GOTO },
|
|
{ "if", KEYWORD_IF },
|
|
{ "import", KEYWORD_IMPORT },
|
|
{ "interface", KEYWORD_INTERFACE },
|
|
{ "map", KEYWORD_MAP },
|
|
{ "package", KEYWORD_PACKAGE },
|
|
{ "range", KEYWORD_RANGE },
|
|
{ "return", KEYWORD_RETURN },
|
|
{ "select", KEYWORD_SELECT },
|
|
{ "struct", KEYWORD_STRUCT },
|
|
{ "switch", KEYWORD_SWITCH },
|
|
{ "type", KEYWORD_TYPE },
|
|
{ "var", KEYWORD_VAR }
|
|
};
|
|
|
|
// Number of entries in the map.
|
|
|
|
const int Keywords::count_ =
|
|
sizeof(Keywords::mapping_) / sizeof(Keywords::mapping_[0]);
|
|
|
|
// Comparison function passed to bsearch.
|
|
|
|
extern "C"
|
|
{
|
|
|
|
struct Keywords_search_key
|
|
{
|
|
const char* str;
|
|
size_t len;
|
|
};
|
|
|
|
static int
|
|
keyword_compare(const void* keyv, const void* mapv)
|
|
{
|
|
const Keywords_search_key* key =
|
|
static_cast<const Keywords_search_key*>(keyv);
|
|
const Keywords::Mapping* map =
|
|
static_cast<const Keywords::Mapping*>(mapv);
|
|
if (map->keystring == NULL)
|
|
return 1;
|
|
int i = strncmp(key->str, map->keystring, key->len);
|
|
if (i != 0)
|
|
return i;
|
|
if (map->keystring[key->len] != '\0')
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
} // End extern "C".
|
|
|
|
// Convert a string to a keyword code. Return KEYWORD_INVALID if the
|
|
// string is not a keyword.
|
|
|
|
Keyword
|
|
Keywords::keyword_to_code(const char* keyword, size_t len) const
|
|
{
|
|
Keywords_search_key key;
|
|
key.str = keyword;
|
|
key.len = len;
|
|
void* mapv = bsearch(&key,
|
|
this->mapping_,
|
|
this->count_,
|
|
sizeof(this->mapping_[0]),
|
|
keyword_compare);
|
|
if (mapv == NULL)
|
|
return KEYWORD_INVALID;
|
|
Mapping* map = static_cast<Mapping*>(mapv);
|
|
return map->keycode;
|
|
}
|
|
|
|
// Convert a keyword code to a string.
|
|
|
|
const char*
|
|
Keywords::keyword_to_string(Keyword code) const
|
|
{
|
|
go_assert(code > KEYWORD_INVALID && code < this->count_);
|
|
const Mapping* map = &this->mapping_[code];
|
|
go_assert(map->keycode == code);
|
|
return map->keystring;
|
|
}
|
|
|
|
// There is one instance of the Keywords class.
|
|
|
|
static Keywords keywords;
|
|
|
|
// Class Token.
|
|
|
|
// Make a general token.
|
|
|
|
Token::Token(Classification classification, Location location)
|
|
: classification_(classification), location_(location)
|
|
{
|
|
}
|
|
|
|
// Destroy a token.
|
|
|
|
Token::~Token()
|
|
{
|
|
this->clear();
|
|
}
|
|
|
|
// Clear a token--release memory.
|
|
|
|
void
|
|
Token::clear()
|
|
{
|
|
if (this->classification_ == TOKEN_INTEGER
|
|
|| this->classification_ == TOKEN_CHARACTER)
|
|
mpz_clear(this->u_.integer_value);
|
|
else if (this->classification_ == TOKEN_FLOAT
|
|
|| this->classification_ == TOKEN_IMAGINARY)
|
|
mpfr_clear(this->u_.float_value);
|
|
}
|
|
|
|
// Construct a token.
|
|
|
|
Token::Token(const Token& tok)
|
|
: classification_(tok.classification_), location_(tok.location_)
|
|
{
|
|
switch (this->classification_)
|
|
{
|
|
case TOKEN_INVALID:
|
|
case TOKEN_EOF:
|
|
break;
|
|
case TOKEN_KEYWORD:
|
|
this->u_.keyword = tok.u_.keyword;
|
|
break;
|
|
case TOKEN_IDENTIFIER:
|
|
case TOKEN_STRING:
|
|
this->u_.string_value = tok.u_.string_value;
|
|
break;
|
|
case TOKEN_OPERATOR:
|
|
this->u_.op = tok.u_.op;
|
|
break;
|
|
case TOKEN_CHARACTER:
|
|
case TOKEN_INTEGER:
|
|
mpz_init_set(this->u_.integer_value, tok.u_.integer_value);
|
|
break;
|
|
case TOKEN_FLOAT:
|
|
case TOKEN_IMAGINARY:
|
|
mpfr_init_set(this->u_.float_value, tok.u_.float_value, GMP_RNDN);
|
|
break;
|
|
default:
|
|
go_unreachable();
|
|
}
|
|
}
|
|
|
|
// Assign to a token.
|
|
|
|
Token&
|
|
Token::operator=(const Token& tok)
|
|
{
|
|
this->clear();
|
|
this->classification_ = tok.classification_;
|
|
this->location_ = tok.location_;
|
|
switch (tok.classification_)
|
|
{
|
|
case TOKEN_INVALID:
|
|
case TOKEN_EOF:
|
|
break;
|
|
case TOKEN_KEYWORD:
|
|
this->u_.keyword = tok.u_.keyword;
|
|
break;
|
|
case TOKEN_IDENTIFIER:
|
|
this->u_.identifier_value.name = tok.u_.identifier_value.name;
|
|
this->u_.identifier_value.is_exported =
|
|
tok.u_.identifier_value.is_exported;
|
|
break;
|
|
case TOKEN_STRING:
|
|
this->u_.string_value = tok.u_.string_value;
|
|
break;
|
|
case TOKEN_OPERATOR:
|
|
this->u_.op = tok.u_.op;
|
|
break;
|
|
case TOKEN_CHARACTER:
|
|
case TOKEN_INTEGER:
|
|
mpz_init_set(this->u_.integer_value, tok.u_.integer_value);
|
|
break;
|
|
case TOKEN_FLOAT:
|
|
case TOKEN_IMAGINARY:
|
|
mpfr_init_set(this->u_.float_value, tok.u_.float_value, GMP_RNDN);
|
|
break;
|
|
default:
|
|
go_unreachable();
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
// Print the token for debugging.
|
|
|
|
void
|
|
Token::print(FILE* file) const
|
|
{
|
|
switch (this->classification_)
|
|
{
|
|
case TOKEN_INVALID:
|
|
fprintf(file, "invalid");
|
|
break;
|
|
case TOKEN_EOF:
|
|
fprintf(file, "EOF");
|
|
break;
|
|
case TOKEN_KEYWORD:
|
|
fprintf(file, "keyword %s", keywords.keyword_to_string(this->u_.keyword));
|
|
break;
|
|
case TOKEN_IDENTIFIER:
|
|
fprintf(file, "identifier \"%s\"", this->u_.string_value->c_str());
|
|
break;
|
|
case TOKEN_STRING:
|
|
fprintf(file, "quoted string \"%s\"", this->u_.string_value->c_str());
|
|
break;
|
|
case TOKEN_CHARACTER:
|
|
fprintf(file, "character ");
|
|
mpz_out_str(file, 10, this->u_.integer_value);
|
|
break;
|
|
case TOKEN_INTEGER:
|
|
fprintf(file, "integer ");
|
|
mpz_out_str(file, 10, this->u_.integer_value);
|
|
break;
|
|
case TOKEN_FLOAT:
|
|
fprintf(file, "float ");
|
|
mpfr_out_str(file, 10, 0, this->u_.float_value, GMP_RNDN);
|
|
break;
|
|
case TOKEN_IMAGINARY:
|
|
fprintf(file, "imaginary ");
|
|
mpfr_out_str(file, 10, 0, this->u_.float_value, GMP_RNDN);
|
|
break;
|
|
case TOKEN_OPERATOR:
|
|
fprintf(file, "operator ");
|
|
switch (this->u_.op)
|
|
{
|
|
case OPERATOR_INVALID:
|
|
fprintf(file, "invalid");
|
|
break;
|
|
case OPERATOR_OROR:
|
|
fprintf(file, "||");
|
|
break;
|
|
case OPERATOR_ANDAND:
|
|
fprintf(file, "&&");
|
|
break;
|
|
case OPERATOR_EQEQ:
|
|
fprintf(file, "==");
|
|
break;
|
|
case OPERATOR_NOTEQ:
|
|
fprintf(file, "!=");
|
|
break;
|
|
case OPERATOR_LT:
|
|
fprintf(file, "<");
|
|
break;
|
|
case OPERATOR_LE:
|
|
fprintf(file, "<=");
|
|
break;
|
|
case OPERATOR_GT:
|
|
fprintf(file, ">");
|
|
break;
|
|
case OPERATOR_GE:
|
|
fprintf(file, ">=");
|
|
break;
|
|
case OPERATOR_PLUS:
|
|
fprintf(file, "+");
|
|
break;
|
|
case OPERATOR_MINUS:
|
|
fprintf(file, "-");
|
|
break;
|
|
case OPERATOR_OR:
|
|
fprintf(file, "|");
|
|
break;
|
|
case OPERATOR_XOR:
|
|
fprintf(file, "^");
|
|
break;
|
|
case OPERATOR_MULT:
|
|
fprintf(file, "*");
|
|
break;
|
|
case OPERATOR_DIV:
|
|
fprintf(file, "/");
|
|
break;
|
|
case OPERATOR_MOD:
|
|
fprintf(file, "%%");
|
|
break;
|
|
case OPERATOR_LSHIFT:
|
|
fprintf(file, "<<");
|
|
break;
|
|
case OPERATOR_RSHIFT:
|
|
fprintf(file, ">>");
|
|
break;
|
|
case OPERATOR_AND:
|
|
fprintf(file, "&");
|
|
break;
|
|
case OPERATOR_BITCLEAR:
|
|
fprintf(file, "&^");
|
|
break;
|
|
case OPERATOR_NOT:
|
|
fprintf(file, "!");
|
|
break;
|
|
case OPERATOR_CHANOP:
|
|
fprintf(file, "<-");
|
|
break;
|
|
case OPERATOR_EQ:
|
|
fprintf(file, "=");
|
|
break;
|
|
case OPERATOR_PLUSEQ:
|
|
fprintf(file, "+=");
|
|
break;
|
|
case OPERATOR_MINUSEQ:
|
|
fprintf(file, "-=");
|
|
break;
|
|
case OPERATOR_OREQ:
|
|
fprintf(file, "|=");
|
|
break;
|
|
case OPERATOR_XOREQ:
|
|
fprintf(file, "^=");
|
|
break;
|
|
case OPERATOR_MULTEQ:
|
|
fprintf(file, "*=");
|
|
break;
|
|
case OPERATOR_DIVEQ:
|
|
fprintf(file, "/=");
|
|
break;
|
|
case OPERATOR_MODEQ:
|
|
fprintf(file, "%%=");
|
|
break;
|
|
case OPERATOR_LSHIFTEQ:
|
|
fprintf(file, "<<=");
|
|
break;
|
|
case OPERATOR_RSHIFTEQ:
|
|
fprintf(file, ">>=");
|
|
break;
|
|
case OPERATOR_ANDEQ:
|
|
fprintf(file, "&=");
|
|
break;
|
|
case OPERATOR_BITCLEAREQ:
|
|
fprintf(file, "&^=");
|
|
break;
|
|
case OPERATOR_PLUSPLUS:
|
|
fprintf(file, "++");
|
|
break;
|
|
case OPERATOR_MINUSMINUS:
|
|
fprintf(file, "--");
|
|
break;
|
|
case OPERATOR_COLON:
|
|
fprintf(file, ":");
|
|
break;
|
|
case OPERATOR_COLONEQ:
|
|
fprintf(file, ":=");
|
|
break;
|
|
case OPERATOR_SEMICOLON:
|
|
fprintf(file, ";");
|
|
break;
|
|
case OPERATOR_DOT:
|
|
fprintf(file, ".");
|
|
break;
|
|
case OPERATOR_COMMA:
|
|
fprintf(file, ",");
|
|
break;
|
|
case OPERATOR_LPAREN:
|
|
fprintf(file, "(");
|
|
break;
|
|
case OPERATOR_RPAREN:
|
|
fprintf(file, ")");
|
|
break;
|
|
case OPERATOR_LCURLY:
|
|
fprintf(file, "{");
|
|
break;
|
|
case OPERATOR_RCURLY:
|
|
fprintf(file, "}");
|
|
break;
|
|
case OPERATOR_LSQUARE:
|
|
fprintf(file, "[");
|
|
break;
|
|
case OPERATOR_RSQUARE:
|
|
fprintf(file, "]");
|
|
break;
|
|
default:
|
|
go_unreachable();
|
|
}
|
|
break;
|
|
default:
|
|
go_unreachable();
|
|
}
|
|
}
|
|
|
|
// Class Lex.
|
|
|
|
Lex::Lex(const char* input_file_name, FILE* input_file, Linemap* linemap)
|
|
: input_file_name_(input_file_name), input_file_(input_file),
|
|
linemap_(linemap), linebuf_(NULL), linebufsize_(120), linesize_(0),
|
|
lineoff_(0), lineno_(0), add_semi_at_eol_(false), saw_nointerface_(false),
|
|
extern_()
|
|
{
|
|
this->linebuf_ = new char[this->linebufsize_];
|
|
this->linemap_->start_file(input_file_name, 0);
|
|
}
|
|
|
|
Lex::~Lex()
|
|
{
|
|
delete[] this->linebuf_;
|
|
}
|
|
|
|
// Read a new line from the file.
|
|
|
|
ssize_t
|
|
Lex::get_line()
|
|
{
|
|
char* buf = this->linebuf_;
|
|
size_t size = this->linebufsize_;
|
|
|
|
FILE* file = this->input_file_;
|
|
size_t cur = 0;
|
|
while (true)
|
|
{
|
|
int c = getc(file);
|
|
if (c == EOF)
|
|
{
|
|
if (cur == 0)
|
|
return -1;
|
|
break;
|
|
}
|
|
if (cur + 1 >= size)
|
|
{
|
|
size_t ns = 2 * size + 1;
|
|
if (ns < size || static_cast<ssize_t>(ns) < 0)
|
|
error_at(this->location(), "out of memory");
|
|
char* nb = new char[ns];
|
|
memcpy(nb, buf, cur);
|
|
delete[] buf;
|
|
buf = nb;
|
|
size = ns;
|
|
}
|
|
buf[cur] = c;
|
|
++cur;
|
|
|
|
if (c == '\n')
|
|
break;
|
|
}
|
|
|
|
buf[cur] = '\0';
|
|
|
|
this->linebuf_ = buf;
|
|
this->linebufsize_ = size;
|
|
|
|
return cur;
|
|
}
|
|
|
|
// See if we need to read a new line. Return true if there is a new
|
|
// line, false if we are at EOF.
|
|
|
|
bool
|
|
Lex::require_line()
|
|
{
|
|
if (this->lineoff_ < this->linesize_)
|
|
return true;
|
|
|
|
ssize_t got = this->get_line();
|
|
if (got < 0)
|
|
return false;
|
|
++this->lineno_;
|
|
this->linesize_= got;
|
|
this->lineoff_ = 0;
|
|
|
|
this->linemap_->start_line(this->lineno_, this->linesize_);
|
|
|
|
return true;
|
|
}
|
|
|
|
// Get the current location.
|
|
|
|
Location
|
|
Lex::location() const
|
|
{
|
|
return this->linemap_->get_location(this->lineoff_ + 1);
|
|
}
|
|
|
|
// Get a location slightly before the current one. This is used for
|
|
// slightly more efficient handling of operator tokens.
|
|
|
|
Location
|
|
Lex::earlier_location(int chars) const
|
|
{
|
|
return this->linemap_->get_location(this->lineoff_ + 1 - chars);
|
|
}
|
|
|
|
// Get the next token.
|
|
|
|
Token
|
|
Lex::next_token()
|
|
{
|
|
bool saw_cpp_comment = false;
|
|
while (true)
|
|
{
|
|
if (!this->require_line())
|
|
{
|
|
bool add_semi_at_eol = this->add_semi_at_eol_;
|
|
this->add_semi_at_eol_ = false;
|
|
if (add_semi_at_eol)
|
|
return this->make_operator(OPERATOR_SEMICOLON, 1);
|
|
return this->make_eof_token();
|
|
}
|
|
|
|
if (!saw_cpp_comment)
|
|
this->extern_.clear();
|
|
saw_cpp_comment = false;
|
|
|
|
const char* p = this->linebuf_ + this->lineoff_;
|
|
const char* pend = this->linebuf_ + this->linesize_;
|
|
|
|
while (p < pend)
|
|
{
|
|
unsigned char cc = *p;
|
|
switch (cc)
|
|
{
|
|
case ' ': case '\t': case '\r':
|
|
++p;
|
|
// Skip whitespace quickly.
|
|
while (*p == ' ' || *p == '\t' || *p == '\r')
|
|
++p;
|
|
break;
|
|
|
|
case '\n':
|
|
{
|
|
++p;
|
|
bool add_semi_at_eol = this->add_semi_at_eol_;
|
|
this->add_semi_at_eol_ = false;
|
|
if (add_semi_at_eol)
|
|
{
|
|
this->lineoff_ = p - this->linebuf_;
|
|
return this->make_operator(OPERATOR_SEMICOLON, 1);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case '/':
|
|
if (p[1] == '/')
|
|
{
|
|
this->lineoff_ = p + 2 - this->linebuf_;
|
|
this->skip_cpp_comment();
|
|
p = pend;
|
|
if (p[-1] == '\n' && this->add_semi_at_eol_)
|
|
--p;
|
|
saw_cpp_comment = true;
|
|
}
|
|
else if (p[1] == '*')
|
|
{
|
|
this->lineoff_ = p + 2 - this->linebuf_;
|
|
Location location = this->location();
|
|
bool found_newline = false;
|
|
if (!this->skip_c_comment(&found_newline))
|
|
return Token::make_invalid_token(location);
|
|
if (found_newline && this->add_semi_at_eol_)
|
|
{
|
|
this->add_semi_at_eol_ = false;
|
|
return this->make_operator(OPERATOR_SEMICOLON, 1);
|
|
}
|
|
p = this->linebuf_ + this->lineoff_;
|
|
pend = this->linebuf_ + this->linesize_;
|
|
}
|
|
else if (p[1] == '=')
|
|
{
|
|
this->add_semi_at_eol_ = false;
|
|
this->lineoff_ = p + 2 - this->linebuf_;
|
|
return this->make_operator(OPERATOR_DIVEQ, 2);
|
|
}
|
|
else
|
|
{
|
|
this->add_semi_at_eol_ = false;
|
|
this->lineoff_ = p + 1 - this->linebuf_;
|
|
return this->make_operator(OPERATOR_DIV, 1);
|
|
}
|
|
break;
|
|
|
|
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
|
|
case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
|
|
case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
|
|
case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
|
|
case 'Y': case 'Z':
|
|
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
|
|
case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
|
|
case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
|
|
case 's': case 't': case 'u': case 'v': case 'w': case 'x':
|
|
case 'y': case 'z':
|
|
case '_':
|
|
this->lineoff_ = p - this->linebuf_;
|
|
return this->gather_identifier();
|
|
|
|
case '0': case '1': case '2': case '3': case '4':
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
this->add_semi_at_eol_ = true;
|
|
this->lineoff_ = p - this->linebuf_;
|
|
return this->gather_number();
|
|
|
|
case '\'':
|
|
this->add_semi_at_eol_ = true;
|
|
this->lineoff_ = p - this->linebuf_;
|
|
return this->gather_character();
|
|
|
|
case '"':
|
|
this->add_semi_at_eol_ = true;
|
|
this->lineoff_ = p - this->linebuf_;
|
|
return this->gather_string();
|
|
|
|
case '`':
|
|
this->add_semi_at_eol_ = true;
|
|
this->lineoff_ = p - this->linebuf_;
|
|
return this->gather_raw_string();
|
|
|
|
case '<':
|
|
case '>':
|
|
case '&':
|
|
if (p + 2 < pend)
|
|
{
|
|
this->add_semi_at_eol_ = false;
|
|
Operator op = this->three_character_operator(cc, p[1], p[2]);
|
|
if (op != OPERATOR_INVALID)
|
|
{
|
|
this->lineoff_ = p + 3 - this->linebuf_;
|
|
return this->make_operator(op, 3);
|
|
}
|
|
}
|
|
// Fall through.
|
|
case '|':
|
|
case '=':
|
|
case '!':
|
|
case '+':
|
|
case '-':
|
|
case '^':
|
|
case '*':
|
|
// '/' handled above.
|
|
case '%':
|
|
case ':':
|
|
case ';':
|
|
case ',':
|
|
case '(': case ')':
|
|
case '{': case '}':
|
|
case '[': case ']':
|
|
{
|
|
this->add_semi_at_eol_ = false;
|
|
Operator op = this->two_character_operator(cc, p[1]);
|
|
int chars;
|
|
if (op != OPERATOR_INVALID)
|
|
{
|
|
++p;
|
|
chars = 2;
|
|
}
|
|
else
|
|
{
|
|
op = this->one_character_operator(cc);
|
|
chars = 1;
|
|
}
|
|
this->lineoff_ = p + 1 - this->linebuf_;
|
|
return this->make_operator(op, chars);
|
|
}
|
|
|
|
case '.':
|
|
if (p[1] >= '0' && p[1] <= '9')
|
|
{
|
|
this->add_semi_at_eol_ = true;
|
|
this->lineoff_ = p - this->linebuf_;
|
|
return this->gather_number();
|
|
}
|
|
if (p[1] == '.' && p[2] == '.')
|
|
{
|
|
this->add_semi_at_eol_ = false;
|
|
this->lineoff_ = p + 3 - this->linebuf_;
|
|
return this->make_operator(OPERATOR_ELLIPSIS, 3);
|
|
}
|
|
this->add_semi_at_eol_ = false;
|
|
this->lineoff_ = p + 1 - this->linebuf_;
|
|
return this->make_operator(OPERATOR_DOT, 1);
|
|
|
|
default:
|
|
{
|
|
unsigned int ci;
|
|
bool issued_error;
|
|
this->lineoff_ = p - this->linebuf_;
|
|
const char *pnext = this->advance_one_utf8_char(p, &ci,
|
|
&issued_error);
|
|
|
|
// Ignore byte order mark at start of file.
|
|
if (ci == 0xfeff)
|
|
{
|
|
p = pnext;
|
|
break;
|
|
}
|
|
|
|
if (Lex::is_unicode_letter(ci))
|
|
return this->gather_identifier();
|
|
|
|
if (!issued_error)
|
|
error_at(this->location(),
|
|
"invalid character 0x%x in input file",
|
|
ci);
|
|
|
|
p = pend;
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
this->lineoff_ = p - this->linebuf_;
|
|
}
|
|
}
|
|
|
|
// Fetch one UTF-8 character from a string. Set *VALUE to the value.
|
|
// Return the number of bytes read from the string. Returns 0 if the
|
|
// string does not point to a valid UTF-8 character.
|
|
|
|
int
|
|
Lex::fetch_char(const char* p, unsigned int* value)
|
|
{
|
|
unsigned char c = *p;
|
|
if (c <= 0x7f)
|
|
{
|
|
*value = c;
|
|
return 1;
|
|
}
|
|
else if ((c & 0xe0) == 0xc0
|
|
&& (p[1] & 0xc0) == 0x80)
|
|
{
|
|
*value = (((c & 0x1f) << 6)
|
|
+ (p[1] & 0x3f));
|
|
if (*value <= 0x7f)
|
|
{
|
|
*value = 0xfffd;
|
|
return 0;
|
|
}
|
|
return 2;
|
|
}
|
|
else if ((c & 0xf0) == 0xe0
|
|
&& (p[1] & 0xc0) == 0x80
|
|
&& (p[2] & 0xc0) == 0x80)
|
|
{
|
|
*value = (((c & 0xf) << 12)
|
|
+ ((p[1] & 0x3f) << 6)
|
|
+ (p[2] & 0x3f));
|
|
if (*value <= 0x7ff)
|
|
{
|
|
*value = 0xfffd;
|
|
return 0;
|
|
}
|
|
return 3;
|
|
}
|
|
else if ((c & 0xf8) == 0xf0
|
|
&& (p[1] & 0xc0) == 0x80
|
|
&& (p[2] & 0xc0) == 0x80
|
|
&& (p[3] & 0xc0) == 0x80)
|
|
{
|
|
*value = (((c & 0x7) << 18)
|
|
+ ((p[1] & 0x3f) << 12)
|
|
+ ((p[2] & 0x3f) << 6)
|
|
+ (p[3] & 0x3f));
|
|
if (*value <= 0xffff)
|
|
{
|
|
*value = 0xfffd;
|
|
return 0;
|
|
}
|
|
return 4;
|
|
}
|
|
else
|
|
{
|
|
/* Invalid encoding. Return the Unicode replacement
|
|
character. */
|
|
*value = 0xfffd;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// Advance one UTF-8 character. Return the pointer beyond the
|
|
// character. Set *VALUE to the value. Set *ISSUED_ERROR if an error
|
|
// was issued.
|
|
|
|
const char*
|
|
Lex::advance_one_utf8_char(const char* p, unsigned int* value,
|
|
bool* issued_error)
|
|
{
|
|
*issued_error = false;
|
|
|
|
if (*p == '\0')
|
|
{
|
|
error_at(this->location(), "invalid NUL byte");
|
|
*issued_error = true;
|
|
*value = 0;
|
|
return p + 1;
|
|
}
|
|
|
|
int adv = Lex::fetch_char(p, value);
|
|
if (adv == 0)
|
|
{
|
|
error_at(this->location(), "invalid UTF-8 encoding");
|
|
*issued_error = true;
|
|
return p + 1;
|
|
}
|
|
|
|
// Warn about byte order mark, except at start of file.
|
|
if (*value == 0xfeff && (this->lineno_ != 1 || this->lineoff_ != 0))
|
|
{
|
|
error_at(this->location(), "Unicode (UTF-8) BOM in middle of file");
|
|
*issued_error = true;
|
|
}
|
|
|
|
return p + adv;
|
|
}
|
|
|
|
// Pick up an identifier.
|
|
|
|
Token
|
|
Lex::gather_identifier()
|
|
{
|
|
const char* pstart = this->linebuf_ + this->lineoff_;
|
|
const char* p = pstart;
|
|
const char* pend = this->linebuf_ + this->linesize_;
|
|
bool is_first = true;
|
|
bool is_exported = false;
|
|
bool has_non_ascii_char = false;
|
|
std::string buf;
|
|
while (p < pend)
|
|
{
|
|
unsigned char cc = *p;
|
|
if (cc <= 0x7f)
|
|
{
|
|
if ((cc < 'A' || cc > 'Z')
|
|
&& (cc < 'a' || cc > 'z')
|
|
&& cc != '_'
|
|
&& (cc < '0' || cc > '9'))
|
|
{
|
|
// Check for an invalid character here, as we get better
|
|
// error behavior if we swallow them as part of the
|
|
// identifier we are building.
|
|
if ((cc >= ' ' && cc < 0x7f)
|
|
|| cc == '\t'
|
|
|| cc == '\r'
|
|
|| cc == '\n')
|
|
break;
|
|
|
|
this->lineoff_ = p - this->linebuf_;
|
|
error_at(this->location(),
|
|
"invalid character 0x%x in identifier",
|
|
cc);
|
|
if (!has_non_ascii_char)
|
|
{
|
|
buf.assign(pstart, p - pstart);
|
|
has_non_ascii_char = true;
|
|
}
|
|
if (!Lex::is_invalid_identifier(buf))
|
|
buf.append("$INVALID$");
|
|
}
|
|
++p;
|
|
if (is_first)
|
|
{
|
|
is_exported = cc >= 'A' && cc <= 'Z';
|
|
is_first = false;
|
|
}
|
|
if (has_non_ascii_char)
|
|
buf.push_back(cc);
|
|
}
|
|
else
|
|
{
|
|
unsigned int ci;
|
|
bool issued_error;
|
|
this->lineoff_ = p - this->linebuf_;
|
|
const char* pnext = this->advance_one_utf8_char(p, &ci,
|
|
&issued_error);
|
|
bool is_invalid = false;
|
|
if (!Lex::is_unicode_letter(ci) && !Lex::is_unicode_digit(ci))
|
|
{
|
|
// There is no valid place for a non-ASCII character
|
|
// other than an identifier, so we get better error
|
|
// handling behavior if we swallow this character after
|
|
// giving an error.
|
|
if (!issued_error)
|
|
error_at(this->location(),
|
|
"invalid character 0x%x in identifier",
|
|
ci);
|
|
is_invalid = true;
|
|
}
|
|
if (is_first)
|
|
{
|
|
is_exported = Lex::is_unicode_uppercase(ci);
|
|
is_first = false;
|
|
}
|
|
if (!has_non_ascii_char)
|
|
{
|
|
buf.assign(pstart, p - pstart);
|
|
has_non_ascii_char = true;
|
|
}
|
|
if (is_invalid && !Lex::is_invalid_identifier(buf))
|
|
buf.append("$INVALID$");
|
|
buf.append(p, pnext - p);
|
|
p = pnext;
|
|
}
|
|
}
|
|
Location location = this->location();
|
|
this->add_semi_at_eol_ = true;
|
|
this->lineoff_ = p - this->linebuf_;
|
|
if (has_non_ascii_char)
|
|
return Token::make_identifier_token(buf, is_exported, location);
|
|
else
|
|
{
|
|
Keyword code = keywords.keyword_to_code(pstart, p - pstart);
|
|
if (code == KEYWORD_INVALID)
|
|
return Token::make_identifier_token(std::string(pstart, p - pstart),
|
|
is_exported, location);
|
|
else
|
|
{
|
|
switch (code)
|
|
{
|
|
case KEYWORD_BREAK:
|
|
case KEYWORD_CONTINUE:
|
|
case KEYWORD_FALLTHROUGH:
|
|
case KEYWORD_RETURN:
|
|
break;
|
|
default:
|
|
this->add_semi_at_eol_ = false;
|
|
break;
|
|
}
|
|
return Token::make_keyword_token(code, location);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Return whether C is a hex digit.
|
|
|
|
bool
|
|
Lex::is_hex_digit(char c)
|
|
{
|
|
return ((c >= '0' && c <= '9')
|
|
|| (c >= 'A' && c <= 'F')
|
|
|| (c >= 'a' && c <= 'f'));
|
|
}
|
|
|
|
// Return whether an exponent could start at P.
|
|
|
|
bool
|
|
Lex::could_be_exponent(const char* p, const char* pend)
|
|
{
|
|
if (*p != 'e' && *p != 'E')
|
|
return false;
|
|
++p;
|
|
if (p >= pend)
|
|
return false;
|
|
if (*p == '+' || *p == '-')
|
|
{
|
|
++p;
|
|
if (p >= pend)
|
|
return false;
|
|
}
|
|
return *p >= '0' && *p <= '9';
|
|
}
|
|
|
|
// Pick up a number.
|
|
|
|
Token
|
|
Lex::gather_number()
|
|
{
|
|
const char* pstart = this->linebuf_ + this->lineoff_;
|
|
const char* p = pstart;
|
|
const char* pend = this->linebuf_ + this->linesize_;
|
|
|
|
Location location = this->location();
|
|
|
|
bool neg = false;
|
|
if (*p == '+')
|
|
++p;
|
|
else if (*p == '-')
|
|
{
|
|
++p;
|
|
neg = true;
|
|
}
|
|
|
|
const char* pnum = p;
|
|
if (*p == '0')
|
|
{
|
|
int base;
|
|
if ((p[1] == 'x' || p[1] == 'X')
|
|
&& Lex::is_hex_digit(p[2]))
|
|
{
|
|
base = 16;
|
|
p += 2;
|
|
pnum = p;
|
|
while (p < pend)
|
|
{
|
|
if (!Lex::is_hex_digit(*p))
|
|
break;
|
|
++p;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
base = 8;
|
|
pnum = p;
|
|
while (p < pend)
|
|
{
|
|
if (*p < '0' || *p > '9')
|
|
break;
|
|
++p;
|
|
}
|
|
}
|
|
|
|
// A partial token that looks like an octal literal might actually be the
|
|
// beginning of a floating-point or imaginary literal.
|
|
if (base == 16 || (*p != '.' && *p != 'i' && !Lex::could_be_exponent(p, pend)))
|
|
{
|
|
std::string s(pnum, p - pnum);
|
|
mpz_t val;
|
|
int r = mpz_init_set_str(val, s.c_str(), base);
|
|
if (r != 0)
|
|
{
|
|
if (base == 8)
|
|
error_at(this->location(), "invalid octal literal");
|
|
else
|
|
error_at(this->location(), "invalid hex literal");
|
|
}
|
|
|
|
if (neg)
|
|
mpz_neg(val, val);
|
|
|
|
this->lineoff_ = p - this->linebuf_;
|
|
Token ret = Token::make_integer_token(val, location);
|
|
mpz_clear(val);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
while (p < pend)
|
|
{
|
|
if (*p < '0' || *p > '9')
|
|
break;
|
|
++p;
|
|
}
|
|
|
|
if (*p != '.' && *p != 'i' && !Lex::could_be_exponent(p, pend))
|
|
{
|
|
std::string s(pnum, p - pnum);
|
|
mpz_t val;
|
|
int r = mpz_init_set_str(val, s.c_str(), 10);
|
|
go_assert(r == 0);
|
|
|
|
if (neg)
|
|
mpz_neg(val, val);
|
|
|
|
this->lineoff_ = p - this->linebuf_;
|
|
Token ret = Token::make_integer_token(val, location);
|
|
mpz_clear(val);
|
|
return ret;
|
|
}
|
|
|
|
if (*p != 'i')
|
|
{
|
|
bool dot = *p == '.';
|
|
|
|
++p;
|
|
|
|
if (!dot)
|
|
{
|
|
if (*p == '+' || *p == '-')
|
|
++p;
|
|
}
|
|
|
|
while (p < pend)
|
|
{
|
|
if (*p < '0' || *p > '9')
|
|
break;
|
|
++p;
|
|
}
|
|
|
|
if (dot && Lex::could_be_exponent(p, pend))
|
|
{
|
|
++p;
|
|
if (*p == '+' || *p == '-')
|
|
++p;
|
|
while (p < pend)
|
|
{
|
|
if (*p < '0' || *p > '9')
|
|
break;
|
|
++p;
|
|
}
|
|
}
|
|
}
|
|
|
|
std::string s(pnum, p - pnum);
|
|
mpfr_t val;
|
|
int r = mpfr_init_set_str(val, s.c_str(), 10, GMP_RNDN);
|
|
go_assert(r == 0);
|
|
|
|
if (neg)
|
|
mpfr_neg(val, val, GMP_RNDN);
|
|
|
|
bool is_imaginary = *p == 'i';
|
|
if (is_imaginary)
|
|
++p;
|
|
|
|
this->lineoff_ = p - this->linebuf_;
|
|
if (is_imaginary)
|
|
{
|
|
Token ret = Token::make_imaginary_token(val, location);
|
|
mpfr_clear(val);
|
|
return ret;
|
|
}
|
|
else
|
|
{
|
|
Token ret = Token::make_float_token(val, location);
|
|
mpfr_clear(val);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
// Advance one character, possibly escaped. Return the pointer beyond
|
|
// the character. Set *VALUE to the character. Set *IS_CHARACTER if
|
|
// this is a character (e.g., 'a' or '\u1234') rather than a byte
|
|
// value (e.g., '\001').
|
|
|
|
const char*
|
|
Lex::advance_one_char(const char* p, bool is_single_quote, unsigned int* value,
|
|
bool* is_character)
|
|
{
|
|
*value = 0;
|
|
*is_character = true;
|
|
if (*p != '\\')
|
|
{
|
|
bool issued_error;
|
|
const char* ret = this->advance_one_utf8_char(p, value, &issued_error);
|
|
if (is_single_quote
|
|
&& (*value == '\'' || *value == '\n')
|
|
&& !issued_error)
|
|
error_at(this->location(), "invalid character literal");
|
|
return ret;
|
|
}
|
|
else
|
|
{
|
|
++p;
|
|
switch (*p)
|
|
{
|
|
case '0': case '1': case '2': case '3':
|
|
case '4': case '5': case '6': case '7':
|
|
*is_character = false;
|
|
if (p[1] >= '0' && p[1] <= '7'
|
|
&& p[2] >= '0' && p[2] <= '7')
|
|
{
|
|
*value = ((Lex::octal_value(p[0]) << 6)
|
|
+ (Lex::octal_value(p[1]) << 3)
|
|
+ Lex::octal_value(p[2]));
|
|
if (*value > 255)
|
|
{
|
|
error_at(this->location(), "invalid octal constant");
|
|
*value = 255;
|
|
}
|
|
return p + 3;
|
|
}
|
|
error_at(this->location(), "invalid octal character");
|
|
return (p[1] >= '0' && p[1] <= '7'
|
|
? p + 2
|
|
: p + 1);
|
|
|
|
case 'x':
|
|
*is_character = false;
|
|
if (Lex::is_hex_digit(p[1]) && Lex::is_hex_digit(p[2]))
|
|
{
|
|
*value = (hex_value(p[1]) << 4) + hex_value(p[2]);
|
|
return p + 3;
|
|
}
|
|
error_at(this->location(), "invalid hex character");
|
|
return (Lex::is_hex_digit(p[1])
|
|
? p + 2
|
|
: p + 1);
|
|
|
|
case 'a':
|
|
*value = '\a';
|
|
return p + 1;
|
|
case 'b':
|
|
*value = '\b';
|
|
return p + 1;
|
|
case 'f':
|
|
*value = '\f';
|
|
return p + 1;
|
|
case 'n':
|
|
*value = '\n';
|
|
return p + 1;
|
|
case 'r':
|
|
*value = '\r';
|
|
return p + 1;
|
|
case 't':
|
|
*value = '\t';
|
|
return p + 1;
|
|
case 'v':
|
|
*value = '\v';
|
|
return p + 1;
|
|
case '\\':
|
|
*value = '\\';
|
|
return p + 1;
|
|
case '\'':
|
|
if (!is_single_quote)
|
|
error_at(this->location(), "invalid quoted character");
|
|
*value = '\'';
|
|
return p + 1;
|
|
case '"':
|
|
if (is_single_quote)
|
|
error_at(this->location(), "invalid quoted character");
|
|
*value = '"';
|
|
return p + 1;
|
|
|
|
case 'u':
|
|
if (Lex::is_hex_digit(p[1]) && Lex::is_hex_digit(p[2])
|
|
&& Lex::is_hex_digit(p[3]) && Lex::is_hex_digit(p[4]))
|
|
{
|
|
*value = ((hex_value(p[1]) << 12)
|
|
+ (hex_value(p[2]) << 8)
|
|
+ (hex_value(p[3]) << 4)
|
|
+ hex_value(p[4]));
|
|
if (*value >= 0xd800 && *value < 0xe000)
|
|
{
|
|
error_at(this->location(),
|
|
"invalid unicode code point 0x%x",
|
|
*value);
|
|
// Use the replacement character.
|
|
*value = 0xfffd;
|
|
}
|
|
return p + 5;
|
|
}
|
|
error_at(this->location(), "invalid little unicode code point");
|
|
return p + 1;
|
|
|
|
case 'U':
|
|
if (Lex::is_hex_digit(p[1]) && Lex::is_hex_digit(p[2])
|
|
&& Lex::is_hex_digit(p[3]) && Lex::is_hex_digit(p[4])
|
|
&& Lex::is_hex_digit(p[5]) && Lex::is_hex_digit(p[6])
|
|
&& Lex::is_hex_digit(p[7]) && Lex::is_hex_digit(p[8]))
|
|
{
|
|
*value = ((hex_value(p[1]) << 28)
|
|
+ (hex_value(p[2]) << 24)
|
|
+ (hex_value(p[3]) << 20)
|
|
+ (hex_value(p[4]) << 16)
|
|
+ (hex_value(p[5]) << 12)
|
|
+ (hex_value(p[6]) << 8)
|
|
+ (hex_value(p[7]) << 4)
|
|
+ hex_value(p[8]));
|
|
if (*value > 0x10ffff
|
|
|| (*value >= 0xd800 && *value < 0xe000))
|
|
{
|
|
error_at(this->location(), "invalid unicode code point 0x%x",
|
|
*value);
|
|
// Use the replacement character.
|
|
*value = 0xfffd;
|
|
}
|
|
return p + 9;
|
|
}
|
|
error_at(this->location(), "invalid big unicode code point");
|
|
return p + 1;
|
|
|
|
default:
|
|
error_at(this->location(), "invalid character after %<\\%>");
|
|
*value = *p;
|
|
return p + 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Append V to STR. IS_CHARACTER is true for a character which should
|
|
// be stored in UTF-8, false for a general byte value which should be
|
|
// stored directly.
|
|
|
|
void
|
|
Lex::append_char(unsigned int v, bool is_character, std::string* str,
|
|
Location location)
|
|
{
|
|
char buf[4];
|
|
size_t len;
|
|
if (v <= 0x7f || !is_character)
|
|
{
|
|
buf[0] = v;
|
|
len = 1;
|
|
}
|
|
else if (v <= 0x7ff)
|
|
{
|
|
buf[0] = 0xc0 + (v >> 6);
|
|
buf[1] = 0x80 + (v & 0x3f);
|
|
len = 2;
|
|
}
|
|
else
|
|
{
|
|
if (v > 0x10ffff)
|
|
{
|
|
warning_at(location, 0,
|
|
"unicode code point 0x%x out of range in string", v);
|
|
// Turn it into the "replacement character".
|
|
v = 0xfffd;
|
|
}
|
|
if (v >= 0xd800 && v < 0xe000)
|
|
{
|
|
warning_at(location, 0,
|
|
"unicode code point 0x%x is invalid surrogate pair", v);
|
|
v = 0xfffd;
|
|
}
|
|
if (v <= 0xffff)
|
|
{
|
|
buf[0] = 0xe0 + (v >> 12);
|
|
buf[1] = 0x80 + ((v >> 6) & 0x3f);
|
|
buf[2] = 0x80 + (v & 0x3f);
|
|
len = 3;
|
|
}
|
|
else
|
|
{
|
|
buf[0] = 0xf0 + (v >> 18);
|
|
buf[1] = 0x80 + ((v >> 12) & 0x3f);
|
|
buf[2] = 0x80 + ((v >> 6) & 0x3f);
|
|
buf[3] = 0x80 + (v & 0x3f);
|
|
len = 4;
|
|
}
|
|
}
|
|
str->append(buf, len);
|
|
}
|
|
|
|
// Pick up a character literal.
|
|
|
|
Token
|
|
Lex::gather_character()
|
|
{
|
|
++this->lineoff_;
|
|
const char* pstart = this->linebuf_ + this->lineoff_;
|
|
const char* p = pstart;
|
|
|
|
unsigned int value;
|
|
bool is_character;
|
|
p = this->advance_one_char(p, true, &value, &is_character);
|
|
|
|
if (*p != '\'')
|
|
{
|
|
error_at(this->location(), "unterminated character constant");
|
|
this->lineoff_ = p - this->linebuf_;
|
|
return this->make_invalid_token();
|
|
}
|
|
|
|
mpz_t val;
|
|
mpz_init_set_ui(val, value);
|
|
|
|
Location location = this->location();
|
|
this->lineoff_ = p + 1 - this->linebuf_;
|
|
Token ret = Token::make_character_token(val, location);
|
|
mpz_clear(val);
|
|
return ret;
|
|
}
|
|
|
|
// Pick up a quoted string.
|
|
|
|
Token
|
|
Lex::gather_string()
|
|
{
|
|
const char* pstart = this->linebuf_ + this->lineoff_ + 1;
|
|
const char* p = pstart;
|
|
const char* pend = this->linebuf_ + this->linesize_;
|
|
|
|
std::string value;
|
|
while (*p != '"')
|
|
{
|
|
Location loc = this->location();
|
|
unsigned int c;
|
|
bool is_character;
|
|
this->lineoff_ = p - this->linebuf_;
|
|
p = this->advance_one_char(p, false, &c, &is_character);
|
|
if (p >= pend)
|
|
{
|
|
error_at(this->location(), "unterminated string");
|
|
--p;
|
|
break;
|
|
}
|
|
Lex::append_char(c, is_character, &value, loc);
|
|
}
|
|
|
|
Location location = this->location();
|
|
this->lineoff_ = p + 1 - this->linebuf_;
|
|
return Token::make_string_token(value, location);
|
|
}
|
|
|
|
// Pick up a raw string.
|
|
|
|
Token
|
|
Lex::gather_raw_string()
|
|
{
|
|
const char* p = this->linebuf_ + this->lineoff_ + 1;
|
|
const char* pend = this->linebuf_ + this->linesize_;
|
|
Location location = this->location();
|
|
|
|
std::string value;
|
|
while (true)
|
|
{
|
|
while (p < pend)
|
|
{
|
|
if (*p == '`')
|
|
{
|
|
this->lineoff_ = p + 1 - this->linebuf_;
|
|
return Token::make_string_token(value, location);
|
|
}
|
|
Location loc = this->location();
|
|
unsigned int c;
|
|
bool issued_error;
|
|
this->lineoff_ = p - this->linebuf_;
|
|
p = this->advance_one_utf8_char(p, &c, &issued_error);
|
|
// "Carriage return characters ('\r') inside raw string literals
|
|
// are discarded from the raw string value."
|
|
if (c != '\r')
|
|
Lex::append_char(c, true, &value, loc);
|
|
}
|
|
this->lineoff_ = p - this->linebuf_;
|
|
if (!this->require_line())
|
|
{
|
|
error_at(location, "unterminated raw string");
|
|
return Token::make_string_token(value, location);
|
|
}
|
|
p = this->linebuf_ + this->lineoff_;
|
|
pend = this->linebuf_ + this->linesize_;
|
|
}
|
|
}
|
|
|
|
// If C1 C2 C3 are a three character operator, return the code.
|
|
|
|
Operator
|
|
Lex::three_character_operator(char c1, char c2, char c3)
|
|
{
|
|
if (c3 == '=')
|
|
{
|
|
if (c1 == '<' && c2 == '<')
|
|
return OPERATOR_LSHIFTEQ;
|
|
else if (c1 == '>' && c2 == '>')
|
|
return OPERATOR_RSHIFTEQ;
|
|
else if (c1 == '&' && c2 == '^')
|
|
return OPERATOR_BITCLEAREQ;
|
|
}
|
|
return OPERATOR_INVALID;
|
|
}
|
|
|
|
// If C1 C2 are a two character operator, return the code.
|
|
|
|
Operator
|
|
Lex::two_character_operator(char c1, char c2)
|
|
{
|
|
switch (c1)
|
|
{
|
|
case '|':
|
|
if (c2 == '|')
|
|
return OPERATOR_OROR;
|
|
else if (c2 == '=')
|
|
return OPERATOR_OREQ;
|
|
break;
|
|
case '&':
|
|
if (c2 == '&')
|
|
return OPERATOR_ANDAND;
|
|
else if (c2 == '^')
|
|
return OPERATOR_BITCLEAR;
|
|
else if (c2 == '=')
|
|
return OPERATOR_ANDEQ;
|
|
break;
|
|
case '^':
|
|
if (c2 == '=')
|
|
return OPERATOR_XOREQ;
|
|
break;
|
|
case '=':
|
|
if (c2 == '=')
|
|
return OPERATOR_EQEQ;
|
|
break;
|
|
case '!':
|
|
if (c2 == '=')
|
|
return OPERATOR_NOTEQ;
|
|
break;
|
|
case '<':
|
|
if (c2 == '=')
|
|
return OPERATOR_LE;
|
|
else if (c2 == '<')
|
|
return OPERATOR_LSHIFT;
|
|
else if (c2 == '-')
|
|
return OPERATOR_CHANOP;
|
|
break;
|
|
case '>':
|
|
if (c2 == '=')
|
|
return OPERATOR_GE;
|
|
else if (c2 == '>')
|
|
return OPERATOR_RSHIFT;
|
|
break;
|
|
case '*':
|
|
if (c2 == '=')
|
|
return OPERATOR_MULTEQ;
|
|
break;
|
|
case '/':
|
|
if (c2 == '=')
|
|
return OPERATOR_DIVEQ;
|
|
break;
|
|
case '%':
|
|
if (c2 == '=')
|
|
return OPERATOR_MODEQ;
|
|
break;
|
|
case '+':
|
|
if (c2 == '+')
|
|
{
|
|
this->add_semi_at_eol_ = true;
|
|
return OPERATOR_PLUSPLUS;
|
|
}
|
|
else if (c2 == '=')
|
|
return OPERATOR_PLUSEQ;
|
|
break;
|
|
case '-':
|
|
if (c2 == '-')
|
|
{
|
|
this->add_semi_at_eol_ = true;
|
|
return OPERATOR_MINUSMINUS;
|
|
}
|
|
else if (c2 == '=')
|
|
return OPERATOR_MINUSEQ;
|
|
break;
|
|
case ':':
|
|
if (c2 == '=')
|
|
return OPERATOR_COLONEQ;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return OPERATOR_INVALID;
|
|
}
|
|
|
|
// If character C is an operator, return the code.
|
|
|
|
Operator
|
|
Lex::one_character_operator(char c)
|
|
{
|
|
switch (c)
|
|
{
|
|
case '<':
|
|
return OPERATOR_LT;
|
|
case '>':
|
|
return OPERATOR_GT;
|
|
case '+':
|
|
return OPERATOR_PLUS;
|
|
case '-':
|
|
return OPERATOR_MINUS;
|
|
case '|':
|
|
return OPERATOR_OR;
|
|
case '^':
|
|
return OPERATOR_XOR;
|
|
case '*':
|
|
return OPERATOR_MULT;
|
|
case '/':
|
|
return OPERATOR_DIV;
|
|
case '%':
|
|
return OPERATOR_MOD;
|
|
case '&':
|
|
return OPERATOR_AND;
|
|
case '!':
|
|
return OPERATOR_NOT;
|
|
case '=':
|
|
return OPERATOR_EQ;
|
|
case ':':
|
|
return OPERATOR_COLON;
|
|
case ';':
|
|
return OPERATOR_SEMICOLON;
|
|
case '.':
|
|
return OPERATOR_DOT;
|
|
case ',':
|
|
return OPERATOR_COMMA;
|
|
case '(':
|
|
return OPERATOR_LPAREN;
|
|
case ')':
|
|
this->add_semi_at_eol_ = true;
|
|
return OPERATOR_RPAREN;
|
|
case '{':
|
|
return OPERATOR_LCURLY;
|
|
case '}':
|
|
this->add_semi_at_eol_ = true;
|
|
return OPERATOR_RCURLY;
|
|
case '[':
|
|
return OPERATOR_LSQUARE;
|
|
case ']':
|
|
this->add_semi_at_eol_ = true;
|
|
return OPERATOR_RSQUARE;
|
|
default:
|
|
return OPERATOR_INVALID;
|
|
}
|
|
}
|
|
|
|
// Skip a C-style comment.
|
|
|
|
bool
|
|
Lex::skip_c_comment(bool* found_newline)
|
|
{
|
|
while (true)
|
|
{
|
|
if (!this->require_line())
|
|
{
|
|
error_at(this->location(), "unterminated comment");
|
|
return false;
|
|
}
|
|
|
|
const char* p = this->linebuf_ + this->lineoff_;
|
|
const char* pend = this->linebuf_ + this->linesize_;
|
|
|
|
while (p < pend)
|
|
{
|
|
if (p[0] == '*' && p + 1 < pend && p[1] == '/')
|
|
{
|
|
this->lineoff_ = p + 2 - this->linebuf_;
|
|
return true;
|
|
}
|
|
|
|
if (p[0] == '\n')
|
|
*found_newline = true;
|
|
|
|
this->lineoff_ = p - this->linebuf_;
|
|
unsigned int c;
|
|
bool issued_error;
|
|
p = this->advance_one_utf8_char(p, &c, &issued_error);
|
|
}
|
|
|
|
this->lineoff_ = p - this->linebuf_;
|
|
}
|
|
}
|
|
|
|
// Skip a C++-style comment.
|
|
|
|
void
|
|
Lex::skip_cpp_comment()
|
|
{
|
|
// Ensure that if EXTERN_ is set, it means that we just saw a
|
|
// //extern comment.
|
|
this->extern_.clear();
|
|
|
|
const char* p = this->linebuf_ + this->lineoff_;
|
|
const char* pend = this->linebuf_ + this->linesize_;
|
|
|
|
// By convention, a C++ comment at the start of the line of the form
|
|
// //line FILE:LINENO
|
|
// is interpreted as setting the file name and line number of the
|
|
// next source line.
|
|
|
|
if (this->lineoff_ == 2
|
|
&& pend - p > 5
|
|
&& memcmp(p, "line ", 5) == 0)
|
|
{
|
|
p += 5;
|
|
|
|
// Before finding FILE:LINENO, make sure line has valid characters.
|
|
const char* pcheck = p;
|
|
while (pcheck < pend)
|
|
{
|
|
unsigned int c;
|
|
bool issued_error;
|
|
pcheck = this->advance_one_utf8_char(pcheck, &c, &issued_error);
|
|
}
|
|
|
|
while (p < pend && *p == ' ')
|
|
++p;
|
|
const char* pcolon = static_cast<const char*>(memchr(p, ':', pend - p));
|
|
if (pcolon != NULL
|
|
&& pcolon[1] >= '0'
|
|
&& pcolon[1] <= '9')
|
|
{
|
|
char* plend;
|
|
long lineno = strtol(pcolon + 1, &plend, 10);
|
|
if (plend > pcolon + 1
|
|
&& (plend == pend
|
|
|| *plend < '0'
|
|
|| *plend > '9')
|
|
&& lineno > 0
|
|
&& lineno < 0x7fffffff)
|
|
{
|
|
unsigned int filelen = pcolon - p;
|
|
char* file = new char[filelen + 1];
|
|
memcpy(file, p, filelen);
|
|
file[filelen] = '\0';
|
|
|
|
this->linemap_->start_file(file, lineno);
|
|
this->lineno_ = lineno - 1;
|
|
|
|
p = plend;
|
|
}
|
|
}
|
|
}
|
|
|
|
// As a special gccgo extension, a C++ comment at the start of the
|
|
// line of the form
|
|
// //extern NAME
|
|
// which immediately precedes a function declaration means that the
|
|
// external name of the function declaration is NAME. This is
|
|
// normally used to permit Go code to call a C function.
|
|
if (this->lineoff_ == 2
|
|
&& pend - p > 7
|
|
&& memcmp(p, "extern ", 7) == 0)
|
|
{
|
|
p += 7;
|
|
while (p < pend && (*p == ' ' || *p == '\t'))
|
|
++p;
|
|
const char* plend = pend;
|
|
while (plend > p
|
|
&& (plend[-1] == ' ' || plend[-1] == '\t' || plend[-1] == '\n'))
|
|
--plend;
|
|
if (plend > p)
|
|
this->extern_ = std::string(p, plend - p);
|
|
}
|
|
|
|
// For field tracking analysis: a //go:nointerface comment means
|
|
// that the next interface method should not be stored in the type
|
|
// descriptor. This permits it to be discarded if it is not needed.
|
|
if (this->lineoff_ == 2
|
|
&& pend - p > 14
|
|
&& memcmp(p, "go:nointerface", 14) == 0)
|
|
this->saw_nointerface_ = true;
|
|
|
|
while (p < pend)
|
|
{
|
|
this->lineoff_ = p - this->linebuf_;
|
|
unsigned int c;
|
|
bool issued_error;
|
|
p = this->advance_one_utf8_char(p, &c, &issued_error);
|
|
if (issued_error)
|
|
this->extern_.clear();
|
|
}
|
|
}
|
|
|
|
// The Unicode tables use this struct.
|
|
|
|
struct Unicode_range
|
|
{
|
|
// The low end of the range.
|
|
unsigned int low;
|
|
// The high end of the range.
|
|
unsigned int high;
|
|
// The stride. This entries represents low, low + stride, low + 2 *
|
|
// stride, etc., up to high.
|
|
unsigned int stride;
|
|
};
|
|
|
|
// A table of whitespace characters--Unicode code points classified as
|
|
// "Space", "C" locale whitespace characters, the "next line" control
|
|
// character (0085), the line separator (2028), the paragraph
|
|
// separator (2029), and the "zero-width non-break space" (feff).
|
|
|
|
static const Unicode_range unicode_space[] =
|
|
{
|
|
{ 0x0009, 0x000d, 1 },
|
|
{ 0x0020, 0x0020, 1 },
|
|
{ 0x0085, 0x0085, 1 },
|
|
{ 0x00a0, 0x00a0, 1 },
|
|
{ 0x1680, 0x1680, 1 },
|
|
{ 0x180e, 0x180e, 1 },
|
|
{ 0x2000, 0x200a, 1 },
|
|
{ 0x2028, 0x2029, 1 },
|
|
{ 0x202f, 0x202f, 1 },
|
|
{ 0x205f, 0x205f, 1 },
|
|
{ 0x3000, 0x3000, 1 },
|
|
{ 0xfeff, 0xfeff, 1 },
|
|
};
|
|
|
|
// A table of Unicode digits--Unicode code points classified as
|
|
// "Digit".
|
|
|
|
static const Unicode_range unicode_digits[] =
|
|
{
|
|
{ 0x0030, 0x0039, 1},
|
|
{ 0x0660, 0x0669, 1},
|
|
{ 0x06f0, 0x06f9, 1},
|
|
{ 0x07c0, 0x07c9, 1},
|
|
{ 0x0966, 0x096f, 1},
|
|
{ 0x09e6, 0x09ef, 1},
|
|
{ 0x0a66, 0x0a6f, 1},
|
|
{ 0x0ae6, 0x0aef, 1},
|
|
{ 0x0b66, 0x0b6f, 1},
|
|
{ 0x0be6, 0x0bef, 1},
|
|
{ 0x0c66, 0x0c6f, 1},
|
|
{ 0x0ce6, 0x0cef, 1},
|
|
{ 0x0d66, 0x0d6f, 1},
|
|
{ 0x0e50, 0x0e59, 1},
|
|
{ 0x0ed0, 0x0ed9, 1},
|
|
{ 0x0f20, 0x0f29, 1},
|
|
{ 0x1040, 0x1049, 1},
|
|
{ 0x17e0, 0x17e9, 1},
|
|
{ 0x1810, 0x1819, 1},
|
|
{ 0x1946, 0x194f, 1},
|
|
{ 0x19d0, 0x19d9, 1},
|
|
{ 0x1b50, 0x1b59, 1},
|
|
{ 0xff10, 0xff19, 1},
|
|
{ 0x104a0, 0x104a9, 1},
|
|
{ 0x1d7ce, 0x1d7ff, 1},
|
|
};
|
|
|
|
// A table of Unicode letters--Unicode code points classified as
|
|
// "Letter".
|
|
|
|
static const Unicode_range unicode_letters[] =
|
|
{
|
|
{ 0x0041, 0x005a, 1},
|
|
{ 0x0061, 0x007a, 1},
|
|
{ 0x00aa, 0x00b5, 11},
|
|
{ 0x00ba, 0x00c0, 6},
|
|
{ 0x00c1, 0x00d6, 1},
|
|
{ 0x00d8, 0x00f6, 1},
|
|
{ 0x00f8, 0x02c1, 1},
|
|
{ 0x02c6, 0x02d1, 1},
|
|
{ 0x02e0, 0x02e4, 1},
|
|
{ 0x02ec, 0x02ee, 2},
|
|
{ 0x0370, 0x0374, 1},
|
|
{ 0x0376, 0x0377, 1},
|
|
{ 0x037a, 0x037d, 1},
|
|
{ 0x037f, 0x0386, 7},
|
|
{ 0x0388, 0x038a, 1},
|
|
{ 0x038c, 0x038e, 2},
|
|
{ 0x038f, 0x03a1, 1},
|
|
{ 0x03a3, 0x03f5, 1},
|
|
{ 0x03f7, 0x0481, 1},
|
|
{ 0x048a, 0x052f, 1},
|
|
{ 0x0531, 0x0556, 1},
|
|
{ 0x0559, 0x0561, 8},
|
|
{ 0x0562, 0x0587, 1},
|
|
{ 0x05d0, 0x05ea, 1},
|
|
{ 0x05f0, 0x05f2, 1},
|
|
{ 0x0620, 0x064a, 1},
|
|
{ 0x066e, 0x066f, 1},
|
|
{ 0x0671, 0x06d3, 1},
|
|
{ 0x06d5, 0x06e5, 16},
|
|
{ 0x06e6, 0x06ee, 8},
|
|
{ 0x06ef, 0x06fa, 11},
|
|
{ 0x06fb, 0x06fc, 1},
|
|
{ 0x06ff, 0x0710, 17},
|
|
{ 0x0712, 0x072f, 1},
|
|
{ 0x074d, 0x07a5, 1},
|
|
{ 0x07b1, 0x07ca, 25},
|
|
{ 0x07cb, 0x07ea, 1},
|
|
{ 0x07f4, 0x07f5, 1},
|
|
{ 0x07fa, 0x0800, 6},
|
|
{ 0x0801, 0x0815, 1},
|
|
{ 0x081a, 0x0824, 10},
|
|
{ 0x0828, 0x0840, 24},
|
|
{ 0x0841, 0x0858, 1},
|
|
{ 0x08a0, 0x08b4, 1},
|
|
{ 0x0904, 0x0939, 1},
|
|
{ 0x093d, 0x0950, 19},
|
|
{ 0x0958, 0x0961, 1},
|
|
{ 0x0971, 0x0980, 1},
|
|
{ 0x0985, 0x098c, 1},
|
|
{ 0x098f, 0x0990, 1},
|
|
{ 0x0993, 0x09a8, 1},
|
|
{ 0x09aa, 0x09b0, 1},
|
|
{ 0x09b2, 0x09b6, 4},
|
|
{ 0x09b7, 0x09b9, 1},
|
|
{ 0x09bd, 0x09ce, 17},
|
|
{ 0x09dc, 0x09dd, 1},
|
|
{ 0x09df, 0x09e1, 1},
|
|
{ 0x09f0, 0x09f1, 1},
|
|
{ 0x0a05, 0x0a0a, 1},
|
|
{ 0x0a0f, 0x0a10, 1},
|
|
{ 0x0a13, 0x0a28, 1},
|
|
{ 0x0a2a, 0x0a30, 1},
|
|
{ 0x0a32, 0x0a33, 1},
|
|
{ 0x0a35, 0x0a36, 1},
|
|
{ 0x0a38, 0x0a39, 1},
|
|
{ 0x0a59, 0x0a5c, 1},
|
|
{ 0x0a5e, 0x0a72, 20},
|
|
{ 0x0a73, 0x0a74, 1},
|
|
{ 0x0a85, 0x0a8d, 1},
|
|
{ 0x0a8f, 0x0a91, 1},
|
|
{ 0x0a93, 0x0aa8, 1},
|
|
{ 0x0aaa, 0x0ab0, 1},
|
|
{ 0x0ab2, 0x0ab3, 1},
|
|
{ 0x0ab5, 0x0ab9, 1},
|
|
{ 0x0abd, 0x0ad0, 19},
|
|
{ 0x0ae0, 0x0ae1, 1},
|
|
{ 0x0af9, 0x0b05, 12},
|
|
{ 0x0b06, 0x0b0c, 1},
|
|
{ 0x0b0f, 0x0b10, 1},
|
|
{ 0x0b13, 0x0b28, 1},
|
|
{ 0x0b2a, 0x0b30, 1},
|
|
{ 0x0b32, 0x0b33, 1},
|
|
{ 0x0b35, 0x0b39, 1},
|
|
{ 0x0b3d, 0x0b5c, 31},
|
|
{ 0x0b5d, 0x0b5f, 2},
|
|
{ 0x0b60, 0x0b61, 1},
|
|
{ 0x0b71, 0x0b83, 18},
|
|
{ 0x0b85, 0x0b8a, 1},
|
|
{ 0x0b8e, 0x0b90, 1},
|
|
{ 0x0b92, 0x0b95, 1},
|
|
{ 0x0b99, 0x0b9a, 1},
|
|
{ 0x0b9c, 0x0b9e, 2},
|
|
{ 0x0b9f, 0x0ba3, 4},
|
|
{ 0x0ba4, 0x0ba8, 4},
|
|
{ 0x0ba9, 0x0baa, 1},
|
|
{ 0x0bae, 0x0bb9, 1},
|
|
{ 0x0bd0, 0x0c05, 53},
|
|
{ 0x0c06, 0x0c0c, 1},
|
|
{ 0x0c0e, 0x0c10, 1},
|
|
{ 0x0c12, 0x0c28, 1},
|
|
{ 0x0c2a, 0x0c39, 1},
|
|
{ 0x0c3d, 0x0c58, 27},
|
|
{ 0x0c59, 0x0c5a, 1},
|
|
{ 0x0c60, 0x0c61, 1},
|
|
{ 0x0c85, 0x0c8c, 1},
|
|
{ 0x0c8e, 0x0c90, 1},
|
|
{ 0x0c92, 0x0ca8, 1},
|
|
{ 0x0caa, 0x0cb3, 1},
|
|
{ 0x0cb5, 0x0cb9, 1},
|
|
{ 0x0cbd, 0x0cde, 33},
|
|
{ 0x0ce0, 0x0ce1, 1},
|
|
{ 0x0cf1, 0x0cf2, 1},
|
|
{ 0x0d05, 0x0d0c, 1},
|
|
{ 0x0d0e, 0x0d10, 1},
|
|
{ 0x0d12, 0x0d3a, 1},
|
|
{ 0x0d3d, 0x0d5f, 17},
|
|
{ 0x0d60, 0x0d61, 1},
|
|
{ 0x0d7a, 0x0d7f, 1},
|
|
{ 0x0d85, 0x0d96, 1},
|
|
{ 0x0d9a, 0x0db1, 1},
|
|
{ 0x0db3, 0x0dbb, 1},
|
|
{ 0x0dbd, 0x0dc0, 3},
|
|
{ 0x0dc1, 0x0dc6, 1},
|
|
{ 0x0e01, 0x0e30, 1},
|
|
{ 0x0e32, 0x0e33, 1},
|
|
{ 0x0e40, 0x0e46, 1},
|
|
{ 0x0e81, 0x0e82, 1},
|
|
{ 0x0e84, 0x0e87, 3},
|
|
{ 0x0e88, 0x0e8a, 2},
|
|
{ 0x0e8d, 0x0e94, 7},
|
|
{ 0x0e95, 0x0e97, 1},
|
|
{ 0x0e99, 0x0e9f, 1},
|
|
{ 0x0ea1, 0x0ea3, 1},
|
|
{ 0x0ea5, 0x0ea7, 2},
|
|
{ 0x0eaa, 0x0eab, 1},
|
|
{ 0x0ead, 0x0eb0, 1},
|
|
{ 0x0eb2, 0x0eb3, 1},
|
|
{ 0x0ebd, 0x0ec0, 3},
|
|
{ 0x0ec1, 0x0ec4, 1},
|
|
{ 0x0ec6, 0x0edc, 22},
|
|
{ 0x0edd, 0x0edf, 1},
|
|
{ 0x0f00, 0x0f40, 64},
|
|
{ 0x0f41, 0x0f47, 1},
|
|
{ 0x0f49, 0x0f6c, 1},
|
|
{ 0x0f88, 0x0f8c, 1},
|
|
{ 0x1000, 0x102a, 1},
|
|
{ 0x103f, 0x1050, 17},
|
|
{ 0x1051, 0x1055, 1},
|
|
{ 0x105a, 0x105d, 1},
|
|
{ 0x1061, 0x1065, 4},
|
|
{ 0x1066, 0x106e, 8},
|
|
{ 0x106f, 0x1070, 1},
|
|
{ 0x1075, 0x1081, 1},
|
|
{ 0x108e, 0x10a0, 18},
|
|
{ 0x10a1, 0x10c5, 1},
|
|
{ 0x10c7, 0x10cd, 6},
|
|
{ 0x10d0, 0x10fa, 1},
|
|
{ 0x10fc, 0x1248, 1},
|
|
{ 0x124a, 0x124d, 1},
|
|
{ 0x1250, 0x1256, 1},
|
|
{ 0x1258, 0x125a, 2},
|
|
{ 0x125b, 0x125d, 1},
|
|
{ 0x1260, 0x1288, 1},
|
|
{ 0x128a, 0x128d, 1},
|
|
{ 0x1290, 0x12b0, 1},
|
|
{ 0x12b2, 0x12b5, 1},
|
|
{ 0x12b8, 0x12be, 1},
|
|
{ 0x12c0, 0x12c2, 2},
|
|
{ 0x12c3, 0x12c5, 1},
|
|
{ 0x12c8, 0x12d6, 1},
|
|
{ 0x12d8, 0x1310, 1},
|
|
{ 0x1312, 0x1315, 1},
|
|
{ 0x1318, 0x135a, 1},
|
|
{ 0x1380, 0x138f, 1},
|
|
{ 0x13a0, 0x13f5, 1},
|
|
{ 0x13f8, 0x13fd, 1},
|
|
{ 0x1401, 0x166c, 1},
|
|
{ 0x166f, 0x167f, 1},
|
|
{ 0x1681, 0x169a, 1},
|
|
{ 0x16a0, 0x16ea, 1},
|
|
{ 0x16f1, 0x16f8, 1},
|
|
{ 0x1700, 0x170c, 1},
|
|
{ 0x170e, 0x1711, 1},
|
|
{ 0x1720, 0x1731, 1},
|
|
{ 0x1740, 0x1751, 1},
|
|
{ 0x1760, 0x176c, 1},
|
|
{ 0x176e, 0x1770, 1},
|
|
{ 0x1780, 0x17b3, 1},
|
|
{ 0x17d7, 0x17dc, 5},
|
|
{ 0x1820, 0x1877, 1},
|
|
{ 0x1880, 0x18a8, 1},
|
|
{ 0x18aa, 0x18b0, 6},
|
|
{ 0x18b1, 0x18f5, 1},
|
|
{ 0x1900, 0x191e, 1},
|
|
{ 0x1950, 0x196d, 1},
|
|
{ 0x1970, 0x1974, 1},
|
|
{ 0x1980, 0x19ab, 1},
|
|
{ 0x19b0, 0x19c9, 1},
|
|
{ 0x1a00, 0x1a16, 1},
|
|
{ 0x1a20, 0x1a54, 1},
|
|
{ 0x1aa7, 0x1b05, 94},
|
|
{ 0x1b06, 0x1b33, 1},
|
|
{ 0x1b45, 0x1b4b, 1},
|
|
{ 0x1b83, 0x1ba0, 1},
|
|
{ 0x1bae, 0x1baf, 1},
|
|
{ 0x1bba, 0x1be5, 1},
|
|
{ 0x1c00, 0x1c23, 1},
|
|
{ 0x1c4d, 0x1c4f, 1},
|
|
{ 0x1c5a, 0x1c7d, 1},
|
|
{ 0x1ce9, 0x1cec, 1},
|
|
{ 0x1cee, 0x1cf1, 1},
|
|
{ 0x1cf5, 0x1cf6, 1},
|
|
{ 0x1d00, 0x1dbf, 1},
|
|
{ 0x1e00, 0x1f15, 1},
|
|
{ 0x1f18, 0x1f1d, 1},
|
|
{ 0x1f20, 0x1f45, 1},
|
|
{ 0x1f48, 0x1f4d, 1},
|
|
{ 0x1f50, 0x1f57, 1},
|
|
{ 0x1f59, 0x1f5f, 2},
|
|
{ 0x1f60, 0x1f7d, 1},
|
|
{ 0x1f80, 0x1fb4, 1},
|
|
{ 0x1fb6, 0x1fbc, 1},
|
|
{ 0x1fbe, 0x1fc2, 4},
|
|
{ 0x1fc3, 0x1fc4, 1},
|
|
{ 0x1fc6, 0x1fcc, 1},
|
|
{ 0x1fd0, 0x1fd3, 1},
|
|
{ 0x1fd6, 0x1fdb, 1},
|
|
{ 0x1fe0, 0x1fec, 1},
|
|
{ 0x1ff2, 0x1ff4, 1},
|
|
{ 0x1ff6, 0x1ffc, 1},
|
|
{ 0x2071, 0x207f, 14},
|
|
{ 0x2090, 0x209c, 1},
|
|
{ 0x2102, 0x2107, 5},
|
|
{ 0x210a, 0x2113, 1},
|
|
{ 0x2115, 0x2119, 4},
|
|
{ 0x211a, 0x211d, 1},
|
|
{ 0x2124, 0x212a, 2},
|
|
{ 0x212b, 0x212d, 1},
|
|
{ 0x212f, 0x2139, 1},
|
|
{ 0x213c, 0x213f, 1},
|
|
{ 0x2145, 0x2149, 1},
|
|
{ 0x214e, 0x2183, 53},
|
|
{ 0x2184, 0x2c00, 2684},
|
|
{ 0x2c01, 0x2c2e, 1},
|
|
{ 0x2c30, 0x2c5e, 1},
|
|
{ 0x2c60, 0x2ce4, 1},
|
|
{ 0x2ceb, 0x2cee, 1},
|
|
{ 0x2cf2, 0x2cf3, 1},
|
|
{ 0x2d00, 0x2d25, 1},
|
|
{ 0x2d27, 0x2d2d, 6},
|
|
{ 0x2d30, 0x2d67, 1},
|
|
{ 0x2d6f, 0x2d80, 17},
|
|
{ 0x2d81, 0x2d96, 1},
|
|
{ 0x2da0, 0x2da6, 1},
|
|
{ 0x2da8, 0x2dae, 1},
|
|
{ 0x2db0, 0x2db6, 1},
|
|
{ 0x2db8, 0x2dbe, 1},
|
|
{ 0x2dc0, 0x2dc6, 1},
|
|
{ 0x2dc8, 0x2dce, 1},
|
|
{ 0x2dd0, 0x2dd6, 1},
|
|
{ 0x2dd8, 0x2dde, 1},
|
|
{ 0x2e2f, 0x3005, 470},
|
|
{ 0x3006, 0x3031, 43},
|
|
{ 0x3032, 0x3035, 1},
|
|
{ 0x303b, 0x303c, 1},
|
|
{ 0x3041, 0x3096, 1},
|
|
{ 0x309d, 0x309f, 1},
|
|
{ 0x30a1, 0x30fa, 1},
|
|
{ 0x30fc, 0x30ff, 1},
|
|
{ 0x3105, 0x312d, 1},
|
|
{ 0x3131, 0x318e, 1},
|
|
{ 0x31a0, 0x31ba, 1},
|
|
{ 0x31f0, 0x31ff, 1},
|
|
{ 0x3400, 0x4db5, 1},
|
|
{ 0x4e00, 0x9fd5, 1},
|
|
{ 0xa000, 0xa48c, 1},
|
|
{ 0xa4d0, 0xa4fd, 1},
|
|
{ 0xa500, 0xa60c, 1},
|
|
{ 0xa610, 0xa61f, 1},
|
|
{ 0xa62a, 0xa62b, 1},
|
|
{ 0xa640, 0xa66e, 1},
|
|
{ 0xa67f, 0xa69d, 1},
|
|
{ 0xa6a0, 0xa6e5, 1},
|
|
{ 0xa717, 0xa71f, 1},
|
|
{ 0xa722, 0xa788, 1},
|
|
{ 0xa78b, 0xa7ad, 1},
|
|
{ 0xa7b0, 0xa7b7, 1},
|
|
{ 0xa7f7, 0xa801, 1},
|
|
{ 0xa803, 0xa805, 1},
|
|
{ 0xa807, 0xa80a, 1},
|
|
{ 0xa80c, 0xa822, 1},
|
|
{ 0xa840, 0xa873, 1},
|
|
{ 0xa882, 0xa8b3, 1},
|
|
{ 0xa8f2, 0xa8f7, 1},
|
|
{ 0xa8fb, 0xa8fd, 2},
|
|
{ 0xa90a, 0xa925, 1},
|
|
{ 0xa930, 0xa946, 1},
|
|
{ 0xa960, 0xa97c, 1},
|
|
{ 0xa984, 0xa9b2, 1},
|
|
{ 0xa9cf, 0xa9e0, 17},
|
|
{ 0xa9e1, 0xa9e4, 1},
|
|
{ 0xa9e6, 0xa9ef, 1},
|
|
{ 0xa9fa, 0xa9fe, 1},
|
|
{ 0xaa00, 0xaa28, 1},
|
|
{ 0xaa40, 0xaa42, 1},
|
|
{ 0xaa44, 0xaa4b, 1},
|
|
{ 0xaa60, 0xaa76, 1},
|
|
{ 0xaa7a, 0xaa7e, 4},
|
|
{ 0xaa7f, 0xaaaf, 1},
|
|
{ 0xaab1, 0xaab5, 4},
|
|
{ 0xaab6, 0xaab9, 3},
|
|
{ 0xaaba, 0xaabd, 1},
|
|
{ 0xaac0, 0xaac2, 2},
|
|
{ 0xaadb, 0xaadd, 1},
|
|
{ 0xaae0, 0xaaea, 1},
|
|
{ 0xaaf2, 0xaaf4, 1},
|
|
{ 0xab01, 0xab06, 1},
|
|
{ 0xab09, 0xab0e, 1},
|
|
{ 0xab11, 0xab16, 1},
|
|
{ 0xab20, 0xab26, 1},
|
|
{ 0xab28, 0xab2e, 1},
|
|
{ 0xab30, 0xab5a, 1},
|
|
{ 0xab5c, 0xab65, 1},
|
|
{ 0xab70, 0xabe2, 1},
|
|
{ 0xac00, 0xd7a3, 1},
|
|
{ 0xd7b0, 0xd7c6, 1},
|
|
{ 0xd7cb, 0xd7fb, 1},
|
|
{ 0xf900, 0xfa6d, 1},
|
|
{ 0xfa70, 0xfad9, 1},
|
|
{ 0xfb00, 0xfb06, 1},
|
|
{ 0xfb13, 0xfb17, 1},
|
|
{ 0xfb1d, 0xfb1f, 2},
|
|
{ 0xfb20, 0xfb28, 1},
|
|
{ 0xfb2a, 0xfb36, 1},
|
|
{ 0xfb38, 0xfb3c, 1},
|
|
{ 0xfb3e, 0xfb40, 2},
|
|
{ 0xfb41, 0xfb43, 2},
|
|
{ 0xfb44, 0xfb46, 2},
|
|
{ 0xfb47, 0xfbb1, 1},
|
|
{ 0xfbd3, 0xfd3d, 1},
|
|
{ 0xfd50, 0xfd8f, 1},
|
|
{ 0xfd92, 0xfdc7, 1},
|
|
{ 0xfdf0, 0xfdfb, 1},
|
|
{ 0xfe70, 0xfe74, 1},
|
|
{ 0xfe76, 0xfefc, 1},
|
|
{ 0xff21, 0xff3a, 1},
|
|
{ 0xff41, 0xff5a, 1},
|
|
{ 0xff66, 0xffbe, 1},
|
|
{ 0xffc2, 0xffc7, 1},
|
|
{ 0xffca, 0xffcf, 1},
|
|
{ 0xffd2, 0xffd7, 1},
|
|
{ 0xffda, 0xffdc, 1},
|
|
{ 0x10000, 0x1000b, 1},
|
|
{ 0x1000d, 0x10026, 1},
|
|
{ 0x10028, 0x1003a, 1},
|
|
{ 0x1003c, 0x1003d, 1},
|
|
{ 0x1003f, 0x1004d, 1},
|
|
{ 0x10050, 0x1005d, 1},
|
|
{ 0x10080, 0x100fa, 1},
|
|
{ 0x10280, 0x1029c, 1},
|
|
{ 0x102a0, 0x102d0, 1},
|
|
{ 0x10300, 0x1031f, 1},
|
|
{ 0x10330, 0x10340, 1},
|
|
{ 0x10342, 0x10349, 1},
|
|
{ 0x10350, 0x10375, 1},
|
|
{ 0x10380, 0x1039d, 1},
|
|
{ 0x103a0, 0x103c3, 1},
|
|
{ 0x103c8, 0x103cf, 1},
|
|
{ 0x10400, 0x1049d, 1},
|
|
{ 0x10500, 0x10527, 1},
|
|
{ 0x10530, 0x10563, 1},
|
|
{ 0x10600, 0x10736, 1},
|
|
{ 0x10740, 0x10755, 1},
|
|
{ 0x10760, 0x10767, 1},
|
|
{ 0x10800, 0x10805, 1},
|
|
{ 0x10808, 0x1080a, 2},
|
|
{ 0x1080b, 0x10835, 1},
|
|
{ 0x10837, 0x10838, 1},
|
|
{ 0x1083c, 0x1083f, 3},
|
|
{ 0x10840, 0x10855, 1},
|
|
{ 0x10860, 0x10876, 1},
|
|
{ 0x10880, 0x1089e, 1},
|
|
{ 0x108e0, 0x108f2, 1},
|
|
{ 0x108f4, 0x108f5, 1},
|
|
{ 0x10900, 0x10915, 1},
|
|
{ 0x10920, 0x10939, 1},
|
|
{ 0x10980, 0x109b7, 1},
|
|
{ 0x109be, 0x109bf, 1},
|
|
{ 0x10a00, 0x10a10, 16},
|
|
{ 0x10a11, 0x10a13, 1},
|
|
{ 0x10a15, 0x10a17, 1},
|
|
{ 0x10a19, 0x10a33, 1},
|
|
{ 0x10a60, 0x10a7c, 1},
|
|
{ 0x10a80, 0x10a9c, 1},
|
|
{ 0x10ac0, 0x10ac7, 1},
|
|
{ 0x10ac9, 0x10ae4, 1},
|
|
{ 0x10b00, 0x10b35, 1},
|
|
{ 0x10b40, 0x10b55, 1},
|
|
{ 0x10b60, 0x10b72, 1},
|
|
{ 0x10b80, 0x10b91, 1},
|
|
{ 0x10c00, 0x10c48, 1},
|
|
{ 0x10c80, 0x10cb2, 1},
|
|
{ 0x10cc0, 0x10cf2, 1},
|
|
{ 0x11003, 0x11037, 1},
|
|
{ 0x11083, 0x110af, 1},
|
|
{ 0x110d0, 0x110e8, 1},
|
|
{ 0x11103, 0x11126, 1},
|
|
{ 0x11150, 0x11172, 1},
|
|
{ 0x11176, 0x11183, 13},
|
|
{ 0x11184, 0x111b2, 1},
|
|
{ 0x111c1, 0x111c4, 1},
|
|
{ 0x111da, 0x111dc, 2},
|
|
{ 0x11200, 0x11211, 1},
|
|
{ 0x11213, 0x1122b, 1},
|
|
{ 0x11280, 0x11286, 1},
|
|
{ 0x11288, 0x1128a, 2},
|
|
{ 0x1128b, 0x1128d, 1},
|
|
{ 0x1128f, 0x1129d, 1},
|
|
{ 0x1129f, 0x112a8, 1},
|
|
{ 0x112b0, 0x112de, 1},
|
|
{ 0x11305, 0x1130c, 1},
|
|
{ 0x1130f, 0x11310, 1},
|
|
{ 0x11313, 0x11328, 1},
|
|
{ 0x1132a, 0x11330, 1},
|
|
{ 0x11332, 0x11333, 1},
|
|
{ 0x11335, 0x11339, 1},
|
|
{ 0x1133d, 0x11350, 19},
|
|
{ 0x1135d, 0x11361, 1},
|
|
{ 0x11480, 0x114af, 1},
|
|
{ 0x114c4, 0x114c5, 1},
|
|
{ 0x114c7, 0x11580, 185},
|
|
{ 0x11581, 0x115ae, 1},
|
|
{ 0x115d8, 0x115db, 1},
|
|
{ 0x11600, 0x1162f, 1},
|
|
{ 0x11644, 0x11680, 60},
|
|
{ 0x11681, 0x116aa, 1},
|
|
{ 0x11700, 0x11719, 1},
|
|
{ 0x118a0, 0x118df, 1},
|
|
{ 0x118ff, 0x11ac0, 449},
|
|
{ 0x11ac1, 0x11af8, 1},
|
|
{ 0x12000, 0x12399, 1},
|
|
{ 0x12480, 0x12543, 1},
|
|
{ 0x13000, 0x1342e, 1},
|
|
{ 0x14400, 0x14646, 1},
|
|
{ 0x16800, 0x16a38, 1},
|
|
{ 0x16a40, 0x16a5e, 1},
|
|
{ 0x16ad0, 0x16aed, 1},
|
|
{ 0x16b00, 0x16b2f, 1},
|
|
{ 0x16b40, 0x16b43, 1},
|
|
{ 0x16b63, 0x16b77, 1},
|
|
{ 0x16b7d, 0x16b8f, 1},
|
|
{ 0x16f00, 0x16f44, 1},
|
|
{ 0x16f50, 0x16f93, 67},
|
|
{ 0x16f94, 0x16f9f, 1},
|
|
{ 0x1b000, 0x1b001, 1},
|
|
{ 0x1bc00, 0x1bc6a, 1},
|
|
{ 0x1bc70, 0x1bc7c, 1},
|
|
{ 0x1bc80, 0x1bc88, 1},
|
|
{ 0x1bc90, 0x1bc99, 1},
|
|
{ 0x1d400, 0x1d454, 1},
|
|
{ 0x1d456, 0x1d49c, 1},
|
|
{ 0x1d49e, 0x1d49f, 1},
|
|
{ 0x1d4a2, 0x1d4a5, 3},
|
|
{ 0x1d4a6, 0x1d4a9, 3},
|
|
{ 0x1d4aa, 0x1d4ac, 1},
|
|
{ 0x1d4ae, 0x1d4b9, 1},
|
|
{ 0x1d4bb, 0x1d4bd, 2},
|
|
{ 0x1d4be, 0x1d4c3, 1},
|
|
{ 0x1d4c5, 0x1d505, 1},
|
|
{ 0x1d507, 0x1d50a, 1},
|
|
{ 0x1d50d, 0x1d514, 1},
|
|
{ 0x1d516, 0x1d51c, 1},
|
|
{ 0x1d51e, 0x1d539, 1},
|
|
{ 0x1d53b, 0x1d53e, 1},
|
|
{ 0x1d540, 0x1d544, 1},
|
|
{ 0x1d546, 0x1d54a, 4},
|
|
{ 0x1d54b, 0x1d550, 1},
|
|
{ 0x1d552, 0x1d6a5, 1},
|
|
{ 0x1d6a8, 0x1d6c0, 1},
|
|
{ 0x1d6c2, 0x1d6da, 1},
|
|
{ 0x1d6dc, 0x1d6fa, 1},
|
|
{ 0x1d6fc, 0x1d714, 1},
|
|
{ 0x1d716, 0x1d734, 1},
|
|
{ 0x1d736, 0x1d74e, 1},
|
|
{ 0x1d750, 0x1d76e, 1},
|
|
{ 0x1d770, 0x1d788, 1},
|
|
{ 0x1d78a, 0x1d7a8, 1},
|
|
{ 0x1d7aa, 0x1d7c2, 1},
|
|
{ 0x1d7c4, 0x1d7cb, 1},
|
|
{ 0x1e800, 0x1e8c4, 1},
|
|
{ 0x1ee00, 0x1ee03, 1},
|
|
{ 0x1ee05, 0x1ee1f, 1},
|
|
{ 0x1ee21, 0x1ee22, 1},
|
|
{ 0x1ee24, 0x1ee27, 3},
|
|
{ 0x1ee29, 0x1ee32, 1},
|
|
{ 0x1ee34, 0x1ee37, 1},
|
|
{ 0x1ee39, 0x1ee3b, 2},
|
|
{ 0x1ee42, 0x1ee47, 5},
|
|
{ 0x1ee49, 0x1ee4d, 2},
|
|
{ 0x1ee4e, 0x1ee4f, 1},
|
|
{ 0x1ee51, 0x1ee52, 1},
|
|
{ 0x1ee54, 0x1ee57, 3},
|
|
{ 0x1ee59, 0x1ee61, 2},
|
|
{ 0x1ee62, 0x1ee64, 2},
|
|
{ 0x1ee67, 0x1ee6a, 1},
|
|
{ 0x1ee6c, 0x1ee72, 1},
|
|
{ 0x1ee74, 0x1ee77, 1},
|
|
{ 0x1ee79, 0x1ee7c, 1},
|
|
{ 0x1ee7e, 0x1ee80, 2},
|
|
{ 0x1ee81, 0x1ee89, 1},
|
|
{ 0x1ee8b, 0x1ee9b, 1},
|
|
{ 0x1eea1, 0x1eea3, 1},
|
|
{ 0x1eea5, 0x1eea9, 1},
|
|
{ 0x1eeab, 0x1eebb, 1},
|
|
{ 0x20000, 0x2a6d6, 1},
|
|
{ 0x2a700, 0x2b734, 1},
|
|
{ 0x2b740, 0x2b81d, 1},
|
|
{ 0x2b820, 0x2cea1, 1},
|
|
{ 0x2f800, 0x2fa1d, 1},
|
|
};
|
|
|
|
// A table of Unicode uppercase letters--Unicode code points
|
|
// classified as "Letter, uppercase".
|
|
|
|
static const Unicode_range unicode_uppercase_letters[] =
|
|
{
|
|
{ 0x0041, 0x005a, 1},
|
|
{ 0x00c0, 0x00d6, 1},
|
|
{ 0x00d8, 0x00de, 1},
|
|
{ 0x0100, 0x0136, 2},
|
|
{ 0x0139, 0x0147, 2},
|
|
{ 0x014a, 0x0178, 2},
|
|
{ 0x0179, 0x017d, 2},
|
|
{ 0x0181, 0x0182, 1},
|
|
{ 0x0184, 0x0186, 2},
|
|
{ 0x0187, 0x0189, 2},
|
|
{ 0x018a, 0x018b, 1},
|
|
{ 0x018e, 0x0191, 1},
|
|
{ 0x0193, 0x0194, 1},
|
|
{ 0x0196, 0x0198, 1},
|
|
{ 0x019c, 0x019d, 1},
|
|
{ 0x019f, 0x01a0, 1},
|
|
{ 0x01a2, 0x01a6, 2},
|
|
{ 0x01a7, 0x01a9, 2},
|
|
{ 0x01ac, 0x01ae, 2},
|
|
{ 0x01af, 0x01b1, 2},
|
|
{ 0x01b2, 0x01b3, 1},
|
|
{ 0x01b5, 0x01b7, 2},
|
|
{ 0x01b8, 0x01bc, 4},
|
|
{ 0x01c4, 0x01cd, 3},
|
|
{ 0x01cf, 0x01db, 2},
|
|
{ 0x01de, 0x01ee, 2},
|
|
{ 0x01f1, 0x01f4, 3},
|
|
{ 0x01f6, 0x01f8, 1},
|
|
{ 0x01fa, 0x0232, 2},
|
|
{ 0x023a, 0x023b, 1},
|
|
{ 0x023d, 0x023e, 1},
|
|
{ 0x0241, 0x0243, 2},
|
|
{ 0x0244, 0x0246, 1},
|
|
{ 0x0248, 0x024e, 2},
|
|
{ 0x0370, 0x0372, 2},
|
|
{ 0x0376, 0x037f, 9},
|
|
{ 0x0386, 0x0388, 2},
|
|
{ 0x0389, 0x038a, 1},
|
|
{ 0x038c, 0x038e, 2},
|
|
{ 0x038f, 0x0391, 2},
|
|
{ 0x0392, 0x03a1, 1},
|
|
{ 0x03a3, 0x03ab, 1},
|
|
{ 0x03cf, 0x03d2, 3},
|
|
{ 0x03d3, 0x03d4, 1},
|
|
{ 0x03d8, 0x03ee, 2},
|
|
{ 0x03f4, 0x03f7, 3},
|
|
{ 0x03f9, 0x03fa, 1},
|
|
{ 0x03fd, 0x042f, 1},
|
|
{ 0x0460, 0x0480, 2},
|
|
{ 0x048a, 0x04c0, 2},
|
|
{ 0x04c1, 0x04cd, 2},
|
|
{ 0x04d0, 0x052e, 2},
|
|
{ 0x0531, 0x0556, 1},
|
|
{ 0x10a0, 0x10c5, 1},
|
|
{ 0x10c7, 0x10cd, 6},
|
|
{ 0x1e00, 0x1e94, 2},
|
|
{ 0x1e9e, 0x1efe, 2},
|
|
{ 0x1f08, 0x1f0f, 1},
|
|
{ 0x1f18, 0x1f1d, 1},
|
|
{ 0x1f28, 0x1f2f, 1},
|
|
{ 0x1f38, 0x1f3f, 1},
|
|
{ 0x1f48, 0x1f4d, 1},
|
|
{ 0x1f59, 0x1f5f, 2},
|
|
{ 0x1f68, 0x1f6f, 1},
|
|
{ 0x1fb8, 0x1fbb, 1},
|
|
{ 0x1fc8, 0x1fcb, 1},
|
|
{ 0x1fd8, 0x1fdb, 1},
|
|
{ 0x1fe8, 0x1fec, 1},
|
|
{ 0x1ff8, 0x1ffb, 1},
|
|
{ 0x2102, 0x2107, 5},
|
|
{ 0x210b, 0x210d, 1},
|
|
{ 0x2110, 0x2112, 1},
|
|
{ 0x2115, 0x2119, 4},
|
|
{ 0x211a, 0x211d, 1},
|
|
{ 0x2124, 0x212a, 2},
|
|
{ 0x212b, 0x212d, 1},
|
|
{ 0x2130, 0x2133, 1},
|
|
{ 0x213e, 0x213f, 1},
|
|
{ 0x2145, 0x2183, 62},
|
|
{ 0x2c00, 0x2c2e, 1},
|
|
{ 0x2c60, 0x2c62, 2},
|
|
{ 0x2c63, 0x2c64, 1},
|
|
{ 0x2c67, 0x2c6d, 2},
|
|
{ 0x2c6e, 0x2c70, 1},
|
|
{ 0x2c72, 0x2c75, 3},
|
|
{ 0x2c7e, 0x2c80, 1},
|
|
{ 0x2c82, 0x2ce2, 2},
|
|
{ 0x2ceb, 0x2ced, 2},
|
|
{ 0x2cf2, 0xa640, 31054},
|
|
{ 0xa642, 0xa66c, 2},
|
|
{ 0xa680, 0xa69a, 2},
|
|
{ 0xa722, 0xa72e, 2},
|
|
{ 0xa732, 0xa76e, 2},
|
|
{ 0xa779, 0xa77d, 2},
|
|
{ 0xa77e, 0xa786, 2},
|
|
{ 0xa78b, 0xa78d, 2},
|
|
{ 0xa790, 0xa792, 2},
|
|
{ 0xa796, 0xa7aa, 2},
|
|
{ 0xa7ab, 0xa7ad, 1},
|
|
{ 0xa7b0, 0xa7b1, 1},
|
|
{ 0xff21, 0xff3a, 1},
|
|
{ 0x10400, 0x10427, 1},
|
|
{ 0x118a0, 0x118bf, 1},
|
|
{ 0x1d400, 0x1d419, 1},
|
|
{ 0x1d434, 0x1d44d, 1},
|
|
{ 0x1d468, 0x1d481, 1},
|
|
{ 0x1d49c, 0x1d49e, 2},
|
|
{ 0x1d49f, 0x1d4a5, 3},
|
|
{ 0x1d4a6, 0x1d4a9, 3},
|
|
{ 0x1d4aa, 0x1d4ac, 1},
|
|
{ 0x1d4ae, 0x1d4b5, 1},
|
|
{ 0x1d4d0, 0x1d4e9, 1},
|
|
{ 0x1d504, 0x1d505, 1},
|
|
{ 0x1d507, 0x1d50a, 1},
|
|
{ 0x1d50d, 0x1d514, 1},
|
|
{ 0x1d516, 0x1d51c, 1},
|
|
{ 0x1d538, 0x1d539, 1},
|
|
{ 0x1d53b, 0x1d53e, 1},
|
|
{ 0x1d540, 0x1d544, 1},
|
|
{ 0x1d546, 0x1d54a, 4},
|
|
{ 0x1d54b, 0x1d550, 1},
|
|
{ 0x1d56c, 0x1d585, 1},
|
|
{ 0x1d5a0, 0x1d5b9, 1},
|
|
{ 0x1d5d4, 0x1d5ed, 1},
|
|
{ 0x1d608, 0x1d621, 1},
|
|
{ 0x1d63c, 0x1d655, 1},
|
|
{ 0x1d670, 0x1d689, 1},
|
|
{ 0x1d6a8, 0x1d6c0, 1},
|
|
{ 0x1d6e2, 0x1d6fa, 1},
|
|
{ 0x1d71c, 0x1d734, 1},
|
|
{ 0x1d756, 0x1d76e, 1},
|
|
{ 0x1d790, 0x1d7a8, 1},
|
|
{ 0x1d7ca, 0x1d7ca, 1},
|
|
};
|
|
|
|
// Return true if C is in RANGES.
|
|
|
|
bool
|
|
Lex::is_in_unicode_range(unsigned int c, const Unicode_range* ranges,
|
|
size_t range_size)
|
|
{
|
|
if (c < 0x100)
|
|
{
|
|
// The common case is a small value, and we know that it will be
|
|
// in the first few entries of the table. Do a linear scan
|
|
// rather than a binary search.
|
|
for (size_t i = 0; i < range_size; ++i)
|
|
{
|
|
const Unicode_range* p = &ranges[i];
|
|
if (c <= p->high)
|
|
{
|
|
if (c < p->low)
|
|
return false;
|
|
return (c - p->low) % p->stride == 0;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
size_t lo = 0;
|
|
size_t hi = range_size;
|
|
while (lo < hi)
|
|
{
|
|
size_t mid = lo + (hi - lo) / 2;
|
|
const Unicode_range* p = &ranges[mid];
|
|
if (c < p->low)
|
|
hi = mid;
|
|
else if (c > p->high)
|
|
lo = mid + 1;
|
|
else
|
|
return (c - p->low) % p->stride == 0;
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Return whether C is a space character.
|
|
|
|
bool
|
|
Lex::is_unicode_space(unsigned int c)
|
|
{
|
|
return Lex::is_in_unicode_range(c, unicode_space,
|
|
ARRAY_SIZE(unicode_space));
|
|
}
|
|
|
|
// Return whether C is a Unicode digit--a Unicode code point
|
|
// classified as "Digit".
|
|
|
|
bool
|
|
Lex::is_unicode_digit(unsigned int c)
|
|
{
|
|
return Lex::is_in_unicode_range(c, unicode_digits,
|
|
ARRAY_SIZE(unicode_digits));
|
|
}
|
|
|
|
// Return whether C is a Unicode letter--a Unicode code point
|
|
// classified as "Letter".
|
|
|
|
bool
|
|
Lex::is_unicode_letter(unsigned int c)
|
|
{
|
|
return Lex::is_in_unicode_range(c, unicode_letters,
|
|
ARRAY_SIZE(unicode_letters));
|
|
}
|
|
|
|
// Return whether C is a Unicode uppercase letter. a Unicode code
|
|
// point classified as "Letter, uppercase".
|
|
|
|
bool
|
|
Lex::is_unicode_uppercase(unsigned int c)
|
|
{
|
|
return Lex::is_in_unicode_range(c, unicode_uppercase_letters,
|
|
ARRAY_SIZE(unicode_uppercase_letters));
|
|
}
|
|
|
|
// Return whether the identifier NAME should be exported. NAME is a
|
|
// mangled name which includes only ASCII characters.
|
|
|
|
bool
|
|
Lex::is_exported_name(const std::string& name)
|
|
{
|
|
unsigned char c = name[0];
|
|
if (c != '$')
|
|
return c >= 'A' && c <= 'Z';
|
|
else
|
|
{
|
|
const char* p = name.data();
|
|
size_t len = name.length();
|
|
if (len < 2 || p[1] != 'U')
|
|
return false;
|
|
unsigned int ci = 0;
|
|
for (size_t i = 2; i < len && p[i] != '$'; ++i)
|
|
{
|
|
c = p[i];
|
|
if (!hex_p(c))
|
|
return false;
|
|
ci <<= 4;
|
|
ci |= hex_value(c);
|
|
}
|
|
return Lex::is_unicode_uppercase(ci);
|
|
}
|
|
}
|
|
|
|
// Return whether the identifier NAME contains an invalid character.
|
|
// This is based on how we handle invalid characters in
|
|
// gather_identifier.
|
|
|
|
bool
|
|
Lex::is_invalid_identifier(const std::string& name)
|
|
{
|
|
return name.find("$INVALID$") != std::string::npos;
|
|
}
|