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%{
// Copyright 2019 The CC Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
%}
%yyc c
%yyn c = s.next()
%yym s.mark = len(s.charBuf)
%{
package cc // import "modernc.org/cc/v3"
func (s *scanner) scan() (r rune) {
%}
c-char [^'\n\x80\\]|{escape-sequence}
c-char-sequence {c-char}+
character-constant '{c-char-sequence}'
comment "/*"([^*\x80]|\*+[^*/\x80])*\*+\/
comment-not-terminated "/*"([^*\x80]|\*+[^*/\x80])*(\*+)?\n\x80
digit [0-9]
escape-sequence {simple-sequence}|{octal-escape-sequence}|{hexadecimal-escape-sequence}|{universal-character-name}
hex-quad {hexadecimal-digit}{hexadecimal-digit}{hexadecimal-digit}{hexadecimal-digit}
hexadecimal-digit [0-9a-fA-F]
hexadecimal-escape-sequence \\x{hexadecimal-digit}+
identifier {identifier-nondigit}({identifier-nondigit}|{digit}|"$")*
identifier-nondigit {nondigit}|"$"|{universal-character-name}
line-comment "//"[^\n\x80]*
nondigit [_a-zA-Z\x81]
octal-digit [0-7]
octal-escape-sequence \\{octal-digit}{octal-digit}?{octal-digit}?
pp-number ({digit}|\.{digit})({digit}|{identifier-nondigit}|[eEpP]{sign}|\.)*
s-char [^\x22\n\x80\\]|{escape-sequence}
s-char-sequence {s-char}+
sign [-+]
simple-sequence \\['\x22?\\abefnrtv]
string-literal \x22{s-char-sequence}?\x22
universal-character-name \\u{hex-quad}|\\U{hex-quad}{hex-quad}
white-space [ \t\f\v]
%%
c := s.initScan()
({white-space}|{comment})*{line-comment} |
({white-space}|{comment})+{line-comment}?
return ' '
(({white-space}|{comment})*{comment-not-terminated})+
return s.unterminatedComment()
"!=" return NEQ
"##" return PPPASTE
"%:" return '#'
"%:%:" return PPPASTE
"%=" return MODASSIGN
"%>" return '}'
"&&" return ANDAND
"&=" return ANDASSIGN
"*=" return MULASSIGN
"++" return INC
"+=" return ADDASSIGN
"--" return DEC
"-=" return SUBASSIGN
"->" return ARROW
"..." return DDD
"/=" return DIVASSIGN
":>" return ']'
"<%" return '{'
"<:" return '['
"<<" return LSH
"<<=" return LSHASSIGN
"<=" return LEQ
"==" return EQ
">=" return GEQ
">>" return RSH
">>=" return RSHASSIGN
"^=" return XORASSIGN
"|=" return ORASSIGN
"||" return OROR
L{string-literal} return LONGSTRINGLITERAL
L{character-constant} return LONGCHARCONST
{character-constant} return CHARCONST
{identifier} return IDENTIFIER
{pp-number} return PPNUMBER
{string-literal} return STRINGLITERAL
\r?\n return '\n'
%%
if c, ok := s.abort(); ok {
return rune(c)
}
goto yyAction
}
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