1 /* -*- indented-text -*- */
2 /* Process source files and output type information.
3 Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
26 #define malloc xmalloc
27 #define realloc xrealloc
32 #define YY_DECL int yylex (const char **yylval)
33 #define yyterminate() return EOF_TOKEN
35 struct fileloc lexer_line;
36 int lexer_toplevel_done;
39 update_lineno (const char *l, size_t len)
48 ID [[:alpha:]_][[:alnum:]_]*
51 IWORD short|long|(un)?signed|char|int|HOST_WIDE_INT|HOST_WIDEST_INT|bool|size_t|BOOL_BITFIELD|CPPCHAR_SIGNED_T|ino_t|dev_t
52 ITYPE {IWORD}({WS}{IWORD})*
55 %x in_struct in_struct_comment in_comment
56 %option warn noyywrap nounput nodefault perf-report
57 %option 8bit never-interactive
59 /* Do this on entry to yylex(): */
61 if (lexer_toplevel_done)
64 lexer_toplevel_done = 0;
67 /* Things we look for in skipping mode: */
69 ^{HWS}typedef/{EOID} {
90 ^{HWS}DEF_VEC_[OP]/{EOID} {
94 ^{HWS}DEF_VEC_I/{EOID} {
98 ^{HWS}DEF_VEC_ALLOC_[IOP]/{EOID} {
106 "/*" { BEGIN(in_struct_comment); }
108 {WS} { update_lineno (yytext, yyleng); }
109 \\\n { lexer_line.line++; }
111 "const"/{EOID} /* don't care */
112 "GTY"/{EOID} { return GTY_TOKEN; }
113 "VEC"/{EOID} { return VEC_TOKEN; }
114 "union"/{EOID} { return UNION; }
115 "struct"/{EOID} { return STRUCT; }
116 "enum"/{EOID} { return ENUM; }
117 "ptr_alias"/{EOID} { return PTR_ALIAS; }
118 "nested_ptr"/{EOID} { return NESTED_PTR; }
119 [0-9]+ { return NUM; }
120 "param"[0-9]*"_is"/{EOID} {
121 *yylval = XDUPVAR (const char, yytext, yyleng, yyleng+1);
125 {IWORD}({WS}{IWORD})*/{EOID} |
126 "ENUM_BITFIELD"{WS}?"("{WS}?{ID}{WS}?")" {
129 for (len = yyleng; ISSPACE (yytext[len-1]); len--)
132 *yylval = XDUPVAR (const char, yytext, len, len+1);
133 update_lineno (yytext, yyleng);
139 *yylval = XDUPVAR (const char, yytext, yyleng, yyleng+1);
144 *yylval = XDUPVAR (const char, yytext+1, yyleng-2, yyleng-1);
147 /* This "terminal" avoids having to parse integer constant expressions. */
149 *yylval = XDUPVAR (const char, yytext+1, yyleng-2, yyleng-1);
152 "'"("\\".|[^\\])"'" {
153 *yylval = XDUPVAR (const char, yytext+1, yyleng-2, yyleng);
157 "..." { return ELLIPSIS; }
158 [(){},*:<>;=%|-] { return yytext[0]; }
160 /* ignore pp-directives */
161 ^{HWS}"#"{HWS}[a-z_]+[^\n]*\n {lexer_line.line++;}
164 error_at_line (&lexer_line, "unexpected character `%s'", yytext);
168 "/*" { BEGIN(in_comment); }
169 \n { lexer_line.line++; }
171 "'"("\\".|[^\\])"'" |
172 [^"/\n] /* do nothing */
173 \"([^"\\]|\\.|\\\n)*\" { update_lineno (yytext, yyleng); }
174 "/"/[^*] /* do nothing */
176 <in_comment,in_struct_comment>{
177 \n { lexer_line.line++; }
179 [^*\n] /* do nothing */
180 "*"/[^/] /* do nothing */
182 <in_comment>"*/" { BEGIN(INITIAL); }
183 <in_struct_comment>"*/" { BEGIN(in_struct); }
186 <in_struct_comment,in_comment>"*" {
187 error_at_line (&lexer_line,
188 "unterminated comment or string; unexpected EOF");
191 ^{HWS}"#"{HWS}"define"{WS}"GTY(" /* do nothing */
196 yybegin (const char *fname)
198 yyin = fopen (fname, "r");
204 lexer_line.file = fname;