| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| /** |
| * Thrift scanner. |
| * |
| * Tokenizes a thrift definition file. |
| */ |
| |
| %{ |
| |
| #include <string> |
| #include <errno.h> |
| |
| #include "main.h" |
| #include "globals.h" |
| #include "parse/t_program.h" |
| |
| /** |
| * Must be included AFTER parse/t_program.h, but I can't remember why anymore |
| * because I wrote this a while ago. |
| */ |
| #include "thrifty.h" |
| |
| void thrift_reserved_keyword(char* keyword) { |
| yyerror("Cannot use reserved language keyword: \"%s\"\n", keyword); |
| exit(1); |
| } |
| |
| void integer_overflow(char* text) { |
| yyerror("This integer is too big: \"%s\"\n", text); |
| exit(1); |
| } |
| |
| %} |
| |
| /** |
| * Provides the yylineno global, useful for debugging output |
| */ |
| %option lex-compat |
| |
| /** |
| * Our inputs are all single files, so no need for yywrap |
| */ |
| %option noyywrap |
| |
| /** |
| * We don't use it, and it fires up warnings at -Wall |
| */ |
| %option nounput |
| |
| /** |
| * Helper definitions, comments, constants, and whatnot |
| */ |
| |
| intconstant ([+-]?[0-9]+) |
| hexconstant ("0x"[0-9A-Fa-f]+) |
| dubconstant ([+-]?[0-9]*(\.[0-9]+)?([eE][+-]?[0-9]+)?) |
| identifier ([a-zA-Z_][\.a-zA-Z_0-9]*) |
| whitespace ([ \t\r\n]*) |
| sillycomm ("/*""*"*"*/") |
| multicomm ("/*"[^*]"/"*([^*/]|[^*]"/"|"*"[^/])*"*"*"*/") |
| doctext ("/**"([^*/]|[^*]"/"|"*"[^/])*"*"*"*/") |
| comment ("//"[^\n]*) |
| unixcomment ("#"[^\n]*) |
| symbol ([:;\,\{\}\(\)\=<>\[\]]) |
| st_identifier ([a-zA-Z-][\.a-zA-Z_0-9-]*) |
| literal_begin (['\"]) |
| |
| %% |
| |
| {whitespace} { /* do nothing */ } |
| {sillycomm} { /* do nothing */ } |
| {multicomm} { /* do nothing */ } |
| {comment} { /* do nothing */ } |
| {unixcomment} { /* do nothing */ } |
| |
| {symbol} { return yytext[0]; } |
| |
| "namespace" { return tok_namespace; } |
| "cpp_namespace" { return tok_cpp_namespace; } |
| "cpp_include" { return tok_cpp_include; } |
| "cpp_type" { return tok_cpp_type; } |
| "java_package" { return tok_java_package; } |
| "cocoa_prefix" { return tok_cocoa_prefix; } |
| "csharp_namespace" { return tok_csharp_namespace; } |
| "php_namespace" { return tok_php_namespace; } |
| "py_module" { return tok_py_module; } |
| "perl_package" { return tok_perl_package; } |
| "ruby_namespace" { return tok_ruby_namespace; } |
| "smalltalk_category" { return tok_smalltalk_category; } |
| "smalltalk_prefix" { return tok_smalltalk_prefix; } |
| "xsd_all" { return tok_xsd_all; } |
| "xsd_optional" { return tok_xsd_optional; } |
| "xsd_nillable" { return tok_xsd_nillable; } |
| "xsd_namespace" { return tok_xsd_namespace; } |
| "xsd_attrs" { return tok_xsd_attrs; } |
| "include" { return tok_include; } |
| "void" { return tok_void; } |
| "bool" { return tok_bool; } |
| "byte" { return tok_byte; } |
| "i16" { return tok_i16; } |
| "i32" { return tok_i32; } |
| "i64" { return tok_i64; } |
| "double" { return tok_double; } |
| "string" { return tok_string; } |
| "binary" { return tok_binary; } |
| "slist" { return tok_slist; } |
| "senum" { return tok_senum; } |
| "map" { return tok_map; } |
| "list" { return tok_list; } |
| "set" { return tok_set; } |
| "oneway" { return tok_oneway; } |
| "typedef" { return tok_typedef; } |
| "struct" { return tok_struct; } |
| "union" { return tok_union; } |
| "exception" { return tok_xception; } |
| "extends" { return tok_extends; } |
| "throws" { return tok_throws; } |
| "service" { return tok_service; } |
| "enum" { return tok_enum; } |
| "const" { return tok_const; } |
| "required" { return tok_required; } |
| "optional" { return tok_optional; } |
| "async" { |
| pwarning(0, "\"async\" is deprecated. It is called \"oneway\" now.\n"); |
| return tok_oneway; |
| } |
| |
| |
| "BEGIN" { thrift_reserved_keyword(yytext); } |
| "END" { thrift_reserved_keyword(yytext); } |
| "__CLASS__" { thrift_reserved_keyword(yytext); } |
| "__DIR__" { thrift_reserved_keyword(yytext); } |
| "__FILE__" { thrift_reserved_keyword(yytext); } |
| "__FUNCTION__" { thrift_reserved_keyword(yytext); } |
| "__LINE__" { thrift_reserved_keyword(yytext); } |
| "__METHOD__" { thrift_reserved_keyword(yytext); } |
| "__NAMESPACE__" { thrift_reserved_keyword(yytext); } |
| "abstract" { thrift_reserved_keyword(yytext); } |
| "alias" { thrift_reserved_keyword(yytext); } |
| "and" { thrift_reserved_keyword(yytext); } |
| "args" { thrift_reserved_keyword(yytext); } |
| "as" { thrift_reserved_keyword(yytext); } |
| "assert" { thrift_reserved_keyword(yytext); } |
| "begin" { thrift_reserved_keyword(yytext); } |
| "break" { thrift_reserved_keyword(yytext); } |
| "case" { thrift_reserved_keyword(yytext); } |
| "catch" { thrift_reserved_keyword(yytext); } |
| "class" { thrift_reserved_keyword(yytext); } |
| "clone" { thrift_reserved_keyword(yytext); } |
| "continue" { thrift_reserved_keyword(yytext); } |
| "declare" { thrift_reserved_keyword(yytext); } |
| "def" { thrift_reserved_keyword(yytext); } |
| "default" { thrift_reserved_keyword(yytext); } |
| "del" { thrift_reserved_keyword(yytext); } |
| "delete" { thrift_reserved_keyword(yytext); } |
| "do" { thrift_reserved_keyword(yytext); } |
| "dynamic" { thrift_reserved_keyword(yytext); } |
| "elif" { thrift_reserved_keyword(yytext); } |
| "else" { thrift_reserved_keyword(yytext); } |
| "elseif" { thrift_reserved_keyword(yytext); } |
| "elsif" { thrift_reserved_keyword(yytext); } |
| "end" { thrift_reserved_keyword(yytext); } |
| "enddeclare" { thrift_reserved_keyword(yytext); } |
| "endfor" { thrift_reserved_keyword(yytext); } |
| "endforeach" { thrift_reserved_keyword(yytext); } |
| "endif" { thrift_reserved_keyword(yytext); } |
| "endswitch" { thrift_reserved_keyword(yytext); } |
| "endwhile" { thrift_reserved_keyword(yytext); } |
| "ensure" { thrift_reserved_keyword(yytext); } |
| "except" { thrift_reserved_keyword(yytext); } |
| "exec" { thrift_reserved_keyword(yytext); } |
| "false" { thrift_reserved_keyword(yytext); } |
| "finally" { thrift_reserved_keyword(yytext); } |
| "float" { thrift_reserved_keyword(yytext); } |
| "for" { thrift_reserved_keyword(yytext); } |
| "foreach" { thrift_reserved_keyword(yytext); } |
| "function" { thrift_reserved_keyword(yytext); } |
| "global" { thrift_reserved_keyword(yytext); } |
| "goto" { thrift_reserved_keyword(yytext); } |
| "if" { thrift_reserved_keyword(yytext); } |
| "implements" { thrift_reserved_keyword(yytext); } |
| "import" { thrift_reserved_keyword(yytext); } |
| "in" { thrift_reserved_keyword(yytext); } |
| "inline" { thrift_reserved_keyword(yytext); } |
| "instanceof" { thrift_reserved_keyword(yytext); } |
| "interface" { thrift_reserved_keyword(yytext); } |
| "is" { thrift_reserved_keyword(yytext); } |
| "lambda" { thrift_reserved_keyword(yytext); } |
| "module" { thrift_reserved_keyword(yytext); } |
| "native" { thrift_reserved_keyword(yytext); } |
| "new" { thrift_reserved_keyword(yytext); } |
| "next" { thrift_reserved_keyword(yytext); } |
| "nil" { thrift_reserved_keyword(yytext); } |
| "not" { thrift_reserved_keyword(yytext); } |
| "or" { thrift_reserved_keyword(yytext); } |
| "pass" { thrift_reserved_keyword(yytext); } |
| "public" { thrift_reserved_keyword(yytext); } |
| "print" { thrift_reserved_keyword(yytext); } |
| "private" { thrift_reserved_keyword(yytext); } |
| "protected" { thrift_reserved_keyword(yytext); } |
| "public" { thrift_reserved_keyword(yytext); } |
| "raise" { thrift_reserved_keyword(yytext); } |
| "redo" { thrift_reserved_keyword(yytext); } |
| "rescue" { thrift_reserved_keyword(yytext); } |
| "retry" { thrift_reserved_keyword(yytext); } |
| "register" { thrift_reserved_keyword(yytext); } |
| "return" { thrift_reserved_keyword(yytext); } |
| "self" { thrift_reserved_keyword(yytext); } |
| "sizeof" { thrift_reserved_keyword(yytext); } |
| "static" { thrift_reserved_keyword(yytext); } |
| "super" { thrift_reserved_keyword(yytext); } |
| "switch" { thrift_reserved_keyword(yytext); } |
| "synchronized" { thrift_reserved_keyword(yytext); } |
| "then" { thrift_reserved_keyword(yytext); } |
| "this" { thrift_reserved_keyword(yytext); } |
| "throw" { thrift_reserved_keyword(yytext); } |
| "transient" { thrift_reserved_keyword(yytext); } |
| "true" { thrift_reserved_keyword(yytext); } |
| "try" { thrift_reserved_keyword(yytext); } |
| "undef" { thrift_reserved_keyword(yytext); } |
| "union" { thrift_reserved_keyword(yytext); } |
| "unless" { thrift_reserved_keyword(yytext); } |
| "unsigned" { thrift_reserved_keyword(yytext); } |
| "until" { thrift_reserved_keyword(yytext); } |
| "use" { thrift_reserved_keyword(yytext); } |
| "var" { thrift_reserved_keyword(yytext); } |
| "virtual" { thrift_reserved_keyword(yytext); } |
| "volatile" { thrift_reserved_keyword(yytext); } |
| "when" { thrift_reserved_keyword(yytext); } |
| "while" { thrift_reserved_keyword(yytext); } |
| "with" { thrift_reserved_keyword(yytext); } |
| "xor" { thrift_reserved_keyword(yytext); } |
| "yield" { thrift_reserved_keyword(yytext); } |
| |
| {intconstant} { |
| errno = 0; |
| yylval.iconst = strtoll(yytext, NULL, 10); |
| if (errno == ERANGE) { |
| integer_overflow(yytext); |
| } |
| return tok_int_constant; |
| } |
| |
| {hexconstant} { |
| errno = 0; |
| yylval.iconst = strtoll(yytext+2, NULL, 16); |
| if (errno == ERANGE) { |
| integer_overflow(yytext); |
| } |
| return tok_int_constant; |
| } |
| |
| {dubconstant} { |
| yylval.dconst = atof(yytext); |
| return tok_dub_constant; |
| } |
| |
| {identifier} { |
| yylval.id = strdup(yytext); |
| return tok_identifier; |
| } |
| |
| {st_identifier} { |
| yylval.id = strdup(yytext); |
| return tok_st_identifier; |
| } |
| |
| {literal_begin} { |
| char mark = yytext[0]; |
| std::string result; |
| for(;;) |
| { |
| int ch = yyinput(); |
| switch (ch) { |
| case EOF: |
| yyerror("End of file while read string at %d\n", yylineno); |
| exit(1); |
| case '\n': |
| yyerror("End of line while read string at %d\n", yylineno - 1); |
| exit(1); |
| case '\\': |
| ch = yyinput(); |
| switch (ch) { |
| case 'r': |
| result.push_back('\r'); |
| continue; |
| case 'n': |
| result.push_back('\n'); |
| continue; |
| case 't': |
| result.push_back('\t'); |
| continue; |
| case '"': |
| result.push_back('"'); |
| continue; |
| case '\'': |
| result.push_back('\''); |
| continue; |
| case '\\': |
| result.push_back('\\'); |
| continue; |
| default: |
| yyerror("Bad escape character\n"); |
| return -1; |
| } |
| break; |
| default: |
| if (ch == mark) { |
| yylval.id = strdup(result.c_str()); |
| return tok_literal; |
| } else { |
| result.push_back(ch); |
| } |
| } |
| } |
| } |
| |
| |
| {doctext} { |
| /* This does not show up in the parse tree. */ |
| /* Rather, the parser will grab it out of the global. */ |
| if (g_parse_mode == PROGRAM) { |
| clear_doctext(); |
| g_doctext = strdup(yytext + 3); |
| g_doctext[strlen(g_doctext) - 2] = '\0'; |
| g_doctext = clean_up_doctext(g_doctext); |
| g_doctext_lineno = yylineno; |
| } |
| } |
| |
| |
| . { |
| /* Catch-all to let us catch "*" in the parser. */ |
| return (int) yytext[0]; |
| } |
| |
| %% |
| |
| /* vim: filetype=lex |
| */ |