MySQL++ Reference Manual

MySQL++ SSQLS v2 Translator: parsev2.h Source File

MySQL++ SSQLS v2 Translator 3.2.4

parsev2.h
1 /***********************************************************************
2 ssx/parsev2.h - Declares the SSQLS v2 language parsing related classes.
3
4 Copyright (c) 2009 by Warren Young and (c) 2009-2010 by Educational
5 Technology Resources, Inc. Others may also hold copyrights on code
6 in this file. See the CREDITS.txt file in the top directory of the
7 distribution for details.
8
9 This file is part of MySQL++.
10
11 MySQL++ is free software; you can redistribute it and/or modify it
12 under the terms of the GNU Lesser General Public License as published
13 by the Free Software Foundation; either version 2.1 of the License, or
14 (at your option) any later version.
15
16 MySQL++ is distributed in the hope that it will be useful, but WITHOUT
17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
19 License for more details.
20
21 You should have received a copy of the GNU Lesser General Public
22 License along with MySQL++; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
24 USA
25 ***********************************************************************/
26
27 #if !defined(MYSQLPP_SSX_PARSEV2_H)
28 #define MYSQLPP_SSX_PARSEV2_H
29
30 #include <exceptions.h>
31
32 #include <cassert>
33 #include <fstream>
34 #include <string>
35 #include <vector>
36
41 class ParseV2
42 {
43 public:
45 typedef std::vector<std::string> StringList;
46
50 typedef StringList::const_iterator StringListIt;
51
57 class File
58 {
59 public:
62 File(const char* file_name);
63
65 void error(const std::string& msg) const;
66
68 void error(const std::ostringstream& msg) const
69 { error(msg.str()); }
70
72 const char* name() const { return file_name_.c_str(); }
73
76 void parse_error(const std::string& msg) const;
77
79 void parse_error(const std::ostringstream& msg) const
80 { error(msg.str()); }
81
92 bool read_line(std::string& line, bool& subdirective);
93
94 private:
104 void add_directory_to_search_path(const char* filepath);
105
108 void split_path(StringList& parts, const std::string& path) const;
109
111 std::ifstream ifs_;
112
116 std::string file_name_;
117
121 size_t line_number_;
122
131 static StringList search_path_;
132 };
133
136 class Line
137 {
138 public:
140 virtual ~Line() { }
141
152 static Line* parse(const StringList& tl, bool subdirective,
153 const File& file);
154
157 virtual void print(std::ostream& os) const = 0;
158
159 protected:
161 Line() { }
162 };
163
167 typedef std::vector<Line*> LineList;
168
173 typedef LineList::const_iterator LineListIt;
174
176 class Field : public Line
177 {
178 public:
192 Field(const std::string& name, const std::string& type,
193 bool is_unsigned = false, bool is_null = false,
194 bool is_autoinc = false, bool is_key = false,
195 const std::string& alias = 0) :
196 name_(name),
197 type_(type),
198 is_autoinc_(is_autoinc),
199 is_key_(is_key),
200 is_null_(is_null),
201 is_unsigned_(is_unsigned),
202 alias_(alias)
203 {
204 }
205
213 static Field* parse(const StringList& tl, bool subdirective,
214 const File& file);
215
218 void print(std::ostream& os) const;
219
229 class Type
230 {
231 public:
245 enum Value {
246 ft_tinyint,
247 ft_smallint,
248 ft_mediumint,
249 ft_bigint,
250 ft_float,
251 ft_double,
252 ft_string,
253 ft_blob,
254 ft_date,
255 ft_datetime,
256 ft_time,
257 ft_set
258 };
259
266 Type(const std::string& s);
267
269 Type(Value v) :
270 value_(v)
271 {
272 }
273
276 void print(std::ostream& os) const;
277
279 operator Value() const { return value_; }
280
282 bool operator ==(const Type& rhs) const
283 { return value_ == rhs.value_; }
284
285 private:
286 Value value_;
287 };
288
289 private:
290 std::string name_;
291 Type type_;
292 bool is_autoinc_;
293 bool is_key_;
294 bool is_null_;
295 bool is_unsigned_;
296 std::string alias_;
297 };
298
300 class Include : public Line
301 {
302 public:
308 Include(const char* file_name) :
309 pp2_(new ParseV2(file_name))
310 {
311 }
312
314 ~Include() { pp2_->clear(); delete pp2_; }
315
317 // sub-parse's LineList
318 LineListIt begin() const { return pp2_->begin(); }
319
322 LineListIt end() const { return pp2_->end(); }
323
331 static Include* parse(const StringList& tl, bool subdirective,
332 const File& file);
333
334 private:
335 // Never called. Include directives don't appear in the parse
336 // list; the included file's contents appear in its place
337 // instead. Since this method only exists to test parsing
338 // behavior, we can't be called.
339 void print(std::ostream&) const { assert(0); }
340
343 ParseV2* pp2_;
344 };
345
351 class Option : public Line
352 {
353 public:
355 virtual ~Option() { }
356
364 static Option* parse(const StringList& tl, bool subdirective,
365 const File& file);
366
367 protected:
371 Option(const std::string& value) :
372 value_(value)
373 {
374 }
375
386 static bool parse_bool(const std::string& value);
387
395 const char* value() const { return value_.c_str(); }
396
397 private:
398 // The option's raw value string
399 std::string value_;
400 };
401
403 class AccessorStyleOption : public Option
404 {
405 public:
407 AccessorStyleOption(const std::string& value, const File& file) :
408 Option(value),
409 type_(AccessorStyleOption::parse_type(value, file))
410 {
411 }
412
415 void print(std::ostream& os) const;
416
417 private:
424 enum Type {
425 unknown,
426 camel_case_lower,
427 camel_case_upper,
428 stroustrup,
429 overloaded
430 };
431
435 static Type parse_type(const std::string& style,
436 const File& file);
437
439 Type type_;
440 };
441
443 class ExceptionOnSchemaMismatchOption : public Option
444 {
445 public:
447 ExceptionOnSchemaMismatchOption(const std::string& value) :
448 Option(value),
449 throw_(Option::parse_bool(value))
450 {
451 }
452
455 operator bool() const { return throw_; }
456
459 void print(std::ostream& os) const;
460
461 private:
462 bool throw_;
463 };
464
466 class HeaderExtensionOption : public Option
467 {
468 public:
470 HeaderExtensionOption(const std::string& value) :
471 Option(value)
472 {
473 }
474
476 const char* extension() const { return value(); }
477
480 void print(std::ostream& os) const;
481 };
482
484 class ImplementationExtensionOption : public Option
485 {
486 public:
488 ImplementationExtensionOption(const std::string& value) :
489 Option(value)
490 {
491 }
492
495 const char* extension() const { return value(); }
496
499 void print(std::ostream& os) const;
500 };
501
503 class Table : public Line
504 {
505 public:
512 Table(const std::string& name, const std::string& alias,
513 const std::string& filebase);
514
522 static Table* parse(const StringList& tl, bool subdirective,
523 const File& file);
524
527 void print(std::ostream& os) const;
528
529 private:
530 std::string name_, alias_, filebase_;
531 };
532
535 class FileException : public mysqlpp::Exception
536 {
537 public:
542 FileException(const std::string& what) : Exception(what) { }
543 };
544
547 class ParseException : public mysqlpp::Exception
548 {
549 public:
555 ParseException(const std::string& what,
556 const std::string& file_name, size_t line) :
557 Exception(what),
558 file_name_(file_name),
559 line_(line)
560 {
561 }
562
564 ~ParseException() throw() { }
565
567 const char* file_name() const { return file_name_.c_str(); }
568
570 size_t line() const { return line_; }
571
572 private:
573 std::string file_name_;
574 size_t line_;
575 };
576
588 ParseV2(const char* file_name);
589
591 ~ParseV2()
592 {
593 for (LineListIt it = lines_.begin(); it != lines_.end(); ++it) {
594 delete *it;
595 }
596 }
597
599 LineListIt begin() const { return lines_.begin(); }
600
605 void clear() { lines_.clear(); }
606
608 LineListIt end() const { return lines_.end(); }
609
610 private:
612 void tokenize(StringList& tokens, const std::string& line) const;
613
615 File file_;
616
627 LineList lines_;
628 };
629
635 std::ostream& operator<<(std::ostream& os, const ParseV2::Line& line);
636
637 #endif // !defined(MYSQLPP_SSX_PARSEV2_H)
ParseV2::HeaderExtensionOption::HeaderExtensionOption
HeaderExtensionOption(const std::string &value)
Constructor.
Definition: parsev2.h:470
ParseV2::Field::Type::ft_set
SET.
Definition: parsev2.h:257
ParseV2::end
LineListIt end() const
Get an iterator pointing just past the end of our LineList.
Definition: parsev2.h:608
ParseV2::Field::Type::Value
Value
Known SQL field types.
Definition: parsev2.h:245
ParseV2::Option::~Option
virtual ~Option()
Virtual dtor, since this is a base class.
Definition: parsev2.h:355
ParseV2::Field::Field
Field(const std::string &name, const std::string &type, bool is_unsigned=false, bool is_null=false, bool is_autoinc=false, bool is_key=false, const std::string &alias=0)
Holds information about a SQL field declared in the SSQLS v2 language.
Definition: parsev2.h:192
ParseV2::Field::Type::ft_float
FLOAT, FLOAT4, FLOAT8.
Definition: parsev2.h:250
ParseV2::ImplementationExtensionOption
&#39;option implementation_extension&#39; directive line
Definition: parsev2.h:484
ParseV2::File::name
const char * name() const
Return the file&#39;s name.
Definition: parsev2.h:72
ParseV2::ExceptionOnSchemaMismatchOption
&#39;option exception_on_schema_mismatch&#39; directive line
Definition: parsev2.h:443
ParseV2::Include
&#39;include&#39; directive line
Definition: parsev2.h:300
ParseV2::AccessorStyleOption::AccessorStyleOption
AccessorStyleOption(const std::string &value, const File &file)
Constructor.
Definition: parsev2.h:407
ParseV2::Field::Type::ft_time
TIME.
Definition: parsev2.h:256
ParseV2::Field::Type
A smart enum for converting SQL type strings to one of a relatively few types we directly support...
Definition: parsev2.h:229
ParseV2::ParseException
Exception object thrown by File::error() to report an SSQLS v2 parsing error.
Definition: parsev2.h:547
ParseV2::Field::Type::Type
Type(const std::string &s)
Constructor.
Definition: parsev2.cpp:251
ParseV2::ParseException::file_name
const char * file_name() const
Get name of file where error occurred.
Definition: parsev2.h:567
ParseV2::Include::end
LineListIt end() const
Get an iterator pointing to just past the end of the sub-parse&#39;s LineList.
Definition: parsev2.h:322
ParseV2::Include::~Include
~Include()
Destructor.
Definition: parsev2.h:314
ParseV2::ImplementationExtensionOption::extension
const char * extension() const
Return the extension used for C++ implementation files we emit.
Definition: parsev2.h:495
ParseV2::Include::begin
LineListIt begin() const
Get an iterator pointing to the start of the.
Definition: parsev2.h:318
ParseV2::Line::parse
static Line * parse(const StringList &tl, bool subdirective, const File &file)
Virtual ctor, creating one of our subclass objects based on what we&#39;re passed.
Definition: parsev2.cpp:485
ParseV2::Line::~Line
virtual ~Line()
Virtual dtor, since this is a base class.
Definition: parsev2.h:140
ParseV2::HeaderExtensionOption::print
void print(std::ostream &os) const
Print the option description out to a stream in SSQLS v2 form.
Definition: parsev2.cpp:452
ParseV2::Option::parse_bool
static bool parse_bool(const std::string &value)
Convert a string expressing a boolean value to a bool.
Definition: parsev2.cpp:575
ParseV2::LineList
std::vector< Line * > LineList
A list of pointers to Line objects.
Definition: parsev2.h:167
ParseV2::Field::Type::print
void print(std::ostream &os) const
Print type description out to a stream in SSQLS v2 form.
Definition: parsev2.cpp:305
ParseV2::FileException
Exception object thrown to indicate a file I/O error.
Definition: parsev2.h:535
ParseV2::Field::Type::operator==
bool operator==(const Type &rhs) const
Equality operator.
Definition: parsev2.h:282
ParseV2::ExceptionOnSchemaMismatchOption::ExceptionOnSchemaMismatchOption
ExceptionOnSchemaMismatchOption(const std::string &value)
Constructor.
Definition: parsev2.h:447
ParseV2::Line
Base class for parsed SSQLS v2 declaration lines.
Definition: parsev2.h:136
ParseV2::AccessorStyleOption
&#39;option accessor_style&#39; directive line
Definition: parsev2.h:403
ParseV2::ImplementationExtensionOption::print
void print(std::ostream &os) const
Print the option description out to a stream in SSQLS v2 form.
Definition: parsev2.cpp:459
ParseV2::Field
&#39;field&#39; directive line
Definition: parsev2.h:176
ParseV2::File::parse_error
void parse_error(const std::ostringstream &msg) const
Definition: parsev2.h:79
ParseV2::Option::parse
static Option * parse(const StringList &tl, bool subdirective, const File &file)
Attempt to create an Option object from information in the passed StringList.
Definition: parsev2.cpp:536
ParseV2::Field::Type::Type
Type(Value v)
Copy constructor.
Definition: parsev2.h:269
ParseV2::Include::Include
Include(const char *file_name)
Given the name of another SSQLS v2 file, load it up and parse it. Its contents will appear transparen...
Definition: parsev2.h:308
ParseV2::~ParseV2
~ParseV2()
Destructor.
Definition: parsev2.h:591
ParseV2::ParseException::~ParseException
~ParseException()
Destructor.
Definition: parsev2.h:564
ParseV2::File::error
void error(const std::ostringstream &msg) const
Definition: parsev2.h:68
ParseV2::AccessorStyleOption::print
void print(std::ostream &os) const
Print the option description out to a stream in SSQLS v2 form.
Definition: parsev2.cpp:122
ParseV2::HeaderExtensionOption
&#39;option header_extension&#39; directive line
Definition: parsev2.h:466
ParseV2::FileException::FileException
FileException(const std::string &what)
Constructor.
Definition: parsev2.h:542
ParseV2::Field::Type::ft_double
DOUBLE, DECIMAL, FIXED, NUMERIC.
Definition: parsev2.h:251
ParseV2::Field::Type::ft_mediumint
INT, MEDIUMINT, INT3, INT4.
Definition: parsev2.h:248
ParseV2::Include::parse
static Include * parse(const StringList &tl, bool subdirective, const File &file)
Attempt to create an Include object from information in the passed StringList.
Definition: parsev2.cpp:466
ParseV2::Line::Line
Line()
Protected ctor, to prevent instantiation.
Definition: parsev2.h:161
ParseV2::File::parse_error
void parse_error(const std::string &msg) const
Throw a ParseException containing the given message and our stored info about the file name and curre...
Definition: parsev2.cpp:399
ParseV2::Option::value
const char * value() const
Return the option&#39;s value in string form, unmodified from the original parse.
Definition: parsev2.h:395
ParseV2
Parses SSQLS v2 documents and holds the parse result.
Definition: parsev2.h:41
ParseV2::Table::parse
static Table * parse(const StringList &tl, bool subdirective, const File &file)
Attempt to create a Table object from information in the passed StringList.
Definition: parsev2.cpp:605
ParseV2::begin
LineListIt begin() const
Get an iterator pointing to the start of our LineList.
Definition: parsev2.h:599
ParseV2::File
Holds information about an SSQLS v2 file we&#39;re parsing.
Definition: parsev2.h:57
ParseV2::Field::Type::ft_bigint
BIGINT, INT8.
Definition: parsev2.h:249
ParseV2::ParseException::ParseException
ParseException(const std::string &what, const std::string &file_name, size_t line)
Constructor.
Definition: parsev2.h:555
ParseV2::HeaderExtensionOption::extension
const char * extension() const
Return the extension used for C++ headers we emit.
Definition: parsev2.h:476
ParseV2::Option
Base class for known SSQLS v2 &#39;option&#39; directives.
Definition: parsev2.h:351
ParseV2::ParseV2
ParseV2(const char *file_name)
Constructor.
Definition: parsev2.cpp:52
ParseV2::StringList
std::vector< std::string > StringList
List of tokens as returned by boost::algorithm::split.
Definition: parsev2.h:45
ParseV2::StringListIt
StringList::const_iterator StringListIt
Iterator into a StringList.
Definition: parsev2.h:50
ParseV2::Field::Type::ft_smallint
SMALLINT, INT2.
Definition: parsev2.h:247
ParseV2::Field::Type::ft_date
DATE.
Definition: parsev2.h:254
ParseV2::File::error
void error(const std::string &msg) const
Throw a FileException containing the given message.
Definition: parsev2.cpp:392
ParseV2::Field::parse
static Field * parse(const StringList &tl, bool subdirective, const File &file)
Attempt to create a Field object from information in the passed StringList.
Definition: parsev2.cpp:170
ParseV2::Line::print
virtual void print(std::ostream &os) const =0
Print line&#39;s contents out to a stream in SSQLS v2 form.
ParseV2::ExceptionOnSchemaMismatchOption::print
void print(std::ostream &os) const
Print the option description out to a stream in SSQLS v2 form.
Definition: parsev2.cpp:162
ParseV2::Field::Type::ft_tinyint
TINYINT, INT1, BOOL.
Definition: parsev2.h:246
ParseV2::clear
void clear()
Dump our line list.
Definition: parsev2.h:605
ParseV2::ParseException::line
size_t line() const
Get line number where error occurred.
Definition: parsev2.h:570
ParseV2::Field::Type::ft_string
*CHAR, ENUM, *TEXT
Definition: parsev2.h:252
ParseV2::File::read_line
bool read_line(std::string &line, bool &subdirective)
Read a line in from a file.
Definition: parsev2.cpp:406
ParseV2::LineListIt
LineList::const_iterator LineListIt
Iterator into a LineList.
Definition: parsev2.h:173
ParseV2::File::File
File(const char *file_name)
Open a file for reading, using the search path to file the file if the direct path isn&#39;t readable...
Definition: parsev2.cpp:325
ParseV2::Table
&#39;table&#39; directive line
Definition: parsev2.h:503
ParseV2::Option::Option
Option(const std::string &value)
Protected ctor, so we cannot be directly instantiated.
Definition: parsev2.h:371
ParseV2::Field::print
void print(std::ostream &os) const
Print field description out to a stream in SSQLS v2 form.
Definition: parsev2.cpp:239
ParseV2::ImplementationExtensionOption::ImplementationExtensionOption
ImplementationExtensionOption(const std::string &value)
Constructor.
Definition: parsev2.h:488
ParseV2::Table::print
void print(std::ostream &os) const
Print the table description out to a stream in SSQLS v2 form.
Definition: parsev2.cpp:645
ParseV2::Field::Type::ft_datetime
DATETIME, TIMESTAMP.
Definition: parsev2.h:255
ParseV2::Table::Table
Table(const std::string &name, const std::string &alias, const std::string &filebase)
Constructor.
Definition: parsev2.cpp:595
ParseV2::Field::Type::ft_blob
*BLOB, VARBINARY
Definition: parsev2.h:253