/usr/include/ace/Tokenizer_T.h is in libace-dev 6.2.8+dfsg-1.
This file is owned by root:root, with mode 0o644.
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//=============================================================================
/**
* @file Tokenizer_T.h
*
* $Id: Tokenizer_T.h 88793 2010-02-01 17:50:34Z cleeland $
*
* @author Douglas C. Schmidt (schmidt@cs.wustl.edu)
* @author Nanbor Wang <nanbor@cs.wustl.edu>
*/
//=============================================================================
#ifndef ACE_TOKENIZER_T_H
#define ACE_TOKENIZER_T_H
#include /**/ "ace/pre.h"
#include "ace/Global_Macros.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
/**
* @class ACE_Tokenizer_T
*
* @brief Tokenizer
*
* Tokenizes a buffer. Allows application to set delimiters and
* preserve designators. Does not allow special characters, yet
* (e.g., printf ("\"like a quoted string\"")).
*/
template <class ACE_CHAR_T>
class ACE_Tokenizer_T
{
public:
/**
* \a buffer will be parsed. Notice that ACE_Tokenizer_T will modify
* \a buffer if you use <code> delimiter_replace </code> or <code>
* preserve_designators </code> to do character substitution.
* @note You should NOT pass a constant string or string literal
* to this constructor, since ACE_Tokenizer_T will try to modify
* the string.
* \sa preserve_designators
* \sa preserve_designators
*/
ACE_Tokenizer_T (ACE_CHAR_T *buffer);
/**
* \a d is a delimiter.
* \return Returns 0 on success, -1 if there is no memory left.
*
* <B>Example:</B>
* \verbatim
char buf[30];
ACE_OS::strcpy(buf, "William/Joseph/Hagins");
ACE_Tokenizer_T tok (buf);
tok.delimiter ('/');
for (char *p = tok.next (); p; p = tok.next ())
cout << p << endl;
\endverbatim
*
* This will print out:
* \verbatim
William/Joseph/Hagins
Joseph/Hagins
Hagins \endverbatim
*/
int delimiter (ACE_CHAR_T d);
/**
* \a d is a delimiter and, when found, will be replaced by
* \a replacement.
* \return 0 on success, -1 if there is no memory left.
*
* <B>Example:</B>
* \verbatim
char buf[30];
ACE_OS::strcpy(buf, "William/Joseph/Hagins");
ACE_Tokenizer tok (buf);
tok.delimiter_replace ('/', 0);
for (char *p = tok.next (); p; p = tok.next ())
cout << p << endl;
\endverbatim
*
* This will print out:
* \verbatim
William
Joseph
Hagins \endverbatim
*/
int delimiter_replace (ACE_CHAR_T d, ACE_CHAR_T replacement);
/**
* Extract string between a pair of designator characters.
* For instance, quotes, or '(' and ')'.
* \a start specifies the begin designator.
* \a stop specifies the end designator.
* \a strip If \a strip == 1, then the preserve
* designators will be stripped from the tokens returned by next.
* \return 0 on success, -1 if there is no memory left.
*
* <B>Example with strip = 0:</B>
* \verbatim
char buf[30];
ACE_OS::strcpy(buf, "William(Joseph)Hagins");
ACE_Tokenizer tok (buf);
tok.preserve_designators ('(', ')', 0);
for (char *p = tok.next (); p; p = tok.next ())
cout << p << endl;
\endverbatim
*
* This will print out:
* \verbatim
William(Joseph)Hagins
(Joseph)Hagins
)Hagins \endverbatim
*
* <B>Example with strip = 1:</B>
* \verbatim
char buf[30];
ACE_OS::strcpy(buf, "William(Joseph)Hagins");
ACE_Tokenizer tok (buf);
tok.preserve_designators ('(', ')', 1);
for (char *p = tok.next (); p; p = tok.next ())
cout << p << endl;
\endverbatim
*
* This will print out:
* \verbatim
William
Joseph
Hagins \endverbatim
*/
int preserve_designators (ACE_CHAR_T start, ACE_CHAR_T stop, int strip=1);
/// Returns the next token.
ACE_CHAR_T *next (void);
enum {
MAX_DELIMITERS=16,
MAX_PRESERVES=16
};
protected:
/// Returns 1 if @a d is a delimiter, 0 otherwise. If @a d should be
/// replaced with @a r, @a replace is set to 1, otherwise 0.
int is_delimiter (ACE_CHAR_T d, int &replace, ACE_CHAR_T &r);
/**
* If @a start is a start preserve designator, returns 1 and sets
* @a stop to the stop designator. Returns 0 if @a start is not a
* preserve designator.
*/
int is_preserve_designator (ACE_CHAR_T start, ACE_CHAR_T &stop, int &strip);
ACE_CHAR_T *buffer_;
int index_;
/**
* @class Preserve_Entry
*
* @brief Preserve Entry
*
* Defines a set of characters that designate an area that
* should not be parsed, but should be treated as a complete
* token. For instance, in: (this is a preserve region), start
* would be a left paren -(- and stop would be a right paren
* -)-. The strip determines whether the designators should be
* removed from the token.
*/
class Preserve_Entry
{
public:
/**
* E.g., "(".
* E.g., ")".
* Whether the designators should be removed from the token.
*/
ACE_CHAR_T start_;
ACE_CHAR_T stop_;
int strip_;
};
/// The application can specify MAX_PRESERVES preserve designators.
Preserve_Entry preserves_[MAX_PRESERVES];
/// Pointer to the next free spot in preserves_.
int preserves_index_;
/**
* @class Delimiter_Entry
*
* @brief Delimiter Entry
*
* Describes a delimiter for the tokenizer.
*/
class Delimiter_Entry
{
public:
/**
* Most commonly a space ' '.
* What occurrences of delimiter_ should be replaced with.
* Whether replacement_ should be used. This should be replaced
* with a technique that sets replacement_ = delimiter by
* default. I'll do that next iteration.
*/
ACE_CHAR_T delimiter_;
ACE_CHAR_T replacement_;
int replace_;
};
/// The tokenizer allows MAX_DELIMITERS number of delimiters.
Delimiter_Entry delimiters_[MAX_DELIMITERS];
/// Pointer to the next free space in delimiters_.
int delimiter_index_;
};
typedef ACE_Tokenizer_T <ACE_TCHAR> ACE_Tokenizer;
ACE_END_VERSIONED_NAMESPACE_DECL
#if defined (ACE_TEMPLATES_REQUIRE_SOURCE)
#include "ace/Tokenizer_T.cpp"
#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */
#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA)
#pragma implementation ("Tokenizer_T.cpp")
#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */
#include /**/ "ace/post.h"
#endif /* ACE_TOKENIZER_T_H */
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