Vcsn  2.4
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vcsn::string_letters Class Reference

Represent alphabets whose "letters" are strings. More...

#include <string.hh>

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Public Types

using letter_t = symbol
 Internalize the letters to save trees. More...
 
using word_t = std::vector< letter_t >
 

Public Member Functions

word_t to_word (const letter_t l) const
 
const word_tto_word (const word_t &l) const
 
word_t mul (const letter_t l, const letter_t r) const
 
word_t mul (const word_t &l, const letter_t r) const
 
word_t mul (const letter_t l, const word_t &r) const
 
word_t mul (const word_t &l, const word_t &r) const
 
word_t delimit (const word_t &w) const
 Add the special character first and last. More...
 
word_t undelimit (const word_t &w) const
 Remove first and last characters, that must be "special". More...
 
word_t transpose (const word_t &w) const
 
letter_t transpose (letter_t l) const
 
bool is_letter (const letter_t) const
 
bool is_letter (const word_t &w) const
 
std::ostream & print (const letter_t l, std::ostream &o, const format &fmt={}) const
 
std::ostream & print (const word_t &w, std::ostream &o, const format &fmt={}) const
 

Static Public Member Functions

static symbol sname ()
 
static word_t empty_word ()
 
static bool is_empty_word (const word_t &w)
 
static bool equal (const letter_t l, const letter_t r)
 Whether l == r. More...
 
static bool equal (const word_t &l, const word_t &r)
 Whether l == r. More...
 
static bool less (const letter_t l, const letter_t r)
 Whether l < r. More...
 
static bool less (const word_t &l, const word_t &r)
 Whether l < r. More...
 
static letter_t one_letter ()
 The reserved letter used to forge the "one" label (the unit, the identity). More...
 
static letter_t get_letter (std::istream &i, bool quoted=true)
 Read one letter from i. More...
 
template<typename T = letter_t>
static T special ()
 Special character, used to label transitions from pre() and to post(). More...
 

Static Private Member Functions

static letter_t special_letter ()
 The reserved letter used to forge the labels for initial and final transitions. More...
 

Detailed Description

Represent alphabets whose "letters" are strings.

This is useful for linguistics where sometimes letters are words ("it is beautiful" has three letters: "it" "is" and "beautiful") but also to deal with UTF-8, since graphemes then have various widths.

Definition at line 20 of file string.hh.

Member Typedef Documentation

Internalize the letters to save trees.

Definition at line 24 of file string.hh.

using vcsn::string_letters::word_t = std::vector<letter_t>

Definition at line 25 of file string.hh.

Member Function Documentation

word_t vcsn::string_letters::delimit ( const word_t w) const
inline

Add the special character first and last.

Definition at line 109 of file string.hh.

References mul(), and special_letter().

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static word_t vcsn::string_letters::empty_word ( )
inlinestatic

Definition at line 125 of file string.hh.

static bool vcsn::string_letters::equal ( const letter_t  l,
const letter_t  r 
)
inlinestatic

Whether l == r.

Definition at line 150 of file string.hh.

static bool vcsn::string_letters::equal ( const word_t l,
const word_t r 
)
inlinestatic

Whether l == r.

Definition at line 156 of file string.hh.

static letter_t vcsn::string_letters::get_letter ( std::istream &  i,
bool  quoted = true 
)
inlinestatic

Read one letter from i.

Either a single char, or a "letter" enclosed in single-quotes.

Definition at line 200 of file string.hh.

References vcsn::get_char(), vcsn::res, and sname().

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static bool vcsn::string_letters::is_empty_word ( const word_t w)
inlinestatic

Definition at line 131 of file string.hh.

Referenced by mul().

bool vcsn::string_letters::is_letter ( const letter_t  ) const
inline

Definition at line 174 of file string.hh.

bool vcsn::string_letters::is_letter ( const word_t w) const
inline

Definition at line 180 of file string.hh.

static bool vcsn::string_letters::less ( const letter_t  l,
const letter_t  r 
)
inlinestatic

Whether l < r.

Definition at line 162 of file string.hh.

static bool vcsn::string_letters::less ( const word_t l,
const word_t r 
)
inlinestatic

Whether l < r.

Definition at line 168 of file string.hh.

word_t vcsn::string_letters::mul ( const letter_t  l,
const letter_t  r 
) const
inline

Definition at line 46 of file string.hh.

References one_letter().

Referenced by delimit().

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word_t vcsn::string_letters::mul ( const word_t l,
const letter_t  r 
) const
inline

Definition at line 62 of file string.hh.

References one_letter(), and vcsn::res.

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word_t vcsn::string_letters::mul ( const letter_t  l,
const word_t r 
) const
inline

Definition at line 77 of file string.hh.

References one_letter(), and vcsn::res.

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word_t vcsn::string_letters::mul ( const word_t l,
const word_t r 
) const
inline

Definition at line 92 of file string.hh.

References is_empty_word(), and vcsn::res.

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static letter_t vcsn::string_letters::one_letter ( )
inlinestatic

The reserved letter used to forge the "one" label (the unit, the identity).

Definition at line 187 of file string.hh.

Referenced by mul().

std::ostream& vcsn::string_letters::print ( const letter_t  l,
std::ostream &  o,
const format fmt = {} 
) const
inline

Definition at line 232 of file string.hh.

std::ostream& vcsn::string_letters::print ( const word_t w,
std::ostream &  o,
const format fmt = {} 
) const
inline

Definition at line 261 of file string.hh.

static symbol vcsn::string_letters::sname ( )
inlinestatic

Definition at line 27 of file string.hh.

References vcsn::res.

Referenced by get_letter().

template<typename T = letter_t>
static T vcsn::string_letters::special ( )
static

Special character, used to label transitions from pre() and to post().

static letter_t vcsn::string_letters::special_letter ( )
inlinestaticprivate

The reserved letter used to forge the labels for initial and final transitions.

Use the public special() interface.

Definition at line 194 of file string.hh.

Referenced by delimit(), vcsn::string_letters::special< string_letters::letter_t >(), vcsn::string_letters::special< string_letters::word_t >(), and undelimit().

word_t vcsn::string_letters::to_word ( const letter_t  l) const
inline

Definition at line 34 of file string.hh.

const word_t& vcsn::string_letters::to_word ( const word_t l) const
inline

Definition at line 40 of file string.hh.

word_t vcsn::string_letters::transpose ( const word_t w) const
inline

Definition at line 137 of file string.hh.

letter_t vcsn::string_letters::transpose ( letter_t  l) const
inline

Definition at line 144 of file string.hh.

word_t vcsn::string_letters::undelimit ( const word_t w) const
inline

Remove first and last characters, that must be "special".

Definition at line 115 of file string.hh.

References special_letter().

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The documentation for this class was generated from the following file: