Parser of snames. More...

Collaboration diagram for vcsn::ast::context_parser:

Public Member Functions
	context_parser (std::istringstream &is)

std::shared_ptr< ast_node >	parse ()
	Accept anything. More...

std::shared_ptr< ast_node >	parse_context ()
	Accept only a valid context. More...

Private Member Functions
void	skip_space_ ()
	Skip white spaces. More...

int	peek_ ()
	The next character, possibly preceded by spaces. More...

char	eat_ (char c)
	Accept this character, possibly preceded by spaces. More...

const std::string &	eat_ (const std::string &s)
	Accept this string, possibly preceded by spaces. More...

void	check_eof_ (std::shared_ptr< ast_node > res)
	We managed to read res in is, check that `is_` is finished. More...

std::string	word_ ()
	The next word in the stream. More...

std::string	parameters_ ()
	The next parameters in the stream. More...

std::shared_ptr< ast_node >	any_ ()
	Accept anything. More...

std::shared_ptr< const genset >	genset_ ()
	An optional generator set in brackets (e.g., `<char_letters(abc)>` or `<char>`). More...

std::shared_ptr< const genset >	genset_ (std::string letter_type)
	A generator set (e.g., `char_letters(abc)` or `char`). More...

std::shared_ptr< context >	context_ ()
	`<LabelSet>, <WeightSet>`. More...

std::shared_ptr< context >	context_ (std::string w)
	`<LabelSet>, <WeightSet>`. More...

std::shared_ptr< ast_node >	labelset_ ()
	`<LabelSet>`. More...

std::shared_ptr< ast_node >	labelset_ (const std::string &ls)
	`<LabelSet>`. More...

std::shared_ptr< ast_node >	weightset_ ()
	`<WeightSet>`. More...

std::shared_ptr< ast_node >	weightset_ (const std::string &ws)
	`<WeightSet>`. More...

std::shared_ptr< automaton >	automaton_ ()
	`<Automaton> "\<" <Context> "\>"`. More...

std::shared_ptr< automaton >	automaton_ (std::string prefix)
	`<Automaton> "\<" <Context> "\>"`. More...

std::shared_ptr< tuple >	tuple_ ()
	`"\<" (<Any> ",")* "\>"`. More...

std::shared_ptr< tupleset >	tupleset_ ()
	`"\<" (<LabelSet> \| <WeightSet> ",")+ "\>"`. More...

std::shared_ptr< expressionset >	expressionset_ ()
	`"expressionset" "\<" <Context> "\>"`, possibly followed by identities. More...

std::shared_ptr< expressionset >	seriesset_ ()
	No optional argument. More...

std::shared_ptr< expansionset >	expansionset_ ()
	`"expansionset" "\<" <Expressionset> "\>"`. More...

std::shared_ptr< polynomialset >	polynomialset_ ()
	`"polynomialset" "\<" <Context> "\>"`. More...

std::shared_ptr< ast_node >	labelset_or_weightset_ ()
	`<LabelSet> \| <WeightSet>` More...

std::shared_ptr< ast_node >	labelset_or_weightset_ (const std::string &w)
	`<LabelSet> \| <WeightSet>` More...

Private Attributes
std::istringstream &	is_
	The stream we are parsing. More...

std::set< std::string >	weightsets_
	The set of terminal weightset names. More...

std::set< std::string >	labelsets_
	The set of weightset names. More...

Detailed Description

Parser of snames.

Definition at line 18 of file context-parser.cc.

Constructor & Destructor Documentation

vcsn::ast::context_parser::context_parser ( std::istringstream & is )

inline

Definition at line 21 of file context-parser.cc.

Member Function Documentation

std::shared_ptr<ast_node> vcsn::ast::context_parser::any_ ( )

inlineprivate

Accept anything.

Definition at line 128 of file context-parser.cc.

References automaton_(), context_(), expansionset_(), expressionset_(), vcsn::has(), labelset_(), labelsets_, parameters_(), peek_(), polynomialset_(), vcsn::res, seriesset_(), tuple_(), tupleset_(), weightset_(), weightsets_, and word_().

Referenced by automaton_(), parse(), and tuple_().

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std::shared_ptr<automaton> vcsn::ast::context_parser::automaton_ ( )

inlineprivate

<Automaton> "\<" <Context> "\>".

Definition at line 302 of file context-parser.cc.

References word_().

Referenced by any_(), and automaton_().

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std::shared_ptr<automaton> vcsn::ast::context_parser::automaton_ ( std::string prefix )

inlineprivate

<Automaton> "\<" <Context> "\>".

Definition at line 308 of file context-parser.cc.

References any_(), automaton_(), context_(), eat_(), expressionset_(), peek_(), vcsn::prefix(), vcsn::res, vcsn::str_escape(), and word_().

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void vcsn::ast::context_parser::check_eof_ ( std::shared_ptr< ast_node > res )

inlineprivate

We managed to read res in is, check that is_ is finished.

Definition at line 72 of file context-parser.cc.

References vcsn::fail_reading(), is_, and peek_().

Referenced by parse(), and parse_context().

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std::shared_ptr<context> vcsn::ast::context_parser::context_ ( )

inlineprivate

<LabelSet>, <WeightSet>.

Definition at line 210 of file context-parser.cc.

References word_().

Referenced by any_(), automaton_(), expressionset_(), parse_context(), polynomialset_(), and seriesset_().

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std::shared_ptr<context> vcsn::ast::context_parser::context_ ( std::string w )

inlineprivate

<LabelSet>, <WeightSet>.

Definition at line 216 of file context-parser.cc.

References eat_(), labelset_(), weightset_(), and word_().

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char vcsn::ast::context_parser::eat_ ( char c )

inlineprivate

Accept this character, possibly preceded by spaces.

Definition at line 57 of file context-parser.cc.

References vcsn::eat(), is_, and skip_space_().

Referenced by automaton_(), context_(), expansionset_(), expressionset_(), genset_(), labelset_(), parameters_(), polynomialset_(), seriesset_(), tuple_(), and tupleset_().

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const std::string& vcsn::ast::context_parser::eat_ ( const std::string & s )

inlineprivate

Accept this string, possibly preceded by spaces.

Definition at line 64 of file context-parser.cc.

References vcsn::eat(), is_, and skip_space_().

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std::shared_ptr<expansionset> vcsn::ast::context_parser::expansionset_ ( )

inlineprivate

"expansionset" "\<" <Expressionset> "\>".

Definition at line 452 of file context-parser.cc.

References eat_(), expressionset_(), and vcsn::res.

Referenced by any_().

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std::shared_ptr<expressionset> vcsn::ast::context_parser::expressionset_ ( )

inlineprivate

"expressionset" "\<" <Context> "\>", possibly followed by identities.

Definition at line 426 of file context-parser.cc.

References context_(), eat_(), vcsn::rat::ids(), is_, and peek_().

Referenced by any_(), automaton_(), expansionset_(), labelset_(), labelset_or_weightset_(), and weightset_().

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std::shared_ptr<const genset> vcsn::ast::context_parser::genset_ ( )

inlineprivate

An optional generator set in brackets (e.g., <char_letters(abc)> or <char>).

Defaults to <char> if the stream does not start with <.

Definition at line 170 of file context-parser.cc.

References eat_(), peek_(), vcsn::res, and word_().

Referenced by labelset_().

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std::shared_ptr<const genset> vcsn::ast::context_parser::genset_ ( std::string letter_type )

inlineprivate

A generator set (e.g., char_letters(abc) or char).

Parameters

letter_type should be char_letter, or char, etc.

Definition at line 185 of file context-parser.cc.

References is_, peek_(), and vcsn::require().

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std::shared_ptr<ast_node> vcsn::ast::context_parser::labelset_ ( )

inlineprivate

<LabelSet>.

Definition at line 234 of file context-parser.cc.

References word_().

Referenced by any_(), context_(), labelset_(), and labelset_or_weightset_().

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std::shared_ptr<ast_node> vcsn::ast::context_parser::labelset_ ( const std::string & ls )

inlineprivate

<LabelSet>.

Definition at line 240 of file context-parser.cc.

References eat_(), expressionset_(), genset_(), labelset_(), vcsn::res, seriesset_(), vcsn::str_escape(), and tupleset_().

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std::shared_ptr<ast_node> vcsn::ast::context_parser::labelset_or_weightset_ ( )

inlineprivate

<LabelSet> | <WeightSet>

Definition at line 471 of file context-parser.cc.

References word_().

Referenced by tupleset_().

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std::shared_ptr<ast_node> vcsn::ast::context_parser::labelset_or_weightset_ ( const std::string & w )

inlineprivate

<LabelSet> | <WeightSet>

Definition at line 477 of file context-parser.cc.

References expressionset_(), vcsn::has(), labelset_(), labelsets_, seriesset_(), tupleset_(), weightset_(), and weightsets_.

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std::string vcsn::ast::context_parser::parameters_ ( )

inlineprivate

The next parameters in the stream.

Must be right before the opening <. Will return up to the matching >. Skips spaces.

Definition at line 108 of file context-parser.cc.

References eat_(), is_, peek_(), and vcsn::res.

Referenced by any_().

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std::shared_ptr<ast_node> vcsn::ast::context_parser::parse ( )

inline

Accept anything.

Definition at line 26 of file context-parser.cc.

References any_(), check_eof_(), and vcsn::res.

Referenced by vcsn::ast::parse_type().

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std::shared_ptr<ast_node> vcsn::ast::context_parser::parse_context ( )

inline

Accept only a valid context.

Definition at line 34 of file context-parser.cc.

References check_eof_(), context_(), and vcsn::res.

Referenced by vcsn::ast::parse_context().

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int vcsn::ast::context_parser::peek_ ( )

inlineprivate

The next character, possibly preceded by spaces.

Definition at line 50 of file context-parser.cc.

References is_, and skip_space_().

Referenced by any_(), automaton_(), check_eof_(), expressionset_(), genset_(), parameters_(), tuple_(), and tupleset_().

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std::shared_ptr<polynomialset> vcsn::ast::context_parser::polynomialset_ ( )

inlineprivate

"polynomialset" "\<" <Context> "\>".

Definition at line 462 of file context-parser.cc.

References context_(), eat_(), and vcsn::res.

Referenced by any_(), and weightset_().

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std::shared_ptr<expressionset> vcsn::ast::context_parser::seriesset_ ( )

inlineprivate

No optional argument.

Definition at line 442 of file context-parser.cc.

References context_(), vcsn::rat::identities::distributive, and eat_().

Referenced by any_(), labelset_(), labelset_or_weightset_(), and weightset_().

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void vcsn::ast::context_parser::skip_space_ ( )

inlineprivate

Skip white spaces.

Definition at line 43 of file context-parser.cc.

References is_.

Referenced by eat_(), peek_(), and word_().

std::shared_ptr<tuple> vcsn::ast::context_parser::tuple_ ( )

inlineprivate

"\<" (<Any> ",")* "\>".

Definition at line 396 of file context-parser.cc.

References any_(), eat_(), peek_(), and vcsn::res.

Referenced by any_().

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std::shared_ptr<tupleset> vcsn::ast::context_parser::tupleset_ ( )

inlineprivate

"\<" (<LabelSet> | <WeightSet> ",")+ "\>".

Definition at line 411 of file context-parser.cc.

References eat_(), labelset_or_weightset_(), peek_(), and vcsn::res.

Referenced by any_(), labelset_(), labelset_or_weightset_(), and weightset_().

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std::shared_ptr<ast_node> vcsn::ast::context_parser::weightset_ ( )

inlineprivate

<WeightSet>.

Definition at line 279 of file context-parser.cc.

References word_().

Referenced by any_(), context_(), and labelset_or_weightset_().

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std::shared_ptr<ast_node> vcsn::ast::context_parser::weightset_ ( const std::string & ws )

inlineprivate

<WeightSet>.

Definition at line 285 of file context-parser.cc.

References expressionset_(), vcsn::has(), polynomialset_(), seriesset_(), vcsn::str_escape(), tupleset_(), and weightsets_.

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std::string vcsn::ast::context_parser::word_ ( )

inlineprivate

The next word in the stream.

Does not consider that underscore is word-constituent. Skips spaces.

Definition at line 87 of file context-parser.cc.

References is_, vcsn::res, and skip_space_().

Referenced by any_(), automaton_(), context_(), genset_(), labelset_(), labelset_or_weightset_(), and weightset_().

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Member Data Documentation

std::istringstream& vcsn::ast::context_parser::is_

private

The stream we are parsing.

Definition at line 494 of file context-parser.cc.

Referenced by check_eof_(), eat_(), expressionset_(), genset_(), parameters_(), peek_(), skip_space_(), and word_().

std::set<std::string> vcsn::ast::context_parser::labelsets_

private

Initial value:

=
        {
          "lal",
          "lal_char",
          "lan",
          "lan_char",
          "lao",
          "law",
          "law_char",
          "letterset",
          "nullableset",
          "wordset",
        }

The set of weightset names.

Definition at line 512 of file context-parser.cc.

Referenced by any_(), and labelset_or_weightset_().

std::set<std::string> vcsn::ast::context_parser::weightsets_

private

Initial value:

=
        {
          "b",
          "f2",
          "log",
          "nmin",
          "q",
          "qmp",
          "r",
          "rmin",
          "z",
          "zmin",
        }

The set of terminal weightset names.

Definition at line 497 of file context-parser.cc.

Referenced by any_(), labelset_or_weightset_(), and weightset_().

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

lib/vcsn/dyn/context-parser.cc

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation