cttl::policy_space< flag_cpp_comments > Struct Template Reference

Space policy specialization to skip white space characters combined with C and C++ style comments. More...

#include <policy.h>

Inheritance diagram for cttl::policy_space< flag_cpp_comments >:

List of all members.

Static Public Member Functions
static size_t	comment (const_edge< policy_default, CTTL_STD_STRING > &substr_)
	Defines CTTL grammar production rule matching C and C++ comments.
template<typename SubstrT >
static size_t	match (SubstrT &substr_)
	Defines CTTL grammar production rule to evaluate grammar expression matching white space characters combined with C and C++ comments.
static size_t	space_and_comment (const_edge< policy_default, CTTL_STD_STRING > &substr_)
	Defines CTTL grammar production rule matching white space characters combined with C and C++ comments.

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Detailed Description

template<>
struct cttl::policy_space< flag_cpp_comments >

Space policy specialization to skip white space characters combined with C and C++ style comments.

Remarks:

This is ungreedy version of the corresponding space policy.

Definition at line 836 of file policy.h.

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Member Function Documentation

static size_t cttl::policy_space< flag_cpp_comments >::comment

(

const_edge< policy_default, CTTL_STD_STRING > &

substr_

)

[static]

Defines CTTL grammar production rule matching C and C++ comments.

Parameters:

substr_

references parseable substring.

Returns:

absolute position of the substring upper boundary after expression is evaluated.

Definition at line 931 of file policy.h.

    {
        typedef const_edge< policy_default, CTTL_STD_STRING >::char_T char_T;
        return (
            begin( char_T( '/' ) )
            +
            (
                ( symbol( char_T( '/' ) ) + symbol( char_T( '/' ) ) + !begin( symbol( char_T( '\n' ) ) | end() ) )
                |
                ( symbol( char_T( '/' ) ) + symbol( char_T( '*' ) ) + !!( symbol( char_T( '*' ) ) + symbol( char_T( '/' ) ) ) )
            )
        ).match( substr_ );
    }

template<typename SubstrT >

static size_t cttl::policy_space< flag_cpp_comments >::match

(

SubstrT &

substr_

)

[static]

Defines CTTL grammar production rule to evaluate grammar expression matching white space characters combined with C and C++ comments.

Template Parameters:

SubstrT

specifies type of the parseable substring, such as cttl::const_edge or cttl::edge.

Parameters:

substr_

references parseable substring.

Returns:

absolute position of the substring upper boundary after expression that matches white space is evaluated.

Postcondition:

The function must

• always succeed
• return a valid offset within the specified substring.

Remarks:

This implementation is ungreedy.

Reimplemented from cttl::policy_default.

Reimplemented in cttl::policy_space< flag_greedy|flag_cpp_comments >.

Definition at line 864 of file policy.h.

    {
        CTTL_TRACE_SILENT( true );
        size_t ungreedy_offset = substr_.first.offset();
        (
            true ^ rule( policy_space< flag_cpp_comments >::space_and_comment )

        ).match( substr_ );

        // policy_space is ungreedy:
        return ungreedy_offset;
    }

static size_t cttl::policy_space< flag_cpp_comments >::space_and_comment

(

const_edge< policy_default, CTTL_STD_STRING > &

substr_

)

[static]

Defines CTTL grammar production rule matching white space characters combined with C and C++ comments.

Parameters:

substr_

references parseable substring.

Returns:

absolute position of the substring upper boundary after expression is evaluated.

Definition at line 888 of file policy.h.

    {
        return (
            (
                entity( isspace )
                +
                (
                    (
                        rule( policy_space< flag_cpp_comments >::comment )
                        +
                        rule( policy_space< flag_cpp_comments >::space_and_comment )
                    )
                    |
                    begin( true )
                )
            )
            |
            (
                rule( policy_space< flag_cpp_comments >::comment )
                +
                (
                    rule( policy_space< flag_cpp_comments >::space_and_comment )
                    |
                    begin( true )
                )
            )
            |
            begin( true )

        ).match( substr_ );
    }

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

• policy.h