zypp::iostr Namespace Reference

Iostream related utilities. More...

Classes
class	EachLine
	Simple lineparser: Traverse each line in a file. More...

Typedefs
using	IosFmtFlagsSaver = boost::io::ios_base_all_saver
	Save and restore streams width, precision and fmtflags.

Enumerations
enum	ParseFlag {   PF_LTRIM = 1 << 0 , PF_RTRIM = 1 << 1 , PF_TRIM = PF_LTRIM | PF_RTRIM , PF_SKIP_EMPTY = 1 << 2 ,   PF_SKIP_SHARP_COMMENT = 1 << 3 }
	simpleParseFile modifications before consuming a line. More...

Functions
std::string	getline (std::istream &str) ZYPP_API
	Read one line from stream.
int	forEachLine (std::istream &str_r, const function< bool(int, std::string)> &consume_r) ZYPP_API
	Simple lineparser: Call functor consume_r for each line.
	BOOST_MPL_ASSERT_RELATION (int(PF_LTRIM),==, int(str::L_TRIM))
	BOOST_MPL_ASSERT_RELATION (int(PF_RTRIM),==, int(str::R_TRIM))
int	simpleParseFile (std::istream &str_r, ParseFlags flags_r, function< bool(int, std::string)> consume_r) ZYPP_API
	Simple lineparser optionally trimming and skipping comments.
std::ostream &	copy (std::istream &from_r, std::ostream &to_r)
	Copy istream to ostream.
std::ostream &	copyIndent (std::istream &from_r, std::ostream &to_r, const std::string &indent_r="> ")
	Copy istream to ostream, prefixing each line with indent_r (default "> " ).
void	tee (std::istream &from_r, std::ostream &to1_r, std::ostream &to2_r)
	Copy istream to ostream, prefixing each line with indent_r (default "> " ).
	ZYPP_DECLARE_FLAGS (ParseFlags, ParseFlag)
	ZYPP_DECLARE_OPERATORS_FOR_FLAGS (ParseFlags)
int	simpleParseFile (std::istream &str_r, function< bool(int, std::string)> consume_r)

Detailed Description

Iostream related utilities.

Typedef Documentation

IosFmtFlagsSaver

using zypp::iostr::IosFmtFlagsSaver = boost::io::ios_base_all_saver

Save and restore streams width, precision and fmtflags.

Definition at line 36 of file IOStream.h.

Enumeration Type Documentation

ParseFlag

enum zypp::iostr::ParseFlag

simpleParseFile modifications before consuming a line.

Enumerator
PF_LTRIM
PF_RTRIM
PF_TRIM
PF_SKIP_EMPTY
PF_SKIP_SHARP_COMMENT

Definition at line 189 of file IOStream.h.

Function Documentation

getline()

std::string zypp::iostr::getline

(

std::istream &

str

)

Read one line from stream.

Reads everything up to the next newline or EOF. newline is read but not returned.

See also

forEachLine

Definition at line 33 of file IOStream.cc.

forEachLine()

int zypp::iostr::forEachLine	(	std::istream &	str_r,
		const function< bool(int, std::string)> &	consume_r )

Simple lineparser: Call functor consume_r for each line.

Parameters

str_r	istream to read from.
consume_r	callback function taking linenumber and content

The loop is aborted if the callback returns false.

iostr::forEachLine( InputStream( "/my/file/to/read.txt" ),
                    []( int num_r, std::string line_r )->bool
                    {
                      MIL << " [" num_r << "]'" << line_r << "'" << endl;
                      return true;
                    } );

Returns

Number if lines consumed (negative if aborted by callback).

Definition at line 100 of file IOStream.cc.

BOOST_MPL_ASSERT_RELATION() [1/2]

zypp::iostr::BOOST_MPL_ASSERT_RELATION	(	int(PF_LTRIM)	,
		int(str::L_TRIM)	)

BOOST_MPL_ASSERT_RELATION() [2/2]

zypp::iostr::BOOST_MPL_ASSERT_RELATION	(	int(PF_RTRIM)	,
		int(str::R_TRIM)	)

simpleParseFile() [1/2]

int zypp::iostr::simpleParseFile	(	std::istream &	str_r,
		ParseFlags	flags_r,
		function< bool(int, std::string)>	consume_r )

Simple lineparser optionally trimming and skipping comments.

Definition at line 124 of file IOStream.cc.

copy()

std::ostream & zypp::iostr::copy ( std::istream & from_r, std::ostream & to_r )

inline

Copy istream to ostream.

Returns

reference to the ostream.

Definition at line 51 of file IOStream.h.

copyIndent()

std::ostream & zypp::iostr::copyIndent ( std::istream & from_r, std::ostream & to_r, const std::string & indent_r = "> " )

inline

Copy istream to ostream, prefixing each line with indent_r (default "> " ).

Returns

reference to the ostream.

Definition at line 65 of file IOStream.h.

tee()

void zypp::iostr::tee ( std::istream & from_r, std::ostream & to1_r, std::ostream & to2_r )

inline

Copy istream to ostream, prefixing each line with indent_r (default "> " ).

Returns

reference to the ostream.

Definition at line 85 of file IOStream.h.

ZYPP_DECLARE_FLAGS()

zypp::iostr::ZYPP_DECLARE_FLAGS	(	ParseFlags	,
		ParseFlag	)

ZYPP_DECLARE_OPERATORS_FOR_FLAGS()

zypp::iostr::ZYPP_DECLARE_OPERATORS_FOR_FLAGS

(

ParseFlags

)

simpleParseFile() [2/2]

int zypp::iostr::simpleParseFile ( std::istream & str_r, function< bool(int, std::string)> consume_r )

inline

Definition at line 204 of file IOStream.h.