dballe::Querybuf Struct Reference

String buffer for composing database queries. More...

#include <querybuf.h>

Inheritance diagram for dballe::Querybuf:

Public Member Functions
	Querybuf (size_t reserve=512)
void	clear ()
	Reset the querybuf to contain the empty string.
void	start_list (const char *sep)
	Begin a list of items separated by the given separator. More...
void	appendf (const char *fmt,...) __attribute__((format(printf
	Append a formatted string to the querybuf. More...
void void	append_list (const char *str)
	Append a string to the querybuf, as part of a list. More...
void	append_listf (const char *fmt,...) __attribute__((format(printf
	Append a formatted string to the querybuf, as part of a list. More...
void void	append_varlist (const std::string &varlist)
	Append a comma-separated list of integer varcodes parsed from a varlist=B12101,B12013 query parameter.
void	append_varlist (const std::set< wreport::Varcode > &varlist)
	Append a comma-separated list of integer varcodes.

Data Fields
bool	list_first
char	list_sep [10]

Detailed Description

String buffer for composing database queries.

Constructor & Destructor Documentation

dballe::Querybuf::Querybuf

(

size_t

reserve = 512

)

Parameters

reserve

Initial preallocated size for the buffer. If this is chosen wisely, there is no need to reallocate space while composing the query.

Member Function Documentation

void void dballe::Querybuf::append_list

(

const char *

str

)

Append a string to the querybuf, as part of a list.

This function will prepend str with the current list separator, unless it is the first item added to the list.

Parameters

str	The string to append

void dballe::Querybuf::append_listf	(	const char *	fmt,
			...
	)

Append a formatted string to the querybuf, as part of a list.

This function will prepend str with the current list separator, unless it is the first item added to the list.

Parameters

str	The string to append

void dballe::Querybuf::appendf	(	const char *	fmt,
			...
	)

Append a formatted string to the querybuf.

Parameters

fmt	The string to append, which will be formatted in printf style

void dballe::Querybuf::start_list

(

const char *

sep

)

Begin a list of items separated by the given separator.

Items are added using append_list().

Parameters

sep	The separator to add between every list item

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

• querybuf.h