wex::factory::unified_diff Class Reference

Offers a class that parses a unified diff string and report diffs for a derived class. More...

#include <wex/factory/unified-diff.h>

Inheritance diagram for wex::factory::unified_diff:

Public Types
enum class	diff_t { FIRST , OTHER , LAST , UNKNOWN }
	Type for this diff. More...

Public Member Functions
	unified_diff (std::string input=std::string())
	Constructor.
virtual	~unified_diff ()=default
	Destructor.
virtual bool	report_diff ()
	Virtual interface.
virtual void	report_diff_finish ()
	The last diff has been generated, we are finished.
size_t	differences () const
	Returns number of differences found during parsing.
const std::string &	input () const
	Returns input.
bool	is_first () const
	Returns true if this is the first diff of a hunk.
bool	is_last () const
	Returns true if this is the last diff of a hunk.
bool	parse ()
	Parses the input.
const path &	path_from () const
	Returns path from.
const path &	path_to () const
	Returns path to.
int	range_from_start () const
	Returns start number for the from file.
int	range_from_count () const
	Returns count number for the from file.
int	range_to_start () const
	Returns start number for the to file.
int	range_to_count () const
	Returns count number for the to file.
const std::vector< std::string > &	text_added () const
	Returns text added.
const std::vector< std::string > &	text_removed () const
	Returns text removed.
void	trace (const std::string &text) const
	Logs this diff as trace logging.
diff_t	type () const
	Returns the difference type.
void	type_from (const unified_diff &org)
	Copies type from org.

Detailed Description

Offers a class that parses a unified diff string and report diffs for a derived class.

Context is not expected, you have to create a diff using -U0 (no context).

Member Enumeration Documentation

diff_t

enum class wex::factory::unified_diff::diff_t

strong

Type for this diff.

Enumerator
FIRST	the first diff from input
OTHER	other diffs from input
LAST	the last diff from input
UNKNOWN	no diff found

Constructor & Destructor Documentation

unified_diff()

wex::factory::unified_diff::unified_diff

(

std::string

input = std::string()

)

Constructor.

Parameters

input

Provide input, that is conform unified diff format output.

Member Function Documentation

parse()

bool wex::factory::unified_diff::parse

(

)

Parses the input.

This routine invokes report_diff methods. Returns false on error during parsing.

report_diff()

virtual bool wex::factory::unified_diff::report_diff ( )

inlinevirtual

Virtual interface.

Do something with a diff.