246 lines
8.2 KiB
C++
246 lines
8.2 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2010 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
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* Copyright (C) 2010 KiCad Developers, see change_log.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef SCH_LPID_H_
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#define SCH_LPID_H_
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#include <utf8.h>
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#include <richio.h>
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namespace SCH {
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/**
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* Class LPID
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* (aka GUID) is a Logical Part ID and consists of various portions much like a URI.
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* It is a container for the separated portions of a logical part id STRING so they
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* can be accessed individually. The various portions of an LPID are:
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* logicalLibraryName, category, baseName, and revision. Only the baseName is
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* mandatory. There is another construct called "partName" which consists of
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* [category/]baseName. That is the category followed by a slash, but only if
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* the category is not empty.
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* <p>
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* partName = [category/]baseName
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* <p>
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* Example LPID string:
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* "kicad:passives/R/rev6".
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* <p>
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* <ul>
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* <li> "kicad" is the logical library name.
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* <li> "passives" is the category.
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* <li> "passives/R" is the partname.
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* <li> "rev6" is the revision, which is optional. If missing then its
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* / delimiter should also not be present. A revision must begin with
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* "rev" and be followed by at least one or more decimal digits.
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* </ul>
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* @author Dick Hollenbeck
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*/
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class LPID // aka GUID
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{
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public:
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LPID() {}
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/**
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* Constructor LPID
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* takes aLPID string and parses it. A typical LPID string uses a logical
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* library name followed by a part name.
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* e.g.: "kicad:passives/R/rev2", or
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* e.g.: "mylib:R33"
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*/
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LPID( const STRING& aLPID ) throw( PARSE_ERROR );
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/**
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* Function Parse
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* [re-]stuffs this LPID with the information from @a aLPID.
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* @return int - minus 1 (i.e. -1) means success, >= 0 indicates the
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* character offset into aLPID at which an error was detected.
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*/
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int Parse( const STRING& aLPID );
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/**
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* Function GetLogicalLib
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* returns the logical library portion of a LPID. There is not Set accessor
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* for this portion since it comes from the library table and is considered
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* read only here.
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*/
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const STRING& GetLogicalLib() const
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{
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return logical;
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}
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/**
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* Function SetCategory
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* overrides the logical lib name portion of the LPID to @a aLogical, and can be empty.
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* @return int - minus 1 (i.e. -1) means success, >= 0 indicates the
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* character offset into the parameter at which an error was detected, usually
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* because it contained '/' or ':'.
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*/
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int SetLogicalLib( const STRING& aLogical );
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/**
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* Function GetCategory
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* returns the category of this part id, "passives" in the example at the
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* top of the class description.
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*/
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const STRING& GetCategory() const
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{
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return category;
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}
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/**
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* Function SetCategory
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* overrides the category portion of the LPID to @a aCategory and is typically
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* either the empty string or a single word like "passives".
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* @return int - minus 1 (i.e. -1) means success, >= 0 indicates the
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* character offset into the parameter at which an error was detected, usually
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* because it contained '/' or ':'.
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*/
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int SetCategory( const STRING& aCategory );
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/**
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* Function GetBaseName
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* returns the part name without the category.
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*/
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const STRING& GetBaseName() const
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{
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return baseName;
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}
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/**
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* Function SetBaseName
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* overrides the base name portion of the LPID to @a aBaseName
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* @return int - minus 1 (i.e. -1) means success, >= 0 indicates the
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* character offset into the parameter at which an error was detected, usually
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* because it contained '/' or ':', or is blank.
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*/
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int SetBaseName( const STRING& aBaseName );
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/**
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* Function GetPartName
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* returns the part name, i.e. category/baseName without revision.
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*/
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const STRING& GetPartName() const
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{
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return partName;
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}
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/**
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* Function GetPartNameAndRev
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* returns the part name with revision if any, i.e. [category/]baseName[/revN..]
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*/
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STRING GetPartNameAndRev() const;
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/**
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* Function SetPartName
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* overrides the part name portion of the LPID to @a aPartName
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* @return int - minus 1 (i.e. -1) means success, >= 0 indicates the
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* character offset into the parameter at which an error was detected, usually
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* because it contained more than one '/', or one or more ':', or is blank.
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* A single '/' is allowed, since that is used to separate the category from the
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* base name.
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*/
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int SetPartName( const STRING& aPartName );
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/**
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* Function GetRevision
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* returns the revision portion of the LPID.
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*/
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const STRING& GetRevision() const
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{
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return revision;
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}
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/**
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* Function SetRevision
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* overrides the revision portion of the LPID to @a aRevision and must
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* be in the form "rev<num>" where "<num>" is "1", "2", etc.
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* @return int - minus 1 (i.e. -1) means success, >= 0 indicates the
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* character offset into the parameter at which an error was detected,
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* because it did not look like "rev23"
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*/
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int SetRevision( const STRING& aRevision );
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/**
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* Function Format
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* returns the full text of the LPID.
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*/
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STRING Format() const;
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/**
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* Function Format
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* returns a STRING in the proper format as an LPID for a combination of
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* aLogicalLib, aPartName, and aRevision.
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* @throw PARSE_ERROR if any of the pieces are illegal.
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*/
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static STRING Format( const STRING& aLogicalLib, const STRING& aPartName, const STRING& aRevision="" )
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throw( PARSE_ERROR );
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void clear();
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#if defined(DEBUG)
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static void Test();
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#endif
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protected:
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STRING logical; ///< logical lib name or empty
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STRING category; ///< or empty
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STRING baseName; ///< without category
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STRING revision; ///< "revN[N..]" or empty
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STRING partName; ///< cannot be set directory, set via SetBaseName() & SetCategory()
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};
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} // namespace SCH
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/**
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* Function EndsWithRev
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* returns a pointer to the final string segment: "revN[N..]" or NULL if none.
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* @param start is the beginning of string segment to test, the partname or
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* any middle portion of it.
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* @param tail is a pointer to the terminating nul, or one past inclusive end of
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* segment, i.e. the string segment of interest is [start,tail)
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* @param separator is the separating byte, expected: '.' or '/', depending on context.
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*/
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const char* EndsWithRev( const char* start, const char* tail, char separator = '/' );
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static inline const char* EndsWithRev( const STRING& aPartName, char separator = '/' )
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{
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return EndsWithRev( aPartName.c_str(), aPartName.c_str()+aPartName.size(), separator );
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}
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/**
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* Function RevCmp
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* compares two rev strings in a way like strcmp() except that the highest numbered
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* revision is considered first in the sort order. The function probably won't work
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* unless you give it two rev strings.
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* @param s1 is a rev string like "rev10"
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* @param s2 is a rev string like "rev1".
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* @return int - either negative, zero, or positive depending on whether the revision
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* is greater, equal, or less on the left hand side.
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*/
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int RevCmp( const char* s1, const char* s2 );
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#endif // SCH_LPID_H_
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