/* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2010-2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com> * Copyright (C) 2012 Wayne Stambaugh <stambaughw@gmail.com> * Copyright (C) 2010-2020 KiCad Developers, see change_log.txt for contributors. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, you may find one here: * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html * or you may search the http://www.gnu.org website for the version 2 license, * or you may write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ #ifndef _LIB_ID_H_ #define _LIB_ID_H_ #include <richio.h> #include <utf8.h> /** * A logical library item identifier and consists of various portions much like a URI. * * It consists of of triad of the library nickname, the name of the item in the library, * and an optional revision of the item. This is a generic library identifier that can be * used for any type of library that contains multiple named items such as footprint or * symbol libraries. * * Example LIB_ID string: * "smt:R_0805/rev0". * * - "smt" is the logical library name used to look up library information saved in the #LIB_TABLE. * - "R" is the name of the item within the library. * - "rev0" is the revision, which is optional. If missing then its delimiter should also not * be present. A revision must begin with "rev" and be followed by at least one or more * decimal digits. * * @author Dick Hollenbeck */ class LIB_ID { public: LIB_ID() {} // NOTE: don't define any constructors which call Parse() on their arguments. We want it // to be obvious to callers that parsing is involved (and that valid IDs are guaranteed in // the presence of disallowed characters, malformed ids, etc.). /** * This LIB_ID ctor is a special version which ignores the parsing due to symbol * names allowing '/' as a valid character. This was causing the symbol names to * be truncated at the first occurrence of '/' in the symbol name. * * @param aLibraryName is the library name used to look up the library item in the #LIB_TABLE. * @param aItemName is the name of the library item which is not parsed by the standard * LIB_ID::Parse() function. */ LIB_ID( const wxString& aLibraryName, const wxString& aItemName ); /** * Parse LIB_ID with the information from @a aId. * * A typical LIB_ID string consists of a library nickname followed by a library item name. * e.g.: "smt:R_0805", or * e.g.: "mylib:R_0805", or * e.g.: "ttl:7400" * * @param aId is the string to populate the #LIB_ID object. * @param aFix indicates invalid chars should be replaced with '_'. * * @return minus 1 (i.e. -1) means success, >= 0 indicates the character offset into * aId at which an error was detected. */ int Parse( const UTF8& aId, bool aFix = false ); /** * Return the logical library name portion of a LIB_ID. */ const UTF8& GetLibNickname() const { return m_libraryName; } /** * Override the logical library name portion of the LIB_ID to @a aNickname. * * @return int - minus 1 (i.e. -1) means success, >= 0 indicates the character offset * into the parameter at which an error was detected, usually because it * contained '/' or ':'. */ int SetLibNickname( const UTF8& aNickname ); /** * @return the library item name, i.e. footprintName, in UTF8. */ const UTF8& GetLibItemName() const { return m_itemName; } /** * Get strings for display messages in dialogs. * * Equivalent to m_itemName.wx_str(), but more explicit when building a Unicode string * in messages. * * @return the library item name, i.e. footprintName in a wxString (UTF16 or 32). */ const wxString GetUniStringLibItemName() const { return m_itemName.wx_str(); } /** * Override the library item name portion of the LIB_ID to @a aLibItemName * * @return int - minus 1 (i.e. -1) means success, >= 0 indicates the character offset * into the parameter at which an error was detected, usually because it * contained '/'. */ int SetLibItemName( const UTF8& aLibItemName ); /** * @return the fully formatted text of the LIB_ID in a UTF8 string. */ UTF8 Format() const; /** * @return the fully formatted text of the LIB_ID in a wxString (UTF16 or UTF32), * suitable to display the LIB_ID in dialogs. */ wxString GetUniStringLibId() const { return Format().wx_str(); } /** * @return a string in the proper format as an LIB_ID for a combination of * aLibraryName, aLibItemName, and aRevision. * * @throw PARSE_ERROR if any of the pieces are illegal. */ static UTF8 Format( const UTF8& aLibraryName, const UTF8& aLibItemName ); /** * Check if this LID_ID is valid. * * A valid #LIB_ID must have both the library nickname and the library item name defined. * The revision field is optional. * * @note A return value of true does not indicated that the #LIB_ID is a valid #LIB_TABLE * entry. * * @return true is the #LIB_ID is valid. * */ bool IsValid() const { return !m_libraryName.empty() && !m_itemName.empty(); } /** * @return true if the #LIB_ID only has the #m_itemName name defined. */ bool IsLegacy() const { return m_libraryName.empty() && !m_itemName.empty(); } /** * Clear the contents of the library nickname, library entry name, and revision strings. */ void clear(); /** * @return a boolean true value if the LIB_ID is empty. Otherwise return false. */ bool empty() const { return m_libraryName.empty() && m_itemName.empty(); } /** * Compare the contents of LIB_ID objects by performing a std::string comparison of the * library nickname, library entry name, and revision strings respectively. * * @param aLibId is the LIB_ID to compare against. * @return -1 if less than \a aLibId, 1 if greater than \a aLibId, and 0 if equal to \a aLibId. */ int compare( const LIB_ID& aLibId ) const; bool operator < ( const LIB_ID& aLibId ) const { return this->compare( aLibId ) < 0; } bool operator > ( const LIB_ID& aLibId ) const { return this->compare( aLibId ) > 0; } bool operator ==( const LIB_ID& aLibId ) const { return this->compare( aLibId ) == 0; } bool operator !=( const LIB_ID& aLibId ) const { return !(*this == aLibId); } /** * Examine \a aLibItemName for invalid #LIB_ID item name characters. * * @param aLibItemName is the #LIB_ID name to test for illegal characters. * @return offset of first illegal character otherwise -1. */ static int HasIllegalChars( const UTF8& aLibItemName ); /** * Replace illegal #LIB_ID item name characters with underscores '_'. * * @param aLibItemName is the #LIB_ID item name to replace illegal characters. * @param aLib True if we are checking library names, false if we are checking item names * @return the corrected version of \a aLibItemName. */ static UTF8 FixIllegalChars( const UTF8& aLibItemName, bool aLib ); /** * Looks for characters that are illegal in library nicknames. * * @param aLibraryName is the logical library name to be tested. * @return Invalid character found in the name or 0 is the name is valid. */ static unsigned FindIllegalLibraryNameChar( const UTF8& aLibraryName ); protected: /** * Tests whether a Unicode character is a legal LIB_ID item name character. * * The criteria for legal LIB_ID character is as follows: * - For both symbol and footprint names, neither '/' or ':' are legal. They are * reserved characters used by #LIB_ID::Parse. * - Spaces are allowed in footprint names as they are a legal filename character * on all operating systems. * - Spaces are not allowed in symbol names since symbol names are not quoted in the * schematic or symbol library file formats. * - Spaces are allowed in footprint library nicknames as they are quoted in the * footprint library table file format. * - Spaces are now also allowed in symbol library nicknames since they are quoted in * the new symbol library sexpr file format. * - Illegal file name characters are not allowed in footprint names since the file * name is the footprint name. * - Illegal file name characters except '/' are allowed in symbol names since the * name is not the file name. * * * @note @a aUniChar is expected to be a 32 bit Unicode character, not a UTF8 char, that use * a variable length coding value. */ static bool isLegalChar( unsigned aUniChar ); /** * Tests whether a Unicode character is a legal LIB_ID library nickname character * * @note @a aUniChar is expected to be a 32 bit Unicode character, not a UTF8 char, that use * a variable length coding value. */ static bool isLegalLibraryNameChar( unsigned aUniChar ); UTF8 m_libraryName; ///< The nickname of the library or empty. UTF8 m_itemName; ///< The name of the entry in the logical library. }; #endif // _LIB_ID_H_