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270 lines
10 KiB
270 lines
10 KiB
/*
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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) 2010-2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
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* Copyright (C) 2012 Wayne Stambaugh <stambaughw@gmail.com>
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* Copyright (C) 2010-2020 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 _LIB_ID_H_
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#define _LIB_ID_H_
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#include <richio.h>
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#include <utf8.h>
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/**
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* A logical library item identifier and consists of various portions much like a URI.
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*
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* It consists of of a dyad of the library nickname and the name of the item in the library
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* This is a generic library identifier that can be
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* used for any type of library that contains multiple named items such as footprint or
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* symbol libraries.
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*
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* Example LIB_ID string:
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* "smt:R_0805".
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*
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* - "smt" is the logical library name used to look up library information saved in the #LIB_TABLE.
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* - "R" is the name of the item within the library.
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*
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* @author Dick Hollenbeck
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*/
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class LIB_ID
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{
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public:
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LIB_ID() {}
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// NOTE: don't define any constructors which call Parse() on their arguments. We want it
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// to be obvious to callers that parsing is involved (and that valid IDs are guaranteed in
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// the presence of disallowed characters, malformed ids, etc.).
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/**
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* This LIB_ID ctor is a special version which ignores the parsing due to symbol
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* names allowing '/' as a valid character. This was causing the symbol names to
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* be truncated at the first occurrence of '/' in the symbol name.
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*
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* @param aLibraryName is the library name used to look up the library item in the #LIB_TABLE.
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* @param aItemName is the name of the library item which is not parsed by the standard
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* LIB_ID::Parse() function.
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*/
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LIB_ID( const wxString& aLibraryName, const wxString& aItemName );
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/**
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* Parse LIB_ID with the information from @a aId.
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*
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* A typical LIB_ID string consists of a library nickname followed by a library item name.
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* e.g.: "smt:R_0805", or
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* e.g.: "mylib:R_0805", or
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* e.g.: "ttl:7400"
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*
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* @param aId is the string to populate the #LIB_ID object.
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* @param aFix indicates invalid chars should be replaced with '_'.
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*
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* @return minus 1 (i.e. -1) means success, >= 0 indicates the character offset into
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* aId at which an error was detected.
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*/
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int Parse( const UTF8& aId, bool aFix = false );
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/**
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* Return the logical library name portion of a LIB_ID.
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*/
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const UTF8& GetLibNickname() const { return m_libraryName; }
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/**
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* Override the logical library name portion of the LIB_ID to @a aNickname.
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*
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* @return int - minus 1 (i.e. -1) means success, >= 0 indicates the character offset
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* into the parameter at which an error was detected, usually because it
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* contained '/' or ':'.
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*/
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int SetLibNickname( const UTF8& aNickname );
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/**
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* @return the library item name, i.e. footprintName, in UTF8.
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*/
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const UTF8& GetLibItemName() const { return m_itemName; }
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/**
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* Get strings for display messages in dialogs.
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*
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* Equivalent to m_itemName.wx_str(), but more explicit when building a Unicode string
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* in messages.
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*
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* @return the library item name, i.e. footprintName in a wxString (UTF16 or 32).
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*/
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const wxString GetUniStringLibItemName() const { return m_itemName.wx_str(); }
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/**
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* Override the library item name portion of the LIB_ID to @a aLibItemName
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*
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* @return int - minus 1 (i.e. -1) means success, >= 0 indicates the character offset
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* into the parameter at which an error was detected, usually because it
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* contained '/'.
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*/
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int SetLibItemName( const UTF8& aLibItemName );
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/**
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* Some LIB_IDs can have a sub-library identifier in addition to a library nickname.
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* This identifier is *not* part of the canonical LIB_ID and is not written out / parsed.
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* It is only used for internal sorting/grouping, if present.
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*
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* @return the sub-library name for this LIB_ID, if one exists
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*/
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UTF8 GetSubLibraryName() const { return m_subLibraryName; }
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void SetSubLibraryName( const UTF8& aName ) { m_subLibraryName = aName; }
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/**
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* @return the fully formatted text of the LIB_ID in a UTF8 string.
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*/
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UTF8 Format() const;
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/**
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* @return the fully formatted text of the LIB_ID in a wxString (UTF16 or UTF32),
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* suitable to display the LIB_ID in dialogs.
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*/
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wxString GetUniStringLibId() const
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{
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return Format().wx_str();
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}
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/**
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* @return a string in the proper format as an LIB_ID for a combination of
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* aLibraryName, aLibItemName
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*
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* @throw PARSE_ERROR if any of the pieces are illegal.
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*/
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static UTF8 Format( const UTF8& aLibraryName, const UTF8& aLibItemName );
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/**
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* Check if this LID_ID is valid.
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*
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* A valid #LIB_ID must have both the library nickname and the library item name defined.
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*
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* @note A return value of true does not indicated that the #LIB_ID is a valid #LIB_TABLE
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* entry.
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*
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* @return true is the #LIB_ID is valid.
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*
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*/
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bool IsValid() const
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{
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return !m_libraryName.empty() && !m_itemName.empty();
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}
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/**
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* @return true if the #LIB_ID only has the #m_itemName name defined.
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*/
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bool IsLegacy() const
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{
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return m_libraryName.empty() && !m_itemName.empty();
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}
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/**
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* Clear the contents of the library nickname, library entry name
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*/
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void clear();
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/**
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* @return a boolean true value if the LIB_ID is empty. Otherwise return false.
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*/
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bool empty() const
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{
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return m_libraryName.empty() && m_itemName.empty();
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}
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/**
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* Compare the contents of LIB_ID objects by performing a std::string comparison of the
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* library nickname, library entry name
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*
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* @param aLibId is the LIB_ID to compare against.
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* @return -1 if less than \a aLibId, 1 if greater than \a aLibId, and 0 if equal to \a aLibId.
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*/
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int compare( const LIB_ID& aLibId ) const;
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bool operator < ( const LIB_ID& aLibId ) const { return this->compare( aLibId ) < 0; }
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bool operator > ( const LIB_ID& aLibId ) const { return this->compare( aLibId ) > 0; }
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bool operator ==( const LIB_ID& aLibId ) const { return this->compare( aLibId ) == 0; }
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bool operator !=( const LIB_ID& aLibId ) const { return !(*this == aLibId); }
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/**
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* Examine \a aLibItemName for invalid #LIB_ID item name characters.
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*
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* @param aLibItemName is the #LIB_ID name to test for illegal characters.
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* @return offset of first illegal character otherwise -1.
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*/
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static int HasIllegalChars( const UTF8& aLibItemName );
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/**
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* Replace illegal #LIB_ID item name characters with underscores '_'.
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*
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* @param aLibItemName is the #LIB_ID item name to replace illegal characters.
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* @param aLib True if we are checking library names, false if we are checking item names
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* @return the corrected version of \a aLibItemName.
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*/
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static UTF8 FixIllegalChars( const UTF8& aLibItemName, bool aLib );
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/**
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* Looks for characters that are illegal in library nicknames.
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*
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* @param aLibraryName is the logical library name to be tested.
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* @return Invalid character found in the name or 0 is the name is valid.
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*/
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static unsigned FindIllegalLibraryNameChar( const UTF8& aLibraryName );
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protected:
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/**
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* Tests whether a Unicode character is a legal LIB_ID item name character.
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*
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* The criteria for legal LIB_ID character is as follows:
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* - For both symbol and footprint names, neither '/' or ':' are legal. They are
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* reserved characters used by #LIB_ID::Parse.
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* - Spaces are allowed in footprint names as they are a legal filename character
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* on all operating systems.
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* - Spaces are not allowed in symbol names since symbol names are not quoted in the
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* schematic or symbol library file formats.
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* - Spaces are allowed in footprint library nicknames as they are quoted in the
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* footprint library table file format.
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* - Spaces are now also allowed in symbol library nicknames since they are quoted in
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* the new symbol library sexpr file format.
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* - Illegal file name characters are not allowed in footprint names since the file
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* name is the footprint name.
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* - Illegal file name characters except '/' are allowed in symbol names since the
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* name is not the file name.
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*
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*
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* @note @a aUniChar is expected to be a 32 bit Unicode character, not a UTF8 char, that use
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* a variable length coding value.
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*/
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static bool isLegalChar( unsigned aUniChar );
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/**
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* Tests whether a Unicode character is a legal LIB_ID library nickname character
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*
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* @note @a aUniChar is expected to be a 32 bit Unicode character, not a UTF8 char, that use
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* a variable length coding value.
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*/
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static bool isLegalLibraryNameChar( unsigned aUniChar );
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UTF8 m_libraryName; ///< The nickname of the library or empty.
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UTF8 m_itemName; ///< The name of the entry in the logical library.
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UTF8 m_subLibraryName; ///< Optional sub-library name used for grouping within a library
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};
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#endif // _LIB_ID_H_
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