kicad/CMakeModules/TokenList2DsnLexer.cmake

227 lines
7.1 KiB
CMake

#
# This program source code file is part of KICAD, a free EDA CAD application.
#
# Copyright (C) 2010 Wayne Stambaugh <stambaughw@verizon.net>
# Copyright (C) 2010 Kicad Developers, see AUTHORS.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
#
#
# This script converts a plain text file with a line feed separated list
# of token names into the appropriate source and header files required by
# the DSN lexer. See files "<base_source_path>/common/dsnlexer.cpp" and
# "<base_source_path>/include/dsnlexer.h" for more information about how
# the DSN lexer works. The token list file format requires a single token
# per line. Tokens can only contain lower case letters, numbers, and
# underscores. The first letter of each token must be a lower case letter.
# Tokens must be unique. If any of the above criteria are not met, the
# source and header files will not be generated and a build error will
# occur.
#
# Valid tokens: a a1 foo_1 foo_bar2
# Invalid tokens: 1 A _foo bar_ foO
#
# Usage:
#
# add_custom_command(
# OUTPUT ${CMAKE_BINARY_DIR}/cmp_library_keywords.h
# ${CMAKE_BINARY_DIR}/cmp_library_keywords.cpp
# COMMAND ${CMAKE_COMMAND}
# -Denum=YOURTOK_T
# -DinputFile=${CMAKE_CURRENT_SOURCE_DIR}/cmp_library.keywords
# -P ${CMAKE_MODULE_PATH}/TokenList2DsnLexer.cmake
# DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/cmp_library.keywords
# )
#
# Input parameters:
#
# enum - The name of the enum to generate, defaults to DSN_T, but
# you'll get collisions if you don't override it.
# inputFile - The name of the token list file.
# outputPath - Optional output path to save the generated files. If not defined,
# the output path is the same path as the token list file path.
set( tokens "" )
set( lineCount 0 )
set( dsnErrorMsg "DSN token file generator failure:" )
if( NOT EXISTS ${inputFile} )
message( FATAL_ERROR "${dsnErrorMsg} file ${inputFile} cannot be found." )
endif( NOT EXISTS ${inputFile} )
if( NOT EXISTS ${outputPath} )
get_filename_component( outputPath "${inputFile}" PATH )
endif( NOT EXISTS ${outputPath} )
if( NOT DEFINED enum )
set( enum DSN_T )
endif()
#message( STATUS "enum: ${enum}" )
# Separate the file name without extension from the full file path.
get_filename_component( result "${inputFile}" NAME_WE )
message( STATUS "Extracted file name ${result} from path ${inputFile}" )
# Create include and source file name from the list file name.
set( includeFileName "${outputPath}/${result}_keywords.h" )
set( sourceFileName "${outputPath}/${result}_keywords.cpp" )
# Create tag for generating header file.
string( TOUPPER "${result}" fileNameTag )
set( headerTag "_${fileNameTag}_H_" )
set( includeFileHeader
"
/*
* Do not modify this file it was automatically generated by the TokenList2DsnLexer CMake
* script.
*/
#ifndef ${headerTag}
#define ${headerTag}
#include \"dsnlexer.h\"
namespace DSN {
enum ${enum} {
// these first few are negative special ones for syntax, and are
// inherited from DSNLEXER.
T_NONE = DSN_NONE,
T_COMMENT = DSN_COMMENT,
T_STRING_QUOTE = DSN_STRING_QUOTE,
T_QUOTE_DEF = DSN_QUOTE_DEF,
T_DASH = DSN_DASH,
T_SYMBOL = DSN_SYMBOL,
T_NUMBER = DSN_NUMBER,
T_RIGHT = DSN_RIGHT, // right bracket, ')'
T_LEFT = DSN_LEFT, // left bracket, '('
T_STRING = DSN_STRING, // a quoted string, stripped of the quotes
T_EOF = DSN_EOF, // special case for end of file
"
)
set( sourceFileHeader
"
/*
* Do not modify this file it was automatically generated by the TokenList2DsnLexer CMake
* script.
*
* Include this file in your lexer class to provide the keywords for you DSN lexer.
*/
#include \"fctsys.h\"
#include \"macros.h\"
#include \"${result}_keywords.h\"
namespace DSN {
#define TOKDEF(x) { #x, T_##x }
const KEYWORD ${result}_keywords[] = {
"
)
file( STRINGS ${inputFile} tmpTokens NO_HEX_CONVERSION )
foreach( tmpToken ${tmpTokens} )
math( EXPR lineCount "${lineCount} + 1" )
string( STRIP tmpToken "${tmpToken}" )
# Ignore empty lines.
if( tmpToken )
# Make sure token is valid.
string( REGEX MATCH "[a-z][_0-9a-z]*[0-9a-z]$" validToken "${tmpToken}" )
if( validToken STREQUAL tmpToken )
list( APPEND tokens "${validToken}" )
else( validToken STREQUAL tmpToken )
message( FATAL_ERROR
"Invalid token string \"${tmpToken}\" at line ${lineCount} in file "
"<${inputFile}>." )
endif( validToken STREQUAL tmpToken )
endif( tmpToken )
endforeach( tmpToken ${tmpTokens} )
list( SORT tokens )
# Check for duplicates.
list( LENGTH tokens tokensBefore )
list( REMOVE_DUPLICATES tokens )
list( LENGTH tokens tokensAfter )
if( NOT ( tokensBefore EQUAL tokensAfter ) )
message( FATAL_ERROR "Duplicate tokens found in file <${inputFile}>." )
endif( NOT ( tokensBefore EQUAL tokensAfter ) )
file( WRITE "${includeFileName}" "${includeFileHeader}" )
file( WRITE "${sourceFileName}" "${sourceFileHeader}" )
set( lineCount 1 )
foreach( token ${tokens} )
if( lineCount EQUAL 1 )
file( APPEND "${includeFileName}" " T_${token} = 0" )
else( lineCount EQUAL 1 )
file( APPEND "${includeFileName}" " T_${token}" )
endif( lineCount EQUAL 1 )
file(APPEND "${sourceFileName}" " TOKDEF( ${token} )" )
if( lineCount EQUAL tokensAfter )
file( APPEND "${includeFileName}" "\n" )
file( APPEND "${sourceFileName}" "\n" )
else( lineCount EQUAL tokensAfter )
file( APPEND "${includeFileName}" ",\n" )
file( APPEND "${sourceFileName}" ",\n" )
endif( lineCount EQUAL tokensAfter )
math( EXPR lineCount "${lineCount} + 1" )
endforeach( token ${tokens} )
file( APPEND "${includeFileName}"
"};
extern const KEYWORD ${result}_keywords[];
extern const unsigned ${result}_keyword_count;
} // End namespace DSN
#endif // End ${headerTag}
"
)
file( APPEND "${sourceFileName}"
"};
const unsigned ${result}_keyword_count = DIM( ${result}_keywords );
} // End namespace DSN
"
)