cmake_minimum_required( VERSION 3.12 )

# executable is ${EXPPP}, input file is ${INFILE}

set( ofile "lost_var_out.exp" )

execute_process( COMMAND ${EXPPP} -o ${ofile} ${INFILE}

RESULT_VARIABLE CMD_RESULT )

if( NOT ${CMD_RESULT} EQUAL 0 )

message(FATAL_ERROR "Error running ${EXPPP} on ${INFILE}")

endif( NOT ${CMD_RESULT} EQUAL 0 )

# file( READ ${INFILE} pretty_in LIMIT 1024 )

file( READ ${ofile} pretty_out LIMIT 1024 )

# VAR rmax_in : BOOLEAN

string( REGEX MATCH "VAR *rmax_in *: *BOOLEAN" match_result ${pretty_out} )

# r : REAL (should not have VAR)

string( REGEX MATCH "VAR *r *: *REAL" match_result2 ${pretty_out} )

if( match_result STREQUAL "" )

message( FATAL_ERROR "Pretty printer output does not match input - missing VAR." )

endif( match_result STREQUAL "" )

if( NOT match_result2 STREQUAL "" )

message( FATAL_ERROR "Pretty printer output does not match input - extra VAR." )

endif( NOT match_result2 STREQUAL "" )