# CSV Parser build configuration

# Find required tools
bison = find_program('bison', 'yacc', required: true)
flex = find_program('flex', required: true)

# Find libderp via pkg-config
libderp_dep = dependency('libderp', required: true)

# Set up generators for bison and flex
bison_gen = generator(bison,
    output: ['@BASENAME@.tab.c', '@BASENAME@.tab.h', '@BASENAME@.output', '@BASENAME@.xml', '@BASENAME@.dot'],
    arguments: ['-d', '@INPUT@', '--output=@OUTPUT0@', '--defines=@OUTPUT1@', '--report=all,counterexamples', '--report-file=@OUTPUT2@', '--xml=@OUTPUT3@', '--graph=@OUTPUT4@', '--warnings=all,counterexamples'])

flex_gen = generator(flex,
    output: ['@BASENAME@.yy.c', '@BASENAME@.lex.h'],
    arguments: ['--header-file=@OUTPUT1@', '-o', '@OUTPUT0@', '@INPUT@'])

# Generate parser and lexer files
csv_parser_files = bison_gen.process('csv.y')
csv_lexer_files = flex_gen.process('csv.l')

# Generate iCalendar parser and lexer files
ical_parser_files = bison_gen.process('ical.y')
ical_lexer_files = flex_gen.process('ical.l')

# Check for yacc/flex libraries that may be needed for linking
cc = meson.get_compiler('c')
yacc_lib = cc.find_library('y', required: false)
flex_lib = cc.find_library('fl', required: false)

# Collect dependencies
parser_deps = [libderp_dep]
if yacc_lib.found()
    parser_deps += yacc_lib
endif
if flex_lib.found()
    parser_deps += flex_lib
endif

# Build the CSV parser executable
csv_parser = executable('csv_parser',
    sources: [csv_parser_files, csv_lexer_files, 'csv_driver.c', 'csv_parser.c'],
    dependencies: parser_deps,
    c_args: ['-D_XOPEN_SOURCE=600'],
    install: false)

# Build the iCalendar parser executable
ical_parser = executable('ical_parser',
    sources: [ical_parser_files, ical_lexer_files, 'ical_driver.c', 'ical_parser.c'],
    dependencies: parser_deps,
    c_args: ['-D_XOPEN_SOURCE=600'],
    install: false)