[fU] lex-based SerialTree text format parser underway :)

[stephan b. <st...@wa...>]

i started to learn lex yesterday and i've got a basic parser for the STre=
e=20
text format underway. It doesn't handle strings with spaces in them, but=20
here's what it does to the top of gev.map:

stephan@ludo:~/cvs/elib/lex >make && ./ltest < gev.map | head
Generating C_DEPS rules for *.cpp *.c *.c++ *.C *.cc *.moc
toc_atparse_file: test.flex is up to date.
Building C[++] binary [ltest].
+ cc -I. -I../include -o ltest main.cpp test.flex.cpp -lstdc++=20
=2E./lib/elib/libessentials.a -lfl
main.cpp:46 : Opening node [fun::HexMap]
main.cpp:38 : [fun::HexMap] add_property(gameboxName,G.E.V.)
main.cpp:38 : [fun::HexMap] add_property(gameboxVers,0.1)
main.cpp:38 : [fun::HexMap] add_property(asiz,529)
main.cpp:46 : Opening node [GEVHex]
main.cpp:38 : [GEVHex] add_property(name,0101)
main.cpp:38 : [GEVHex] add_property(id,0)
main.cpp:46 : Opening node [GEVHex]
main.cpp:38 : [GEVHex] add_property(name,0102)


(If you're wondering why i at-parse the lex file, it's because @WORD@ is =
much=20
asier to read and write than ([_a-zA-Z0-9]+), an @CLASSNAME@ can now be=20
mapped to: (@WORD@\:\:)?@WORD@
(i just added the ability to recursively @-parse tokens, so @-tokens can =
now=20
expand to other @-tokens.)

i don't yet know enough about lex to know if i'll need to also use yacc/b=
ison=20
to properly handle keys like:
    foo "this is a quoted string, \
          possibly multi-line."


--=20
----- st...@wa...
http://qub.sourceforge.net  http://libfunutil.sourceforge.net        =20
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http://stephan.rootonfire.org