patch to fix scs2pdf and other massive SCS overhaul -- LINUX5250

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Whew! I've finally finished reworking scs2* to more completely implement the SCS stream. I also fixed a bug in scs2pdf. I've changed the structure of the scs2* programs to use callbacks with scs.c acting as a sort of SCS toolkit.

I discovered a long standing bug in all the scs2* programs: They mishandle the AHPP command (scs2pdf uses this for bold which isn't always what is desired). When a spooled file contains underlines the programs misbehave. scs2pdf handles it by just making the underlines be bold, but the others are SOL for now.

scs2pdf had an additional AHPP bug in it that is fixed now (this is the bug that got me started on this whole process).

The patch is too large to post inline, so I've put it on my web server:

http://www.chowhouse.com/~james/tn5250-scs.patch

It should apply cleanly to current cvs (head) but there may have been some changes recently that I haven't tracked that could make trouble (there haven't been any changes to the files that I've been working on, so I'm optomistic).

Please test this out. Or, send me your raw SCS output for some of your tricky spool files and I'll test 'em myself (use outputcommand = `cat > /tmp/output.scs` ).

James Rich

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