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authorMarc Espie <espie@cvs.openbsd.org>2002-06-11 21:12:12 +0000
committerMarc Espie <espie@cvs.openbsd.org>2002-06-11 21:12:12 +0000
commitb1c15445b12ccbda5a402ec56b487665b69747ee (patch)
tree39735876bf91b2f6bf39bfb577853773ffc0f705 /usr.bin/login
parente7478c049fc780b84e5d9267b380f93757391a22 (diff)
This is the first step in sanitizing the conditional parser.
Change the conditional recognition algorithm: scan for a sequence of alphabetic characters, hash it, and compare it against a small table (using ohash functions). This makes Cond_Eval entry more logical, and allows for some shortcuts in recognizing .include, .for, .undef. This also means that conditionals must have an intervening blank between the keyword and the actual test, e.g., .ifA will no longer work. (but no-one actually uses this, and it's highly obfuscated) Okay miod@.
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