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use aligned flex tables

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~2% speedup on parsing without eval, less (but still significant) on
system eval. having flex generate faster parsers leads to very strange
misparses. maybe re2c is worth investigating.

before:

  Time (mean ± σ):      4.260 s ±  0.003 s    [User: 3.754 s, System: 0.505 s]
  Range (min … max):    4.257 s …  4.266 s    10 runs

after:

  Time (mean ± σ):      4.231 s ±  0.004 s    [User: 3.725 s, System: 0.504 s]
  Range (min … max):    4.226 s …  4.240 s    10 runs
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pennae 2023-12-10 12:59:51 +01:00
parent cc4038d541
commit 2e0321912a
1 changed files with 1 additions and 0 deletions
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src/libexpr/lexer.l
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@ -1,4 +1,5 @@
%option reentrant bison-bridge bison-locations %option reentrant bison-bridge bison-locations
%option align
%option noyywrap %option noyywrap
%option never-interactive %option never-interactive
%option stack %option stack