Lines Matching refs:LAC

254 * LAC::                   Correct lookahead sets in the parser states.
5552         * Purpose: Enable LAC (lookahead correction) to improve syntax
5553           error handling.  *Note LAC::.
6142 message sometimes contains incorrect information if LAC is not enabled
6143 (*note LAC::).
7066 * LAC::                   Correct lookahead sets in the parser states.
7183      However, IELR parsers that use LAC are also able to achieve this
7185      For details and a few caveats of LAC, *note LAC::.
7192 File: bison.info,  Node: Default Reductions,  Next: LAC,  Prev: LR Table Construction,  Up: Tuning …
7250      Bison feature, LAC.  We discuss the effects of delayed syntax
7251      error detection and LAC more in the next section (*note LAC::).
7265 merging can cause the same effect anyway, and LAC fixes it in both
7266 cases, so future versions of Bison might drop this exception when LAC
7287 File: bison.info,  Node: LAC,  Next: Unreachable States,  Prev: Default Reductions,  Up: Tuning LR
7289 5.8.3 LAC
7309    LAC (Lookahead Correction) is a new mechanism within the parsing
7312 You can enable LAC with the `%define parse.lac' directive.
7315      Enable LAC to improve syntax error handling.
7323    Conceptually, the LAC mechanism is straight-forward.  Whenever the
7335    There is one subtlety about the use of LAC.  That is, when in a
7347    Thus, when LAC is in use, for some fixed decision of whether to
7351 the full language-recognition power of canonical LR and IELR, LAC at
7355    There are a few caveats to consider when using LAC:
7359      IELR plus LAC does have one shortcoming relative to canonical LR.
7360      Some parsers generated by Bison can loop infinitely.  LAC does not
7371      from the message.  Enabling LAC can increase the size of the list
7377      Because LAC requires many parse actions to be performed twice, it
7388      the performance penalty of LAC has proved insignificant for
7391    While the LAC algorithm shares techniques that have been recognized
7393 LAC, *note Denny 2010 May: Bibliography.
7396 File: bison.info,  Node: Unreachable States,  Prev: LAC,  Up: Tuning LR
9623 information (*note LAC::).
11227 LAC (Lookahead Correction)
11234      LAC::.
12004 * %define parse.lac:                     LAC.                 (line  29)
12355 * LAC <1>:                               LR Table Construction.
12357 * LAC <2>:                               LAC.                 (line   6)
12358 * LAC:                                   Default Reductions.  (line  54)
12392 * lookahead correction:                  LAC.                 (line   6)
12786 Node: LAC296912