scan-gram.c

bison 2.0 主要可以用来做语法分析用的

      641,  664,  626,  625,  661,  640,  633,  634,  359,  297,
      622,  622,  619,  632,  621,  628,  624,  620,  614,  617,
      623,  622,  612,  623,  621,  618,  732,    0,    0,  396,
      606,  614,  601,  606,  602,  614,  600,  612,  633,  609,
      597,  602,    0,  595,  591,  603,  319,  602,  597,  588,
      599,  591,  583,  596,    0,  582,  365,  581,  593,  579,
        0,  583,    0,  582,  580,    0,  620,    0,    0,  570,
        0,  580,  585,  570,    0,  385,  570,  572,  386,  585,
      584,  583,  574,    0,  567,  575,  567,  562,  560,    0,

      559,  595,  570,  559,    0,  555,    0,  387,    0,  555,
      404,    0,  732,    0,  553,  553,  566,  548,  392,  551,
      552,  549,  553,  547,  548,  545,  559,  554,  544,  552,
        0,  541,  539,  553,  539,  534,  546,  411,  394,    0,
      532,  544,  532,  542,  527,  528,  563,  542,  529,  536,
      521,  522,  535,  521,  535,    0,  519,  521,  532,    0,
      558,  516,  516,  513,  512,  521,  508,  520,  523,  511,
      505,  515,  509,    0,    0,  507,  502,  500,    0,  514,
      541,  498,  497,  510,    0,  502,  495,  493,  505,    0,
        0,  498,  488,  496,  503,  498,  491,  527,  188,  495,

        0,  485,  477,  478,    0,  478,  474,  398,  481,  481,
      476,  486,  732,  487,  472,    0,  470,  478,    0,  471,
      476,    0,    0,    0,    0,  479,  410,  464,  456,  448,
        0,  443,  429,  404,  390,  398,    0,  403,  396,  393,
        0,  400,  397,  420,  383,  384,    0,  392,  362,  354,
      364,  348,    0,  732,  441,  448,  455,  462,  465,  471,
      477,  484,  488,  494,  346,  343,  328,  260,  501,  243,
      233,  203,  197,  138,   69,  507
    } ;

static yyconst short int yy_def[477] =
    {   0,
      454,    1,  455,  455,  455,  455,  456,  456,  455,  455,
      455,  455,  457,  457,  455,  455,  455,  455,  458,  458,
      455,   21,   21,   21,   21,   21,  454,  454,  454,  454,
      454,  454,  454,  454,  459,  454,  454,  454,  454,  460,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  461,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  462,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,

      463,  463,  463,  463,  463,  463,  454,  459,  454,  464,
      454,  465,  460,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  466,  454,  454,  454,
      454,  454,  454,  467,  454,  468,  454,  454,  454,  469,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      464,  465,  454,  454,  454,  454,  454,  454,  454,  454,
      461,  454,  470,  471,  468,  469,  454,  454,  454,  454,

      454,  454,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  454,  454,  472,  473,  454,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  454,  474,  475,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,

      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      454,  467,  454,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  454,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      454,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      476,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  476,  476,  463,

      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  454,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,  463,  463,  463,  463,  463,  463,  463,
      463,  463,  463,    0,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454
    } ;

static yyconst short int yy_nxt[790] =
    {   0,
       28,   29,   30,   29,   31,   28,   28,   32,   33,   28,
       34,   28,   35,   36,   37,   38,   38,   28,   39,   40,
       41,   28,   28,   28,   35,   35,   35,   28,   28,   28,
       35,   35,   35,   35,   35,   35,   35,   35,   35,   35,
       35,   35,   35,   35,   35,   35,   35,   35,   35,   35,
       35,   35,   35,   42,   43,   28,   28,   46,   46,   47,
       87,   47,   47,  109,   48,   48,   52,  110,  141,   52,
       47,  115,   45,   47,  313,  142,   49,  109,   49,   49,
      162,  110,   50,   50,   51,   51,  116,   49,  155,  163,
       49,   50,   53,   51,   50,   53,   51,   56,  156,   57,

       56,   47,   57,   67,   47,   68,   45,   59,   45,  210,
       59,   47,  173,   60,   47,   67,   60,   68,   49,  211,
      174,   49,   50,   58,   51,   50,   58,   51,   49,   69,
      146,   49,   50,   58,   51,   50,   58,   51,   62,   30,
       62,   69,  147,  312,   62,   30,   62,   63,   66,   71,
       64,  148,   71,   63,   65,   72,   64,   70,   72,  214,
       65,   74,   30,   74,  111,  111,  111,  109,  143,   70,
       75,  110,  144,   76,  215,   69,   47,   87,   69,   74,
       30,   74,  224,   77,   47,   45,  225,  145,   75,   45,
      413,   76,  399,   49,  117,  118,  117,   45,  111,  111,

      111,   49,  279,   70,   47,   45,   70,   46,  278,   78,
      112,   79,   80,   81,  121,  122,  121,   45,   82,  192,
      192,   49,  157,   45,   83,   45,  165,  158,   84,  115,
      454,   45,   50,   45,   51,  112,  219,  137,  239,  166,
      175,  123,  138,  167,  116,  139,  139,  139,  238,  176,
      140,   45,  169,   45,  149,  219,  123,  177,   85,  150,
       86,   88,  151,  151,  151,  195,   89,  170,  220,  243,
      171,  111,  111,  111,  185,  186,  185,  244,   89,   89,
       89,  117,  118,  117,   89,   89,   90,   89,   91,   92,
       93,   94,   89,   95,   89,   96,   97,   98,   99,  100,

      101,  102,  103,  104,  105,   89,  106,  107,  125,  188,
      122,  188,  125,  190,  191,  190,  237,  237,  126,  126,
      139,  139,  139,  139,  139,  139,  125,  141,  260,  127,
      295,  261,  125,  194,  142,  128,  129,  197,  198,  197,
      130,  199,  200,  199,  201,  202,  201,  131,  193,  295,
      132,  182,  133,  134,  135,  136,  151,  151,  151,  151,
      151,  151,  204,  185,  186,  185,  205,  117,  118,  117,
      188,  122,  188,  188,  122,  188,  304,  206,  190,  191,
      190,  197,  198,  197,  199,  200,  199,  143,  201,  202,
      201,  144,  146,  258,  453,  304,  318,  321,  336,  452,

      259,  451,  137,  343,  147,  362,  145,  138,  450,  420,
      139,  139,  139,  148,  361,  318,  321,  336,  338,  338,
      338,  432,  343,  449,  362,  338,  338,  338,  420,  448,
      447,  446,  445,  444,  443,  442,  441,  440,  439,  438,
      432,   45,   45,   45,   45,   45,   45,   45,   54,   54,
       54,   54,   54,   54,   54,   61,   61,   61,   61,   61,
       61,   61,   73,   73,   73,   73,   73,   73,   73,  108,
      108,  113,  437,  113,  113,  113,  113,  120,  120,  436,
      120,  120,  120,  120,  124,  124,  124,  124,  124,  124,
      124,  153,  153,  153,  181,  435,  181,  181,  181,  181,

      181,  196,  434,  196,  196,  196,  196,  398,  433,  398,
      398,  398,  398,  398,  431,  430,  429,  428,  427,  426,
      425,  424,  423,  422,  421,  419,  418,  417,  416,  415,
      414,  399,  412,  411,  410,  409,  408,  407,  406,  405,
      404,  403,  402,  401,  400,  399,  397,  396,  395,  394,
      393,  392,  391,  390,  389,  388,  387,  386,  385,  384,
      383,  382,  381,  380,  379,  378,  377,  376,  375,  374,
      373,  372,  371,  370,  369,  368,  367,  366,  365,  364,
      363,  360,  359,  358,  357,  356,  355,  354,  353,  352,
      351,  350,  349,  348,  347,  346,  345,  344,  342,  341,

      340,  339,  337,  335,  334,  333,  332,  331,  330,  329,
      328,  327,  326,  325,  324,  323,  322,  320,  319,  317,
      316,  315,  314,  311,  310,  309,  308,  307,  306,  305,
      303,  302,  301,  300,  299,  298,  297,  296,  294,  293,
      292,  291,  290,  289,  288,  287,  286,  285,  284,  283,
      282,  281,  280,  277,  276,  275,  274,  273,  272,  271,
      270,  269,  268,  267,  266,  265,  264,  263,  262,  257,
      256,  255,  254,  253,  252,  251,  250,  249,  248,  247,
      246,  245,  242,  241,  240,  236,  235,  234,  233,  232,
      231,  230,  229,  228,  227,  226,  223,  222,  221,  218,

      217,  216,  213,  212,  209,  208,  207,  203,  189,  187,
      184,  183,  180,  179,  178,  172,  168,  164,  161,  160,
      159,  154,  152,  114,  114,  119,  114,  454,   55,   55,
       44,   27,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454
    } ;

static yyconst short int yy_chk[790] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    3,    4,   23,
       23,    3,    4,   36,    3,    4,    5,   36,   80,    6,
        5,   48,   23,    6,  475,   80,   23,   64,    3,    4,
       96,   64,    3,    4,    3,    4,   48,    5,   91,   96,
        6,    5,    5,    5,    6,    6,    6,    9,   91,    9,

       10,    9,   10,   15,   10,   15,   23,   11,   23,  159,
       12,   11,  102,   11,   12,   16,   12,   16,    9,  159,
      102,   10,    9,    9,    9,   10,   10,   10,   11,   15,
       83,   12,   11,   11,   11,   12,   12,   12,   13,   13,
       13,   16,   83,  474,   14,   14,   14,   13,   14,   17,
       13,   83,   18,   14,   13,   17,   14,   15,   18,  162,
       14,   19,   19,   19,   38,   38,   38,   76,   82,   16,
       19,   76,   82,   19,  162,   17,   24,   24,   18,   20,
       20,   20,  170,   20,   25,   25,  170,   82,   20,   24,
      399,   20,  399,   24,   53,   53,   53,   25,   37,   37,

       37,   25,  473,   17,   26,   26,   18,   21,  472,   21,
       37,   21,   21,   21,   58,   58,   58,   26,   21,  126,
      126,   26,   92,   24,   21,   24,   98,   92,   21,  186,
      191,   25,   21,   25,   21,   37,  166,   79,  471,   98,
      103,   58,   79,   98,  186,   79,   79,   79,  470,  103,
       79,   26,  100,   26,   84,  166,  191,  103,   21,   84,
       21,   32,   84,   84,   84,  468,   32,  100,  166,  205,
      100,  111,  111,  111,  116,  116,  116,  205,   32,   32,
       32,  117,  117,  117,   32,   32,   32,   32,   32,   32,
       32,   32,   32,   32,   32,   32,   32,   32,   32,   32,

       32,   32,   32,   32,   32,   32,   32,   32,   69,  121,
      121,  121,   69,  123,  123,  123,  192,  192,   69,   69,
      138,  138,  138,  139,  139,  139,   69,  198,  220,   69,
      257,  220,   69,  467,  198,   69,   69,  142,  142,  142,
       69,  145,  145,  145,  148,  148,  148,   69,  466,  257,
       69,  465,   69,   69,   69,   69,  150,  150,  150,  151,
      151,  151,  155,  185,  185,  185,  155,  187,  187,  187,
      188,  188,  188,  189,  189,  189,  267,  155,  190,  190,
      190,  197,  197,  197,  199,  199,  199,  200,  201,  201,
      201,  200,  202,  219,  452,  267,  286,  289,  308,  451,

      219,  450,  240,  319,  202,  339,  200,  240,  449,  408,
      240,  240,  240,  202,  338,  286,  289,  308,  311,  311,
      311,  427,  319,  448,  339,  338,  338,  338,  408,  446,
      445,  444,  443,  442,  440,  439,  438,  436,  435,  434,
      427,  455,  455,  455,  455,  455,  455,  455,  456,  456,
      456,  456,  456,  456,  456,  457,  457,  457,  457,  457,
      457,  457,  458,  458,  458,  458,  458,  458,  458,  459,
      459,  460,  433,  460,  460,  460,  460,  461,  461,  432,
      461,  461,  461,  461,  462,  462,  462,  462,  462,  462,
      462,  463,  463,  463,  464,  430,  464,  464,  464,  464,

      464,  469,  429,  469,  469,  469,  469,  476,  428,  476,
      476,  476,  476,  476,  426,  421,  420,  418,  417,  415,
      414,  412,  411,  410,  409,  407,  406,  404,  403,  402,
      400,  398,  397,  396,  395,  394,  393,  392,  389,  388,
      387,  386,  384,  383,  382,  381,  380,  378,  377,  376,
      373,  372,  371,  370,  369,  368,  367,  366,  365,  364,
      363,  362,  361,  359,  358,  357,  355,  354,  353,  352,
      351,  350,  349,  348,  347,  346,  345,  344,  343,  342,
      341,  337,  336,  335,  334,  333,  332,  330,  329,  328,
      327,  326,  325,  324,  323,  322,  321,  320,  318,  317,

      316,  315,  310,  306,  304,  303,  302,  301,  299,  298,
      297,  296,  295,  293,  292,  291,  290,  288,  287,  284,
      283,  282,  280,  277,  275,  274,  272,  270,  269,  268,
      266,  264,  263,  262,  261,  260,  259,  258,  256,  255,
      254,  252,  251,  250,  249,  248,  247,  246,  245,  244,
      243,  242,  241,  236,  235,  234,  233,  232,  231,  230,
      229,  228,  227,  226,  225,  224,  223,  222,  221,  218,
      217,  216,  215,  214,  213,  212,  211,  210,  209,  208,
      207,  206,  204,  203,  196,  184,  180,  179,  178,  177,
      176,  175,  174,  173,  172,  171,  169,  168,  167,  165,

      164,  163,  161,  160,  158,  157,  156,  154,  122,  118,
      114,  113,  106,  105,  104,  101,   99,   97,   95,   94,
       93,   90,   87,   77,   66,   55,   44,   27,    8,    7,
        2,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454,  454,
      454,  454,  454,  454,  454,  454,  454,  454,  454
    } ;

static yy_state_type yy_last_accepting_state;
static char *yy_last_accepting_cpos;

extern int yy_flex_debug;
int yy_flex_debug = 1;

static yyconst short int yy_rule_linenum[106] =
    {   0,
      162,  163,  164,  165,  173,  184,  185,  186,  187,  188,
      189,  190,  191,  192,  193,  194,  195,  196,  197,  198,
      199,  200,  201,  202,  203,  204,  205,  206,  207,  208,
      209,  210,  211,  212,  213,  214,  215,  216,  217,  218,
      219,  220,  221,  222,  224,  228,  229,  230,  232,  239,
      243,  249,  252,  255,  258,  267,  275,  282,  299,  305,
      326,  327,  338,  349,  350,  362,  371,  382,  396,  402,
      412,  422,  434,  435,  436,  437,  438,  439,  440,  443,
      445,  454,  466,  471,  472,  478,  479,  490,  496,  502,
      508,  524,  558,  559,  560,  595,  597,  598,  610,  645,

      646,  647,  648,  656,  657
    } ;

/* The intent behind this definition is that it'll catch
 * any uses of REJECT which flex missed.
 */
#define REJECT reject_used_but_not_detected
#define yymore() yymore_used_but_not_detected
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
char *yytext;
#line 1 "scan-gram.l"
#define INITIAL 0
/* Bison Grammar Scanner                             -*- C -*-

   Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.

   This file is part of Bison, the GNU Compiler Compiler.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307  USA
*/
#define YY_NO_UNPUT 1
#define YY_NEVER_INTERACTIVE 1
#line 27 "scan-gram.l"
#include "system.h"

#include <mbswidth.h>
#include <get-errno.h>
#include <quote.h>

#include "complain.h"
#include "files.h"
#include "getargs.h"
#include "gram.h"
#include "reader.h"
#include "uniqstr.h"

#define YY_USER_INIT					\
  do							\
    {							\
      scanner_cursor.file = current_file;		\
      scanner_cursor.line = 1;				\
      scanner_cursor.column = 1;			\
      code_start = scanner_cursor;			\
    }							\
  while (0)

/* Location of scanner cursor.  */
boundary scanner_cursor;

static void adjust_location (location *, char const *, size_t);
#define YY_USER_ACTION  adjust_location (loc, yytext, yyleng);

static size_t no_cr_read (FILE *, char *, size_t);
#define YY_INPUT(buf, result, size) ((result) = no_cr_read (yyin, buf, size))


/* OBSTACK_FOR_STRING -- Used to store all the characters that we need to
   keep (to construct ID, STRINGS etc.).  Use the following macros to
   use it.

   Use STRING_GROW to append what has just been matched, and
   STRING_FINISH to end the string (it puts the ending 0).
   STRING_FINISH also stores this string in LAST_STRING, which can be
   used, and which is used by STRING_FREE to free the last string.  */

static struct obstack obstack_for_string;

/* A string representing the most recently saved token.  */
static char *last_string;


#define STRING_GROW   \
  obstack_grow (&obstack_for_string, yytext, yyleng)

#define STRING_FINISH					\
  do {							\
    obstack_1grow (&obstack_for_string, '\0');		\
    last_string = obstack_finish (&obstack_for_string);	\
  } while (0)

#define STRING_FREE \
  obstack_free (&obstack_for_string, last_string)

void
scanner_last_string_free (void)
{
  STRING_FREE;
}

/* Within well-formed rules, RULE_LENGTH is the number of values in
   the current rule so far, which says where to find `$0' with respect
   to the top of the stack.  It is not the same as the rule->length in
   the case of mid rule actions.

   Outside of well-formed rules, RULE_LENGTH has an undefined value.  */
static int rule_length;

static void handle_dollar (int token_type, char *cp, location loc);
static void handle_at (int token_type, char *cp, location loc);
static void handle_syncline (char *args);
static unsigned long int scan_integer (char const *p, int base, location loc);
static int convert_ucn_to_byte (char const *hex_text);
static void unexpected_eof (boundary, char const *);
static void unexpected_newline (boundary, char const *);

#define SC_COMMENT 1
#define SC_LINE_COMMENT 2
#define SC_YACC_COMMENT 3

#define SC_STRING 4
#define SC_CHARACTER 5

#define SC_AFTER_IDENTIFIER 6

#define SC_ESCAPED_STRING 7
#define SC_ESCAPED_CHARACTER 8

#define SC_PRE_CODE 9
#define SC_BRACED_CODE 10
#define SC_PROLOGUE 11
#define SC_EPILOGUE 12

/* POSIX says that a tag must be both an id and a C union member, but
   historically almost any character is allowed in a tag.  We disallow
   NUL and newline, as this simplifies our implementation.  */
/* Zero or more instances of backslash-newline.  Following GCC, allow
   white space between the backslash and the newline.  */
#line 869 "scan-gram.c"

/* Macros after this point can all be overridden by user definitions in
 * section 1.
 */

#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap YY_PROTO(( void ));
#else
extern int yywrap YY_PROTO(( void ));
#endif
#endif