view tests/agcl/bugs/good/wraperror.cpp @ 21:1c9dac05d040

Add lint-style FALLTHROUGH annotations to fallthrough cases. (in the parse engine and thus the output code) Document this, because the old output causes warnings with gcc10.
author David A. Holland
date Mon, 13 Jun 2022 00:04:38 -0400
parents 13d2b8934445
children
line wrap: on
line source

/*
 * AnaGram, A System for Syntax Directed Programming
 * Copyright 2006 David A. Holland. All Rights Reserved.
 * See the file COPYING for license and usage terms.
 *
 * wraperror: test for wrappers and error token together
 */

#include <stdio.h>


struct thingy {
  const char *name;
  int val;

  void g(const char *n, int v) { name = n; val = v; }
  void g(const thingy &t) { name = t.name; val = t.val; }

  void m(const char *msg) {
    printf("%s %s: %p, %d\n", msg, name, this, val);
  }

  thingy(const char *n, int v)      { g(n,v); m("Constructed new"); }
  thingy(const thingy &t)           { g(t);   m("Copied"); }
  void operator = (const thingy &t) { g(t);   m("Assigned"); }
  ~thingy()                         {         m("Destroyed"); }
};

struct foo : public thingy {
  foo(int v) : thingy("foo", v) {}
  foo(const foo &f) : thingy(f) {}
  void operator = (const foo &f) { thingy::operator = (f); }
  ~foo() {}
};

struct bar : public thingy {
  bar(int v) : thingy("bar", v) {}
  bar(const bar &f) : thingy(f) {}
  void operator = (const bar &f) { thingy::operator = (f); }
  ~bar() {}
};

void do_foo(foo &f) {
  f.m("do_foo");
}

void do_bar(bar &b) {
  b.m("do_bar");
}


/*
 * AnaGram, A System for Syntax Directed Programming
 * File generated by: ...
 *
 * AnaGram Parsing Engine
 * Copyright 1993-2002 Parsifal Software. All Rights Reserved.
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 *    claim that you wrote the original software. If you use this software
 *    in a product, an acknowledgment in the product documentation would be
 *    appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 */

#ifndef WRAPERROR_H
#include "wraperror.h"
#endif

#ifndef WRAPERROR_H
#error Mismatched header file
#endif

#include <ctype.h>
#include <stdio.h>

#define RULE_CONTEXT (&((PCB).cs[(PCB).ssx]))
#define ERROR_CONTEXT ((PCB).cs[(PCB).error_frame_ssx])
#define CONTEXT ((PCB).cs[(PCB).ssx])



wraperror_pcb_type wraperror_pcb;
#define PCB wraperror_pcb
static void ag_delete_wrappers(void);
#ifndef DELETE_WRAPPERS
#define DELETE_WRAPPERS ag_delete_wrappers()
#endif

/*  Line -, wraperror.syn */
int main() {
   wraperror();
   return 0;
}


#ifndef CONVERT_CASE
#define CONVERT_CASE(c) (c)
#endif
#ifndef TAB_SPACING
#define TAB_SPACING 8
#endif

static inline void ag_rp_1(foo &f) {
/* Line -, wraperror.syn */
  do_foo(f);
}

static inline void ag_rp_2(bar b) {
/* Line -, wraperror.syn */
  do_bar(b);
}

static inline foo ag_rp_3(void) {
/* Line -, wraperror.syn */
  return foo(1);
}

static inline bar ag_rp_4(void) {
/* Line -, wraperror.syn */
  return bar(2);
}


#define READ_COUNTS 
#define WRITE_COUNTS 
#undef V
#define V(i,t) (*t (&(PCB).vs[(PCB).ssx + i]))
#undef VS
#define VS(i) (PCB).vs[(PCB).ssx + i]

#ifndef GET_CONTEXT
#define GET_CONTEXT CONTEXT = (PCB).input_context
#endif

typedef enum {
  ag_action_1,
  ag_action_2,
  ag_action_3,
  ag_action_4,
  ag_action_5,
  ag_action_6,
  ag_action_7,
  ag_action_8,
  ag_action_9,
  ag_action_10,
  ag_action_11,
  ag_action_12
} ag_parser_action;


#ifndef NULL_VALUE_INITIALIZER
#define NULL_VALUE_INITIALIZER = { 0 }
#endif


static const char ag_wdf[] = {
  0, 0, 0, 0, 4, 0, 0, 0, 0
};

#undef  VW
#define VW(i,t) *(t) (&(PCB).vs[(PCB).ssx + (i)])
#undef  VNO
#define VNO new(&(PCB).vs[(PCB).ssx])
#undef  VRO
#define VRO(to,v) ag_replace_object((to) &(PCB).vs[(PCB).ssx], v)
#undef  VWD
#define VWD(i,t) ag_delete_object((t) &(PCB).vs[(PCB).ssx + (i)]);
#undef  VDO
#define VDO(to, v) ag_delete_object((to) &(PCB).vs[(PCB).ssx], v)

template <class NewObject, class OldObject>
static inline void ag_replace_object(AgObjectWrapper<OldObject> *p, const NewObject &o) {
  delete p;
  new(p) AgObjectWrapper<NewObject >(o);
}

template <class Object>
static inline void ag_delete_object(AgObjectWrapper<Object> *p) {
  delete p;
}

template <class NewObject, class OldObject>
static inline const NewObject &ag_delete_object(AgObjectWrapper<OldObject> *p, const NewObject &o) {
  delete p;
  return o;
}


#undef AG_WRAP_4
#define AG_WRAP_4 AgObjectWrapper<foo >

static void ag_delete_wrappers(void) {
  int sn = (PCB).sn;
  int sx = (PCB).ssx;
  while (sx--) {
    switch (ag_wdf[sn]) {
      case 4: ag_delete_object((AG_WRAP_4 *) &(PCB).vs[sx]); break;
      default: break;
    }
    sn = (PCB).ss[sx];
  }
}

void ag_delete_object(void) {
  int sn = PCB.sn;
  (PCB).sn = (PCB).ss[--(PCB).ssx];
  switch (ag_wdf[sn]) {
    case 4:  {
      AG_WRAP_4 *wrapper = (AG_WRAP_4 *) (&(PCB).vs[(PCB).ssx]);
      delete wrapper;
       break;
     }
    default: break;
  }
}

static wraperror_vs_type const ag_null_value NULL_VALUE_INITIALIZER;

static const unsigned char ag_rpx[] = {
    0,  0,  0,  0,  0,  1,  2,  0,  0,  3,  4
};
#define AG_TCV(x) (((int)(x) >= 0 && (int)(x) <= 255) ? ag_tcv[(x)] : 0)

static const unsigned char ag_tcv[] = {
    3,  0,  0,  0,  0,  0,  0,  0,  0,  0,  7,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0, 13, 12,  0,  0,  0, 10,  0,  0,  0,  0,  0,
    0,  0,  0, 11,  0,  0, 14,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0
};

#ifndef SYNTAX_ERROR
#define SYNTAX_ERROR fprintf(stderr,"%s, line %d, column %d\n", \
  (PCB).error_message, (PCB).line, (PCB).column)
#endif

#ifndef FIRST_LINE
#define FIRST_LINE 1
#endif

#ifndef FIRST_COLUMN
#define FIRST_COLUMN 1
#endif

#ifndef PARSER_STACK_OVERFLOW
#define PARSER_STACK_OVERFLOW {fprintf(stderr, \
   "\nParser stack overflow, line %d, column %d\n",\
   (PCB).line, (PCB).column);}
#endif

#ifndef REDUCTION_TOKEN_ERROR
#define REDUCTION_TOKEN_ERROR {fprintf(stderr, \
    "\nReduction token error, line %d, column %d\n", \
    (PCB).line, (PCB).column);}
#endif


#ifndef GET_INPUT
#define GET_INPUT ((PCB).input_code = getchar())
#endif


#ifndef AG_NEWLINE
#define AG_NEWLINE 10
#endif

#ifndef AG_RETURN
#define AG_RETURN 13
#endif

#ifndef AG_FORMFEED
#define AG_FORMFEED 12
#endif

#ifndef AG_TABCHAR
#define AG_TABCHAR 9
#endif

static void ag_track(void) {
  switch ((PCB).input_code) {
  case AG_NEWLINE:
    (PCB).column = 1, (PCB).line++;
  case AG_RETURN:
  case AG_FORMFEED:
    break;
  case AG_TABCHAR:
    (PCB).column += (TAB_SPACING) - ((PCB).column - 1) % (TAB_SPACING);
    break;
  default:
    (PCB).column++;
  }
  (PCB).read_flag = 1;
}


static void ag_prot(void) {
  int ag_k;
  ag_k = 128 - ++(PCB).btsx;
  if (ag_k <= (PCB).ssx) {
    (PCB).exit_flag = AG_STACK_ERROR_CODE;
    PARSER_STACK_OVERFLOW;
    return;
  }
  (PCB).bts[(PCB).btsx] = (PCB).sn;
  (PCB).bts[ag_k] = (PCB).ssx;
  (PCB).vs[ag_k] = (PCB).vs[(PCB).ssx];
  (PCB).ss[ag_k] = (PCB).ss[(PCB).ssx];
}

static void ag_undo(void) {
  if ((PCB).drt == -1) return;
  while ((PCB).btsx) {
    int ag_k = 128 - (PCB).btsx;
    (PCB).sn = (PCB).bts[(PCB).btsx--];
    (PCB).ssx = (PCB).bts[ag_k];
    (PCB).vs[(PCB).ssx] = (PCB).vs[ag_k];
    (PCB).ss[(PCB).ssx] = (PCB).ss[ag_k];
  }
  (PCB).token_number = (wraperror_token_type) (PCB).drt;
  (PCB).ssx = (PCB).dssx;
  (PCB).sn = (PCB).dsn;
  (PCB).drt = -1;
}


static const unsigned char ag_tstt[] = {
12,10,9,7,0,1,2,4,5,6,8,
13,0,
11,0,
7,0,
7,0,
12,10,9,7,3,0,4,6,8,
3,0,
14,0,
11,0,

};


static unsigned const char ag_astt[34] = {
  1,1,1,1,7,0,1,1,1,1,1,1,7,1,7,2,7,2,7,1,1,3,9,5,7,3,1,1,3,7,2,7,2,7
};


static const unsigned char ag_pstt[] = {
1,2,5,5,0,0,6,5,5,4,3,
7,1,
8,2,
6,3,
5,4,
1,2,3,3,4,5,3,4,3,
1,6,
10,7,
9,8,

};


static const unsigned char ag_sbt[] = {
     0,  11,  13,  15,  17,  19,  28,  30,  32,  34
};


static const unsigned char ag_sbe[] = {
     4,  12,  14,  16,  18,  24,  29,  31,  33,  34
};


static const unsigned char ag_fl[] = {
  1,2,1,2,1,2,2,1,1,3,3
};

static const unsigned char ag_ptt[] = {
    0,  1,  5,  5,  2,  4,  4,  4,  4,  6,  8
};


static void ag_ra(void)
{
  switch(ag_rpx[(PCB).ag_ap]) {
    case 1: ag_rp_1(VW(0, AG_WRAP_4 *)); 
            VWD(0, AG_WRAP_4 *); break;
    case 2: ag_rp_2(V(0,(bar *))); break;
    case 3: VNO AG_WRAP_4(ag_rp_3()); break;
    case 4: V(0,(bar *)) = ag_rp_4(); break;
  }
}

#define TOKEN_NAMES wraperror_token_names
const char *const wraperror_token_names[15] = {
  "file",
  "file",
  "declarations",
  "eof",
  "declaration",
  "",
  "foo decl",
  "'\\n'",
  "bar decl",
  "error",
  "'f'",
  "'o'",
  "'b'",
  "'a'",
  "'r'",

};

#ifndef MISSING_FORMAT
#define MISSING_FORMAT "Missing %s"
#endif
#ifndef UNEXPECTED_FORMAT
#define UNEXPECTED_FORMAT "Unexpected %s"
#endif
#ifndef UNNAMED_TOKEN
#define UNNAMED_TOKEN "input"
#endif


static void ag_diagnose(void) {
  int ag_snd = (PCB).sn;
  int ag_k = ag_sbt[ag_snd];

  if (*TOKEN_NAMES[ag_tstt[ag_k]] && ag_astt[ag_k + 1] == ag_action_8) {
    sprintf((PCB).ag_msg, MISSING_FORMAT, TOKEN_NAMES[ag_tstt[ag_k]]);
  }
  else if (ag_astt[ag_sbe[(PCB).sn]] == ag_action_8
          && (ag_k = (int) ag_sbe[(PCB).sn] + 1) == (int) ag_sbt[(PCB).sn+1] - 1
          && *TOKEN_NAMES[ag_tstt[ag_k]]) {
    sprintf((PCB).ag_msg, MISSING_FORMAT, TOKEN_NAMES[ag_tstt[ag_k]]);
  }
  else if ((PCB).token_number && *TOKEN_NAMES[(PCB).token_number]) {
    sprintf((PCB).ag_msg, UNEXPECTED_FORMAT, TOKEN_NAMES[(PCB).token_number]);
  }
  else if (isprint(((PCB).input_code)) && ((PCB).input_code) != '\\') {
    char buf[20];
    sprintf(buf, "\'%c\'", (char) ((PCB).input_code));
    sprintf((PCB).ag_msg, UNEXPECTED_FORMAT, buf);
  }
  else sprintf((PCB).ag_msg, UNEXPECTED_FORMAT, UNNAMED_TOKEN);
  (PCB).error_message = (PCB).ag_msg;


}
static int ag_action_1_r_proc(void);
static int ag_action_2_r_proc(void);
static int ag_action_3_r_proc(void);
static int ag_action_4_r_proc(void);
static int ag_action_1_s_proc(void);
static int ag_action_3_s_proc(void);
static int ag_action_1_proc(void);
static int ag_action_2_proc(void);
static int ag_action_3_proc(void);
static int ag_action_4_proc(void);
static int ag_action_5_proc(void);
static int ag_action_6_proc(void);
static int ag_action_7_proc(void);
static int ag_action_8_proc(void);
static int ag_action_9_proc(void);
static int ag_action_10_proc(void);
static int ag_action_11_proc(void);
static int ag_action_8_proc(void);


static int (*const  ag_r_procs_scan[])(void) = {
  ag_action_1_r_proc,
  ag_action_2_r_proc,
  ag_action_3_r_proc,
  ag_action_4_r_proc
};

static int (*const  ag_s_procs_scan[])(void) = {
  ag_action_1_s_proc,
  ag_action_2_r_proc,
  ag_action_3_s_proc,
  ag_action_4_r_proc
};

static int (*const  ag_gt_procs_scan[])(void) = {
  ag_action_1_proc,
  ag_action_2_proc,
  ag_action_3_proc,
  ag_action_4_proc,
  ag_action_5_proc,
  ag_action_6_proc,
  ag_action_7_proc,
  ag_action_8_proc,
  ag_action_9_proc,
  ag_action_10_proc,
  ag_action_11_proc,
  ag_action_8_proc
};


static int ag_action_1_er_proc(void);
static int ag_action_2_er_proc(void);
static int ag_action_3_er_proc(void);
static int ag_action_4_er_proc(void);

static int (*const  ag_er_procs_scan[])(void) = {
  ag_action_1_er_proc,
  ag_action_2_er_proc,
  ag_action_3_er_proc,
  ag_action_4_er_proc
};


static void ag_error_resynch(void) {
  int ag_k;
  int ag_ssx = (PCB).ssx;

  ag_diagnose();
  SYNTAX_ERROR;
  if ((PCB).exit_flag != AG_RUNNING_CODE) return;
  while (1) {
    ag_k = ag_sbt[(PCB).sn];
    while (ag_tstt[ag_k] != 9 && ag_tstt[ag_k]) ag_k++;
    if (ag_tstt[ag_k] || (PCB).ssx == 0) break;
    ag_delete_object();
  }
  if (ag_tstt[ag_k] == 0) {
    (PCB).sn = PCB.ss[(PCB).ssx = ag_ssx];
    (PCB).exit_flag = AG_SYNTAX_ERROR_CODE;
    return;
  }
  ag_k = ag_sbt[(PCB).sn];
  while (ag_tstt[ag_k] != 9 && ag_tstt[ag_k]) ag_k++;
  (PCB).ag_ap = ag_pstt[ag_k];
  (ag_er_procs_scan[ag_astt[ag_k]])();
  while (1) {
    ag_k = ag_sbt[(PCB).sn];
    while (ag_tstt[ag_k] != (unsigned char) (PCB).token_number && ag_tstt[ag_k])
      ag_k++;
    if (ag_tstt[ag_k] && ag_astt[ag_k] != ag_action_10) break;
    if ((PCB).token_number == 3)
       {(PCB).exit_flag = AG_SYNTAX_ERROR_CODE; return;}
    ag_track();
    if ((PCB).read_flag) {
      (PCB).read_flag = 0;
      GET_INPUT;
    };
    (PCB).token_number = (wraperror_token_type) AG_TCV((PCB).input_code);
  }
}


static int ag_action_10_proc(void) {
  int ag_t = (PCB).token_number;
  (PCB).btsx = 0, (PCB).drt = -1;
  do {
    ag_track();
    if ((PCB).read_flag) {
      (PCB).read_flag = 0;
      GET_INPUT;
    };
    (PCB).token_number = (wraperror_token_type) AG_TCV((PCB).input_code);
  } while ((PCB).token_number == (wraperror_token_type) ag_t);
  return 1;
}

static int ag_action_11_proc(void) {
  int ag_t = (PCB).token_number;

  (PCB).btsx = 0, (PCB).drt = -1;
  do {
    (*(int *) &(PCB).vs[(PCB).ssx]) = (PCB).input_code;
    (PCB).ssx--;
    ag_track();
    ag_ra();
    if ((PCB).exit_flag != AG_RUNNING_CODE) return 0;
    (PCB).ssx++;
    if ((PCB).read_flag) {
      (PCB).read_flag = 0;
      GET_INPUT;
    };
    (PCB).token_number = (wraperror_token_type) AG_TCV((PCB).input_code);
  }
  while ((PCB).token_number == (wraperror_token_type) ag_t);
  return 1;
}

static int ag_action_3_r_proc(void) {
  int ag_sd = ag_fl[(PCB).ag_ap] - 1;
  if (ag_sd) (PCB).sn = (PCB).ss[(PCB).ssx -= ag_sd];
  (PCB).btsx = 0, (PCB).drt = -1;
  (PCB).reduction_token = (wraperror_token_type) ag_ptt[(PCB).ag_ap];
  ag_ra();
  return (PCB).exit_flag == AG_RUNNING_CODE;
}

static int ag_action_3_s_proc(void) {
  int ag_sd = ag_fl[(PCB).ag_ap] - 1;
  if (ag_sd) (PCB).sn = (PCB).ss[(PCB).ssx -= ag_sd];
  (PCB).btsx = 0, (PCB).drt = -1;
  (PCB).reduction_token = (wraperror_token_type) ag_ptt[(PCB).ag_ap];
  ag_ra();
  return (PCB).exit_flag == AG_RUNNING_CODE;
}

static int ag_action_4_r_proc(void) {
  int ag_sd = ag_fl[(PCB).ag_ap] - 1;
  if (ag_sd) (PCB).sn = (PCB).ss[(PCB).ssx -= ag_sd];
  (PCB).reduction_token = (wraperror_token_type) ag_ptt[(PCB).ag_ap];
  return 1;
}

static int ag_action_2_proc(void) {
  (PCB).btsx = 0, (PCB).drt = -1;
  if ((PCB).ssx >= 128) {
    (PCB).exit_flag = AG_STACK_ERROR_CODE;
    PARSER_STACK_OVERFLOW;
  }
  (*(int *) &(PCB).vs[(PCB).ssx]) = (PCB).input_code;
  (PCB).ss[(PCB).ssx] = (PCB).sn;
  (PCB).ssx++;
  (PCB).sn = (PCB).ag_ap;
  ag_track();
  return 0;
}

static int ag_action_9_proc(void) {
  if ((PCB).drt == -1) {
    (PCB).drt=(PCB).token_number;
    (PCB).dssx=(PCB).ssx;
    (PCB).dsn=(PCB).sn;
  }
  ag_prot();
  (PCB).vs[(PCB).ssx] = ag_null_value;
  (PCB).ss[(PCB).ssx] = (PCB).sn;
  (PCB).ssx++;
  (PCB).sn = (PCB).ag_ap;
  return (PCB).exit_flag == AG_RUNNING_CODE;
}

static int ag_action_2_r_proc(void) {
  (PCB).ssx++;
  (PCB).sn = (PCB).ag_ap;
  return 0;
}

static int ag_action_7_proc(void) {
  --(PCB).ssx;
  (PCB).exit_flag = AG_SUCCESS_CODE;
  return 0;
}

static int ag_action_1_proc(void) {
  ag_track();
  (PCB).exit_flag = AG_SUCCESS_CODE;
  return 0;
}

static int ag_action_1_r_proc(void) {
  (PCB).exit_flag = AG_SUCCESS_CODE;
  return 0;
}

static int ag_action_1_s_proc(void) {
  (PCB).exit_flag = AG_SUCCESS_CODE;
  return 0;
}

static int ag_action_4_proc(void) {
  int ag_sd = ag_fl[(PCB).ag_ap] - 1;
  (PCB).reduction_token = (wraperror_token_type) ag_ptt[(PCB).ag_ap];
  (PCB).btsx = 0, (PCB).drt = -1;
  (*(int *) &(PCB).vs[(PCB).ssx]) = (PCB).input_code;
  if (ag_sd) (PCB).sn = (PCB).ss[(PCB).ssx -= ag_sd];
  else (PCB).ss[(PCB).ssx] = (PCB).sn;
  ag_track();
  while ((PCB).exit_flag == AG_RUNNING_CODE) {
    unsigned ag_t1 = ag_sbe[(PCB).sn] + 1;
    unsigned ag_t2 = ag_sbt[(PCB).sn+1] - 1;
    do {
      unsigned ag_tx = (ag_t1 + ag_t2)/2;
      if (ag_tstt[ag_tx] < (unsigned char)(PCB).reduction_token) ag_t1 = ag_tx + 1;
      else ag_t2 = ag_tx;
    } while (ag_t1 < ag_t2);
    (PCB).ag_ap = ag_pstt[ag_t1];
    if ((ag_s_procs_scan[ag_astt[ag_t1]])() == 0) break;
  }
  return 0;
}

static int ag_action_3_proc(void) {
  int ag_sd = ag_fl[(PCB).ag_ap] - 1;
  (PCB).btsx = 0, (PCB).drt = -1;
  (*(int *) &(PCB).vs[(PCB).ssx]) = (PCB).input_code;
  if (ag_sd) (PCB).sn = (PCB).ss[(PCB).ssx -= ag_sd];
  else (PCB).ss[(PCB).ssx] = (PCB).sn;
  ag_track();
  (PCB).reduction_token = (wraperror_token_type) ag_ptt[(PCB).ag_ap];
  ag_ra();
  while ((PCB).exit_flag == AG_RUNNING_CODE) {
    unsigned ag_t1 = ag_sbe[(PCB).sn] + 1;
    unsigned ag_t2 = ag_sbt[(PCB).sn+1] - 1;
    do {
      unsigned ag_tx = (ag_t1 + ag_t2)/2;
      if (ag_tstt[ag_tx] < (unsigned char)(PCB).reduction_token) ag_t1 = ag_tx + 1;
      else ag_t2 = ag_tx;
    } while (ag_t1 < ag_t2);
    (PCB).ag_ap = ag_pstt[ag_t1];
    if ((ag_s_procs_scan[ag_astt[ag_t1]])() == 0) break;
  }
  return 0;
}

static int ag_action_8_proc(void) {
  int ag_k = ag_sbt[(PCB).sn];
  while (ag_tstt[ag_k] != 9 && ag_tstt[ag_k]) ag_k++;
  if (ag_tstt[ag_k] == 0) ag_undo();
  ag_error_resynch();
  return (PCB).exit_flag == AG_RUNNING_CODE;
}

static int ag_action_5_proc(void) {
  int ag_sd = ag_fl[(PCB).ag_ap];
  (PCB).btsx = 0, (PCB).drt = -1;
  if (ag_sd) (PCB).sn = (PCB).ss[(PCB).ssx -= ag_sd];
  else {
    (PCB).ss[(PCB).ssx] = (PCB).sn;
  }
  (PCB).reduction_token = (wraperror_token_type) ag_ptt[(PCB).ag_ap];
  ag_ra();
  while ((PCB).exit_flag == AG_RUNNING_CODE) {
    unsigned ag_t1 = ag_sbe[(PCB).sn] + 1;
    unsigned ag_t2 = ag_sbt[(PCB).sn+1] - 1;
    do {
      unsigned ag_tx = (ag_t1 + ag_t2)/2;
      if (ag_tstt[ag_tx] < (unsigned char)(PCB).reduction_token) ag_t1 = ag_tx + 1;
      else ag_t2 = ag_tx;
    } while (ag_t1 < ag_t2);
    (PCB).ag_ap = ag_pstt[ag_t1];
    if ((ag_r_procs_scan[ag_astt[ag_t1]])() == 0) break;
  }
  return (PCB).exit_flag == AG_RUNNING_CODE;
}

static int ag_action_6_proc(void) {
  int ag_sd = ag_fl[(PCB).ag_ap];
  (PCB).reduction_token = (wraperror_token_type) ag_ptt[(PCB).ag_ap];
  if ((PCB).drt == -1) {
    (PCB).drt=(PCB).token_number;
    (PCB).dssx=(PCB).ssx;
    (PCB).dsn=(PCB).sn;
  }
  if (ag_sd) {
    (PCB).sn = (PCB).ss[(PCB).ssx -= ag_sd];
  }
  else {
    ag_prot();
    (PCB).vs[(PCB).ssx] = ag_null_value;
    (PCB).ss[(PCB).ssx] = (PCB).sn;
  }
  while ((PCB).exit_flag == AG_RUNNING_CODE) {
    unsigned ag_t1 = ag_sbe[(PCB).sn] + 1;
    unsigned ag_t2 = ag_sbt[(PCB).sn+1] - 1;
    do {
      unsigned ag_tx = (ag_t1 + ag_t2)/2;
      if (ag_tstt[ag_tx] < (unsigned char)(PCB).reduction_token) ag_t1 = ag_tx + 1;
      else ag_t2 = ag_tx;
    } while (ag_t1 < ag_t2);
    (PCB).ag_ap = ag_pstt[ag_t1];
    if ((ag_r_procs_scan[ag_astt[ag_t1]])() == 0) break;
  }
  return (PCB).exit_flag == AG_RUNNING_CODE;
}


static int ag_action_2_er_proc(void) {
  (PCB).btsx = 0, (PCB).drt = -1;
  (*(int *) &(PCB).vs[(PCB).ssx]) = (PCB).input_code;
  (PCB).ssx++;
  (PCB).sn = (PCB).ag_ap;
  return 0;
}

static int ag_action_1_er_proc(void) {
  (PCB).btsx = 0, (PCB).drt = -1;
  (PCB).exit_flag = AG_SUCCESS_CODE;
  return 0;
}

static int ag_action_4_er_proc(void) {
  int ag_sd = ag_fl[(PCB).ag_ap] - 1;
  (PCB).btsx = 0, (PCB).drt = -1;
  (PCB).reduction_token = (wraperror_token_type) ag_ptt[(PCB).ag_ap];
  if (ag_sd) (PCB).sn = (PCB).ss[(PCB).ssx -= ag_sd];
  else (PCB).ss[(PCB).ssx] = (PCB).sn;
  while ((PCB).exit_flag == AG_RUNNING_CODE) {
    unsigned ag_t1 = ag_sbe[(PCB).sn] + 1;
    unsigned ag_t2 = ag_sbt[(PCB).sn+1] - 1;
    do {
      unsigned ag_tx = (ag_t1 + ag_t2)/2;
      if (ag_tstt[ag_tx] < (unsigned char)(PCB).reduction_token) ag_t1 = ag_tx + 1;
      else ag_t2 = ag_tx;
    } while (ag_t1 < ag_t2);
    (PCB).ag_ap = ag_pstt[ag_t1];
    if ((ag_s_procs_scan[ag_astt[ag_t1]])() == 0) break;
  }
  return 0;
}

static int ag_action_3_er_proc(void) {
  int ag_sd = ag_fl[(PCB).ag_ap] - 1;
  (PCB).btsx = 0, (PCB).drt = -1;
  if (ag_sd) (PCB).sn = (PCB).ss[(PCB).ssx -= ag_sd];
  else (PCB).ss[(PCB).ssx] = (PCB).sn;
  (PCB).reduction_token = (wraperror_token_type) ag_ptt[(PCB).ag_ap];
  ag_ra();
  while ((PCB).exit_flag == AG_RUNNING_CODE) {
    unsigned ag_t1 = ag_sbe[(PCB).sn] + 1;
    unsigned ag_t2 = ag_sbt[(PCB).sn+1] - 1;
    do {
      unsigned ag_tx = (ag_t1 + ag_t2)/2;
      if (ag_tstt[ag_tx] < (unsigned char)(PCB).reduction_token) ag_t1 = ag_tx + 1;
      else ag_t2 = ag_tx;
    } while (ag_t1 < ag_t2);
    (PCB).ag_ap = ag_pstt[ag_t1];
    if ((ag_s_procs_scan[ag_astt[ag_t1]])() == 0) break;
  }
  return 0;
}


void init_wraperror(void) {
  (PCB).read_flag = 1;
  (PCB).ss[0] = (PCB).sn = (PCB).ssx = 0;
  (PCB).exit_flag = AG_RUNNING_CODE;
  (PCB).line = FIRST_LINE;
  (PCB).column = FIRST_COLUMN;
  (PCB).btsx = 0, (PCB).drt = -1;
}

void wraperror(void) {
  init_wraperror();
  (PCB).exit_flag = AG_RUNNING_CODE;
  while ((PCB).exit_flag == AG_RUNNING_CODE) {
    unsigned ag_t1 = ag_sbt[(PCB).sn];
    if (ag_tstt[ag_t1]) {
      unsigned ag_t2 = ag_sbe[(PCB).sn] - 1;
      if ((PCB).read_flag) {
        (PCB).read_flag = 0;
        GET_INPUT;
      };
      (PCB).token_number = (wraperror_token_type) AG_TCV((PCB).input_code);
      do {
        unsigned ag_tx = (ag_t1 + ag_t2)/2;
        if (ag_tstt[ag_tx] > (unsigned char)(PCB).token_number)
          ag_t1 = ag_tx + 1;
        else ag_t2 = ag_tx;
      } while (ag_t1 < ag_t2);
      if (ag_tstt[ag_t1] != (unsigned char)(PCB).token_number)
        ag_t1 = ag_sbe[(PCB).sn];
    }
    (PCB).ag_ap = ag_pstt[ag_t1];
    (ag_gt_procs_scan[ag_astt[ag_t1]])();
  }
}