fevoices.h File Reference

#include "reporter/reporter.h"
#include "resources/feResource.h"
#include "kernel/structs.h"

Go to the source code of this file.

Data Structures
class	Voice

Enumerations
enum	feBufferTypes {   BT_none = 0 , BT_break = 1 , BT_proc , BT_example ,   BT_file , BT_execute , BT_if , BT_else }
enum	feBufferInputs { BI_stdin = 1 , BI_buffer , BI_file }
enum	noeof_t {   noeof_brace = 1 , noeof_asstring , noeof_block , noeof_bracket ,   noeof_comment , noeof_procname , noeof_string }

Functions
Voice *	feInitStdin (Voice *pp)
const char *	VoiceName ()
int	VoiceLine ()
void	VoiceBackTrack ()
BOOLEAN	contBuffer (feBufferTypes typ)
BOOLEAN	exitBuffer (feBufferTypes typ)
BOOLEAN	exitVoice ()
void	monitor (void *F, int mode)
BOOLEAN	newFile (char *fname)
void	newBuffer (char *s, feBufferTypes t, procinfo *pname=NULL, int start_lineno=0)
void *	myynewbuffer ()
void	myyoldbuffer (void *oldb)

Variables
EXTERN_VAR int	yylineno
EXTERN_VAR char	my_yylinebuf [80]
const char	sNoName_fe []
EXTERN_VAR Voice *	currentVoice

Enumeration Type Documentation

feBufferInputs

enum feBufferInputs

Enumerator
BI_stdin
BI_buffer
BI_file

Definition at line 28 of file fevoices.h.

{
  BI_stdin = 1,
  BI_buffer,
  BI_file
};

feBufferTypes

enum feBufferTypes

Enumerator
BT_none
BT_break
BT_proc
BT_example
BT_file
BT_execute
BT_if
BT_else

Definition at line 16 of file fevoices.h.

{
  BT_none  = 0,  // entry level
  BT_break = 1,  // while, for
  BT_proc,       // proc
  BT_example,    // example
  BT_file,       // <"file"
  BT_execute,    // execute
  BT_if,         // if
  BT_else        // else
};

noeof_t

enum noeof_t

Enumerator
noeof_brace
noeof_asstring
noeof_block
noeof_bracket
noeof_comment
noeof_procname
noeof_string

Definition at line 34 of file fevoices.h.

{
  noeof_brace = 1,
  noeof_asstring,
  noeof_block,
  noeof_bracket,
  noeof_comment,
  noeof_procname,
  noeof_string
};  /* for scanner.l */

Function Documentation

contBuffer()

BOOLEAN contBuffer

(

feBufferTypes

typ

)

Definition at line 304 of file fevoices.cc.

{
  //printf("contBuffer: %d(%s),(%x)\n",
  //  typ,BT_name[typ], currentVoice);
  if (typ == BT_break)  // valid inside for, while. may skip if, else
  {
    // first check for valid buffer type
    Voice *p=currentVoice;
    loop
    {
      if ((p->typ != BT_if)
        &&(p->typ != BT_else))
      {
        if (p->typ == BT_break /*typ*/)
        {
          while (p != currentVoice)
          {
            exitVoice();
          }
          yylineno = currentVoice->start_lineno;
          currentVoice->fptr=0;
          return FALSE;
        }
        else return TRUE;
      }
      if (p->prev==NULL) break;
      p=p->prev;
    }
  }
  return TRUE;
}

exitBuffer()

BOOLEAN exitBuffer

(

feBufferTypes

typ

)

Definition at line 236 of file fevoices.cc.

{
  //printf("exitBuffer: %d(%s),(%x)\n",
  //  typ,BT_name[typ], currentVoice);
  //Voice *p=currentVoice;
  //PrintS("-----------------\ncurr:");
  //do
  //{
  //Print("voice fn:%s\n",p->filename);
  //p=p->prev;
  //}
  //while (p!=NULL);
  //PrintS("----------------\n");
  if (typ == BT_break)  // valid inside for, while. may skip if, else
  {
    /*4 first check for valid buffer type, skip if/else*/
    Voice *p=currentVoice;
    loop
    {
      if ((p->typ != BT_if)
      &&(p->typ != BT_else))
      {
        if (p->typ == BT_break /*typ*/)
        {
          while (p != currentVoice)
          {
            exitVoice();
          }
          exitVoice();
          return FALSE;
        }
        else return TRUE;
      }
      if (p->prev==NULL) break;
      p=p->prev;
    }
    /*4 break not inside a for/while: return an error*/
    if (/*typ*/ BT_break != currentVoice->typ) return 1;
    return exitVoice();
  }
 
  if ((typ == BT_proc)
  || (typ == BT_example))
  {
    Voice *p=currentVoice;
    loop
    {
      if ((p->typ == BT_proc)
      || (p->typ == BT_example))
      {
        while (p != currentVoice)
        {
          exitVoice();
        }
        exitVoice();
        return FALSE;
      }
      if (p->prev==NULL) break;
      p=p->prev;
    }
  }
  /*4 return not inside a proc: return an error*/
  return TRUE;
}

exitVoice()

BOOLEAN exitVoice

(

)

Definition at line 341 of file fevoices.cc.

{
  //printf("exitVoice: %d(%s),(%x)\n",
  //  currentVoice->typ,BT_name[currentVoice->typ], currentVoice);
  //{
  //Voice *p=currentVoice;
  //PrintS("-----------------\ncurr:");
  //do
  //{
  //Print("voice fn:%s\n",p->filename);
  //p=p->prev;
  //}
  //while (p!=NULL);
  //PrintS("----------------\n");
  //}
  if (currentVoice!=NULL)
  {
    if (currentVoice->oldb!=NULL)
    {
      myyoldbuffer(currentVoice->oldb);
      currentVoice->oldb=NULL;
    }
    if (currentVoice->filename!=NULL)
    {
      omFree((ADDRESS)currentVoice->filename);
      currentVoice->filename=NULL;
    }
    if (currentVoice->buffer!=NULL)
    {
      omFree((ADDRESS)currentVoice->buffer);
      currentVoice->buffer=NULL;
    }
    if ((currentVoice->prev==NULL)
    &&(currentVoice->sw==BI_file)
    &&(currentVoice->files!=stdin))
    {
      currentVoice->prev=feInitStdin(currentVoice);
    }
    if (currentVoice->prev!=NULL)
    {
      //printf("exitVoice typ %d(%s)\n",
      //  currentVoice->typ,BT_name[currentVoice->typ]);
      if (currentVoice->typ==BT_if)
      {
        currentVoice->prev->ifsw=2;
      }
      else
      {
        currentVoice->prev->ifsw=0;
      }
      if ((currentVoice->sw == BI_file)
      && (currentVoice->files!=NULL))
      {
        fclose(currentVoice->files);
      }
      yylineno=currentVoice->prev->curr_lineno;
      currentVoice->prev->next=NULL;
    }
    Voice *p=currentVoice->prev;
    delete currentVoice;
    currentVoice=p;
  }
  return currentVoice==NULL;
}

feInitStdin()

Voice * feInitStdin

(

Voice *

pp

)

Definition at line 677 of file fevoices.cc.

{
  Voice *p = new Voice;
  p->files = stdin;
  p->sw = (isatty(STDIN_FILENO)) ? BI_stdin : BI_file;
  if ((pp!=NULL) && (pp->sw==BI_stdin) && (pp->files==stdin))
  {
    p->files=freopen("/dev/tty","r",stdin);
    //stdin=p->files;
    if (p->files==NULL)
    {
      p->files = stdin;
      p->sw = BI_file;
    }
    else
      p->sw = BI_stdin;
  }
  p->filename   = omStrDup("STDIN");
  p->start_lineno   = 1;
  omMarkAsStaticAddr(p);
  omMarkAsStaticAddr(p->filename);
  return p;
}

monitor()

void monitor	(	void *	F,
		int	mode
	)

Definition at line 68 of file febase.cc.

{
  if (feProt)
  {
    fclose(feProtFile);
    feProt = 0;
  }
  if (F!=NULL)
  {
    feProtFile = (FILE *)F;
    feProt = mode;
  }
}

myynewbuffer()

void * myynewbuffer

(

)

Definition at line 2297 of file scanner.cc.

{
  void * oldb = YY_CURRENT_BUFFER;
  yy_switch_to_buffer(yy_create_buffer(NULL, YY_BUF_SIZE));
  return oldb;
}

myyoldbuffer()

void myyoldbuffer

(

void *

oldb

)

Definition at line 2304 of file scanner.cc.

{
  yy_delete_buffer(YY_CURRENT_BUFFER);
  yy_switch_to_buffer((YY_BUFFER_STATE)oldb);
  //yy_flush_buffer((YY_BUFFER_STATE)oldb);
}

newBuffer()

void newBuffer	(	char *	s,
		feBufferTypes	t,
		procinfo *	pname = NULL,
		int	start_lineno = 0
	)

Definition at line 166 of file fevoices.cc.

{
  currentVoice->Next();
  //Print(":Buffer%d(%s):%s(%x)\n",
  //  t,BT_name[t],pname,currentVoice);
  if (pi!=NULL)
  {
    long l=strlen(pi->procname);
    if (pi->libname!=NULL) l+=strlen(pi->libname);
    currentVoice->filename = (char *)omAlloc(l+3);
    *currentVoice->filename='\0';
    if (pi->libname!=NULL) strcat(currentVoice->filename,pi->libname);
    strcat(currentVoice->filename,"::");
    strcat(currentVoice->filename,pi->procname);
    currentVoice->pi       = pi;
  }
  else
  {
    if(currentVoice->prev!=NULL)
    {
      currentVoice->filename = omStrDup(currentVoice->prev->filename);
      currentVoice->pi       = currentVoice->prev->pi;
    }
    else
    {
      currentVoice->filename = omStrDup("");
      currentVoice->pi       = pi;
    }
  }
  currentVoice->buffer   = s;
  currentVoice->sw       = BI_buffer;
  currentVoice->typ      = t;
  switch (t)
  {
    case BT_execute:
                     yylineno-=2;
                     break;
    case BT_proc:
    case BT_example:
                     currentVoice->oldb=myynewbuffer();
                     yylineno = lineno+1;
                     break;
    case BT_if:
    case BT_else:
    case BT_break:
                     yylineno = yy_blocklineno-1;
                     break;
    //case BT_file:
    default:
                     yylineno = 1;
                     break;
  }
  //Print("start body (%s) at line %d\n",BT_name[t],yylineno);
  currentVoice->start_lineno = yylineno;
  //printf("start buffer typ %d\n",t);
  //Voice *p=currentVoice;
  //PrintS("-----------------\ncurr:");
  //do
  //{
  //Print("voice fn:%s\n",p->filename);
  //p=p->prev;
  //}
  //while (p!=NULL);
  //PrintS("----------------\n");
}

newFile()

BOOLEAN newFile

(

char *

fname

)

Definition at line 129 of file fevoices.cc.

{
  currentVoice->Next();
  //Print(":File%d(%s):%s(%x)\n",
  //  currentVoice->typ,BT_name[currentVoice->typ],fname,currentVoice);
  currentVoice->filename   = omStrDup(fname);
  omMarkAsStaticAddr(currentVoice->filename);
  if (strcmp(fname,"STDIN") == 0)
  {
    currentVoice->files = stdin;
    currentVoice->sw = BI_stdin;
    currentVoice->start_lineno = 1;
  }
  else
  {
    currentVoice->sw = BI_file; /* needed by exitVoice below */
    currentVoice->files = feFopen(fname,"r",NULL,TRUE);
    if (currentVoice->files==NULL)
    {
      exitVoice();
      return TRUE;
    }
    currentVoice->start_lineno = 0;
  }
  yylineno=currentVoice->start_lineno;
  //Voice *p=currentVoice;
  //PrintS("-----------------\ncurr:");
  //do
  //{
  //Print("voice fn:%s\n",p->filename);
  //p=p->prev;
  //}
  //while (p!=NULL);
  //PrintS("----------------\n");
  return FALSE;
}

VoiceBackTrack()

void VoiceBackTrack

(

)

Definition at line 77 of file fevoices.cc.

{
  Voice *p=currentVoice;
  while (p->prev!=NULL)
  {
    p=p->prev;
    char *s=p->filename;
    if (s==NULL)
      PrintS("-- called from ? --\n");
    else
      Print("-- called from %s --\n",s);
  }
}

VoiceLine()

int VoiceLine

(

)

Definition at line 66 of file fevoices.cc.

{
  if ((currentVoice!=NULL)
  && (currentVoice->curr_lineno>=0))
    return currentVoice->curr_lineno;
  return -1;
}

VoiceName()

const char * VoiceName

(

)

Definition at line 58 of file fevoices.cc.

{
  if ((currentVoice!=NULL)
  && (currentVoice->filename!=NULL))
    return currentVoice->filename;
  return sNoName_fe;
}

Variable Documentation

currentVoice

EXTERN_VAR Voice* currentVoice

Definition at line 92 of file fevoices.h.

my_yylinebuf

EXTERN_VAR char my_yylinebuf[80]

Definition at line 46 of file fevoices.h.

sNoName_fe

const char sNoName_fe[]

extern

Definition at line 57 of file fevoices.cc.

yylineno

EXTERN_VAR int yylineno

Definition at line 45 of file fevoices.h.