rlFileLoad Class Reference

#include <rlfileload.h>

Collaboration diagram for rlFileLoad:

Public Member Functions
	rlFileLoad ()
virtual	~rlFileLoad ()
int	load (const char *filename)
void	unload ()
const char *	firstLine ()
const char *	nextLine ()
void	setDebug (int state)
int	text2rlstring (rlString &rlstring)

Private Attributes
int	loaded
int	debug
rlFileLines	file_lines
rlFileLines *	current_line

Detailed Description

This class loads a text file to memory.
Then you can iterate to it's lines.

Definition at line 32 of file rlfileload.h.

Constructor & Destructor Documentation

rlFileLoad()

rlFileLoad::rlFileLoad

(

)

Definition at line 20 of file rlfileload.cpp.

{
  loaded = debug = 0;
  file_lines.line = NULL;
  file_lines.next = NULL;
  current_line = NULL;
}

~rlFileLoad()

rlFileLoad::~rlFileLoad ( )

virtual

Definition at line 28 of file rlfileload.cpp.

{
  unload();
}

Member Function Documentation

firstLine()

const char * rlFileLoad::firstLine

(

)

Definition at line 81 of file rlfileload.cpp.

{
  if(loaded == 0) return NULL;
  current_line = &file_lines;
  current_line = current_line->next;
  if(current_line == NULL) return NULL;
  if(debug) printf("rlFileLoad::firstLine=%s",current_line->line);
  return current_line->line;
}

load()

int rlFileLoad::load

(

const char *

filename

)

Definition at line 33 of file rlfileload.cpp.

{
  FILE *fin;
  rlFileLines *fl;
  char line[rl_PRINTF_LENGTH], *cptr;

  unload();
  fin = fopen(filename,"r");
  if(fin == NULL) return -1;

  fl = &file_lines;
  while(fgets(line,sizeof(line)-1,fin) != NULL)
  {
    cptr = strchr(line,'\n');
    if(cptr != NULL) *cptr = '\0';
    cptr = strchr(line,0x0D);
    if(cptr != NULL) *cptr = '\0';
    if(debug) printf("rlFileLoad::load line=%s\n",line);
    fl->next = new rlFileLines;
    fl = fl->next;
    fl->line = new char [strlen(line)+1];
    strcpy(fl->line,line);
    fl->next = NULL;
  }

  fclose(fin);
  loaded = 1;
  return 1;
}

nextLine()

const char * rlFileLoad::nextLine

(

)

Definition at line 91 of file rlfileload.cpp.

{
  if(loaded == 0) return NULL;
  if(current_line != NULL) current_line = current_line->next;
  if(current_line == NULL) return NULL;
  if(debug) printf("rlFileLoad::nextLine=%s",current_line->line);
  return current_line->line; 
}

setDebug()

void rlFileLoad::setDebug

(

int

state

)

Definition at line 100 of file rlfileload.cpp.

{
  if(state == 0) debug = 0;
  else           debug = 1;
}

text2rlstring()

int rlFileLoad::text2rlstring

(

rlString &

rlstring

)

Definition at line 106 of file rlfileload.cpp.

{
  rlstring = "";
  if(loaded == 0) return -1;
  const char *line = firstLine();
  while(line != NULL)
  {
    rlstring += line;
    rlstring += "\n";
    line = nextLine();
  }
  return 0;
}

unload()

void rlFileLoad::unload

(

)

Definition at line 63 of file rlfileload.cpp.

{
  rlFileLines *fl,*flold;

  if(loaded == 0) return;
  fl = &file_lines;
  fl = fl->next;
  while(fl != NULL)
  {
    if(debug) printf("rlFileLoad::unload line=%s",fl->line);
    delete [] fl->line;
    flold = fl;
    fl = fl->next;
    delete flold;
  }
  loaded = 0;
}

Member Data Documentation

current_line

rlFileLines* rlFileLoad::current_line

private

Definition at line 47 of file rlfileload.h.

debug

int rlFileLoad::debug

private

Definition at line 45 of file rlfileload.h.

file_lines

rlFileLines rlFileLoad::file_lines

private

Definition at line 46 of file rlfileload.h.

loaded

int rlFileLoad::loaded

private

Definition at line 44 of file rlfileload.h.

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The documentation for this class was generated from the following files:

• rlfileload.h
• rlfileload.cpp