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Class: HISTORY

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Enumerable
Inherits: Object
Defined in: ext/readline/readline.c

Class Attribute Summary

Class Method Summary

Class Attribute Details

.empty? ⇒ Boolean (readonly)

[ GitHub ] 

  


# File 'ext/readline/readline.c', line 1840



static VALUE
hist_empty_p(VALUE self)
{
    return history_length == 0 ? Qtrue : Qfalse;
}


  







Class Method Details



  

    .<<(str)  
  

  [ GitHub ]


  

  


# File 'ext/readline/readline.c', line 1754



static VALUE
hist_push(VALUE self, VALUE str)
{
    OutputStringValue(str);
    add_history(RSTRING_PTR(str));
    return self;
}


  








  

    .[](index)  
  

  [ GitHub ]


  

  


# File 'ext/readline/readline.c', line 1711



static VALUE
hist_get(VALUE self, VALUE index)
{
    HIST_ENTRY *entry = NULL;
    int i;

    i = NUM2INT(index);
    if (i < 0) {
        i += history_length;
    }
    if (i >= 0) {
        entry = history_get(history_get_offset_func(i));
    }
    if (entry == NULL) {
        rb_raise(rb_eIndexError, "invalid index");
    }
    return rb_locale_str_new_cstr(entry->line);
}


  








  

    .[]=(index, str)  
  

  [ GitHub ]


  

  


# File 'ext/readline/readline.c', line 1731



static VALUE
hist_set(VALUE self, VALUE index, VALUE str)
{
    HIST_ENTRY *entry = NULL;
    int i;

    i = NUM2INT(index);
    OutputStringValue(str);
    if (i < 0) {
        i += history_length;
    }
    if (i >= 0) {
        entry = replace_history_entry(history_replace_offset_func(i), RSTRING_PTR(str), NULL);
    }
    if (entry == NULL) {
        rb_raise(rb_eIndexError, "invalid index");
    }
    return str;
}


  








  

    .clear  
  

  [ GitHub ]


  

  


# File 'ext/readline/readline.c', line 1861



static VALUE
hist_clear(VALUE self)
{
    clear_history();
    return self;
}


  








  

    .delete_at(index)  
  

  [ GitHub ]


  

  


# File 'ext/readline/readline.c', line 1846



static VALUE
hist_delete_at(VALUE self, VALUE index)
{
    int i;

    i = NUM2INT(index);
    if (i < 0)
        i += history_length;
    if (i < 0 || i > history_length - 1) {
        rb_raise(rb_eIndexError, "invalid index");
    }
    return rb_remove_history(i);
}


  








  

    .each  
  

  [ GitHub ]


  

  


# File 'ext/readline/readline.c', line 1817



static VALUE
hist_each(VALUE self)
{
    HIST_ENTRY *entry;
    int i;

    RETURN_ENUMERATOR(self, 0, 0);

    for (i = 0; i < history_length; i++) {
        entry = history_get(history_get_offset_func(i));
        if (entry == NULL)
            break;
        rb_yield(rb_locale_str_new_cstr(entry->line));
    }
    return self;
}


  








  

    .length  
    Also known as: .size
  

  [ GitHub ]


  

  


# File 'ext/readline/readline.c', line 1834



static VALUE
hist_length(VALUE self)
{
    return INT2NUM(history_length);
}


  








  

    .pop  
  

  [ GitHub ]


  

  


# File 'ext/readline/readline.c', line 1797



static VALUE
hist_pop(VALUE self)
{
    if (history_length > 0) {
        return rb_remove_history(history_length - 1);
    } else {
        return Qnil;
    }
}


  








  

    .push(*args)  
  

  [ GitHub ]


  

  


# File 'ext/readline/readline.c', line 1762



static VALUE
hist_push_method(int argc, VALUE *argv, VALUE self)
{
    VALUE str;

    while (argc--) {
        str = *argv++;
        OutputStringValue(str);
        add_history(RSTRING_PTR(str));
    }
    return self;
}


  








  

    .shift  
  

  [ GitHub ]


  

  


# File 'ext/readline/readline.c', line 1807



static VALUE
hist_shift(VALUE self)
{
    if (history_length > 0) {
        return rb_remove_history(0);
    } else {
        return Qnil;
    }
}


  








  

    .size  
  



  

    

Alias for .length.


  









  

    .to_s  
  

  [ GitHub ]


  

  


# File 'ext/readline/readline.c', line 1693



static VALUE
hist_to_s(VALUE self)
{
    return rb_str_new_cstr("HISTORY");
}