Module: ERB::Escape

Included in:
Util
Defined in:
lib/erb/util.rb,
ext/erb/escape/escape.c

Overview

ERB::Escape

A subset of ERB::Util. Unlike ERB::Util#html_escape, we expect/hope Rails will not monkey-patch ERB::Escape#html_escape.

Class Method Summary collapse

Class Method Details

.html_escape(s) ⇒ Object

ERB::Util.html_escape is similar to CGI.escapeHTML but different in the following two parts:

  • ERB::Util.html_escape converts an argument with #to_s first (only if it’s not T_STRING)

  • ERB::Util.html_escape does not allocate a new string when nothing needs to be escaped



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# File 'ext/erb/escape/escape.c', line 74

static VALUE
erb_escape_html(VALUE self, VALUE str)
{
    if (!RB_TYPE_P(str, T_STRING)) {
        str = rb_convert_type(str, T_STRING, "String", "to_s");
    }

    if (rb_enc_str_asciicompat_p(str)) {
        return optimized_escape_html(str);
    }
    else {
        return rb_funcall(rb_cCGI, id_escapeHTML, 1, str);
    }
}