method

pre_match

v1_8_7_330 - Show latest stable - 0 notes - Class: MatchData

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pre_match() public

Returns the portion of the original string before the current match. Equivalent to the special variable $`.

m = /(.)(.)(\d+)(\d)/.match("THX1138.")
m.pre_match   #=> "T"

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/*
 *  call-seq:
 *     mtch.pre_match   => str
 *  
 *  Returns the portion of the original string before the current match.
 *  Equivalent to the special variable <code>$`</code>.
 *     
 *     m = /(.)(.)(\d+)(\d)/.match("THX1138.")
 *     m.pre_match   #=> "T"
 */

VALUE
rb_reg_match_pre(match)
    VALUE match;
{
    VALUE str;

    if (NIL_P(match)) return Qnil;
    match_check(match);
    if (RMATCH(match)->BEG(0) == -1) return Qnil;
    str = rb_str_substr(RMATCH(match)->str, 0, RMATCH(match)->BEG(0));
    if (OBJ_TAINTED(match)) OBJ_TAINT(str);
    return str;
}

pre_match

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