ass='id identifier rubyid_read'>read</span><span class='lparen'>(</span><span class='id identifier rubyid_source_file'>source_file</span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_split'>split</span><span class='lparen'>(</span><span class='tstring'><span class='regexp_beg'>/</span><span class='tstring_content'>\n</span><span class='regexp_end'>/</span></span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_map'>map<