modifying xml file using LibXML -

-

i'm trying modify file has xml syntax

<!doctype xml> <lrf instance_prefix="u" pdescription="type:%20ddr2%20sdram;&#xa;density:%204gb;&#xa;data:%20x16;&#xa;banks:%208;&#xa;configuration:%2016m%20x%2016%20x%208;&#xa;voltage:%201.8v;&#xa;standard:%20jedec;&#xa;pins:%2084;&#xa;package:%20fbga;&#xa;package%20standard:%20mo-207;%20package%20variation:%20dk-z;&#xa;die:%20single%20die(sd)%20package;&#xa;target%20device%20family:%20virtex-7;" unit="mm" target_family="v7" jedec_type="ddr2_sdram_mo207_dk_z" y_offset="0" interface_type="normalinterface" x_offset="0" model_constraint="same_vccaux" pin_size="0.45">  <group group_number="1" group_name="address_control" group_constraint="memory_address" group_color="#9accff">   <pin pin_number="m8" pin_type="input" pin_standard="sstl18_ii" pin_x_loc="5.6" signal_name="a&lt;0>" pin_y_loc="2.4" symbol_pin_name="ddr2_sdram_a&lt;0>"/>   <pin pin_number="m3" pin_type="input" pin_standard="sstl18_ii" pin_x_loc="1.6" signal_name="a&lt;1>" pin_y_loc="2.4" symbol_pin_name="ddr2_sdram_a&lt;1>"/>   .   .   .  </group>  <group group_number="4" group_name="power" group_color="#ff0000">   <pin pin_number="a1" pin_type="supply" pin_voltage="1.8" pin_x_loc="0" signal_name="vdd" pin_y_loc="11.2" symbol_pin_name="vdd"/>   <pin pin_number="e1" pin_type="supply" pin_voltage="1.8" pin_x_loc="0" signal_name="vdd" pin_y_loc="8" symbol_pin_name="vdd"/>   <pin pin_number="j9" pin_type="supply" pin_voltage="1.8" pin_x_loc="6.4" signal_name="vdd" pin_y_loc="4.8" symbol_pin_name="vdd"/>   .   .   .  </group> . . </lrf>

my task signal_name value "vdd" , if present, remove entire <pin .... /> node. if there no elements available in group node after above task, remove <group....> </group> node.

i've tried task using xml::simple, order keeps changing elements. so, i'm trying complete task using xml::libxml. can 1 throw light on how complete task using libxml. appreciated. thanks


Comments

Post a Comment

Popular posts from this blog

ruby - Trying to change last to "x"s to 23 -

-
i have been playing around irb , have string looks this: irb(main):072:0> puts ["[\"4354 5432 5432 xxxxx\", \"6547 6547 8543 xxxxx\", \"2344 6543 6674 xxxxx\", \"2346 6236 7543 xxxxx\", \"1273 5585 5587 xxxxx\"]"] => nil irb(main):073:0> what want gsub last 2 "x" s of each 17 digit combination, 23 . what i've tried far (i've been using rubular): a.gsub(/\d[x]/,"23") <= grabs "x" s i'm close a.gsub(/\w[x{2}]/,"23") <= grabs "x" s grabs two digits each combination. is there easier way i'm not understanding? a.gsub(/\d{4} \d{4} \d{4} xxx\kxx/, '23') \d{4} = 4 digits what \k drop matched far. can use don't replace entire number, still able validate have in desired format.
Read more

jquery - Clone last and append item to closest class -

-
this bare-bones code on page: <div class="list-container"> <div class="single-list-item"> <button>remove</button> </div> <div class="single-list-item"> <button>remove</button> </div> <div class="single-list-item"> <button>remove</button> </div> </div> <p><button class="add-list-item">add</button></p> <div class="list-container"> <div class="single-list-item"> <button>remove</button> </div> <div class="single-list-item"> <button>remove</button> </div> <div class="single-list-item"> <button>remove</button> </div> </div> <p><button class="add-list-item">add</button></p> <di...
Read more

css - Can I use the :after pseudo-element on an input field? -

-
i trying use :after css pseudo-element on input field, not work. if use span , works ok. <style type="text/css"> .mystyle:after {content:url(smiley.gif);} .mystyle {color:red;} </style> this works (puts smiley after "buu!" , before "some more") <span class="mystyle">buuu!</span>a more this not work - colors somevalue in red, there no smiley. <input class="mystyle" type="text" value="somevalue"> what doing wrong? should use pseudo-selector? note: cannot add span around input , because being generated third-party control. :after , :before not supported in internet explorer 7 , under, on elements. it's not meant used on replaced elements such form elements (inputs) , image elements . in other words it's impossible pure css. however if using jquery can use $(".mystyle").after("add smiley here"); api docs on .after to ...
Read more