How to exec a string which has an embedded '\n'? (Posting On Python-List Prohibited)
jfong at ms4.hinet.net
jfong at ms4.hinet.net
Sun Dec 31 20:26:06 EST 2017
Lawrence D’Oliveiro於 2018年1月1日星期一 UTC+8上午7時56分02秒寫道:
> On Sunday, December 31, 2017 at 11:04:19 PM UTC+13, jf... at ms4.hinet.net wrote:
> >
> > This answer makes me think about '\' more thoughtful:-)
>
> Python generating HTML containing JavaScript which generates HTML:
>
> out.write \
> (
> "\nfunction %(paramname)s_UpdateProjects()\n"
> # /* refreshes the project list to show enabled and/or disabled projects as appropriate. */
> " {\n"
> " var IncludeEnabled = document.forms[\"%(formname)s\"]."
> "elements[\"%(paramname)s_show_enabled\"].checked\n"
> " var IncludeDisabled = document.forms[\"%(formname)s\"]."
> "elements[\"%(paramname)s_show_disabled\"].checked\n"
> " var TheList = \"\"\n"
> " for (var i = 0; i < %(paramname)s_ProjectList.length; ++i)\n"
> " {\n"
> " var ThisProject = %(paramname)s_ProjectList[i]\n"
> " if (ThisProject.enabled ? IncludeEnabled : IncludeDisabled)\n"
> " {\n"
> " TheList += \"<OPTION VALUE=\\\"\" + ThisProject.id +"
> " \"\\\"\" + (ThisProject.selected ? \" SELECTED\" : \"\") + \">\" +"
> " ThisProject.name + \"</OPTION>\\n\"\n"
> " } /*if*/\n"
> " } /*for*/\n"
> " DocumentElt(\"%(formname)s_%(paramname)s_list\").innerHTML =\n"
> " \"<SELECT NAME=\\\"%(paramname)s\\\" SIZE=\\\"5\\\"\"%(on_selection_changed)s"
> " + \">\\n\" + TheList + \"</SELECT>\\n\"\n"
> " } /*%(paramname)s_UpdateProjects*/\n"
> %
> {
> "formname" : FormName,
> "paramname" : ParamName,
> "on_selection_changed" : OnSelectionChanged,
> }
> )
I don't even dare to read through this code:-(
How to run it?
More information about the Python-list
mailing list