python - Elegant structured text file parsing -

-

i need parse transcript of live chat conversation. first thought on seeing file throw regular expressions @ problem wondering other approaches people have used.

i put elegant in title i've found type of task has danger of getting hard maintain relying on regular expressions.

the transcripts being generated www.providesupport.com , emailed account, extract plain text transcript attachment email.

the reason parsing file extract conversation text later identify visitors , operators names information can made available via crm.

here example of transcript file:

chat transcript  visitor: random website visitor  operator: milton company: initech started: 16 oct 2008 9:13:58 finished: 16 oct 2008 9:45:44  random website visitor: cover sheet tps report? * there no operators available @ moment. if leave message, please type in input field below , click "send" button * call accepted operator milton. in room: milton, random website visitor. milton: y-- excuse me. you-- believe have stapler? random website visitor: need cover sheet, okay? milton: it's not okay because if take stapler i'll, i'll, i'll set building on fire... random website visitor: oh found it, anyway. * random website visitor off-line , may not reply. in room: milton. milton: well, ok. but… that's last straw. * milton has left conversation. in room:  room empty.  visitor details --------------- name: random website visitor question: cover sheet tps report? ip address: 255.255.255.255 host name: 255.255.255.255 referrer: unknown browser/os: mozilla/4.0 (compatible; msie 7.0; windows nt 5.2; .net clr 1.1.4322; infopath.1; .net clr 2.0.50727)

no , in fact, specific type of task describe, doubt there's "cleaner" way regular expressions. looks files have embedded line breaks typically we'll here make line unit of decomposition, applying per-line regexes. meanwhile, create small state machine , use regex matches trigger transitions in state machine. way know in file, , types of character data can expect. also, consider using named capture groups , loading regexes external file. way if format of transcript changes, it's simple matter of tweaking regex, rather writing new parse-specific code.


Comments

Post a Comment

Popular posts from this blog

c++ - How do I get a multi line tooltip in MFC -

-
right now, have tool tip pops when hover on edit box. problem tool tip contains multiple error messages , in 1 long line. need have each error message on own line. error messages contained in cstring new line seperating them. my existing code below. bool ontooltiptext(uint, nmhdr* pnmhdr, lresult* presult) { assert(pnmhdr->code == ttn_needtexta || pnmhdr->code == ttn_needtextw); // need handle both ansi , unicode versions of message tooltiptexta* pttta = (tooltiptexta*)pnmhdr; tooltiptextw* ptttw = (tooltiptextw*)pnmhdr; // tchar szfulltext[256]; cstring strtiptext=_t(""); uint nid = pnmhdr->idfrom; if (pnmhdr->code == ttn_needtexta && (pttta->uflags & ttf_idishwnd) || pnmhdr->code == ttn_needtextw && (ptttw->uflags & ttf_idishwnd)) { // idfrom hwnd of tool nid = ::getdlgctrlid((hwnd)nid); } //m_errprojaccel[ch] contains 1 or more error messages each...
Read more

asp.net - In javascript how to find the height and width -

-
i having .aspx , masterpage page. in masterpage loading aspx page . in aspx page design using generating table structure using code-behind server in javascript how find height , width . regards, kumar if you're looking table height , width, should it var tbl = document.getelementbyid('tbldemo'); alert(tbl.offsetwidth + '\n' + tbl.offsetheight);
Read more

c# - DataTable to EnumerableRowCollection -

-
i have datatable according client requirement can contain invalid date "00/00/1999",null,empty string.(typed datset) when collect them enumerables wish convert of invalid forms empty string. (i.e) enumerablerowcollection<datarow> query = order in _table.asenumerable() select new { orderdate= string.isnullorempty(convert.tostring(order.field<datetime>("orderdate")) || (how check date invalid date) ? string.empty : order.field<datetime>("orderdate") } how check whether date valid date or not? datetime.tryparse...like given current code: datetime date; enumerablerowcollection<datarow> query = order in _table.asenumerable() select new { orderdate= string.isnullorempty(convert.tostring(order.field<datetime>("orderdate")) || !datetime.tryparse(convert.tostring(order.field<datetime...
Read more