Databases
StackOverflow2013
Postsdbo
POMerging Words into a Line
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POMerging Words into a Line
    primarykey
    data
    text
    <p>I am currently using Python v2.6 and trying to merge words into a line. My code supposed to read data from a text file, in which I have two rows of data both of which are strings. Then, it takes the second row data every time, which are the words of sentences, those are separated by delimiter strings, such that:</p> <p>Inside the .txt:</p> <pre><code>"delimiter_string" "row_1_data" "row_2_data" "row_1_data" "row_2_data" "row_1_data" "row_2_data" "row_1_data" "row_2_data" "row_1_data" "row_2_data" "delimiter_string" "row_1_data" "row_2_data" "row_1_data" "row_2_data" ... </code></pre> <p>Those "row_2_data" will add-up to a sentence later. Sorry for the long introduction btw.</p> <p>Here is my code:</p> <pre><code>import sys import re newLine = '' for line in sys.stdin: word = line.split(' ')[1] if word == '&lt;S&gt;+BSTag': continue elif word == '&lt;/S&gt;+ESTag': print newLine newLine = '' continue else: w = re.sub('\[.*?]', '', word) if newLine == '': newLine += w else: newLine += ' ' + w </code></pre> <p>"BSTag" is the tag for "Sentence Begins" and "ESTag" is for "Sentence Ends": the so called "delimiters". "re.sub" is used for a special purpose and it works as far as I checked. </p> <p>The problem is that, when I execute this python script from the command line in linux with the following command: $ cat file.txt | script.py | less, I can not see any output, but just a blank file.</p> <p>For those who are not familiar with linux, I guess the problem has nothing to do with terminal execution, thus you can neglect that part. Simply, the code does not work as intended and I can not find a single mistake.</p> <p>Any help will be appreciated, and thanks for reading the long post :)</p> <hr> <p>Ok, the problem is solved, which was actually a corpus error instead of a coding one. A very odd entry was detected in the text file, which was causing problems. Removing it solved it. You can use both of these approaches: mine and the one presented by "snurre" if you want a similar text processing.</p> <p>Cheers. </p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USclancularius
    1. USclancularius
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POMerging Words into a Line
      1. This table or related slice is empty.
      1. VTDownMod
    2. VO
      singulars
      1. POMerging Words into a Line
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POMerging Words into a Line
      1. This table or related slice is empty.
      1. VTUpMod
    1. COI would suggest that you try this out in the interpreter, and see what the call to re.sub() is returning and stepping through your code that way (by hand). Or use pdb.set_trace(): http://docs.python.org/2/library/pdb.html
      singulars
      1. POMerging Words into a Line
      1. USSteven Graham
    2. COI did that already, I wouldn't post a question without checking myself=) re.sub() is working just fine.
      singulars
      1. POMerging Words into a Line
      1. USclancularius
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload