|
1 #+LaTeX_CLASS: beamer |
|
2 #+LaTeX_CLASS_OPTIONS: [presentation] |
|
3 #+BEAMER_FRAME_LEVEL: 1 |
|
4 |
|
5 #+BEAMER_HEADER_EXTRA: \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent} |
|
6 #+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %8BEAMER_extra(Extra) |
|
7 #+PROPERTY: BEAMER_col_ALL 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 :ETC |
|
8 |
|
9 #+LaTeX_CLASS: beamer |
|
10 #+LaTeX_CLASS_OPTIONS: [presentation] |
|
11 |
|
12 #+LaTeX_HEADER: \usepackage[english]{babel} \usepackage{ae,aecompl} |
|
13 #+LaTeX_HEADER: \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet} |
|
14 |
|
15 #+LaTeX_HEADER: \usepackage{listings} |
|
16 |
|
17 #+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries, |
|
18 #+LaTeX_HEADER: commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen}, |
|
19 #+LaTeX_HEADER: showstringspaces=false, keywordstyle=\color{blue}\bfseries} |
|
20 |
|
21 #+TITLE: Parsing Data |
|
22 #+AUTHOR: FOSSEE |
|
23 #+EMAIL: |
|
24 #+DATE: |
|
25 |
|
26 #+DESCRIPTION: |
|
27 #+KEYWORDS: |
|
28 #+LANGUAGE: en |
|
29 #+OPTIONS: H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t |
|
30 #+OPTIONS: TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc |
|
31 |
|
32 * Outline |
|
33 - What is meant by parsing data? |
|
34 - String operations required for parsing |
|
35 - Converting between data-types. |
|
36 * Question 1 |
|
37 Split the variable line using a space as argument. Is it same as |
|
38 splitting without an argument ? |
|
39 * Solution 1 |
|
40 We see that when we split on space, multiple whitespaces are not |
|
41 clubbed as one and there is an empty string everytime there are two |
|
42 consecutive spaces. |
|
43 * Question 2 |
|
44 What happens to the white space inside the sentence when it is |
|
45 stripped? |
|
46 * Solution 2 |
|
47 #+begin_src python |
|
48 In []: a_str = " white space " |
|
49 In []: a_str.strip() |
|
50 #+end_src |
|
51 * Question 3 |
|
52 What happens if you do =int("1.25")= |
|
53 * Solution 3 |
|
54 It raises an error since converting a float string into integer |
|
55 directly is not possible. It involves an intermediate step of |
|
56 converting to float. |
|
57 #+begin_src python |
|
58 In []: dcml_str = "1.25" |
|
59 In []: flt = float(dcml_str) |
|
60 In []: flt |
|
61 In []: number = int(flt) |
|
62 In []: number |
|
63 #+end_src |
|
64 * Summary |
|
65 + How to tokenize a string using various delimiters |
|
66 + How to get rid of extra white space around |
|
67 + How to convert from one type to another |
|
68 + How to parse input data and perform computations on it |
|
69 * Thank you! |
|
70 #+begin_latex |
|
71 \begin{block}{} |
|
72 \begin{center} |
|
73 This spoken tutorial has been produced by the |
|
74 \textcolor{blue}{FOSSEE} team, which is funded by the |
|
75 \end{center} |
|
76 \begin{center} |
|
77 \textcolor{blue}{National Mission on Education through \\ |
|
78 Information \& Communication Technology \\ |
|
79 MHRD, Govt. of India}. |
|
80 \end{center} |
|
81 \end{block} |
|
82 #+end_latex |
|
83 |
|
84 |