diff -r 88a01948450d -r d33698326409 manipulating-strings/slides.org --- a/manipulating-strings/slides.org Wed Nov 17 23:24:57 2010 +0530 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,94 +0,0 @@ -#+LaTeX_CLASS: beamer -#+LaTeX_CLASS_OPTIONS: [presentation] -#+BEAMER_FRAME_LEVEL: 1 - -#+BEAMER_HEADER_EXTRA: \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent} -#+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %8BEAMER_extra(Extra) -#+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 - -#+LaTeX_CLASS: beamer -#+LaTeX_CLASS_OPTIONS: [presentation] - -#+LaTeX_HEADER: \usepackage[english]{babel} \usepackage{ae,aecompl} -#+LaTeX_HEADER: \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet} - -#+LaTeX_HEADER: \usepackage{listings} - -#+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries, -#+LaTeX_HEADER: commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen}, -#+LaTeX_HEADER: showstringspaces=false, keywordstyle=\color{blue}\bfseries} - -#+TITLE: Manipulating strings -#+AUTHOR: FOSSEE -#+EMAIL: -#+DATE: - -#+DESCRIPTION: -#+KEYWORDS: -#+LANGUAGE: en -#+OPTIONS: H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t -#+OPTIONS: TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc - -* Outline - - Slicing strings to get sub-strings - - Reversing strings - - Replacing characters in strings. - - Converting strings to upper or lower case - - Joining a list of strings -* Question 1 - Obtain the sub-string excluding the first and last characters from - the string ~s~. -* Solution 1 - #+begin_src python - In []: s[1:-1] - #+end_src -* Question 2 - Given a list week, week = ~week = ["sun", "mon", "tue", "wed", - "thu", "fri", "sat"]~. Check if ~s~ is a valid name of a day of the - week. Change the solution to this problem, to include forms like, - SAT, SATURDAY, Saturday and Sat. -* Solution 2 - #+begin_src python - In []: s in week - In []: s.lower()[:3] in week - #+end_src -* Question 3 - Given ~email~ -- ~info@fossee[dot]in~ - - Replace the ~[dot]~ with ~.~ in ~email~ -* Solution 3 - #+begin_src python - email.replace('[dot], '.') - print email - #+end_src -* Question 4 - From the ~email_str~ that we generated, change the separator to be a - semicolon instead of a comma. -* Solution 4 - #+begin_src python - email_str = email_str.replace(",", ";") - #+end_src -* Summary - You should now be able to -- - - Slice strings and get sub-strings out of them - - Reverse strings - - Replace characters in strings. - - Convert strings to upper or lower case - - Join a list of strings - -* Thank you! -#+begin_latex - \begin{block}{} - \begin{center} - This spoken tutorial has been produced by the - \textcolor{blue}{FOSSEE} team, which is funded by the - \end{center} - \begin{center} - \textcolor{blue}{National Mission on Education through \\ - Information \& Communication Technology \\ - MHRD, Govt. of India}. - \end{center} - \end{block} -#+end_latex - -