472,801 Members | 1,253 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 472,801 software developers and data experts.

Python lexical scanner

i need help with Python lexical scanner for this assignment, i have
create a scanner using the Flex scanner generating tool. The
requirements of the scanner are as follows:

1) Accept input via stdin (standard input).
2) Return output via stdout (standard output)
3) Recognize tokens of the Python programming language
3.1) Tokens are grouped into the following categories:
For INDENT tokens, the format should be

<#> - INDENT - <indent level>
i need help with INDENT,Literals and Newline every time i used \n for
newline it did not work i even used [\n] still did not work.
The scanner should output the tokens discovered in the form:

<#> - <token category> - <token spelling>
for example
10 keyword while or if

Thank you
Jul 18 '05 #1
0 1840

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

by: mike420 | last post by:
I think everyone who used Python will agree that its syntax is the best thing going for it. It is very readable and easy for everyone to learn. But, Python does not a have very good macro...
by: mike420 | last post by:
Ladies and Gentlemen, I present to you the final and ultimate proof of Python's brain-damage: As you may remember, flist = for i in range(3)
by: Michael | last post by:
But i'm a good c++ programmer. What i want to do is parse a text file and store the information in relevant fields: //Text File: *Version 200 *SCENE { AMBIENT_COLOUR 0.0 0.0 0.0
by: bariole | last post by:
Hi I am trying to make lexical analysis of some simplified html code with flex tool. However that kind of work is new to me and I don't know where to start. I have searched a web but I didn't...
by: Xah Lee | last post by:
Python, Lambda, and Guido van Rossum Xah Lee, 2006-05-05 In this post, i'd like to deconstruct one of Guido's recent blog about lambda in Python. In Guido's blog written in 2006-02-10 at...
by: Mark Tarver | last post by:
How do you compare Python to Lisp? What specific advantages do you think that one has over the other? Note I'm not a Python person and I have no axes to grind here. This is just a question for...
by: Lennart Benschop | last post by:
Python has had the Decimal data type for some time now. The Decimal data type is ideal for financial calculations. Using this data type would be more intuitive to computer novices than float as its...
by: globalrev | last post by:
i cant figure outif python has lexical or general scope. it seems functions have lexical scope but with some restrictions and some non-function scopes are dynamic?
by: erikbower65 | last post by:
Using CodiumAI's pr-agent is simple and powerful. Follow these steps: 1. Install CodiumAI CLI: Ensure Node.js is installed, then run 'npm install -g codiumai' in the terminal. 2. Connect to...
by: linyimin | last post by:
Spring Startup Analyzer generates an interactive Spring application startup report that lets you understand what contributes to the application startup time and helps to optimize it. Support for...
by: erikbower65 | last post by:
Here's a concise step-by-step guide for manually installing IntelliJ IDEA: 1. Download: Visit the official JetBrains website and download the IntelliJ IDEA Community or Ultimate edition based on...
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Sept 2023 starting at 18:00 UK time (6PM UTC+1) and finishing at about 19:15 (7.15PM) The start time is equivalent to 19:00 (7PM) in Central...
by: Taofi | last post by:
I try to insert a new record but the error message says the number of query names and destination fields are not the same This are my field names ID, Budgeted, Actual, Status and Differences ...
by: DJRhino1175 | last post by:
When I run this code I get an error, its Run-time error# 424 Object required...This is my first attempt at doing something like this. I test the entire code and it worked until I added this - If...
by: Rina0 | last post by:
I am looking for a Python code to find the longest common subsequence of two strings. I found this blog post that describes the length of longest common subsequence problem and provides a solution in...
by: Mushico | last post by:
How to calculate date of retirement from date of birth
by: DJRhino | last post by:
Was curious if anyone else was having this same issue or not.... I was just Up/Down graded to windows 11 and now my access combo boxes are not acting right. With win 10 I could start typing...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.