Building a parser with Perl
COMPILATION ARTIST
Lexers and parsers aren’t only for the long-bearded gurus. We’ll show you how you can build a parser for your own custom applications.
Lexers and parsers are everyday tools for compiler designers and inventors of new programming languages. Both lexers and parsers check arbitrarily complex expressions for syntactic validity and help to translate these complex expressions from a human-readable format to a machine language format. Admittedly, having to write your own parser is quite uncommon these days, as data is often XML formatted, and there are enough easy-to-use parsers capable of handling XML data. But if you need to analyze and evaluate formulas entered by users, you have no alternative but to build your own parser.
Read full article as PDF:
Perl_Parser.pdf (259.71 kB)Tag Cloud
News
-
New Mint Minted
Version 16 of the popular Linux desktop reveals new tools, edge-snapping, and performance improvements.
-
New Worm Attacks Linux Devices
Symantec says Linux-Darlioz burrows in through PHP.
-
Project Sputnik Gets a Boost
Dell renews its quest for the ultimate developer machine.
-
Sneaky New Linux Attack Discovered in the Wild
Innovative back door looks like normal SSH traffic.
-
CeBIT Call for Papers
One of CeBITs most successful forums opens the new year with a new name. The popular Open Source Forum continues in 2014 under the name Special Conference: Open Source. This year, the forum will be bigger and offer a wider range of possibilities for sponsors.
-
Linus Announces Linux Kernel 3.12
New release offers better graphics drivers and expands filesystem support.
-
Dark Alliance Reinvents Email Security
New mail protocol will shut out the NSA and prevent snooping on metadata.
-
DDos Attack Map Charts Denial of Service
A new web application helps users visualize distributed denial-of-service attacks.
-
Saucy Salamander Gets Legs
Ubuntu 13.10 takes a step toward convergence, with lots of mobility, but Mir only partly here.
-
Intel and Arduino Create Pi-Like System
Galileo board is targeted to embedded developers and educational institutions.