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The Flex lexical analyser is a free software alternative to Lex.

The description for flex as given by the flex manual.

flex is a tool for generating scanners: programs which recognized lexical patterns in text. flex reads the given input files, or its standard input if no file names are given, for a description of a scanner to generate. The description is in the form of pairs of regular expressions and C code, called rules. flex generates as output a C source file, `lex.yy.c', which defines a routine `yylex()'. This file is compiled and linked with the `-lfl' library to produce an executable. When the executable is run, it analyzes its input for occurrences of the regular expressions. Whenever it finds one, it executes the corresponding C code...

A simillar lexical scanner for C++ is flex++.

External links

Flex Manual

Free software Computer programming tools

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Topics: Flex Lexical Analyser, Flexagon, Flexography, Flexible Baton...

FlexagonFlexagons are flat models made from folded strips of paper that can be folded, or flexed to reveal a number of hidden faces. They are amusing toys but have also caught the interest of mathematicians. Flexagons are usually square or rectangular tetraflexag	FlexographyFlexography normally abbreviated to flexo is a method of printing most commonly used for packaging. A flexo print is achieved by creating a mirrored master of the required image as a 3D relief in a rubber or polymer material compare with children's potato	Flexible baton roundThe flexible baton round is the trademarked name for a type of non-lethal kinetic projectile; it is more widely known as a beanbag round. It is typically fired from a shotgun, and is used by civil and military forces, mainly in the United States. The shot
Flexor digitorum profundus muscleThe flexor digitorum profundis is a muscle in the forearm that flexes the fingers. It is called an extrinsic muscle, because it action is at a different location to the main body of the muscle. Flexor digitorum profundis, along with flexor digitorum super	Flexor digitorum superficialis muscleFlexor digitorum superficialis is an extrinsic flexor muscle of the fingers. The bulk of the muscle is in the anterior of the forearm. Like most flexors of the arm, it is supplied by the median nerve. Its blood comes from the ulnar artery. The proximal at	Flexor carpi radialis muscleIn anatomy, flexor carpi radialis is a muscle of the human forearm that acts to flex and abduct the hand. This muscle starts at the medial epicondyle of the humerus (as does flexor carpi ulnaris) and attaches to the anterior side of the base of the 2nd me
Flexible electronics	Flexible AC transmission system	Flex machine
Flex	Flex lexical analyser	Flexatone
Flex dollars	Flextime plan	Flexitarianism

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