10.0
10.0-rc1
10.1
10.1-rc1
11.0
11.0-rc1
11.0-rc2
11.0-rc3
11.1
11.1-rc1
11.2
11.2-rc1
11.3
11.3-rc1
12.0
12.0-rc1
12.1
12.1-rc1
12.2-rc1
6.0
6.1
6.1.1
6.3
6.4
6.5
6.6
6.7
6.8
7.0
7.1
7.2
7.3
7.4
7.5
7.5-systemd
7.6
7.6-systemd
7.7
7.7-systemd
7.8
7.8-systemd
7.9
7.9-systemd
8.0
8.1
8.2
8.3
8.4
9.0
9.1
arm
bdubbs/gcc13
ml-11.0
multilib
renodr/libudev-from-systemd
s6-init
trunk
v5_0
v5_1
v5_1_1
xry111/arm64
xry111/arm64-12.0
xry111/clfs-ng
xry111/lfs-next
xry111/loongarch
xry111/loongarch-12.0
xry111/loongarch-12.1
xry111/mips64el
xry111/pip3
xry111/rust-wip-20221008
xry111/update-glibc
Last change
on this file since 26ebd83c was b7d9d404, checked in by Timothy Bauscher <timothy@…>, 22 years ago |
Converted m4, bison, less, groff, textutils, sed, flex, binutils, fileutils, shellutils, gettext and net-tools to new layout.
git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2353 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
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1.1 KB
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[b7d9d404] | 1 | <sect2><title> </title><para> </para></sect2>
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[8fcc2c0] | 2 |
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[b7d9d404] | 3 | <sect2><title>Descriptions</title>
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[6370fa6] | 4 |
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[b7d9d404] | 5 | <para>Last checked against version &flex-contversion;.</para>
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[6370fa6] | 6 |
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[b7d9d404] | 7 | <sect3><title>Program file descriptions</title>
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[6370fa6] | 8 |
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[bdc08c1] | 9 | <sect4><title>flex</title>
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| 10 | <para>flex is a tool for generating programs which recognize
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[2c094d6] | 11 | patterns in text. Pattern recognition is very useful in many applications.
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| 12 | A user sets up rules about what to look for and flex will make a program
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| 13 | that looks for those patterns. The reason people use flex is that it is
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| 14 | much easier to set up rules for what to look for than to write the actual
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| 15 | program which finds the text.</para></sect4>
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[bdc08c1] | 16 |
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| 17 | <sect4><title>flex++</title>
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| 18 | <para>flex++ invokes a version of flex which is used exclusively for
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| 19 | C++ scanners.</para></sect4>
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| 20 |
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| 21 | <sect4><title>lex</title>
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[65824097] | 22 | <para>We create a bash script called lex which calls flex using the -l option.
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[bdc08c1] | 23 | This is for compatibility purposes for programs which use lex instead
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| 24 | of flex.</para></sect4>
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| 25 |
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| 26 | </sect3>
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| 27 |
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[b7d9d404] | 28 | <sect3><title>Library file descriptions</title>
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[bdc08c1] | 29 |
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| 30 | <sect4><title>libfl</title>
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[46105cf] | 31 | <para>libfl is the flex library.</para></sect4>
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[bdc08c1] | 32 |
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| 33 | </sect3>
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[6370fa6] | 34 |
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| 35 | </sect2>
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| 36 |
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