18 lines
743 B
Plaintext
18 lines
743 B
Plaintext
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ed is a POSIX-compliant line editor. It should work with any regular
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expression package that conforms to the POSIX interface standard, such as
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GNU regex(3).
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The following compiler directives are recognized:
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GNU_REGEX - use with GNU regex(3)
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DES - use to add encryption support (requires crypt(3))
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NO_REALLOC_NULL - use if realloc(3) does not accept a NULL pointer
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The file `ed-1003.2' in the ./doc directory describes POSIX ed. Extensions
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to the POSIX standard are described in the file `extensions.'
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The ./test directory contains regression tests for ed. The README
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file in that directory explains how to run these.
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For a description of the ed algorithm, see Kernighan and Pike's book
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"Software Tools in Pascal," Addison-Wesley, 1981.
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