regcmp(1)
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regcmp Command
regular expression compiler
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SYNTAX
regcmp [ - ] files
DESCRIPTION
Regcmp, in most cases, precludes the need for calling regcmp(3X)
from C programs. This saves on both execution time and program
size.
Regcmp compiles the regular expressions in file and places the
output in file.i. If the - option is used, the output will be
placed in file.c. The format of entries in file is a name (C
variable) followed by one or more blanks, followed by a regular
expression enclosed in double quotes.
The output of regcmp is C source code. Compiled regular
expressions are represented as extern char vectors. File.i files
may thus be included into C programs, or file.c files may be
compiled and later loaded. In the C program that uses the regcmp
output, regex(abc,line) will apply the regular expression named
abc to line. Diagnostics are self-explanatory.
EXAMPLES
name "([A-Za-z][A-Za-z0-9_]*)$0"
telno "\\({0,1}([2-9][01][1-9])$0\\){0,1} *"
"([2-9][0-9]{2})$1[ -]{0,1}"
"([0-9]{4})$2"
In the C program that uses the regcmp output,
regex(telno, line, area, exch, rest)
will apply the regular expression named telno to line.
SEE ALSO
regcmp(3X) in the Programmer's Reference for the DG/UX System
DG/UX 4.00 Page 1
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