regcmp(1)
NAME
regcmp - regular expression compile
SYNOPSIS
regcmp [-] filename...
DESCRIPTION
The regcmp command performs a function similar to regcmp
and, in most cases, precludes the need for calling regcmp
from C programs. Bypassing regcmp saves on both execution
time and program size. The command regcmp compiles the regu-
lar expressions in filename and places the output in
filename.i.
OPTIONS
- If the - option is used, the output is placed in
filename.c. The format of entries in filename is a
name (C variable) followed by one or more blanks fol-
lowed by one or more regular expressions enclosed in
double quotes. The output of regcmp is C source code.
Compiled regular expressions are represented as extern
char vectors. filename.i files may thus be #included
in C programs, or filename.c files may be compiled and
later loaded. In the C program that uses the regcmp
output, regex(abc,line) applies the regular expression
named abc to line. Diagnostics are self-explanatory.
EXAMPLES
Example 1: Examples of the regcmp command.
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"
The three arguments to telno shown above must all be entered
on one line.
In the C program that uses the regcmp output,
regex(telno, line, area, exch, rest)
applies the regular expression named telno to line.
ENVIRONMENT VARIABLES
A general description of the usage of the LC_* environmental
variables can be found in environ(5).
LC_CTYPE
Determines how regcmp handles characters. When
LC_CTYPE is set to a valid value, regcmp can display
and handle text and filenames containing valid charac-
ters for that locale.
LC_MESSAGES
Determines how diagnostic and informative messages are
presented. This includes the language and style of the
messages, and the correct form of affirmative and
negative responses. In the "C" locale, the messages
are presented in the default form found in the program
itself (in most cases, U.S. English).
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | SUNWtoo |
|_____________________________|_____________________________|
| CSI | Enabled |
|_____________________________|_____________________________|
SEE ALSO
regcmp(3C), attributes(5), environ(5)
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