REGCMP(1)                                                            REGCMP(1)


NAME
     regcmp - regular expression compile

SYNOPSIS
     regcmp [ - ] files

DESCRIPTION
     The regcmp command performs a function similar to regcmp(3X) and, in most
     cases, precludes the need for calling regcmp(3X) from C programs.  This
     saves on both execution time and program size.  The command 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 in C programs,
     or file.c files may be compiled and later loaded.  In the C program which
     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


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