Annotation of 43BSDTahoe/man/man5/vgrindefs.5, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1983 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)vgrindefs.5 6.2 (Berkeley) 9/30/87
        !             6: .\"
        !             7: .tr ||
        !             8: .TH VGRINDEFS 5 "September 30, 1987"
        !             9: .UC 5
        !            10: .SH NAME
        !            11: vgrindefs \- vgrind's language definition data base
        !            12: .SH SYNOPSIS
        !            13: .B /usr/lib/vgrindefs
        !            14: .SH DESCRIPTION
        !            15: .I Vgrindefs
        !            16: contains all language definitions for vgrind.  The data base is
        !            17: very similar to 
        !            18: .IR termcap (5).
        !            19: .SH FIELDS
        !            20: The following table names and describes each field.  
        !            21: .PP
        !            22: .nf
        !            23: .ta \w'k0-k9  'u +\w'Type  'u
        !            24: \fBName        Type    Description\fR
        !            25: pb     str     regular expression for start of a procedure
        !            26: bb     str     regular expression for start of a lexical block
        !            27: be     str     regular expression for the end of a lexical block
        !            28: cb     str     regular expression for the start of a comment
        !            29: ce     str     regular expression for the end of a comment
        !            30: sb     str     regular expression for the start of a string
        !            31: se     str     regular expression for the end of a string
        !            32: lb     str     regular expression for the start of a character constant
        !            33: le     str     regular expression for the end of a character constant
        !            34: tl     bool    present means procedures are only defined at the top 
        !            35:                lexical level
        !            36: oc     bool    present means upper and lower case are equivalent
        !            37: kw     str     a list of keywords separated by spaces
        !            38: .fi
        !            39: .PP
        !            40: .B Example
        !            41: .PP
        !            42: The following entry, which describes the C language, is 
        !            43: typical of a language entry.
        !            44: .PP
        !            45: .nf
        !            46: C|c:\
        !            47:        :pb=^\ed?*?\ed?\ep\ed?\(\ea?\):bb={:be=}:cb=/*:ce=*/:sb=":se=\ee":\e
        !            48:        :lb=':le=\ee':tl:\e
        !            49:        :kw=asm auto break case char continue default do double else enum\e
        !            50:        extern float for fortran goto if int long register return short\e
        !            51:        sizeof static struct switch typedef union unsigned while #define\e
        !            52:        #else #endif #if #ifdef #ifndef #include #undef # define else endif\e
        !            53:        if ifdef ifndef include undef:
        !            54: .fi
        !            55: .PP
        !            56: Note that the first field is just the language name (and any variants
        !            57: of it).  Thus the C language could be specified to
        !            58: .IR vgrind (1)
        !            59: as "c" or "C".
        !            60: .PP
        !            61: Entries may continue onto multiple lines by giving a \e as the last
        !            62: character of a line.
        !            63: Capabilities in
        !            64: .I vgrindefs
        !            65: are of two types:
        !            66: Boolean capabilities which indicate that the language has
        !            67: some particular feature
        !            68: and string
        !            69: capabilities which give a regular expression or 
        !            70: keyword list.
        !            71: .PP
        !            72: .B REGULAR EXPRESSIONS
        !            73: .PP
        !            74: .I Vgrindefs
        !            75: uses regular expression which are very similar to those of 
        !            76: .IR ex (1)
        !            77: and
        !            78: .IR lex (1).
        !            79: The characters `^', `$', `:' and `\e'
        !            80: are reserved characters and must be
        !            81: "quoted" with a preceding \e if they
        !            82: are to be included as normal characters.
        !            83: The metasymbols and their meanings are:
        !            84: .IP $
        !            85: the end of a line
        !            86: .IP ^
        !            87: the beginning of a line
        !            88: .IP \ed
        !            89: a delimiter (space, tab, newline, start of line)
        !            90: .IP \ea
        !            91: matches any string of symbols (like .* in lex)
        !            92: .IP \ep
        !            93: matches any alphanumeric name.  In a procedure definition (pb) the string
        !            94: that matches this symbol is used as the procedure name.
        !            95: .IP ()
        !            96: grouping
        !            97: .IP |
        !            98: alternation
        !            99: .IP ?
        !           100: last item is optional
        !           101: .IP \ee
        !           102: preceding any string means that the string will not match an
        !           103: input string if the input string is preceded by an escape character (\e).
        !           104: This is typically used for languages (like C) which can include the
        !           105: string delimiter in a string by escaping it.
        !           106: .PP
        !           107: Unlike other regular expressions in the system,  these match words
        !           108: and not characters.  Hence something like "(tramp|steamer)flies?"
        !           109: would match "tramp", "steamer", "trampflies", or "steamerflies".
        !           110: .PP
        !           111: .B KEYWORD LIST
        !           112: .PP
        !           113: The keyword list is just a list of keywords in the language separated
        !           114: by spaces.  If the "oc" boolean is specified, indicating that upper
        !           115: and lower case are equivalent, then all the keywords should be 
        !           116: specified in lower case.
        !           117: .SH FILES
        !           118: .DT
        !           119: /usr/lib/vgrindefs     file containing terminal descriptions
        !           120: .SH SEE ALSO
        !           121: vgrind(1), troff(1)
        !           122: .SH AUTHOR
        !           123: Dave Presotto
        !           124: .SH BUGS

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