1VGRINDEFS(5) File Formats Manual VGRINDEFS(5)
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6 vgrindefs - vgrind's language definition data base
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9 /usr/share/misc/vgrindefs
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12 Vgrindefs contains all language definitions for vgrind. The data base
13 is very similar to termcap(5).
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16 The following table names and describes each field.
17 Name Type Description
19 pb str regular expression for start of a procedure
20 bb str regular expression for start of a lexical block
21 be str regular expression for the end of a lexical block
22 cb str regular expression for the start of a comment
23 ce str regular expression for the end of a comment
24 sb str regular expression for the start of a string
25 se str regular expression for the end of a string
26 lb str regular expression for the start of a character constant
27 le str regular expression for the end of a character constant
28 tl bool present means procedures are only defined at the top
29 lexical level
30 oc bool present means upper and lower case are equivalent
31 kw str a list of keywords separated by spaces
32 Example
34 The following entry, which describes the C language, is typical of a
36 language entry.
37 C|c: :pb=^\d?*?\d?\p\d?a?:bb={:be=}:cb=/*:ce=*/:sb=":se=\e":\
39 :lb=':le=\e':tl:\
40 :kw=asm auto break case char continue default do double else enum\
41 extern float for fortran goto if int long register return short\
42 sizeof static struct switch typedef union unsigned while #define\
43 #else #endif #if #ifdef #ifndef #include #undef # define else endif\
44 if ifdef ifndef include undef:
45 Note that the first field is just the language name (and any variants
47 of it). Thus the C language could be specified to vgrind(1) as "c" or
48 "C".
49 Entries may continue onto multiple lines by giving a \ as the last
51 character of a line. Capabilities in vgrindefs are of two types: Bool‐
52 ean capabilities which indicate that the language has some particular
53 feature and string capabilities which give a regular expression or key‐
54 word list.
55 REGULAR EXPRESSIONS
57 Vgrindefs uses regular expression which are very similar to those of
59 ex(1) and lex(1). The characters `^', `$', `:' and `\' are reserved
60 characters and must be "quoted" with a preceding \ if they are to be
61 included as normal characters. The metasymbols and their meanings are:
62 $ the end of a line
64 ^ the beginning of a line
66 \d a delimiter (space, tab, newline, start of line)
68 \a matches any string of symbols (like .* in lex)
70 \p matches any alphanumeric name. In a procedure definition (pb)
72 the string that matches this symbol is used as the procedure
73 name.
74 () grouping
76 | alternation
78 ? last item is optional
80 \e preceding any string means that the string will not match an
82 input string if the input string is preceded by an escape char‐
83 acter (\). This is typically used for languages (like C) which
84 can include the string delimiter in a string b escaping it.
85 Unlike other regular expressions in the system, these match words and
87 not characters. Hence something like "(tramp|steamer)flies?" would
88 match "tramp", "steamer", "trampflies", or "steamerflies".
89 KEYWORD LIST
91 The keyword list is just a list of keywords in the language separated
93 by spaces. If the "oc" boolean is specified, indicating that upper and
94 lower case are equivalent, then all the keywords should be specified in
95 lower case.
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98 /usr/share/misc/vgrindefs file containing terminal descriptions
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101 vgrind(1), troff(1)
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104 Dave Presotto
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1074.2 Berkeley Distribution October 22, 1996 VGRINDEFS(5)