From e2c6df7488f363ecdf6cfa0514fb220ae38220a3 Mon Sep 17 00:00:00 2001 From: gdr-ftp Date: Thu, 16 Apr 1998 05:52:39 +0000 Subject: [PATCH] re.format.7: Replaced "\(dg" with "***"; neither the current GNO nroff program nor groff used by Linux (on which the web versions of the man pages is generated) use "\(dg", which is supposed to be a dagger. --- usr.man/man7/re.format.7 | 32 +++++++++++++++++--------------- 1 file changed, 17 insertions(+), 15 deletions(-) diff --git a/usr.man/man7/re.format.7 b/usr.man/man7/re.format.7 index 02f0f52..048b497 100644 --- a/usr.man/man7/re.format.7 +++ b/usr.man/man7/re.format.7 @@ -35,6 +35,8 @@ .\" .\" @(#)re_format.7 8.3 (Berkeley) 3/20/94 .\" +.\" $Id: re.format.7,v 1.3 1998/04/16 05:52:39 gdr-ftp Exp $ +.\" .TH RE_FORMAT 7 "7 October 1997" GNO "Miscellaneous" .SH NAME re_format \- POSIX 1003.2 regular expressions @@ -50,18 +52,18 @@ and obsolete REs (roughly those of Obsolete REs mostly exist for backward compatibility in some old programs; they will be discussed at the end. 1003.2 leaves some aspects of RE syntax and semantics open; -`\(dg' marks decisions on these aspects that +`***' marks decisions on these aspects that may not be fully portable to other 1003.2 implementations. .PP -A (modern) RE is one\(dg or more non-empty\(dg \fIbranches\fR, +A (modern) RE is one*** or more non-empty*** \fIbranches\fR, separated by `|'. It matches anything that matches one of the branches. .PP -A branch is one\(dg or more \fIpieces\fR, concatenated. +A branch is one*** or more \fIpieces\fR, concatenated. It matches a match for the first, followed by a match for the second, etc. .PP A piece is an \fIatom\fR possibly followed -by a single\(dg `*', `+', `?', or \fIbound\fR. +by a single*** `*', `+', `?', or \fIbound\fR. An atom followed by `*' matches a sequence of 0 or more matches of the atom. An atom followed by `+' matches a sequence of 1 or more matches of the atom. An atom followed by `?' matches a sequence of 0 or 1 matches of the atom. @@ -70,7 +72,7 @@ A \fIbound\fR is `{' followed by an unsigned decimal integer, possibly followed by `,' possibly followed by another unsigned decimal integer, always followed by `}'. -The integers must lie between 0 and RE_DUP_MAX (255\(dg) inclusive, +The integers must lie between 0 and RE_DUP_MAX (255***) inclusive, and if there are two of them, the first may not exceed the second. An atom followed by a bound containing one integer \fIi\fR and no comma matches @@ -84,19 +86,19 @@ a sequence of \fIi\fR through \fIj\fR (inclusive) matches of the atom. .PP An atom is a regular expression enclosed in `()' (matching a match for the regular expression), -an empty set of `()' (matching the null string)\(dg, +an empty set of `()' (matching the null string)***, a \fIbracket expression\fR (see below), `.' (matching any single character), `^' (matching the null string at the beginning of a line), `$' (matching the null string at the end of a line), a `\e' followed by one of the characters `^.[$()|*+?{\e' (matching that character taken as an ordinary character), -a `\e' followed by any other character\(dg +a `\e' followed by any other character*** (matching that character taken as an ordinary character, -as if the `\e' had not been present\(dg), +as if the `\e' had not been present***), or a single character with no other significance (matching that character). A `{' followed by a character other than a digit is an ordinary -character, not the beginning of a bound\(dg. +character, not the beginning of a bound***. It is illegal to end an RE with `\e'. .PP A \fIbracket expression\fR is a list of characters enclosed in `[]'. @@ -108,7 +110,7 @@ If two characters in the list are separated by `\-', this is shorthand for the full \fIrange\fR of characters between those two (inclusive) in the collating sequence, e.g. `[0-9]' in ASCII matches any decimal digit. -It is illegal\(dg for two ranges to share an +It is illegal*** for two ranges to share an endpoint, e.g. `a-c-e'. Ranges are very collating-sequence-dependent, and portable programs should avoid relying on them. @@ -142,7 +144,7 @@ of all collating elements equivalent to that one, including itself. the treatment is as if the enclosing delimiters were `[.' and `.]'.) For example, if o and \o'o^' are the members of an equivalence class, then `[[=o=]]', `[[=\o'o^'=]]', and `[o\o'o^']' are all synonymous. -An equivalence class may not\(dg be an endpoint +An equivalence class may not*** be an endpoint of a range. .PP Within a bracket expression, the name of a \fIcharacter class\fR enclosed @@ -164,7 +166,7 @@ These stand for the character classes defined in A locale may provide others. A character class may not be used as an endpoint of a range. .PP -There are two special cases\(dg of bracket expressions: +There are two special cases*** of bracket expressions: the bracket expressions `[[:<:]]' and `[[:>:]]' match the null string at the beginning and end of a word respectively. A word is defined as a sequence of @@ -214,7 +216,7 @@ When it appears inside a bracket expression, all case counterparts of it are added to the bracket expression, so that (e.g.) `[x]' becomes `[xX]' and `[^x]' becomes `[^xX]'. .PP -No particular limit is imposed on the length of REs\(dg. +No particular limit is imposed on the length of REs***. Programs intended to be portable should not employ REs longer than 256 bytes, as an implementation can refuse to accept such REs and remain @@ -228,9 +230,9 @@ with `{' and `}' by themselves ordinary characters. The parentheses for nested subexpressions are `\e(' and `\e)', with `(' and `)' by themselves ordinary characters. `^' is an ordinary character except at the beginning of the -RE or\(dg the beginning of a parenthesized subexpression, +RE or*** the beginning of a parenthesized subexpression, `$' is an ordinary character except at the end of the -RE or\(dg the end of a parenthesized subexpression, +RE or*** the end of a parenthesized subexpression, and `*' is an ordinary character if it appears at the beginning of the RE or the beginning of a parenthesized subexpression (after a possible leading `^').