Merge pull request #2959 from tbrowder/gram

tidy grammar

Author: tbrowder

doc/Language/regexes.pod6

@@ -31,7 +31,7 @@ delimiter would clash with the use of adverbs; accordingly, such use of the
 colon is forbidden. Similarly, parentheses cannot be used as alternative regex
 delimiters, at least not without a space between C<m> or C<rx> and the
 opening delimiter. This is because identifiers that are immediately followed by
-parentheses are always parsed as a subroutine call. I.e. in C<rx()> the L<call
+parentheses are always parsed as a subroutine call. For example, in C<rx()> the L<call
 operator|/language/operators#postcircumfix_(_)> C<()> invokes the subroutine
 C<rx>. The form C<rx ( abc )>, however, I<does> define a Regex object.
 
@@ -43,12 +43,12 @@ operators:
     $match = m/.+/; say $match; say $match.^name; # OUTPUT: «｢abc｣␤Match␤»
     $match =  /.+/; say $match; say $match.^name; # OUTPUT: «/.+/␤Regex␤»
 
-Whitespace in literal regexes is ignored insofar as the
-L<C<:sigspace> adverb|/language/regexes#Sigspace> is not used to make whitespace
+Whitespace in literal regexes is ignored unless the
+L<C<:sigspace> adverb|/language/regexes#Sigspace> is used to make whitespace
 syntactically significant.
 
 In addition to whitespace, comments may be used inside of regexes to improve
-their readability and comprehensibility just as in Perl6 code in general. This
+their readability and comprehensibility just as in Perl 6 code in general. This
 is true for both L<single line comments|/language/syntax#Single-line_comments>
 and L<multi line/embedded comments|
 /language/syntax#Multi-line_/_embedded_comments>:
@@ -78,7 +78,7 @@ In its simplest form a regex comprises only literals:
     /Καλησπέρα/;       # "Good evening" in Greek
 
 If you want a regex to literally match one or more characters that normally act
-as metacharacters, these characters must either be escaped using a backslash, or
+as metacharacters, those characters must either be escaped using a backslash, or
 be quoted using single or double quotes.
 
 The backslash serves as a switch. It switches a single metacharacter into a
@@ -98,7 +98,7 @@ comma this will work:
 
 while this will fail:
 =for code :skip-test<deliberate error>
-/ ,  /;             # !! error: a yet meaningless/unrecognized metacharacter
+/ ,  /;             # !! error: an as-yet meaningless/unrecognized metacharacter
                     # does not automatically match literally
 
 While an escaping backslash exerts its effect on the next individual character,