Typos

ch03/3.3/3.3.md

@@ -20,7 +20,7 @@ for each of the following languages:
 
 ### 3.3.2
 
-Describe the languages denoted by the following regular ex­ pressions:
+Describe the languages denoted by the following regular expressions:
 
 1. a(a|b)\*a
 2. ((ε|a)b\*)\*
@@ -38,7 +38,7 @@ Describe the languages denoted by the following regular ex­ pressions:
 
 ### 3.3.3
 
-In a string of length n , how many of the following are there?
+In a string of length n, how many of the following are there?
 
 1. Prefixes.
 2. Suffixes.
@@ -198,7 +198,12 @@ Note that these regular expressions give all of the following symbols (operator
 \ " . ^ $ [ ] * + ? { } | /
 ```
 
-Their special meaning must be turned off if they are needed to represent them­ selves in a character string. We can do so by quoting the character within a string of length one or more; e.g., the regular expression "\*\*" matches the string \*\* . We can also get the literal meaning of an operator character by preceding it by a backslash. Thus, the regular expression \\\*\\\* also matches the string \*\*. Write a regular expression that matches the string "\\.
+Their special meaning must be turned off if they are needed to represent
+themselves in a character string. We can do so by quoting the character within a
+string of length one or more; e.g., the regular expression "\*\*" matches the
+string \*\* . We can also get the literal meaning of an operator character by
+preceding it by a backslash. Thus, the regular expression \\\*\\\* also matches
+the string \*\*. Write a regular expression that matches the string "\\.
 
 #### Answer
 
@@ -208,15 +213,21 @@ Their special meaning must be turned off if they are needed to represent them­
 
 ### 3.3.9 !
 
-The regular expression r{m, n} matches from m to n occur­ rences of the pattern r. For example, a [ 1 , 5] matches a string of one to five a's. Show that for every regular expression containing repetition operators of this form, there is an equivalent regular expression without repetition operators.
+The regular expression r{m, n} matches from m to n occurrences of the pattern r.
+For example, a [ 1 , 5] matches a string of one to five a's. Show that for every
+regular expression containing repetition operators of this form, there is an
+equivalent regular expression without repetition operators.
 
 #### Answer
 
 r{m,n} is equals to r.(m).r | r.(m + 1).r | ... | r.(n).r
 
 ### 3.3.10 !
 
-The operator ^ matches the left end of a line, and $ matches the right end of a line. The operator ^ is also used to introduce complemented character classes, but the context always makes it clear which meaning is in­ tended. For example, ^[^aeiou]*$ matches any complete line that does not contain a lowercase vowel.
+The operator ^ matches the left end of a line, and $ matches the right end of a
+line. The operator ^ is also used to introduce complemented character classes,
+but the context always makes it clear which meaning is intended. For example,
+^[^aeiou]*$ matches any complete line that does not contain a lowercase vowel.
 
 1. How do you tell which meaning of ^ is intended?
 2. Can you always replace a regular expression using the ^ and $ operators by an equivalent expression that does not use either of these operators?