diff --git a/core/sequences/sequences-docs.factor b/core/sequences/sequences-docs.factor
index ed0f4b16b0..8832cde3e4 100644
--- a/core/sequences/sequences-docs.factor
+++ b/core/sequences/sequences-docs.factor
@@ -15,7 +15,7 @@ HELP: length
 HELP: set-length
 { $values { "n" "a non-negative integer" } { "seq" "a resizable sequence" } }
 { $contract "Resizes a sequence. The initial contents of the new area is undefined." }
-{ $errors "Throws a " { $link no-method  } " error if the sequence is not resizable, and a " { $link bounds-error } " if the new length is negative." }
+{ $errors "Throws a " { $link no-method } " error if the sequence is not resizable, and a " { $link bounds-error } " if the new length is negative." }
 { $side-effects "seq" } ;
 
 HELP: lengthen
@@ -45,7 +45,7 @@ HELP: nths
      { "indices" sequence } { "seq" sequence }
      { "seq'" sequence } }
 { $description "Outputs a sequence of elements from the input sequence indexed by the indices." }
-{ $examples 
+{ $examples
     { $example "USING: prettyprint sequences ;"
                "{ 0 2 } { \"a\" \"b\" \"c\" } nths ."
                "{ \"a\" \"c\" }"
@@ -248,7 +248,7 @@ HELP: array-nth
 { $warning "This word is in the " { $vocab-link "sequences.private" } " vocabulary because it is unsafe. It does not check types or array bounds, and improper use can corrupt memory. User code must use " { $link nth } " instead." } ;
 
 HELP: set-array-nth
-{ $values { "elt" object } { "n" "a non-negative fixnum" } { "array" "an array" }  }
+{ $values { "elt" object } { "n" "a non-negative fixnum" } { "array" "an array" } }
 { $description "Low-level array element mutator." }
 { $warning "This word is in the " { $vocab-link "sequences.private" } " vocabulary because it is unsafe. It does not check types or array bounds, and improper use can corrupt memory. User code must use " { $link set-nth } " instead." } ;
 
@@ -430,7 +430,7 @@ HELP: all?
 
 HELP: push-if
 { $values { "elt" object } { "quot" { $quotation "( ..a elt -- ..b ? )" } } { "accum" "a resizable mutable sequence" } }
-{ $description "Adds the element at the end of the sequence if the quotation yields a true value." } 
+{ $description "Adds the element at the end of the sequence if the quotation yields a true value." }
 { $notes "This word is a factor of " { $link filter } "." } ;
 
 HELP: filter
@@ -557,7 +557,7 @@ HELP: append!
 HELP: prefix
 { $values { "seq" sequence } { "elt" object } { "newseq" sequence } }
 { $description "Outputs a new sequence obtained by adding " { $snippet "elt" } " at the beginning of " { $snippet "seq" } "." }
-{ $errors "Throws an error if the type of " { $snippet "elt" } " is not permitted in sequences of the same class as " { $snippet "seq1" } "." } 
+{ $errors "Throws an error if the type of " { $snippet "elt" } " is not permitted in sequences of the same class as " { $snippet "seq1" } "." }
 { $examples
 { $example "USING: prettyprint sequences ;" "{ 1 2 3 } 0 prefix ." "{ 0 1 2 3 }" }
 } ;
@@ -713,7 +713,7 @@ HELP: append
 { $values { "seq1" sequence } { "seq2" sequence } { "newseq" sequence } }
 { $description "Outputs a new sequence of the same type as " { $snippet "seq1" } " consisting of the elements of " { $snippet "seq1" } " followed by " { $snippet "seq2" } "." }
 { $errors "Throws an error if " { $snippet "seq2" } " contains elements not permitted in sequences of the same class as " { $snippet "seq1" } "." }
-{ $examples 
+{ $examples
     { $example "USING: prettyprint sequences ;"
         "{ 1 2 } B{ 3 4 } append ."
         "{ 1 2 3 4 }"
@@ -728,7 +728,7 @@ HELP: append-as
 { $values { "seq1" sequence } { "seq2" sequence } { "exemplar" sequence } { "newseq" sequence } }
 { $description "Outputs a new sequence of the same type as " { $snippet "exemplar" } " consisting of the elements of " { $snippet "seq1" } " followed by " { $snippet "seq2" } "." }
 { $errors "Throws an error if " { $snippet "seq1" } " or " { $snippet "seq2" } " contain elements not permitted in sequences of the same class as " { $snippet "exemplar" } "." }
-{ $examples 
+{ $examples
     { $example "USING: prettyprint sequences ;"
         "{ 1 2 } B{ 3 4 } B{ } append-as ."
         "B{ 1 2 3 4 }"
@@ -992,7 +992,7 @@ HELP: selector
 { $values
      { "quot" { $quotation "( ... elt -- ... ? )" } }
      { "selector" { $quotation "( ... elt -- ... )" } } { "accum" vector } }
-{ $description "Creates a new vector to accumulate the values which return true for a predicate.  Returns a new quotation which accepts an object to be tested and stored in the collector if the test yields true. The collector is left on the stack for convenience." }
+{ $description "Creates a new vector to accumulate the values which return true for a predicate. Returns a new quotation which accepts an object to be tested and stored in the collector if the test yields true. The collector is left on the stack for convenience." }
 { $example "! Find all the even numbers:" "USING: prettyprint sequences math kernel ;"
            "10 iota [ even? ] selector [ each ] dip ."
            "V{ 0 2 4 6 8 }"
@@ -1004,7 +1004,7 @@ HELP: trim-head
      { "seq" sequence } { "quot" quotation }
      { "newseq" sequence } }
 { $description "Removes elements starting from the left side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a new sequence." }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
            "{ 0 0 1 2 3 0 0 } [ zero? ] trim-head ."
            "{ 1 2 3 0 0 }"
 } ;
@@ -1014,7 +1014,7 @@ HELP: trim-head-slice
      { "seq" sequence } { "quot" quotation }
      { "slice" slice } }
 { $description "Removes elements starting from the left side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a slice" }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
            "{ 0 0 1 2 3 0 0 } [ zero? ] trim-head-slice ."
            "T{ slice { from 2 } { to 7 } { seq { 0 0 1 2 3 0 0 } } }"
 } ;
@@ -1024,7 +1024,7 @@ HELP: trim-tail
      { "seq" sequence } { "quot" quotation }
      { "newseq" sequence } }
 { $description "Removes elements starting from the right side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a new sequence." }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
            "{ 0 0 1 2 3 0 0 } [ zero? ] trim-tail ."
            "{ 0 0 1 2 3 }"
 } ;
@@ -1034,7 +1034,7 @@ HELP: trim-tail-slice
      { "seq" sequence } { "quot" quotation }
      { "slice" slice } }
 { $description "Removes elements starting from the right side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a slice." }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
            "{ 0 0 1 2 3 0 0 } [ zero? ] trim-tail-slice ."
            "T{ slice { from 0 } { to 5 } { seq { 0 0 1 2 3 0 0 } } }"
 } ;
@@ -1044,7 +1044,7 @@ HELP: trim
      { "seq" sequence } { "quot" quotation }
      { "newseq" sequence } }
 { $description "Removes elements starting from the left and right sides of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a new sequence." }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
            "{ 0 0 1 2 3 0 0 } [ zero? ] trim ."
            "{ 1 2 3 }"
 } ;
@@ -1054,7 +1054,7 @@ HELP: trim-slice
      { "seq" sequence } { "quot" quotation }
      { "slice" slice } }
 { $description "Removes elements starting from the left and right sides of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a slice." }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
            "{ 0 0 1 2 3 0 0 } [ zero? ] trim-slice ."
            "T{ slice { from 2 } { to 5 } { seq { 0 0 1 2 3 0 0 } } }"
 } ;
@@ -1065,8 +1065,8 @@ HELP: sift
 { $values
      { "seq" sequence }
      { "newseq" sequence } }
- { $description "Outputs a new sequence with all instance of " { $link f  } " removed." }
- { $examples 
+ { $description "Outputs a new sequence with all instance of " { $link f } " removed." }
+ { $examples
     { $example "USING: prettyprint sequences ;"
         "{ \"a\" 3 { } f } sift ."
         "{ \"a\" 3 { } }"
@@ -1078,7 +1078,7 @@ HELP: harvest
      { "seq" sequence }
      { "newseq" sequence } }
 { $description "Outputs a new sequence with all empty sequences removed." }
-{ $examples 
+{ $examples
     { $example "USING: prettyprint sequences ;"
                "{ { } { 2 3 } { 5 } { } } harvest ."
                "{ { 2 3 } { 5 } }"
@@ -1091,9 +1091,9 @@ HELP: set-first
 { $values
      { "first" object } { "seq" sequence } }
 { $description "Sets the first element of a sequence." }
-{ $examples 
+{ $examples
     { $example "USING: prettyprint kernel sequences ;"
-        "{ 1 2 3 4  } 5 over set-first ."
+        "{ 1 2 3 4 } 5 over set-first ."
         "{ 5 2 3 4 }"
     }
 } ;
@@ -1102,9 +1102,9 @@ HELP: set-second
 { $values
      { "second" object } { "seq" sequence } }
 { $description "Sets the second element of a sequence." }
-{ $examples 
+{ $examples
     { $example "USING: prettyprint kernel sequences ;"
-        "{ 1 2 3 4  } 5 over set-second ."
+        "{ 1 2 3 4 } 5 over set-second ."
         "{ 1 5 3 4 }"
     }
 } ;
@@ -1113,9 +1113,9 @@ HELP: set-third
 { $values
      { "third" object } { "seq" sequence } }
 { $description "Sets the third element of a sequence." }
-{ $examples 
+{ $examples
     { $example "USING: prettyprint kernel sequences ;"
-        "{ 1 2 3 4  } 5 over set-third ."
+        "{ 1 2 3 4 } 5 over set-third ."
         "{ 1 2 5 4 }"
     }
 } ;
@@ -1124,9 +1124,9 @@ HELP: set-fourth
 { $values
      { "fourth" object } { "seq" sequence } }
 { $description "Sets the fourth element of a sequence." }
-{ $examples 
+{ $examples
     { $example "USING: prettyprint kernel sequences ;"
-        "{ 1 2 3 4  } 5 over set-fourth ."
+        "{ 1 2 3 4 } 5 over set-fourth ."
         "{ 1 2 3 5 }"
     }
 } ;
@@ -1138,7 +1138,7 @@ HELP: replicate
      { "len" integer } { "quot" { $quotation "( ... -- ... newelt )" } }
      { "newseq" sequence } }
      { $description "Calls the quotation " { $snippet "len" } " times, collecting results into a new array." }
-{ $examples 
+{ $examples
     { $unchecked-example "USING: kernel prettyprint random sequences ;"
         "5 [ 100 random ] replicate ."
         "{ 52 10 45 81 30 }"
@@ -1150,7 +1150,7 @@ HELP: replicate-as
      { "len" integer } { "quot" { $quotation "( ... -- ... newelt )" } } { "exemplar" sequence }
      { "newseq" sequence } }
  { $description "Calls the quotation " { $snippet "len" } " times, collecting results into a new sequence of the same type as the exemplar sequence." }
-{ $examples 
+{ $examples
     { $unchecked-example "USING: prettyprint kernel sequences ;"
         "5 [ 100 random ] B{ } replicate-as ."
         "B{ 44 8 2 33 18 }"
@@ -1163,8 +1163,8 @@ HELP: partition
 { $values
      { "seq" sequence } { "quot" quotation }
      { "trueseq" sequence } { "falseseq" sequence } }
-     { $description "Calls a predicate quotation on each element of the input sequence.  If the test yields true, the element is added to " { $snippet "trueseq" } "; if false, it's added to " { $snippet "falseseq" } "." }
-{ $examples 
+     { $description "Calls a predicate quotation on each element of the input sequence. If the test yields true, the element is added to " { $snippet "trueseq" } "; if false, it's added to " { $snippet "falseseq" } "." }
+{ $examples
     { $example "USING: prettyprint kernel math sequences ;"
         "{ 1 2 3 4 5 } [ even? ] partition [ . ] bi@"
         "{ 2 4 }\n{ 1 3 5 }"
diff --git a/core/syntax/syntax-docs.factor b/core/syntax/syntax-docs.factor
index 059fa487bc..18434166b9 100644
--- a/core/syntax/syntax-docs.factor
+++ b/core/syntax/syntax-docs.factor
@@ -195,7 +195,7 @@ ARTICLE: "syntax-hash-sets" "Hash set syntax"
 
 ARTICLE: "syntax-tuples" "Tuple syntax"
 { $subsections POSTPONE: T{ }
-"Tuples are documented in " { $link "tuples" } "."  ;
+"Tuples are documented in " { $link "tuples" } "." ;
 
 ARTICLE: "syntax-quots" "Quotation syntax"
 { $subsections
@@ -340,37 +340,37 @@ $nl
 HELP: {
 { $syntax "{ elements... }" }
 { $values { "elements" "a list of objects" } }
-{ $description "Marks the beginning of a literal array. Literal arrays are terminated by " { $link POSTPONE: } } "." } 
+{ $description "Marks the beginning of a literal array. Literal arrays are terminated by " { $link POSTPONE: } } "." }
 { $examples { $code "{ 1 2 3 }" } } ;
 
 HELP: V{
 { $syntax "V{ elements... }" }
 { $values { "elements" "a list of objects" } }
-{ $description "Marks the beginning of a literal vector. Literal vectors are terminated by " { $link POSTPONE: } } "." } 
+{ $description "Marks the beginning of a literal vector. Literal vectors are terminated by " { $link POSTPONE: } } "." }
 { $examples { $code "V{ 1 2 3 }" } } ;
 
 HELP: B{
 { $syntax "B{ elements... }" }
 { $values { "elements" "a list of integers" } }
-{ $description "Marks the beginning of a literal byte array. Literal byte arrays are terminated by " { $link POSTPONE: } } "." } 
+{ $description "Marks the beginning of a literal byte array. Literal byte arrays are terminated by " { $link POSTPONE: } } "." }
 { $examples { $code "B{ 1 2 3 }" } } ;
 
 HELP: H{
 { $syntax "H{ { key value }... }" }
 { $values { "key" "an object" } { "value" "an object" } }
-{ $description "Marks the beginning of a literal hashtable, given as a list of two-element arrays holding key/value pairs. Literal hashtables are terminated by " { $link POSTPONE: } } "." } 
+{ $description "Marks the beginning of a literal hashtable, given as a list of two-element arrays holding key/value pairs. Literal hashtables are terminated by " { $link POSTPONE: } } "." }
 { $examples { $code "H{ { \"tuna\" \"fish\" } { \"jalapeno\" \"vegetable\" } }" } } ;
 
 HELP: HS{
 { $syntax "HS{ members ... }" }
 { $values { "members" "a list of objects" } }
-{ $description "Marks the beginning of a literal hash set, given as a list of its members. Literal hashtables are terminated by " { $link POSTPONE: } } "." } 
+{ $description "Marks the beginning of a literal hash set, given as a list of its members. Literal hashtables are terminated by " { $link POSTPONE: } } "." }
 { $examples { $code "HS{ 3 \"foo\" }" } } ;
 
 HELP: C{
 { $syntax "C{ real-part imaginary-part }" }
 { $values { "real-part" "a real number" } { "imaginary-part" "a real number" } }
-{ $description "Parses a complex number given in rectangular form as a pair of real numbers. Literal complex numbers are terminated by " { $link POSTPONE: } } "." }  ;
+{ $description "Parses a complex number given in rectangular form as a pair of real numbers. Literal complex numbers are terminated by " { $link POSTPONE: } } "." } ;
 
 HELP: T{
 { $syntax "T{ class }" "T{ class f slot-values... }" "T{ class { slot-name slot-value } ... }" }
@@ -453,7 +453,7 @@ HELP: SINGLETON:
 { $examples
     { $example "USING: classes.singleton kernel io ;" "IN: singleton-demo" "USE: prettyprint SINGLETON: foo\nGENERIC: bar ( obj -- )\nM: foo bar drop \"a foo!\" print ;\nfoo bar" "a foo!" }
 } ;
-    
+
 HELP: SINGLETONS:
 { $syntax "SINGLETONS: words... ;" }
 { $values { "words" "a sequence of new words to define" } }
@@ -560,7 +560,7 @@ HELP: FROM:
 
 HELP: EXCLUDE:
 { $syntax "EXCLUDE: vocab => words ... ;" }
-{ $description "Adds all words except for " { $snippet "words" } " from " { $snippet "vocab" } "  to the search path." }
+{ $description "Adds all words except for " { $snippet "words" } " from " { $snippet "vocab" } " to the search path." }
 { $examples { $code
     "EXCLUDE: math.parser => bin> hex> ;" "! imports everything but bin> and hex>" } } ;
 
@@ -728,7 +728,7 @@ HELP: HOOK:
         "TUPLE: air-transport ;"
         "HOOK: deliver transport ( destination -- )"
         "M: land-transport deliver \"Land delivery to \" write print ;"
-        "M: air-transport deliver \"Air delivery to \"  write print ;"
+        "M: air-transport deliver \"Air delivery to \" write print ;"
         "T{ air-transport } transport set"
         "\"New York City\" deliver"
         "Air delivery to New York City"
diff --git a/core/vocabs/parser/parser-docs.factor b/core/vocabs/parser/parser-docs.factor
index 66900978a8..9f60f79047 100644
--- a/core/vocabs/parser/parser-docs.factor
+++ b/core/vocabs/parser/parser-docs.factor
@@ -1,7 +1,7 @@
 USING: help.markup help.syntax parser strings words assocs vocabs ;
 IN: vocabs.parser
 
-ARTICLE: "word-search-errors"  "Word lookup errors"
+ARTICLE: "word-search-errors" "Word lookup errors"
 "If the parser cannot not find a word in the current vocabulary search path, it attempts to look for the word in all loaded vocabularies."
 $nl
 "If " { $link auto-use? } " mode is off, a restartable error is thrown with a restart for each vocabulary in question, together with a restart which defers the word in the current vocabulary, as if " { $link POSTPONE: DEFER: } " was used."
@@ -142,7 +142,7 @@ HELP: add-words-from
 
 HELP: add-words-excluding
 { $values { "vocab" "a vocabulary specifier" } { "words" "a sequence of word names" } }
-{ $description "Adds all words except for " { $snippet "words" } " from " { $snippet "vocab" } "  to the manifest." }
+{ $description "Adds all words except for " { $snippet "words" } " from " { $snippet "vocab" } " to the manifest." }
 { $notes "This word is used to implement " { $link POSTPONE: EXCLUDE: } "." } ;
 
 HELP: add-renamed-word