sequences.extras: Add a couple words for prepending spaces to lines

[factor.git] / extra / sequences / extras / extras.factor

diff --git a/extra/sequences/extras/extras.factor b/extra/sequences/extras/extras.factor
index 2d3b67ed14c8dc88bda5e97d770156e162ef96ea..0d37e3e14d118f96a3c9de09c4258144c6c767b2 100644 (file)
--- a/extra/sequences/extras/extras.factor
+++ b/extra/sequences/extras/extras.factor
@@ -282,6 +282,9 @@ PRIVATE>
 : map-from ( ... seq quot: ( ... elt -- ... newelt ) i -- ... newseq )
     pick map-from-as ; inline
 
+: map-if ( ... seq if-quot: ( ... elt -- ... ? ) map-quot: ( ... elt -- ... newelt ) -- ... newseq )
+    '[ dup @ _ when ] map ; inline
+
 <PRIVATE
 
 : push-map-if ( ..a elt filter-quot: ( ..a elt -- ..b ? ) map-quot: ( ..a elt -- ..b newelt ) accum -- ..b )
@@ -376,6 +379,12 @@ PRIVATE>
 : >string-list ( seq -- seq' )
     [ "\"" 1surround ] map "," join ;
 
+: with-string-lines ( str quot -- str' )
+    [ string-lines ] dip map "\n" join ; inline
+
+: prepend-lines-with-spaces ( str -- str' )
+    [ "    " prepend ] with-string-lines ;
+
 : one? ( ... seq quot: ( ... elt -- ... ? ) -- ... ? )
     [ find ] 2keep rot [
         [ 1 + ] 2dip find-from drop not