runtime(python2): Highlight b-strings in Python 2.7

f4nb0y · chrisbra · commit edce68912eac · 2025-07-15T20:23:59.000+02:00
related: #14033 related: #17726 closes: #17757 Signed-off-by: Rob B <github@0x7e.net> Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/syntax/python2.vim b/runtime/syntax/python2.vim
@@ -3,6 +3,7 @@
 " Maintainer:	Zvezdan Petkovic <zpetkovic@acm.org>
 " Last Change:	2016 Oct 29
 " 2025 Jul 14 by Vim project: highlight unicode strings
+" 2025 Jul 15 by Vim project: highlight b-strings
 " Credits:	Neil Schemenauer <nas@python.ca>
 "		Dmitry Vasiliev
 "		Rob B
@@ -143,16 +144,16 @@ syn keyword pythonTodo		FIXME NOTE NOTES TODO XXX contained
 
 " Triple-quoted strings can contain doctests.
 syn region  pythonString matchgroup=pythonQuotes
-      \ start=+\z(['"]\)+ end="\z1" skip="\\\\\|\\\z1"
+      \ start=+[bB]\=\z(['"]\)+ end="\z1" skip="\\\\\|\\\z1"
       \ contains=pythonEscape,@Spell
 syn region  pythonString matchgroup=pythonTripleQuotes
-      \ start=+\z('''\|"""\)+ end="\z1" keepend
+      \ start=+[bB]\=\z('''\|"""\)+ end="\z1" keepend
       \ contains=pythonEscape,pythonSpaceError,pythonDoctest,@Spell
 syn region  pythonRawString matchgroup=pythonQuotes
-      \ start=+[rR]\z(['"]\)+ end="\z1" skip="\\\\\|\\\z1"
+      \ start=+[bB]\=[rR]\z(['"]\)+ end="\z1" skip="\\\\\|\\\z1"
       \ contains=@Spell
 syn region  pythonRawString matchgroup=pythonTripleQuotes
-      \ start=+[rR]\z('''\|"""\)+ end="\z1" keepend
+      \ start=+[bB]\=[rR]\z('''\|"""\)+ end="\z1" keepend
       \ contains=pythonSpaceError,pythonDoctest,@Spell
 
 " Unicode strings
diff --git a/runtime/syntax/testdir/dumps/python2_strings_02.dump b/runtime/syntax/testdir/dumps/python2_strings_02.dump
@@ -1,20 +1,20 @@
 |#+0#0000e05#ffffff0| |B|-|s|t|r|i|n|g|s|:| |P|r|e|f|i|x| |i|s| |a|l@1|o|w|e|d| |b|u|t| |i|g|n|o|r|e|d| |(|h|t@1|p|s|:|/@1|p|e|p|s|.|p|y|t|h|o|n|.|o|r|g|/|p|e|p|-|3|1@1
 |2|)| +0#0000000&@72
-|t|e|s|t| |=| |b|'+0#e000002&|S|t|r|i|n|g| |w|i|t|h| |e|s|c|a|p|e|s| |\+0#e000e06&|'| +0#e000002&|a|n|d| |\+0#e000e06&|"| +0#e000002&|a|n|d| |\+0#e000e06&|t|'+0#e000002&| +0#0000000&@28
-|t|e|s|t| |=| |B|"+0#e000002&|S|t|r|i|n|g| |w|i|t|h| |e|s|c|a|p|e|s| |\+0#e000e06&|0|4|0| +0#e000002&|a|n|d| |\+0#e000e06&|x|F@1|"+0#e000002&| +0#0000000&@31
-|t|e|s|t| |=| |b|'+0#e000002&|S|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\|u|0@1|A|1| |a|n|d| |\|U|0@2|1|0|6|0|5| |a|n|d| |\|N|{|I|N|V|E|R|T|E|D| |E|X|C|L|A|M|A|T
+|t|e|s|t| |=| |b+0#e000002&|'|S|t|r|i|n|g| |w|i|t|h| |e|s|c|a|p|e|s| |\+0#e000e06&|'| +0#e000002&|a|n|d| |\+0#e000e06&|"| +0#e000002&|a|n|d| |\+0#e000e06&|t|'+0#e000002&| +0#0000000&@28
+|t|e|s|t| |=| |B+0#e000002&|"|S|t|r|i|n|g| |w|i|t|h| |e|s|c|a|p|e|s| |\+0#e000e06&|0|4|0| +0#e000002&|a|n|d| |\+0#e000e06&|x|F@1|"+0#e000002&| +0#0000000&@31
+|t|e|s|t| |=| |b+0#e000002&|'|S|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\|u|0@1|A|1| |a|n|d| |\|U|0@2|1|0|6|0|5| |a|n|d| |\|N|{|I|N|V|E|R|T|E|D| |E|X|C|L|A|M|A|T
 |I|O|N| |M|A|R|K|}|'| +0#0000000&@64
->t|e|s|t| |=| |B|"+0#e000002&|S|t|r|i|n|g| |w|i|t|h| |e|s|c|a|p|e|d| |\+0#e000e06&@1| +0#e000002&|b|a|c|k|s|l|a|s|h| |a|n|d| |i|g|n|o|r|e|d| |\+0#e000e06&| +0#0000000&@19
+>t|e|s|t| |=| |B+0#e000002&|"|S|t|r|i|n|g| |w|i|t|h| |e|s|c|a|p|e|d| |\+0#e000e06&@1| +0#e000002&|b|a|c|k|s|l|a|s|h| |a|n|d| |i|g|n|o|r|e|d| |\+0#e000e06&| +0#0000000&@19
 |n+0#e000002&|e|w|l|i|n|e|"| +0#0000000&@66
-|t|e|s|t| |=| |b|'+0#e000002&@2|S|t|r|i|n|g| |w|i|t|h| |q|u|o|t|e|s| |'| |a|n|d| |"| +0#0000000&@37
+|t|e|s|t| |=| |b+0#e000002&|'@2|S|t|r|i|n|g| |w|i|t|h| |q|u|o|t|e|s| |'| |a|n|d| |"| +0#0000000&@37
 |a+0#e000002&|n|d| |e|s|c|a|p|e|s| |\+0#e000e06&|t| +0#e000002&|a|n|d| |\+0#e000e06&|0|4|0| +0#e000002&|a|n|d| |\+0#e000e06&|x|F@1| +0#0000000&@42
 |a+0#e000002&|n|d| |l|i|t|e|r|a|l| |\|u|0@1|A|1| |a|n|d| |\|U|0@2|1|0|6|0|5|'@2| +0#0000000&@38
-|t|e|s|t| |=| |B|"+0#e000002&@2|S|t|r|i|n|g| |w|i|t|h| |q|u|o|t|e|s| |'| |a|n|d| |"| +0#0000000&@37
+|t|e|s|t| |=| |B+0#e000002&|"@2|S|t|r|i|n|g| |w|i|t|h| |q|u|o|t|e|s| |'| |a|n|d| |"| +0#0000000&@37
 |a+0#e000002&|n|d| |e|s|c|a|p|e|s| |\+0#e000e06&|t| +0#e000002&|a|n|d| |\+0#e000e06&|0|4|0| +0#e000002&|a|n|d| |\+0#e000e06&|x|F@1| +0#0000000&@42
 |a+0#e000002&|n|d| |l|i|t|e|r|a|l| |\|u|0@1|A|1| |a|n|d| |\|U|0@2|1|0|6|0|5|"@2| +0#0000000&@38
 @75
 |#+0#0000e05&| |R|a|w| |b|-|s|t|r|i|n|g|s| +0#0000000&@59
-|t|e|s|t| |=| |b|r+0#e000002&|'|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\|'| |a|n|d| |\|"| |a|n|d| |\|t|'| +0#0000000&@23
-|t|e|s|t| |=| |b|R+0#e000002&|"|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\|0|4|0| |a|n|d| |\|x|F@1|"| +0#0000000&@26
-|t|e|s|t| |=| |B|r+0#e000002&|'|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\|u|0@1|A|1| |a|n|d| |\|U|0@2|1|0|6|0|5| |a|n|d| |\|N|{|I|N|V|E|R|T|E|D| |@+0#4040ff13&@2
+|t|e|s|t| |=| |b+0#e000002&|r|'|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\|'| |a|n|d| |\|"| |a|n|d| |\|t|'| +0#0000000&@23
+|t|e|s|t| |=| |b+0#e000002&|R|"|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\|0|4|0| |a|n|d| |\|x|F@1|"| +0#0000000&@26
+|t|e|s|t| |=| |B+0#e000002&|r|'|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\|u|0@1|A|1| |a|n|d| |\|U|0@2|1|0|6|0|5| |a|n|d| |\|N|{|I|N|V|E|R|T|E|D| |@+0#4040ff13&@2
 | +0#0000000&@56|3|4|,|1| @9|4|3|%| 
diff --git a/runtime/syntax/testdir/dumps/python2_strings_03.dump b/runtime/syntax/testdir/dumps/python2_strings_03.dump
@@ -1,11 +1,11 @@
-|t+0&#ffffff0|e|s|t| |=| |B|r+0#e000002&|'|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\|u|0@1|A|1| |a|n|d| |\|U|0@2|1|0|6|0|5| |a|n|d| |\|N|{|I|N|V|E|R|T|E|D| |E|X|C
+|t+0&#ffffff0|e|s|t| |=| |B+0#e000002&|r|'|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\|u|0@1|A|1| |a|n|d| |\|U|0@2|1|0|6|0|5| |a|n|d| |\|N|{|I|N|V|E|R|T|E|D| |E|X|C
 |L|A|M|A|T|I|O|N| |M|A|R|K|}|'| +0#0000000&@59
-|t|e|s|t| |=| |B|R+0#e000002&|"|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\@1| |b|a|c|k|s|l|a|s|h|e|s| |a|n|d| |l|i|t|e|r|a|l| |\| +0#0000000&@12
+|t|e|s|t| |=| |B+0#e000002&|R|"|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |l|i|t|e|r|a|l| |\@1| |b|a|c|k|s|l|a|s|h|e|s| |a|n|d| |l|i|t|e|r|a|l| |\| +0#0000000&@12
 |n+0#e000002&|e|w|l|i|n|e|"| +0#0000000&@66
-|t|e|s|t| |=| |b|r+0#e000002&|'@2|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |q|u|o|t|e|s| |'| |a|n|d| |"| +0#0000000&@32
+|t|e|s|t| |=| |b+0#e000002&|r|'@2|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |q|u|o|t|e|s| |'| |a|n|d| |"| +0#0000000&@32
 >a+0#e000002&|n|d| |l|i|t|e|r|a|l| |\|t| |a|n|d| |\|0|4|0| |a|n|d| |\|x|F@1| +0#0000000&@42
 |a+0#e000002&|n|d| |l|i|t|e|r|a|l| |\|u|0@1|A|1| |a|n|d| |\|U|0@2|1|0|6|0|5|'@2| +0#0000000&@38
-|t|e|s|t| |=| |B|R+0#e000002&|"@2|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |q|u|o|t|e|s| |'| |a|n|d| |"| +0#0000000&@32
+|t|e|s|t| |=| |B+0#e000002&|R|"@2|R|a|w| |s|t|r|i|n|g| |w|i|t|h| |q|u|o|t|e|s| |'| |a|n|d| |"| +0#0000000&@32
 |a+0#e000002&|n|d| |l|i|t|e|r|a|l| |\|t| |a|n|d| |\|0|4|0| |a|n|d| |\|x|F@1| +0#0000000&@42
 |a+0#e000002&|n|d| |l|i|t|e|r|a|l| |\|u|0@1|A|1| |a|n|d| |\|U|0@2|1|0|6|0|5|"@2| +0#0000000&@38
 @75
diff --git a/runtime/syntax/testdir/input/sh_ksh_array.sh b/runtime/syntax/testdir/input/sh_ksh_array.sh
