xref: /vim-8.2.3635/runtime/syntax/ruby.vim (revision 071d4279)
1*071d4279SBram Moolenaar" Vim syntax file
2*071d4279SBram Moolenaar" Language:		Ruby
3*071d4279SBram Moolenaar" Maintainer:		Doug Kearns
4*071d4279SBram Moolenaar" Previous Maintainer:	Mirko Nasato
5*071d4279SBram Moolenaar" Last Change:		2003 May 31
6*071d4279SBram Moolenaar" URL:			http://mugca.its.monash.edu.au/~djkea2/vim/syntax/ruby.vim
7*071d4279SBram Moolenaar
8*071d4279SBram Moolenaar" $Id$
9*071d4279SBram Moolenaar
10*071d4279SBram Moolenaar" Thanks to perl.vim authors, and to Reimer Behrends. :-) (MN)
11*071d4279SBram Moolenaar
12*071d4279SBram Moolenaar" For version 5.x: Clear all syntax items
13*071d4279SBram Moolenaar" For version 6.x: Quit when a syntax file was already loaded
14*071d4279SBram Moolenaarif version < 600
15*071d4279SBram Moolenaar  syntax clear
16*071d4279SBram Moolenaarelseif exists("b:current_syntax")
17*071d4279SBram Moolenaar  finish
18*071d4279SBram Moolenaarendif
19*071d4279SBram Moolenaar
20*071d4279SBram Moolenaar" Expression Substitution and Backslash Notation
21*071d4279SBram Moolenaarsyn match rubyExprSubst "\\\\\|\(\(\\M-\\C-\|\\c\|\\C-\|\\M-\)\w\)\|\(\\\o\{3}\|\\x\x\{2}\|\\[abefnrstv]\)" contained
22*071d4279SBram Moolenaarsyn match rubyExprSubst "#{[^}]*}" contained
23*071d4279SBram Moolenaarsyn match rubyExprSubst "#[$@]\w\+" contained
24*071d4279SBram Moolenaar
25*071d4279SBram Moolenaar" Numbers and ASCII Codes
26*071d4279SBram Moolenaarsyn match rubyNumber "\w\@<!\(?\(\\M-\\C-\|\\C-\\M-\|\\M-\\c\|\\c\\M-\|\\c\|\\C-\|\\M-\)\=\(\\\o\{3}\|\\x\x\{2}\|\\\=\S\)\)"
27*071d4279SBram Moolenaarsyn match rubyNumber "\<\(0x\x\+\|0b[01]\+\|0\o\+\|0\.\d\+\|0\|[1-9][\.0-9_]*\)\>"
28*071d4279SBram Moolenaar
29*071d4279SBram Moolenaar" Identifiers - constant, class and instance, global, symbol, iterator, predefined
30*071d4279SBram Moolenaarsyn match rubyLocalVariableOrMethod "[_[:lower:]][_[:alnum:]]*[?!=]\=" transparent contains=NONE
31*071d4279SBram Moolenaar
32*071d4279SBram Moolenaarif !exists("ruby_no_identifiers")
33*071d4279SBram Moolenaar  syn match rubyConstant		"\(::\)\=\zs\u\w*"
34*071d4279SBram Moolenaar  syn match rubyClassVariable		"@@\h\w*"
35*071d4279SBram Moolenaar  syn match rubyInstanceVariable	"@\h\w*"
36*071d4279SBram Moolenaar  syn match rubyGlobalVariable		"$\(\h\w*\|-.\)"
37*071d4279SBram Moolenaar  syn match rubySymbol			":\@<!:\(\$\|@@\=\)\=\h\w*[?!=]\="
38*071d4279SBram Moolenaar  syn match rubyIterator		"|[ ,a-zA-Z0-9_*]\+|"
39*071d4279SBram Moolenaar
40*071d4279SBram Moolenaar  syn match rubyPredefinedVariable "$[!"$&'*+,./0:;<=>?@\\_`~1-9]"
41*071d4279SBram Moolenaar  syn match rubyPredefinedVariable "$-[0FIKadilpvw]"
42*071d4279SBram Moolenaar  syn match rubyPredefinedVariable "$\(defout\|stderr\|stdin\|stdout\)\>"
43*071d4279SBram Moolenaar  syn match rubyPredefinedVariable "$\(DEBUG\|FILENAME\|KCODE\|LOAD_PATH\|SAFE\|VERBOSE\)\>"
44*071d4279SBram Moolenaar  syn match rubyPredefinedConstant "__\(FILE\|LINE\)__\>"
45*071d4279SBram Moolenaar  syn match rubyPredefinedConstant "\<\(::\)\=\zs\(MatchingData\|NotImplementError\|ARGF\|ARGV\|ENV\)\>"
46*071d4279SBram Moolenaar  syn match rubyPredefinedConstant "\<\(::\)\=\zs\(DATA\|FALSE\|NIL\|RUBY_PLATFORM\|RUBY_RELEASE_DATE\)\>"
47*071d4279SBram Moolenaar  syn match rubyPredefinedConstant "\<\(::\)\=\zs\(RUBY_VERSION\|STDERR\|STDIN\|STDOUT\|TOPLEVEL_BINDING\|TRUE\)\>"
48*071d4279SBram Moolenaar  "Obsolete Global Constants
49*071d4279SBram Moolenaar  "syn match rubyPredefinedConstant "\<\(::\)\=\zs\(PLATFORM\|RELEASE\|VERSION\)\>"
50*071d4279SBram Moolenaarendif
51*071d4279SBram Moolenaar
52*071d4279SBram Moolenaar"
53*071d4279SBram Moolenaar" BEGIN Autogenerated Stuff
54*071d4279SBram Moolenaar"
55*071d4279SBram Moolenaar" Generalized Regular Expression
56*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r!"  end="![iomx]*"  skip="\\\\\|\\!"  contains=rubyExprSubst fold
57*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r\"" end="\"[iomx]*" skip="\\\\\|\\\"" contains=rubyExprSubst fold
58*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r#"  end="#[iomx]*"  skip="\\\\\|\\#"  contains=rubyExprSubst fold
59*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r\$" end="\$[iomx]*" skip="\\\\\|\\\$" contains=rubyExprSubst fold
60*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r%"  end="%[iomx]*"  skip="\\\\\|\\%"  contains=rubyExprSubst fold
61*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r&"  end="&[iomx]*"  skip="\\\\\|\\&"  contains=rubyExprSubst fold
62*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r'"  end="'[iomx]*"  skip="\\\\\|\\'"  contains=rubyExprSubst fold
63*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r\*" end="\*[iomx]*" skip="\\\\\|\\\*" contains=rubyExprSubst fold
64*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r+"  end="+[iomx]*"  skip="\\\\\|\\+"  contains=rubyExprSubst fold
65*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r-"  end="-[iomx]*"  skip="\\\\\|\\-"  contains=rubyExprSubst fold
66*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r\." end="\.[iomx]*" skip="\\\\\|\\\." contains=rubyExprSubst fold
67*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r/"  end="/[iomx]*"  skip="\\\\\|\\/"  contains=rubyExprSubst fold
68*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r:"  end=":[iomx]*"  skip="\\\\\|\\:"  contains=rubyExprSubst fold
69*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r;"  end=";[iomx]*"  skip="\\\\\|\\;"  contains=rubyExprSubst fold
70*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r="  end="=[iomx]*"  skip="\\\\\|\\="  contains=rubyExprSubst fold
71*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r?"  end="?[iomx]*"  skip="\\\\\|\\?"  contains=rubyExprSubst fold
72*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r@"  end="@[iomx]*"  skip="\\\\\|\\@"  contains=rubyExprSubst fold
73*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r\\" end="\\[iomx]*"			  contains=rubyExprSubst fold
74*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r\^" end="\^[iomx]*" skip="\\\\\|\\\^" contains=rubyExprSubst fold
75*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r`"  end="`[iomx]*"  skip="\\\\\|\\`"  contains=rubyExprSubst fold
76*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r|"  end="|[iomx]*"  skip="\\\\\|\\|"  contains=rubyExprSubst fold
77*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r\~" end="\~[iomx]*" skip="\\\\\|\\\~" contains=rubyExprSubst fold
78*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r{"  end="}[iomx]*"  skip="\\\\\|\\}"  contains=rubyExprSubst fold
79*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r<"  end=">[iomx]*"  skip="\\\\\|\\>"  contains=rubyExprSubst fold
80*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r\[" end="\][iomx]*" skip="\\\\\|\\\]" contains=rubyExprSubst fold
81*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%r("  end=")[iomx]*"  skip="\\\\\|\\)"  contains=rubyExprSubst fold
82*071d4279SBram Moolenaar
83*071d4279SBram Moolenaar" Generalized Single Quoted String and Array of Strings
84*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]!"  end="!"  skip="\\\\\|\\!"
85*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]\"" end="\"" skip="\\\\\|\\\""
86*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]#"  end="#"  skip="\\\\\|\\#"
87*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]\$" end="\$" skip="\\\\\|\\\$"
88*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]%"  end="%"  skip="\\\\\|\\%"
89*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]&"  end="&"  skip="\\\\\|\\&"
90*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]'"  end="'"  skip="\\\\\|\\'"
91*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]\*" end="\*" skip="\\\\\|\\\*"
92*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]+"  end="+"  skip="\\\\\|\\+"
93*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]-"  end="-"  skip="\\\\\|\\-"
94*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]\." end="\." skip="\\\\\|\\\."
95*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]/"  end="/"  skip="\\\\\|\\/"
96*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]:"  end=":"  skip="\\\\\|\\:"
97*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq];"  end=";"  skip="\\\\\|\\;"
98*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]="  end="="  skip="\\\\\|\\="
99*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]?"  end="?"  skip="\\\\\|\\?"
100*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]@"  end="@"  skip="\\\\\|\\@"
101*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]\\" end="\\"
102*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]\^" end="\^" skip="\\\\\|\\\^"
103*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]`"  end="`"  skip="\\\\\|\\`"
104*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]|"  end="|"  skip="\\\\\|\\|"
105*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]\~" end="\~" skip="\\\\\|\\\~"
106*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]{"  end="}"  skip="\\\\\|\\}"
107*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]<"  end=">"  skip="\\\\\|\\>"
108*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]\[" end="\]" skip="\\\\\|\\\]"
109*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[wq]("  end=")"  skip="\\\\\|\\)"
110*071d4279SBram Moolenaar
111*071d4279SBram Moolenaar" Generalized Double Quoted String and Shell Command Output
112*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=!"  end="!"  skip="\\\\\|\\!"  contains=rubyExprSubst
113*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=\"" end="\"" skip="\\\\\|\\\"" contains=rubyExprSubst
114*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=#"  end="#"  skip="\\\\\|\\#"  contains=rubyExprSubst
115*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=\$" end="\$" skip="\\\\\|\\\$" contains=rubyExprSubst
116*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=%"  end="%"  skip="\\\\\|\\%"  contains=rubyExprSubst
117*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=&"  end="&"  skip="\\\\\|\\&"  contains=rubyExprSubst
118*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\='"  end="'"  skip="\\\\\|\\'"  contains=rubyExprSubst
119*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=\*" end="\*" skip="\\\\\|\\\*" contains=rubyExprSubst
120*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=+"  end="+"  skip="\\\\\|\\+"  contains=rubyExprSubst
121*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=-"  end="-"  skip="\\\\\|\\-"  contains=rubyExprSubst
122*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=\." end="\." skip="\\\\\|\\\." contains=rubyExprSubst
123*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=/"  end="/"  skip="\\\\\|\\/"  contains=rubyExprSubst
124*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=:"  end=":"  skip="\\\\\|\\:"  contains=rubyExprSubst
125*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=;"  end=";"  skip="\\\\\|\\;"  contains=rubyExprSubst
126*071d4279SBram Moolenaar"syn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=="    end="="  skip="\\\\\|\\="  contains=rubyExprSubst
127*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]="    end="="  skip="\\\\\|\\="  contains=rubyExprSubst
128*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=?"  end="?"  skip="\\\\\|\\?"  contains=rubyExprSubst
129*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=@"  end="@"  skip="\\\\\|\\@"  contains=rubyExprSubst
130*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=\\" end="\\"			contains=rubyExprSubst
131*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=\^" end="\^" skip="\\\\\|\\\^" contains=rubyExprSubst
132*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=`"  end="`"  skip="\\\\\|\\`"  contains=rubyExprSubst
133*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=|"  end="|"  skip="\\\\\|\\|"  contains=rubyExprSubst
134*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=\~" end="\~" skip="\\\\\|\\\~" contains=rubyExprSubst
135*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\={"  end="}"  skip="\\\\\|\\}"  contains=rubyExprSubst
136*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=<"  end=">"  skip="\\\\\|\\>"  contains=rubyExprSubst
137*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=\[" end="\]" skip="\\\\\|\\\]" contains=rubyExprSubst
138*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="%[Qx]\=("  end=")"  skip="\\\\\|\\)"  contains=rubyExprSubst
139*071d4279SBram Moolenaar
140*071d4279SBram Moolenaar" Normal String and Shell Command Output
141*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="\"" end="\"" skip="\\\\\|\\\"" contains=rubyExprSubst
142*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="'"  end="'"  skip="\\\\\|\\'"
143*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="`"  end="`"  skip="\\\\\|\\`"  contains=rubyExprSubst
144*071d4279SBram Moolenaar"
145*071d4279SBram Moolenaar" END Autogenerated Stuff
146*071d4279SBram Moolenaar"
147*071d4279SBram Moolenaar
148*071d4279SBram Moolenaar" Normal Regular Expression
149*071d4279SBram Moolenaarsyn region rubyString matchgroup=rubyStringDelimit start="^\s*/" start="\<and\s*/"lc=3 start="\<or\s*/"lc=2 start="\<while\s*/"lc=5 start="\<until\s*/"lc=5 start="\<unless\s*/"lc=6 start="\<if\s*/"lc=2 start="\<elsif\s*/"lc=5 start="\<when\s*/"lc=4 start="[\~=!|&(,[]\s*/"lc=1 end="/[iomx]*" skip="\\\\\|\\/" contains=rubyExprSubst
150*071d4279SBram Moolenaar
151*071d4279SBram Moolenaar" Here Document
152*071d4279SBram Moolenaarif version < 600
153*071d4279SBram Moolenaar  syn region rubyString matchgroup=rubyStringDelimit start=+<<-\(\u\{3,}\|'\u\{3,}'\|"\u\{3,}"\|`\u\{3,}`\)+hs=s+2 end=+^\s*\u\{3,}$+ fold
154*071d4279SBram Moolenaar  syn region rubyString matchgroup=rubyStringDelimit start=+<<-\(EOF\|'EOF'\|"EOF"\|`EOF`\)+hs=s+2		   end=+^\s*EOF$+     contains=rubyExprSubst fold
155*071d4279SBram Moolenaar  syn region rubyString matchgroup=rubyStringDelimit start=+<<-\(EOS\|'EOS'\|"EOS"\|`EOS`\)+hs=s+2		   end=+^\s*EOS$+     contains=rubyExprSubst fold
156*071d4279SBram Moolenaar  syn region rubyString matchgroup=rubyStringDelimit start=+<<\(\u\{3,}\|'\u\{3,}'\|"\u\{3,}"\|`\u\{3,}`\)+hs=s+2  end=+^\u\{3,}$+    fold
157*071d4279SBram Moolenaar  syn region rubyString matchgroup=rubyStringDelimit start=+<<\(EOF\|'EOF'\|"EOF"\|`EOF`\)+hs=s+2		   end=+^EOF$+	      contains=rubyExprSubst fold
158*071d4279SBram Moolenaar  syn region rubyString matchgroup=rubyStringDelimit start=+<<\(EOS\|'EOS'\|"EOS"\|`EOS`\)+hs=s+2		   end=+^EOS$+	      contains=rubyExprSubst fold
159*071d4279SBram Moolenaarelse
160*071d4279SBram Moolenaar syn region rubyString matchgroup=rubyStringDelimit start=+\(class\s*\)\@<!<<\z(\h\w*\)\s*$+hs=s+2  end=+^\z1$+    contains=rubyExprSubst fold
161*071d4279SBram Moolenaar syn region rubyString matchgroup=rubyStringDelimit start=+\(class\s*\)\@<!<<"\z(.*\)"\s*$+hs=s+2   end=+^\z1$+    contains=rubyExprSubst fold
162*071d4279SBram Moolenaar syn region rubyString matchgroup=rubyStringDelimit start=+\(class\s*\)\@<!<<'\z(.*\)'\s*$+hs=s+2   end=+^\z1$+    fold
163*071d4279SBram Moolenaar syn region rubyString matchgroup=rubyStringDelimit start=+\(class\s*\)\@<!<<`\z(.*\)`\s*$+hs=s+2   end=+^\z1$+    contains=rubyExprSubst fold
164*071d4279SBram Moolenaar
165*071d4279SBram Moolenaar syn region rubyString matchgroup=rubyStringDelimit start=+\(class\s*\)\@<!<<-\z(\h\w*\)\s*$+hs=s+3 end=+^\s*\z1$+ contains=rubyExprSubst fold
166*071d4279SBram Moolenaar syn region rubyString matchgroup=rubyStringDelimit start=+\(class\s*\)\@<!<<-"\z(.*\)"\s*$+hs=s+3  end=+^\s*\z1$+ contains=rubyExprSubst fold
167*071d4279SBram Moolenaar syn region rubyString matchgroup=rubyStringDelimit start=+\(class\s*\)\@<!<<-'\z(.*\)'\s*$+hs=s+3  end=+^\s*\z1$+ fold
168*071d4279SBram Moolenaar syn region rubyString matchgroup=rubyStringDelimit start=+\(class\s*\)\@<!<<-`\z(.*\)`\s*$+hs=s+3  end=+^\s*\z1$+ contains=rubyExprSubst fold
169*071d4279SBram Moolenaarendif
170*071d4279SBram Moolenaar
171*071d4279SBram Moolenaar" Expensive Mode - colorize *end* according to opening statement
172*071d4279SBram Moolenaarif !exists("ruby_no_expensive")
173*071d4279SBram Moolenaar  syn region rubyFunction      matchgroup=rubyDefine start="^\s*def\s" matchgroup=NONE end="\ze\(\s\|(\|;\|$\)" skip="\.\|\(::\)" oneline fold
174*071d4279SBram Moolenaar  syn region rubyClassOrModule matchgroup=rubyDefine start="^\s*\(class\|module\)\s"   end="<\|$\|;\|\>"he=e-1 oneline fold
175*071d4279SBram Moolenaar
176*071d4279SBram Moolenaar  syn region rubyBlock start="^\s*def\s\+"rs=s		   matchgroup=rubyDefine end="\<end\>" contains=ALLBUT,rubyExprSubst,rubyTodo nextgroup=rubyFunction fold
177*071d4279SBram Moolenaar  syn region rubyBlock start="^\s*\(class\|module\)\>"rs=s matchgroup=rubyDefine end="\<end\>" contains=ALLBUT,rubyExprSubst,rubyTodo nextgroup=rubyClassOrModule fold
178*071d4279SBram Moolenaar
179*071d4279SBram Moolenaar  " modifiers + redundant *do*
180*071d4279SBram Moolenaar  syn match  rubyControl "\<\(if\|unless\|while\|until\|do\)\>"
181*071d4279SBram Moolenaar
182*071d4279SBram Moolenaar  " *do* requiring *end*
183*071d4279SBram Moolenaar  syn region rubyDoBlock matchgroup=rubyControl start="\<do\>" end="\<end\>" contains=ALLBUT,rubyExprSubst,rubyTodo fold
184*071d4279SBram Moolenaar
185*071d4279SBram Moolenaar  " *{* requiring *}*
186*071d4279SBram Moolenaar  syn region rubyCurlyBlock start="{" end="}" contains=ALLBUT,rubyExprSubst,rubyTodo fold
187*071d4279SBram Moolenaar
188*071d4279SBram Moolenaar  " statements without *do*
189*071d4279SBram Moolenaar  syn region rubyNoDoBlock matchgroup=rubyControl start="\<\(case\|begin\)\>" start="^\s*\(if\|unless\)\>" start=";\s*\(if\|unless\)\>"hs=s+1 end="\<end\>" contains=ALLBUT,rubyExprSubst,rubyTodo fold
190*071d4279SBram Moolenaar
191*071d4279SBram Moolenaar  " statement with optional *do*
192*071d4279SBram Moolenaar  syn region rubyOptDoBlock matchgroup=rubyControl start="\<for\>" start="^\s*\(while\|until\)\>" start=";\s*\(while\|until\)\>"hs=s+1 end="\<end\>" contains=ALLBUT,rubyExprSubst,rubyTodo,rubyDoBlock,rubyCurlyBlock fold
193*071d4279SBram Moolenaar
194*071d4279SBram Moolenaar  if !exists("ruby_minlines")
195*071d4279SBram Moolenaar    let ruby_minlines = 50
196*071d4279SBram Moolenaar  endif
197*071d4279SBram Moolenaar  exec "syn sync minlines=" . ruby_minlines
198*071d4279SBram Moolenaar
199*071d4279SBram Moolenaarelse " not Expensive
200*071d4279SBram Moolenaar  syn region  rubyFunction      matchgroup=rubyControl start="^\s*def\s" matchgroup=NONE end="\ze\(\s\|(\|;\|$\)" skip="\.\|\(::\)" oneline fold
201*071d4279SBram Moolenaar  syn region  rubyClassOrModule matchgroup=rubyControl start="^\s*\(class\|module\)\s"   end="<\|$\|;\|\>"he=e-1 oneline fold
202*071d4279SBram Moolenaar  syn keyword rubyControl case begin do for if unless while until end
203*071d4279SBram Moolenaarendif " Expensive?
204*071d4279SBram Moolenaar
205*071d4279SBram Moolenaar" Keywords
206*071d4279SBram Moolenaarsyn keyword rubyControl   then else elsif when ensure rescue
207*071d4279SBram Moolenaarsyn keyword rubyControl   and or not in loop
208*071d4279SBram Moolenaarsyn keyword rubyControl   break redo retry next return
209*071d4279SBram Moolenaarsyn match   rubyKeyword   "\<defined?"
210*071d4279SBram Moolenaarsyn keyword rubyKeyword   alias lambda proc super undef yield
211*071d4279SBram Moolenaarsyn match   rubyInclude   "^\s*include\>"
212*071d4279SBram Moolenaarsyn keyword rubyInclude   load require
213*071d4279SBram Moolenaarsyn keyword rubyTodo      FIXME NOTE TODO XXX contained
214*071d4279SBram Moolenaarsyn keyword rubyBoolean   true false self nil
215*071d4279SBram Moolenaarsyn keyword rubyException raise fail catch throw
216*071d4279SBram Moolenaarsyn keyword rubyBeginEnd  BEGIN END
217*071d4279SBram Moolenaar
218*071d4279SBram Moolenaar" Comments and Documentation
219*071d4279SBram Moolenaarif version < 600
220*071d4279SBram Moolenaar  syn match  rubySharpBang "#!.*"
221*071d4279SBram Moolenaarelse
222*071d4279SBram Moolenaar  syn match  rubySharpBang "\%^#!.*"
223*071d4279SBram Moolenaarendif
224*071d4279SBram Moolenaarsyn match  rubyComment       "#.*" contains=rubyTodo
225*071d4279SBram Moolenaarsyn region rubyDocumentation start="^=begin" end="^=end.*$" contains=rubyTodo fold
226*071d4279SBram Moolenaar
227*071d4279SBram Moolenaar" Note: this is a hack to prevent 'keywords' being highlighted as such when used as method names
228*071d4279SBram Moolenaarsyn match rubyKeywordAsMethod "\.\@<!\.\(\s*\n\s*\)*\(alias\|and\|begin\|break\|case\|catch\|class\|def\|do\|elsif\)\>"        transparent contains=NONE
229*071d4279SBram Moolenaarsyn match rubyKeywordAsMethod "\.\@<!\.\(\s*\n\s*\)*\(else\|fail\|false\|ensure\|for\|end\|if\|in\|include\|lambda\)\>"        transparent contains=NONE
230*071d4279SBram Moolenaarsyn match rubyKeywordAsMethod "\.\@<!\.\(\s*\n\s*\)*\(load\|loop\|module\|next\|nil\|not\|or\|proc\|raise\|require\)\>"        transparent contains=NONE
231*071d4279SBram Moolenaarsyn match rubyKeywordAsMethod "\.\@<!\.\(\s*\n\s*\)*\(redo\|rescue\|retry\|return\|self\|super\|then\|throw\|true\|unless\)\>" transparent contains=NONE
232*071d4279SBram Moolenaarsyn match rubyKeywordAsMethod "\.\@<!\.\(\s*\n\s*\)*\(undef\|until\|when\|while\|yield\|BEGIN\|END\|__FILE__\|__LINE__\)\>"    transparent contains=NONE
233*071d4279SBram Moolenaar
234*071d4279SBram Moolenaar" __END__ Directive
235*071d4279SBram Moolenaarsyn region rubyData matchgroup=rubyDataDirective start="^__END__$" matchgroup=NONE end="." skip="."
236*071d4279SBram Moolenaar
237*071d4279SBram Moolenaar" Define the default highlighting.
238*071d4279SBram Moolenaar" For version 5.7 and earlier: only when not done already
239*071d4279SBram Moolenaar" For version 5.8 and later: only when an item doesn't have highlighting yet
240*071d4279SBram Moolenaarif version >= 508 || !exists("did_ruby_syntax_inits")
241*071d4279SBram Moolenaar  if version < 508
242*071d4279SBram Moolenaar    let did_ruby_syntax_inits = 1
243*071d4279SBram Moolenaar    command -nargs=+ HiLink hi link <args>
244*071d4279SBram Moolenaar  else
245*071d4279SBram Moolenaar    command -nargs=+ HiLink hi def link <args>
246*071d4279SBram Moolenaar  endif
247*071d4279SBram Moolenaar
248*071d4279SBram Moolenaar  HiLink rubyDefine			Define
249*071d4279SBram Moolenaar  HiLink rubyFunction			Function
250*071d4279SBram Moolenaar  HiLink rubyControl			Statement
251*071d4279SBram Moolenaar  HiLink rubyInclude			Include
252*071d4279SBram Moolenaar  HiLink rubyNumber			Number
253*071d4279SBram Moolenaar  HiLink rubyBoolean			Boolean
254*071d4279SBram Moolenaar  HiLink rubyException			Exception
255*071d4279SBram Moolenaar  HiLink rubyClassOrModule		Type
256*071d4279SBram Moolenaar  HiLink rubyIdentifier			Identifier
257*071d4279SBram Moolenaar  HiLink rubyClassVariable		rubyIdentifier
258*071d4279SBram Moolenaar  HiLink rubyConstant			rubyIdentifier
259*071d4279SBram Moolenaar  HiLink rubyGlobalVariable		rubyIdentifier
260*071d4279SBram Moolenaar  HiLink rubyIterator			rubyIdentifier
261*071d4279SBram Moolenaar  HiLink rubyInstanceVariable		rubyIdentifier
262*071d4279SBram Moolenaar  HiLink rubyPredefinedIdentifier	rubyIdentifier
263*071d4279SBram Moolenaar  HiLink rubyPredefinedConstant		rubyPredefinedIdentifier
264*071d4279SBram Moolenaar  HiLink rubyPredefinedVariable		rubyPredefinedIdentifier
265*071d4279SBram Moolenaar  HiLink rubySymbol			rubyIdentifier
266*071d4279SBram Moolenaar  HiLink rubySharpBang			PreProc
267*071d4279SBram Moolenaar  HiLink rubyKeyword			Keyword
268*071d4279SBram Moolenaar  HiLink rubyBeginEnd			Statement
269*071d4279SBram Moolenaar
270*071d4279SBram Moolenaar  HiLink rubyString			String
271*071d4279SBram Moolenaar  HiLink rubyStringDelimit		Delimiter
272*071d4279SBram Moolenaar  HiLink rubyExprSubst			Special
273*071d4279SBram Moolenaar
274*071d4279SBram Moolenaar  HiLink rubyComment			Comment
275*071d4279SBram Moolenaar  HiLink rubyDocumentation		Comment
276*071d4279SBram Moolenaar  HiLink rubyTodo			Todo
277*071d4279SBram Moolenaar  HiLink rubyData			Comment
278*071d4279SBram Moolenaar  HiLink rubyDataDirective		Delimiter
279*071d4279SBram Moolenaar
280*071d4279SBram Moolenaar  delcommand HiLink
281*071d4279SBram Moolenaarendif
282*071d4279SBram Moolenaar
283*071d4279SBram Moolenaarlet b:current_syntax = "ruby"
284*071d4279SBram Moolenaar
285*071d4279SBram Moolenaar" vim: nowrap tabstop=8
286