This file is indexed.

/usr/share/gtksourceview-3.0/language-specs/forth.lang is in libgtksourceview-3.0-common 3.18.2-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
<?xml version="1.0" encoding="UTF-8"?>
<!--

 This file is part of GtkSourceView

 Author: Jens-Hanno Schwalm  <hanno@schwalm-bremen.de>
 Copyright (C) 2007 Jens-Hanno Schwalm; <hanno@schwalm-bremen.de>

 GtkSourceView is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.

 GtkSourceView is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

-->
<language id="forth" _name="Forth" version="2.0" _section="Source">
  <metadata>
    <property name="mimetypes">text/x-forth</property>
    <property name="globs">*.frt;*.fs</property>
    <property name="line-comment-start">\</property>
    <property name="block-comment-start">(*</property>
    <property name="block-comment-end">*)</property>
  </metadata>

  <styles>
    <style id="comment"       _name="Comment"            map-to="def:comment"/>
    <style id="string"        _name="String"             map-to="def:string"/>
    <style id="preprocessor"  _name="Preprocessor"       map-to="def:preprocessor"/>
    <style id="keyword"       _name="Keyword"            map-to="def:statement"/>
    <style id="type"          _name="Data Type"          map-to="def:type"/>
    <style id="number"        _name="Number"             map-to="def:decimal"/>
    <style id="debugs"        _name="Debug Code"         map-to="def:comment"/>
    <style id="error"         _name="Error Text"         map-to="def:error"/>
    <style id="compiler"      _name="Compiler Directive" map-to="def:identifier"/>
  </styles>

  <default-regex-options case-sensitive="false"/>

  <definitions>
    <context id="forth" class="no-spell-check">
      <include>
        <!--        single line comments                        \        \G        -->
        <context id="comment" style-ref="comment" end-at-line-end="true" class="comment" class-disabled="no-spell-check">
          <start>(?&lt;![^\s])(\\|--|\\G)(?![^\s])</start>
          <include>
            <context ref="def:in-line-comment"/>
          </include>
        </context>

        <!--        multiline comments ending with ")"        (        (S        (F        -->
        <context id="comment-multiline" style-ref="comment" class="comment" class-disabled="no-spell-check">
          <start>(?&lt;![^\s])(\(|\(S|\(F)(?![^\s])</start>
          <end>\)</end>
          <include>
            <context ref="def:in-comment"/>
          </include>
        </context>

        <!--        multiline comment (* ....*)        -->
        <context id="comment-multiline2" style-ref="comment" class="comment" class-disabled="no-spell-check">
          <start>(?&lt;![^\s])\(\*(?![^\s])</start>
          <end>\*\)(?![^\s])</end>
          <include>
            <context ref="def:in-comment"/>
          </include>
        </context>

        <!--        multiline comment DOC ... ENDDOC        -->
        <context id="comment-multiline3" style-ref="comment" class="comment" class-disabled="no-spell-check">
          <start>(?&lt;![^\s])DOC(?![^\s])</start>
          <end>(?&lt;![^\s])ENDDOC(?![^\s])</end>
          <include>
            <context ref="def:in-comment"/>
          </include>
        </context>

        <!--        preprocessor instructions followed by a string        -->
        <context id="preproc1" style-ref="preprocessor">
          <match extended="true">
            (?&lt;![^\s])
            (NEEDS|INCLUDE|IN|MARKER)\s+[^\s]*
            (?![^\s])
          </match>
        </context>

        <!--        REVISION instruction is followed by a filename plus a string between "..."        -->
        <context id="preproc2" style-ref="preprocessor">
          <match extended="true">
            (?&lt;![^\s])
            (REVISION)\s+[^\s]*\s*".*"
            (?![^\s])
          </match>
        </context>

        <!--        preprocessor instructions        -->
        <context id="preproc3" style-ref="preprocessor">
          <match extended="true">
            (?&lt;![^\s])
            (INCLUDED|INCLUDE-FILE)
            (?![^\s])
          </match>
        </context>

        <!--        all defining or compiler extension words are followed by another whitespace delinited word        -->
        <context id="definers" style-ref="type">
          <match extended="true">
            (?&lt;![^\s])
            (POSTPONE|\[COMPILE\]|\[CHAR\]|\['\]|COMPILE|CHAR|[DFT]?VALUE|[2FT]?VARIABLE|[DS]?FVARIABLE|[T]?USER|[T]?CODE|[DZFT]?LOCAL|
            [2FT]?CONSTANT|TCONSTANT-|TSUB|=\:|==\:|DEFER|HC\:|[VHTM]?\:)\s+[^\s]+
            (?![^\s])
          </match>
        </context>

        <!--        the grouped local words like LOCALS| read words until a last |        -->
        <context id="locals" style-ref="type">
          <match extended="true">
            (?&lt;![^\s])
            ([DFZ]?LOCALS)\|\s+[^\|]+[\|]
            (?![^\s])
          </match>
        </context>

        <!--        strings ended by a "                S"        ."        EVAL"        C"        Z"        -->
        <context id="string" style-ref="string" end-at-line-end="true" class="string" class-disabled="no-spell-check">
          <start>(?&lt;![^\s])(S|[.]|EVAL|C|Z|,)"\s</start>
          <end>"</end>
         </context>

        <!--        strings ended by a ~ character when " is inside a string:        .~        -->
        <context id="string2" style-ref="string" end-at-line-end="true" class="string" class-disabled="no-spell-check">
          <start>(?&lt;![^\s])(.~)\s</start>
          <end>~</end>
         </context>

        <!--        comment string  .( ..)        -->
        <context id="string3" style-ref="string" end-at-line-end="true" class="string" class-disabled="no-spell-check">
          <start>(?&lt;![^\s])[.]\(\s</start>
          <end>\)</end>
         </context>

        <!--        error strings ending with "                ABORT"        ?ERROR"        -->
        <context id="errorstring" style-ref="error" end-at-line-end="true" class="string" class-disabled="no-spell-check">
          <start>(?&lt;![^\s])(ABORT|\?ERROR)"\s</start>
          <end>"</end>
         </context>

        <!--        represent numbers including the hex, decimal and binary prefixes, also short characters        -->
        <context id="number" style-ref="number">
          <match extended="true">
            (?&lt;![^\s])
            ([$][-+]?[A-F0-9.]+ |
             [#][-+]?[0-9.]+ |
             [%][-+]?[0-1.]+ |
             [-+]?[0-9.]+ |
             [-+]?[0-9]+[.]?[0-9]*[eE][0-9]* |
             '[^\s]' |
             [\^][A-Za-z] |
             TRUE |
             FALSE)
            (?![^\s])
          </match>
        </context>

        <!--        Control flow Keywords -->
        <context id="keywords" style-ref="keyword">
          <match extended="true">
            (?&lt;![^\s])
            (\[IF\]|\[ELSE\]|\[THEN\]|\[DEFINED\]|\[UNDEFINED\]|\?DEF|\?UNDEF|THROW|CASE|ENDCASE|OF|ENDOF|FOR|NEXT|
                    IF[,]?|ELSE[,]?|THEN[,]?|ENDIF[,]?|BEGIN[,]?|WHILE[,]?|REPEAT[,]?|UNTIL[,]?|AGAIN[,]?|DO|LOOP|\?DO|\+LOOP|LEAVE|\?LEAVE|UNLOOP|EXIT|\?EXIT|
                    PAR|ENDPAR|STARTP|ENDP)
            (?![^\s])
          </match>
        </context>

        <!--        Compiler modifications -->
        <context id="keywords2" style-ref="compiler">
          <match extended="true">
            (?&lt;![^\s])
            (PRIVATE|PRIVATES|DEPRIVE|FORGET|IMMEDIATE|ALSO|ONLY|FORTH|DEFINITIONS|HEADERLESS)
            (?![^\s])
          </match>
        </context>

        <!--        Defining keywords without displaying the following word        -->
        <context id="keywords3" style-ref="type">
          <match extended="true">
            (?&lt;![^\s])
            (\:ABOUT|DOES>|FORGET>|CREATE|\:NONAME)
            (?![^\s])
          </match>
        </context>

        <!--        <<DEBUG        ..... DEBUG>> -->
        <context id="comment-debug" extend-parent="false" style-ref="debugs">
          <start>(?&lt;![^\s])(&lt;&lt;DEBUG)(?![^\s])</start>
          <end>(?&lt;![^\s])(DEBUG>>)(?![^\s])</end>
          <include>
            <context ref="keywords"/>
            <context ref="keywords2"/>
            <context ref="keywords3"/>
            <context ref="number"/>
            <context ref="comment"/>
            <context ref="string" />
            <context ref="string2" />
            <context ref="string3" />
            <context ref="errorstring" />
            <context ref="locals" />
            <context ref="definers" />
            <context ref="comment-multiline"/>
          </include>
        </context>

        <!--        [ ... ] is displayed as a preprocessor structure        -->
        <context id="preproc4" extend-parent="true" style-ref="preprocessor">
          <start>(?&lt;![^\s])(\[)(?![^\s])</start>
          <end>(?&lt;![^\s])(\])(?![^\s])</end>
          <include>
            <context ref="keywords"/>
            <context ref="number"/>
            <context ref="comment"/>
            <context ref="comment-multiline"/>
          </include>
        </context>
      </include>
    </context>
  </definitions>
</language>