BugsLexer, JagsLexer, StanLexer: fixed filenames, added analyse_text functions

3 files changed, 23 insertions, 5 deletions

diff --git a/pygments/lexers/_mapping.py b/pygments/lexers/_mapping.py
index 7329f6c8..c8a224f9 100644
--- a/pygments/lexers/_mapping.py
+++ b/pygments/lexers/_mapping.py
@@ -43,7 +43,7 @@ LEXERS = {
     'BooLexer': ('pygments.lexers.dotnet', 'Boo', ('boo',), ('*.boo',), ('text/x-boo',)),
     'BrainfuckLexer': ('pygments.lexers.other', 'Brainfuck', ('brainfuck', 'bf'), ('*.bf', '*.b'), ('application/x-brainfuck',)),
     'BroLexer': ('pygments.lexers.other', 'Bro', ('bro',), ('*.bro',), ()),
-    'BugsLexer': ('pygments.lexers.math', 'BUGS', ('bugs', 'winbugs', 'openbugs'), ('*.bugs',), ()),
+    'BugsLexer': ('pygments.lexers.math', 'BUGS', ('bugs', 'winbugs', 'openbugs'), ('*.bug',), ()),
     'CLexer': ('pygments.lexers.compiled', 'C', ('c',), ('*.c', '*.h', '*.idc'), ('text/x-chdr', 'text/x-csrc')),
     'CMakeLexer': ('pygments.lexers.text', 'CMake', ('cmake',), ('*.cmake', 'CMakeLists.txt'), ('text/x-cmake',)),
     'CObjdumpLexer': ('pygments.lexers.asm', 'c-objdump', ('c-objdump',), ('*.c-objdump',), ('text/x-c-objdump',)),
@@ -126,7 +126,7 @@ LEXERS = {
     'IokeLexer': ('pygments.lexers.jvm', 'Ioke', ('ioke', 'ik'), ('*.ik',), ('text/x-iokesrc',)),
     'IrcLogsLexer': ('pygments.lexers.text', 'IRC logs', ('irc',), ('*.weechatlog',), ('text/x-irclog',)),
     'JadeLexer': ('pygments.lexers.web', 'Jade', ('jade', 'JADE'), ('*.jade',), ('text/x-jade',)),
-    'JagsLexer': ('pygments.lexers.math', 'JAGS', ('jags',), ('*.jags',), ()),
+    'JagsLexer': ('pygments.lexers.math', 'JAGS', ('jags',), ('*.bug', '*.jags'), ()),
     'JavaLexer': ('pygments.lexers.jvm', 'Java', ('java',), ('*.java',), ('text/x-java',)),
     'JavascriptDjangoLexer': ('pygments.lexers.templates', 'JavaScript+Django/Jinja', ('js+django', 'javascript+django', 'js+jinja', 'javascript+jinja'), (), ('application/x-javascript+django', 'application/x-javascript+jinja', 'text/x-javascript+django', 'text/x-javascript+jinja', 'text/javascript+django', 'text/javascript+jinja')),
     'JavascriptErbLexer': ('pygments.lexers.templates', 'JavaScript+Ruby', ('js+erb', 'javascript+erb', 'js+ruby', 'javascript+ruby'), (), ('application/x-javascript+ruby', 'text/x-javascript+ruby', 'text/javascript+ruby')),
@@ -225,7 +225,7 @@ LEXERS = {
     'RubyConsoleLexer': ('pygments.lexers.agile', 'Ruby irb session', ('rbcon', 'irb'), (), ('text/x-ruby-shellsession',)),
     'RubyLexer': ('pygments.lexers.agile', 'Ruby', ('rb', 'ruby', 'duby'), ('*.rb', '*.rbw', 'Rakefile', '*.rake', '*.gemspec', '*.rbx', '*.duby'), ('text/x-ruby', 'application/x-ruby')),
     'RustLexer': ('pygments.lexers.compiled', 'Rust', ('rust',), ('*.rs', '*.rc'), ('text/x-rustsrc',)),
-    'SLexer': ('pygments.lexers.math', 'S', ('splus', 's', 'r'), ('*.S', '*.R'), ('text/S-plus', 'text/S', 'text/R')),
+    'SLexer': ('pygments.lexers.math', 'S', ('splus', 's', 'r'), ('*.S', '*.R', '.Rhistory', '.Rprofile'), ('text/S-plus', 'text/S', 'text/x-r-source', 'text/x-r', 'text/x-R', 'text/x-r-history', 'text/x-r-profile')),
     'SMLLexer': ('pygments.lexers.functional', 'Standard ML', ('sml',), ('*.sml', '*.sig', '*.fun'), ('text/x-standardml', 'application/x-standardml')),
     'SassLexer': ('pygments.lexers.web', 'Sass', ('sass', 'SASS'), ('*.sass',), ('text/x-sass',)),
     'ScalaLexer': ('pygments.lexers.jvm', 'Scala', ('scala',), ('*.scala',), ('text/x-scala',)),
diff --git a/pygments/lexers/math.py b/pygments/lexers/math.py
index dd22e66e..658b346c 100644
--- a/pygments/lexers/math.py
+++ b/pygments/lexers/math.py
@@ -1096,7 +1096,7 @@ class BugsLexer(RegexLexer):
 
     name = 'BUGS'
     aliases = ['bugs', 'winbugs', 'openbugs']
-    filenames = ['*.bugs']
+    filenames = ['*.bug']
 
     _FUNCTIONS = [
         # Scalar functions
@@ -1181,6 +1181,11 @@ class BugsLexer(RegexLexer):
             ]
         }
 
+    def analyse_text(text):
+        if re.match(r"^\s*model\s*{", text):
+            return 0.7
+        else:
+            return 0
 
 class JagsLexer(RegexLexer):
     """
@@ -1191,7 +1196,7 @@ class JagsLexer(RegexLexer):
 
     name = 'JAGS'
     aliases = ['jags']
-    filenames = ['*.jags']
+    filenames = ['*.bug', '*.jags']
 
     ## JAGS
     _FUNCTIONS = [
@@ -1273,6 +1278,16 @@ class JagsLexer(RegexLexer):
             ]
         }
 
+    def analyse_text(text):
+        if re.search(r'^\s*model\s*\{', text, re.M):
+            if re.search(r'^\s*data\s*\{', text, re.M):
+                return 0.9
+            elif re.search(r'^\s*var', text, re.M):
+                return 0.9
+            else:
+                return 0.3
+        else:
+            return 0
 
 class StanLexer(RegexLexer):
     """
@@ -1387,3 +1402,6 @@ class StanLexer(RegexLexer):
             (r'}', Punctuation, '#pop'),
             ]
         }
+
+    def analyse_text(text):
+        return re.match('^\s*\\parameters\s*\{', text)
diff --git a/tests/examplefiles/example.bugs b/tests/examplefiles/example.bug
index b5b2fe7f..b5b2fe7f 100644
--- a/tests/examplefiles/example.bugs
+++ b/tests/examplefiles/example.bug