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+#------------------------------------------------------------------------------
+# $File: c-lang,v 1.32 2023/06/16 19:57:19 christos Exp $
+# c-lang: file(1) magic for C and related languages programs
+#
+# The strength is to beat standard HTML
+
+# BCPL
+0 search/8192 "libhdr" BCPL source text
+!:mime text/x-bcpl
+0 search/8192 "LIBHDR" BCPL source text
+!:mime text/x-bcpl
+
+# C
+# Check for class if include is found, otherwise class is beaten by include because of lowered strength
+0 search/8192 #include
+>0 regex \^#include C
+>>0 regex \^class[[:space:]]+
+>>>&0 regex \\{[\.\*]\\}(;)?$ \b++
+>>&0 clear x source text
+!:strength + 15
+!:mime text/x-c
+0 search/8192 pragma
+>0 regex \^#[[:space:]]*pragma C source text
+!:mime text/x-c
+0 search/8192 endif
+>0 regex \^#[[:space:]]*(if\|ifn)def
+>>&0 regex \^#[[:space:]]*endif$ C source text
+!:mime text/x-c
+0 search/8192 define
+>0 regex \^#[[:space:]]*(if\|ifn)def
+>>&0 regex \^#[[:space:]]*define C source text
+!:mime text/x-c
+0 search/8192 char
+>0 regex \^[[:space:]]*char(\ \\*|\\*)(.+)(=.*)?;[[:space:]]*$ C source text
+!:mime text/x-c
+0 search/8192 double
+>0 regex \^[[:space:]]*double(\ \\*|\\*)(.+)(=.*)?;[[:space:]]*$ C source text
+!:mime text/x-c
+0 search/8192 extern
+>0 regex \^[[:space:]]*extern[[:space:]]+ C source text
+!:mime text/x-c
+0 search/8192 float
+>0 regex \^[[:space:]]*float(\ \\*|\\*)(.+)(=.*)?;[[:space:]]*$ C source text
+!:mime text/x-c
+0 search/8192 struct
+>0 regex \^struct[[:space:]]+ C source text
+!:mime text/x-c
+0 search/8192 union
+>0 regex \^union[[:space:]]+ C source text
+!:mime text/x-c
+0 search/8192 main(
+>&0 search/64 String Java source text
+!:mime text/x-java
+>&0 default x
+>>&0 regex \\)[[:space:]]*\\{ C source text
+!:mime text/x-c
+
+# C++
+# The strength of these rules is increased so they beat the C rules above
+0 search/8192 namespace
+>0 regex \^namespace[[:space:]]+[_[:alpha:]]{1,30}[[:space:]]*\\{ C++ source text
+!:strength + 30
+!:mime text/x-c++
+# using namespace [namespace] or using std::[lib]
+0 search/8192 using
+>0 regex \^using[[:space:]]+(namespace\ )?std(::)?[[:alpha:]]*[[:space:]]*; C++ source text
+!:strength + 30
+!:mime text/x-c++
+0 search/8192 template
+>0 regex \^[[:space:]]*template[[:space:]]*<.*>[[:space:]]*$ C++ source text
+!:strength + 30
+!:mime text/x-c++
+0 search/8192 virtual
+>0 regex \^[[:space:]]*virtual[[:space:]]+.*[};][[:space:]]*$ C++ source text
+!:strength + 30
+!:mime text/x-c++
+# But class alone is reduced to avoid beating php (Jens Schleusener)
+0 search/8192 class
+>0 regex \^[[:space:]]*class[[:space:]]+[[:digit:][:alpha:]:_]+[[:space:]]*\\{(.*[\n]*)*\\}(;)?$ C++ source text
+!:strength + 13
+!:mime text/x-c++
+0 search/8192 public
+>0 regex \^[[:space:]]*public: C++ source text
+!:strength + 30
+!:mime text/x-c++
+0 search/8192 private
+>0 regex \^[[:space:]]*private: C++ source text
+!:strength + 30
+!:mime text/x-c++
+0 search/8192 protected
+>0 regex \^[[:space:]]*protected: C++ source text
+!:strength + 30
+!:mime text/x-c++
+
+# Objective-C
+0 search/8192 #import
+>0 regex \^#import[[:space:]]+["<] Objective-C source text
+!:strength + 25
+!:mime text/x-objective-c
+
+# From: Mikhail Teterin <mi@aldan.algebra.com>
+0 string cscope cscope reference data
+>7 string x version %.2s
+# We skip the path here, because it is often long (so file will
+# truncate it) and mostly redundant.
+# The inverted index functionality was added some time between
+# versions 11 and 15, so look for -q if version is above 14:
+>7 string >14
+>>10 search/100 \ -q\ with inverted index
+>10 search/100 \ -c\ text (non-compressed)