<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE syntax SYSTEM "syntax.dtd">
<syntax>
<head>
<name>Logtalk</name>
<charsintokens>
<![CDATA[_0987654321abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ{}-]]>
</charsintokens>
<charsdelimitingtokens><![CDATA[ []()]]></charsdelimitingtokens>
</head>
<states>
<default id="Base" color="#000000" inverted-color="#ffffff">
<keywords id="Variables" color="#848484" useforautocomplete="no">
<regex>\b([A-Z_][A-Za-z0-9_]*)</regex>
</keywords>
<keywords id="Directives" color="#881280" useforautocomplete="yes">
<regex>:-\s(object)\(</regex>
<regex>:-\s(protocol)\(</regex>
<regex>:-\s(category)\(</regex>
<regex>:-\s(end_(object|protocol|category))\.</regex>
<regex>:-\s(alias)\(</regex>
<regex>:-\s(e(ncoding|xport))\(</regex>
<regex>:-\s(initialization)\(</regex>
<regex>:-\s(info)\(</regex>
<regex>:-\s(mod(e|ule))\(</regex>
<regex>:-\s(dynamic)\(</regex>
<regex>:-\s(dynamic)\.</regex>
<regex>:-\s(discontiguous)\(</regex>
<regex>:-\s(p(ublic|r(otected|ivate)))\(</regex>
<regex>:-\s(m(eta_predicate|ultifile))\(</regex>
<regex>:-\s(op)\(</regex>
<regex>:-\s(calls)\(</regex>
<regex>:-\s(use(s|_module))\(</regex>
<regex>:-\s(synchronized)\(</regex>
<regex>:-\s(synchronized)\.</regex>
<regex>:-\s(threaded)\.</regex>
</keywords>
<keywords id="Entity Relations" color="#881280" useforautocomplete="yes">
<regex>\b(specializes)\(</regex>
<regex>\b(extends)\(</regex>
<regex>\b(i(mp(orts|lements)|nstantiates))\(</regex>
</keywords>
<keywords id="Message Sending Operators" color="#0000ff" useforautocomplete="no">
<regex>(::)</regex>
<regex>(\^\^)</regex>
</keywords>
<keywords id="Category predicate direct call" color="#0000ff" useforautocomplete="no">
<regex>(:)</regex>
</keywords>
<keywords id="External Call" color="#0000ff" useforautocomplete="no">
<regex>(\{)</regex>
<regex>(\})</regex>
</keywords>
<keywords id="Control Constructs" color="#1A1AA6" useforautocomplete="yes">
<regex>\b(ca(ll|tch))\(</regex>
<regex>\b(throw)\(</regex>
<regex>\b(true)[^[(A-Za-z_]]</regex>
<regex>\b(fail)[^[(A-Za-z_]]</regex>
<regex>\s(-->)\s</regex>
<regex>\s(->)\s</regex>
<regex>(!)</regex>
<regex>(;)</regex>
</keywords>
<keywords id="Built-in Methods" color="#1A1AA6" useforautocomplete="yes">
<regex>\b(parameter)\(</regex>
<regex>\b(se(lf|nder))\(</regex>
<regex>\b(this)\(</regex>
<regex>\b(current_predicate)\(</regex>
<regex>\b(predicate_property)\(</regex>
<regex>\b(a(bolish|ssert(a|z)))\(</regex>
<regex>\b(clause)\(</regex>
<regex>\b(retract(all)?)\(</regex>
<regex>\b((bag|set)of)\(</regex>
<regex>\b(f(ind|or)all)\(</regex>
<regex>\b(before)\(</regex>
<regex>\b(after)\(</regex>
<regex>\b(expand_term)\(</regex>
<regex>\b(term_expansion)\(</regex>
<regex>\b(phrase)\(</regex>
</keywords>
<keywords id="Built-in Predicates" color="#1A1AA6" useforautocomplete="yes">
<regex>\b(current_(object|protocol|category|event))\(</regex>
<regex>\b(create_(object|protocol|category))\(</regex>
<regex>\b((object|protocol|category)_property)\(</regex>
<regex>\b(abolish_(object|protocol|category|events))\(</regex>
<regex>\b(extends_(object|protocol))\(</regex>
<regex>\b(impl(ements_protocol|orts_category))\(</regex>
<regex>\b((instantiat|specializ)es_class)\(</regex>
<regex>\b(define_events)\(</regex>
<regex>\b((se|curren)t_logtalk_flag)\(</regex>
<regex>\b(logtalk_(compile|l(ibrary_path|oad)))\(</regex>
<regex>\b(forall)\(</regex>
<!-- <regex>\b(retractall)\(</regex> -->
<regex>\b(threaded(_(call|once|ignore|exit|peek|wait|notify))?)\(</regex>
</keywords>
<keywords id="Other Built-in Predicates" color="#1A1AA6" useforautocomplete="yes">
<!-- Term unification -->
<regex>\s(=)\s</regex>
<regex>\s(\\=)\s</regex>
<regex>\b(unify_with_occurs_check)\(</regex>
<!-- Term testing -->
<regex>\b(atom(ic)?)\(</regex>
<regex>\b(integer)\(</regex>
<regex>\b(float)\(</regex>
<regex>\b(compound)\(</regex>
<regex>\b((non)?var)\(</regex>
<regex>\b(number)\(</regex>
<!-- Term comparison -->
<regex>(==)</regex>
<regex>(\\==)</regex>
<regex>(@<)</regex>
<regex>(@=<)</regex>
<regex>(@>=)</regex>
<regex>(@>)</regex>
<!-- Term creation and decomposition -->
<regex>\b(functor)\(</regex>
<regex>\b(arg)\(</regex>
<regex>(=\.\.)</regex>
<regex>\b(copy_term)\(</regex>
<!-- Arithemtic evaluation -->
<regex>\s(is)\s</regex>
<!-- Arithemtic comparison -->
<regex>(=:=)</regex>
<regex>(=\\=)</regex>
<regex>(<)</regex>
<regex>(=<)</regex>
<regex>(>)</regex>
<regex>(>=)</regex>
<!-- Evaluable functors -->
<regex>(\+)</regex>
<regex>(?<!:)(-)</regex>
<regex>(\*)</regex>
<regex>(//)</regex>
<regex>(/)</regex>
<regex>\s(rem)\s</regex>
<regex>\s(mod)\s</regex>
<regex>\b(rem)\(</regex>
<regex>\b(mod)\(</regex>
<regex>\b(abs)\(</regex>
<regex>\b(sign)\(</regex>
<regex>\b(float(_(integer|fractional)_part)?)\(</regex>
<regex>\b(floor)\(</regex>
<regex>\b(truncate)\(</regex>
<regex>\b(round)\(</regex>
<regex>\b(ceiling)\(</regex>
<!-- Other arithemtic functors -->
<regex>(\*\*)</regex>
<regex>\b(sin)\(</regex>
<regex>\b(cos)\(</regex>
<regex>\b(atan)\(</regex>
<regex>\b(exp)\(</regex>
<regex>\b(log)\(</regex>
<regex>\b(sqrt)\(</regex>
<!-- Bitwise functors -->
<regex>(>>)</regex>
<regex>(<<)</regex>
<regex>(/\\)</regex>
<regex>(\\/)</regex>
<regex>(\\)</regex>
<!-- Stream selection and control -->
<regex>\b((curren|se)t_(in|out)put)\(</regex>
<regex>\b(open)\(</regex>
<regex>\b(close)\(</regex>
<regex>\b(flush_output)\(</regex>
<regex>\b(stream_property)\(</regex>
<regex>\b(at_end_of_stream)\(</regex>
<regex>\b(set_stream_position)\(</regex>
<regex>\b(flush_output)[^[(A-Za-z_]]</regex>
<regex>\b(at_end_of_stream)[^[(A-Za-z_]]</regex>
<!-- Character input/output -->
<regex>\b((get|p(eek|ut))_c(har|ode))\(</regex>
<regex>\b(nl)\(</regex>
<regex>\b(nl)\b</regex>
<!-- Byte input/output -->
<regex>\b((get|peek|put)_byte)\(</regex>
<!-- Term input/output -->
<regex>\b(read(_term)?)\(</regex>
<regex>\b(write(q)?)\(</regex>
<regex>\b(write_(canonical|term))\(</regex>
<regex>\b((current_)?op)\(</regex>
<regex>\b((current_)?char_conversion)\(</regex>
<!-- Logic and control -->
<regex>(\\\+)</regex>
<regex>\b(once)\(</regex>
<regex>\b(repeat)[^[(A-Za-z_]]</regex>
<!-- Atomic term processing -->
<regex>\b(atom_(length|c(hars|o(ncat|des))))\(</regex>
<regex>\b(sub_atom)\(</regex>
<regex>\b(char_code)\(</regex>
<regex>\b(number_c(har|ode)s)\(</regex>
<!-- Implementation defined hooks functions -->
<regex>\b((se|curren)t_prolog_flag)\(</regex>
<regex>\b(halt)\(</regex>
<regex>\b(halt)[^[(A-Za-z_]]</regex>
</keywords>
<keywords id="Mode Operators" color="#0000ff" useforautocomplete="no">
<regex>(@)(?=(,|[:alpha:]))</regex>
<regex>(\?)(?=(,|[:alpha:]))</regex>
<regex>(\+)(?=(,|[:alpha:]))</regex>
<regex>(-)(?=(,|[:alpha:]))</regex>
</keywords>
<keywords id="Numbers" color="#bf4b18" useforautocomplete="no">
<regex>(?<=[^[A-Za-z_0-9]]|^)(\d+((\.\d+)?([eE]([-+])?\d+)?)?)</regex>
<regex>(?<=[^[A-Za-z_0-9]]|^)(0b[0-1]+)</regex>
<regex>(?<=[^[A-Za-z_0-9]]|^)(0o[0-7]+)</regex>
<regex>(?<=[^[A-Za-z_0-9]]|^)(0x\h+)</regex>
<regex>(?<=[^[A-Za-z_0-9]]|^)(0'.)</regex>
</keywords>
<keywords id="Metapredicate Operators" color="#0000ff" useforautocomplete="no">
<regex>(::)(?=(,|[)]))</regex>
<regex>(\*)(?=(,|[)]))</regex>
</keywords>
<keywords id="Clause operator" color="#000000" useforautocomplete="no">
<regex>(:-)</regex>
</keywords>
</default>
<state id="Strings" color="#881314" useforautocomplete="no">
<begin><regex>(?<!0')"</regex></begin>
<end><regex>"</regex></end>
</state>
<state id="Quoted Atoms" color="#881314" useforautocomplete="no">
<begin><regex>(?<!0)'</regex></begin>
<end><regex>'</regex></end>
</state>
<state id="Comment" color="#236E25" font-style="italic" useforautocomplete="no">
<begin><regex>/\*</regex></begin>
<end><regex>\*/</regex></end>
</state>
<state id="SingleComment" color="#236E25" font-style="italic" useforautocomplete="no">
<begin><regex>(?<!0')%</regex></begin>
<end><regex>[\n\r]</regex></end>
</state>
</states>
</syntax>