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comparison: ThirdParty/Pygments/pygments/lexers/prolog.py
ThirdParty/Pygments/pygments/lexers/prolog.py
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| 1 # -*- coding: utf-8 -*- | |
| 2 """ | |
| 3 pygments.lexers.prolog | |
| 4 ~~~~~~~~~~~~~~~~~~~~~~ | |
| 5 | |
| 6 Lexers for Prolog and Prolog-like languages. | |
| 7 | |
| 8 :copyright: Copyright 2006-2014 by the Pygments team, see AUTHORS. | |
| 9 :license: BSD, see LICENSE for details. | |
| 10 """ | |
| 11 | |
| 12 import re | |
| 13 | |
| 14 from pygments.lexer import RegexLexer, bygroups | |
| 15 from pygments.token import Text, Comment, Operator, Keyword, Name, String, \ | |
| 16 Number, Punctuation | |
| 17 | |
| 18 __all__ = ['PrologLexer', 'LogtalkLexer'] | |
| 19 | |
| 20 | |
| 21 class PrologLexer(RegexLexer): | |
| 22 """ | |
| 23 Lexer for Prolog files. | |
| 24 """ | |
| 25 name = 'Prolog' | |
| 26 aliases = ['prolog'] | |
| 27 filenames = ['*.ecl', '*.prolog', '*.pro', '*.pl'] | |
| 28 mimetypes = ['text/x-prolog'] | |
| 29 | |
| 30 flags = re.UNICODE | re.MULTILINE | |
| 31 | |
| 32 tokens = { | |
| 33 'root': [ | |
| 34 (r'^#.*', Comment.Single), | |
| 35 (r'/\*', Comment.Multiline, 'nested-comment'), | |
| 36 (r'%.*', Comment.Single), | |
| 37 # character literal | |
| 38 (r'0\'.', String.Char), | |
| 39 (r'0b[01]+', Number.Bin), | |
| 40 (r'0o[0-7]+', Number.Oct), | |
| 41 (r'0x[0-9a-fA-F]+', Number.Hex), | |
| 42 # literal with prepended base | |
| 43 (r'\d\d?\'[a-zA-Z0-9]+', Number.Integer), | |
| 44 (r'(\d+\.\d*|\d*\.\d+)([eE][+-]?[0-9]+)?', Number.Float), | |
| 45 (r'\d+', Number.Integer), | |
| 46 (r'[\[\](){}|.,;!]', Punctuation), | |
| 47 (r':-|-->', Punctuation), | |
| 48 (r'"(?:\\x[0-9a-fA-F]+\\|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|' | |
| 49 r'\\[0-7]+\\|\\["\nabcefnrstv]|[^\\"])*"', String.Double), | |
| 50 (r"'(?:''|[^'])*'", String.Atom), # quoted atom | |
| 51 # Needs to not be followed by an atom. | |
| 52 # (r'=(?=\s|[a-zA-Z\[])', Operator), | |
| 53 (r'is\b', Operator), | |
| 54 (r'(<|>|=<|>=|==|=:=|=|/|//|\*|\+|-)(?=\s|[a-zA-Z0-9\[])', | |
| 55 Operator), | |
| 56 (r'(mod|div|not)\b', Operator), | |
| 57 (r'_', Keyword), # The don't-care variable | |
| 58 (r'([a-z]+)(:)', bygroups(Name.Namespace, Punctuation)), | |
| 59 (u'([a-z\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]' | |
| 60 u'[\w$\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]*)' | |
| 61 u'(\\s*)(:-|-->)', | |
| 62 bygroups(Name.Function, Text, Operator)), # function defn | |
| 63 (u'([a-z\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]' | |
| 64 u'[\w$\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]*)' | |
| 65 u'(\\s*)(\\()', | |
| 66 bygroups(Name.Function, Text, Punctuation)), | |
| 67 (u'[a-z\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]' | |
| 68 u'[\w$\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]*', | |
| 69 String.Atom), # atom, characters | |
| 70 # This one includes ! | |
| 71 (u'[#&*+\\-./:<=>?@\\\\^~\u00a1-\u00bf\u2010-\u303f]+', | |
| 72 String.Atom), # atom, graphics | |
| 73 (r'[A-Z_]\w*', Name.Variable), | |
| 74 (u'\\s+|[\u2000-\u200f\ufff0-\ufffe\uffef]', Text), | |
| 75 ], | |
| 76 'nested-comment': [ | |
| 77 (r'\*/', Comment.Multiline, '#pop'), | |
| 78 (r'/\*', Comment.Multiline, '#push'), | |
| 79 (r'[^*/]+', Comment.Multiline), | |
| 80 (r'[*/]', Comment.Multiline), | |
| 81 ], | |
| 82 } | |
| 83 | |
| 84 def analyse_text(text): | |
| 85 return ':-' in text | |
| 86 | |
| 87 | |
| 88 class LogtalkLexer(RegexLexer): | |
| 89 """ | |
| 90 For `Logtalk <http://logtalk.org/>`_ source code. | |
| 91 | |
| 92 .. versionadded:: 0.10 | |
| 93 """ | |
| 94 | |
| 95 name = 'Logtalk' | |
| 96 aliases = ['logtalk'] | |
| 97 filenames = ['*.lgt', '*.logtalk'] | |
| 98 mimetypes = ['text/x-logtalk'] | |
| 99 | |
| 100 tokens = { | |
| 101 'root': [ | |
| 102 # Directives | |
| 103 (r'^\s*:-\s', Punctuation, 'directive'), | |
| 104 # Comments | |
| 105 (r'%.*?\n', Comment), | |
| 106 (r'/\*(.|\n)*?\*/', Comment), | |
| 107 # Whitespace | |
| 108 (r'\n', Text), | |
| 109 (r'\s+', Text), | |
| 110 # Numbers | |
| 111 (r"0'.", Number), | |
| 112 (r'0b[01]+', Number.Bin), | |
| 113 (r'0o[0-7]+', Number.Oct), | |
| 114 (r'0x[0-9a-fA-F]+', Number.Hex), | |
| 115 (r'\d+\.?\d*((e|E)(\+|-)?\d+)?', Number), | |
| 116 # Variables | |
| 117 (r'([A-Z_]\w*)', Name.Variable), | |
| 118 # Event handlers | |
| 119 (r'(after|before)(?=[(])', Keyword), | |
| 120 # Message forwarding handler | |
| 121 (r'forward(?=[(])', Keyword), | |
| 122 # Execution-context methods | |
| 123 (r'(parameter|this|se(lf|nder))(?=[(])', Keyword), | |
| 124 # Reflection | |
| 125 (r'(current_predicate|predicate_property)(?=[(])', Keyword), | |
| 126 # DCGs and term expansion | |
| 127 (r'(expand_(goal|term)|(goal|term)_expansion|phrase)(?=[(])', Keyword), | |
| 128 # Entity | |
| 129 (r'(abolish|c(reate|urrent))_(object|protocol|category)(?=[(])', Keyword), | |
| 130 (r'(object|protocol|category)_property(?=[(])', Keyword), | |
| 131 # Entity relations | |
| 132 (r'co(mplements_object|nforms_to_protocol)(?=[(])', Keyword), | |
| 133 (r'extends_(object|protocol|category)(?=[(])', Keyword), | |
| 134 (r'imp(lements_protocol|orts_category)(?=[(])', Keyword), | |
| 135 (r'(instantiat|specializ)es_class(?=[(])', Keyword), | |
| 136 # Events | |
| 137 (r'(current_event|(abolish|define)_events)(?=[(])', Keyword), | |
| 138 # Flags | |
| 139 (r'(current|set)_logtalk_flag(?=[(])', Keyword), | |
| 140 # Compiling, loading, and library paths | |
| 141 (r'logtalk_(compile|l(ibrary_path|oad|oad_context)|make)(?=[(])', Keyword), | |
| 142 (r'\blogtalk_make\b', Keyword), | |
| 143 # Database | |
| 144 (r'(clause|retract(all)?)(?=[(])', Keyword), | |
| 145 (r'a(bolish|ssert(a|z))(?=[(])', Keyword), | |
| 146 # Control constructs | |
| 147 (r'(ca(ll|tch)|throw)(?=[(])', Keyword), | |
| 148 (r'(fa(il|lse)|true)\b', Keyword), | |
| 149 # All solutions | |
| 150 (r'((bag|set)of|f(ind|or)all)(?=[(])', Keyword), | |
| 151 # Multi-threading meta-predicates | |
| 152 (r'threaded(_(call|once|ignore|exit|peek|wait|notify))?(?=[(])', Keyword), | |
| 153 # Term unification | |
| 154 (r'(subsumes_term|unify_with_occurs_check)(?=[(])', Keyword), | |
| 155 # Term creation and decomposition | |
| 156 (r'(functor|arg|copy_term|numbervars|term_variables)(?=[(])', Keyword), | |
| 157 # Evaluable functors | |
| 158 (r'(rem|m(ax|in|od)|abs|sign)(?=[(])', Keyword), | |
| 159 (r'float(_(integer|fractional)_part)?(?=[(])', Keyword), | |
| 160 (r'(floor|truncate|round|ceiling)(?=[(])', Keyword), | |
| 161 # Other arithmetic functors | |
| 162 (r'(cos|a(cos|sin|tan)|exp|log|s(in|qrt))(?=[(])', Keyword), | |
| 163 # Term testing | |
| 164 (r'(var|atom(ic)?|integer|float|c(allable|ompound)|n(onvar|umber)|' | |
| 165 r'ground|acyclic_term)(?=[(])', Keyword), | |
| 166 # Term comparison | |
| 167 (r'compare(?=[(])', Keyword), | |
| 168 # Stream selection and control | |
| 169 (r'(curren|se)t_(in|out)put(?=[(])', Keyword), | |
| 170 (r'(open|close)(?=[(])', Keyword), | |
| 171 (r'flush_output(?=[(])', Keyword), | |
| 172 (r'(at_end_of_stream|flush_output)\b', Keyword), | |
| 173 (r'(stream_property|at_end_of_stream|set_stream_position)(?=[(])', Keyword), | |
| 174 # Character and byte input/output | |
| 175 (r'(nl|(get|peek|put)_(byte|c(har|ode)))(?=[(])', Keyword), | |
| 176 (r'\bnl\b', Keyword), | |
| 177 # Term input/output | |
| 178 (r'read(_term)?(?=[(])', Keyword), | |
| 179 (r'write(q|_(canonical|term))?(?=[(])', Keyword), | |
| 180 (r'(current_)?op(?=[(])', Keyword), | |
| 181 (r'(current_)?char_conversion(?=[(])', Keyword), | |
| 182 # Atomic term processing | |
| 183 (r'atom_(length|c(hars|o(ncat|des)))(?=[(])', Keyword), | |
| 184 (r'(char_code|sub_atom)(?=[(])', Keyword), | |
| 185 (r'number_c(har|ode)s(?=[(])', Keyword), | |
| 186 # Implementation defined hooks functions | |
| 187 (r'(se|curren)t_prolog_flag(?=[(])', Keyword), | |
| 188 (r'\bhalt\b', Keyword), | |
| 189 (r'halt(?=[(])', Keyword), | |
| 190 # Message sending operators | |
| 191 (r'(::|:|\^\^)', Operator), | |
| 192 # External call | |
| 193 (r'[{}]', Keyword), | |
| 194 # Logic and control | |
| 195 (r'(ignore|once)(?=[(])', Keyword), | |
| 196 (r'\brepeat\b', Keyword), | |
| 197 # Sorting | |
| 198 (r'(key)?sort(?=[(])', Keyword), | |
| 199 # Bitwise functors | |
| 200 (r'(>>|<<|/\\|\\\\|\\)', Operator), | |
| 201 # Predicate aliases | |
| 202 (r'\bas\b', Operator), | |
| 203 # Arithemtic evaluation | |
| 204 (r'\bis\b', Keyword), | |
| 205 # Arithemtic comparison | |
| 206 (r'(=:=|=\\=|<|=<|>=|>)', Operator), | |
| 207 # Term creation and decomposition | |
| 208 (r'=\.\.', Operator), | |
| 209 # Term unification | |
| 210 (r'(=|\\=)', Operator), | |
| 211 # Term comparison | |
| 212 (r'(==|\\==|@=<|@<|@>=|@>)', Operator), | |
| 213 # Evaluable functors | |
| 214 (r'(//|[-+*/])', Operator), | |
| 215 (r'\b(e|pi|mod|rem)\b', Operator), | |
| 216 # Other arithemtic functors | |
| 217 (r'\b\*\*\b', Operator), | |
| 218 # DCG rules | |
| 219 (r'-->', Operator), | |
| 220 # Control constructs | |
| 221 (r'([!;]|->)', Operator), | |
| 222 # Logic and control | |
| 223 (r'\\+', Operator), | |
| 224 # Mode operators | |
| 225 (r'[?@]', Operator), | |
| 226 # Existential quantifier | |
| 227 (r'\^', Operator), | |
| 228 # Strings | |
| 229 (r'"(\\\\|\\"|[^"])*"', String), | |
| 230 # Ponctuation | |
| 231 (r'[()\[\],.|]', Text), | |
| 232 # Atoms | |
| 233 (r"[a-z]\w*", Text), | |
| 234 (r"'", String, 'quoted_atom'), | |
| 235 ], | |
| 236 | |
| 237 'quoted_atom': [ | |
| 238 (r"''", String), | |
| 239 (r"'", String, '#pop'), | |
| 240 (r'\\([\\abfnrtv"\']|(x[a-fA-F0-9]+|[0-7]+)\\)', String.Escape), | |
| 241 (r"[^\\'\n]+", String), | |
| 242 (r'\\', String), | |
| 243 ], | |
| 244 | |
| 245 'directive': [ | |
| 246 # Conditional compilation directives | |
| 247 (r'(el)?if(?=[(])', Keyword, 'root'), | |
| 248 (r'(e(lse|ndif))[.]', Keyword, 'root'), | |
| 249 # Entity directives | |
| 250 (r'(category|object|protocol)(?=[(])', Keyword, 'entityrelations'), | |
| 251 (r'(end_(category|object|protocol))[.]', Keyword, 'root'), | |
| 252 # Predicate scope directives | |
| 253 (r'(public|protected|private)(?=[(])', Keyword, 'root'), | |
| 254 # Other directives | |
| 255 (r'e(n(coding|sure_loaded)|xport)(?=[(])', Keyword, 'root'), | |
| 256 (r'in(clude|itialization|fo)(?=[(])', Keyword, 'root'), | |
| 257 (r'(built_in|dynamic|synchronized|threaded)[.]', Keyword, 'root'), | |
| 258 (r'(alias|d(ynamic|iscontiguous)|m(eta_(non_terminal|predicate)|ode|ultifile)|' | |
| 259 r's(et_(logtalk|prolog)_flag|ynchronized))(?=[(])', Keyword, 'root'), | |
| 260 (r'op(?=[(])', Keyword, 'root'), | |
| 261 (r'(c(alls|oinductive)|module|reexport|use(s|_module))(?=[(])', Keyword, 'root'), | |
| 262 (r'[a-z]\w*(?=[(])', Text, 'root'), | |
| 263 (r'[a-z]\w*[.]', Text, 'root'), | |
| 264 ], | |
| 265 | |
| 266 'entityrelations': [ | |
| 267 (r'(complements|extends|i(nstantiates|mp(lements|orts))|specializes)(?=[(])', Keyword), | |
| 268 # Numbers | |
| 269 (r"0'.", Number), | |
| 270 (r'0b[01]+', Number.Bin), | |
| 271 (r'0o[0-7]+', Number.Oct), | |
| 272 (r'0x[0-9a-fA-F]+', Number.Hex), | |
| 273 (r'\d+\.?\d*((e|E)(\+|-)?\d+)?', Number), | |
| 274 # Variables | |
| 275 (r'([A-Z_]\w*)', Name.Variable), | |
| 276 # Atoms | |
| 277 (r"[a-z]\w*", Text), | |
| 278 (r"'", String, 'quoted_atom'), | |
| 279 # Strings | |
| 280 (r'"(\\\\|\\"|[^"])*"', String), | |
| 281 # End of entity-opening directive | |
| 282 (r'([)]\.)', Text, 'root'), | |
| 283 # Scope operator | |
| 284 (r'(::)', Operator), | |
| 285 # Ponctuation | |
| 286 (r'[()\[\],.|]', Text), | |
| 287 # Comments | |
| 288 (r'%.*?\n', Comment), | |
| 289 (r'/\*(.|\n)*?\*/', Comment), | |
| 290 # Whitespace | |
| 291 (r'\n', Text), | |
| 292 (r'\s+', Text), | |
| 293 ] | |
| 294 } | |
| 295 | |
| 296 def analyse_text(text): | |
| 297 if ':- object(' in text: | |
| 298 return 1.0 | |
| 299 elif ':- protocol(' in text: | |
| 300 return 1.0 | |
| 301 elif ':- category(' in text: | |
| 302 return 1.0 | |
| 303 elif re.search('^:-\s[a-z]', text, re.M): | |
| 304 return 0.9 | |
| 305 else: | |
| 306 return 0.0 |
