Mercurial Repositories > eric / file comparison
comparison: eric6/ThirdParty/Pygments/pygments/lexers/forth.py
eric6/ThirdParty/Pygments/pygments/lexers/forth.py
- changeset 8258
- 82b608e352ec
- parent 8257
- 28146736bbfc
- child 8259
- 2bbec88047dd
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| 8257:28146736bbfc | 8258:82b608e352ec |
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| 1 # -*- coding: utf-8 -*- | |
| 2 """ | |
| 3 pygments.lexers.forth | |
| 4 ~~~~~~~~~~~~~~~~~~~~~ | |
| 5 | |
| 6 Lexer for the Forth language. | |
| 7 | |
| 8 :copyright: Copyright 2006-2021 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, Keyword, Name, String, Number | |
| 16 | |
| 17 | |
| 18 __all__ = ['ForthLexer'] | |
| 19 | |
| 20 | |
| 21 class ForthLexer(RegexLexer): | |
| 22 """ | |
| 23 Lexer for Forth files. | |
| 24 | |
| 25 .. versionadded:: 2.2 | |
| 26 """ | |
| 27 name = 'Forth' | |
| 28 aliases = ['forth'] | |
| 29 filenames = ['*.frt', '*.fs'] | |
| 30 mimetypes = ['application/x-forth'] | |
| 31 | |
| 32 flags = re.IGNORECASE | re.MULTILINE | |
| 33 | |
| 34 tokens = { | |
| 35 'root': [ | |
| 36 (r'\s+', Text), | |
| 37 # All comment types | |
| 38 (r'\\.*?\n', Comment.Single), | |
| 39 (r'\([\s].*?\)', Comment.Single), | |
| 40 # defining words. The next word is a new command name | |
| 41 (r'(:|variable|constant|value|buffer:)(\s+)', | |
| 42 bygroups(Keyword.Namespace, Text), 'worddef'), | |
| 43 # strings are rather simple | |
| 44 (r'([.sc]")(\s+?)', bygroups(String, Text), 'stringdef'), | |
| 45 # keywords from the various wordsets | |
| 46 # *** Wordset BLOCK | |
| 47 (r'(blk|block|buffer|evaluate|flush|load|save-buffers|update|' | |
| 48 # *** Wordset BLOCK-EXT | |
| 49 r'empty-buffers|list|refill|scr|thru|' | |
| 50 # *** Wordset CORE | |
| 51 r'\#s|\*\/mod|\+loop|\/mod|0<|0=|1\+|1-|2!|' | |
| 52 r'2\*|2\/|2@|2drop|2dup|2over|2swap|>body|' | |
| 53 r'>in|>number|>r|\?dup|abort|abort\"|abs|' | |
| 54 r'accept|align|aligned|allot|and|base|begin|' | |
| 55 r'bl|c!|c,|c@|cell\+|cells|char|char\+|' | |
| 56 r'chars|constant|count|cr|create|decimal|' | |
| 57 r'depth|do|does>|drop|dup|else|emit|environment\?|' | |
| 58 r'evaluate|execute|exit|fill|find|fm\/mod|' | |
| 59 r'here|hold|i|if|immediate|invert|j|key|' | |
| 60 r'leave|literal|loop|lshift|m\*|max|min|' | |
| 61 r'mod|move|negate|or|over|postpone|quit|' | |
| 62 r'r>|r@|recurse|repeat|rot|rshift|s\"|s>d|' | |
| 63 r'sign|sm\/rem|source|space|spaces|state|swap|' | |
| 64 r'then|type|u\.|u\<|um\*|um\/mod|unloop|until|' | |
| 65 r'variable|while|word|xor|\[char\]|\[\'\]|' | |
| 66 r'@|!|\#|<\#|\#>|:|;|\+|-|\*|\/|,|<|>|\|1\+|1-|\.|' | |
| 67 # *** Wordset CORE-EXT | |
| 68 r'\.r|0<>|' | |
| 69 r'0>|2>r|2r>|2r@|:noname|\?do|again|c\"|' | |
| 70 r'case|compile,|endcase|endof|erase|false|' | |
| 71 r'hex|marker|nip|of|pad|parse|pick|refill|' | |
| 72 r'restore-input|roll|save-input|source-id|to|' | |
| 73 r'true|tuck|u\.r|u>|unused|value|within|' | |
| 74 r'\[compile\]|' | |
| 75 # *** Wordset CORE-EXT-obsolescent | |
| 76 r'\#tib|convert|expect|query|span|' | |
| 77 r'tib|' | |
| 78 # *** Wordset DOUBLE | |
| 79 r'2constant|2literal|2variable|d\+|d-|' | |
| 80 r'd\.|d\.r|d0<|d0=|d2\*|d2\/|d<|d=|d>s|' | |
| 81 r'dabs|dmax|dmin|dnegate|m\*\/|m\+|' | |
| 82 # *** Wordset DOUBLE-EXT | |
| 83 r'2rot|du<|' | |
| 84 # *** Wordset EXCEPTION | |
| 85 r'catch|throw|' | |
| 86 # *** Wordset EXCEPTION-EXT | |
| 87 r'abort|abort\"|' | |
| 88 # *** Wordset FACILITY | |
| 89 r'at-xy|key\?|page|' | |
| 90 # *** Wordset FACILITY-EXT | |
| 91 r'ekey|ekey>char|ekey\?|emit\?|ms|time&date|' | |
| 92 # *** Wordset FILE | |
| 93 r'BIN|CLOSE-FILE|CREATE-FILE|DELETE-FILE|FILE-POSITION|' | |
| 94 r'FILE-SIZE|INCLUDE-FILE|INCLUDED|OPEN-FILE|R\/O|' | |
| 95 r'R\/W|READ-FILE|READ-LINE|REPOSITION-FILE|RESIZE-FILE|' | |
| 96 r'S\"|SOURCE-ID|W/O|WRITE-FILE|WRITE-LINE|' | |
| 97 # *** Wordset FILE-EXT | |
| 98 r'FILE-STATUS|FLUSH-FILE|REFILL|RENAME-FILE|' | |
| 99 # *** Wordset FLOAT | |
| 100 r'>float|d>f|' | |
| 101 r'f!|f\*|f\+|f-|f\/|f0<|f0=|f<|f>d|f@|' | |
| 102 r'falign|faligned|fconstant|fdepth|fdrop|fdup|' | |
| 103 r'fliteral|float\+|floats|floor|fmax|fmin|' | |
| 104 r'fnegate|fover|frot|fround|fswap|fvariable|' | |
| 105 r'represent|' | |
| 106 # *** Wordset FLOAT-EXT | |
| 107 r'df!|df@|dfalign|dfaligned|dfloat\+|' | |
| 108 r'dfloats|f\*\*|f\.|fabs|facos|facosh|falog|' | |
| 109 r'fasin|fasinh|fatan|fatan2|fatanh|fcos|fcosh|' | |
| 110 r'fe\.|fexp|fexpm1|fln|flnp1|flog|fs\.|fsin|' | |
| 111 r'fsincos|fsinh|fsqrt|ftan|ftanh|f~|precision|' | |
| 112 r'set-precision|sf!|sf@|sfalign|sfaligned|sfloat\+|' | |
| 113 r'sfloats|' | |
| 114 # *** Wordset LOCAL | |
| 115 r'\(local\)|to|' | |
| 116 # *** Wordset LOCAL-EXT | |
| 117 r'locals\||' | |
| 118 # *** Wordset MEMORY | |
| 119 r'allocate|free|resize|' | |
| 120 # *** Wordset SEARCH | |
| 121 r'definitions|find|forth-wordlist|get-current|' | |
| 122 r'get-order|search-wordlist|set-current|set-order|' | |
| 123 r'wordlist|' | |
| 124 # *** Wordset SEARCH-EXT | |
| 125 r'also|forth|only|order|previous|' | |
| 126 # *** Wordset STRING | |
| 127 r'-trailing|\/string|blank|cmove|cmove>|compare|' | |
| 128 r'search|sliteral|' | |
| 129 # *** Wordset TOOLS | |
| 130 r'.s|dump|see|words|' | |
| 131 # *** Wordset TOOLS-EXT | |
| 132 r';code|' | |
| 133 r'ahead|assembler|bye|code|cs-pick|cs-roll|' | |
| 134 r'editor|state|\[else\]|\[if\]|\[then\]|' | |
| 135 # *** Wordset TOOLS-EXT-obsolescent | |
| 136 r'forget|' | |
| 137 # Forth 2012 | |
| 138 r'defer|defer@|defer!|action-of|begin-structure|field:|buffer:|' | |
| 139 r'parse-name|buffer:|traverse-wordlist|n>r|nr>|2value|fvalue|' | |
| 140 r'name>interpret|name>compile|name>string|' | |
| 141 r'cfield:|end-structure)(?!\S)', Keyword), | |
| 142 | |
| 143 # Numbers | |
| 144 (r'(\$[0-9A-F]+)', Number.Hex), | |
| 145 (r'(\#|%|&|\-|\+)?[0-9]+', Number.Integer), | |
| 146 (r'(\#|%|&|\-|\+)?[0-9.]+', Keyword.Type), | |
| 147 # amforth specific | |
| 148 (r'(@i|!i|@e|!e|pause|noop|turnkey|sleep|' | |
| 149 r'itype|icompare|sp@|sp!|rp@|rp!|up@|up!|' | |
| 150 r'>a|a>|a@|a!|a@+|a@-|>b|b>|b@|b!|b@+|b@-|' | |
| 151 r'find-name|1ms|' | |
| 152 r'sp0|rp0|\(evaluate\)|int-trap|int!)(?!\S)', | |
| 153 Name.Constant), | |
| 154 # a proposal | |
| 155 (r'(do-recognizer|r:fail|recognizer:|get-recognizers|' | |
| 156 r'set-recognizers|r:float|r>comp|r>int|r>post|' | |
| 157 r'r:name|r:word|r:dnum|r:num|recognizer|forth-recognizer|' | |
| 158 r'rec:num|rec:float|rec:word)(?!\S)', Name.Decorator), | |
| 159 # defining words. The next word is a new command name | |
| 160 (r'(Evalue|Rvalue|Uvalue|Edefer|Rdefer|Udefer)(\s+)', | |
| 161 bygroups(Keyword.Namespace, Text), 'worddef'), | |
| 162 | |
| 163 (r'\S+', Name.Function), # Anything else is executed | |
| 164 | |
| 165 ], | |
| 166 'worddef': [ | |
| 167 (r'\S+', Name.Class, '#pop'), | |
| 168 ], | |
| 169 'stringdef': [ | |
| 170 (r'[^"]+', String, '#pop'), | |
| 171 ], | |
| 172 } | |
| 173 | |
| 174 def analyse_text(text): | |
| 175 """Forth uses : COMMAND ; quite a lot in a single line, so we're trying | |
| 176 to find that.""" | |
| 177 if re.search('\n:[^\n]+;\n', text): | |
| 178 return 0.1 |
