/usr/share/pyshared/pygments/lexers/hdl.py is in python-pygments 1.4+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | # -*- coding: utf-8 -*-
"""
pygments.lexers.hdl
~~~~~~~~~~~~~~~~~~~
Lexers for hardware descriptor languages.
:copyright: Copyright 2010 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import RegexLexer, include, bygroups
from pygments.token import \
Text, Comment, Operator, Keyword, Name, String, Number, Punctuation, \
Error
__all__ = ['VerilogLexer']
class VerilogLexer(RegexLexer):
"""
For verilog source code with preprocessor directives.
*New in Pygments 1.4.*
"""
name = 'verilog'
aliases = ['v']
filenames = ['*.v', '*.sv']
mimetypes = ['text/x-verilog']
#: optional Comment or Whitespace
_ws = r'(?:\s|//.*?\n|/[*].*?[*]/)+'
tokens = {
'root': [
(r'^\s*`define', Comment.Preproc, 'macro'),
(r'\n', Text),
(r'\s+', Text),
(r'\\\n', Text), # line continuation
(r'/(\\\n)?/(\n|(.|\n)*?[^\\]\n)', Comment.Single),
(r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
(r'[{}#@]', Punctuation),
(r'L?"', String, 'string'),
(r"L?'(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])'", String.Char),
(r'(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[lL]?', Number.Float),
(r'(\d+\.\d*|\.\d+|\d+[fF])[fF]?', Number.Float),
(r'([0-9]+)|(\'h)[0-9a-fA-F]+', Number.Hex),
(r'([0-9]+)|(\'b)[0-1]+', Number.Hex), # should be binary
(r'([0-9]+)|(\'d)[0-9]+', Number.Integer),
(r'([0-9]+)|(\'o)[0-7]+', Number.Oct),
(r'\'[01xz]', Number),
(r'\d+[Ll]?', Number.Integer),
(r'\*/', Error),
(r'[~!%^&*+=|?:<>/-]', Operator),
(r'[()\[\],.;\']', Punctuation),
(r'`[a-zA-Z_][a-zA-Z0-9_]*', Name.Constant),
(r'^\s*(package)(\s+)', bygroups(Keyword.Namespace, Text)),
(r'^\s*(import)(\s+)', bygroups(Keyword.Namespace, Text), 'import'),
(r'(always|always_comb|always_ff|always_latch|and|assign|automatic|'
r'begin|break|buf|bufif0|bufif1|case|casex|casez|cmos|const|'
r'continue|deassign|default|defparam|disable|do|edge|else|end|endcase|'
r'endfunction|endgenerate|endmodule|endpackage|endprimitive|endspecify|'
r'endtable|endtask|enum|event|final|for|force|forever|fork|function|'
r'generate|genvar|highz0|highz1|if|initial|inout|input|'
r'integer|join|large|localparam|macromodule|medium|module|'
r'nand|negedge|nmos|nor|not|notif0|notif1|or|output|packed|'
r'parameter|pmos|posedge|primitive|pull0|pull1|pulldown|pullup|rcmos|'
r'ref|release|repeat|return|rnmos|rpmos|rtran|rtranif0|'
r'rtranif1|scalared|signed|small|specify|specparam|strength|'
r'string|strong0|strong1|struct|table|task|'
r'tran|tranif0|tranif1|type|typedef|'
r'unsigned|var|vectored|void|wait|weak0|weak1|while|'
r'xnor|xor)\b', Keyword),
(r'(`accelerate|`autoexpand_vectornets|`celldefine|`default_nettype|'
r'`else|`elsif|`endcelldefine|`endif|`endprotect|`endprotected|'
r'`expand_vectornets|`ifdef|`ifndef|`include|`noaccelerate|`noexpand_vectornets|'
r'`noremove_gatenames|`noremove_netnames|`nounconnected_drive|'
r'`protect|`protected|`remove_gatenames|`remove_netnames|`resetall|'
r'`timescale|`unconnected_drive|`undef)\b', Comment.Preproc),
(r'(\$bits|\$bitstoreal|\$bitstoshortreal|\$countdrivers|\$display|\$fclose|'
r'\$fdisplay|\$finish|\$floor|\$fmonitor|\$fopen|\$fstrobe|\$fwrite|'
r'\$getpattern|\$history|\$incsave|\$input|\$itor|\$key|\$list|\$log|'
r'\$monitor|\$monitoroff|\$monitoron|\$nokey|\$nolog|\$printtimescale|'
r'\$random|\$readmemb|\$readmemh|\$realtime|\$realtobits|\$reset|\$reset_count|'
r'\$reset_value|\$restart|\$rtoi|\$save|\$scale|\$scope|\$shortrealtobits|'
r'\$showscopes|\$showvariables|\$showvars|\$sreadmemb|\$sreadmemh|'
r'\$stime|\$stop|\$strobe|\$time|\$timeformat|\$write)\b', Name.Builtin),
(r'(class)(\s+)', bygroups(Keyword, Text), 'classname'),
(r'(byte|shortint|int|longint|interger|time|'
r'bit|logic|reg|'
r'supply0|supply1|tri|triand|trior|tri0|tri1|trireg|uwire|wire|wand|wor'
r'shortreal|real|realtime)\b', Keyword.Type),
('[a-zA-Z_][a-zA-Z0-9_]*:(?!:)', Name.Label),
('[a-zA-Z_][a-zA-Z0-9_]*', Name),
],
'classname': [
(r'[a-zA-Z_][a-zA-Z0-9_]*', Name.Class, '#pop'),
],
'string': [
(r'"', String, '#pop'),
(r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|[0-7]{1,3})', String.Escape),
(r'[^\\"\n]+', String), # all other characters
(r'\\\n', String), # line continuation
(r'\\', String), # stray backslash
],
'macro': [
(r'[^/\n]+', Comment.Preproc),
(r'/[*](.|\n)*?[*]/', Comment.Multiline),
(r'//.*?\n', Comment.Single, '#pop'),
(r'/', Comment.Preproc),
(r'(?<=\\)\n', Comment.Preproc),
(r'\n', Comment.Preproc, '#pop'),
],
'import': [
(r'[a-zA-Z0-9_:]+\*?', Name.Namespace, '#pop')
]
}
def get_tokens_unprocessed(self, text):
for index, token, value in \
RegexLexer.get_tokens_unprocessed(self, text):
# Convention: mark all upper case names as constants
if token is Name:
if value.isupper():
token = Name.Constant
yield index, token, value
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