# -*- coding: utf-8 -*-
"""
pygments.lexers.hdl
~~~~~~~~~~~~~~~~~~~
Lexers for hardware descriptor languages.
:copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import RegexLexer, bygroups, include, using, this, words
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
Number, Punctuation, Error
__all__ = ['VerilogLexer', 'SystemVerilogLexer', 'VhdlLexer']
class VerilogLexer(RegexLexer):
"""
For verilog source code with preprocessor directives.
.. versionadded:: 1.4
"""
name = 'verilog'
aliases = ['verilog', 'v']
filenames = ['*.v']
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)[01]+', Number.Bin),
(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_]\w*', Name.Constant),
(r'^(\s*)(package)(\s+)', bygroups(Text, Keyword.Namespace, Text)),
(r'^(\s*)(import)(\s+)', bygroups(Text, Keyword.Namespace, Text),
'import'),
(words((
'always', 'always_comb', 'always_ff', 'always_latch', 'and',
'assign', 'automatic', 'begin', 'break', 'buf', 'bufif0', 'bufif1',
'case', 'casex', 'casez', 'cmos', 'const', 'continue', 'deassign',
'default', 'defparam', 'disable', 'do', 'edge', 'else', 'end', 'endcase',
'endfunction', 'endgenerate', 'endmodule', 'endpackage', 'endprimitive',
'endspecify', 'endtable', 'endtask', 'enum', 'event', 'final', 'for',
'force', 'forever', 'fork', 'function', 'generate', 'genvar', 'highz0',
'highz1', 'if', 'initial', 'inout', 'input', 'integer', 'join', 'large',
'localparam', 'macromodule', 'medium', 'module', 'nand', 'negedge',
'nmos', 'nor', 'not', 'notif0', 'notif1', 'or', 'output', 'packed',
'parameter', 'pmos', 'posedge', 'primitive', 'pull0', 'pull1',
'pulldown', 'pullup', 'rcmos', 'ref', 'release', 'repeat', 'return',
'rnmos', 'rpmos', 'rtran', 'rtranif0', 'rtranif1', 'scalared', 'signed',
'small', 'specify', 'specparam', 'strength', 'string', 'strong0',
'strong1', 'struct', 'table', 'task', 'tran', 'tranif0', 'tranif1',
'type', 'typedef', 'unsigned', 'var', 'vectored', 'void', 'wait',
'weak0', 'weak1', 'while', 'xnor', 'xor'), suffix=r'\b'),
Keyword),
(words((
'accelerate', 'autoexpand_vectornets', 'celldefine', 'default_nettype',
'else', 'elsif', 'endcelldefine', 'endif', 'endprotect', 'endprotected',
'expand_vectornets', 'ifdef', 'ifndef', 'include', 'noaccelerate',
'noexpand_vectornets', 'noremove_gatenames', 'noremove_netnames',
'nounconnected_drive', 'protect', 'protected', 'remove_gatenames',
'remove_netnames', 'resetall', 'timescale', 'unconnected_drive',
'undef'), prefix=r'`', suffix=r'\b'),
Comment.Preproc),
(words((
'bits', 'bitstoreal', 'bitstoshortreal', 'countdrivers', 'display', 'fclose',
'fdisplay', 'finish', 'floor', 'fmonitor', 'fopen', 'fstrobe', 'fwrite',
'getpattern', 'history', 'incsave', 'input', 'itor', 'key', 'list', 'log',
'monitor', 'monitoroff', 'monitoron', 'nokey', 'nolog', 'printtimescale',
'random', 'readmemb', 'readmemh', 'realtime', 'realtobits', 'reset',
'reset_count', 'reset_value', 'restart', 'rtoi', 'save', 'scale', 'scope',
'shortrealtobits', 'showscopes', 'showvariables', 'showvars', 'sreadmemb',
'sreadmemh', 'stime', 'stop', 'strobe', 'time', 'timeformat', 'write'),
prefix=r'\$', suffix=r'\b'),
Name.Builtin),
(words((
'byte', 'shortint', 'int', 'longint', 'integer', 'time',
'bit', 'logic', 'reg', 'supply0', 'supply1', 'tri', 'triand',
'trior', 'tri0', 'tri1', 'trireg', 'uwire', 'wire', 'wand', 'wo'
'shortreal', 'real', 'realtime'), suffix=r'\b'),
Keyword.Type),
(r'[a-zA-Z_]\w*:(?!:)', Name.Label),
(r'\$?[a-zA-Z_]\w*', Name),
],
'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'[\w:]+\*?', 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
class SystemVerilogLexer(RegexLexer):
"""
Extends verilog lexer to recognise all SystemVerilog keywords from IEEE
1800-2009 standard.
.. versionadded:: 1.5
"""
name = 'systemverilog'
aliases = ['systemverilog', 'sv']
filenames = ['*.sv', '*.svh']
mimetypes = ['text/x-systemverilog']
#: optional Comment or Whitespace
_ws = r'(?:\s|//.*?\n|/[*].*?[*]/)+'
tokens = {
'root': [
(r'^\s*`define', Comment.Preproc, 'macro'),
(r'^(\s*)(package)(\s+)', bygroups(Text, Keyword.Namespace, Text)),
(r'^(\s*)(import)(\s+)', bygroups(Text, Keyword.Namespace, Text), 'import'),
(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)[01]+', Number.Bin),
(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_]\w*', Name.Constant),
(words((
'accept_on', 'alias', 'always', 'always_comb', 'always_ff', 'always_latch',
'and', 'assert', 'assign', 'assume', 'automatic', 'before', 'begin', 'bind', 'bins',
'binsof', 'bit', 'break', 'buf', 'bufif0', 'bufif1', 'byte', 'case', 'casex', 'casez',
'cell', 'chandle', 'checker', 'class', 'clocking', 'cmos', 'config', 'const', 'constraint',
'context', 'continue', 'cover', 'covergroup', 'coverpoint', 'cross', 'deassign',
'default', 'defparam', 'design', 'disable', 'dist', 'do', 'edge', 'else', 'end', 'endcase',
'endchecker', 'endclass', 'endclocking', 'endconfig', 'endfunction', 'endgenerate',
'endgroup', 'endinterface', 'endmodule', 'endpackage', 'endprimitive',
'endprogram', 'endproperty', 'endsequence', 'endspecify', 'endtable',
'endtask', 'enum', 'event', 'eventually', 'expect', 'export', 'extends', 'extern',
'final', 'first_match', 'for', 'force', 'foreach', 'forever', 'fork', 'forkjoin',
'function', 'generate', 'genvar', 'global', 'highz0', 'highz1', 'if', 'iff', 'ifnone',
'ignore_bins', 'illegal_bins', 'implies', 'import', 'incdir', 'include',
'initial', 'inout', 'input', 'inside', 'instance', 'int', 'integer', 'interface',
'intersect', 'join', 'join_any', 'join_none', 'large', 'let', 'liblist', 'library',
'local', 'localparam', 'logic', 'longint', 'macromodule', 'matches', 'medium',
'modport', 'module', 'nand', 'negedge', 'new', 'nexttime', 'nmos', 'nor', 'noshowcancelled',
'not', 'notif0', 'notif1', 'null', 'or', 'output', 'package', 'packed', 'parameter',
'pmos', 'posedge', 'primitive', 'priority', 'program', 'property', 'protected',
'pull0', 'pull1', 'pulldown', 'pullup', 'pulsestyle_ondetect', 'pulsestyle_onevent',
'pure', 'rand', 'randc', 'randcase', 'randsequence', 'rcmos', 'real', 'realtime',
'ref', 'reg', 'reject_on', 'release', 'repeat', 'restrict', 'return', 'rnmos',
'rpmos', 'rtran', 'rtranif0', 'rtranif1', 's_always', 's_eventually', 's_nexttime',
's_until', 's_until_with', 'scalared', 'sequence', 'shortint', 'shortreal',
'showcancelled', 'signed', 'small', 'solve', 'specify', 'specparam', 'static',
'string', 'strong', 'strong0', 'strong1', 'struct', 'super', 'supply0', 'supply1',
'sync_accept_on', 'sync_reject_on', 'table', 'tagged', 'task', 'this', 'throughout',
'time', 'timeprecision', 'timeunit', 'tran', 'tranif0', 'tranif1', 'tri', 'tri0',
'tri1', 'triand', 'trior', 'trireg', 'type', 'typedef', 'union', 'unique', 'unique0',
'unsigned', 'until', 'until_with', 'untyped', 'use', 'uwire', 'var', 'vectored',
'virtual', 'void', 'wait', 'wait_order', 'wand', 'weak', 'weak0', 'weak1', 'while',
'wildcard', 'wire', 'with', 'within', 'wor', 'xnor', 'xor'), suffix=r'\b'),
Keyword),
(words((
'`__FILE__', '`__LINE__', '`begin_keywords', '`celldefine', '`default_nettype',
'`define', '`else', '`elsif', '`end_keywords', '`endcelldefine', '`endif',
'`ifdef', '`ifndef', '`include', '`line', '`nounconnected_drive', '`pragma',
'`resetall', '`timescale', '`unconnected_drive', '`undef', '`undefineall'),
suffix=r'\b'),
Comment.Preproc),
(words((
'$display', '$displayb', '$displayh', '$displayo', '$dumpall', '$dumpfile',
'$dumpflush', '$dumplimit', '$dumpoff', '$dumpon', '$dumpports',
'$dumpportsall', '$dumpportsflush', '$dumpportslimit', '$dumpportsoff',
'$dumpportson', '$dumpvars', '$fclose', '$fdisplay', '$fdisplayb',
'$fdisplayh', '$fdisplayo', '$feof', '$ferror', '$fflush', '$fgetc',
'$fgets', '$finish', '$fmonitor', '$fmonitorb', '$fmonitorh', '$fmonitoro',
'$fopen', '$fread', '$fscanf', '$fseek', '$fstrobe', '$fstrobeb', '$fstrobeh',
'$fstrobeo', '$ftell', '$fwrite', '$fwriteb', '$fwriteh', '$fwriteo',
'$monitor', '$monitorb', '$monitorh', '$monitoro', '$monitoroff',
'$monitoron', '$plusargs', '$random', '$readmemb', '$readmemh', '$rewind',
'$sformat', '$sformatf', '$sscanf', '$strobe', '$strobeb', '$strobeh', '$strobeo',
'$swrite', '$swriteb', '$swriteh', '$swriteo', '$test', '$ungetc',
'$value$plusargs', '$write', '$writeb', '$writeh', '$writememb',
'$writememh', '$writeo'), suffix=r'\b'),
Name.Builtin),
(r'(class)(\s+)', bygroups(Keyword, Text), 'classname'),
(words((
'byte', 'shortint', 'int', 'longint', 'integer', 'time',
'bit', 'logic', 'reg', 'supply0', 'supply1', 'tri', 'triand',
'trior', 'tri0', 'tri1', 'trireg', 'uwire', 'wire', 'wand', 'wo'
'shortreal', 'real', 'realtime'), suffix=r'\b'),
Keyword.Type),
(r'[a-zA-Z_]\w*:(?!:)', Name.Label),
(r'\$?[a-zA-Z_]\w*', Name),
],
'classname': [
(r'[a-zA-Z_]\w*', Name.Class, '#pop'),
],
'string': [
(r'"', String, '#pop'),
(r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|[0-7]{1,3})', String.Escape),
(r'[^\\"\n]+', String), # all other characters
(r'\\\n', String), # line continuation
(r'\\', String), # stray backslash
],
'macro': [
(r'[^/\n]+', Comment.Preproc),
(r'/[*](.|\n)*?[*]/', Comment.Multiline),
(r'//.*?\n', Comment.Single, '#pop'),
(r'/', Comment.Preproc),
(r'(?<=\\)\n', Comment.Preproc),
(r'\n', Comment.Preproc, '#pop'),
],
'import': [
(r'[\w:]+\*?', Name.Namespace, '#pop')
]
}
def get_tokens_unprocessed(self, text):
for index, token, value in \
RegexLexer.get_tokens_unprocessed(self, text):
# Convention: mark all upper case names as constants
if token is Name:
if value.isupper():
token = Name.Constant
yield index, token, value
class VhdlLexer(RegexLexer):
"""
For VHDL source code.
.. versionadded:: 1.5
"""
name = 'vhdl'
aliases = ['vhdl']
filenames = ['*.vhdl', '*.vhd']
mimetypes = ['text/x-vhdl']
flags = re.MULTILINE | re.IGNORECASE
tokens = {
'root': [
(r'\n', Text),
(r'\s+', Text),
(r'\\\n', Text), # line continuation
(r'--.*?$', Comment.Single),
(r"'(U|X|0|1|Z|W|L|H|-)'", String.Char),
(r'[~!%^&*+=|?:<>/-]', Operator),
(r"'[a-z_]\w*", Name.Attribute),
(r'[()\[\],.;\']', Punctuation),
(r'"[^\n\\"]*"', String),
(r'(library)(\s+)([a-z_]\w*)',
bygroups(Keyword, Text, Name.Namespace)),
(r'(use)(\s+)(entity)', bygroups(Keyword, Text, Keyword)),
(r'(use)(\s+)([a-z_][\w.]*\.)(all)',
bygroups(Keyword, Text, Name.Namespace, Keyword)),
(r'(use)(\s+)([a-z_][\w.]*)',
bygroups(Keyword, Text, Name.Namespace)),
(r'(std|ieee)(\.[a-z_]\w*)',
bygroups(Name.Namespace, Name.Namespace)),
(words(('std', 'ieee', 'work'), suffix=r'\b'),
Name.Namespace),
(r'(entity|component)(\s+)([a-z_]\w*)',
bygroups(Keyword, Text, Name.Class)),
(r'(architecture|configuration)(\s+)([a-z_]\w*)(\s+)'
r'(of)(\s+)([a-z_]\w*)(\s+)(is)',
bygroups(Keyword, Text, Name.Class, Text, Keyword, Text,
Name.Class, Text, Keyword)),
(r'([a-z_]\w*)(:)(\s+)(process|for)',
bygroups(Name.Class, Operator, Text, Keyword)),
(r'(end)(\s+)', bygroups(using(this), Text), 'endblock'),
include('types'),
include('keywords'),
include('numbers'),
(r'[a-z_]\w*', Name),
],
'endblock': [
include('keywords'),
(r'[a-z_]\w*', Name.Class),
(r'(\s+)', Text),
(r';', Punctuation, '#pop'),
],
'types': [
(words((
'boolean', 'bit', 'character', 'severity_level', 'integer', 'time',
'delay_length', 'natural', 'positive', 'string', 'bit_vector',
'file_open_kind', 'file_open_status', 'std_ulogic', 'std_ulogic_vector',
'std_logic', 'std_logic_vector', 'signed', 'unsigned'), suffix=r'\b'),
Keyword.Type),
],
'keywords': [
(words((
'abs', 'access', 'after', 'alias', 'all', 'and',
'architecture', 'array', 'assert', 'attribute', 'begin', 'block',
'body', 'buffer', 'bus', 'case', 'component', 'configuration',
'constant', 'disconnect', 'downto', 'else', 'elsif', 'end',
'entity', 'exit', 'file', 'for', 'function', 'generate',
'generic', 'group', 'guarded', 'if', 'impure', 'in',
'inertial', 'inout', 'is', 'label', 'library', 'linkage',
'literal', 'loop', 'map', 'mod', 'nand', 'new',
'next', 'nor', 'not', 'null', 'of', 'on',
'open', 'or', 'others', 'out', 'package', 'port',
'postponed', 'procedure', 'process', 'pure', 'range', 'record',
'register', 'reject', 'rem', 'return', 'rol', 'ror', 'select',
'severity', 'signal', 'shared', 'sla', 'sll', 'sra',
'srl', 'subtype', 'then', 'to', 'transport', 'type',
'units', 'until', 'use', 'variable', 'wait', 'when',
'while', 'with', 'xnor', 'xor'), suffix=r'\b'),
Keyword),
],
'numbers': [
(r'\d{1,2}#[0-9a-f_]+#?', Number.Integer),
(r'\d+', Number.Integer),
(r'(\d+\.\d*|\.\d+|\d+)E[+-]?\d+', Number.Float),
(r'X"[0-9a-f_]+"', Number.Hex),
(r'O"[0-7_]+"', Number.Oct),
(r'B"[01_]+"', Number.Bin),
],
}