Prism.languages.vhdl = {
comment: /--.+/,
// support for all logic vectors
'vhdl-vectors': {
pattern: /\b[oxb]"[\da-f_]+"|"[01uxzwlh-]+"/i,
alias: 'number',
},
// support for operator overloading included
'quoted-function': {
pattern: /"\S+?"(?=\()/,
alias: 'function',
},
string: /"(?:[^\\"\r\n]|\\(?:\r\n|[\s\S]))*"/,
constant: /\b(?:library|use)\b/i,
// support for predefined attributes included
keyword:
/\b(?:'active|'ascending|'base|'delayed|'driving|'driving_value|'event|'high|'image|'instance_name|'last_active|'last_event|'last_value|'left|'leftof|'length|'low|'path_name|'pos|'pred|'quiet|'range|'reverse_range|'right|'rightof|'simple_name|'stable|'succ|'transaction|'val|'value|access|after|alias|all|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|new|next|null|of|on|open|others|out|package|port|postponed|procedure|process|pure|range|record|register|reject|report|return|select|severity|shared|signal|subtype|then|to|transport|type|unaffected|units|until|use|variable|wait|when|while|with)\b/i,
boolean: /\b(?:false|true)\b/i,
function: /\w+(?=\()/,
// decimal, based, physical, and exponential numbers supported
number: /'[01uxzwlh-]'|\b(?:\d+#[\da-f_.]+#|\d[\d_.]*)(?:e[-+]?\d+)?/i,
operator:
/[<>]=?|:=|[-+*/&=]|\b(?:abs|and|mod|nand|nor|not|or|rem|rol|ror|sla|sll|sra|srl|xnor|xor)\b/i,
punctuation: /[{}[\];(),.:]/,
};