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import { TokenType, Token } from './tokenizer';
/** Default colors for expression token syntax highlighting. */
export const TOKEN_COLORS = {
expression: '#0086e0',
fn: '#0086e0',
string: '#06a810',
number: '#c25ceb',
keyword: '#1750eb',
operator: '#666',
paren: '#999',
parenUnmatched: '#ff0011'
};
export const TOKEN_CLASS_MAP: Record<string, string> = {
[TokenType.Text]: 'tok-text',
[TokenType.ExpressionPrefix]: 'tok-prefix',
[TokenType.Identifier]: 'tok-id',
[TokenType.FunctionName]: 'tok-fn',
[TokenType.StringLiteral]: 'tok-str',
[TokenType.NumberLiteral]: 'tok-num',
[TokenType.Keyword]: 'tok-kw',
[TokenType.Operator]: 'tok-op',
[TokenType.ContextRef]: 'tok-ctx',
[TokenType.Separator]: 'tok-sep',
[TokenType.Whitespace]: 'tok-ws',
[TokenType.Arrow]: 'tok-arrow',
[TokenType.Bracket]: 'tok-bracket',
[TokenType.EscapedAt]: 'tok-text',
[TokenType.Paren]: 'tok-paren'
};
/** Expression token types get monospace font. */
export const EXPRESSION_TOKENS = new Set([
TokenType.ExpressionPrefix,
TokenType.Identifier,
TokenType.FunctionName,
TokenType.StringLiteral,
TokenType.NumberLiteral,
TokenType.Keyword,
TokenType.Operator,
TokenType.ContextRef,
TokenType.Separator,
TokenType.Whitespace,
TokenType.Arrow,
TokenType.Bracket,
TokenType.Paren
]);
export function getTokenClass(token: Token): string {
if (token.type === TokenType.Paren && token.balanced === false) {
return 'tok-paren-unmatched';
}
return TOKEN_CLASS_MAP[token.type] || 'tok-text';
}
const c = (key: keyof typeof TOKEN_COLORS) => unsafeCSS(TOKEN_COLORS[key]);
/** Shared CSS for token syntax highlighting. */
export const tokenCss = css`
.tok-text {
color: inherit;
}
.tok-prefix {
color: var(--expression-color, ${c('expression')});
font-weight: 600;
}
.tok-id {
color: var(--expression-color, ${c('expression')});
}
.tok-fn {
color: var(--expression-fn-color, ${c('fn')});
font-weight: 900;
}
.tok-str {
color: var(--expression-string-color, ${c('string')});
}
.tok-num {
color: var(--expression-number-color, ${c('number')});
}
.tok-kw {
color: var(--expression-keyword-color, ${c('keyword')});
}
.tok-op {
color: var(--expression-operator-color, ${c('operator')});
}
.tok-ctx {
color: var(--expression-color, ${c('expression')});
}
.tok-sep {
color: var(--expression-operator-color, ${c('operator')});
}
.tok-arrow {
color: var(--expression-operator-color, ${c('operator')});
}
.tok-bracket {
color: var(--expression-operator-color, ${c('operator')});
}
.tok-ws {
/* whitespace tokens — no special color */
}
.tok-newline {
/* Newline chars rendered via white-space: pre-wrap on parent */
}
.tok-paren {
color: ${c('paren')};
}
.tok-paren-unmatched {
color: var(--expression-paren-unmatched-color, ${c('parenUnmatched')});
font-weight: 900;
}
.tok-fn-invalid {
text-decoration: wavy underline ${c('parenUnmatched')};
text-underline-offset: 3px;
}
.tok-mono {
font-family: var(
--expression-font-family,
'SFMono-Regular',
'Consolas',
'Liberation Mono',
'Menlo',
monospace
);
font-size: 0.95em;
}
`;
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