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271 lines
6.8 KiB
271 lines
6.8 KiB
3 years ago
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/**
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* A generic interface that holds all available language tokens.
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*/
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export interface Tokens<T> {
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/**
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* keyword in a regular Algol-style language
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*/
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keyword?: T;
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/**
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* built-in or library object (constant, class, function)
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*/
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built_in?: T;
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/**
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* user-defined type in a language with first-class syntactically significant types, like Haskell
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*/
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type?: T;
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/**
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* special identifier for a built-in value ("true", "false", "null")
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*/
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literal?: T;
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/**
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* number, including units and modifiers, if any.
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*/
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number?: T;
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/**
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* literal regular expression
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*/
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regexp?: T;
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/**
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* literal string, character
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*/
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string?: T;
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/**
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* parsed section inside a literal string
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*/
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subst?: T;
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/**
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* symbolic constant, interned string, goto label
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*/
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symbol?: T;
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/**
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* class or class-level declaration (interfaces, traits, modules, etc)
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*/
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class?: T;
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/**
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* function or method declaration
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*/
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function?: T;
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/**
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* name of a class or a function at the place of declaration
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*/
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title?: T;
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/**
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* block of function arguments (parameters) at the place of declaration
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*/
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params?: T;
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/**
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* comment
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*/
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comment?: T;
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/**
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* documentation markup within comments
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*/
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doctag?: T;
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/**
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* flags, modifiers, annotations, processing instructions, preprocessor directive, etc
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*/
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meta?: T;
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/**
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* keyword or built-in within meta construct
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*/
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'meta-keyword'?: T;
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/**
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* string within meta construct
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*/
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'meta-string'?: T;
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/**
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* heading of a section in a config file, heading in text markup
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*/
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section?: T;
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/**
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* XML/HTML tag
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*/
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tag?: T;
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/**
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* name of an XML tag, the first word in an s-expression
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*/
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name?: T;
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/**
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* s-expression name from the language standard library
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*/
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'builtin-name'?: T;
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/**
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* name of an attribute with no language defined semantics (keys in JSON, setting names in .ini), also sub-attribute within another highlighted object, like XML tag
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*/
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attr?: T;
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/**
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* name of an attribute followed by a structured value part, like CSS properties
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*/
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attribute?: T;
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/**
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* variable in a config or a template file, environment var expansion in a script
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*/
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variable?: T;
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/**
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* list item bullet in text markup
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*/
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bullet?: T;
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/**
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* code block in text markup
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*/
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code?: T;
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/**
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* emphasis in text markup
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*/
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emphasis?: T;
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/**
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* strong emphasis in text markup
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*/
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strong?: T;
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/**
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* mathematical formula in text markup
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*/
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formula?: T;
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/**
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* hyperlink in text markup
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*/
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link?: T;
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/**
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* quotation in text markup
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*/
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quote?: T;
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/**
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* tag selector in CSS
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*/
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'selector-tag'?: T;
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/**
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* #id selector in CSS
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*/
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'selector-id'?: T;
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/**
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* .class selector in CSS
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*/
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'selector-class'?: T;
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/**
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* [attr] selector in CSS
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*/
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'selector-attr'?: T;
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/**
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* :pseudo selector in CSS
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*/
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'selector-pseudo'?: T;
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/**
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* tag of a template language
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*/
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'template-tag'?: T;
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/**
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* variable in a template language
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*/
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'template-variable'?: T;
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/**
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* added or changed line in a diff
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*/
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addition?: T;
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/**
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* deleted line in a diff
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*/
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deletion?: T;
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}
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/**
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* Possible styles that can be used on a token in a JSON theme.
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* See the [chalk](https://github.com/chalk/chalk) module for more information.
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* `plain` means no styling.
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*/
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export declare type Style = 'reset' | 'bold' | 'dim' | 'italic' | 'underline' | 'inverse' | 'hidden' | 'strikethrough' | 'black' | 'red' | 'green' | 'yellow' | 'blue' | 'magenta' | 'cyan' | 'white' | 'gray' | 'bgBlack' | 'bgRed' | 'bgGreen' | 'bgYellow' | 'bgBlue' | 'bgMagenta' | 'bgCyan' | 'plain';
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/**
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* The schema of a JSON file defining a custom scheme. The key is a language token, while the value
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* is a [chalk](https://github.com/chalk/chalk#styles) style.
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*
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* Example:
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* ```json
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* {
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* "keyword": ["red", "bold"],
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* "addition": "green",
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* "deletion": ["red", "strikethrough"],
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* "number": "plain"
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* }
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* ```
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*/
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export interface JsonTheme extends Tokens<Style | Style[]> {
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}
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/**
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* Passed to [[highlight]] as the `theme` option. A theme is a map of language tokens to a function
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* that takes in string value of the token and returns a new string with colorization applied
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* (typically a [chalk](https://github.com/chalk/chalk) style), but you can also provide your own
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* formatting functions.
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*
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* Example:
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* ```ts
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* import {Theme, plain} from 'cli-highlight';
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* import chalk = require('chalk');
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*
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* const myTheme: Theme = {
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* keyword: chalk.red.bold,
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* addition: chalk.green,
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* deletion: chalk.red.strikethrough,
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* number: plain
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* };
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* ```
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*/
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export interface Theme extends Tokens<(codePart: string) => string> {
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/**
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* things not matched by any token
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*/
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default?: (codePart: string) => string;
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}
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/**
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* Identity function for tokens that should not be styled (returns the input string as-is).
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* See [[Theme]] for an example.
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*/
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export declare const plain: (codePart: string) => string;
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/**
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* The default theme. It is possible to override just individual keys.
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*/
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export declare const DEFAULT_THEME: Theme;
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/**
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* Converts a [[JsonTheme]] with string values to a [[Theme]] with formatter functions. Used by [[parse]].
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*/
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export declare function fromJson(json: JsonTheme): Theme;
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/**
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* Converts a [[Theme]] with formatter functions to a [[JsonTheme]] with string values. Used by [[stringify]].
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*/
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export declare function toJson(theme: Theme): JsonTheme;
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/**
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* Stringifies a [[Theme]] with formatter functions to a JSON string.
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*
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* ```ts
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* import chalk = require('chalk');
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* import {stringify} from 'cli-highlight';
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* import * as fs from 'fs';
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*
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* const myTheme: Theme = {
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* keyword: chalk.red.bold,
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* addition: chalk.green,
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* deletion: chalk.red.strikethrough,
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* number: plain
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* }
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* const json = stringify(myTheme);
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* fs.writeFile('mytheme.json', json, (err: any) => {
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* if (err) throw err;
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* console.log('Theme saved');
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* });
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* ```
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*/
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export declare function stringify(theme: Theme): string;
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/**
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* Parses a JSON string into a [[Theme]] with formatter functions.
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*
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* ```ts
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* import * as fs from 'fs';
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* import {parse, highlight} from 'cli-highlight';
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*
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* fs.readFile('mytheme.json', 'utf8', (err: any, json: string) => {
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* if (err) throw err;
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* const code = highlight('SELECT * FROM table', {theme: parse(json)});
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* console.log(code);
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* });
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* ```
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*/
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export declare function parse(json: string): Theme;
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