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