mirror of https://github.com/jkjoy/sunpeiwen.git
117 lines
3.7 KiB
JavaScript
117 lines
3.7 KiB
JavaScript
/*!
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* strip-comments <https://github.com/jonschlinkert/strip-comments>
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* Copyright (c) 2014-present, Jon Schlinkert.
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* Released under the MIT License.
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*/
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'use strict';
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const compile = require('./lib/compile');
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const parse = require('./lib/parse');
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/**
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* Strip all code comments from the given `input`, including protected
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* comments that start with `!`, unless disabled by setting `options.keepProtected`
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* to true.
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*
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* ```js
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* const str = strip('const foo = "bar";// this is a comment\n /* me too *\/');
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* console.log(str);
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* // => 'const foo = "bar";'
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* ```
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* @name strip
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* @param {String} `input` string from which to strip comments
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* @param {Object} `options` optional options, passed to [extract-comments][extract-comments]
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* @option {Boolean} [options] `line` if `false` strip only block comments, default `true`
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* @option {Boolean} [options] `block` if `false` strip only line comments, default `true`
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* @option {Boolean} [options] `keepProtected` Keep ignored comments (e.g. `/*!` and `//!`)
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* @option {Boolean} [options] `preserveNewlines` Preserve newlines after comments are stripped
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* @return {String} modified input
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* @api public
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*/
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const strip = module.exports = (input, options) => {
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const opts = { ...options, block: true, line: true };
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return compile(parse(input, opts), opts);
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};
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/**
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* Strip only block comments.
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*
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* ```js
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* const strip = require('..');
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* const str = strip.block('const foo = "bar";// this is a comment\n /* me too *\/');
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* console.log(str);
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* // => 'const foo = "bar";// this is a comment'
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* ```
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* @name .block
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* @param {String} `input` string from which to strip comments
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* @param {Object} `options` pass `opts.keepProtected: true` to keep ignored comments (e.g. `/*!`)
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* @return {String} modified string
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* @api public
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*/
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strip.block = (input, options) => {
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const opts = { ...options, block: true };
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return compile(parse(input, opts), opts);
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};
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/**
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* Strip only line comments.
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*
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* ```js
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* const str = strip.line('const foo = "bar";// this is a comment\n /* me too *\/');
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* console.log(str);
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* // => 'const foo = "bar";\n/* me too *\/'
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* ```
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* @name .line
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* @param {String} `input` string from which to strip comments
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* @param {Object} `options` pass `opts.keepProtected: true` to keep ignored comments (e.g. `//!`)
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* @return {String} modified string
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* @api public
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*/
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strip.line = (input, options) => {
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const opts = { ...options, line: true };
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return compile(parse(input, opts), opts);
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};
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/**
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* Strip the first comment from the given `input`. Or, if `opts.keepProtected` is true,
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* the first non-protected comment will be stripped.
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*
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* ```js
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* const output = strip.first(input, { keepProtected: true });
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* console.log(output);
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* // => '//! first comment\nfoo; '
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* ```
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* @name .first
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* @param {String} `input`
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* @param {Object} `options` pass `opts.keepProtected: true` to keep comments with `!`
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* @return {String}
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* @api public
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*/
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strip.first = (input, options) => {
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const opts = { ...options, block: true, line: true, first: true };
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return compile(parse(input, opts), opts);
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};
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/**
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* Parses a string and returns a basic CST (Concrete Syntax Tree).
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*
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* ```js
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* const strip = require('..');
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* const str = strip.block('const foo = "bar";// this is a comment\n /* me too *\/');
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* console.log(str);
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* // => 'const foo = "bar";// this is a comment'
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* ```
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* @name .block
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* @param {String} `input` string from which to strip comments
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* @param {Object} `options` pass `opts.keepProtected: true` to keep ignored comments (e.g. `/*!`)
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* @return {String} modified string
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* @api public
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*/
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strip.parse = parse;
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