Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 127x 127x 127x 127x 127x 127x 127x 127x 127x 127x 127x 127x 11x 11x 11x 11x 11x | /**
* @license Apache-2.0
*
* Copyright (c) 2019 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
/* eslint-disable no-underscore-dangle */
// MODULES //
var logger = require( 'debug' );
var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
var isNonNegativeInteger = require( '@stdlib/assert/is-nonnegative-integer' ).isPrimitive;
var isRegExp = require( '@stdlib/assert/is-regexp' );
var isNonNegativeIntegerArray = require( '@stdlib/assert/is-nonnegative-integer-array' ).primitives;
var format = require( '@stdlib/string/format' );
var displayPrompt = require( './../display_prompt.js' );
// VARIABLES //
var debug = logger( 'repl:command:rerun' );
// MAIN //
/**
* Returns a callback to be invoked upon calling the `rerun` command.
*
* @private
* @param {REPL} repl - REPL instance
* @returns {Function} callback
*/
function command( repl ) {
return onCommand;
/**
* Reruns previous commands.
*
* @private
* @param {(string|RegExp|NonNegativeInteger|NonNegativeIntegerArray)} [arg=1] - filter
* @returns {void}
*/
function onCommand( arg ) {
var nargs;
var len;
var FLG;
var err;
len = repl._history.length;
if ( len === 0 ) {
repl._ostream.write( 'History is empty. No commands to run.\n' );
return;
}
nargs = arguments.length;
if ( nargs > 0 ) {
if ( isString( arg ) ) {
FLG = 1;
} else if ( isNonNegativeInteger( arg ) ) {
FLG = 2;
} else if ( isRegExp( arg ) ) {
FLG = 3;
} else if ( isNonNegativeIntegerArray( arg ) ) {
FLG = 4;
} else {
err = new TypeError( format( 'invalid argument. Must provide a string, regular expression, nonnegative integer, or an array of nonnegative integers. Value: `%s`.', arg ) );
debug( 'Error: %s', err.message );
repl._ostream.write( 'Error: '+err.message+'\n' );
return;
}
}
// Why defer? In order to allow the `rerun()` command to finish before actually evaluating the commands to rerun, thus ensuring that commands are run as if a user manually enters them...
repl.once( 'drain', onFinish );
/**
* Callback invoked once the `rerun()` command finishes.
*
* @private
* @param {string} cmd - command
* @param {boolean} success - boolean indicating whether the command successfully executed
* @returns {void}
*/
function onFinish() {
var n;
var i;
var j;
if ( nargs === 0 ) {
// Evaluate the last command...
repl._rli.write( repl._history[ len-2 ]+'\n' );
return;
}
if ( FLG === 1 ) {
// TODO: subsequence string parsing (use an iterator!!!)
return;
}
if ( FLG === 2 ) {
i = len - (3*arg);
if ( i < 0 ) {
n = len / 3;
i = 0;
} else {
n = arg;
}
// Evaluate the most recent `n` commands...
i += 1;
j = 0;
for ( ; i < len; i += 3 ) {
repl._rli.write( repl._history[ i ]+'\n' );
if ( j < n-1 ) {
displayPrompt( repl, false );
}
j += 1;
}
return;
}
if ( FLG === 3 ) {
// Scan the history for the most recent command matching the regular expression...
for ( i = len-2; i >= 0; i -= 3 ) {
if ( arg.test( repl._history[ i ] ) ) {
repl._rli.write( repl._history[ i ]+'\n' );
return;
}
}
return;
}
// Case: FLG === 4
n = arg.length;
for ( i = 0; i < n; i++ ) {
// Scan the history for the command identifier...
for ( j = 0; j < len; j += 3 ) {
if ( arg[ i ] === repl._history[ j ] ) {
repl._rli.write( repl._history[ j+1 ]+'\n' );
if ( i < n-1 ) {
displayPrompt( repl, false );
}
break;
}
}
}
}
}
}
// EXPORTS //
module.exports = command;
|