static/ansi-to-html.js - compiler-explorer - Rivoreo Source Code Repositories

 // Copyright (c) 2012 Rob Burns
 //
 // Permission is hereby granted, free of charge, to any person
 // obtaining a copy of this software and associated documentation
 // files (the "Software"), to deal in the Software without
 // restriction, including without limitation the rights to use,
 // copy, modify, merge, publish, distribute, sublicense, and/or sell
 // copies of the Software, and to permit persons to whom the
 // Software is furnished to do so, subject to the following
 // conditions:
 //
 // The above copyright notice and this permission notice shall be
 // included in all copies or substantial portions of the Software.
 //
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 // OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.

 // Converted from https://github.com/rburns/ansi-to-html

 'use strict';

 var _ = require('underscore');

 var defaults = {
     fg: '#FFF',
     bg: '#000',
     newline: false,
     escapeXML: false,
     stream: false,
     colors: getDefaultColors()
 };

 function getDefaultColors() {
     var colors = {
         0: '#000',
         1: '#A00',
         2: '#0A0',
         3: '#A50',
         4: '#00A',
         5: '#A0A',
         6: '#0AA',
         7: '#AAA',
         8: '#555',
         9: '#F55',
         10: '#5F5',
         11: '#FF5',
         12: '#55F',
         13: '#F5F',
         14: '#5FF',
         15: '#FFF'
     };

     range(0, 5).forEach(function (red) {
         range(0, 5).forEach(function (green) {
             range(0, 5).forEach(function (blue) {
                 return setStyleColor(red, green, blue, colors);
             });
         });
     });

     range(0, 23).forEach(function (gray) {
         var c = gray + 232;
         var l = toHexString(gray * 10 + 8);

         colors[c] = '#' + l + l + l;
     });

     return colors;
 }

 /**
  * @param {number} red
  * @param {number} green
  * @param {number} blue
  * @param {object} colors
  */
 function setStyleColor(red, green, blue, colors) {
     var c = 16 + red * 36 + green * 6 + blue;
     var r = red > 0 ? red * 40 + 55 : 0;
     var g = green > 0 ? green * 40 + 55 : 0;
     var b = blue > 0 ? blue * 40 + 55 : 0;

     colors[c] = toColorHexString([r, g, b]);
 }

 /**
  * Converts from a number like 15 to a hex string like 'F'
  * @param {number} num
  * @returns {string}
  */
 function toHexString(num) {
     var str = num.toString(16);

     while (str.length < 2) {
         str = '0' + str;
     }

     return str;
 }

 /**
  * Converts from an array of numbers like [15, 15, 15] to a hex string like 'FFF'
  * @param {[red, green, blue]} ref
  * @returns {string}
  */
 function toColorHexString(ref) {
     var results = [];

     for (var j = 0, len = ref.length; j < len; j++) {
         results.push(toHexString(ref[j]));
     }

     return '#' + results.join('');
 }

 /**
  * @param {Array} stack
  * @param {string} token
  * @param {*} data
  * @param {object} options
  */
 function generateOutput(stack, token, data, options) {
     var result;

     if (token === 'text') {
         result = pushText(data, options);
     } else if (token === 'display') {
         result = handleDisplay(stack, data, options);
     } else if (token === 'xterm256') {
         result = pushForegroundColor(stack, options.colors[data]);
     }

     return result;
 }

 /**
  * @param {Array} stack
  * @param {number} code
  * @param {object} options
  * @returns {*}
  */
 function handleDisplay(stack, code, options) {
     code = parseInt(code, 10);
     var result;

     var codeMap = {
         '-1': function _() {
             return '<br/>';
         },
         0: function _() {
             return stack.length && resetStyles(stack);
         },
         1: function _() {
             return pushTag(stack, 'b');
         },
         3: function _() {
             return pushTag(stack, 'i');
         },
         4: function _() {
             return pushTag(stack, 'u');
         },
         8: function _() {
             return pushStyle(stack, 'display:none');
         },
         9: function _() {
             return pushTag(stack, 'strike');
         },
         22: function _() {
             return closeTag(stack, 'b');
         },
         23: function _() {
             return closeTag(stack, 'i');
         },
         24: function _() {
             return closeTag(stack, 'u');
         },
         39: function _() {
             return pushForegroundColor(stack, options.fg);
         },
         49: function _() {
             return pushBackgroundColor(stack, options.bg);
         }
     };

     if (codeMap[code]) {
         result = codeMap[code]();
     } else if (4 < code && code < 7) {
         result = pushTag(stack, 'blink');
     } else if (29 < code && code < 38) {
         result = pushForegroundColor(stack, options.colors[code - 30]);
     } else if (39 < code && code < 48) {
         result = pushBackgroundColor(stack, options.colors[code - 40]);
     } else if (89 < code && code < 98) {
         result = pushForegroundColor(stack, options.colors[8 + (code - 90)]);
     } else if (99 < code && code < 108) {
         result = pushBackgroundColor(stack, options.colors[8 + (code - 100)]);
     }

     return result;
 }

 /**
  * Clear all the styles
  * @returns {string}
  */
 function resetStyles(stack) {
     var stackClone = stack.slice(0);

     stack.length = 0;

     return stackClone.reverse().map(function (tag) {
         return '</' + tag + '>';
     }).join('');
 }

 /**
  * Creates an array of numbers ranging from low to high
  * @param {number} low
  * @param {number} high
  * @returns {Array}
  * @example range(3, 7); // creates [3, 4, 5, 6, 7]
  */
 function range(low, high) {
     var results = [];

     for (var j = low; j <= high; j++) {
         results.push(j);
     }

     return results;
 }

 /**
  * Returns a new function that is true if value is NOT the same category
  * @param {string} category
  * @returns {function}
  */
 function notCategory(category) {
     return function (e) {
         return (category === null || e.category !== category) && category !== 'all';
     };
 }

 /**
  * Converts a code into an ansi token type
  * @param {number} code
  * @returns {string}
  */
 function categoryForCode(code) {
     code = parseInt(code, 10);
     var result = null;

     if (code === 0) {
         result = 'all';
     } else if (code === 1) {
         result = 'bold';
     } else if (2 < code && code < 5) {
         result = 'underline';
     } else if (4 < code && code < 7) {
         result = 'blink';
     } else if (code === 8) {
         result = 'hide';
     } else if (code === 9) {
         result = 'strike';
     } else if (29 < code && code < 38 || code === 39 || 89 < code && code < 98) {
         result = 'foreground-color';
     } else if (39 < code && code < 48 || code === 49 || 99 < code && code < 108) {
         result = 'background-color';
     }

     return result;
 }

 /**
  * @param {string} text
  * @param {object} options
  * @returns {string}
  */
 function pushText(text, options) {
     if (options.escapeXML) {
         return text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
     }

     return text;
 }

 /**
  * @param {Array} stack
  * @param {string} tag
  * @param {string} [style='']
  * @returns {string}
  */
 function pushTag(stack, tag, style) {
     if (!style) {
         style = '';
     }

     stack.push(tag);

     return ['<' + tag, style ? ' style="' + style + '"' : void 0, '>'].join('');
 }

 /**
  * @param {Array} stack
  * @param {string} style
  * @returns {string}
  */
 function pushStyle(stack, style) {
     return pushTag(stack, 'span', style);
 }

 function pushForegroundColor(stack, color) {
     return pushTag(stack, 'span', 'color:' + color);
 }

 function pushBackgroundColor(stack, color) {
     return pushTag(stack, 'span', 'background-color:' + color);
 }

 /**
  * @param {Array} stack
  * @param {string} style
  * @returns {string}
  */
 function closeTag(stack, style) {
     var last;

     if (stack.slice(-1)[0] === style) {
         last = stack.pop();
     }

     if (last) {
         return '</' + style + '>';
     }
 }

 /**
  * @param {string} text
  * @param {object} options
  * @param {function} callback
  * @returns {Array}
  */
 function tokenize(text, options, callback) {
     var ansiMatch = false;
     var ansiHandler = 3;

     function remove() {
         return '';
     }

     function removeXterm256(m, g1) {
         callback('xterm256', g1);
         return '';
     }

     function newline(m) {
         if (options.newline) {
             callback('display', -1);
         } else {
             callback('text', m);
         }

         return '';
     }

     function ansiMess(m, g1) {
         ansiMatch = true;
         if (g1.trim().length === 0) {
             g1 = '0';
         }

         g1 = g1.replace(/;+$/, "").split(';');

         for (var o = 0, len = g1.length; o < len; o++) {
             callback('display', g1[o]);
         }

         return '';
     }

     function realText(m) {
         callback('text', m);

         return '';
     }

     /* eslint no-control-regex:0 */
     var tokens = [{
         pattern: /^\x08+/,
         sub: remove
     }, {
         pattern: /^\x1b\[[012]?K/,
         sub: remove
     }, {
         pattern: /^\x1b\[38;5;(\d+)m/,
         sub: removeXterm256
     }, {
         pattern: /^\n/,
         sub: newline
     }, {
         pattern: /^\x1b\[((?:\d{1,3};?)+|)m/,
         sub: ansiMess
     }, {
         pattern: /^\x1b\[?[\d;]{0,3}/,
         sub: remove
     }, {
         pattern: /^([^\x1b\x08\n]+)/,
         sub: realText
     }];

     function process(handler, i) {
         if (i > ansiHandler && ansiMatch) {
             return;
         }

         ansiMatch = false;

         text = text.replace(handler.pattern, handler.sub);
     }

     var handler;
     var results1 = [];
     var length = text.length;

     outer: while (length > 0) {
         for (var i = 0, o = 0, len = tokens.length; o < len; i = ++o) {
             handler = tokens[i];
             process(handler, i);

             if (text.length !== length) {
                 // We matched a token and removed it from the text. We need to
                 // start matching *all* tokens against the new text.
                 length = text.length;
                 continue outer;
             }
         }

         if (text.length === length) {
             break;
         } else {
             results1.push(0);
         }

         length = text.length;
     }

     return results1;
 }

 /**
  * If streaming, then the stack is "sticky"
  *
  * @param {Array} stickyStack
  * @param {string} token
  * @param {*} data
  * @returns {Array}
  */
 function updateStickyStack(stickyStack, token, data) {
     if (token !== 'text') {
         stickyStack = stickyStack.filter(notCategory(categoryForCode(data)));
         stickyStack.push({token: token, data: data, category: categoryForCode(data)});
     }

     return stickyStack;
 }

 function Filter(options) {
     options = options || {};

     if (options.colors) {
         options.colors = _.extend(defaults.colors, options.colors);
     }
     this.opts = _.extend({}, defaults, options);
     this.stack = [];
     this.stickyStack = [];
 }

 Filter.prototype = {
     toHtml: function toHtml(input) {
         var _this = this;

         input = typeof input === 'string' ? [input] : input;
         var stack = this.stack;
         var options = this.opts;
         var buf = [];

         this.stickyStack.forEach(function (element) {
             var output = generateOutput(stack, element.token, element.data, options);

             if (output) {
                 buf.push(output);
             }
         });

         tokenize(input.join(''), options, function (token, data) {
             var output = generateOutput(stack, token, data, options);

             if (output) {
                 buf.push(output);
             }

             if (options.stream) {
                 _this.stickyStack = updateStickyStack(_this.stickyStack, token, data);
             }
         });

         if (stack.length) {
             buf.push(resetStyles(stack));
         }

         return buf.join('');
     }
 };

 module.exports = Filter;
	// Copyright (c) 2012 Rob Burns
	//
	// Permission is hereby granted, free of charge, to any person
	// obtaining a copy of this software and associated documentation
	// files (the "Software"), to deal in the Software without
	// restriction, including without limitation the rights to use,
	// copy, modify, merge, publish, distribute, sublicense, and/or sell
	// copies of the Software, and to permit persons to whom the
	// Software is furnished to do so, subject to the following
	// conditions:
	//
	// The above copyright notice and this permission notice shall be
	// included in all copies or substantial portions of the Software.
	//
	// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
	// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
	// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
	// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	// OTHER DEALINGS IN THE SOFTWARE.

	// Converted from https://github.com/rburns/ansi-to-html

	'use strict';

	var _ = require('underscore');

	var defaults = {
	fg: '#FFF',
	bg: '#000',
	newline: false,
	escapeXML: false,
	stream: false,
	colors: getDefaultColors()
	};

	function getDefaultColors() {
	var colors = {
	0: '#000',
	1: '#A00',
	2: '#0A0',
	3: '#A50',
	4: '#00A',
	5: '#A0A',
	6: '#0AA',
	7: '#AAA',
	8: '#555',
	9: '#F55',
	10: '#5F5',
	11: '#FF5',
	12: '#55F',
	13: '#F5F',
	14: '#5FF',
	15: '#FFF'
	};

	range(0, 5).forEach(function (red) {
	range(0, 5).forEach(function (green) {
	range(0, 5).forEach(function (blue) {
	return setStyleColor(red, green, blue, colors);
	});
	});
	});

	range(0, 23).forEach(function (gray) {
	var c = gray + 232;
	var l = toHexString(gray * 10 + 8);

	colors[c] = '#' + l + l + l;
	});

	return colors;
	}

	/**
	* @param {number} red
	* @param {number} green
	* @param {number} blue
	* @param {object} colors
	*/
	function setStyleColor(red, green, blue, colors) {
	var c = 16 + red * 36 + green * 6 + blue;
	var r = red > 0 ? red * 40 + 55 : 0;
	var g = green > 0 ? green * 40 + 55 : 0;
	var b = blue > 0 ? blue * 40 + 55 : 0;

	colors[c] = toColorHexString([r, g, b]);
	}

	/**
	* Converts from a number like 15 to a hex string like 'F'
	* @param {number} num
	* @returns {string}
	*/
	function toHexString(num) {
	var str = num.toString(16);

	while (str.length < 2) {
	str = '0' + str;
	}

	return str;
	}

	/**
	* Converts from an array of numbers like [15, 15, 15] to a hex string like 'FFF'
	* @param {[red, green, blue]} ref
	* @returns {string}
	*/
	function toColorHexString(ref) {
	var results = [];

	for (var j = 0, len = ref.length; j < len; j++) {
	results.push(toHexString(ref[j]));
	}

	return '#' + results.join('');
	}

	/**
	* @param {Array} stack
	* @param {string} token
	* @param {*} data
	* @param {object} options
	*/
	function generateOutput(stack, token, data, options) {
	var result;

	if (token === 'text') {
	result = pushText(data, options);
	} else if (token === 'display') {
	result = handleDisplay(stack, data, options);
	} else if (token === 'xterm256') {
	result = pushForegroundColor(stack, options.colors[data]);
	}

	return result;
	}

	/**
	* @param {Array} stack
	* @param {number} code
	* @param {object} options
	* @returns {*}
	*/
	function handleDisplay(stack, code, options) {
	code = parseInt(code, 10);
	var result;

	var codeMap = {
	'-1': function _() {
	return '<br/>';
	},
	0: function _() {
	return stack.length && resetStyles(stack);
	},
	1: function _() {
	return pushTag(stack, 'b');
	},
	3: function _() {
	return pushTag(stack, 'i');
	},
	4: function _() {
	return pushTag(stack, 'u');
	},
	8: function _() {
	return pushStyle(stack, 'display:none');
	},
	9: function _() {
	return pushTag(stack, 'strike');
	},
	22: function _() {
	return closeTag(stack, 'b');
	},
	23: function _() {
	return closeTag(stack, 'i');
	},
	24: function _() {
	return closeTag(stack, 'u');
	},
	39: function _() {
	return pushForegroundColor(stack, options.fg);
	},
	49: function _() {
	return pushBackgroundColor(stack, options.bg);
	}
	};

	if (codeMap[code]) {
	result = codeMap[code]();
	} else if (4 < code && code < 7) {
	result = pushTag(stack, 'blink');
	} else if (29 < code && code < 38) {
	result = pushForegroundColor(stack, options.colors[code - 30]);
	} else if (39 < code && code < 48) {
	result = pushBackgroundColor(stack, options.colors[code - 40]);
	} else if (89 < code && code < 98) {
	result = pushForegroundColor(stack, options.colors[8 + (code - 90)]);
	} else if (99 < code && code < 108) {
	result = pushBackgroundColor(stack, options.colors[8 + (code - 100)]);
	}

	return result;
	}

	/**
	* Clear all the styles
	* @returns {string}
	*/
	function resetStyles(stack) {
	var stackClone = stack.slice(0);

	stack.length = 0;

	return stackClone.reverse().map(function (tag) {
	return '</' + tag + '>';
	}).join('');
	}

	/**
	* Creates an array of numbers ranging from low to high
	* @param {number} low
	* @param {number} high
	* @returns {Array}
	* @example range(3, 7); // creates [3, 4, 5, 6, 7]
	*/
	function range(low, high) {
	var results = [];

	for (var j = low; j <= high; j++) {
	results.push(j);
	}

	return results;
	}

	/**
	* Returns a new function that is true if value is NOT the same category
	* @param {string} category
	* @returns {function}
	*/
	function notCategory(category) {
	return function (e) {
	return (category === null \|\| e.category !== category) && category !== 'all';
	};
	}

	/**
	* Converts a code into an ansi token type
	* @param {number} code
	* @returns {string}
	*/
	function categoryForCode(code) {
	code = parseInt(code, 10);
	var result = null;

	if (code === 0) {
	result = 'all';
	} else if (code === 1) {
	result = 'bold';
	} else if (2 < code && code < 5) {
	result = 'underline';
	} else if (4 < code && code < 7) {
	result = 'blink';
	} else if (code === 8) {
	result = 'hide';
	} else if (code === 9) {
	result = 'strike';
	} else if (29 < code && code < 38 \|\| code === 39 \|\| 89 < code && code < 98) {
	result = 'foreground-color';
	} else if (39 < code && code < 48 \|\| code === 49 \|\| 99 < code && code < 108) {
	result = 'background-color';
	}

	return result;
	}

	/**
	* @param {string} text
	* @param {object} options
	* @returns {string}
	*/
	function pushText(text, options) {
	if (options.escapeXML) {
	return text.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
	}

	return text;
	}

	/**
	* @param {Array} stack
	* @param {string} tag
	* @param {string} [style='']
	* @returns {string}
	*/
	function pushTag(stack, tag, style) {
	if (!style) {
	style = '';
	}

	stack.push(tag);

	return ['<' + tag, style ? ' style="' + style + '"' : void 0, '>'].join('');
	}

	/**
	* @param {Array} stack
	* @param {string} style
	* @returns {string}
	*/
	function pushStyle(stack, style) {
	return pushTag(stack, 'span', style);
	}

	function pushForegroundColor(stack, color) {
	return pushTag(stack, 'span', 'color:' + color);
	}

	function pushBackgroundColor(stack, color) {
	return pushTag(stack, 'span', 'background-color:' + color);
	}

	/**
	* @param {Array} stack
	* @param {string} style
	* @returns {string}
	*/
	function closeTag(stack, style) {
	var last;

	if (stack.slice(-1)[0] === style) {
	last = stack.pop();
	}

	if (last) {
	return '</' + style + '>';
	}
	}

	/**
	* @param {string} text
	* @param {object} options
	* @param {function} callback
	* @returns {Array}
	*/
	function tokenize(text, options, callback) {
	var ansiMatch = false;
	var ansiHandler = 3;

	function remove() {
	return '';
	}

	function removeXterm256(m, g1) {
	callback('xterm256', g1);
	return '';
	}

	function newline(m) {
	if (options.newline) {
	callback('display', -1);
	} else {
	callback('text', m);
	}

	return '';
	}

	function ansiMess(m, g1) {
	ansiMatch = true;
	if (g1.trim().length === 0) {
	g1 = '0';
	}

	g1 = g1.replace(/;+$/, "").split(';');

	for (var o = 0, len = g1.length; o < len; o++) {
	callback('display', g1[o]);
	}

	return '';
	}

	function realText(m) {
	callback('text', m);

	return '';
	}

	/* eslint no-control-regex:0 */
	var tokens = [{
	pattern: /^\x08+/,
	sub: remove
	}, {
	pattern: /^\x1b\[[012]?K/,
	sub: remove
	}, {
	pattern: /^\x1b\[38;5;(\d+)m/,
	sub: removeXterm256
	}, {
	pattern: /^\n/,
	sub: newline
	}, {
	pattern: /^\x1b\[((?:\d{1,3};?)+\|)m/,
	sub: ansiMess
	}, {
	pattern: /^\x1b\[?[\d;]{0,3}/,
	sub: remove
	}, {
	pattern: /^([^\x1b\x08\n]+)/,
	sub: realText
	}];

	function process(handler, i) {
	if (i > ansiHandler && ansiMatch) {
	return;
	}

	ansiMatch = false;

	text = text.replace(handler.pattern, handler.sub);
	}

	var handler;
	var results1 = [];
	var length = text.length;

	outer: while (length > 0) {
	for (var i = 0, o = 0, len = tokens.length; o < len; i = ++o) {
	handler = tokens[i];
	process(handler, i);

	if (text.length !== length) {
	// We matched a token and removed it from the text. We need to
	// start matching all tokens against the new text.
	length = text.length;
	continue outer;
	}
	}

	if (text.length === length) {
	break;
	} else {
	results1.push(0);
	}

	length = text.length;
	}

	return results1;
	}

	/**
	* If streaming, then the stack is "sticky"
	*
	* @param {Array} stickyStack
	* @param {string} token
	* @param {*} data
	* @returns {Array}
	*/
	function updateStickyStack(stickyStack, token, data) {
	if (token !== 'text') {
	stickyStack = stickyStack.filter(notCategory(categoryForCode(data)));
	stickyStack.push({token: token, data: data, category: categoryForCode(data)});
	}

	return stickyStack;
	}

	function Filter(options) {
	options = options \|\| {};

	if (options.colors) {
	options.colors = _.extend(defaults.colors, options.colors);
	}
	this.opts = _.extend({}, defaults, options);
	this.stack = [];
	this.stickyStack = [];
	}

	Filter.prototype = {
	toHtml: function toHtml(input) {
	var _this = this;

	input = typeof input === 'string' ? [input] : input;
	var stack = this.stack;
	var options = this.opts;
	var buf = [];

	this.stickyStack.forEach(function (element) {
	var output = generateOutput(stack, element.token, element.data, options);

	if (output) {
	buf.push(output);
	}
	});

	tokenize(input.join(''), options, function (token, data) {
	var output = generateOutput(stack, token, data, options);

	if (output) {
	buf.push(output);
	}

	if (options.stream) {
	_this.stickyStack = updateStickyStack(_this.stickyStack, token, data);
	}
	});

	if (stack.length) {
	buf.push(resetStyles(stack));
	}

	return buf.join('');
	}
	};

	module.exports = Filter;