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Add UMD support #11

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339 changes: 177 additions & 162 deletions lib/ansiparse.js
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Original file line number Diff line number Diff line change
@@ -1,184 +1,199 @@
function ansiparse(str) {
//
// I'm terrible at writing parsers.
//
var matchingControl = null,
matchingData = null,
matchingText = '',
ansiState = [],
result = [],
state = {},
eraseChar;
;(function() {

//
// General workflow for this thing is:
// \033\[33mText
// | | |
// | | matchingText
// | matchingData
// matchingControl
//
// In further steps we hope it's all going to be fine. It usually is.
//
function ansiparse(str) {
//
// I'm terrible at writing parsers.
//
var matchingControl = null,
matchingData = null,
matchingText = '',
ansiState = [],
result = [],
state = {},
eraseChar;

//
// Erases a char from the output
//
eraseChar = function () {
var index, text;
if (matchingText.length) {
matchingText = matchingText.substr(0, matchingText.length - 1);
}
else if (result.length) {
index = result.length - 1;
text = result[index].text;
if (text.length === 1) {
//
// A result bit was fully deleted, pop it out to simplify the final output
//
result.pop();
//
// General workflow for this thing is:
// \033\[33mText
// | | |
// | | matchingText
// | matchingData
// matchingControl
//
// In further steps we hope it's all going to be fine. It usually is.
//

//
// Erases a char from the output
//
eraseChar = function () {
var index, text;
if (matchingText.length) {
matchingText = matchingText.substr(0, matchingText.length - 1);
}
else {
result[index].text = text.substr(0, text.length - 1);
else if (result.length) {
index = result.length - 1;
text = result[index].text;
if (text.length === 1) {
//
// A result bit was fully deleted, pop it out to simplify the final output
//
result.pop();
}
else {
result[index].text = text.substr(0, text.length - 1);
}
}
}
};
};

for (var i = 0; i < str.length; i++) {
if (matchingControl != null) {
if (matchingControl == '\033' && str[i] == '\[') {
//
// We've matched full control code. Lets start matching formating data.
//
for (var i = 0; i < str.length; i++) {
if (matchingControl != null) {
if (matchingControl == '\033' && str[i] == '\[') {
//
// We've matched full control code. Lets start matching formating data.
//

//
// "emit" matched text with correct state
//
if (matchingText) {
state.text = matchingText;
result.push(state);
state = {};
matchingText = "";
}
//
// "emit" matched text with correct state
//
if (matchingText) {
state.text = matchingText;
result.push(state);
state = {};
matchingText = "";
}

matchingControl = null;
matchingData = '';
}
else {
//
// We failed to match anything - most likely a bad control code. We
// go back to matching regular strings.
//
matchingText += matchingControl + str[i];
matchingControl = null;
matchingControl = null;
matchingData = '';
}
else {
//
// We failed to match anything - most likely a bad control code. We
// go back to matching regular strings.
//
matchingText += matchingControl + str[i];
matchingControl = null;
}
continue;
}
continue;
}
else if (matchingData != null) {
if (str[i] == ';') {
//
// `;` separates many formatting codes, for example: `\033[33;43m`
// means that both `33` and `43` should be applied.
//
// TODO: this can be simplified by modifying state here.
//
ansiState.push(matchingData);
matchingData = '';
else if (matchingData != null) {
if (str[i] == ';') {
//
// `;` separates many formatting codes, for example: `\033[33;43m`
// means that both `33` and `43` should be applied.
//
// TODO: this can be simplified by modifying state here.
//
ansiState.push(matchingData);
matchingData = '';
}
else if (str[i] == 'm') {
//
// `m` finished whole formatting code. We can proceed to matching
// formatted text.
//
ansiState.push(matchingData);
matchingData = null;
matchingText = '';

//
// Convert matched formatting data into user-friendly state object.
//
// TODO: DRY.
//
ansiState.forEach(function (ansiCode) {
if (ansiparse.foregroundColors[ansiCode]) {
state.foreground = ansiparse.foregroundColors[ansiCode];
}
else if (ansiparse.backgroundColors[ansiCode]) {
state.background = ansiparse.backgroundColors[ansiCode];
}
else if (ansiCode == 39) {
delete state.foreground;
}
else if (ansiCode == 49) {
delete state.background;
}
else if (ansiparse.styles[ansiCode]) {
state[ansiparse.styles[ansiCode]] = true;
}
else if (ansiCode == 22) {
state.bold = false;
}
else if (ansiCode == 23) {
state.italic = false;
}
else if (ansiCode == 24) {
state.underline = false;
}
});
ansiState = [];
}
else {
matchingData += str[i];
}
continue;
}
else if (str[i] == 'm') {
//
// `m` finished whole formatting code. We can proceed to matching
// formatted text.
//
ansiState.push(matchingData);
matchingData = null;
matchingText = '';

//
// Convert matched formatting data into user-friendly state object.
//
// TODO: DRY.
//
ansiState.forEach(function (ansiCode) {
if (ansiparse.foregroundColors[ansiCode]) {
state.foreground = ansiparse.foregroundColors[ansiCode];
}
else if (ansiparse.backgroundColors[ansiCode]) {
state.background = ansiparse.backgroundColors[ansiCode];
}
else if (ansiCode == 39) {
delete state.foreground;
}
else if (ansiCode == 49) {
delete state.background;
}
else if (ansiparse.styles[ansiCode]) {
state[ansiparse.styles[ansiCode]] = true;
}
else if (ansiCode == 22) {
state.bold = false;
}
else if (ansiCode == 23) {
state.italic = false;
}
else if (ansiCode == 24) {
state.underline = false;
}
});
ansiState = [];
if (str[i] == '\033') {
matchingControl = str[i];
}
else if (str[i] == '\u0008') {
eraseChar();
}
else {
matchingData += str[i];
matchingText += str[i];
}
continue;
}

if (str[i] == '\033') {
matchingControl = str[i];
}
else if (str[i] == '\u0008') {
eraseChar();
}
else {
matchingText += str[i];
if (matchingText) {
state.text = matchingText + (matchingControl ? matchingControl : '');
result.push(state);
}
return result;
}

if (matchingText) {
state.text = matchingText + (matchingControl ? matchingControl : '');
result.push(state);
}
return result;
}

ansiparse.foregroundColors = {
'30': 'black',
'31': 'red',
'32': 'green',
'33': 'yellow',
'34': 'blue',
'35': 'magenta',
'36': 'cyan',
'37': 'white',
'90': 'grey'
};
ansiparse.foregroundColors = {
'30': 'black',
'31': 'red',
'32': 'green',
'33': 'yellow',
'34': 'blue',
'35': 'magenta',
'36': 'cyan',
'37': 'white',
'90': 'grey'
};

ansiparse.backgroundColors = {
'40': 'black',
'41': 'red',
'42': 'green',
'43': 'yellow',
'44': 'blue',
'45': 'magenta',
'46': 'cyan',
'47': 'white'
};
ansiparse.backgroundColors = {
'40': 'black',
'41': 'red',
'42': 'green',
'43': 'yellow',
'44': 'blue',
'45': 'magenta',
'46': 'cyan',
'47': 'white'
};

ansiparse.styles = {
'1': 'bold',
'3': 'italic',
'4': 'underline'
};
ansiparse.styles = {
'1': 'bold',
'3': 'italic',
'4': 'underline'
};

module.exports = ansiparse;
// export
if (typeof exports !== 'undefined') {
if (typeof module !== 'undefined' && module.exports) {
exports = module.exports = ansiparse;
}
exports.ansiparse = ansiparse;
} else if (typeof define === 'function' && define.amd) {
define(function() { return ansiparse; })
} else {
this.ansiparse = ansiparse;
}

}).call(function () {
return this || (typeof window !== 'undefined' ? window : global);
}());