ttk-app-core
Version:
enterprise develop framework
235 lines (191 loc) • 7.06 kB
JavaScript
/*jshint curly:true, eqeqeq:true, laxbreak:true, noempty:false */
/*
The MIT License (MIT)
Copyright (c) 2007-2017 Einar Lielmanis, Liam Newman, and contributors.
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.
*/
function OutputLine(parent) {
var _character_count = 0;
// use indent_count as a marker for lines that have preserved indentation
var _indent_count = -1;
var _items = [];
var _empty = true;
this.set_indent = function(level) {
_character_count = parent.baseIndentLength + level * parent.indent_length;
_indent_count = level;
};
this.get_character_count = function() {
return _character_count;
};
this.is_empty = function() {
return _empty;
};
this.last = function() {
if (!this._empty) {
return _items[_items.length - 1];
} else {
return null;
}
};
this.push = function(input) {
_items.push(input);
_character_count += input.length;
_empty = false;
};
this.pop = function() {
var item = null;
if (!_empty) {
item = _items.pop();
_character_count -= item.length;
_empty = _items.length === 0;
}
return item;
};
this.remove_indent = function() {
if (_indent_count > 0) {
_indent_count -= 1;
_character_count -= parent.indent_length;
}
};
this.trim = function() {
while (this.last() === ' ') {
_items.pop();
_character_count -= 1;
}
_empty = _items.length === 0;
};
this.toString = function() {
var result = '';
if (!this._empty) {
if (_indent_count >= 0) {
result = parent.indent_cache[_indent_count];
}
result += _items.join('');
}
return result;
};
}
function Output(indent_string, baseIndentString) {
baseIndentString = baseIndentString || '';
this.indent_cache = [baseIndentString];
this.baseIndentLength = baseIndentString.length;
this.indent_length = indent_string.length;
this.raw = false;
var lines = [];
this.baseIndentString = baseIndentString;
this.indent_string = indent_string;
this.previous_line = null;
this.current_line = null;
this.space_before_token = false;
this.add_outputline = function() {
this.previous_line = this.current_line;
this.current_line = new OutputLine(this);
lines.push(this.current_line);
};
// initialize
this.add_outputline();
this.get_line_number = function() {
return lines.length;
};
// Using object instead of string to allow for later expansion of info about each line
this.add_new_line = function(force_newline) {
if (this.get_line_number() === 1 && this.just_added_newline()) {
return false; // no newline on start of file
}
if (force_newline || !this.just_added_newline()) {
if (!this.raw) {
this.add_outputline();
}
return true;
}
return false;
};
this.get_code = function(end_with_newline, eol) {
var sweet_code = lines.join('\n').replace(/[\r\n\t ]+$/, '');
if (end_with_newline) {
sweet_code += '\n';
}
if (eol !== '\n') {
sweet_code = sweet_code.replace(/[\n]/g, eol);
}
return sweet_code;
};
this.set_indent = function(level) {
// Never indent your first output indent at the start of the file
if (lines.length > 1) {
while (level >= this.indent_cache.length) {
this.indent_cache.push(this.indent_cache[this.indent_cache.length - 1] + this.indent_string);
}
this.current_line.set_indent(level);
return true;
}
this.current_line.set_indent(0);
return false;
};
this.add_raw_token = function(token) {
for (var x = 0; x < token.newlines; x++) {
this.add_outputline();
}
this.current_line.push(token.whitespace_before);
this.current_line.push(token.text);
this.space_before_token = false;
};
this.add_token = function(printable_token) {
this.add_space_before_token();
this.current_line.push(printable_token);
};
this.add_space_before_token = function() {
if (this.space_before_token && !this.just_added_newline()) {
this.current_line.push(' ');
}
this.space_before_token = false;
};
this.remove_indent = function(index) {
var output_length = lines.length;
while (index < output_length) {
lines[index].remove_indent();
index++;
}
};
this.trim = function(eat_newlines) {
eat_newlines = (eat_newlines === undefined) ? false : eat_newlines;
this.current_line.trim(indent_string, baseIndentString);
while (eat_newlines && lines.length > 1 &&
this.current_line.is_empty()) {
lines.pop();
this.current_line = lines[lines.length - 1];
this.current_line.trim();
}
this.previous_line = lines.length > 1 ? lines[lines.length - 2] : null;
};
this.just_added_newline = function() {
return this.current_line.is_empty();
};
this.just_added_blankline = function() {
if (this.just_added_newline()) {
if (lines.length === 1) {
return true; // start of the file and newline = blank
}
var line = lines[lines.length - 2];
return line.is_empty();
}
return false;
};
}
module.exports.Output = Output;