1623 lines
34 KiB
JavaScript
1623 lines
34 KiB
JavaScript
/**
|
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* Tput for node.js
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* Copyright (c) 2013, Christopher Jeffrey (MIT License)
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* https://github.com/chjj/blessed
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*/
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// Resources:
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// $ man term
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// $ man terminfo
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// http://invisible-island.net/ncurses/man/term.5.html
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// https://en.wikipedia.org/wiki/Terminfo
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/**
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* Modules
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*/
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var assert = require('assert')
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, path = require('path')
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, fs = require('fs');
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/**
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* Tput
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*/
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function Tput(options) {
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if (!(this instanceof Tput)) {
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return new Tput(options);
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}
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if (typeof options === 'string') {
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options = { term: options };
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}
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this.options = options;
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this.term = options.term;
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this.data = null;
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this.info = {};
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this.debug = options.debug;
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this.padding = options.padding;
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this.readTerminfo();
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this.compile();
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}
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Tput.prototype.readTerminfo = function() {
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if (this.data) return;
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var file = path.resolve(
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'/usr/share/terminfo',
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path.basename(this.term[0]),
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path.basename(this.term)
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);
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this.data = fs.readFileSync(file);
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this.info = this.parseTerminfo(this.data);
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return this.info;
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};
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/**
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* Terminfo Parser
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* All shorts are little-endian
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*/
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Tput.prototype.parseTerminfo = function(data) {
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var info = {}
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, l = data.length
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, i = 0
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, v
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, o;
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||
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var h = info.header = {
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||
dataSize: data.length,
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headerSize: 12,
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magicNumber: (data[1] << 8) | data[0],
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||
namesSize: (data[3] << 8) | data[2],
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boolCount: (data[5] << 8) | data[4],
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numCount: (data[7] << 8) | data[6],
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strCount: (data[9] << 8) | data[8],
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strTableSize: (data[11] << 8) | data[10]
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};
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||
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h.total = h.headerSize
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+ h.namesSize
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+ h.boolCount
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+ h.numCount * 2
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+ h.strCount * 2
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+ h.strTableSize;
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i = h.headerSize;
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// Names Section
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var names = data.toString('ascii', i, i + h.namesSize - 1)
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, parts = names.split('|')
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, name = parts[0]
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, desc = parts.pop();
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info.name = name;
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info.names = parts;
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info.desc = desc;
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i += h.namesSize - 1;
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// Names is nul-terminated.
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assert.equal(data[i], 0);
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i++;
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// Booleans Section
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// One byte for each flag
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// Same order as <term.h>
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info.bools = {};
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l = i + h.boolCount;
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o = 0;
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for (; i < l; i++) {
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v = Tput.bools[o++] || 'OFFSET: ' + (o - 1);
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info.bools[v] = !!data[i];
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}
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// Null byte in between to make sure numbers begin on an even byte.
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if (i % 2) {
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assert.equal(data[i], 0);
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i++;
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}
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// Numbers Section
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info.numbers = {};
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l = i + h.numCount * 2;
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o = 0;
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for (; i < l; i += 2) {
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v = Tput.numbers[o++] || 'OFFSET: ' + (o - 1);
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if (data[i + 1] === 0377 && data[i] === 0377) {
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info.numbers[v] = -1;
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} else {
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info.numbers[v] = (data[i + 1] << 8) | data[i];
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||
}
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||
}
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// Strings Section
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||
info.strings = {};
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l = i + h.strCount * 2;
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o = 0;
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for (; i < l; i += 2) {
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v = Tput.strings[o++] || 'OFFSET: ' + (o - 1);
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if (data[i + 1] === 0377 && data[i] === 0377) {
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info.strings[v] = -1;
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||
} else {
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||
info.strings[v] = (data[i + 1] << 8) | data[i];
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||
}
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||
}
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||
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||
// String Table
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||
Object.keys(info.strings).forEach(function(key) {
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||
if (info.strings[key] === -1) {
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||
delete info.strings[key];
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||
return;
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||
}
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||
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||
var s = i + info.strings[key]
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, j = s;
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||
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while (data[j]) j++;
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if (s >= data.length || j > data.length) {
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||
delete info.strings[key];
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||
return;
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||
}
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info.strings[key] = data.toString('ascii', s, j);
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||
});
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||
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// Extended Header
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||
if (this.extended) {
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||
i += h.strTableSize + 1; // offset?
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l = data.length;
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if (i < l) {
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||
info.extended = this.parseExtended(data.slice(i));
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||
Object.keys(info.extended).forEach(function(key) {
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||
info[key].extended = info.extended[key];
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||
});
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delete info.extended;
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||
}
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}
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return info;
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};
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Tput.prototype.parseExtended = function(data) {
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var info = {}
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, l = data.length
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, i = 0
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, v
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, o;
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var h = info.header = {
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||
dataSize: data.length,
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||
headerSize: 10,
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boolCount: (data[i + 1] << 8) | data[i + 0],
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||
numCount: (data[i + 3] << 8) | data[i + 2],
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||
strCount: (data[i + 5] << 8) | data[i + 4],
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||
strTableSize: (data[i + 7] << 8) | data[i + 6],
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lastStrTableOffset: (data[i + 9] << 8) | data[i + 8]
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||
};
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||
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h.total = h.headerSize
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||
+ h.boolCount
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+ h.numCount * 2
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+ h.strCount * 2
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+ h.strTableSize;
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i = h.headerSize;
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// Booleans Section
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||
// One byte for each flag
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||
// Same order as <term.h>
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info.bools = {};
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l = i + h.boolCount;
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o = 36 + 1;
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||
for (; i < l; i++) {
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v = Tput.bools[o++] || 'OFFSET: ' + (o - 1);
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info.bools[v] = !!data[i];
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||
}
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||
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||
// Null byte in between to make sure numbers begin on an even byte.
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||
if (i % 2) {
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assert.equal(data[i], 0);
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i++;
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}
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||
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||
// Numbers Section
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||
info.numbers = {};
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||
l = i + h.numCount * 2;
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o = 32 + 1;
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for (; i < l; i += 2) {
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v = Tput.numbers[o++] || 'OFFSET: ' + (o - 1);
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if (data[i + 1] === 0377 && data[i] === 0377) {
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info.numbers[v] = -1;
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} else {
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info.numbers[v] = (data[i + 1] << 8) | data[i];
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||
}
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||
}
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||
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// Strings Section
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||
info.strings = {};
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||
l = i + h.strCount * 2;
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o = 393 + 1;
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||
for (; i < l; i += 2) {
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||
v = Tput.strings[o++] || 'OFFSET: ' + (o - 1);
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if (data[i + 1] === 0377 && data[i] === 0377) {
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||
info.strings[v] = -1;
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||
} else {
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||
info.strings[v] = (data[i + 1] << 8) | data[i];
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||
}
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||
}
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||
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||
// String Table
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||
Object.keys(info.strings).forEach(function(key) {
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||
if (info.strings[key] === -1) {
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delete info.strings[key];
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||
return;
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||
}
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||
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||
var s = i + info.strings[key]
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||
, j = s;
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||
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||
while (data[j]) j++;
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||
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||
if (s >= data.length || j > data.length) {
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||
delete info.strings[key];
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||
return;
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||
}
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||
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||
info.strings[key] = data.toString('ascii', s, j);
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||
});
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||
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||
return info;
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||
};
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||
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||
/**
|
||
* Compiler - terminfo cap->javascript
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||
*/
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||
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||
Tput.prototype.compile = function(key) {
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||
var self = this
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||
, info = this.info;
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||
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if (this.debug) {
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console.log(this.info);
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||
}
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||
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||
this.methods = {};
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||
this.info.all = {};
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||
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||
Object.keys(info.bools).forEach(function(key) {
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info.all[key] = info.bools[key];
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||
});
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||
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Object.keys(info.numbers).forEach(function(key) {
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||
info.all[key] = info.numbers[key];
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||
});
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||
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||
Object.keys(info.strings).forEach(function(key) {
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||
info.all[key] = info.strings[key];
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||
});
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||
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||
Object.keys(info.all).forEach(function(key) {
|
||
if (self.debug) {
|
||
console.log('Compiling %s: %s', key, JSON.stringify(info.all[key]));
|
||
}
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||
self.methods[key] = self._compile(info.all[key]);
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||
});
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||
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||
Tput.bools.forEach(function(key) {
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if (self.methods[key] == null) self.methods[key] = false;
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||
});
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Tput.numbers.forEach(function(key) {
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if (self.methods[key] == null) self.methods[key] = -1;
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||
});
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Tput.strings.forEach(function(key) {
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if (!self.methods[key]) self.methods[key] = noop;
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||
});
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||
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Object.keys(this.methods).forEach(function(key) {
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||
var alias = Tput.alias[key];
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if (alias) {
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||
if (!Array.isArray(alias)) alias = [alias];
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||
alias.forEach(function(alias) {
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||
self.methods[alias] = self.methods[key];
|
||
});
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||
}
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||
});
|
||
|
||
// Tput.bools.concat(Tput.numbers).concat(Tput.strings).forEach(function(key) {
|
||
// if (!self.methods[key]) self.methods[key] = noop;
|
||
// });
|
||
|
||
Object.keys(self.methods).forEach(function(key) {
|
||
if (typeof self.methods[key] !== 'function') {
|
||
self[key] = self.methods[key];
|
||
return;
|
||
}
|
||
self[key] = function() {
|
||
var args = Array.prototype.slice.call(arguments);
|
||
return self.methods[key].call(self, args);
|
||
};
|
||
});
|
||
};
|
||
|
||
Tput.prototype._compile = function(val) {
|
||
var self = this;
|
||
|
||
switch (typeof val) {
|
||
case 'boolean':
|
||
return val;
|
||
// return function() {
|
||
// return val ? 'true' : 'false';
|
||
// };
|
||
case 'number':
|
||
return val;
|
||
// return function() {
|
||
// return val === -1 ? null : val;
|
||
// };
|
||
case 'string':
|
||
break;
|
||
default:
|
||
return function() {};
|
||
}
|
||
|
||
var code = 'var v, dyn = {}, stat = {}, stack = [], out = [];'
|
||
, buff = ''
|
||
, cap;
|
||
|
||
var ch
|
||
, op
|
||
, i
|
||
, v
|
||
|
||
var then
|
||
, els
|
||
, end;
|
||
|
||
function clear() {
|
||
if (buff) {
|
||
echo(JSON.stringify(buff).replace(/\\u001b/g, '\\x1b'));
|
||
buff = '';
|
||
}
|
||
}
|
||
|
||
function read(regex) {
|
||
cap = regex.exec(val);
|
||
if (!cap) return;
|
||
val = val.substring(cap[0].length);
|
||
ch = op = i = v = cap[1];
|
||
clear();
|
||
return cap;
|
||
}
|
||
|
||
function stmt(c) {
|
||
if (code[code.length-1] === ',') {
|
||
code = code.slice(0, -1);
|
||
}
|
||
code += c;
|
||
// code += ';' + c;
|
||
}
|
||
|
||
function expr(c) {
|
||
code += c + ',';
|
||
// code += '(' + c + '),';
|
||
}
|
||
|
||
function echo(c) {
|
||
expr('out.push(' + c + ')');
|
||
}
|
||
|
||
function print(c) {
|
||
echo('"' + c + '"');
|
||
}
|
||
|
||
function push(c) {
|
||
expr('(stack.push(v = ' + c + '), v)');
|
||
}
|
||
|
||
function pop(c) {
|
||
expr((c ? c + ' = ' : '') + 'stack.pop()');
|
||
}
|
||
|
||
while (val) {
|
||
// '\e' -> ^[
|
||
if (read(/^\\e/i)) {
|
||
print('\\x1b');
|
||
continue;
|
||
}
|
||
|
||
// '^A' -> ^A
|
||
if (read(/^\^(.)/i)) {
|
||
ch = ch.toUpperCase(); // ?
|
||
switch (ch) {
|
||
case '@':
|
||
ch = '\\x00';
|
||
break;
|
||
case '[':
|
||
ch = '\\x1b';
|
||
break;
|
||
case '\\':
|
||
ch = '\\x1c';
|
||
break;
|
||
case ']':
|
||
ch = '\\x1d';
|
||
break;
|
||
case '^':
|
||
ch = '\\x1e';
|
||
break;
|
||
case '_':
|
||
ch = '\\x1f';
|
||
break;
|
||
case '?':
|
||
ch = '\\x7f';
|
||
break;
|
||
default:
|
||
if (ch >= 'A' && ch <= 'Z') {
|
||
ch = ch.charCodeAt(0) - 64;
|
||
ch = ch.toString(16);
|
||
if (ch.length < 2) ch = '0' + ch;
|
||
ch = '\\x' + ch;
|
||
} else {
|
||
ch = cap[0];
|
||
}
|
||
break;
|
||
}
|
||
print(ch);
|
||
continue;
|
||
}
|
||
|
||
// '\n' -> \n
|
||
// '\r' -> \r
|
||
// '\0' -> \200 (special case)
|
||
if (read(/^\\([nlrtbfs\^\\,:0])/)) {
|
||
switch (ch) {
|
||
case 'n':
|
||
ch = '\\n';
|
||
break;
|
||
case 'l':
|
||
ch = '';
|
||
break;
|
||
case 'r':
|
||
ch = '\\r';
|
||
break;
|
||
case 't':
|
||
ch = '\\t';
|
||
break;
|
||
case 'b':
|
||
ch = '\\x08';
|
||
break;
|
||
case 'f':
|
||
ch = '\\x0c';
|
||
break;
|
||
case 's':
|
||
ch = ' ';
|
||
break;
|
||
case '^':
|
||
ch = '^';
|
||
break;
|
||
case '\\':
|
||
ch = '\\\\';
|
||
break;
|
||
case ',':
|
||
ch = ',';
|
||
break;
|
||
case ':':
|
||
ch = ':';
|
||
break;
|
||
case '0':
|
||
//ch = '\\0';
|
||
ch = '\\200';
|
||
break;
|
||
//case 'v':
|
||
// ch = '\\x0b';
|
||
// break;
|
||
//case 'a':
|
||
// ch = '\\x07':
|
||
// break;
|
||
default:
|
||
ch = '';
|
||
break;
|
||
}
|
||
print(ch);
|
||
continue;
|
||
}
|
||
|
||
// 3 octal digits -> character
|
||
if (read(/^\\(\d{3})/)) {
|
||
print('\\' + ch);
|
||
continue;
|
||
}
|
||
|
||
// $<5> -> padding
|
||
// e.g. flash_screen: '\u001b[?5h$<100/>\u001b[?5l',
|
||
if (read(/^\$<(\d+)([*\/]{0,2})>/)) {
|
||
if (this.padding) print(cap[0]);
|
||
continue;
|
||
}
|
||
|
||
// %% outputs `%'
|
||
if (read(/^%%/)) {
|
||
print('%');
|
||
continue;
|
||
}
|
||
|
||
// %[[:]flags][width[.precision]][doxXs]
|
||
// as in printf, flags are [-+#] and space. Use a `:' to allow the
|
||
// next character to be a `-' flag, avoiding interpreting "%-" as an
|
||
// operator.
|
||
// if (read(/^%(:-|[+# ])?(\d+(?:\.\d+)?)?([doxXs])/)) {
|
||
if (read(/^%((?::-|[+# ]){1,4})?(\d+(?:\.\d+)?)?([doxXs])/)) {
|
||
// echo('sprintf("'+ cap[0].replace(':-', '-') + '", stack.pop())');
|
||
// var flag = cap[1], width = cap[2], type = cap[3];
|
||
echo('stack.pop()');
|
||
continue;
|
||
}
|
||
|
||
// %c print pop() like %c in printf
|
||
if (read(/^%c/)) {
|
||
// echo('sprintf("%c", stack.pop())');
|
||
echo('stack.pop()');
|
||
continue;
|
||
}
|
||
|
||
// %d print pop()
|
||
// "Print (e.g., "%d") is a special case."
|
||
//if (read(/^%d/)) {
|
||
// echo('stack.pop()');
|
||
// continue;
|
||
//}
|
||
|
||
// %s print pop() like %s in printf
|
||
//if (read(/^%s/)) {
|
||
// echo('stack.pop()');
|
||
// continue;
|
||
//}
|
||
|
||
// %p[1-9]
|
||
// push i'th parameter
|
||
if (read(/^%p([1-9])/)) {
|
||
expr('(stack.push(v = params[' + (i - 1) + ']), v)');
|
||
continue;
|
||
}
|
||
|
||
// %P[a-z]
|
||
// set dynamic variable [a-z] to pop()
|
||
if (read(/^%P([a-z])/)) {
|
||
expr('dyn.' + v + ' = stack.pop()');
|
||
continue;
|
||
}
|
||
|
||
// %g[a-z]
|
||
// get dynamic variable [a-z] and push it
|
||
if (read(/^%g([a-z])/)) {
|
||
expr('(stack.push(dyn.' + v + '), dyn.' + v + ')');
|
||
continue;
|
||
}
|
||
|
||
// %P[A-Z]
|
||
// set static variable [a-z] to pop()
|
||
if (read(/^%P([A-Z])/)) {
|
||
expr('stat.' + v + ' = stack.pop()');
|
||
continue;
|
||
}
|
||
|
||
// %g[A-Z]
|
||
// get static variable [a-z] and push it
|
||
|
||
// The terms "static" and "dynamic" are misleading. Historically,
|
||
// these are simply two different sets of variables, whose values are
|
||
// not reset between calls to tparm. However, that fact is not
|
||
// documented in other implementations. Relying on it will adversely
|
||
// impact portability to other implementations.
|
||
|
||
if (read(/^%g([A-Z])/)) {
|
||
expr('(stack.push(v = stat.' + v + '), v)');
|
||
continue;
|
||
}
|
||
|
||
// %'c' char constant c
|
||
if (read(/^%'(\w)'/)) {
|
||
expr('(stack.push(v = "' + ch + '", v)');
|
||
continue;
|
||
}
|
||
|
||
// %{nn}
|
||
// integer constant nn
|
||
if (read(/^%\{(\d+)\}/)) {
|
||
expr('(stack.push(v = ' + ch + '), v)');
|
||
continue;
|
||
}
|
||
|
||
// %l push strlen(pop)
|
||
if (read(/^%l/)) {
|
||
expr('(stack.push(v = stack.pop().length), v)');
|
||
continue;
|
||
}
|
||
|
||
// %+ %- %* %/ %m
|
||
// arithmetic (%m is mod): push(pop() op pop())
|
||
// %& %| %^
|
||
// bit operations (AND, OR and exclusive-OR): push(pop() op pop())
|
||
// %= %> %<
|
||
// logical operations: push(pop() op pop())
|
||
if (read(/^%([+\-*\/m&|\^=><])/)) {
|
||
if (op === '=') op = '===';
|
||
else if (op === 'm') op = '%';
|
||
expr('(stack.push(v = (stack.pop() ' + op + ' stack.pop())), v)');
|
||
continue;
|
||
}
|
||
|
||
// %A, %O
|
||
// logical AND and OR operations (for conditionals)
|
||
if (read(/^%([AO])/)) {
|
||
stmt(op === ' A ' ? ' && ' : ' || ');
|
||
continue;
|
||
}
|
||
|
||
// %! %~
|
||
// unary operations (logical and bit complement): push(op pop())
|
||
if (read(/^%([!~])/)) {
|
||
expr('(stack.push(v = ' + op + 'stack.pop()), v)');
|
||
continue;
|
||
}
|
||
|
||
// %i add 1 to first two parameters (for ANSI terminals)
|
||
if (read(/^%i/)) {
|
||
expr('(params[0]++, params[1]++)');
|
||
continue;
|
||
}
|
||
|
||
// %? expr %t thenpart %e elsepart %;
|
||
// This forms an if-then-else. The %e elsepart is optional. Usually
|
||
// the %? expr part pushes a value onto the stack, and %t pops it from
|
||
// the stack, testing if it is nonzero (true). If it is zero (false),
|
||
// control passes to the %e (else) part.
|
||
|
||
// It is possible to form else-if's a la Algol 68:
|
||
// %? c1 %t b1 %e c2 %t b2 %e c3 %t b3 %e c4 %t b4 %e %;
|
||
|
||
// where ci are conditions, bi are bodies.
|
||
|
||
// Use the -f option of tic or infocmp to see the structure of
|
||
// if-then-else's. Some strings, e.g., sgr can be very complicated when
|
||
// written on one line. The -f option splits the string into lines with
|
||
// the parts indented.
|
||
if (read(/^%\?/)) {
|
||
stmt(';if (');
|
||
continue;
|
||
}
|
||
|
||
if (read(/^%t/)) {
|
||
stmt(') {');
|
||
continue;
|
||
}
|
||
|
||
if (read(/^%e/)) {
|
||
then = val.indexOf('%t');
|
||
els = val.indexOf('%e');
|
||
end = val.indexOf('%;');
|
||
// Terminfo does elseif's like
|
||
// this: %?[expr]%t...%e[expr]%t...%;
|
||
if (then < end && then < els) {
|
||
stmt('} else if (');
|
||
} else {
|
||
stmt('} else {');
|
||
}
|
||
continue;
|
||
}
|
||
|
||
if (read(/^%;/)) {
|
||
stmt('}');
|
||
continue;
|
||
}
|
||
|
||
// Binary operations are in postfix form with the operands in the usual
|
||
// order. That is, to get x-5 one would use "%gx%{5}%-". %P and %g vari‐
|
||
// ables are persistent across escape-string evaluations.
|
||
|
||
// Consider the HP2645, which, to get to row 3 and column 12, needs to be
|
||
// sent \E&a12c03Y padded for 6 milliseconds. Note that the order of the
|
||
// rows and columns is inverted here, and that the row and column are
|
||
// printed as two digits. Thus its cup capability is
|
||
// “cup=6\E&%p2%2dc%p1%2dY”.
|
||
|
||
// The Microterm ACT-IV needs the current row and column sent
|
||
// preceded by a ^T, with the row and column simply encoded in
|
||
// binary, “cup=^T%p1%c%p2%c”. Terminals which use “%c” need to be able
|
||
// to backspace the cursor (cub1), and to move the cursor up one line
|
||
// on the screen (cuu1). This is necessary because it is not always safe
|
||
// to transmit \n ^D and \r, as the system may change or discard them.
|
||
// (The library routines dealing with terminfo set tty modes so that tabs
|
||
// are never expanded, so \t is safe to send. This turns out to be
|
||
// essential for the Ann Arbor 4080.)
|
||
|
||
// A final example is the LSI ADM-3a, which uses row and column offset
|
||
// by a blank character, thus “cup=\E=%p1%' '%+%c%p2%' '%+%c”. After
|
||
// sending `\E=', this pushes the first parameter, pushes the ASCII value
|
||
// for a space (32), adds them (pushing the sum on the stack in place of
|
||
// the two previous values) and outputs that value as a character.
|
||
// Then the same is done for the second parameter. More complex
|
||
// arithmetic is possible using the stack.
|
||
|
||
buff += val[0];
|
||
val = val.substring(1);
|
||
}
|
||
|
||
clear();
|
||
|
||
stmt(';return out.join("");');
|
||
|
||
// Optimize
|
||
// ... out.push("foo");return out.join("");
|
||
// To:
|
||
// return "foo";
|
||
v = code.split(/out = \[\];out\.push\(|\);return out/);
|
||
if (v.length === 3 && /^"[^"]+"$/.test(v[1])) {
|
||
code = 'return ' + v[1] + ';';
|
||
}
|
||
|
||
if (this.debug) {
|
||
v = code
|
||
.replace(/\x1b/g, '\\x1b')
|
||
.replace(/\r/g, '\\r')
|
||
.replace(/\n/g, '\\n');
|
||
process.stdout.write(v + '\n');
|
||
}
|
||
|
||
try {
|
||
return new Function('params', code);
|
||
} catch (e) {
|
||
e.stack = e.stack.replace(/\x1b/g, '\\x1b');
|
||
throw e;
|
||
}
|
||
};
|
||
|
||
Tput.prototype._parsePadding = function(code, print, done) {
|
||
if (!this.padding) {
|
||
print(code);
|
||
return done();
|
||
}
|
||
|
||
var parts = code.split(/(?=\$<\d+[*\/]{0,2}>)/)
|
||
, i = 0;
|
||
|
||
// if (!parts[0]) parts.shift();
|
||
|
||
(function next() {
|
||
if (i === parts.length) {
|
||
return done();
|
||
}
|
||
|
||
var part = parts[i++]
|
||
, padding = /^\$<(\d+)([*\/]{0,2})>/.exec(part);
|
||
|
||
if (!padding) {
|
||
print(part);
|
||
return next();
|
||
}
|
||
|
||
part = part.substring(padding[0].length);
|
||
|
||
// A `*' indicates that the padding required is proportional to the number
|
||
// of lines affected by the operation, and the amount given is the
|
||
// per-affected-unit padding required. (In the case of insert character,
|
||
// the factor is still the number of lines affected.) Normally, padding is
|
||
// advisory if the device has the xon capability; it is used for cost
|
||
// computation but does not trigger delays.
|
||
if (~padding[2].indexOf('*')) {
|
||
;
|
||
}
|
||
|
||
// A `/' suffix indicates that the padding is mandatory and forces a
|
||
// delay of the given number of milliseconds even on devices for which xon
|
||
// is present to indicate flow control.
|
||
if (~padding[2].indexOf('/')) {
|
||
;
|
||
}
|
||
|
||
return setTimeout(function() {
|
||
print(part);
|
||
return next();
|
||
}, +padding[1]);
|
||
})();
|
||
};
|
||
|
||
Tput.prototype.setupAliases = function(info) {
|
||
var self = this;
|
||
['bools', 'numbers', 'strings'].forEach(function(name) {
|
||
var obj = info[name];
|
||
Object.keys(obj).forEach(function(key) {
|
||
var alias = Tput.alias[key];
|
||
if (alias) {
|
||
if (!Array.isArray(alias)) alias = [alias];
|
||
alias.forEach(function(alias) {
|
||
obj[alias] = obj[key];
|
||
});
|
||
}
|
||
});
|
||
});
|
||
};
|
||
|
||
/**
|
||
* Termcap
|
||
*/
|
||
|
||
Tput.prototype.readTermcap = function() {
|
||
if (this.termcap) return;
|
||
|
||
this.termcap = {};
|
||
|
||
this.termcap.data = process.env.TERMCAP
|
||
|| fs.readFileSync('/etc/termcap', 'ascii');
|
||
|
||
this.termcap.terms = this.parseTermcap(this.termcap.data);
|
||
this.termcap.info = this.termcap.terms[this.term];
|
||
|
||
return this.termcap;
|
||
};
|
||
|
||
/**
|
||
* Termcap Parser
|
||
* http://en.wikipedia.org/wiki/Termcap
|
||
* http://www.gnu.org/software/termutils/manual/termcap-1.3/html_mono/termcap.html
|
||
* http://www.gnu.org/software/termutils/manual/termcap-1.3/html_mono/termcap.html#SEC17
|
||
* http://tldp.org/HOWTO/Text-Terminal-HOWTO.html#toc16
|
||
* man termcap
|
||
*/
|
||
|
||
// Example:
|
||
// vt102|dec vt102:\
|
||
// :do=^J:co#80:li#24:cl=50\E[;H\E[2J:\
|
||
// :le=^H:bs:cm=5\E[%i%d;%dH:nd=2\E[C:up=2\E[A:\
|
||
// :ce=3\E[K:cd=50\E[J:so=2\E[7m:se=2\E[m:us=2\E[4m:ue=2\E[m:\
|
||
// :md=2\E[1m:mr=2\E[7m:mb=2\E[5m:me=2\E[m:is=\E[1;24r\E[24;1H:\
|
||
// :rs=\E>\E[?3l\E[?4l\E[?5l\E[?7h\E[?8h:ks=\E[?1h\E=:ke=\E[?1l\E>:\
|
||
// :ku=\EOA:kd=\EOB:kr=\EOC:kl=\EOD:kb=^H:\
|
||
// :ho=\E[H:k1=\EOP:k2=\EOQ:k3=\EOR:k4=\EOS:pt:sr=5\EM:vt#3:\
|
||
// :sc=\E7:rc=\E8:cs=\E[%i%d;%dr:vs=\E[?7l:ve=\E[?7h:\
|
||
// :mi:al=\E[L:dc=\E[P:dl=\E[M:ei=\E[4l:im=\E[4h:
|
||
|
||
Tput.prototype.parseTermcap = function(data) {
|
||
var terms = {}
|
||
, term
|
||
, entries
|
||
, fields
|
||
, field
|
||
, names
|
||
, i
|
||
, j
|
||
, k;
|
||
|
||
// remove escaped newlines
|
||
data = data.replace(/\\\n[ \t]*/g, '');
|
||
|
||
// remove comments
|
||
data = data.replace(/^#[^\n]+/gm, '');
|
||
|
||
// split entries
|
||
entries = data.trim().split(/\n+/);
|
||
|
||
for (i = 0; i < entries.length; i++) {
|
||
fields = entries[i].split(/:+/);
|
||
for (j = 0; j < fields.length; j++) {
|
||
field = fields[j].trim();
|
||
if (!field) continue;
|
||
|
||
if (j === 0) {
|
||
names = field.split('|');
|
||
term = {
|
||
name: names[0],
|
||
names: names,
|
||
desc: names.pop()
|
||
};
|
||
|
||
k = names.length;
|
||
while (k--) terms[names[k]] = term;
|
||
|
||
term.bools = {};
|
||
term.numbers = {};
|
||
term.strings = {};
|
||
|
||
continue;
|
||
}
|
||
|
||
if (~field.indexOf('=')) {
|
||
parts = field.split('=');
|
||
term.strings[parts[0]] = parts.slice(1).join('=');
|
||
} else if (~field.indexOf('#')) {
|
||
parts = field.split('#');
|
||
term.numbers[parts[0]] = +parts.slice(1).join('#');
|
||
} else {
|
||
term.bools[field] = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
return terms;
|
||
};
|
||
|
||
/**
|
||
* Termcap Compiler
|
||
* man termcap
|
||
*/
|
||
|
||
Tput.prototype.compileTermcap = function() {
|
||
};
|
||
|
||
Tput.prototype._compileTermcap = function() {
|
||
};
|
||
|
||
/**
|
||
* Helpers
|
||
*/
|
||
|
||
function noop() {
|
||
return '';
|
||
}
|
||
|
||
function merge(a, b) {
|
||
Object.keys(b).forEach(function(key) {
|
||
a[key] = b[key];
|
||
});
|
||
return a;
|
||
}
|
||
|
||
/**
|
||
* sprintf
|
||
* http://www.cplusplus.com/reference/cstdio/printf/
|
||
*/
|
||
|
||
function sprintf(src) {
|
||
var params = Array.prototype.slice.call(arguments, 1)
|
||
, rule = /%([\-+# ]{1,4})?(\d+(?:\.\d+)?)?([doxXsc])/g
|
||
, i = 0;
|
||
|
||
return src.replace(rule, function(_, flag, width, type) {
|
||
var flags = flag.split('')
|
||
, param = params[i++] || ''
|
||
, initial = param
|
||
, width = +width
|
||
, opt = {}
|
||
, pre = '';
|
||
|
||
switch (type) {
|
||
case 'd': // signed int
|
||
param = (+param).toString(10);
|
||
break;
|
||
case 'o': // unsigned octal
|
||
param = (+param).toString(8);
|
||
break;
|
||
case 'x': // unsigned hex int
|
||
param = (+param).toString(16);
|
||
break;
|
||
case 'X': // unsigned hex int uppercase
|
||
param = (+param).toString(16).toUppercase();
|
||
break;
|
||
case 's': // string
|
||
break;
|
||
case 'c': // char
|
||
// Should return here?
|
||
param = isFinite(param)
|
||
? String.fromCharCode(param)
|
||
: param[0];
|
||
break;
|
||
}
|
||
|
||
flags.forEach(function(flag) {
|
||
switch (flag) {
|
||
// left-justify by width
|
||
case '-':
|
||
opt.left = true;
|
||
break;
|
||
// always precede numbers with their signs
|
||
case '+':
|
||
opt.signs = true;
|
||
break;
|
||
// used with o, x, X - value is preceded with 0, 0x, or 0X respectively.
|
||
// used with a, A, e, E, f, F, g, G - forces written output to contain
|
||
// a decimal point even if no more digits follow
|
||
case '#':
|
||
opt.hexpoint = true;
|
||
break;
|
||
// if no sign is going to be written, black space in front of the value
|
||
case ' ':
|
||
opt.space = true;
|
||
break;
|
||
}
|
||
});
|
||
|
||
if (opt.signs) {
|
||
if (+initial >= 0) {
|
||
pre += '+';
|
||
}
|
||
}
|
||
|
||
if (opt.space) {
|
||
if (!opt.signs && +initial >= 0) {
|
||
param = ' ' + param;
|
||
}
|
||
}
|
||
|
||
if (opt.hexpoint) {
|
||
switch (type) {
|
||
case 'o': // unsigned octal
|
||
pre += '0';
|
||
break;
|
||
case 'x': // unsigned hex int
|
||
pre += '0x';
|
||
break;
|
||
case 'X': // unsigned hex int uppercase
|
||
pre += '0X';
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (opt.left) {
|
||
if (width > (pre.length + param.length)) {
|
||
width -= pre.length + param.length;
|
||
pre = Array(width + 1).join(' ') + pre;
|
||
}
|
||
}
|
||
|
||
return pre + param;
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Aliases
|
||
*/
|
||
|
||
Tput.alias = require('./alias');
|
||
|
||
// Bools
|
||
merge(Tput.alias.bools, {
|
||
'no_esc_ctlc': 'beehive_glitch',
|
||
'dest_tabs_magic_smso': 'teleray_glitch',
|
||
});
|
||
|
||
// Numbers
|
||
merge(Tput.alias.numbers, {
|
||
'micro_col_size': 'micro_char_size'
|
||
});
|
||
|
||
// Merge into one object
|
||
merge(Tput.alias, Tput.alias.bools);
|
||
delete Tput.alias.bools;
|
||
|
||
merge(Tput.alias, Tput.alias.numbers);
|
||
delete Tput.alias.numbers;
|
||
|
||
merge(Tput.alias, Tput.alias.strings);
|
||
delete Tput.alias.strings;
|
||
|
||
/**
|
||
* Terminfo Data
|
||
*/
|
||
|
||
Tput.bools = [
|
||
'auto_left_margin',
|
||
'auto_right_margin',
|
||
'no_esc_ctlc',
|
||
'ceol_standout_glitch',
|
||
'eat_newline_glitch',
|
||
'erase_overstrike',
|
||
'generic_type',
|
||
'hard_copy',
|
||
'has_meta_key',
|
||
'has_status_line',
|
||
'insert_null_glitch',
|
||
'memory_above',
|
||
'memory_below',
|
||
'move_insert_mode',
|
||
'move_standout_mode',
|
||
'over_strike',
|
||
'status_line_esc_ok',
|
||
'dest_tabs_magic_smso',
|
||
'tilde_glitch',
|
||
'transparent_underline',
|
||
'xon_xoff',
|
||
'needs_xon_xoff',
|
||
'prtr_silent',
|
||
'hard_cursor',
|
||
'non_rev_rmcup',
|
||
'no_pad_char',
|
||
'non_dest_scroll_region',
|
||
'can_change',
|
||
'back_color_erase',
|
||
'hue_lightness_saturation',
|
||
'col_addr_glitch',
|
||
'cr_cancels_micro_mode',
|
||
'has_print_wheel',
|
||
'row_addr_glitch',
|
||
'semi_auto_right_margin',
|
||
'cpi_changes_res',
|
||
'lpi_changes_res',
|
||
|
||
// #ifdef __INTERNAL_CAPS_VISIBLE
|
||
'backspaces_with_bs',
|
||
'crt_no_scrolling',
|
||
'no_correctly_working_cr',
|
||
'gnu_has_meta_key',
|
||
'linefeed_is_newline',
|
||
'has_hardware_tabs',
|
||
'return_does_clr_eol'
|
||
];
|
||
|
||
Tput.numbers = [
|
||
'columns',
|
||
'init_tabs',
|
||
'lines',
|
||
'lines_of_memory',
|
||
'magic_cookie_glitch',
|
||
'padding_baud_rate',
|
||
'virtual_terminal',
|
||
'width_status_line',
|
||
'num_labels',
|
||
'label_height',
|
||
'label_width',
|
||
'max_attributes',
|
||
'maximum_windows',
|
||
'max_colors',
|
||
'max_pairs',
|
||
'no_color_video',
|
||
'buffer_capacity',
|
||
'dot_vert_spacing',
|
||
'dot_horz_spacing',
|
||
'max_micro_address',
|
||
'max_micro_jump',
|
||
'micro_col_size',
|
||
'micro_line_size',
|
||
'number_of_pins',
|
||
'output_res_char',
|
||
'output_res_line',
|
||
'output_res_horz_inch',
|
||
'output_res_vert_inch',
|
||
'print_rate',
|
||
'wide_char_size',
|
||
'buttons',
|
||
'bit_image_entwining',
|
||
'bit_image_type',
|
||
|
||
// #ifdef __INTERNAL_CAPS_VISIBLE
|
||
'magic_cookie_glitch_ul',
|
||
'carriage_return_delay',
|
||
'new_line_delay',
|
||
'backspace_delay',
|
||
'horizontal_tab_delay',
|
||
'number_of_function_keys'
|
||
];
|
||
|
||
Tput.strings = [
|
||
'back_tab',
|
||
'bell',
|
||
'carriage_return',
|
||
'change_scroll_region',
|
||
'clear_all_tabs',
|
||
'clear_screen',
|
||
'clr_eol',
|
||
'clr_eos',
|
||
'column_address',
|
||
'command_character',
|
||
'cursor_address',
|
||
'cursor_down',
|
||
'cursor_home',
|
||
'cursor_invisible',
|
||
'cursor_left',
|
||
'cursor_mem_address',
|
||
'cursor_normal',
|
||
'cursor_right',
|
||
'cursor_to_ll',
|
||
'cursor_up',
|
||
'cursor_visible',
|
||
'delete_character',
|
||
'delete_line',
|
||
'dis_status_line',
|
||
'down_half_line',
|
||
'enter_alt_charset_mode',
|
||
'enter_blink_mode',
|
||
'enter_bold_mode',
|
||
'enter_ca_mode',
|
||
'enter_delete_mode',
|
||
'enter_dim_mode',
|
||
'enter_insert_mode',
|
||
'enter_secure_mode',
|
||
'enter_protected_mode',
|
||
'enter_reverse_mode',
|
||
'enter_standout_mode',
|
||
'enter_underline_mode',
|
||
'erase_chars',
|
||
'exit_alt_charset_mode',
|
||
'exit_attribute_mode',
|
||
'exit_ca_mode',
|
||
'exit_delete_mode',
|
||
'exit_insert_mode',
|
||
'exit_standout_mode',
|
||
'exit_underline_mode',
|
||
'flash_screen',
|
||
'form_feed',
|
||
'from_status_line',
|
||
'init_1string',
|
||
'init_2string',
|
||
'init_3string',
|
||
'init_file',
|
||
'insert_character',
|
||
'insert_line',
|
||
'insert_padding',
|
||
'key_backspace',
|
||
'key_catab',
|
||
'key_clear',
|
||
'key_ctab',
|
||
'key_dc',
|
||
'key_dl',
|
||
'key_down',
|
||
'key_eic',
|
||
'key_eol',
|
||
'key_eos',
|
||
'key_f0',
|
||
'key_f1',
|
||
'key_f10',
|
||
'key_f2',
|
||
'key_f3',
|
||
'key_f4',
|
||
'key_f5',
|
||
'key_f6',
|
||
'key_f7',
|
||
'key_f8',
|
||
'key_f9',
|
||
'key_home',
|
||
'key_ic',
|
||
'key_il',
|
||
'key_left',
|
||
'key_ll',
|
||
'key_npage',
|
||
'key_ppage',
|
||
'key_right',
|
||
'key_sf',
|
||
'key_sr',
|
||
'key_stab',
|
||
'key_up',
|
||
'keypad_local',
|
||
'keypad_xmit',
|
||
'lab_f0',
|
||
'lab_f1',
|
||
'lab_f10',
|
||
'lab_f2',
|
||
'lab_f3',
|
||
'lab_f4',
|
||
'lab_f5',
|
||
'lab_f6',
|
||
'lab_f7',
|
||
'lab_f8',
|
||
'lab_f9',
|
||
'meta_off',
|
||
'meta_on',
|
||
'newline',
|
||
'pad_char',
|
||
'parm_dch',
|
||
'parm_delete_line',
|
||
'parm_down_cursor',
|
||
'parm_ich',
|
||
'parm_index',
|
||
'parm_insert_line',
|
||
'parm_left_cursor',
|
||
'parm_right_cursor',
|
||
'parm_rindex',
|
||
'parm_up_cursor',
|
||
'pkey_key',
|
||
'pkey_local',
|
||
'pkey_xmit',
|
||
'print_screen',
|
||
'prtr_off',
|
||
'prtr_on',
|
||
'repeat_char',
|
||
'reset_1string',
|
||
'reset_2string',
|
||
'reset_3string',
|
||
'reset_file',
|
||
'restore_cursor',
|
||
'row_address',
|
||
'save_cursor',
|
||
'scroll_forward',
|
||
'scroll_reverse',
|
||
'set_attributes',
|
||
'set_tab',
|
||
'set_window',
|
||
'tab',
|
||
'to_status_line',
|
||
'underline_char',
|
||
'up_half_line',
|
||
'init_prog',
|
||
'key_a1',
|
||
'key_a3',
|
||
'key_b2',
|
||
'key_c1',
|
||
'key_c3',
|
||
'prtr_non',
|
||
'char_padding',
|
||
'acs_chars',
|
||
'plab_norm',
|
||
'key_btab',
|
||
'enter_xon_mode',
|
||
'exit_xon_mode',
|
||
'enter_am_mode',
|
||
'exit_am_mode',
|
||
'xon_character',
|
||
'xoff_character',
|
||
'ena_acs',
|
||
'label_on',
|
||
'label_off',
|
||
'key_beg',
|
||
'key_cancel',
|
||
'key_close',
|
||
'key_command',
|
||
'key_copy',
|
||
'key_create',
|
||
'key_end',
|
||
'key_enter',
|
||
'key_exit',
|
||
'key_find',
|
||
'key_help',
|
||
'key_mark',
|
||
'key_message',
|
||
'key_move',
|
||
'key_next',
|
||
'key_open',
|
||
'key_options',
|
||
'key_previous',
|
||
'key_print',
|
||
'key_redo',
|
||
'key_reference',
|
||
'key_refresh',
|
||
'key_replace',
|
||
'key_restart',
|
||
'key_resume',
|
||
'key_save',
|
||
'key_suspend',
|
||
'key_undo',
|
||
'key_sbeg',
|
||
'key_scancel',
|
||
'key_scommand',
|
||
'key_scopy',
|
||
'key_screate',
|
||
'key_sdc',
|
||
'key_sdl',
|
||
'key_select',
|
||
'key_send',
|
||
'key_seol',
|
||
'key_sexit',
|
||
'key_sfind',
|
||
'key_shelp',
|
||
'key_shome',
|
||
'key_sic',
|
||
'key_sleft',
|
||
'key_smessage',
|
||
'key_smove',
|
||
'key_snext',
|
||
'key_soptions',
|
||
'key_sprevious',
|
||
'key_sprint',
|
||
'key_sredo',
|
||
'key_sreplace',
|
||
'key_sright',
|
||
'key_srsume',
|
||
'key_ssave',
|
||
'key_ssuspend',
|
||
'key_sundo',
|
||
'req_for_input',
|
||
'key_f11',
|
||
'key_f12',
|
||
'key_f13',
|
||
'key_f14',
|
||
'key_f15',
|
||
'key_f16',
|
||
'key_f17',
|
||
'key_f18',
|
||
'key_f19',
|
||
'key_f20',
|
||
'key_f21',
|
||
'key_f22',
|
||
'key_f23',
|
||
'key_f24',
|
||
'key_f25',
|
||
'key_f26',
|
||
'key_f27',
|
||
'key_f28',
|
||
'key_f29',
|
||
'key_f30',
|
||
'key_f31',
|
||
'key_f32',
|
||
'key_f33',
|
||
'key_f34',
|
||
'key_f35',
|
||
'key_f36',
|
||
'key_f37',
|
||
'key_f38',
|
||
'key_f39',
|
||
'key_f40',
|
||
'key_f41',
|
||
'key_f42',
|
||
'key_f43',
|
||
'key_f44',
|
||
'key_f45',
|
||
'key_f46',
|
||
'key_f47',
|
||
'key_f48',
|
||
'key_f49',
|
||
'key_f50',
|
||
'key_f51',
|
||
'key_f52',
|
||
'key_f53',
|
||
'key_f54',
|
||
'key_f55',
|
||
'key_f56',
|
||
'key_f57',
|
||
'key_f58',
|
||
'key_f59',
|
||
'key_f60',
|
||
'key_f61',
|
||
'key_f62',
|
||
'key_f63',
|
||
'clr_bol',
|
||
'clear_margins',
|
||
'set_left_margin',
|
||
'set_right_margin',
|
||
'label_format',
|
||
'set_clock',
|
||
'display_clock',
|
||
'remove_clock',
|
||
'create_window',
|
||
'goto_window',
|
||
'hangup',
|
||
'dial_phone',
|
||
'quick_dial',
|
||
'tone',
|
||
'pulse',
|
||
'flash_hook',
|
||
'fixed_pause',
|
||
'wait_tone',
|
||
'user0',
|
||
'user1',
|
||
'user2',
|
||
'user3',
|
||
'user4',
|
||
'user5',
|
||
'user6',
|
||
'user7',
|
||
'user8',
|
||
'user9',
|
||
'orig_pair',
|
||
'orig_colors',
|
||
'initialize_color',
|
||
'initialize_pair',
|
||
'set_color_pair',
|
||
'set_foreground',
|
||
'set_background',
|
||
'change_char_pitch',
|
||
'change_line_pitch',
|
||
'change_res_horz',
|
||
'change_res_vert',
|
||
'define_char',
|
||
'enter_doublewide_mode',
|
||
'enter_draft_quality',
|
||
'enter_italics_mode',
|
||
'enter_leftward_mode',
|
||
'enter_micro_mode',
|
||
'enter_near_letter_quality',
|
||
'enter_normal_quality',
|
||
'enter_shadow_mode',
|
||
'enter_subscript_mode',
|
||
'enter_superscript_mode',
|
||
'enter_upward_mode',
|
||
'exit_doublewide_mode',
|
||
'exit_italics_mode',
|
||
'exit_leftward_mode',
|
||
'exit_micro_mode',
|
||
'exit_shadow_mode',
|
||
'exit_subscript_mode',
|
||
'exit_superscript_mode',
|
||
'exit_upward_mode',
|
||
'micro_column_address',
|
||
'micro_down',
|
||
'micro_left',
|
||
'micro_right',
|
||
'micro_row_address',
|
||
'micro_up',
|
||
'order_of_pins',
|
||
'parm_down_micro',
|
||
'parm_left_micro',
|
||
'parm_right_micro',
|
||
'parm_up_micro',
|
||
'select_char_set',
|
||
'set_bottom_margin',
|
||
'set_bottom_margin_parm',
|
||
'set_left_margin_parm',
|
||
'set_right_margin_parm',
|
||
'set_top_margin',
|
||
'set_top_margin_parm',
|
||
'start_bit_image',
|
||
'start_char_set_def',
|
||
'stop_bit_image',
|
||
'stop_char_set_def',
|
||
'subscript_characters',
|
||
'superscript_characters',
|
||
'these_cause_cr',
|
||
'zero_motion',
|
||
'char_set_names',
|
||
'key_mouse',
|
||
'mouse_info',
|
||
'req_mouse_pos',
|
||
'get_mouse',
|
||
'set_a_foreground',
|
||
'set_a_background',
|
||
'pkey_plab',
|
||
'device_type',
|
||
'code_set_init',
|
||
'set0_des_seq',
|
||
'set1_des_seq',
|
||
'set2_des_seq',
|
||
'set3_des_seq',
|
||
'set_lr_margin',
|
||
'set_tb_margin',
|
||
'bit_image_repeat',
|
||
'bit_image_newline',
|
||
'bit_image_carriage_return',
|
||
'color_names',
|
||
'define_bit_image_region',
|
||
'end_bit_image_region',
|
||
'set_color_band',
|
||
'set_page_length',
|
||
'display_pc_char',
|
||
'enter_pc_charset_mode',
|
||
'exit_pc_charset_mode',
|
||
'enter_scancode_mode',
|
||
'exit_scancode_mode',
|
||
'pc_term_options',
|
||
'scancode_escape',
|
||
'alt_scancode_esc',
|
||
'enter_horizontal_hl_mode',
|
||
'enter_left_hl_mode',
|
||
'enter_low_hl_mode',
|
||
'enter_right_hl_mode',
|
||
'enter_top_hl_mode',
|
||
'enter_vertical_hl_mode',
|
||
'set_a_attributes',
|
||
'set_pglen_inch',
|
||
|
||
// #ifdef __INTERNAL_CAPS_VISIBLE
|
||
'termcap_init2',
|
||
'termcap_reset',
|
||
'linefeed_if_not_lf',
|
||
'backspace_if_not_bs',
|
||
'other_non_function_keys',
|
||
'arrow_key_map',
|
||
'acs_ulcorner',
|
||
'acs_llcorner',
|
||
'acs_urcorner',
|
||
'acs_lrcorner',
|
||
'acs_ltee',
|
||
'acs_rtee',
|
||
'acs_btee',
|
||
'acs_ttee',
|
||
'acs_hline',
|
||
'acs_vline',
|
||
'acs_plus',
|
||
'memory_lock',
|
||
'memory_unlock',
|
||
'box_chars_1'
|
||
];
|
||
|
||
/**
|
||
* Expose
|
||
*/
|
||
|
||
exports = Tput;
|
||
exports.sprintf = sprintf;
|
||
|
||
module.exports = exports;
|