mirror of
https://github.com/embarklabs/neo-blessed.git
synced 2025-02-27 10:00:46 +00:00
better terminfo/cap discovery. fixes #17.
This commit is contained in:
Christopher Jeffrey
parent
fdfdac63a8
commit
00ee15a32f
167
lib/tput.js
167
lib/tput.js
@ -124,6 +124,19 @@ Tput.prototype._useInternalCap = function(name) {
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* Terminfo
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*/
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Tput.ipaths = [
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process.env.TERMINFO || '',
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(process.env.TERMINFO_DIRS || '').split(':'),
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(process.env.HOME || '') + '/.terminfo',
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'/usr/share/terminfo',
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'/usr/share/lib/terminfo',
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'/usr/lib/terminfo',
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'/usr/local/share/terminfo',
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'/usr/local/share/lib/terminfo',
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'/usr/local/lib/terminfo',
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'/usr/local/ncurses/lib/terminfo'
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];
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Tput.prototype.readTerminfo = function(term) {
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var term = term || this.terminal
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, data
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@ -143,33 +156,52 @@ Tput.prototype.readTerminfo = function(term) {
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Tput._prefix =
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Tput.prototype._prefix = function(term) {
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var TERMINFO = process.env.TERMINFO || ''
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, TERMINFO_DIRS = process.env.TERMINFO_DIRS || ''
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, HOME = process.env.HOME || '';
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// If we have a terminfoFile, or our
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// term looks like a filename, use it.
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if (term) {
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if (~term.indexOf(path.sep)) {
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return term;
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}
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if (this.terminfoFile) {
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return this.terminfoFile;
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}
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}
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return (term && ~term.indexOf(path.sep) && term)
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|| (term && this.terminfoFile)
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|| this._tprefix(this.terminfoPrefix, term)
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|| this._tprefix(TERMINFO, term)
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|| this._tprefix(TERMINFO_DIRS.split(':'), term)
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|| this._tprefix(HOME + '/.terminfo', term)
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|| this._tprefix('/usr/share/terminfo', term)
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|| this._tprefix('/usr/share/lib/terminfo', term)
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|| this._tprefix('/usr/lib/terminfo', term)
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|| this._tprefix('/usr/local/share/terminfo', term)
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|| this._tprefix('/usr/local/share/lib/terminfo', term)
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|| this._tprefix('/usr/local/lib/terminfo', term)
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|| this._tprefix('/usr/local/ncurses/lib/terminfo', term)
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|| (function() { throw new Error('Terminfo directory not found.'); })();
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var paths = Tput.ipaths.slice()
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, file
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, i;
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if (this.terminfoPrefix) {
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paths.unshift(this.terminfoPrefix);
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}
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// Try exact matches.
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for (i = 0; i < paths.length; i++) {
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file = this._tprefix(paths[i], term);
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if (file) return file;
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}
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// Try similar matches.
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for (i = 0; i < paths.length; i++) {
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file = this._tprefix(paths[i], term, true);
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if (file) return file;
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}
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// Not found.
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throw new Error('Terminfo directory not found.');
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};
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Tput._tprefix =
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Tput.prototype._tprefix = function(prefix, term) {
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Tput.prototype._tprefix = function(prefix, term, soft) {
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if (!prefix) return;
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var file
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, dir
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, ch
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, i;
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, i
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, sdiff
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, sfile
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, list;
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if (Array.isArray(prefix)) {
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for (i = 0; i < prefix.length; i++) {
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@ -179,18 +211,40 @@ Tput.prototype._tprefix = function(prefix, term) {
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return;
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}
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if (!term) {
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file = path.resolve(prefix, 'x');
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var find = function(word) {
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var file, ch;
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file = path.resolve(prefix, word[0]);
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try {
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fs.statSync(file);
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return prefix;
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return file;
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} catch (e) {
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;
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}
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file = path.resolve(prefix, '78');
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ch = word[0].charCodeAt(0).toString(16);
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if (ch.length < 2) ch = '0' + ch;
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file = path.resolve(prefix, ch);
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try {
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fs.statSync(file);
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return prefix;
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return file;
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} catch (e) {
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;
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}
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};
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if (!term) {
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// Make sure the directory's sub-directories
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// are all one-letter, or hex digits.
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// return find('x') ? prefix : null;
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try {
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dir = fs.readdirSync(prefix).filter(function(file) {
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return file.length !== 1 && !/^[0-9a-fA-F]{2}$/.test(file);
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});
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if (!dir.length) {
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return prefix;
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}
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} catch (e) {
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;
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}
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@ -198,19 +252,33 @@ Tput.prototype._tprefix = function(prefix, term) {
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}
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term = path.basename(term);
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dir = find(term);
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file = path.resolve(prefix, term[0], term);
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try {
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fs.statSync(file);
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return file;
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} catch (e) {
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;
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if (!dir) return;
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if (soft) {
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try {
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list = fs.readdirSync(dir);
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} catch (e) {
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return;
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}
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list.forEach(function(file) {
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if (file.indexOf(term) === 0) {
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var diff = file.length - term.length;
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if (!sfile || diff < sdiff) {
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sdiff = diff;
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sfile = file;
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}
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}
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});
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return sfile && (soft || sdiff === 0)
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? path.resolve(dir, sfile)
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: null;
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}
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ch = term[0].charCodeAt(0).toString(16);
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if (ch.length < 2) ch = '0' + ch;
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file = path.resolve(prefix, ch, term);
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file = path.resolve(dir, term);
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try {
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fs.statSync(file);
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return file;
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@ -1154,6 +1222,14 @@ Tput.prototype._print = function(code, print, done) {
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* Termcap
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*/
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Tput.cpaths = [
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process.env.TERMCAP || '',
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(process.env.TERMPATH || '').split(/[: ]/),
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(process.env.HOME || '') + '/.termcap',
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'/usr/share/misc/termcap',
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'/etc/termcap'
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];
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Tput.prototype.readTermcap = function(term) {
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var self = this
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, term = term || this.terminal
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@ -1162,7 +1238,9 @@ Tput.prototype.readTermcap = function(term) {
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, HOME = process.env.HOME || ''
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, terms
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, term_
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, root;
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, root
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, paths
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, i;
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// Termcap has a bunch of terminals usually stored in one file/string,
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// so we need to find the one containing our desired terminal.
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@ -1176,13 +1254,18 @@ Tput.prototype.readTermcap = function(term) {
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term = Object.keys(terms)[0];
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}
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} else {
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terms = this._tryCap(this.termcapFile, term)
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|| this._tryCap(TERMCAP, term)
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|| this._tryCap(TERMPATH && TERMPATH.split(/[: ]/), term)
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|| this._tryCap(HOME + '/.termcap', term)
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|| this._tryCap('/usr/share/misc/termcap', term)
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|| this._tryCap('/etc/termcap', term)
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|| this._tryCap(Tput.termcap, term);
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paths = Tput.cpaths.slice();
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if (this.termcapFile) {
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paths.unshift(this.termcapFile);
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}
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paths.push(Tput.termcap);
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for (i = 0; i < paths.length; i++) {
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terms = this._tryCap(paths[i], term);
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if (terms) break;
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}
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}
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if (!terms) {
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