From 703e03aba33f234712206769f57717ba7d92d23d Mon Sep 17 00:00:00 2001 From: LinuxWizard42 Date: Wed, 12 Oct 2022 22:54:37 +0300 Subject: Added export_allowed file to make repository visible in cgit --- node_modules/extsprintf/lib/extsprintf.js | 183 ++++++++++++++++++++++++++++++ 1 file changed, 183 insertions(+) create mode 100644 node_modules/extsprintf/lib/extsprintf.js (limited to 'node_modules/extsprintf/lib/extsprintf.js') diff --git a/node_modules/extsprintf/lib/extsprintf.js b/node_modules/extsprintf/lib/extsprintf.js new file mode 100644 index 0000000..ed883d3 --- /dev/null +++ b/node_modules/extsprintf/lib/extsprintf.js @@ -0,0 +1,183 @@ +/* + * extsprintf.js: extended POSIX-style sprintf + */ + +var mod_assert = require('assert'); +var mod_util = require('util'); + +/* + * Public interface + */ +exports.sprintf = jsSprintf; +exports.printf = jsPrintf; +exports.fprintf = jsFprintf; + +/* + * Stripped down version of s[n]printf(3c). We make a best effort to throw an + * exception when given a format string we don't understand, rather than + * ignoring it, so that we won't break existing programs if/when we go implement + * the rest of this. + * + * This implementation currently supports specifying + * - field alignment ('-' flag), + * - zero-pad ('0' flag) + * - always show numeric sign ('+' flag), + * - field width + * - conversions for strings, decimal integers, and floats (numbers). + * - argument size specifiers. These are all accepted but ignored, since + * Javascript has no notion of the physical size of an argument. + * + * Everything else is currently unsupported, most notably precision, unsigned + * numbers, non-decimal numbers, and characters. + */ +function jsSprintf(fmt) +{ + var regex = [ + '([^%]*)', /* normal text */ + '%', /* start of format */ + '([\'\\-+ #0]*?)', /* flags (optional) */ + '([1-9]\\d*)?', /* width (optional) */ + '(\\.([1-9]\\d*))?', /* precision (optional) */ + '[lhjztL]*?', /* length mods (ignored) */ + '([diouxXfFeEgGaAcCsSp%jr])' /* conversion */ + ].join(''); + + var re = new RegExp(regex); + var args = Array.prototype.slice.call(arguments, 1); + var flags, width, precision, conversion; + var left, pad, sign, arg, match; + var ret = ''; + var argn = 1; + + mod_assert.equal('string', typeof (fmt)); + + while ((match = re.exec(fmt)) !== null) { + ret += match[1]; + fmt = fmt.substring(match[0].length); + + flags = match[2] || ''; + width = match[3] || 0; + precision = match[4] || ''; + conversion = match[6]; + left = false; + sign = false; + pad = ' '; + + if (conversion == '%') { + ret += '%'; + continue; + } + + if (args.length === 0) + throw (new Error('too few args to sprintf')); + + arg = args.shift(); + argn++; + + if (flags.match(/[\' #]/)) + throw (new Error( + 'unsupported flags: ' + flags)); + + if (precision.length > 0) + throw (new Error( + 'non-zero precision not supported')); + + if (flags.match(/-/)) + left = true; + + if (flags.match(/0/)) + pad = '0'; + + if (flags.match(/\+/)) + sign = true; + + switch (conversion) { + case 's': + if (arg === undefined || arg === null) + throw (new Error('argument ' + argn + + ': attempted to print undefined or null ' + + 'as a string')); + ret += doPad(pad, width, left, arg.toString()); + break; + + case 'd': + arg = Math.floor(arg); + /*jsl:fallthru*/ + case 'f': + sign = sign && arg > 0 ? '+' : ''; + ret += sign + doPad(pad, width, left, + arg.toString()); + break; + + case 'x': + ret += doPad(pad, width, left, arg.toString(16)); + break; + + case 'j': /* non-standard */ + if (width === 0) + width = 10; + ret += mod_util.inspect(arg, false, width); + break; + + case 'r': /* non-standard */ + ret += dumpException(arg); + break; + + default: + throw (new Error('unsupported conversion: ' + + conversion)); + } + } + + ret += fmt; + return (ret); +} + +function jsPrintf() { + var args = Array.prototype.slice.call(arguments); + args.unshift(process.stdout); + jsFprintf.apply(null, args); +} + +function jsFprintf(stream) { + var args = Array.prototype.slice.call(arguments, 1); + return (stream.write(jsSprintf.apply(this, args))); +} + +function doPad(chr, width, left, str) +{ + var ret = str; + + while (ret.length < width) { + if (left) + ret += chr; + else + ret = chr + ret; + } + + return (ret); +} + +/* + * This function dumps long stack traces for exceptions having a cause() method. + * See node-verror for an example. + */ +function dumpException(ex) +{ + var ret; + + if (!(ex instanceof Error)) + throw (new Error(jsSprintf('invalid type for %%r: %j', ex))); + + /* Note that V8 prepends "ex.stack" with ex.toString(). */ + ret = 'EXCEPTION: ' + ex.constructor.name + ': ' + ex.stack; + + if (ex.cause && typeof (ex.cause) === 'function') { + var cex = ex.cause(); + if (cex) { + ret += '\nCaused by: ' + dumpException(cex); + } + } + + return (ret); +} -- cgit v1.2.3-86-g962b