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jsbasic
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Use RegExp literals where possible

This commit is contained in:
Joshua Bell 2013-08-16 18:38:29 -07:00
parent 60d2025d4b
commit 73802c7eb7
2 changed files with 14 additions and 14 deletions
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26
basic.js
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@ -358,10 +358,10 @@ var basic = (function() {
// the substring consumed. // the substring consumed.
var parseDataInput = (function() { var parseDataInput = (function() {
var regexWhitespace = new RegExp('^[ \\t]+'), var regexWhitespace = /^[ \t]+/,
regexQuotedString = new RegExp('^"([^"]*?)"'), regexQuotedString = /^"([^"]*?)"/,
regexUnquotedString = new RegExp('^([^:,\\r\\n]*)'), regexUnquotedString = /^([^:,\r\n]*)/,
regexComma = new RegExp('^,'); regexComma = /^,/;
return function _parseDataInput(stream, items) { return function _parseDataInput(stream, items) {
@ -1236,19 +1236,19 @@ var basic = (function() {
RESERVED_WORDS.reverse(); RESERVED_WORDS.reverse();
var regexReservedWords = new RegExp("^(" + RESERVED_WORDS.map(munge).join("|") + ")", "i"), var regexReservedWords = new RegExp("^(" + RESERVED_WORDS.map(munge).join("|") + ")", "i"),
regexIdentifier = new RegExp('^([A-Za-z][A-Za-z0-9]?)[A-Za-z0-9]*(\\$|%)?'), regexIdentifier = /^([A-Za-z][A-Za-z0-9]?)[A-Za-z0-9]*(\$|%)?/,
regexStringLiteral = new RegExp('^"([^"]*?)(?:"|(?=\\n|\\r|$))'), regexStringLiteral = /^"([^"]*?)(?:"|(?=\n|\r|$))/,
regexNumberLiteral = new RegExp('^([0-9]*\\.?[0-9]+(?:[eE]\\s*[\\-+]?\\s*[0-9]+)?)'), regexNumberLiteral = /^([0-9]*\.?[0-9]+(?:[eE]\s*[\-+]?\s*[0-9]+)?)/,
regexOperator = new RegExp('^(;|<[ \t]*=|=[ \t]*<|>[ \t]*=|=[ \t]*>|=[ \t]*=|<[ \t]*>|>[ \t]*<|=|<|>|\\+|-|\\*|/|\\^|\\(|\\)|,)'), regexOperator = /^(;|<[ \t]*=|=[ \t]*<|>[ \t]*=|=[ \t]*>|=[ \t]*=|<[ \t]*>|>[ \t]*<|=|<|>|\+|-|\*|\/|\^|\(|\)|,)/,
regexLineNumber = new RegExp('^([0-9]+)'), regexLineNumber = /^([0-9]+)/,
regexSeparator = new RegExp('^(:)'), regexSeparator = /^(:)/,
regexRemark = new RegExp('^(' + munge(kws.REM) + '([^\r\n]*))', 'i'), regexRemark = new RegExp('^(' + munge(kws.REM) + '([^\r\n]*))', 'i'),
regexData = new RegExp('^(' + munge(kws.DATA) + ')', 'i'), regexData = new RegExp('^(' + munge(kws.DATA) + ')', 'i'),
regexLinearWhitespace = new RegExp('^[ \t]+'), regexLinearWhitespace = /^[ \t]+/,
regexNewline = new RegExp('^\r?\n'); regexNewline = /^\r?\n/;
// Token types: // Token types:
// lineNumber - start of a new line // lineNumber - start of a new line
@ -1383,7 +1383,7 @@ var basic = (function() {
function quote(string) { function quote(string) {
// From json2.js (http://www.json.org/js.html) // From json2.js (http://www.json.org/js.html)
var escapable = new RegExp('[\\\\"\\x00-\\x1f\\x7f-\\x9f\\u00ad\\u0600-\\u0604\\u070f\\u17b4\\u17b5\\u200c-\\u200f\\u2028-\\u202f\\u2060-\\u206f\\ufeff\\ufff0-\\uffff]', 'g'), var escapable = /[\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
meta = { // table of character substitutions meta = { // table of character substitutions
'\b': '\\b', '\b': '\\b',
'\t': '\\t', '\t': '\\t',

2
reference.htm
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@ -131,7 +131,7 @@ This is intended as a quick reference for the <a href="index.htm">Applesoft BASI
<h3>Hi-Res Graphics</h3> <h3>Hi-Res Graphics</h3>
<dl> <dl>
<dt>HGR<dd>Set display to mixed/high resolution ("hires") graphics mode, clear screen to black <dt>HGR<dd>Set display to mixed/high resolution ("hires") graphics mode, clear screen to black
<dt>HGR2<dd>Set display to full hires mode (page 2), clear screen <dt>HGR2<dd>Set display to full hires mode (page 2), clear screen to black
<dt>HPLOT [TO] <var>expr</var>, <var>expr</var> [ TO <var>expr</var>, <var>expr</var> ] ... <dd>Plot hires point/line (x=0...279, y=0...191) <dt>HPLOT [TO] <var>expr</var>, <var>expr</var> [ TO <var>expr</var>, <var>expr</var> ] ... <dd>Plot hires point/line (x=0...279, y=0...191)
<dt>HCOLOR= <var>expr</var><dd>Set hires color (0...7) <dt>HCOLOR= <var>expr</var><dd>Set hires color (0...7)
</dl> </dl>