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Add inordinate number of quoting styles, none of which, save one, are acually accessible

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This commit is contained in:
Kris Maglione
2008-12-12 21:48:13 -05:00
parent 5489a0b2de
commit d94d8b6517
1 changed files with 52 additions and 74 deletions
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126
common/content/commands.js
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@@ -164,6 +164,8 @@ function Commands() //{{{
return NaN;
}
const QUOTE_STYLE = "vimperator";
const quoteMap = {
"\n": "n",
"\t": "t"
@@ -298,92 +300,63 @@ function Commands() //{{{
},
// returns [count, parsed_argument]
parseArg: function getNextArg(str)
parseArg: function parseArg(str)
{
var stringDelimiter = null;
var escapeNext = false;
let arg = "";
let quote = null;
let len = str.length;
var arg = "";
outer:
for (let i = 0; i < str.length; i++)
while (str.length && !/^\s/.test(str))
{
inner:
switch (str[i])
let res;
switch (QUOTE_STYLE)
{
case '"':
case "'":
if (escapeNext)
{
escapeNext = false;
break;
}
switch (stringDelimiter)
{
case str[i]:
stringDelimiter = null;
continue outer;
case null:
stringDelimiter = str[i];
continue outer;
}
case "vim-sucks":
if (res = str.match = str.match(/^()((?:[^\\\s]|\\.)+)((?:\\$)?)/))
arg += res[2].replace(/\\(.)/g, "$1");
break;
// \ is an escape key for non quoted or "-quoted strings
// for '-quoted strings it is taken literally, apart from \' and \\
case "\\":
if (escapeNext)
{
escapeNext = false;
break;
}
else
{
// in non-quoted strings, only escape "\\" and "\ ", otherwise drop "\\"
if (!stringDelimiter && str[i + 1] != "\\" && str[i + 1] != " ")
continue outer;
// in single quoted strings, only escape "\\" and "\'", otherwise keep "\\"
if (stringDelimiter == "'" && str[i + 1] != "\\" && str[i + 1] != "'")
break;
escapeNext = true;
continue outer;
}
case "vimperator":
if (res = str.match(/^()((?:[^\\\s"']|\\.)+)((?:\\$)?)/))
arg += res[2].replace(/\\(.)/g, "$1");
else if (res = str.match(/^(")((?:[^\\"]|\\.)*)("?)/))
arg += eval(res[0] + (res[3] ? "" : '"'));
else if (res = str.match(/^(')((?:[^\\']|\\.)*)('?)/))
arg += res[2].replace(/\\(.)/g, function (n0, n1) /[\\']/.test(n1) ? n1 : n0);
break;
default:
if (stringDelimiter == "'")
{
escapeNext = false;
break;
}
if (escapeNext)
{
escapeNext = false;
switch (str[i])
{
case "n": arg += "\n"; break;
case "t": arg += "\t"; break;
default:
break inner; // this makes "a\fb" -> afb; wanted or should we return ab? --mst
}
continue outer;
}
else if (stringDelimiter != '"' && /\s/.test(str[i]))
{
return [i, arg];
}
case "rc-ish":
if (res = str.match = str.match(/^()((?:[^\\\s"']|\\.)+)((?:\\$)?)/))
arg += res[2].replace(/\\(.)/g, "$1");
else if (res = str.match(/^(")((?:[^\\"]|\\.)*)("?)/))
arg += eval(res[0] + (res[3] ? "" : '"'));
else if (res = str.match(/^(')((?:[^']|'')*)('?)/))
arg += res[2].replace("''", "'", "g");
break;
case "pythonesque":
if (res = str.match = str.match(/^()((?:[^\\\s"']|\\.)+)((?:\\$)?)/))
arg += res[2].replace(/\\(.)/g, "$1");
else if (res = str.match(/^(""")((?:.?.?[^"])*)((?:""")?)/))
arg += res[2];
else if (res = str.match(/^(")((?:[^\\"]|\\.)*)("?)/))
arg += eval(res[0] + (res[3] ? "" : '"'));
else if (res = str.match(/^(')((?:[^\\']|\\.)*)('?)/))
arg += res[2].replace(/\\(.)/g, function (n0, n1) /[\\']/.test(n1) ? n1 : n0);
break;
}
arg += str[i];
if (!res)
break;
if (!res[3])
quote = res[1];
if (!res[1])
quote = res[3];
str = str.substr(res[0].length);
}
// TODO: add parsing of a " comment here:
if (stringDelimiter)
return [str.length, arg, stringDelimiter];
if (escapeNext)
return [str.length, arg, "\\"];
else
return [str.length, arg];
return [len - str.length, arg, quote];
},
// in '-quoted strings, only ' and \ itself are escaped
@@ -506,6 +479,8 @@ function Commands() //{{{
if (sep == "=" || /\s/.test(sep) && opt[1] != this.OPTION_NOARG)
{
[count, arg, quote] = getNextArg(sub.substr(optname.length + 1));
if (quote == "\\" && !complete)
return liberator.echoerr("Trailing \\");
// if we add the argument to an option after a space, it MUST not be empty
if (sep != "=" && !quote && arg.length == 0)
@@ -595,6 +570,9 @@ function Commands() //{{{
// if not an option, treat this token as an argument
var [count, arg, quote] = getNextArg(sub);
if (quote == "\\" && !complete)
return liberator.echoerr("Trailing \\");
if (complete)
{
args.quote = complQuote[quote] || complQuote[""];