The obvious choice – often recommended when hitting the boundaries of COMMAND especially with older versions of CMake – is to use an external script. I just wanted to add some simple COMMAND only variations that do work and won’t need a shell, but are – I have to admit – still partly platform dependent. … Read more
It depends how complicated you want to get… do you want to allow more than one type of quoting. How about escaped quotes? Your syntax looks very much like the common CSV file format, which is supported by the Python standard library: import csv reader = csv.reader([”’foo, bar, “one, two”, three four”’], skipinitialspace=True) for r … Read more
The warnings about foregoing enclosures are valid, but you’ve said they don’t apply to your use-case. I’m wondering why you can’t just use something like this? <?php $fields = array( “field 1″,”field 2″,”field3hasNoSpaces” ); fputs(STDOUT, implode(‘,’, $fields).”\n”);
They’re extraordinarily useful for escaping HTML with JavaScript in it where you’ve already “run out” of quoting methods: link = %q[<a href=”https://stackoverflow.com/questions/10144543/javascript:method(“call’)”>link</a>] I’ve also found them to be very useful when working with multi-line SQL statements: execute(%Q[ INSERT INTO table_a (column_a) SELECT value FROM table_b WHERE key=’value’ ]) The advantage there is you don’t need … Read more
Don’t use quotes, use an array (see BashFAQ #050): $ myArgs=(“hello” “world” “multiword arg with * ?”) + myArgs=(“hello” “world” “multiword arg with * ?”) $ echo “${myArgs[@]}” + echo hello world ‘multiword arg with * ?’ hello world multiword arg with * ? If it really needs to be in the form of quoted … Read more
The call command has this functionality built in. To quote the help for call: Substitution of batch parameters (%n) has been enhanced. You can now use the following optional syntax: %~1 – expands %1 removing any surrounding quotes (“) Here is a primitive example: @echo off setlocal set mystring=”this is some quoted text” echo mystring=%mystring% … Read more
Variable-substitution isn’t done when using single quotes (‘), meaning that the values in your first example would literally be $1 $2 etc if it was a regular string and not passed on to a function that replaces them. If you don’t need variable-substitiution, it’s better to stick with single quotes for performance reasons. “ invokes … Read more
According to php.net To specify a literal single quote, escape it with a backslash (\). It means you could have: <?php echo ‘<span onclick=”$(this).addClass(\’selected\’);”> </span>’; ?>
What you’ve got there is an example of Friedl’s “unrolled loop” technique, but you seem to have some confusion about how to express it as a string literal. Here’s how it should look to the regex compiler: “[^”\\]*(?:\\.[^”\\]*)*” The initial “[^”\\]* matches a quotation mark followed by zero or more of any characters other than … Read more
General rule: quote it if it can either be empty or contain spaces (or any whitespace really) or special characters (wildcards). Not quoting strings with spaces often leads to the shell breaking apart a single argument into many. $? doesn’t need quotes since it’s a numeric value. Whether $URL needs it depends on what you … Read more