Regular Expressions 101

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/
([+-]?(?:'.+?'|".+?"|[^+\- ]{1}[^ ]*))
/
g
1st Capturing Group
([+-]?(?:'.+?'|".+?"|[^+\- ]{1}[^ ]*))
Match a single character present in the list below
[+-]
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
+ matches the character + with index 4310 (2B16 or 538) literally (case sensitive)
- matches the character - with index 4510 (2D16 or 558) literally (case sensitive)
This hyphen is treated literally, which might be confusing for others. Consider escaping it or placing at the start or end of the class!
Non-capturing group
(?:'.+?'|".+?"|[^+\- ]{1}[^ ]*)
1st Alternative
'.+?'
' matches the character ' with index 3910 (2716 or 478) literally (case sensitive)
.
matches any character (except for line terminators)
+? matches the previous token between one and unlimited times, as few times as possible, expanding as needed (lazy)
' matches the character ' with index 3910 (2716 or 478) literally (case sensitive)
2nd Alternative
".+?"
" matches the character " with index 3410 (2216 or 428) literally (case sensitive)
.
matches any character (except for line terminators)
+? matches the previous token between one and unlimited times, as few times as possible, expanding as needed (lazy)
" matches the character " with index 3410 (2216 or 428) literally (case sensitive)
3rd Alternative
[^+\- ]{1}[^ ]*
Match a single character not present in the list below
[^+\- ]
{1} matches the previous token exactly one time (meaningless quantifier)
+ matches the character + with index 4310 (2B16 or 538) literally (case sensitive)
\- matches the character - with index 4510 (2D16 or 558) literally (case sensitive)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
Match a single character not present in the list below
[^ ]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
Global pattern flags
g modifier: global. All matches (don't return after first match)
Your regular expression does not match the subject string.

Regular Expression
No Match

/
/
g

Test String

Code Generator

Generated Code

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Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report.
For a full regex reference for Perl, please visit: http://perldoc.perl.org/perlre.html