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  1. 10th August 2011, 17:11 #17
    jacks916
    jacks916 is offline Novice
    Join Date
    Jul 2011
    Posts
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    Qt products
    Qt4
    Platforms
    Windows

    Default Re: Help with regular expression

    I'm going to deal with this lack of appreciation, Six and I have given you multiple way to do this, If you are not going to even try then I'm done.

    I learned Regex on the fly, took me less than one hour to pick up on the simplicity of regexs.

    Step one: split the code line (write one regex for this, my previous post)
    Step two: see if a word is a keyword( write another regex for this )
    Step three move on to next word or line. ( loops!)

    Qt Code: 
    1. Execution Time(sec.):
    2. 0.000009
    3.  
    4. Raw Match Pattern:
    5. (.*)(\"|\'|\;|\.|\,|\:|\(|\)|\{|\}|\[|\])(.*)?
    6.  
    7. Match Pattern Explanation:
    8. The regular expression:
    9.  
    10. (?-imsx:(.*)("|'|;|\.|,|:|\(|\)|\{|\}|\[|\])(.*)?)
    11.  
    12. matches as follows:
    13.  
    14. NODE                     EXPLANATION
    15. ----------------------------------------------------------------------
    16. (?-imsx:                 group, but do not capture (case-sensitive)
    17.                          (with ^ and $ matching normally) (with . not
    18.                          matching \n) (matching whitespace and #
    19.                          normally):
    20. ----------------------------------------------------------------------
    21.   (                        group and capture to \1:
    22. ----------------------------------------------------------------------
    23.     .*                       any character except \n (0 or more times
    24.                              (matching the most amount possible))
    25. ----------------------------------------------------------------------
    26.   )                        end of \1
    27. ----------------------------------------------------------------------
    28.   (                        group and capture to \2:
    29. ----------------------------------------------------------------------
    30.     "                        '"'
    31. ----------------------------------------------------------------------
    32.    |                        OR
    33. ----------------------------------------------------------------------
    34.     '                        '\''
    35. ----------------------------------------------------------------------
    36.    |                        OR
    37. ----------------------------------------------------------------------
    38.     ;                        ';'
    39. ----------------------------------------------------------------------
    40.    |                        OR
    41. ----------------------------------------------------------------------
    42.     \.                       '.'
    43. ----------------------------------------------------------------------
    44.    |                        OR
    45. ----------------------------------------------------------------------
    46.     ,                        ','
    47. ----------------------------------------------------------------------
    48.    |                        OR
    49. ----------------------------------------------------------------------
    50.     :                        ':'
    51. ----------------------------------------------------------------------
    52.    |                        OR
    53. ----------------------------------------------------------------------
    54.     \(                       '('
    55. ----------------------------------------------------------------------
    56.    |                        OR
    57. ----------------------------------------------------------------------
    58.     \)                       ')'
    59. ----------------------------------------------------------------------
    60.    |                        OR
    61. ----------------------------------------------------------------------
    62.     \{                       '{'
    63. ----------------------------------------------------------------------
    64.    |                        OR
    65. ----------------------------------------------------------------------
    66.     \}                       '}'
    67. ----------------------------------------------------------------------
    68.    |                        OR
    69. ----------------------------------------------------------------------
    70.     \[                       '['
    71. ----------------------------------------------------------------------
    72.    |                        OR
    73. ----------------------------------------------------------------------
    74.     \]                       ']'
    75. ----------------------------------------------------------------------
    76.   )                        end of \2
    77. ----------------------------------------------------------------------
    78.   (                        group and capture to \3 (optional
    79.                            (matching the most amount possible)):
    80. ----------------------------------------------------------------------
    81.     .*                       any character except \n (0 or more times
    82.                              (matching the most amount possible))
    83. ----------------------------------------------------------------------
    84.   )?                       end of \3 (NOTE: because you're using a
    85.                            quantifier on this capture, only the LAST
    86.                            repetition of the captured pattern will be
    87.                            stored in \3)
    88. ----------------------------------------------------------------------
    89. )                        end of grouping
    90. ----------------------------------------------------------------------
    91.  
    92. $matches Array:
    93. (
    94.     [0] => Array
    95.         (
    96.             [0] => hello:goodbye
    97.         )
    98.  
    99.     [1] => Array
    100.         (
    101.             [0] => hello
    102.         )
    103.  
    104.     [2] => Array
    105.         (
    106.             [0] => :
    107.         )
    108.  
    109.     [3] => Array
    110.         (
    111.             [0] => goodbye
    112.  
    113. **ignore  "?-imsx:" that is looking at the possible flags you can set
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    Last edited by jacks916; 10th August 2011 at 17:16. Reason: updated contents
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