1: [String[]] $Types = ".ZIP", ".WMV"
2: #[String[]] $Tracks = "TL"
3: #[String[]] $Tracks = $null
4: [String[]] $Tracks = "TL", "PC"
5:
6: [String[]] $FileNames = "TL01.ZIP", "TL02.ZIP", "TL02.WMV", "TL02.PPTX",
7: "TL03.PPTX", "BB02.ZIP", "BB03.WMV", "BB03.PPTX",
8: "PC05.PPTX", "PC09.WMV", "PC09.PPTX"
9:
10:
11: Write "Static Regex matches all`n`n"
12: # Static Regex matches all
13: $FileNames | ForEach-Object { 14: ($_ -match '^(?<TRACK>.*?)(?<INDEX>\d{2})(?<EXT>\..*)$'); 15: $matches.TRACK; $matches.EXT; $matches[0] }
16:
17:
18: Write "Static Regex matches only TL sessions`n`n"
19: # Static Regex matches only TL sessions
20: $FileNames | ForEach-Object { 21: ($_ -match '^(?<TRACK>(TL))(?<INDEX>\d{2})(?<EXT>\..*)$'); 22: $matches.TRACK; $matches.EXT; $matches[0] }
23:
24:
25: Write "Static Regex matches TL and PC sessions`n`n"
26: # Static Regex matches only TL and PC sessions
27: $FileNames | ForEach-Object { 28: ($_ -match '^(?<TRACK>((TL)|(PC)))(?<INDEX>\d{2})(?<EXT>\..*)$'); 29: $matches.TRACK; $matches.EXT; $matches[0] }
30:
31:
32: Write "Static Regex matches TL and PC sessions and .WMV files`n`n"
33: # Static Regex matches only TL and PC sessions and .WMV files
34: $FileNames | ForEach-Object { $_ ; 35: ($_ -match '^(?<TRACK>((TL)|(PC)))(?<INDEX>\d{2})(?<EXT>(\.WMV))$'); 36: $matches.TRACK; $matches.EXT; $matches[0] }
37:
38:
39: Write "Static Regex matches TL and PC sessions and .WMV and .ZIP files`n`n"
40: # Static Regex matches only TL and PC sessions and .WMV and .ZIP files
41: $FileNames | ForEach-Object { $_ ; 42: ($_ -match '^(?<TRACK>((TL)|(PC)))(?<INDEX>\d{2})(?<EXT>((\.WMV)|(\.ZIP)))$'); 43: $matches.TRACK; $matches.EXT; $matches[0] }
44:
45:
46: Write "Static Regex matches TL and PC sessions and .WMV and .ZIP files`n`n"
47: # Static Regex matches only TL and PC sessions and .WMV and .ZIP files
48: # Replaced ' with " in regex string
49: $FileNames | ForEach-Object { $_ ; 50: ($_ -match "^(?<TRACK>((TL)|(PC)))(?<INDEX>\d{2})(?<EXT>((\.WMV)|(\.ZIP)))$"); 51: $matches.TRACK; $matches.EXT; $matches[0] }
52:
53:
54: Write "Static Regex matches TL and PC sessions and .WMV and .ZIP files`n`n"
55: # Static Regex matches only TL and PC sessions and .WMV and .ZIP files
56: # Refactoring Track group and Exension group filter values by using the format
57: # operator
58: # The {2} string is going to replaced by {2} 59: $RegexString = "^(?<TRACK>({0}))(?<INDEX>\d{2})(?<EXT>({1}))$" ` 60: -f "(TL)|(PC)", "(\.WMV)|(\.ZIP)", "{2}" 61: $FileNames | ForEach-Object { $_ ; ($_ -match $RegexString ); 62: $matches.TRACK; $matches.EXT; $matches[0] }
63:
64:
65: Write "Static Regex matches TL and PC sessions and .WMV and .ZIP files`n`n"
66: # Static Regex matches only TL and PC sessions and .WMV and .ZIP files
67: # Adding the filter variables
68: $TrackFilter = "(TL)|(PC)"
69: $TypeFilter = "(\.WMV)|(\.ZIP)"
70: $RegexString = "^(?<TRACK>({0}))(?<INDEX>\d{2})(?<EXT>({1}))$" ` 71: -f $TrackFilter, $TypeFilter, "{2}" 72: $FileNames | ForEach-Object { $_ ; ($_ -match $RegexString ); 73: $matches.TRACK; $matches.EXT; $matches[0] }
74:
75:
76: Write "Static Regex matches TL and PC sessions and .WMV and .ZIP files`n`n"
77: # Static Regex matches only TL and PC sessions and .WMV and .ZIP files
78: # Building values of filter variables dynamically
79:
80: $TrackFilter = ""
81: if ($Tracks -eq $null -or $Tracks.Length -eq 0)
82: { 83: $TrackFilter = ".*?"
84: }
85: elseif ($Tracks.Length -gt 0)
86: { 87: for($i=0; $i -lt $Tracks.Length; $i++)
88: { 89: $TrackFilter += "({0})" -f $Tracks[$i] 90: if( $i -lt ($Tracks.Length - 1))
91: { 92: $TrackFilter += "|"
93: }
94: }
95: }
96:
97: $TypeFilter = ""
98: if ($Types -eq $null -or $Types.Length -eq 0)
99: { 100: $TypeFilter = "\..*"
101: }
102: elseif ($Types.Length -gt 0)
103: { 104: for($i=0; $i -lt $Types.Length; $i++)
105: { 106: $TypeFilter += "(\{0})" -f $Types[$i] 107: if( $i -lt ($Types.Length - 1))
108: { 109: $TypeFilter += "|"
110: }
111: }
112: }
113: $TrackFilter
114: $TypeFilter
115: $RegexString = "^(?<TRACK>({0}))(?<INDEX>\d{2})(?<EXT>({1}))$" ` 116: -f $TrackFilter, $TypeFilter, "{2}" 117: $FileNames | ForEach-Object { $_ ; ($_ -match $RegexString ); 118: $matches.TRACK; $matches.EXT; $matches[0] }
119:
120:
121: Write "Static Regex matches TL and PC sessions and .WMV and .ZIP files`n`n"
122: # Static Regex matches only TL and PC sessions and .WMV and .ZIP files
123: # Adding the matches to an array of strings
124:
125:
126: $TrackFilter = ""
127: if ($Tracks -eq $null -or $Tracks.Length -eq 0)
128: { 129: $TrackFilter = ".*?"
130: }
131: elseif ($Tracks.Length -gt 0)
132: { 133: for($i=0; $i -lt $Tracks.Length; $i++)
134: { 135: $TrackFilter += "({0})" -f $Tracks[$i] 136: if( $i -lt ($Tracks.Length - 1))
137: { 138: $TrackFilter += "|"
139: }
140: }
141: }
142:
143: $TypeFilter = ""
144: if ($Types -eq $null -or $Types.Length -eq 0)
145: { 146: $TypeFilter = "\..*"
147: }
148: elseif ($Types.Length -gt 0)
149: { 150: for($i=0; $i -lt $Types.Length; $i++)
151: { 152: $TypeFilter += "(\{0})" -f $Types[$i] 153: if( $i -lt ($Types.Length - 1))
154: { 155: $TypeFilter += "|"
156: }
157: }
158: }
159: $TrackFilter
160: $TypeFilter
161:
162: $RegexString = "^(?<TRACK>({0}))(?<INDEX>\d{2})(?<EXT>({1}))$" ` 163: -f $TrackFilter, $TypeFilter, "{2}" 164: $FilterMatches = $FileNames | Where-Object {$_ -match $RegexString} 165: Write "FilterMatches"
166: $FilterMatches
167:
168:
169:
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