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File I/O and String Manupulation

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  #1  
Old June 17th, 2004, 10:48 PM
alee7 alee7 is offline
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Question File I/O and String Manupulation
5241.1 To all VB PRogrammers

Need some kind asistance on coding on string manupulation and file I/O procedure i'm working on.

I 've a master file that i need to read and extract out all lines that contain the char ARC and output it to a new file.

However, the criteria for the extraction is to consider only lines that contains char ARC in 4 consecutive rows or in 8 consecutive rows ONLY. If there are 8 consecutive rows that contain the char "ARC" there should be another line above the first line and after the 4th line that holds the character COLOR X.

If there are 4 consecutive rows that contains the char "ARC" then there should be an additional above the first line that holds the char COLOR X.

example

Extract of Master file

; C3C3
CIRCLE 8.12875,7.35611 0.08990
; C3C6
ARC C 8.7924,7.28173 8.7924,7.11296 8.96118,7.28173
; C3C6
ARC C 8.7924,7.28173 8.96118,7.28173 8.7924,7.4505
; C3C6
ARC C 8.7924,7.28173 8.7924,7.4505 8.62363,7.28173
; C3C6
ARC C 8.7924,7.28173 8.62363,7.28173 8.7924,7.11296
; C3D1
CIRCLE 7.88413,6.33096 0.13690

;C3H3
ARC C 8.81774,2.61654 8.81774,2.78531 8.64897,2.61654
; C3H3
ARC C 8.81774,2.61654 8.81774,2.44776 8.98651,2.61654
; C3H3
ARC C 8.81774,2.61654 8.98651,2.61654 8.81774,2.78531
; C3H3
ARC C 8.81774,2.61654 8.64897,2.61654 8.81774,2.44776
; C3H6
ARC C 8.89212,2.28471 8.72334,2.28471 8.89212,2.11594
; C3H6
ARC C 8.89212,2.28471 8.89212,2.45349 8.72334,2.28471
; C3H6
ARC C 8.89212,2.28471 8.89212,2.11594 9.06089,2.28471
; C3H6
ARC C 8.89212,2.28471 9.06089,2.28471 8.89212,2.45349
; C4J1
CIRCLE 7.16923,2.13269 0.10952

---do not consider the 2 "ARC" lines below because it does not meet criteria.

; J3H1
ARC C 8.26843,2.36211 8.27096,2.41752 8.21293,2.36236
; J3H1
ARC C 8.26843,2.36424 8.21293,2.36236 8.27096,2.30882
; J3H1
LINE 8.54108,2.28267 8.54108,2.23772

Output expected.

---for 4 consecutive rows--

COLOR X
ARC C 8.7924,7.28173 8.7924,7.11296 8.96118,7.28173
ARC C 8.7924,7.28173 8.96118,7.28173 8.7924,7.4505
ARC C 8.7924,7.28173 8.7924,7.4505 8.62363,7.28173
ARC C 8.7924,7.28173 8.62363,7.28173 8.7924,7.11296


---- For 8 consecutive rows------

COLOR X
ARC C 8.81774,2.61654 8.81774,2.78531 8.64897,2.61654
ARC C 8.81774,2.61654 8.81774,2.44776 8.98651,2.61654
ARC C 8.81774,2.61654 8.98651,2.61654 8.81774,2.78531
ARC C 8.81774,2.61654 8.64897,2.61654 8.81774,2.44776
COLOR X
ARC C 8.89212,2.28471 8.72334,2.28471 8.89212,2.11594
ARC C 8.89212,2.28471 8.89212,2.45349 8.72334,2.28471
ARC C 8.89212,2.28471 8.89212,2.11594 9.06089,2.28471
ARC C 8.89212,2.28471 9.06089,2.28471 8.89212,2.45349


Hope someone can further assist.

Whatever help is much appreciated.



Thanks a million!

5241.1 To all VB PRogrammers

Need some kind asistance on some string manupulation and file I/O i'm working on.

I 've a master file that i need to read and extract out all lines that contain the char ARC and output it to a new file.

However, the criteria for the extraction is to consider only lines that contains char ARC in 4 consecutive rows or in 8 consecutive rows ONLY. If there are 8 consecutive rows that contain the char "ARC" there should be another line above the first line and after the 4th line that holds the character COLOR X.

If there are 4 consecutive rows that contains the char "ARC" then there should be an additional above the first line that holds the char COLOR X.

example

Extract of Master file

; C3C3
CIRCLE 8.12875,7.35611 0.08990
; C3C6
ARC C 8.7924,7.28173 8.7924,7.11296 8.96118,7.28173
; C3C6
ARC C 8.7924,7.28173 8.96118,7.28173 8.7924,7.4505
; C3C6
ARC C 8.7924,7.28173 8.7924,7.4505 8.62363,7.28173
; C3C6
ARC C 8.7924,7.28173 8.62363,7.28173 8.7924,7.11296
; C3D1
CIRCLE 7.88413,6.33096 0.13690

;C3H3
ARC C 8.81774,2.61654 8.81774,2.78531 8.64897,2.61654
; C3H3
ARC C 8.81774,2.61654 8.81774,2.44776 8.98651,2.61654
; C3H3
ARC C 8.81774,2.61654 8.98651,2.61654 8.81774,2.78531
; C3H3
ARC C 8.81774,2.61654 8.64897,2.61654 8.81774,2.44776
; C3H6
ARC C 8.89212,2.28471 8.72334,2.28471 8.89212,2.11594
; C3H6
ARC C 8.89212,2.28471 8.89212,2.45349 8.72334,2.28471
; C3H6
ARC C 8.89212,2.28471 8.89212,2.11594 9.06089,2.28471
; C3H6
ARC C 8.89212,2.28471 9.06089,2.28471 8.89212,2.45349
; C4J1
CIRCLE 7.16923,2.13269 0.10952

---do not consider the 2 "ARC" lines below because it does not meet criteria.

; J3H1
ARC C 8.26843,2.36211 8.27096,2.41752 8.21293,2.36236
; J3H1
ARC C 8.26843,2.36424 8.21293,2.36236 8.27096,2.30882
; J3H1
LINE 8.54108,2.28267 8.54108,2.23772

Output expected.

---for 4 consecutive rows--

COLOR X
ARC C 8.7924,7.28173 8.7924,7.11296 8.96118,7.28173
ARC C 8.7924,7.28173 8.96118,7.28173 8.7924,7.4505
ARC C 8.7924,7.28173 8.7924,7.4505 8.62363,7.28173
ARC C 8.7924,7.28173 8.62363,7.28173 8.7924,7.11296


---- For 8 consecutive rows------

COLOR X
ARC C 8.81774,2.61654 8.81774,2.78531 8.64897,2.61654
ARC C 8.81774,2.61654 8.81774,2.44776 8.98651,2.61654
ARC C 8.81774,2.61654 8.98651,2.61654 8.81774,2.78531
ARC C 8.81774,2.61654 8.64897,2.61654 8.81774,2.44776
COLOR X
ARC C 8.89212,2.28471 8.72334,2.28471 8.89212,2.11594
ARC C 8.89212,2.28471 8.89212,2.45349 8.72334,2.28471
ARC C 8.89212,2.28471 8.89212,2.11594 9.06089,2.28471
ARC C 8.89212,2.28471 9.06089,2.28471 8.89212,2.45349


Hope someone can further assist.

Whatever help is much appreciated.



Thanks a million!
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  #2  
Old June 19th, 2004, 12:23 PM
Doug G Doug G is offline
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What strange requirements! The overall design might warrant a revisit

You will have to write some code that opens your file and starts reading line by line and run validation tests as each line is read.
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