[asterisk-bugs] [Asterisk 0016461]: [patch] for reading and writing to text file

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16461 
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Reported By:                skyman
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16461
Category:                   Functions/NewFeature
Reproducibility:            N/A
Severity:                   feature
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.6.1.11 
JIRA:                       SWP-1478 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-12-17 09:55 CST
Last Modified:              2010-05-27 04:48 CDT
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Summary:                    [patch] for reading and writing to text file
Description: 
this patch adds 7 functions in func_env :
FILE_FORMAT
FILE_COUNT_LINE
FILE_READ_LINE
FILE_WRITE
FILE_WRITE_LINE
FILE_APPEND
FILE_APPEND_LINE
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 (0122548) skyman (reporter) - 2010-05-27 04:48
 https://issues.asterisk.org/view.php?id=16461#c122548 
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I have not done the "replace" just "write" and "append". I change to the
"replace".

I propose that :

Read mode (char) :
------------------
;reads the the entire content of the file.
exten => s,1,Set(foo=${FILE(/tmp/test.txt)})

;reads the 10th to end of file.
exten => s,1,Set(foo=${FILE(/tmp/test.txt,10)})

;reads the 10th to 19th character in the file.
exten => s,1,Set(foo=${FILE(/tmp/test.txt,10,20)})


Read mode (Line) :
------------------
; reads the 3th line of the file.
exten => s,1,Set(foo=${FILE(/tmp/test.txt,L3,L1)})

; reads the 3th and 4th line of the file.
exten => s,1,Set(foo=${FILE(/tmp/test.txt,L3,L2)})

; reads all lines of the file from the third .
exten => s,1,Set(foo=${FILE(/tmp/test.txt,L3)})

; reads the last three lines  of the file.
exten => s,1,Set(foo=${FILE(/tmp/test.txt,L-1,L3)})


Replace mode (char) :
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; Replace the first char of the file with "bar"
Set(FILE(/tmp/foo.txt,1,1)=bar)

; Replace 10 chars begining at the 19th of the file with "bar"
Set(FILE(/tmp/foo.txt,19,10)=bar)

; Replace all chars from the 19th with "bar"
Set(FILE(/tmp/foo.txt,19,-1)=bar)

; Append "bar"
Set(FILE(/tmp/foo.txt,-1)=bar)


Replace mode (Line) :
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; Replace the first line of the file with "bar"
Set(FILE(/tmp/foo.txt,L1,L1)=bar)

; Replace the last line of the file with "bar"
Set(FILE(/tmp/foo.txt,L-1,L1)=bar)

; Append "bar" to the file + a newline
Set(FILE(/tmp/foo.txt,L0)=bar)
I think it's better like that :
Set(FILE(/tmp/foo.txt,L-1)=bar)
and/or
Set(FILE(/tmp/foo.txt,L-1,L0)=bar)


for the last example
; Tricky: truncate the file and write "bar" to the file (simply, replace
lines 1-999999 with "bar")
Set(FILE(/tmp/foo.txt,L1,L999999)=bar)
I think it's better like that :
Set(FILE(/tmp/foo.txt,L1,L-1)=bar)
and/or
Set(FILE(/tmp/foo.txt,L0,L-1)=bar)

your opinion ? 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-05-27 04:48 skyman         Note Added: 0122548                          
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