Thread: String Literals

ive been screwing with this for 3 hours now:

Ive got file x:

"clients.txt"
{
"version" "1"
"players"
{

i want to remove

"version" "1"

with python

string literal for that line SHOULD be:

Code:

\n\t"version"\t\t"1"

but its not...

Code:

\t"version"\t\t"1"

works but leaves the new line... which defeats the purpose.
\n removes the line
but when combined with the rest \t"version"\t\t"1"
fails


thoughts?

It really depends on how your using python to read the file. Could you give more context?

code using to remove lines:

Code:

import os
import sys
import fileinput


textToSearchFor = '{\n\t"version"\t\t"1"'
textToReplaceWith = '{'
fileToSearch = 'clients.txt'

oldFileName = 'old_' + fileToSearch
tempFileName = 'temp_' + fileToSearch

# If there's already an 'old_' prefixed backup file there from
# a previous run, remove it...
if os.path.isfile( oldFileName ):
	os.remove( oldFileName )

tempFile = open( tempFileName, 'w' )

for line in fileinput.input( fileToSearch ):
  tempFile.write( line.replace( textToSearchFor, textToReplaceWith ) )

tempFile.close()

# Rename the original file by prefixing it with 'old_'
os.rename( fileToSearch, oldFileName )

# Rename the temporary file to what the original was named...
os.rename( tempFileName, fileToSearch )

Example Clients file:

Code:

"clients.txt"
{
  "version"  "1"

  // This key group lists all your client players
  "players"
  {
   // This must be a unique client name
   "...X..."
   {
     // Client real name
     "name"  "...XXXX..."
     // Steam ID for client
     "steam"  "STEAM_0:X:XXXXX"
     // These are personal access flags for a player
     "flags"
     {
      "Immunity"  "b"
     }
     "groups"
     {
      "Admin"  "01"
     }
   }
   // This must be a unique client name
   "...Y..."
   {
     // Client real name
     "name"  "...YYYY..."
     // Steam ID for client
     "steam"  "STEAM_0:Y:YYYY"
     // These are personal access flags for a player
     "flags"
     {
      "Immunity"  "b"
     }
     "groups"
     {
      "Admin"  "01"
     }
   }
  }

  // These are global groups of flags that can be assigned to clients
  "groups"
  {
   "Admin"
   {
     "01"  "A B C D E F G H I J K L M N O P Q R S T U V W X Y Z a b c d"
     "01"  "e f g i k l m o p q r s t v w x y z q2 q3 admin spray grav"
     "01"  "pban client"     
   }
  }

}

Clients file with correct lines removed: .

"clients.txt"
{
"version" "1" <-removed

// This key group lists all your client players <-removed
"players" <-removed
{ <-removed
// This must be a unique client name
"...X..."
{
// Client real name
"name" "...XXXX..."
// Steam ID for client
"steam" "STEAM_0:X:XXXXX"
// These are personal access flags for a player
"flags"
{
"Immunity" "b"
}
"groups"
{
"Admin" "01"
}
}
// This must be a unique client name
"...Y..."
{
// Client real name
"name" "...YYYY..."
// Steam ID for client
"steam" "STEAM_0:Y:YYYY"
// These are personal access flags for a player
"flags"
{
"Immunity" "b"
}
"groups"
{
"Admin" "01"
}
}
}

// These are global groups of flags that can be assigned to clients
"groups"
{
"Admin"
{
"01" "A B C D E F G H I J K L M N O P Q R S T U V W X Y Z a b c d"
"01" "e f g i k l m o p q r s t v w x y z q2 q3 admin spray grav"
"01" "pban client"
}
} <-removed

}

Your processing the file one line at a time, which is why your text to replace which includes a newline doesn't match (when you process a file one line at a time, it breaks the text on the newline and doesn't include the newline, hence the lack of a match).

Instead of:

Code:

for line in fileinput.input( fileToSearch ):
  tempFile.write( line.replace( textToSearchFor, textToReplaceWith ) )

Try something more along the lines of:

Code:

# Read in the entire file as one string
contents = open(fileToSearch).read();
tempFile.write(contents.replace(textToSearchFor, textToReplaceWith));

Originally Posted by Ewok

Your processing the file one line at a time, which is why your text to replace which includes a newline doesn't match (when you process a file one line at a time, it breaks the text on the newline and doesn't include the newline, hence the lack of a match).

Instead of:

Code:

for line in fileinput.input( fileToSearch ):
  tempFile.write( line.replace( textToSearchFor, textToReplaceWith ) )

Try something more along the lines of:

Code:

# Read in the entire file as one string
contents = open(fileToSearch).read();
tempFile.write(contents.replace(textToSearchFor, textToReplaceWith));

yep that did it lol, thank you thank you...
Last time i work on something at 5am