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Top Forums Shell Programming and Scripting awk: Force "escaped" representation of a field Post 302544470 by IvanMalison on Wednesday 3rd of August 2011 11:55:37 PM
Old 08-04-2011
awk: Force "escaped" representation of a field

Is there any way to get the escaped version of a field in awk? For those that don't understand the question, here is a clarifying example. Lets say a field $1 gives me the string "(dumb'" (I've changed the delimiter to be something other than whitespace). If i use that value in a command in awk as follows... awk{system("echo " $1)}' I get an error Because of the parenthesis and the apostrophe. What I want is to get an escaped version of $1 (which would be \(dumb\' in this case). Is this possible?
 

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PG_ESCAPE_IDENTIFIER(3) 												   PG_ESCAPE_IDENTIFIER(3)

pg_escape_identifier - Escape a identifier for insertion into a text field

SYNOPSIS
string pg_escape_identifier ([resource $connection], string $data) DESCRIPTION
pg_escape_identifier(3) escapes a identifier (e.g. table, field names) for quering the database. It returns an escaped identifier string for PostgreSQL server. pg_escape_identifier(3) adds double quotes before and after data. Users should not add double quotes. Use of this function is recommended for identifier parameters in query. For SQL literals (i.e. parameters except bytea), pg_escape_literal(3) or pg_escape_string(3) muse be used. For bytea type fields, pg_escape_bytea(3) must be used instead. Note This function has internal escape code and can also be used with PostgreSQL 8.4 or less. PARAMETERS
o $connection - PostgreSQL database connection resource. When $connection is not present, the default connection is used. The default connection is the last connection made by pg_connect(3) or pg_pconnect(3). o $data - A string containing text to be escaped. RETURN VALUES
A string containing the escaped data. EXAMPLES
Example #1 pg_escape_identifier(3) example <?php // Connect to the database $dbconn = pg_connect('dbname=foo'); // Escape the table name data $escaped = pg_escape_identifier($table_name); // Select rows from $table_name pg_query("SELECT * FROM {$escaped};"); ?> SEE ALSO
pg_escape_literal(3), pg_escape_bytea(3), pg_escape_string(3). PHP Documentation Group PG_ESCAPE_IDENTIFIER(3)
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