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Diffstat (limited to 'contrib/string/string_io.doc')
| -rw-r--r-- | contrib/string/string_io.doc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/contrib/string/string_io.doc b/contrib/string/string_io.doc new file mode 100644 index 00000000000..af4b9747859 --- /dev/null +++ b/contrib/string/string_io.doc @@ -0,0 +1,16 @@ +These output functions can be used as substitution of the standard text +output functions to get the value of text fields printed in the format +used for C strings. This allows the output of queries or the exported +files to be processed more easily using standard unix filter programs +like perl or awk. + +If you use the standard functions instead you could find a single tuple +splitted into many lines and the tabs embedded in the values could be +confused with those used as field delimters. + +My function translates all non-printing characters into corresponding +esacape sequences as defined by the C syntax. All you need to reconstruct +the exact value in your application is a corresponding unescape function +like the string_input defined in the source code. + +Massimo Dal Zotto <dz@cs.unitn.it> |