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FWRITE

FWRITE writes text to a file. There are two variants of usage, as follows

(1) Opening a file for writing (a), writing into that file (b), closing that file (c).

(2) Opening, writing and closing in one single command.

If FWRITE is called for many times with always the same file, variant (1) with one call of (1a), many of (1b) and finally one of (1c) is faster. Variant (2) is simpler to use as you do not have to take care that the file is opened before and closed after writing.

Syntax

(1a) Open a file for writing

leo-grammar
CC "AdoScript" FWRITE open file:filename
    [ append:boolValue] [ binary:boolValue] [ base64:boolValue ] .
# --> RESULT ecode:intValue
CC "AdoScript" FWRITE open file:filename
    [ append:boolValue] [ binary:boolValue] [ base64:boolValue ] .
# --> RESULT ecode:intValue

(1b) Write into a file which has already be opened

leo-grammar
CC "AdoScript" FWRITE text:strValue [ base64:boolValue ] .
#--> RESULT ecode:intValue written:intValue
CC "AdoScript" FWRITE text:strValue [ base64:boolValue ] .
#--> RESULT ecode:intValue written:intValue

(1c) Close a file which has been opened with FWRITE open

leo-grammar
CC "AdoScript" FWRITE close .
# --> RESULT ecode:intValue
CC "AdoScript" FWRITE close .
# --> RESULT ecode:intValue

(2) Open, write into and close at once

leo-grammar
CC "AdoScript" FWRITE file:filename text:strValue
    [ append:boolValue] [ binary:boolValue] [ base64:boolValue] .
#-->RESULT ecode:intValue written:intValue
CC "AdoScript" FWRITE file:filename text:strValue
    [ append:boolValue] [ binary:boolValue] [ base64:boolValue] .
#-->RESULT ecode:intValue written:intValue

Parameters

  • file (strValue) - the name of the file
  • text (strValue) - the text to be written into the file
  • append (boolValue, optional) - without specifying the argument append, a new file is created. If a file with the specified name already exists, it is deleted first. By passing the argument append, an exsiting file is not deleted but the text is appended at the end of the file.
  • binary (boolValue, optional) - without specifying the option binary (which then means text mode), "\n" (carriage return) is replaced by "\r\n". If you write strings which are containing just "\n" as newline separator, this replacement is correct, as in files "\r\n" is used as newline separator.
  • base64 (boolValue, optional) - if specified, it means that the text string value is base64 encoded and shall be written decoded, i.e. the original (binary) text shall be written. It does not mean, that the text in the file will be base64 encoded.
  • open (modifier) - used to open file with variant 1
  • close (modifier) - used to close file with variant 1

Returns

  • ecode (intValue) - has the value 0 if no errors occurred, otherwise a value != 0.
  • written (intValue) - contains the number of bytes which have been written.

Details

Relative paths relate to the installation directory.

Without specifying the argument append, a new file is created. If a file with the specified name already exists, it is deleted first. By passing the argument append, an exiting file is not deleted but the text is appended at the end of the file.

Multi-line STRING attribute values in ADOxx already have "\r\n" as newline separator. So without specifying binary, you get "\r\r\n" as newline separator in the file. So you should specify binary if the written text is an multi-line STRING attribute value.

See Also

Examples

asc
CC "AdoScript" FWRITE file:"C:\\temp\\text.txt" text:"Hello World"

CC "AdoScript" FREAD file:"C:\\temp\\text.txt"

CC "AdoScript" INFOBOX (text)
CC "AdoScript" FWRITE file:"C:\\temp\\text.txt" text:"Hello World"

CC "AdoScript" FREAD file:"C:\\temp\\text.txt"

CC "AdoScript" INFOBOX (text)

Creates a file in the temp folder and writes 'Hello world' into and then the file is read again and shown in an INFOBOX.

Versions and Changes

Available since ADOxx 1.3