diff options
| -rw-r--r-- | doc/gets.n | 8 | ||||
| -rw-r--r-- | doc/read.n | 10 |
2 files changed, 10 insertions, 8 deletions
@@ -61,7 +61,7 @@ continued multi-byte sequence at position 1 (\fBA \\xC3 B\fR): .PP File creation for example .CS -% set f [open test_A_195_B.txt wb]; puts -nonewline $f A\xC3B; close $f +% set f [open test_A_195_B.txt wb]; puts -nonewline $f A\\xC3B; close $f .CE Encoding error example .CS @@ -71,7 +71,7 @@ file384b6a8 % catch {gets $f} e d 1 % set d --data A -code 1 -level 0 +-code 1 -level 0 -errorstack {INNER {invokeStk1 gets file384b6a8}} -errorcode {POSIX EILSEQ {invalid or incomplete multibyte or wide character}} -errorinfo {...} -errorline 1 @@ -81,7 +81,9 @@ file384b6a8 % gets $f AÃB .CE -ToDo: -data is TIP 653 and may be removed here or explained. +Compared to \fBread\fR, any already decoded data is not consumed. +The file position is still at 0 and the recovery \fBgets\fR returns also the +already well decoded leading data. .SH "EXAMPLE" This example reads a file one line at a time and prints it out with the current line number attached to the start of each line. @@ -54,7 +54,8 @@ which \fBfconfigure\fR will alter input. .PP Encoding errors may exist, if the encoding profile \fBstrict\fR is used. Encoding errors are special, as an eventual introspection or recovery is -possible by changing to an encoding which accepts the data. +possible by changing to an encoding (or encoding profile), which accepts +the data. An encoding error is reported by the POSIX error code \fBEILSEQ\fR. .PP In blocking mode, the error is directly thrown, even, if there is a @@ -75,7 +76,7 @@ continued multi-byte sequence at position 1 (\fBA \\xC3 B\fR): File creation for examples . .CS -% set f [open test_A_195_B.txt wb]; puts -nonewline $f A\xC3B; close $f +% set f [open test_A_195_B.txt wb]; puts -nonewline $f A\\xC3B; close $f .CE Blocking example . @@ -86,7 +87,7 @@ file35a65a0 % catch {read $f} e d 1 % set d --data A -code 1 -level 0 +-code 1 -level 0 -errorstack {INNER {invokeStk1 read file35a65a0}} -errorcode {POSIX EILSEQ {invalid or incomplete multibyte or wide character}} -errorinfo {...} -errorline 1 @@ -110,12 +111,11 @@ A % catch {read $f} e d 1 % set d --data {} -code 1 -level 0 +-code 1 -level 0 -errorstack {INNER {invokeStk1 read file384b228}} -errorcode {POSIX EILSEQ {invalid or incomplete multibyte or wide character}} -errorinfo {...} -errorline 1 .CE -ToDo: -data is TIP 653 and may be removed here or explained. .SH "USE WITH SERIAL PORTS" '\" Note: this advice actually applies to many versions of Tcl .PP |