useful, but easy to implement.

possible. Thanks!

variables. Thanks! xinit() and ttynew() had to be switched in their call-appearance. Otherwise xw.win is not set.

not emulate the vt100 behaviour of selecting all whitespaces. Thanks!

write can write less bytes than we request, so it is necessary check the return value, in case of error print a message and don't continnue writing in the file. --- st.c | 39 ++++++++++++++++++++++++++++++--------- 1 file changed, 30 insertions(+), 9 deletions(-)

should really learn opthalmology instead. :O

This sequence was used by DEC personal in to for verifying the screen adjust of terminals. It is the unique test sequence implemented by all the emulators, and I think it is because they want be conforms with vttest which uses this sequence in some tests. --- st.c | 31 +++++++++++++++++++++++-------- 1 file changed, 23 insertions(+), 8 deletions(-)

If vt100_0 is a automatic variable then it is initializated in each call to tsetchar, but if the variable is static it is initializated only in compile time. --- st.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

Do not send NUL character in the identification (use (sizeof(VT102ID) - 1), and finish the sequence once you execute it. --- st.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)

These sequences are used by the host in order to can detect which kind of terminal is connected. St will answer like a vt102 terminal with this patch. --- st.c | 9 +++++++++ 1 file changed, 9 insertions(+)

Non handled codes must be ignored, except in graphic mode. Also STR sequences have higher priority than control codes, so they must be handled before of them. --- st.c | 160 ++++++++++++++++++++++++++++++++++++------------------------------ 1 file changed, 87 insertions(+), 73 deletions(-)

SI and SO allows change the G0 and G1 selection. This implementation is not full vt100 compatible, but it is complatible with linux virtual terminal implementation. For full vt100 compatibility we need remake a lot of stuff relate to the different charmaps. --- st.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)

These control codes reset any escape sequence already initialised. --- st.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)

Add the documentation from the vt100 manual programmer: Control Octal Action Taken Character Code ------------------------------------------- NUL 000 Ignored on input (not stored in input buffer; see full duplex protocol). ENQ 005 Transmit answerback message. BEL 007 Sound bell tone from keyboard. BS 010 Move the cursor to the left one character position, unless it is at the left margin, in which case no action occurs. HT 011 Move the cursor to the next tab stop, or to the right margin if no further tab stops are present on the line. LF 012 This code causes a line feed or a new line operation. (See new line mode). VT 013 Interpreted as LF. FF 014 Interpreted as LF. CR 015 Move cursor to the left margin on the current line. SO 016 Invoke G1 character set, as designated by SCS control sequence. SI 017 Select G0 character set, as selected by ESC ( sequence. XON 021 Causes terminal to resume transmission. XOFF 023 Causes terminal to stop transmitted all codes except XOFF and XON. CAN 030 If sent during a control sequence, the sequence is immediately terminated and not executed. It also causes the error character to be displayed. SUB 032 Interpreted as CAN. ESC 033 Invokes a control sequence. DEL 177 Ignored on input (not stored in input buffer). -------------------------------------------- --- st.c | 28 +++++++++++++++++++--------- 1 file changed, 19 insertions(+), 9 deletions(-)