This patch replaces current utf decoder with a new one, which is ~50 lines shorter and should be easier to understand. Parsing 5 and 6 sequences, if necessary, requires trivial modification of UTF_SIZ constant and utfbyte, utfmask, utfmin, utfmax arrays.

These capabilities inform to programs how print in local printer of the terminal.

Add some note about the main reason why st is still that big.

This is very usefull in order to can select what is sent to the plumber.

These new combinations generate the same behaviour (basically) of vt102. It is a good way of communicating st with other programs. [0] http://www.vt100.net/docs/vt102-ug/chapter2.html

Since we are using xmalloc, xrealloc ..., then it is not logical call directly to strdup. Signed-off-by: Roberto E. Vargas Caballero <k0ga@shike2.com>

This sequence is very useful because allows comunicate the content of the terminal to another program.

This sequence print the current line. It is different to the 'printer on' sequence, where all the characters that arrive to the terminal are printer. Here only the ascii characters are printed.

The patch to add w3img support destroys our way to handle fps and so stop wasting resources on fast scrolling. Due to w3img being a hack to display images in an ugly way, is there no need to support this. Use some real way to display images.

It is not defined when lateral effects of expressions are calculated, so an expression as: --last >= gp && !(selected(last - gp, y) is non portable.

This sequence control when the printer is enabled or disabled. This sequence control the behaviour of the -o option.

The error condition was duplicated in two different switches. This new version centralized the error handling in only one place.

The AppMode and AsciiMode were inverted in the definition of this combination. Signed-off-by: Christoph Lohmann <20h@r-36.net>

If CONTROL + INSERT inserts a line then it seems natural CONTROL + DELETE removes a line.

Before this patch draw() calls drawregion which calls xdraws and then updates whole window in one call thus overdrawing anything drawn by w3mimgdisplay. After moving XCopyArea to xdraws it only updates the regions which are being updated by XftDraw* functions. It may do a few more calls to XCopyArea with this patch. Signed-off-by: Amadeusz Sławiński <amade@asmblr.net>