Avoid a segfault that may occur if getstr_fixscr() changes the scroll
offset to something outside the input boundaries (e.g. if a word that is
only partly visible is killed via backward-kill-word).
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Rename static showstring() function to getstr_print(), rename
ins_char() to getstr_ins_char() and del_char() to getstr_del_char().
* Refactor out getstring data structure initialization and window
scrolling routines.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
Move getstring() related stuff into a separate file as a first step on
our way to UTF-8 support for line editing helpers.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
