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2019-03-29vi: bug fixesJarno Mäkipää
Style cleanups: Removing whitespaces at end of lines, hopefully reduces git am warnings Bug fixes: fix segfault if file did not exist, now creates one empty line fix insert mode text not showing on start of line fix append on empty line fix cursor move right on empty line
2019-03-28vi.c improved utf-8 supportJarno Mäkipää
Now calculates utf-8 rune width properly before trying to print on screen. works with test1.txt and test2.txt on tests/files/utf8 folder with 0x0300-0x036F combining chars Uses mbtowc and wcwidth to calculate width of rune. These both should be implemented on c runtime that conforms POSIX-1.2001. Different c runtimes might have different level of support to combining char ranges etc... I think there is no standard way to calculate utf-8 rune width without converting it first to widechar. And i think conversion to widechar just to calculate width is silly, since all write calls can be done with utf8 directly (on utf8 locales ofc), but in order to calculate them yourself without pointless conversion, one would need to write variable byte lookup array for binary searching weird ranges and make sure it works with big-endian systems too... By the way running ./watch ./cat tests/files/utf8/japan.txt does not print the text for some reason, but other test data does... I was checking how well original crunch_str works and noticed it. -Jarno
2019-03-24vi: Code style cleanupJarno Mäkipää
Variable initialization to start of blocks Space after if,for,while: if() -> if () Space after comma on function calls: write(fd,buf,count); -> write(fd, buf, count); Spaces surrounding variable initialization Pointer * binding to variable instead of type: int* i -> int *i Spaces surrounding compare operators No spaces surrounding arimetic operators Some aligntment whitespace fixes Still messy and needs more cleanup, but there is bigger issues to solve first.
2019-03-23vi: Removed C99/GNU99 style for loop initializersJarno Mäkipää
Removed for(int i = 0;....) style loop initializers to be consistant with project style. Removed few unused global variables Added 2 empty white space lines back to CONFIG comment section.
2019-03-23vi.c double_list based implementation.Jarno Mäkipää
Has beginnings of reading file, saving file, hjkl movement, insert, ex (only w, wq, q!), search with /, some other normal mode actions (dd, w, b, e), some utf8 support Everything is still very unfinished and partly behaves wrongly comparing to original vi. But simple tasks like modifying short config files should be possible. Some things like draw_page needs serious refactor since it now writes whole screen after every keypress. Didint bother to refactor yet if linked list needs to be replaced with something else...
2015-12-23Factor out draw_str() and friends.Rob Landley
2015-12-19Redo linestack to handle embedded NULs.Rob Landley
2015-12-19Start of vi.Rob Landley