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| -rw-r--r-- | README | 47 |
1 files changed, 31 insertions, 16 deletions
@@ -407,10 +407,8 @@ and their current support in vis. editing operations (as they are likely unrelated and thus should be individually reversible). - The repeat command '.' currently only works for operators. This for - example means that inserting text can not be repeated (i.e. inserted - again). The same restriction also applies to commands which are not - implemented in terms of operators, such as 'o', 'O', 'J' etc. + The repeat command '.' works for all operators and is able to repeat + the last insertion or replacement. Macros ------ @@ -435,6 +433,7 @@ and their current support in vis. :new open an empty window, arrange horizontally :vnew open an empty window, arrange vertically :wq write changes then close window + :xit like :wq but write only when changes have been made :write write current buffer content to file :saveas save file under another name :set set the options below @@ -459,23 +458,37 @@ and their current support in vis. syntax name - use syntax definition given (e.g. "c") or disable syntax - highlighting if no such definition exists (e.g :set syntax off) + use syntax definition given (e.g. "c") or disable syntax + highlighting if no such definition exists (e.g :set syntax off) + + Each command can be prefixed with a range made up of a start and + an end position as in start,end. Valid position specifiers are: + + . start of the current line + +n and -n start of the line relative to the current line + 'm position of mark m + /pattern/ first match after current position + + If only a start position without a command is given then the cursor + is moved to that position. Additionally the following ranges are + predefined: + + % the whole file, equivalent to 1,$ + * the current selection, equivalent to '<,'> The substitute command is recognized but not yet implemented. The '!' command to filter text through an external program is also planned. - At some point the range syntax should probably also be supported. History support, tab completion and wildcard expansion are other - worthwhile features. + worthwhile features. However implementing them inside the editor + feels wrong. - Tab <-> Space - ------------- + Tab <-> Space and Line endings \n vs \r\n + ----------------------------------------- - Currently there is no expand tab functionality i.e. they are always - inserted as is. For me personally this is no problem at all. Tabs - should be used for indention! That way everybody can configure their - preferred tab width whereas spaces should only be used for alignment. + Tabs can optionally be expaned to a configurable number of spaces. + The first line ending in the file determines what will be inserted + upon a line break (defaults to \n). Jump list and change list ------------------------- @@ -526,13 +539,15 @@ WARNING: There are probably still some bugs left which could corrupt your A quick overview over the code structure to get you started: - config.def.h definition of key bindings, commands, syntax highlighting etc. + config.def.h definition of key bindings, commands, syntax highlighting vis.c vi(m) specific editor frontend, program entry point editor.[ch] screen / window / statusbar / command prompt management window.[ch] window drawing / syntax highlighting / cursor placement + text.[ch] low level text / marks / {un,re}do / piece table implementation text-motions.[ch] movement functions take a file position and return a new one text-objects.[ch] functions take a file position and return a file range - text.[ch] low level text / marks / {un,re}do / piece table implementation + buffer.[ch] dynamically growing buffer used for registers and macros + ring-buffer.[ch] fixed size ring buffer used for the jump list Hope this gets the interested people started. Feel free to ask questions if something is unclear! There are still a lot of bugs left to fix, but |