diff options
Diffstat (limited to 'context/data/scite/lexers/scite-context-lexer.lua')
| -rw-r--r-- | context/data/scite/lexers/scite-context-lexer.lua | 46 |
1 files changed, 25 insertions, 21 deletions
diff --git a/context/data/scite/lexers/scite-context-lexer.lua b/context/data/scite/lexers/scite-context-lexer.lua index 457b855d2..1218d1f51 100644 --- a/context/data/scite/lexers/scite-context-lexer.lua +++ b/context/data/scite/lexers/scite-context-lexer.lua @@ -16,25 +16,13 @@ local info = { -- change in 3.03 is that no longer a script can be specified. This means that instead -- of loading the extensions via the properties file, we now need to load them in our -- own lexers, unless of course we replace lexer.lua completely (which adds another --- installation issue). The loading takes place with: --- --- if not lexer._CONTEXTEXTENSIONS then --- dofile(_LEXERHOME .. "/scite-context-lexer.lua") --- end --- --- So, where pre 3.03 we loaded that file and in that file the original lexing code, we --- now do the reverse. I also moved some helpers here because the new module structure --- hides some (now local) functions. +-- installation issue). -- -- Another change has been that _LEXERHOME is no longer available. It looks like more and -- more functionality gets dropped so maybe at some point we need to ship our own dll/so --- files. For instance, I'd like to have access to the current filename etc. --- --- An increase in the number of built in styles made our own crash (probably due to some --- maximum being reached) so some measures has been taken. We now get pretty close to --- replacing the main lexer.lua file. --- --- Also needed: preamble scan once. Can be handled in caller below and _M.preamble. +-- files. For instance, I'd like to have access to the current filename and other scite +-- properties. For instance, we could cache some info with each file, if only we had +-- knowledge of what file we're dealing with. -- -- For huge files folding can be pretty slow and I do have some large ones that I keep -- open all the time. Loading is normally no ussue, unless one has remembered the status @@ -42,16 +30,32 @@ local info = { -- brought down loading of char-def.lua from 14 sec => 8 sec. Replacing the word_match -- function and optimizing the lex function gained another 2+ seconds. A 6 second load -- is quite ok for me. - +-- +-- When the lexer path is copied to the textadept lexer path, and the theme definition to +-- theme path (as lexer.lua), the lexer works there as well. When I have time and motive +-- I will make a proper setup file to tune the look and feel a bit and associate suffixes +-- with the context lexer. The textadept editor has a nice style tracing option but lacks +-- the tabs for selecting files that scite has. It also has no integrated run that pipes +-- to the log pane (I wonder if it could borrow code from the console2 project). Interesting +-- is that the jit version of textadept crashes on lexing large files (and does not feel +-- faster either). +-- -- Function load(lexer_name) starts with _M.WHITESPACE = lexer_name..'_whitespace' which -- means that we need to have it frozen at the moment we load another lexer. Because spacing -- is used to revert to a parent lexer we need to make sure that we load children as late -- as possible in order not to get the wrong whitespace trigger. This took me quite a while -- to figure out (not being that familiar with the internals). The lex and fold functions --- have been optimized. It is a pitty that there is no proper print available. - --- Maybe it's safer to copy the other methods here so that we have no dependencies, apart --- from the c library. We need to copy anyway as helpers are local +-- have been optimized. It is a pitty that there is no proper print available. Another thing +-- needed is a default style in ourown theme style definition, as otherwise we get wrong +-- nested lexers, especially if they are larger than a view. This is the hardest part of +-- getting things right. +-- +-- Eventually it might be safer to copy the other methods from lexer.lua here as well so +-- that we have no dependencies, apart from the c library (for which at some point the api +-- will be stable I guess). +-- +-- It's a pitty that there is no scintilua library for the OSX version of scite. Even +-- better would be to have scintilua as integral part of scite. local lpeg = require 'lpeg' |