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| author | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2024-12-09 12:58:25 +0300 |
|---|---|---|
| committer | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2024-12-13 00:58:14 +0300 |
| commit | 244a54a18b7db6af177c9d10f3224772f08d7484 (patch) | |
| tree | 188f5a2f1b2e3311efb65299b639021a231540af /src/goto-commands.c | |
| parent | 7cc78b82e19816220dac5ddf83e51f1140894b42 (diff) | |
| download | sciteco-244a54a18b7db6af177c9d10f3224772f08d7484.tar.gz | |
implemented Scintilla lexer for SciTECO code, i.e. TECO syntax highlighting
* this works by embedding the SciTECO parser and driving it always (exclusively)
in parse-only mode.
* A new teco_state_t::style determines the Scintilla style for any character
accepted in the given state.
* Therefore, the SciTECO lexer is always 100% exact and corresponds to the current
SciTECO grammer - it does not have to be maintained separately.
There are a few exceptions and tweaks, though.
* The contents of curly-brace escapes (`@^Uq{...}`) are rendered as ordinary
code using a separate parser instance.
This can be disabled with the lexer.sciteco.macrodef property.
Unfortunately, SciTECO does not currently allow setting lexer properties (FIXME).
* Labels and comments are currently styled the same.
This could change in the future once we introduce real comments.
* Lexers are usually implemented in C++, but I did not want to draw in C++.
Especially not since we'd have to include parser.h and other SciTECO headers,
that really do not want to keep C++-compatible.
Instead, the lexer is implemented "in the container".
@ES/SCI_SETILEXER/sciteco/ is internally translated to SCI_SETILEXER(NULL)
and we get Scintilla notifications when styling the view becomes necessary.
This is then centrally forwarded to the teco_lexer_style() which
uses the ordinary teco_view_ssm() API for styling.
* Once the command line becomes a Scintilla view even on Curses,
we can enabled syntax highlighting of the command line macro.
Diffstat (limited to 'src/goto-commands.c')
| -rw-r--r-- | src/goto-commands.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/goto-commands.c b/src/goto-commands.c index a8a9689..2144fb0 100644 --- a/src/goto-commands.c +++ b/src/goto-commands.c @@ -27,6 +27,7 @@ #include "string-utils.h" #include "expressions.h" #include "parser.h" +#include "lexer.h" #include "core-commands.h" #include "undo.h" #include "goto.h" @@ -90,7 +91,8 @@ teco_state_label_input(teco_machine_main_t *ctx, gunichar chr, GError **error) } TECO_DEFINE_STATE(teco_state_label, - .initial_cb = (teco_state_initial_cb_t)teco_state_label_initial + .initial_cb = (teco_state_initial_cb_t)teco_state_label_initial, + .style = SCE_SCITECO_LABEL ); static teco_state_t * |