wash/bshell
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

runtime: implement an extensible line editor

Browse Source 
the line editor supports custom keybinds and data storage, allowing for
a wide range of functionality to be implemented via plugins.

included plugins include:
* core: basic input and cursor movement.
* history: input history storage and retrieval (unfinished)
* highlight: support for colour-highlighting the line buffer (unfinished)
* syntax: parses the line buffer and uses `highlight` to apply syntax highlighting (unfinished).
* shell-integration:
  - allows a `prompt` function to be defined, which will be called to get the text to
    be used for the prompt
  - exposes key properties of the line editor to the shell environment, allowing line editor
    functionality to be extended via shell scripts.
This commit is contained in:
max 🍓
2026-06-20 15:13:34 +01:00
parent f622c2eba3
commit ad8b284869
21 changed files with 1857 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
bshell.runtime/line-editor/highlight.c
+61
View File
@@ -0,0 +1,61 @@
#include <bshell/line-editor/highlight.h>
#include <bshell/line-editor/line-editor.h>
#include <bshell/line-editor/plugin.h>
#include <fx/term/tty.h>
struct bshell_line_ed_highlight_p {
};
static void init(fx_object *obj, void *priv)
{
}
static void fini(fx_object *obj, void *priv)
{
}
static enum bshell_status render_buffer(
bshell_line_ed_plugin *plugin,
bshell_line_ed *ed)
{
fx_string *buf = bshell_line_ed_get_buffer(ed);
fx_tty *tty = bshell_line_ed_get_tty(ed);
const char *s = fx_string_get_cstr(buf);
for (unsigned long i = 0; *s; i++) {
fx_wchar c = fx_wchar_utf8_codepoint_decode(s);
unsigned int stride = fx_wchar_utf8_codepoint_size(c);
if (stride == 0) {
break;
}
char cs[5] = {0};
fx_wchar_utf8_codepoint_encode(c, cs);
fx_tty_puts(tty, 0, cs);
s += stride;
}
fx_tty_puts(tty, 0, "[reset]");
return BSHELL_SUCCESS;
}
FX_TYPE_CLASS_BEGIN(bshell_line_ed_highlight)
FX_TYPE_VTABLE_INTERFACE_BEGIN(fx_object, FX_TYPE_OBJECT)
FX_INTERFACE_ENTRY(to_string) = NULL;
FX_TYPE_VTABLE_INTERFACE_END(fx_object, FX_TYPE_OBJECT)
FX_TYPE_VTABLE_INTERFACE_BEGIN(
bshell_line_ed_plugin,
BSHELL_TYPE_LINE_EDITOR_PLUGIN)
FX_INTERFACE_ENTRY(p_render_buffer) = render_buffer;
FX_TYPE_VTABLE_INTERFACE_END(bshell_command, BSHELL_TYPE_COMMAND)
FX_TYPE_CLASS_END(bshell_line_ed_highlight)
FX_TYPE_DEFINITION_BEGIN(bshell_line_ed_highlight)
FX_TYPE_ID(0x162823ef, 0x4893, 0x4089, 0xa4f6, 0xf015a1976881);
FX_TYPE_NAME("bshell.runtime.line_editor.plugins.highlight");
FX_TYPE_EXTENDS(BSHELL_TYPE_LINE_EDITOR_PLUGIN);
FX_TYPE_CLASS(bshell_line_ed_highlight_class);
FX_TYPE_INSTANCE_INIT(init);
FX_TYPE_INSTANCE_FINI(fini);
FX_TYPE_INSTANCE_PRIVATE(struct bshell_line_ed_highlight_p);
FX_TYPE_DEFINITION_END(bshell_line_ed_highlight)