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| author | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2024-12-06 17:20:52 +0300 |
|---|---|---|
| committer | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2024-12-06 17:20:52 +0300 |
| commit | e5884ab2166ab5a03294baa54601b8785e6d9727 (patch) | |
| tree | 0013120eed3e407cd047b734082d7011b9bab94f /src/parser.h | |
| parent | c4e73ae7ef24796cf1f24f0c30d93f2ab21a4572 (diff) | |
| download | sciteco-e5884ab2166ab5a03294baa54601b8785e6d9727.tar.gz | |
support the ::S anchored search (string comparison) command (and ::FD, ::FR, ::FS as well)
* The colon modifier can now occur 2 times.
Specifying `@` more than once or `:` more than twice is an error now.
* Commands do not check for excess colon modifiers - almost every command would have
to check it. Instead, a double colon will simply behave like a single colon on most
commands.
* All search commands inherit the anchored semantics, but it's not very useful in some combinations
like -::S, ::N or ::FK.
That's why the `::` variants are not documented everywhere.
* The lexer.checkheader macro could be simplified and should also be faster now,
speeding up startup.
Eventually this macro can be made superfluous, e.g. by using 1:FB or 0,1^Q::S.
Diffstat (limited to 'src/parser.h')
| -rw-r--r-- | src/parser.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/parser.h b/src/parser.h index 1127dcd..20f73fb 100644 --- a/src/parser.h +++ b/src/parser.h @@ -460,7 +460,12 @@ struct teco_machine_main_t { struct { teco_mode_t mode : 8; - bool modifier_colon : 1; + /** number of `:`-modifiers detected */ + guint modifier_colon : 2; + /** + * Whether the `@`-modifier has been detected. + * This is tracked even in parse-only mode. + */ bool modifier_at : 1; }; guint __flags; @@ -503,7 +508,7 @@ void teco_machine_main_init(teco_machine_main_t *ctx, teco_qreg_table_t *qreg_table_locals, gboolean must_undo); -gboolean teco_machine_main_eval_colon(teco_machine_main_t *ctx); +guint teco_machine_main_eval_colon(teco_machine_main_t *ctx); gboolean teco_machine_main_eval_at(teco_machine_main_t *ctx); gboolean teco_machine_main_step(teco_machine_main_t *ctx, |