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| author | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2025-08-31 02:24:11 +0300 |
|---|---|---|
| committer | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2025-08-31 02:24:11 +0300 |
| commit | 9425ad37ec95a40dc039169031259161c92cc217 (patch) | |
| tree | 11525a5d372eba9feac20b6ff47ef91e5cbc3b47 /tests | |
| parent | e82dc6639e829490cb11267fa4a49ef97c6459ae (diff) | |
| download | sciteco-9425ad37ec95a40dc039169031259161c92cc217.tar.gz | |
support <:O>: if a label is not found, continue execution after the go-to statement
* this is a SciTECO extension - it's not in TECO-11
* Allows for select-case-like constructs with default-clauses as in
:Os.^EQa$
!* default *!
!s.foo!
!* ... *!
!s.bar!
!* ... *!
* Consistent with nOlabel0,label1,...$ if <n> is out of range.
Unfortunately this form of computed goto is not applicable when
"selecting" by strings or non-consecutive integers.
* In order to continue after the <:O> statement, we must keep the
program counter along with the label we were looking for.
At the end of the macro, the PC is restored instead of throwing
an error.
* Since that would be very inefficient in loops - where potentially
all iterations would result in rescanning till the end of the
macro - we now store a completed-flag in the goto table.
If it is set while trying to :O to an unknown label, we can
just continue execution.
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/testsuite.at | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tests/testsuite.at b/tests/testsuite.at index 3cca113..0079c38 100644 --- a/tests/testsuite.at +++ b/tests/testsuite.at @@ -117,6 +117,7 @@ AT_CLEANUP AT_SETUP([Gotos and labels]) TE_CHECK([[@O//]], 1, ignore, ignore) TE_CHECK([[^^XUq @O/s.^EUq/ (0/0) !s.X!]], 0, ignore, ignore) +TE_CHECK([[:@O/foo/]], 0, ignore, ignore) TE_CHECK([[1@O/foo,bar/ (0/0) !bar!]], 0, ignore, ignore) # No-op gotos TE_CHECK([[-1@O/foo/ 1@O/foo/ @O/,foo/]], 0, ignore, ignore) |