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Diffstat (limited to 'docs/fs.md')
| -rw-r--r-- | docs/fs.md | 11 |
1 files changed, 8 insertions, 3 deletions
@@ -406,8 +406,10 @@ whole: a mount cuts a big write at its message size (4 KiB through the kernel's, 8 KiB from a client that asks), anywhere, and each piece comes as a write of its own, so the open keeps a last line with no newline yet, or an Edit block whose text has not ended, until its next write, and runs it -then; what is left when it closes runs at the close. A fragment never runs -on its own. A line or Edit block held past 1 MiB is refused (EINVAL). +then; what is left when it closes runs at the close, where an Edit block +whose `{` or text never ended fails as any unclosed block does (``unmatched +`{'``, logged as an `err`; nothing changes). A fragment never runs on its +own. A line or Edit block held past 1 MiB is refused (EINVAL). A look takes acme's addresses after a colon (editors/acme/look.c:450): a line written to `look` as `file:/re/`, `file:#n`, `file:$` or any address @@ -509,7 +511,10 @@ takes in `file:12:5`: `12:5` is the point at line 12, column 5, and it composes like any simple address (`12:5,14:1`, `12:5+#3`). The column is in bytes from 1, as Look's is, clamped to the end of the line and snapped back to the start of the rune it falls in; a line past the end, or -column 0, is `address out of range`. sam would read `12:5` as a syntax +column 0, is `address out of range`. Since the column counts bytes, a +column a tool gives in characters (pytest's, a compiler's) is the same +only on an ASCII line; elsewhere address the line and search it +(`12/name/`) or use `#n`. sam would read `12:5` as a syntax error. Truncating `data` or `xdata` deletes the range `addr` names and nothing else, so a shell's `echo NEW > data` replaces that range, `: > data` |