diff options
Diffstat (limited to 'man')
| -rw-r--r-- | man/1/0intro | 12 | ||||
| -rw-r--r-- | man/1/sh-std | 19 | ||||
| -rw-r--r-- | man/2/command | 3 | ||||
| -rw-r--r-- | man/2/sh | 3 |
4 files changed, 18 insertions, 19 deletions
diff --git a/man/1/0intro b/man/1/0intro index 0689e614..4d7335a1 100644 --- a/man/1/0intro +++ b/man/1/0intro @@ -164,18 +164,18 @@ Volume 2 contains papers and other documentation about Inferno. .PP The back of this volume contains a permuted index. .SH DIAGNOSTICS +On successful execution, a process can simply exit. Programs (modules) that wish to return error status to the command interpreters .IR sh (1) and .IR mash (1) -do so by executing a -.IR sys-raise -(see -.IR sys-exception (2)) -with an error string starting with +do so by raising a special exception (eg, using the +.B raise +statement in Limbo). +The exception's value is a string +beginning with the text .RB ` fail: '. -On successful execution, a process can simply exit. .SH SEE ALSO .IR intro (2), .IR intro (3), diff --git a/man/1/sh-std b/man/1/sh-std index b3367c7f..bfaa0873 100644 --- a/man/1/sh-std +++ b/man/1/sh-std @@ -334,8 +334,9 @@ raises the exception will be truncated if it is longer than that allowed by .I raise -(see -.IR sys-exception (2)). +(128 bytes in +.IR utf (6) +representation). Control will be transferred to the innermost rescue block in the same process that matches @@ -365,13 +366,13 @@ matching where .I pattern is of the same form accepted by -.I rescue -(see -.IR sys-exception (2)); -i.e. an exact match, or a prefix -followed by an asterisk -.RB ( * ) -which will match an exception starting with the prefix. +Limbo's +.B exception +handling statement. +Specifically, the pattern is a string that matches literally, +except that a trailing +.RB ` * ' +character will match any sequence of characters. If an exception is caught, .B rescue executes diff --git a/man/2/command b/man/2/command index d46f9525..58d773b0 100644 --- a/man/2/command +++ b/man/2/command @@ -128,5 +128,4 @@ because the parent is blocked on the receive. .IR sh (1), .IR wm (1), .IR sh (2), -.IR sys-pctl (2), -.IR sys-exception (2) +.IR sys-pctl (2) @@ -557,5 +557,4 @@ The file used by the shell to wait for dead child processes. .IR sh (1), .IR sh-std (1), .IR sh-expr (1), -.IR sh-tk (1), -.IR sys-exception (2) +.IR sh-tk (1) |