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Instead of using a custom parse function to process {}, treat it as a

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set of statements and parse with yacc, then convert back to a string as
the last step. This means the rules are consistent inside and outside
{}, %if and friends work at the right time, and the final result isn't
littered with unnecessary newlines.
This commit is contained in:
nicm
2020-06-04 07:12:05 +00:00
parent 3f6af4156f
commit b3782d2dc8
4 changed files with 85 additions and 160 deletions
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@ -552,17 +552,14 @@ is removed) and are not treated as having any special meaning - so for example
variable.
.El
.Pp
Braces are similar to single quotes in that the text inside is taken literally
without any replacements but this also includes line continuation.
Braces can span multiple lines in which case a literal newline is included in the
string.
They are designed to avoid the need for additional escaping when passing a group
of
Braces are parsed as a configuration file (so conditions such as
.Ql %if
are processed) and then converted into a string.
They are designed to avoid the need for additional escaping when passing a
group of
.Nm
or shell commands as an argument (for example to
.Ic if-shell
or
.Ic pipe-pane ) .
commands as an argument (for example to
.Ic if-shell ) .
These two examples produce an identical command - note that no escaping is
needed when using {}:
.Bd -literal -offset indent
@ -570,7 +567,7 @@ if-shell true {
display -p 'brace-dollar-foo: }$foo'
}
if-shell true "\en display -p 'brace-dollar-foo: }\e$foo'\en"
if-shell true "display -p 'brace-dollar-foo: }\e$foo'"
.Ed
.Pp
Braces may be enclosed inside braces, for example: