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| author | Jesse Luehrs <doy@tozt.net> | 2022-01-17 01:19:08 -0500 |
|---|---|---|
| committer | Jesse Luehrs <doy@tozt.net> | 2022-01-17 01:23:08 -0500 |
| commit | 9b1595b795121d233cd0cf32537661839e318914 (patch) | |
| tree | 26edb4376ed189373e8a4f3b3d41da6c27d23bf4 /src/shell.pest | |
| parent | 1327c2a7ba3b81fe69e4126270b2cfe24c8aa4ee (diff) | |
| download | nbsh-9b1595b795121d233cd0cf32537661839e318914.tar.gz nbsh-9b1595b795121d233cd0cf32537661839e318914.zip | |
basic subshell implementation
Diffstat (limited to 'src/shell.pest')
| -rw-r--r-- | src/shell.pest | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/shell.pest b/src/shell.pest index 8a51070..fdfb1b1 100644 --- a/src/shell.pest +++ b/src/shell.pest @@ -3,7 +3,8 @@ escape_char = @{ "\\" ~ ANY } bareword_char = @{ escape_char | - !("|" | ";" | "\"" | "'" | "$" | "{" | WHITESPACE | COMMENT) ~ ANY + !("|" | ";" | "\"" | "'" | "$" | "{" | "(" | ")" | WHITESPACE | COMMENT) + ~ ANY } single_string_char = @{ basic_escape_char | (!"'" ~ ANY) } double_string_char = @{ escape_char | (!("\"" | "$") ~ ANY) } @@ -44,8 +45,9 @@ word = ${ word_part+ } word_or_redirect = ${ redir_prefix? ~ word } exe = ${ word_or_redirect ~ (w ~ word_or_redirect)* } +subshell = ${ "(" ~ w? ~ commands ~ w? ~ ")" } list = ${ word ~ (w ~ word)* } -pipeline = ${ exe ~ (w? ~ "|" ~ w? ~ exe)* } +pipeline = ${ (subshell | exe) ~ (w? ~ "|" ~ w? ~ (subshell | exe))* } control_if = ${ "if" ~ w ~ pipeline } control_while = ${ "while" ~ w ~ pipeline } |