Merge branch 'rust'
This commit is contained in:
commit
e6a82cfd36
|
|
@ -0,0 +1 @@
|
|||
target/
|
||||
|
|
@ -0,0 +1,288 @@
|
|||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 3
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|
||||
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dependencies = [
|
||||
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|
||||
]
|
||||
|
||||
[[package]]
|
||||
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dependencies = [
|
||||
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"cexpr",
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"clang-sys",
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||||
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||||
"lazycell",
|
||||
"log",
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||||
"peeking_take_while",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"regex",
|
||||
"rustc-hash",
|
||||
"shlex",
|
||||
"syn",
|
||||
"which",
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||||
]
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||||
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"libc",
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||||
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||||
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||||
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||||
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||||
"cfg-if",
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"winapi",
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]
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|
||||
[[package]]
|
||||
name = "log"
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||||
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||||
[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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"memchr",
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"minimal-lexical",
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dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "quote"
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||||
dependencies = [
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||||
"proc-macro2",
|
||||
]
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||||
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||||
[[package]]
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||||
name = "regex"
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"aho-corasick",
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||||
"memchr",
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||||
"regex-automata",
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||||
"regex-syntax",
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||||
]
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||||
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||||
[[package]]
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||||
name = "regex-automata"
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"memchr",
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"regex-syntax",
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]
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[[package]]
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[[package]]
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name = "serde"
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||||
[[package]]
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name = "shlex"
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version = "1.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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||||
name = "syn"
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version = "1.0.109"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
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||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
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||||
"unicode-ident",
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||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tomcat"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"toml",
|
||||
"yacexits",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "toml"
|
||||
version = "0.5.11"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f4f7f0dd8d50a853a531c426359045b1998f04219d88799810762cd4ad314234"
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||||
dependencies = [
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-ident"
|
||||
version = "1.0.10"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "22049a19f4a68748a168c0fc439f9516686aa045927ff767eca0a85101fb6e73"
|
||||
|
||||
[[package]]
|
||||
name = "which"
|
||||
version = "4.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2441c784c52b289a054b7201fc93253e288f094e2f4be9058343127c4226a269"
|
||||
dependencies = [
|
||||
"either",
|
||||
"libc",
|
||||
"once_cell",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.3.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
||||
dependencies = [
|
||||
"winapi-i686-pc-windows-gnu",
|
||||
"winapi-x86_64-pc-windows-gnu",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-i686-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-x86_64-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
|
||||
[[package]]
|
||||
name = "yacexits"
|
||||
version = "0.1.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "53fe740dd05c1bbc919431e842e6c1bea30195e0518ae99cae35b7f0730ddc18"
|
||||
dependencies = [
|
||||
"bindgen",
|
||||
"libc",
|
||||
]
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
[package]
|
||||
name = "tomcat"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
license = "AGPL-3.0-or-later"
|
||||
authors = [ "Emma Tebibyte <emma@tebibyte.media>" ]
|
||||
|
||||
[dependencies]
|
||||
toml = "0.5.9"
|
||||
yacexits = "0.1.2"
|
||||
33
README.md
33
README.md
|
|
@ -1,10 +1,33 @@
|
|||
`tomcat` – a [TOML](https://toml.io) parser in POSIX shell
|
||||
`tomcat` – a minimal [TOML](https://toml.io) parser for the command line.
|
||||
|
||||
## Installation
|
||||
|
||||
### From Source
|
||||
|
||||
Clone this repository and move the `tomcat` binary wherever your operating
|
||||
system stores locally-installed binaries. This is usually `/usr/local/bin` or
|
||||
`$HOME/.local/bin` for your user. Make sure the installation location is in your
|
||||
`$PATH`.
|
||||
1. Run `cargo --install --git https://git.tebibyte.media/emma/tomcat.git`
|
||||
2. ???
|
||||
3. Profit
|
||||
|
||||
Also make sure that your cargo `bin` directory (by default in
|
||||
`"$CARGO_HOME"/bin`) is in your `$PATH`; I recommend symlinking the folder to
|
||||
`"$HOME/.local/bin` and adding that to your user `$PATH`.
|
||||
|
||||
## Usage
|
||||
|
||||
Assuming the TOML file being parsed is `file.toml`:
|
||||
|
||||
To get the value of top-level key `notable`:
|
||||
|
||||
`tomcat notable file.toml`
|
||||
|
||||
To get the value of `key` from the `main` table:
|
||||
|
||||
`tomcat main.key file.toml`
|
||||
|
||||
To get the value of `key` from the subtable `subtab` in table `main`:
|
||||
|
||||
`tomcat main.subtab.key file.toml`
|
||||
|
||||
To get the value of index `3` in array `arr` in table `main`:
|
||||
|
||||
`tomcat main.arr[3] file.toml`
|
||||
|
|
|
|||
|
|
@ -0,0 +1,171 @@
|
|||
/*
|
||||
* Copyright (c) 2022–2023 Emma Tebibyte
|
||||
* SPDX-License-Identifier: AGPL-3.0-or-later
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify it under
|
||||
* the terms of the GNU Affero General Public License as published by the Free
|
||||
* Software Foundation, either version 3 of the License, or (at your option) any
|
||||
* later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||
* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
|
||||
* details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see https://www.gnu.org/licenses/.
|
||||
*/
|
||||
|
||||
use std::{
|
||||
env::args,
|
||||
fs::File,
|
||||
io::Read,
|
||||
iter::Peekable,
|
||||
os::fd::{ FromRawFd },
|
||||
path::Path,
|
||||
str::FromStr,
|
||||
};
|
||||
|
||||
use toml::Value;
|
||||
use yacexits::*;
|
||||
|
||||
fn parse_toml(
|
||||
mut root: Value,
|
||||
mut tabkey: Peekable<std::slice::Iter<'_, &str>>,
|
||||
index: Option<usize>,
|
||||
) -> Result<String, (String, u32)> {
|
||||
let mut out = String::new();
|
||||
|
||||
while let Some(item) = tabkey.next() {
|
||||
let mut value = match root.get(item) {
|
||||
Some(val) => val,
|
||||
None => {
|
||||
return Err((format!("{}: No such table or key.", item), EX_DATAERR));
|
||||
},
|
||||
};
|
||||
|
||||
match value {
|
||||
Value::Array(array) => {
|
||||
let i = match index {
|
||||
Some(i) => i,
|
||||
None => {
|
||||
for v in array.iter() {
|
||||
out.push_str(&format!("{}\n", v.to_string()));
|
||||
}
|
||||
continue;
|
||||
},
|
||||
};
|
||||
|
||||
match array.get(i) {
|
||||
Some(val) => value = val,
|
||||
None => {
|
||||
return Err((format!("No value at index {}.", i), EX_DATAERR));
|
||||
},
|
||||
};
|
||||
},
|
||||
Value::Table(table) => {
|
||||
if tabkey.peek().is_some() {
|
||||
root = toml::Value::Table(table.to_owned());
|
||||
continue;
|
||||
};
|
||||
},
|
||||
_ => {
|
||||
if tabkey.peek().is_some() {
|
||||
return Err((format!("{}: Not a table.", item), EX_DATAERR));
|
||||
}
|
||||
},
|
||||
};
|
||||
|
||||
match value {
|
||||
Value::Array(_) => {},
|
||||
Value::Boolean(boolean) => out.push_str(&format!("{:?}\n", boolean)),
|
||||
Value::Datetime(datetime) => out.push_str(&format!("{:?}\n", datetime)),
|
||||
Value::Float(float) => out.push_str(&format!("{:?}\n", float)),
|
||||
Value::Integer(int) => out.push_str(&format!("{:?}\n", int)),
|
||||
Value::String(string) => {
|
||||
let contents = string.to_owned();
|
||||
let mut lines: Vec<&str> = contents.lines().collect();
|
||||
if lines.last().unwrap().is_empty() { _ = lines.pop(); }
|
||||
|
||||
for line in lines.iter() { out.push_str(&format!("{}\n", line)); }
|
||||
},
|
||||
_ => return Err((format!("{:?}: No such key.", item), EX_DATAERR)),
|
||||
};
|
||||
}
|
||||
Ok(out)
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let argv: Vec<String> = args().collect();
|
||||
let usage_info = format!("Usage: {} [table.]key[[index]] [file...]", argv[0]);
|
||||
|
||||
if argv.len() <= 1 {
|
||||
eprintln!("{}", usage_info);
|
||||
exit(EX_USAGE);
|
||||
}
|
||||
|
||||
let input = argv.get(2).unwrap_or(&"".to_owned()).to_owned();
|
||||
|
||||
let mut content = Vec::new();
|
||||
|
||||
match input.as_str() {
|
||||
"-" | "" => unsafe { File::from_raw_fd(0) },
|
||||
_ => {
|
||||
File::open(Path::new(&input)).unwrap_or_else(|_| {
|
||||
eprintln!(
|
||||
"{}: {}: No such file or directory.",
|
||||
argv[0],
|
||||
&input
|
||||
);
|
||||
exit(EX_UNAVAILABLE);
|
||||
})
|
||||
},
|
||||
}.read_to_end(&mut content).unwrap_or_else(|_| {
|
||||
eprintln!("{}: Could not read input.", argv[0]);
|
||||
exit(EX_OSERR);
|
||||
});
|
||||
|
||||
|
||||
let mut tabkey: Vec<&str> = argv[1].split(".").collect();
|
||||
let mut indexvec = Vec::new();
|
||||
let mut index: Option<usize> = None;
|
||||
|
||||
if tabkey.iter().skip(1).peekable().peek().is_some() {
|
||||
indexvec = tabkey[1].split(&['[', ']'][..]).collect();
|
||||
tabkey[1] = indexvec.remove(0);
|
||||
};
|
||||
|
||||
if ! indexvec.is_empty() {
|
||||
let istr = indexvec.remove(0);
|
||||
match usize::from_str(istr) {
|
||||
Ok(i) => index = Some(i),
|
||||
Err(_) => {
|
||||
eprintln!("{}: {}: Cannot index by given value.", argv[0], istr);
|
||||
exit(EX_USAGE);
|
||||
},
|
||||
};
|
||||
}
|
||||
|
||||
let root = String::from_utf8(content)
|
||||
.unwrap_or_else(|_| {
|
||||
eprintln!("{}: Input is not valid UTF-8.", argv[0]);
|
||||
exit(EX_DATAERR);
|
||||
})
|
||||
.parse::<Value>()
|
||||
.unwrap_or_else(|_| {
|
||||
eprintln!("{}: Unable to parse TOML.", argv[0]);
|
||||
exit(EX_DATAERR);
|
||||
});
|
||||
|
||||
let valiter = tabkey.iter().peekable();
|
||||
print!(
|
||||
"{}",
|
||||
match parse_toml(root, valiter, index) {
|
||||
Ok(val) => val,
|
||||
Err((err, code)) => {
|
||||
eprintln!("{}: {}", argv[0], err);
|
||||
exit(code);
|
||||
},
|
||||
},
|
||||
);
|
||||
}
|
||||
73
tomcat
73
tomcat
|
|
@ -1,73 +0,0 @@
|
|||
#!/bin/sh
|
||||
|
||||
set -e
|
||||
|
||||
argv0="$0"
|
||||
argv1="$1"
|
||||
argv2="$2"
|
||||
|
||||
# check usage
|
||||
if ! test -n "$1"; then
|
||||
printf "Usage: %s [OPTIONS] [TABLE.KEY[INDEX]] [FILE]\n" "$0" 1>&2
|
||||
exit 64 # sysexits(3) EX_USAGE
|
||||
fi
|
||||
|
||||
# test if input has a period
|
||||
if test -n "$(printf "%s\n" "$argv1" | sed -n '/.*\..*/p')"; then
|
||||
# cut out everything beyond the first period for TABLE
|
||||
TABLE=$(printf "%s\n" "$argv1" | sed -n 's/\..*//p')
|
||||
|
||||
# cut out everything before the first period for KEY
|
||||
KEY=$(printf "%s\n" "$argv1" | sed -n 's/^[^.]*\.//p')
|
||||
! test -n "$KEY" &&\
|
||||
printf "%s: No key specified\n" "$argv0" 1>&2 &&\
|
||||
exit 65 # sysexits(3) EX_DATAERR
|
||||
else
|
||||
printf "%s: No key specified\n" "$argv0" 1>&2
|
||||
exit 65 # sysexits(3) EX_DATAERR
|
||||
fi
|
||||
|
||||
# remove array index from KEY
|
||||
KEY=$(printf "%s\n" "$KEY" | sed 's/\[.*\]//g')
|
||||
# set ARR to the array index
|
||||
ARR=$(printf "%s\n" "$argv1" | sed -n 's/.\+\[//p' | tr -d ']')
|
||||
|
||||
# test if argument 2 is a file or not
|
||||
if test -e "$argv2"; then
|
||||
# set TOML to the text from the file
|
||||
TOML=$(sed 's/[^"#]#\+.*//g' <"$argv2" | sed 's/^#.*//g' )
|
||||
else
|
||||
# set TOML to the text from stdin
|
||||
TOML=$(printf "%s\n" "$argv2" | sed 's/[^"#]#\+.*//g')
|
||||
fi
|
||||
|
||||
if test -n "$TABLE"; then
|
||||
KEYS=$(printf "%s\n" "$TOML" |\
|
||||
# output only lines between TABLE and the next table
|
||||
awk "/^\[$TABLE\]/{flag=1; next} /^\[/{flag=0} flag" - )
|
||||
else
|
||||
KEYS=$(printf "%s\n" "$TOML" |\
|
||||
# output only lines before the first table
|
||||
awk '1;/^\[/{exit}' - | sed -n '/^[^[]/p')
|
||||
fi
|
||||
|
||||
# set VAL to the parsed KEYS list
|
||||
VAL=$(printf "%s\n" "$KEYS" |\
|
||||
# remove the key from the string and delineate arrays, removing
|
||||
# brackets, trailing commas, and leading spaces
|
||||
sed -n "s/$KEY *= *//p" | sed 's/", "/ /g' | tr -d '[]"' |\
|
||||
sed 's/, *$//g' | sed 's/^ \+//g' | sed 's/ \+$//g')
|
||||
|
||||
# test if ARR is set; if it is, then we have an array index to grab
|
||||
if test -n "$ARR"; then
|
||||
# change the line delineator to newlines for parsing and output the result
|
||||
printf "%s\n" "$VAL" | sed 's/ /\n/g' | head -n "$ARR" |\
|
||||
tail -n 1
|
||||
elif ! test -n "$VAL"; then
|
||||
printf "%s: %s: No such key or table\n" "$argv0" "$argv1" 1>&2
|
||||
exit 65 # sysexits(3) EX_DATAERR
|
||||
else
|
||||
printf "%s\n" "$VAL"
|
||||
fi
|
||||
|
||||
exit 0
|
||||
Loading…
Reference in New Issue