initial commit: reads table-less keys from argument only
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parent
14d02fe692
commit
471161c1a3
25
Cargo.lock
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Cargo.lock
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "serde"
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version = "1.0.148"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e53f64bb4ba0191d6d0676e1b141ca55047d83b74f5607e6d8eb88126c52c2dc"
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[[package]]
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name = "tomcat"
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version = "0.0.1"
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dependencies = [
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"toml",
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]
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[[package]]
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name = "toml"
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version = "0.5.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
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dependencies = [
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"serde",
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]
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src/main.rs
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src/main.rs
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// Copyright (c) 2022 Emma Tebibyte
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// SPDX-License-Identifier: AGPL-3.0-or-later
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/* Tomcat is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Affero General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* Tomcat is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see https://www.gnu.org/licenses/.
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*/
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use std::env;
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use std::fs::File;
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use std::io::Read;
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use std::path::Path;
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use toml::Value;
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fn main() {
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let arguments: Vec<String> = env::args().collect();
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let argv0 = &arguments[0];
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let input = &arguments[2];
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let mut content = String::new();
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let file = Path::new(&input);
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if file.is_file() {
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let mut content = String::new();
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File::open(file).expect("").read_to_string(&mut content).unwrap();
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println!("{}", content);
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} else { content = input.to_string(); }
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let keyval: Vec<&str> = arguments[1].split(".").collect();
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let mut toml = content.parse::<Value>().unwrap();
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match toml.get(keyval[1]) {
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Some(value) => println!("{}", value),
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None => println!("{}: {}: No such table or key.", argv0, arguments[1]),
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};
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}
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73
tomcat
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tomcat
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#!/bin/sh
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set -e
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argv0="$0"
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argv1="$1"
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argv2="$2"
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# check usage
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if ! test -n "$1"; then
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printf "Usage: %s [OPTIONS] [TABLE.KEY[INDEX]] [FILE]\n" "$0" 1>&2
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exit 64 # sysexits(3) EX_USAGE
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fi
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# test if input has a period
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if test -n "$(printf "%s\n" "$argv1" | sed -n '/.*\..*/p')"; then
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# cut out everything beyond the first period for TABLE
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TABLE=$(printf "%s\n" "$argv1" | sed -n 's/\..*//p')
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# cut out everything before the first period for KEY
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KEY=$(printf "%s\n" "$argv1" | sed -n 's/^[^.]*\.//p')
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! test -n "$KEY" &&\
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printf "%s: No key specified\n" "$argv0" 1>&2 &&\
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exit 65 # sysexits(3) EX_DATAERR
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else
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printf "%s: No key specified\n" "$argv0" 1>&2
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exit 65 # sysexits(3) EX_DATAERR
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fi
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# remove array index from KEY
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KEY=$(printf "%s\n" "$KEY" | sed 's/\[.*\]//g')
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# set ARR to the array index
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ARR=$(printf "%s\n" "$argv1" | sed -n 's/.\+\[//p' | tr -d ']')
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# test if argument 2 is a file or not
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if test -e "$argv2"; then
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# set TOML to the text from the file
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TOML=$(sed 's/[^"#]#\+.*//g' <"$argv2" | sed 's/^#.*//g' )
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else
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# set TOML to the text from stdin
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TOML=$(printf "%s\n" "$argv2" | sed 's/[^"#]#\+.*//g')
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fi
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if test -n "$TABLE"; then
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KEYS=$(printf "%s\n" "$TOML" |\
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# output only lines between TABLE and the next table
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awk "/^\[$TABLE\]/{flag=1; next} /^\[/{flag=0} flag" - )
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else
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KEYS=$(printf "%s\n" "$TOML" |\
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# output only lines before the first table
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awk '1;/^\[/{exit}' - | sed -n '/^[^[]/p')
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fi
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# set VAL to the parsed KEYS list
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VAL=$(printf "%s\n" "$KEYS" |\
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# remove the key from the string and delineate arrays, removing
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# brackets, trailing commas, and leading spaces
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sed -n "s/$KEY *= *//p" | sed 's/", "/ /g' | tr -d '[]"' |\
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sed 's/, *$//g' | sed 's/^ \+//g' | sed 's/ \+$//g')
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# test if ARR is set; if it is, then we have an array index to grab
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if test -n "$ARR"; then
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# change the line delineator to newlines for parsing and output the result
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printf "%s\n" "$VAL" | sed 's/ /\n/g' | head -n "$ARR" |\
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tail -n 1
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elif ! test -n "$VAL"; then
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printf "%s: %s: No such key or table\n" "$argv0" "$argv1" 1>&2
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exit 65 # sysexits(3) EX_DATAERR
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else
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printf "%s\n" "$VAL"
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fi
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exit 0
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